diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/sana_video/pipeline_sana_video_i2v.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/sana_video/pipeline_sana_video_i2v.py new file mode 100644 index 0000000000000000000000000000000000000000..e87880b64cee1eaf4f91a7ce54d5fdab34b27a79 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/sana_video/pipeline_sana_video_i2v.py @@ -0,0 +1,1066 @@ +# Copyright 2025 SANA-Video Authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +import inspect +import re +import urllib.parse as ul +import warnings +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import PIL +import torch +from transformers import Gemma2PreTrainedModel, GemmaTokenizer, GemmaTokenizerFast + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput +from ...loaders import SanaLoraLoaderMixin +from ...models import AutoencoderDC, AutoencoderKLWan, SanaVideoTransformer3DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import ( + BACKENDS_MAPPING, + USE_PEFT_BACKEND, + is_bs4_available, + is_ftfy_available, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import get_device, is_torch_version, randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import SanaVideoPipelineOutput +from .pipeline_sana_video import ASPECT_RATIO_480_BIN, ASPECT_RATIO_720_BIN + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_bs4_available(): + from bs4 import BeautifulSoup + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import SanaImageToVideoPipeline + >>> from diffusers.utils import export_to_video, load_image + + >>> pipe = SanaImageToVideoPipeline.from_pretrained("Efficient-Large-Model/SANA-Video_2B_480p_diffusers") + >>> pipe.transformer.to(torch.bfloat16) + >>> pipe.text_encoder.to(torch.bfloat16) + >>> pipe.vae.to(torch.float32) + >>> pipe.to("cuda") + >>> motion_score = 30 + + >>> prompt = "A woman stands against a stunning sunset backdrop, her long, wavy brown hair gently blowing in the breeze. She wears a sleeveless, light-colored blouse with a deep V-neckline, which accentuates her graceful posture. The warm hues of the setting sun cast a golden glow across her face and hair, creating a serene and ethereal atmosphere. The background features a blurred landscape with soft, rolling hills and scattered clouds, adding depth to the scene. The camera remains steady, capturing the tranquil moment from a medium close-up angle." + >>> negative_prompt = "A chaotic sequence with misshapen, deformed limbs in heavy motion blur, sudden disappearance, jump cuts, jerky movements, rapid shot changes, frames out of sync, inconsistent character shapes, temporal artifacts, jitter, and ghosting effects, creating a disorienting visual experience." + >>> motion_prompt = f" motion score: {motion_score}." + >>> prompt = prompt + motion_prompt + >>> image = load_image("https://raw.githubusercontent.com/NVlabs/Sana/refs/heads/main/asset/samples/i2v-1.png") + + >>> output = pipe( + ... image=image, + ... prompt=prompt, + ... negative_prompt=negative_prompt, + ... height=480, + ... width=832, + ... frames=81, + ... guidance_scale=6, + ... num_inference_steps=50, + ... generator=torch.Generator(device="cuda").manual_seed(42), + ... ).frames[0] + + >>> export_to_video(output, "sana-ti2v-output.mp4", fps=16) + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class SanaImageToVideoPipeline(DiffusionPipeline, SanaLoraLoaderMixin): + r""" + Pipeline for image/text-to-video generation using [Sana](https://huggingface.co/papers/2509.24695). This model + inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods implemented for all + pipelines (downloading, saving, running on a particular device, etc.). + + Args: + tokenizer ([`GemmaTokenizer`] or [`GemmaTokenizerFast`]): + The tokenizer used to tokenize the prompt. + text_encoder ([`Gemma2PreTrainedModel`]): + Text encoder model to encode the input prompts. + vae ([`AutoencoderKLWan` or `AutoencoderDCAEV`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + transformer ([`SanaVideoTransformer3DModel`]): + Conditional Transformer to denoise the input latents. + scheduler ([`FlowMatchEulerDiscreteScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded video latents. + """ + + # fmt: off + bad_punct_regex = re.compile(r"[" + "#®•©™&@·º½¾¿¡§~" + r"\)" + r"\(" + r"\]" + r"\[" + r"\}" + r"\{" + r"\|" + "\\" + r"\/" + r"\*" + r"]{1,}") + # fmt: on + + model_cpu_offload_seq = "text_encoder->transformer->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: Union[GemmaTokenizer, GemmaTokenizerFast], + text_encoder: Gemma2PreTrainedModel, + vae: Union[AutoencoderDC, AutoencoderKLWan], + transformer: SanaVideoTransformer3DModel, + scheduler: FlowMatchEulerDiscreteScheduler, + ): + super().__init__() + + self.register_modules( + tokenizer=tokenizer, text_encoder=text_encoder, vae=vae, transformer=transformer, scheduler=scheduler + ) + + self.vae_scale_factor_temporal = self.vae.config.scale_factor_temporal if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = self.vae.config.scale_factor_spatial if getattr(self, "vae", None) else 8 + + self.vae_scale_factor = self.vae_scale_factor_spatial + + self.transformer_spatial_patch_size = ( + self.transformer.config.patch_size[1] if getattr(self, "transformer", None) is not None else 1 + ) + self.transformer_temporal_patch_size = ( + self.transformer.config.patch_size[0] if getattr(self, "transformer") is not None else 1 + ) + + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + + # Copied from diffusers.pipelines.sana.pipeline_sana.SanaPipeline._get_gemma_prompt_embeds + def _get_gemma_prompt_embeds( + self, + prompt: Union[str, List[str]], + device: torch.device, + dtype: torch.dtype, + clean_caption: bool = False, + max_sequence_length: int = 300, + complex_human_instruction: Optional[List[str]] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`, *optional*): + torch device to place the resulting embeddings on + clean_caption (`bool`, defaults to `False`): + If `True`, the function will preprocess and clean the provided caption before encoding. + max_sequence_length (`int`, defaults to 300): Maximum sequence length to use for the prompt. + complex_human_instruction (`list[str]`, defaults to `complex_human_instruction`): + If `complex_human_instruction` is not empty, the function will use the complex Human instruction for + the prompt. + """ + prompt = [prompt] if isinstance(prompt, str) else prompt + + if getattr(self, "tokenizer", None) is not None: + self.tokenizer.padding_side = "right" + + prompt = self._text_preprocessing(prompt, clean_caption=clean_caption) + + # prepare complex human instruction + if not complex_human_instruction: + max_length_all = max_sequence_length + else: + chi_prompt = "\n".join(complex_human_instruction) + prompt = [chi_prompt + p for p in prompt] + num_chi_prompt_tokens = len(self.tokenizer.encode(chi_prompt)) + max_length_all = num_chi_prompt_tokens + max_sequence_length - 2 + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_length_all, + truncation=True, + add_special_tokens=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + + prompt_attention_mask = text_inputs.attention_mask + prompt_attention_mask = prompt_attention_mask.to(device) + + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=prompt_attention_mask) + prompt_embeds = prompt_embeds[0].to(dtype=dtype, device=device) + + return prompt_embeds, prompt_attention_mask + + # Copied from diffusers.pipelines.sana_video.pipeline_sana_video.SanaVideoPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + do_classifier_free_guidance: bool = True, + negative_prompt: str = "", + num_videos_per_prompt: int = 1, + device: Optional[torch.device] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + prompt_attention_mask: Optional[torch.Tensor] = None, + negative_prompt_attention_mask: Optional[torch.Tensor] = None, + clean_caption: bool = False, + max_sequence_length: int = 300, + complex_human_instruction: Optional[List[str]] = None, + lora_scale: Optional[float] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt not to guide the video generation. If not defined, one has to pass `negative_prompt_embeds` + instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). For + PixArt-Alpha, this should be "". + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + whether to use classifier free guidance or not + num_videos_per_prompt (`int`, *optional*, defaults to 1): + number of videos that should be generated per prompt + device: (`torch.device`, *optional*): + torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. For Sana, it's should be the embeddings of the "" string. + clean_caption (`bool`, defaults to `False`): + If `True`, the function will preprocess and clean the provided caption before encoding. + max_sequence_length (`int`, defaults to 300): Maximum sequence length to use for the prompt. + complex_human_instruction (`list[str]`, defaults to `complex_human_instruction`): + If `complex_human_instruction` is not empty, the function will use the complex Human instruction for + the prompt. + """ + + if device is None: + device = self._execution_device + + if self.text_encoder is not None: + dtype = self.text_encoder.dtype + else: + dtype = None + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, SanaLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if getattr(self, "tokenizer", None) is not None: + self.tokenizer.padding_side = "right" + + # See Section 3.1. of the paper. + max_length = max_sequence_length + select_index = [0] + list(range(-max_length + 1, 0)) + + if prompt_embeds is None: + prompt_embeds, prompt_attention_mask = self._get_gemma_prompt_embeds( + prompt=prompt, + device=device, + dtype=dtype, + clean_caption=clean_caption, + max_sequence_length=max_sequence_length, + complex_human_instruction=complex_human_instruction, + ) + + prompt_embeds = prompt_embeds[:, select_index] + prompt_attention_mask = prompt_attention_mask[:, select_index] + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings and attention mask for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_videos_per_prompt, seq_len, -1) + prompt_attention_mask = prompt_attention_mask.view(bs_embed, -1) + prompt_attention_mask = prompt_attention_mask.repeat(num_videos_per_prompt, 1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = [negative_prompt] * batch_size if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_embeds, negative_prompt_attention_mask = self._get_gemma_prompt_embeds( + prompt=negative_prompt, + device=device, + dtype=dtype, + clean_caption=clean_caption, + max_sequence_length=max_sequence_length, + complex_human_instruction=False, + ) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_videos_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + negative_prompt_attention_mask = negative_prompt_attention_mask.view(bs_embed, -1) + negative_prompt_attention_mask = negative_prompt_attention_mask.repeat(num_videos_per_prompt, 1) + else: + negative_prompt_embeds = None + negative_prompt_attention_mask = None + + if self.text_encoder is not None: + if isinstance(self, SanaLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, prompt_attention_mask, negative_prompt_embeds, negative_prompt_attention_mask + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + image, + height, + width, + callback_on_step_end_tensor_inputs=None, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + prompt_attention_mask=None, + negative_prompt_attention_mask=None, + ): + if height % 32 != 0 or width % 32 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 32 but are {height} and {width}.") + + if image is not None and not isinstance(image, torch.Tensor) and not isinstance(image, PIL.Image.Image): + raise ValueError(f"`image` has to be of type `torch.Tensor` or `PIL.Image.Image` but is {type(image)}") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and prompt_attention_mask is None: + raise ValueError("Must provide `prompt_attention_mask` when specifying `prompt_embeds`.") + + if negative_prompt_embeds is not None and negative_prompt_attention_mask is None: + raise ValueError("Must provide `negative_prompt_attention_mask` when specifying `negative_prompt_embeds`.") + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + if prompt_attention_mask.shape != negative_prompt_attention_mask.shape: + raise ValueError( + "`prompt_attention_mask` and `negative_prompt_attention_mask` must have the same shape when passed directly, but" + f" got: `prompt_attention_mask` {prompt_attention_mask.shape} != `negative_prompt_attention_mask`" + f" {negative_prompt_attention_mask.shape}." + ) + + # Copied from diffusers.pipelines.deepfloyd_if.pipeline_if.IFPipeline._text_preprocessing + def _text_preprocessing(self, text, clean_caption=False): + if clean_caption and not is_bs4_available(): + logger.warning(BACKENDS_MAPPING["bs4"][-1].format("Setting `clean_caption=True`")) + logger.warning("Setting `clean_caption` to False...") + clean_caption = False + + if clean_caption and not is_ftfy_available(): + logger.warning(BACKENDS_MAPPING["ftfy"][-1].format("Setting `clean_caption=True`")) + logger.warning("Setting `clean_caption` to False...") + clean_caption = False + + if not isinstance(text, (tuple, list)): + text = [text] + + def process(text: str): + if clean_caption: + text = self._clean_caption(text) + text = self._clean_caption(text) + else: + text = text.lower().strip() + return text + + return [process(t) for t in text] + + # Copied from diffusers.pipelines.deepfloyd_if.pipeline_if.IFPipeline._clean_caption + def _clean_caption(self, caption): + caption = str(caption) + caption = ul.unquote_plus(caption) + caption = caption.strip().lower() + caption = re.sub("", "person", caption) + # urls: + caption = re.sub( + r"\b((?:https?:(?:\/{1,3}|[a-zA-Z0-9%])|[a-zA-Z0-9.\-]+[.](?:com|co|ru|net|org|edu|gov|it)[\w/-]*\b\/?(?!@)))", # noqa + "", + caption, + ) # regex for urls + caption = re.sub( + r"\b((?:www:(?:\/{1,3}|[a-zA-Z0-9%])|[a-zA-Z0-9.\-]+[.](?:com|co|ru|net|org|edu|gov|it)[\w/-]*\b\/?(?!@)))", # noqa + "", + caption, + ) # regex for urls + # html: + caption = BeautifulSoup(caption, features="html.parser").text + + # @ + caption = re.sub(r"@[\w\d]+\b", "", caption) + + # 31C0—31EF CJK Strokes + # 31F0—31FF Katakana Phonetic Extensions + # 3200—32FF Enclosed CJK Letters and Months + # 3300—33FF CJK Compatibility + # 3400—4DBF CJK Unified Ideographs Extension A + # 4DC0—4DFF Yijing Hexagram Symbols + # 4E00—9FFF CJK Unified Ideographs + caption = re.sub(r"[\u31c0-\u31ef]+", "", caption) + caption = re.sub(r"[\u31f0-\u31ff]+", "", caption) + caption = re.sub(r"[\u3200-\u32ff]+", "", caption) + caption = re.sub(r"[\u3300-\u33ff]+", "", caption) + caption = re.sub(r"[\u3400-\u4dbf]+", "", caption) + caption = re.sub(r"[\u4dc0-\u4dff]+", "", caption) + caption = re.sub(r"[\u4e00-\u9fff]+", "", caption) + ####################################################### + + # все виды тире / all types of dash --> "-" + caption = re.sub( + r"[\u002D\u058A\u05BE\u1400\u1806\u2010-\u2015\u2E17\u2E1A\u2E3A\u2E3B\u2E40\u301C\u3030\u30A0\uFE31\uFE32\uFE58\uFE63\uFF0D]+", # noqa + "-", + caption, + ) + + # кавычки к одному стандарту + caption = re.sub(r"[`´«»“”¨]", '"', caption) + caption = re.sub(r"[‘’]", "'", caption) + + # " + caption = re.sub(r""?", "", caption) + # & + caption = re.sub(r"&", "", caption) + + # ip addresses: + caption = re.sub(r"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}", " ", caption) + + # article ids: + caption = re.sub(r"\d:\d\d\s+$", "", caption) + + # \n + caption = re.sub(r"\\n", " ", caption) + + # "#123" + caption = re.sub(r"#\d{1,3}\b", "", caption) + # "#12345.." + caption = re.sub(r"#\d{5,}\b", "", caption) + # "123456.." + caption = re.sub(r"\b\d{6,}\b", "", caption) + # filenames: + caption = re.sub(r"[\S]+\.(?:png|jpg|jpeg|bmp|webp|eps|pdf|apk|mp4)", "", caption) + + # + caption = re.sub(r"[\"\']{2,}", r'"', caption) # """AUSVERKAUFT""" + caption = re.sub(r"[\.]{2,}", r" ", caption) # """AUSVERKAUFT""" + + caption = re.sub(self.bad_punct_regex, r" ", caption) # ***AUSVERKAUFT***, #AUSVERKAUFT + caption = re.sub(r"\s+\.\s+", r" ", caption) # " . " + + # this-is-my-cute-cat / this_is_my_cute_cat + regex2 = re.compile(r"(?:\-|\_)") + if len(re.findall(regex2, caption)) > 3: + caption = re.sub(regex2, " ", caption) + + caption = ftfy.fix_text(caption) + caption = html.unescape(html.unescape(caption)) + + caption = re.sub(r"\b[a-zA-Z]{1,3}\d{3,15}\b", "", caption) # jc6640 + caption = re.sub(r"\b[a-zA-Z]+\d+[a-zA-Z]+\b", "", caption) # jc6640vc + caption = re.sub(r"\b\d+[a-zA-Z]+\d+\b", "", caption) # 6640vc231 + + caption = re.sub(r"(worldwide\s+)?(free\s+)?shipping", "", caption) + caption = re.sub(r"(free\s)?download(\sfree)?", "", caption) + caption = re.sub(r"\bclick\b\s(?:for|on)\s\w+", "", caption) + caption = re.sub(r"\b(?:png|jpg|jpeg|bmp|webp|eps|pdf|apk|mp4)(\simage[s]?)?", "", caption) + caption = re.sub(r"\bpage\s+\d+\b", "", caption) + + caption = re.sub(r"\b\d*[a-zA-Z]+\d+[a-zA-Z]+\d+[a-zA-Z\d]*\b", r" ", caption) # j2d1a2a... + + caption = re.sub(r"\b\d+\.?\d*[xх×]\d+\.?\d*\b", "", caption) + + caption = re.sub(r"\b\s+\:\s+", r": ", caption) + caption = re.sub(r"(\D[,\./])\b", r"\1 ", caption) + caption = re.sub(r"\s+", " ", caption) + + caption.strip() + + caption = re.sub(r"^[\"\']([\w\W]+)[\"\']$", r"\1", caption) + caption = re.sub(r"^[\'\_,\-\:;]", r"", caption) + caption = re.sub(r"[\'\_,\-\:\-\+]$", r"", caption) + caption = re.sub(r"^\.\S+$", "", caption) + + return caption.strip() + + def prepare_latents( + self, + image: PipelineImageInput, + batch_size: int, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 81, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + shape = ( + batch_size, + num_channels_latents, + num_latent_frames, + int(height) // self.vae_scale_factor_spatial, + int(width) // self.vae_scale_factor_spatial, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device=device, dtype=dtype) + + image = image.unsqueeze(2) # [B, C, 1, H, W] + image = image.to(device=device, dtype=self.vae.dtype) + + if isinstance(generator, list): + image_latents = [retrieve_latents(self.vae.encode(image), sample_mode="argmax") for _ in generator] + image_latents = torch.cat(image_latents) + else: + image_latents = retrieve_latents(self.vae.encode(image), sample_mode="argmax") + image_latents = image_latents.repeat(batch_size, 1, 1, 1, 1) + + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, -1, 1, 1, 1) + .to(image_latents.device, image_latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, -1, 1, 1, 1).to( + image_latents.device, image_latents.dtype + ) + image_latents = (image_latents - latents_mean) * latents_std + + latents[:, :, 0:1] = image_latents.to(dtype) + + return latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1.0 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image: PipelineImageInput, + prompt: Union[str, List[str]] = None, + negative_prompt: str = "", + num_inference_steps: int = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + guidance_scale: float = 6.0, + num_videos_per_prompt: Optional[int] = 1, + height: int = 480, + width: int = 832, + frames: int = 81, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + prompt_attention_mask: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_attention_mask: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + clean_caption: bool = False, + use_resolution_binning: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 300, + complex_human_instruction: List[str] = [ + "Given a user prompt, generate an 'Enhanced prompt' that provides detailed visual descriptions suitable for video generation. Evaluate the level of detail in the user prompt:", + "- If the prompt is simple, focus on adding specifics about colors, shapes, sizes, textures, motion, and temporal relationships to create vivid and dynamic scenes.", + "- If the prompt is already detailed, refine and enhance the existing details slightly without overcomplicating.", + "Here are examples of how to transform or refine prompts:", + "- User Prompt: A cat sleeping -> Enhanced: A small, fluffy white cat slowly settling into a curled position, peacefully falling asleep on a warm sunny windowsill, with gentle sunlight filtering through surrounding pots of blooming red flowers.", + "- User Prompt: A busy city street -> Enhanced: A bustling city street scene at dusk, featuring glowing street lamps gradually lighting up, a diverse crowd of people in colorful clothing walking past, and a double-decker bus smoothly passing by towering glass skyscrapers.", + "Please generate only the enhanced description for the prompt below and avoid including any additional commentary or evaluations:", + "User Prompt: ", + ], + ) -> Union[SanaVideoPipelineOutput, Tuple]: + """ + Function invoked when calling the pipeline for generation. + + Args: + image (`PipelineImageInput`): + The input image to condition the video generation on. The first frame of the generated video will be + conditioned on this image. + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the video generation. If not defined, one has to pass `prompt_embeds`. + instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the video generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality video at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 4.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate videos that are closely linked to + the text `prompt`, usually at the expense of lower video quality. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of videos to generate per prompt. + height (`int`, *optional*, defaults to 480): + The height in pixels of the generated video. + width (`int`, *optional*, defaults to 832): + The width in pixels of the generated video. + frames (`int`, *optional*, defaults to 81): + The number of frames in the generated video. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for video + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + prompt_attention_mask (`torch.Tensor`, *optional*): Pre-generated attention mask for text embeddings. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. For PixArt-Sigma this negative prompt should be "". If not + provided, negative_prompt_embeds will be generated from `negative_prompt` input argument. + negative_prompt_attention_mask (`torch.Tensor`, *optional*): + Pre-generated attention mask for negative text embeddings. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated video. Choose between mp4 or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`SanaVideoPipelineOutput`] instead of a plain tuple. + attention_kwargs: + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clean_caption (`bool`, *optional*, defaults to `True`): + Whether or not to clean the caption before creating embeddings. Requires `beautifulsoup4` and `ftfy` to + be installed. If the dependencies are not installed, the embeddings will be created from the raw + prompt. + use_resolution_binning (`bool` defaults to `True`): + If set to `True`, the requested height and width are first mapped to the closest resolutions using + `ASPECT_RATIO_480_BIN` or `ASPECT_RATIO_720_BIN`. After the produced latents are decoded into videos, + they are resized back to the requested resolution. Useful for generating non-square videos. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int` defaults to `300`): + Maximum sequence length to use with the `prompt`. + complex_human_instruction (`List[str]`, *optional*): + Instructions for complex human attention: + https://github.com/NVlabs/Sana/blob/main/configs/sana_app_config/Sana_1600M_app.yaml#L55. + + Examples: + + Returns: + [`~pipelines.sana_video.pipeline_output.SanaVideoPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.sana_video.pipeline_output.SanaVideoPipelineOutput`] is + returned, otherwise a `tuple` is returned where the first element is a list with the generated videos + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + if use_resolution_binning: + if self.transformer.config.sample_size == 30: + aspect_ratio_bin = ASPECT_RATIO_480_BIN + elif self.transformer.config.sample_size == 22: + aspect_ratio_bin = ASPECT_RATIO_720_BIN + else: + raise ValueError("Invalid sample size") + orig_height, orig_width = height, width + height, width = self.video_processor.classify_height_width_bin(height, width, ratios=aspect_ratio_bin) + + self.check_inputs( + prompt, + image, + height, + width, + callback_on_step_end_tensor_inputs, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + prompt_attention_mask, + negative_prompt_attention_mask, + ) + + self._guidance_scale = guidance_scale + self._attention_kwargs = attention_kwargs + self._interrupt = False + + # 2. Default height and width to transformer + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + lora_scale = self.attention_kwargs.get("scale", None) if self.attention_kwargs is not None else None + + # 3. Encode input prompt + ( + prompt_embeds, + prompt_attention_mask, + negative_prompt_embeds, + negative_prompt_attention_mask, + ) = self.encode_prompt( + prompt, + self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + device=device, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + prompt_attention_mask=prompt_attention_mask, + negative_prompt_attention_mask=negative_prompt_attention_mask, + clean_caption=clean_caption, + max_sequence_length=max_sequence_length, + complex_human_instruction=complex_human_instruction, + lora_scale=lora_scale, + ) + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + prompt_attention_mask = torch.cat([negative_prompt_attention_mask, prompt_attention_mask], dim=0) + + # 4. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + + # 5. Prepare latents. + latent_channels = self.transformer.config.in_channels + image = self.video_processor.preprocess(image, height=height, width=width).to(device, dtype=torch.float32) + + latents = self.prepare_latents( + image, + batch_size * num_videos_per_prompt, + latent_channels, + height, + width, + frames, + torch.float32, + device, + generator, + latents, + ) + + conditioning_mask = latents.new_zeros( + batch_size, + 1, + latents.shape[2] // self.transformer_temporal_patch_size, + latents.shape[3] // self.transformer_spatial_patch_size, + latents.shape[4] // self.transformer_spatial_patch_size, + ) + conditioning_mask[:, :, 0] = 1.0 + if self.do_classifier_free_guidance: + conditioning_mask = torch.cat([conditioning_mask, conditioning_mask]) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7. Denoising loop + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + self._num_timesteps = len(timesteps) + + transformer_dtype = self.transformer.dtype + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + + # broadcast to batch dimension in a way that's compatible with ONNX/Core ML + timestep = t.expand(conditioning_mask.shape) + timestep = timestep * (1 - conditioning_mask) + + # predict noise model_output + noise_pred = self.transformer( + latent_model_input.to(dtype=transformer_dtype), + encoder_hidden_states=prompt_embeds.to(dtype=transformer_dtype), + encoder_attention_mask=prompt_attention_mask, + timestep=timestep, + return_dict=False, + attention_kwargs=self.attention_kwargs, + )[0] + noise_pred = noise_pred.float() + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + timestep, _ = timestep.chunk(2) + + # learned sigma + if self.transformer.config.out_channels // 2 == latent_channels: + noise_pred = noise_pred.chunk(2, dim=1)[0] + + noise_pred = noise_pred[:, :, 1:] + noise_latents = latents[:, :, 1:] + pred_latents = self.scheduler.step( + noise_pred, t, noise_latents, **extra_step_kwargs, return_dict=False + )[0] + + latents = torch.cat([latents[:, :, :1], pred_latents], dim=2) + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + if output_type == "latent": + video = latents + else: + latents = latents.to(self.vae.dtype) + torch_accelerator_module = getattr(torch, get_device(), torch.cuda) + oom_error = ( + torch.OutOfMemoryError + if is_torch_version(">=", "2.5.0") + else torch_accelerator_module.OutOfMemoryError + ) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + try: + video = self.vae.decode(latents, return_dict=False)[0] + except oom_error as e: + warnings.warn( + f"{e}. \n" + f"Try to use VAE tiling for large images. For example: \n" + f"pipe.vae.enable_tiling(tile_sample_min_width=512, tile_sample_min_height=512)" + ) + + if use_resolution_binning: + video = self.video_processor.resize_and_crop_tensor(video, orig_width, orig_height) + + video = self.video_processor.postprocess_video(video, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return SanaVideoPipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..70f5b1a547c4b90e28109843ae3be2fca2e98c88 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/__init__.py @@ -0,0 +1,49 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_output"] = ["SemanticStableDiffusionPipelineOutput"] + _import_structure["pipeline_semantic_stable_diffusion"] = ["SemanticStableDiffusionPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_semantic_stable_diffusion import SemanticStableDiffusionPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..34991299398115f439537b77e1f1fc8a83e0d431 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/pipeline_output.py @@ -0,0 +1,25 @@ +from dataclasses import dataclass +from typing import List, Optional, Union + +import numpy as np +import PIL.Image + +from ...utils import BaseOutput + + +@dataclass +class SemanticStableDiffusionPipelineOutput(BaseOutput): + """ + Output class for Stable Diffusion pipelines. + + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or NumPy array of shape `(batch_size, height, width, + num_channels)`. + nsfw_content_detected (`List[bool]`) + List indicating whether the corresponding generated image contains “not-safe-for-work” (nsfw) content or + `None` if safety checking could not be performed. + """ + + images: Union[List[PIL.Image.Image], np.ndarray] + nsfw_content_detected: Optional[List[bool]] diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/pipeline_semantic_stable_diffusion.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/pipeline_semantic_stable_diffusion.py new file mode 100644 index 0000000000000000000000000000000000000000..49b09e205cc52f7f50b489f3def0bdcbcd5a4432 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/semantic_stable_diffusion/pipeline_semantic_stable_diffusion.py @@ -0,0 +1,733 @@ +import inspect +from itertools import repeat +from typing import Callable, List, Optional, Union + +import torch +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer + +from ...image_processor import VaeImageProcessor +from ...models import AutoencoderKL, UNet2DConditionModel +from ...pipelines.stable_diffusion.safety_checker import StableDiffusionSafetyChecker +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import deprecate, is_torch_xla_available, logging +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from .pipeline_output import SemanticStableDiffusionPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +class SemanticStableDiffusionPipeline(DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin): + _last_supported_version = "0.33.1" + r""" + Pipeline for text-to-image generation using Stable Diffusion with latent editing. + + This model inherits from [`DiffusionPipeline`] and builds on the [`StableDiffusionPipeline`]. Check the superclass + documentation for the generic methods implemented for all pipelines (downloading, saving, running on a particular + device, etc.). + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`Q16SafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion_k_diffusion.pipeline_stable_diffusion_k_diffusion.StableDiffusionKDiffusionPipeline.check_inputs + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]], + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: int = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + editing_prompt: Optional[Union[str, List[str]]] = None, + editing_prompt_embeddings: Optional[torch.Tensor] = None, + reverse_editing_direction: Optional[Union[bool, List[bool]]] = False, + edit_guidance_scale: Optional[Union[float, List[float]]] = 5, + edit_warmup_steps: Optional[Union[int, List[int]]] = 10, + edit_cooldown_steps: Optional[Union[int, List[int]]] = None, + edit_threshold: Optional[Union[float, List[float]]] = 0.9, + edit_momentum_scale: Optional[float] = 0.1, + edit_mom_beta: Optional[float] = 0.4, + edit_weights: Optional[List[float]] = None, + sem_guidance: Optional[List[torch.Tensor]] = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide image generation. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + editing_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to use for semantic guidance. Semantic guidance is disabled by setting + `editing_prompt = None`. Guidance direction of prompt should be specified via + `reverse_editing_direction`. + editing_prompt_embeddings (`torch.Tensor`, *optional*): + Pre-computed embeddings to use for semantic guidance. Guidance direction of embedding should be + specified via `reverse_editing_direction`. + reverse_editing_direction (`bool` or `List[bool]`, *optional*, defaults to `False`): + Whether the corresponding prompt in `editing_prompt` should be increased or decreased. + edit_guidance_scale (`float` or `List[float]`, *optional*, defaults to 5): + Guidance scale for semantic guidance. If provided as a list, values should correspond to + `editing_prompt`. + edit_warmup_steps (`float` or `List[float]`, *optional*, defaults to 10): + Number of diffusion steps (for each prompt) for which semantic guidance is not applied. Momentum is + calculated for those steps and applied once all warmup periods are over. + edit_cooldown_steps (`float` or `List[float]`, *optional*, defaults to `None`): + Number of diffusion steps (for each prompt) after which semantic guidance is longer applied. + edit_threshold (`float` or `List[float]`, *optional*, defaults to 0.9): + Threshold of semantic guidance. + edit_momentum_scale (`float`, *optional*, defaults to 0.1): + Scale of the momentum to be added to the semantic guidance at each diffusion step. If set to 0.0, + momentum is disabled. Momentum is already built up during warmup (for diffusion steps smaller than + `sld_warmup_steps`). Momentum is only added to latent guidance once all warmup periods are finished. + edit_mom_beta (`float`, *optional*, defaults to 0.4): + Defines how semantic guidance momentum builds up. `edit_mom_beta` indicates how much of the previous + momentum is kept. Momentum is already built up during warmup (for diffusion steps smaller than + `edit_warmup_steps`). + edit_weights (`List[float]`, *optional*, defaults to `None`): + Indicates how much each individual concept should influence the overall guidance. If no weights are + provided all concepts are applied equally. + sem_guidance (`List[torch.Tensor]`, *optional*): + List of pre-generated guidance vectors to be applied at generation. Length of the list has to + correspond to `num_inference_steps`. + + Examples: + + ```py + >>> import torch + >>> from diffusers import SemanticStableDiffusionPipeline + + >>> pipe = SemanticStableDiffusionPipeline.from_pretrained( + ... "stable-diffusion-v1-5/stable-diffusion-v1-5", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> out = pipe( + ... prompt="a photo of the face of a woman", + ... num_images_per_prompt=1, + ... guidance_scale=7, + ... editing_prompt=[ + ... "smiling, smile", # Concepts to apply + ... "glasses, wearing glasses", + ... "curls, wavy hair, curly hair", + ... "beard, full beard, mustache", + ... ], + ... reverse_editing_direction=[ + ... False, + ... False, + ... False, + ... False, + ... ], # Direction of guidance i.e. increase all concepts + ... edit_warmup_steps=[10, 10, 10, 10], # Warmup period for each concept + ... edit_guidance_scale=[4, 5, 5, 5.4], # Guidance scale for each concept + ... edit_threshold=[ + ... 0.99, + ... 0.975, + ... 0.925, + ... 0.96, + ... ], # Threshold for each concept. Threshold equals the percentile of the latent space that will be discarded. I.e. threshold=0.99 uses 1% of the latent dimensions + ... edit_momentum_scale=0.3, # Momentum scale that will be added to the latent guidance + ... edit_mom_beta=0.6, # Momentum beta + ... edit_weights=[1, 1, 1, 1, 1], # Weights of the individual concepts against each other + ... ) + >>> image = out.images[0] + ``` + + Returns: + [`~pipelines.semantic_stable_diffusion.SemanticStableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, + [`~pipelines.semantic_stable_diffusion.SemanticStableDiffusionPipelineOutput`] is returned, otherwise a + `tuple` is returned where the first element is a list with the generated images and the second element + is a list of `bool`s indicating whether the corresponding generated image contains "not-safe-for-work" + (nsfw) content. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs(prompt, height, width, callback_steps) + + # 2. Define call parameters + batch_size = 1 if isinstance(prompt, str) else len(prompt) + device = self._execution_device + + if editing_prompt: + enable_edit_guidance = True + if isinstance(editing_prompt, str): + editing_prompt = [editing_prompt] + enabled_editing_prompts = len(editing_prompt) + elif editing_prompt_embeddings is not None: + enable_edit_guidance = True + enabled_editing_prompts = editing_prompt_embeddings.shape[0] + else: + enabled_editing_prompts = 0 + enable_edit_guidance = False + + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + + if text_input_ids.shape[-1] > self.tokenizer.model_max_length: + removed_text = self.tokenizer.batch_decode(text_input_ids[:, self.tokenizer.model_max_length :]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + text_input_ids = text_input_ids[:, : self.tokenizer.model_max_length] + text_embeddings = self.text_encoder(text_input_ids.to(device))[0] + + # duplicate text embeddings for each generation per prompt, using mps friendly method + bs_embed, seq_len, _ = text_embeddings.shape + text_embeddings = text_embeddings.repeat(1, num_images_per_prompt, 1) + text_embeddings = text_embeddings.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if enable_edit_guidance: + # get safety text embeddings + if editing_prompt_embeddings is None: + edit_concepts_input = self.tokenizer( + [x for item in editing_prompt for x in repeat(item, batch_size)], + padding="max_length", + max_length=self.tokenizer.model_max_length, + return_tensors="pt", + ) + + edit_concepts_input_ids = edit_concepts_input.input_ids + + if edit_concepts_input_ids.shape[-1] > self.tokenizer.model_max_length: + removed_text = self.tokenizer.batch_decode( + edit_concepts_input_ids[:, self.tokenizer.model_max_length :] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + edit_concepts_input_ids = edit_concepts_input_ids[:, : self.tokenizer.model_max_length] + edit_concepts = self.text_encoder(edit_concepts_input_ids.to(device))[0] + else: + edit_concepts = editing_prompt_embeddings.to(device).repeat(batch_size, 1, 1) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + bs_embed_edit, seq_len_edit, _ = edit_concepts.shape + edit_concepts = edit_concepts.repeat(1, num_images_per_prompt, 1) + edit_concepts = edit_concepts.view(bs_embed_edit * num_images_per_prompt, seq_len_edit, -1) + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + # get unconditional embeddings for classifier free guidance + + if do_classifier_free_guidance: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + max_length = text_input_ids.shape[-1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + uncond_embeddings = self.text_encoder(uncond_input.input_ids.to(device))[0] + + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = uncond_embeddings.shape[1] + uncond_embeddings = uncond_embeddings.repeat(1, num_images_per_prompt, 1) + uncond_embeddings = uncond_embeddings.view(batch_size * num_images_per_prompt, seq_len, -1) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if enable_edit_guidance: + text_embeddings = torch.cat([uncond_embeddings, text_embeddings, edit_concepts]) + else: + text_embeddings = torch.cat([uncond_embeddings, text_embeddings]) + # get the initial random noise unless the user supplied it + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + text_embeddings.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # Initialize edit_momentum to None + edit_momentum = None + + self.uncond_estimates = None + self.text_estimates = None + self.edit_estimates = None + self.sem_guidance = None + + for i, t in enumerate(self.progress_bar(timesteps)): + # expand the latents if we are doing classifier free guidance + latent_model_input = ( + torch.cat([latents] * (2 + enabled_editing_prompts)) if do_classifier_free_guidance else latents + ) + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet(latent_model_input, t, encoder_hidden_states=text_embeddings).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_out = noise_pred.chunk(2 + enabled_editing_prompts) # [b,4, 64, 64] + noise_pred_uncond, noise_pred_text = noise_pred_out[0], noise_pred_out[1] + noise_pred_edit_concepts = noise_pred_out[2:] + + # default text guidance + noise_guidance = guidance_scale * (noise_pred_text - noise_pred_uncond) + # noise_guidance = (noise_pred_text - noise_pred_edit_concepts[0]) + + if self.uncond_estimates is None: + self.uncond_estimates = torch.zeros((num_inference_steps + 1, *noise_pred_uncond.shape)) + self.uncond_estimates[i] = noise_pred_uncond.detach().cpu() + + if self.text_estimates is None: + self.text_estimates = torch.zeros((num_inference_steps + 1, *noise_pred_text.shape)) + self.text_estimates[i] = noise_pred_text.detach().cpu() + + if self.edit_estimates is None and enable_edit_guidance: + self.edit_estimates = torch.zeros( + (num_inference_steps + 1, len(noise_pred_edit_concepts), *noise_pred_edit_concepts[0].shape) + ) + + if self.sem_guidance is None: + self.sem_guidance = torch.zeros((num_inference_steps + 1, *noise_pred_text.shape)) + + if edit_momentum is None: + edit_momentum = torch.zeros_like(noise_guidance) + + if enable_edit_guidance: + concept_weights = torch.zeros( + (len(noise_pred_edit_concepts), noise_guidance.shape[0]), + device=device, + dtype=noise_guidance.dtype, + ) + noise_guidance_edit = torch.zeros( + (len(noise_pred_edit_concepts), *noise_guidance.shape), + device=device, + dtype=noise_guidance.dtype, + ) + # noise_guidance_edit = torch.zeros_like(noise_guidance) + warmup_inds = [] + for c, noise_pred_edit_concept in enumerate(noise_pred_edit_concepts): + self.edit_estimates[i, c] = noise_pred_edit_concept + if isinstance(edit_guidance_scale, list): + edit_guidance_scale_c = edit_guidance_scale[c] + else: + edit_guidance_scale_c = edit_guidance_scale + + if isinstance(edit_threshold, list): + edit_threshold_c = edit_threshold[c] + else: + edit_threshold_c = edit_threshold + if isinstance(reverse_editing_direction, list): + reverse_editing_direction_c = reverse_editing_direction[c] + else: + reverse_editing_direction_c = reverse_editing_direction + if edit_weights: + edit_weight_c = edit_weights[c] + else: + edit_weight_c = 1.0 + if isinstance(edit_warmup_steps, list): + edit_warmup_steps_c = edit_warmup_steps[c] + else: + edit_warmup_steps_c = edit_warmup_steps + + if isinstance(edit_cooldown_steps, list): + edit_cooldown_steps_c = edit_cooldown_steps[c] + elif edit_cooldown_steps is None: + edit_cooldown_steps_c = i + 1 + else: + edit_cooldown_steps_c = edit_cooldown_steps + if i >= edit_warmup_steps_c: + warmup_inds.append(c) + if i >= edit_cooldown_steps_c: + noise_guidance_edit[c, :, :, :, :] = torch.zeros_like(noise_pred_edit_concept) + continue + + noise_guidance_edit_tmp = noise_pred_edit_concept - noise_pred_uncond + # tmp_weights = (noise_pred_text - noise_pred_edit_concept).sum(dim=(1, 2, 3)) + tmp_weights = (noise_guidance - noise_pred_edit_concept).sum(dim=(1, 2, 3)) + + tmp_weights = torch.full_like(tmp_weights, edit_weight_c) # * (1 / enabled_editing_prompts) + if reverse_editing_direction_c: + noise_guidance_edit_tmp = noise_guidance_edit_tmp * -1 + concept_weights[c, :] = tmp_weights + + noise_guidance_edit_tmp = noise_guidance_edit_tmp * edit_guidance_scale_c + + # torch.quantile function expects float32 + if noise_guidance_edit_tmp.dtype == torch.float32: + tmp = torch.quantile( + torch.abs(noise_guidance_edit_tmp).flatten(start_dim=2), + edit_threshold_c, + dim=2, + keepdim=False, + ) + else: + tmp = torch.quantile( + torch.abs(noise_guidance_edit_tmp).flatten(start_dim=2).to(torch.float32), + edit_threshold_c, + dim=2, + keepdim=False, + ).to(noise_guidance_edit_tmp.dtype) + + noise_guidance_edit_tmp = torch.where( + torch.abs(noise_guidance_edit_tmp) >= tmp[:, :, None, None], + noise_guidance_edit_tmp, + torch.zeros_like(noise_guidance_edit_tmp), + ) + noise_guidance_edit[c, :, :, :, :] = noise_guidance_edit_tmp + + # noise_guidance_edit = noise_guidance_edit + noise_guidance_edit_tmp + + warmup_inds = torch.tensor(warmup_inds).to(device) + if len(noise_pred_edit_concepts) > warmup_inds.shape[0] > 0: + concept_weights = concept_weights.to("cpu") # Offload to cpu + noise_guidance_edit = noise_guidance_edit.to("cpu") + + concept_weights_tmp = torch.index_select(concept_weights.to(device), 0, warmup_inds) + concept_weights_tmp = torch.where( + concept_weights_tmp < 0, torch.zeros_like(concept_weights_tmp), concept_weights_tmp + ) + concept_weights_tmp = concept_weights_tmp / concept_weights_tmp.sum(dim=0) + # concept_weights_tmp = torch.nan_to_num(concept_weights_tmp) + + noise_guidance_edit_tmp = torch.index_select(noise_guidance_edit.to(device), 0, warmup_inds) + noise_guidance_edit_tmp = torch.einsum( + "cb,cbijk->bijk", concept_weights_tmp, noise_guidance_edit_tmp + ) + noise_guidance = noise_guidance + noise_guidance_edit_tmp + + self.sem_guidance[i] = noise_guidance_edit_tmp.detach().cpu() + + del noise_guidance_edit_tmp + del concept_weights_tmp + concept_weights = concept_weights.to(device) + noise_guidance_edit = noise_guidance_edit.to(device) + + concept_weights = torch.where( + concept_weights < 0, torch.zeros_like(concept_weights), concept_weights + ) + + concept_weights = torch.nan_to_num(concept_weights) + + noise_guidance_edit = torch.einsum("cb,cbijk->bijk", concept_weights, noise_guidance_edit) + noise_guidance_edit = noise_guidance_edit.to(edit_momentum.device) + + noise_guidance_edit = noise_guidance_edit + edit_momentum_scale * edit_momentum + + edit_momentum = edit_mom_beta * edit_momentum + (1 - edit_mom_beta) * noise_guidance_edit + + if warmup_inds.shape[0] == len(noise_pred_edit_concepts): + noise_guidance = noise_guidance + noise_guidance_edit + self.sem_guidance[i] = noise_guidance_edit.detach().cpu() + + if sem_guidance is not None: + edit_guidance = sem_guidance[i].to(device) + noise_guidance = noise_guidance + edit_guidance + + noise_pred = noise_pred_uncond + noise_guidance + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # 8. Post-processing + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, text_embeddings.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + if not return_dict: + return (image, has_nsfw_concept) + + return SemanticStableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..4ed563c4a51f6e627c06711b60fe3a0709ff22f7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/__init__.py @@ -0,0 +1,71 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["camera"] = ["create_pan_cameras"] + _import_structure["pipeline_shap_e"] = ["ShapEPipeline"] + _import_structure["pipeline_shap_e_img2img"] = ["ShapEImg2ImgPipeline"] + _import_structure["renderer"] = [ + "BoundingBoxVolume", + "ImportanceRaySampler", + "MLPNeRFModelOutput", + "MLPNeRSTFModel", + "ShapEParamsProjModel", + "ShapERenderer", + "StratifiedRaySampler", + "VoidNeRFModel", + ] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .camera import create_pan_cameras + from .pipeline_shap_e import ShapEPipeline + from .pipeline_shap_e_img2img import ShapEImg2ImgPipeline + from .renderer import ( + BoundingBoxVolume, + ImportanceRaySampler, + MLPNeRFModelOutput, + MLPNeRSTFModel, + ShapEParamsProjModel, + ShapERenderer, + StratifiedRaySampler, + VoidNeRFModel, + ) + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/camera.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/camera.py new file mode 100644 index 0000000000000000000000000000000000000000..31e1759d6154df151bbe13f61c67785ab5078a12 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/camera.py @@ -0,0 +1,147 @@ +# Copyright 2025 Open AI and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import Tuple + +import numpy as np +import torch + + +@dataclass +class DifferentiableProjectiveCamera: + """ + Implements a batch, differentiable, standard pinhole camera + """ + + origin: torch.Tensor # [batch_size x 3] + x: torch.Tensor # [batch_size x 3] + y: torch.Tensor # [batch_size x 3] + z: torch.Tensor # [batch_size x 3] + width: int + height: int + x_fov: float + y_fov: float + shape: Tuple[int] + + def __post_init__(self): + assert self.x.shape[0] == self.y.shape[0] == self.z.shape[0] == self.origin.shape[0] + assert self.x.shape[1] == self.y.shape[1] == self.z.shape[1] == self.origin.shape[1] == 3 + assert len(self.x.shape) == len(self.y.shape) == len(self.z.shape) == len(self.origin.shape) == 2 + + def resolution(self): + return torch.from_numpy(np.array([self.width, self.height], dtype=np.float32)) + + def fov(self): + return torch.from_numpy(np.array([self.x_fov, self.y_fov], dtype=np.float32)) + + def get_image_coords(self) -> torch.Tensor: + """ + :return: coords of shape (width * height, 2) + """ + pixel_indices = torch.arange(self.height * self.width) + coords = torch.stack( + [ + pixel_indices % self.width, + torch.div(pixel_indices, self.width, rounding_mode="trunc"), + ], + axis=1, + ) + return coords + + @property + def camera_rays(self): + batch_size, *inner_shape = self.shape + inner_batch_size = int(np.prod(inner_shape)) + + coords = self.get_image_coords() + coords = torch.broadcast_to(coords.unsqueeze(0), [batch_size * inner_batch_size, *coords.shape]) + rays = self.get_camera_rays(coords) + + rays = rays.view(batch_size, inner_batch_size * self.height * self.width, 2, 3) + + return rays + + def get_camera_rays(self, coords: torch.Tensor) -> torch.Tensor: + batch_size, *shape, n_coords = coords.shape + assert n_coords == 2 + assert batch_size == self.origin.shape[0] + + flat = coords.view(batch_size, -1, 2) + + res = self.resolution() + fov = self.fov() + + fracs = (flat.float() / (res - 1)) * 2 - 1 + fracs = fracs * torch.tan(fov / 2) + + fracs = fracs.view(batch_size, -1, 2) + directions = ( + self.z.view(batch_size, 1, 3) + + self.x.view(batch_size, 1, 3) * fracs[:, :, :1] + + self.y.view(batch_size, 1, 3) * fracs[:, :, 1:] + ) + directions = directions / directions.norm(dim=-1, keepdim=True) + rays = torch.stack( + [ + torch.broadcast_to(self.origin.view(batch_size, 1, 3), [batch_size, directions.shape[1], 3]), + directions, + ], + dim=2, + ) + return rays.view(batch_size, *shape, 2, 3) + + def resize_image(self, width: int, height: int) -> "DifferentiableProjectiveCamera": + """ + Creates a new camera for the resized view assuming the aspect ratio does not change. + """ + assert width * self.height == height * self.width, "The aspect ratio should not change." + return DifferentiableProjectiveCamera( + origin=self.origin, + x=self.x, + y=self.y, + z=self.z, + width=width, + height=height, + x_fov=self.x_fov, + y_fov=self.y_fov, + ) + + +def create_pan_cameras(size: int) -> DifferentiableProjectiveCamera: + origins = [] + xs = [] + ys = [] + zs = [] + for theta in np.linspace(0, 2 * np.pi, num=20): + z = np.array([np.sin(theta), np.cos(theta), -0.5]) + z /= np.sqrt(np.sum(z**2)) + origin = -z * 4 + x = np.array([np.cos(theta), -np.sin(theta), 0.0]) + y = np.cross(z, x) + origins.append(origin) + xs.append(x) + ys.append(y) + zs.append(z) + return DifferentiableProjectiveCamera( + origin=torch.from_numpy(np.stack(origins, axis=0)).float(), + x=torch.from_numpy(np.stack(xs, axis=0)).float(), + y=torch.from_numpy(np.stack(ys, axis=0)).float(), + z=torch.from_numpy(np.stack(zs, axis=0)).float(), + width=size, + height=size, + x_fov=0.7, + y_fov=0.7, + shape=(1, len(xs)), + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/pipeline_shap_e.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/pipeline_shap_e.py new file mode 100644 index 0000000000000000000000000000000000000000..49ddfd1196bf693b5115c971fa7b60f1342c9d71 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/pipeline_shap_e.py @@ -0,0 +1,346 @@ +# Copyright 2025 Open AI and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPTextModelWithProjection, CLIPTokenizer + +from ...models import PriorTransformer +from ...schedulers import HeunDiscreteScheduler +from ...utils import ( + BaseOutput, + is_torch_xla_available, + logging, + replace_example_docstring, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline +from .renderer import ShapERenderer + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import DiffusionPipeline + >>> from diffusers.utils import export_to_gif + + >>> device = torch.device("cuda" if torch.cuda.is_available() else "cpu") + + >>> repo = "openai/shap-e" + >>> pipe = DiffusionPipeline.from_pretrained(repo, torch_dtype=torch.float16) + >>> pipe = pipe.to(device) + + >>> guidance_scale = 15.0 + >>> prompt = "a shark" + + >>> images = pipe( + ... prompt, + ... guidance_scale=guidance_scale, + ... num_inference_steps=64, + ... frame_size=256, + ... ).images + + >>> gif_path = export_to_gif(images[0], "shark_3d.gif") + ``` +""" + + +@dataclass +class ShapEPipelineOutput(BaseOutput): + """ + Output class for [`ShapEPipeline`] and [`ShapEImg2ImgPipeline`]. + + Args: + images (`torch.Tensor`) + A list of images for 3D rendering. + """ + + images: Union[List[List[PIL.Image.Image]], List[List[np.ndarray]]] + + +class ShapEPipeline(DiffusionPipeline): + """ + Pipeline for generating latent representation of a 3D asset and rendering with the NeRF method. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + prior ([`PriorTransformer`]): + The canonical unCLIP prior to approximate the image embedding from the text embedding. + text_encoder ([`~transformers.CLIPTextModelWithProjection`]): + Frozen text-encoder. + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + scheduler ([`HeunDiscreteScheduler`]): + A scheduler to be used in combination with the `prior` model to generate image embedding. + shap_e_renderer ([`ShapERenderer`]): + Shap-E renderer projects the generated latents into parameters of a MLP to create 3D objects with the NeRF + rendering method. + """ + + model_cpu_offload_seq = "text_encoder->prior" + _exclude_from_cpu_offload = ["shap_e_renderer"] + + def __init__( + self, + prior: PriorTransformer, + text_encoder: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + scheduler: HeunDiscreteScheduler, + shap_e_renderer: ShapERenderer, + ): + super().__init__() + + self.register_modules( + prior=prior, + text_encoder=text_encoder, + tokenizer=tokenizer, + scheduler=scheduler, + shap_e_renderer=shap_e_renderer, + ) + + # Copied from diffusers.pipelines.unclip.pipeline_unclip.UnCLIPPipeline.prepare_latents + def prepare_latents(self, shape, dtype, device, generator, latents, scheduler): + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + ): + len(prompt) if isinstance(prompt, list) else 1 + + # YiYi Notes: set pad_token_id to be 0, not sure why I can't set in the config file + self.tokenizer.pad_token_id = 0 + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer.batch_decode(untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + text_encoder_output = self.text_encoder(text_input_ids.to(device)) + prompt_embeds = text_encoder_output.text_embeds + + prompt_embeds = prompt_embeds.repeat_interleave(num_images_per_prompt, dim=0) + # in Shap-E it normalize the prompt_embeds and then later rescale it + prompt_embeds = prompt_embeds / torch.linalg.norm(prompt_embeds, dim=-1, keepdim=True) + + if do_classifier_free_guidance: + negative_prompt_embeds = torch.zeros_like(prompt_embeds) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # Rescale the features to have unit variance + prompt_embeds = math.sqrt(prompt_embeds.shape[1]) * prompt_embeds + + return prompt_embeds + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: str, + num_images_per_prompt: int = 1, + num_inference_steps: int = 25, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + guidance_scale: float = 4.0, + frame_size: int = 64, + output_type: Optional[str] = "pil", # pil, np, latent, mesh + return_dict: bool = True, + ): + """ + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + num_inference_steps (`int`, *optional*, defaults to 25): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + guidance_scale (`float`, *optional*, defaults to 4.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + frame_size (`int`, *optional*, default to 64): + The width and height of each image frame of the generated 3D output. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `"pil"` (`PIL.Image.Image`), `"np"` + (`np.array`), `"latent"` (`torch.Tensor`), or mesh ([`MeshDecoderOutput`]). + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.shap_e.pipeline_shap_e.ShapEPipelineOutput`] instead of a plain + tuple. + + Examples: + + Returns: + [`~pipelines.shap_e.pipeline_shap_e.ShapEPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.shap_e.pipeline_shap_e.ShapEPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images. + """ + + if isinstance(prompt, str): + batch_size = 1 + elif isinstance(prompt, list): + batch_size = len(prompt) + else: + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + device = self._execution_device + + batch_size = batch_size * num_images_per_prompt + + do_classifier_free_guidance = guidance_scale > 1.0 + prompt_embeds = self._encode_prompt(prompt, device, num_images_per_prompt, do_classifier_free_guidance) + + # prior + + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + num_embeddings = self.prior.config.num_embeddings + embedding_dim = self.prior.config.embedding_dim + + latents = self.prepare_latents( + (batch_size, num_embeddings * embedding_dim), + prompt_embeds.dtype, + device, + generator, + latents, + self.scheduler, + ) + + # YiYi notes: for testing only to match ldm, we can directly create a latents with desired shape: batch_size, num_embeddings, embedding_dim + latents = latents.reshape(latents.shape[0], num_embeddings, embedding_dim) + + for i, t in enumerate(self.progress_bar(timesteps)): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + scaled_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + noise_pred = self.prior( + scaled_model_input, + timestep=t, + proj_embedding=prompt_embeds, + ).predicted_image_embedding + + # remove the variance + noise_pred, _ = noise_pred.split( + scaled_model_input.shape[2], dim=2 + ) # batch_size, num_embeddings, embedding_dim + + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred - noise_pred_uncond) + + latents = self.scheduler.step( + noise_pred, + timestep=t, + sample=latents, + ).prev_sample + + if XLA_AVAILABLE: + xm.mark_step() + + # Offload all models + self.maybe_free_model_hooks() + + if output_type not in ["np", "pil", "latent", "mesh"]: + raise ValueError( + f"Only the output types `pil`, `np`, `latent` and `mesh` are supported not output_type={output_type}" + ) + + if output_type == "latent": + return ShapEPipelineOutput(images=latents) + + images = [] + if output_type == "mesh": + for i, latent in enumerate(latents): + mesh = self.shap_e_renderer.decode_to_mesh( + latent[None, :], + device, + ) + images.append(mesh) + + else: + # np, pil + for i, latent in enumerate(latents): + image = self.shap_e_renderer.decode_to_image( + latent[None, :], + device, + size=frame_size, + ) + images.append(image) + + images = torch.stack(images) + + images = images.cpu().numpy() + + if output_type == "pil": + images = [self.numpy_to_pil(image) for image in images] + + if not return_dict: + return (images,) + + return ShapEPipelineOutput(images=images) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/pipeline_shap_e_img2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/pipeline_shap_e_img2img.py new file mode 100644 index 0000000000000000000000000000000000000000..55d8b85822c47561caa918eacc9f7c1af5b83302 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/pipeline_shap_e_img2img.py @@ -0,0 +1,333 @@ +# Copyright 2025 Open AI and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPVisionModel + +from ...models import PriorTransformer +from ...schedulers import HeunDiscreteScheduler +from ...utils import ( + BaseOutput, + is_torch_xla_available, + logging, + replace_example_docstring, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline +from .renderer import ShapERenderer + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> from PIL import Image + >>> import torch + >>> from diffusers import DiffusionPipeline + >>> from diffusers.utils import export_to_gif, load_image + + >>> device = torch.device("cuda" if torch.cuda.is_available() else "cpu") + + >>> repo = "openai/shap-e-img2img" + >>> pipe = DiffusionPipeline.from_pretrained(repo, torch_dtype=torch.float16) + >>> pipe = pipe.to(device) + + >>> guidance_scale = 3.0 + >>> image_url = "https://hf.co/datasets/diffusers/docs-images/resolve/main/shap-e/corgi.png" + >>> image = load_image(image_url).convert("RGB") + + >>> images = pipe( + ... image, + ... guidance_scale=guidance_scale, + ... num_inference_steps=64, + ... frame_size=256, + ... ).images + + >>> gif_path = export_to_gif(images[0], "corgi_3d.gif") + ``` +""" + + +@dataclass +class ShapEPipelineOutput(BaseOutput): + """ + Output class for [`ShapEPipeline`] and [`ShapEImg2ImgPipeline`]. + + Args: + images (`torch.Tensor`) + A list of images for 3D rendering. + """ + + images: Union[PIL.Image.Image, np.ndarray] + + +class ShapEImg2ImgPipeline(DiffusionPipeline): + """ + Pipeline for generating latent representation of a 3D asset and rendering with the NeRF method from an image. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + prior ([`PriorTransformer`]): + The canonical unCLIP prior to approximate the image embedding from the text embedding. + image_encoder ([`~transformers.CLIPVisionModel`]): + Frozen image-encoder. + image_processor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to process images. + scheduler ([`HeunDiscreteScheduler`]): + A scheduler to be used in combination with the `prior` model to generate image embedding. + shap_e_renderer ([`ShapERenderer`]): + Shap-E renderer projects the generated latents into parameters of a MLP to create 3D objects with the NeRF + rendering method. + """ + + model_cpu_offload_seq = "image_encoder->prior" + _exclude_from_cpu_offload = ["shap_e_renderer"] + + def __init__( + self, + prior: PriorTransformer, + image_encoder: CLIPVisionModel, + image_processor: CLIPImageProcessor, + scheduler: HeunDiscreteScheduler, + shap_e_renderer: ShapERenderer, + ): + super().__init__() + + self.register_modules( + prior=prior, + image_encoder=image_encoder, + image_processor=image_processor, + scheduler=scheduler, + shap_e_renderer=shap_e_renderer, + ) + + # Copied from diffusers.pipelines.unclip.pipeline_unclip.UnCLIPPipeline.prepare_latents + def prepare_latents(self, shape, dtype, device, generator, latents, scheduler): + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def _encode_image( + self, + image, + device, + num_images_per_prompt, + do_classifier_free_guidance, + ): + if isinstance(image, List) and isinstance(image[0], torch.Tensor): + image = torch.cat(image, axis=0) if image[0].ndim == 4 else torch.stack(image, axis=0) + + if not isinstance(image, torch.Tensor): + image = self.image_processor(image, return_tensors="pt").pixel_values[0].unsqueeze(0) + + image = image.to(dtype=self.image_encoder.dtype, device=device) + + image_embeds = self.image_encoder(image)["last_hidden_state"] + image_embeds = image_embeds[:, 1:, :].contiguous() # batch_size, dim, 256 + + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + + if do_classifier_free_guidance: + negative_image_embeds = torch.zeros_like(image_embeds) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + image_embeds = torch.cat([negative_image_embeds, image_embeds]) + + return image_embeds + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image: Union[PIL.Image.Image, List[PIL.Image.Image]], + num_images_per_prompt: int = 1, + num_inference_steps: int = 25, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + guidance_scale: float = 4.0, + frame_size: int = 64, + output_type: Optional[str] = "pil", # pil, np, latent, mesh + return_dict: bool = True, + ): + """ + The call function to the pipeline for generation. + + Args: + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image` or tensor representing an image batch to be used as the starting point. Can also accept image + latents as image, but if passing latents directly it is not encoded again. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + num_inference_steps (`int`, *optional*, defaults to 25): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + guidance_scale (`float`, *optional*, defaults to 4.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + frame_size (`int`, *optional*, default to 64): + The width and height of each image frame of the generated 3D output. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `"pil"` (`PIL.Image.Image`), `"np"` + (`np.array`), `"latent"` (`torch.Tensor`), or mesh ([`MeshDecoderOutput`]). + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.shap_e.pipeline_shap_e.ShapEPipelineOutput`] instead of a plain + tuple. + + Examples: + + Returns: + [`~pipelines.shap_e.pipeline_shap_e.ShapEPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.shap_e.pipeline_shap_e.ShapEPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images. + """ + + if isinstance(image, PIL.Image.Image): + batch_size = 1 + elif isinstance(image, torch.Tensor): + batch_size = image.shape[0] + elif isinstance(image, list) and isinstance(image[0], (torch.Tensor, PIL.Image.Image)): + batch_size = len(image) + else: + raise ValueError( + f"`image` has to be of type `PIL.Image.Image`, `torch.Tensor`, `List[PIL.Image.Image]` or `List[torch.Tensor]` but is {type(image)}" + ) + + device = self._execution_device + + batch_size = batch_size * num_images_per_prompt + + do_classifier_free_guidance = guidance_scale > 1.0 + image_embeds = self._encode_image(image, device, num_images_per_prompt, do_classifier_free_guidance) + + # prior + + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + num_embeddings = self.prior.config.num_embeddings + embedding_dim = self.prior.config.embedding_dim + if latents is None: + latents = self.prepare_latents( + (batch_size, num_embeddings * embedding_dim), + image_embeds.dtype, + device, + generator, + latents, + self.scheduler, + ) + + # YiYi notes: for testing only to match ldm, we can directly create a latents with desired shape: batch_size, num_embeddings, embedding_dim + latents = latents.reshape(latents.shape[0], num_embeddings, embedding_dim) + + for i, t in enumerate(self.progress_bar(timesteps)): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + scaled_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + noise_pred = self.prior( + scaled_model_input, + timestep=t, + proj_embedding=image_embeds, + ).predicted_image_embedding + + # remove the variance + noise_pred, _ = noise_pred.split( + scaled_model_input.shape[2], dim=2 + ) # batch_size, num_embeddings, embedding_dim + + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred - noise_pred_uncond) + + latents = self.scheduler.step( + noise_pred, + timestep=t, + sample=latents, + ).prev_sample + + if XLA_AVAILABLE: + xm.mark_step() + + if output_type not in ["np", "pil", "latent", "mesh"]: + raise ValueError( + f"Only the output types `pil`, `np`, `latent` and `mesh` are supported not output_type={output_type}" + ) + + # Offload all models + self.maybe_free_model_hooks() + + if output_type == "latent": + return ShapEPipelineOutput(images=latents) + + images = [] + if output_type == "mesh": + for i, latent in enumerate(latents): + mesh = self.shap_e_renderer.decode_to_mesh( + latent[None, :], + device, + ) + images.append(mesh) + + else: + # np, pil + for i, latent in enumerate(latents): + image = self.shap_e_renderer.decode_to_image( + latent[None, :], + device, + size=frame_size, + ) + images.append(image) + + images = torch.stack(images) + + images = images.cpu().numpy() + + if output_type == "pil": + images = [self.numpy_to_pil(image) for image in images] + + if not return_dict: + return (images,) + + return ShapEPipelineOutput(images=images) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/renderer.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/renderer.py new file mode 100644 index 0000000000000000000000000000000000000000..d1d05c89459538d9ae6cef2e26f7cedaea9b3835 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/shap_e/renderer.py @@ -0,0 +1,1050 @@ +# Copyright 2025 Open AI and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import Dict, Optional, Tuple + +import numpy as np +import torch +import torch.nn.functional as F +from torch import nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models import ModelMixin +from ...utils import BaseOutput +from .camera import create_pan_cameras + + +def sample_pmf(pmf: torch.Tensor, n_samples: int) -> torch.Tensor: + r""" + Sample from the given discrete probability distribution with replacement. + + The i-th bin is assumed to have mass pmf[i]. + + Args: + pmf: [batch_size, *shape, n_samples, 1] where (pmf.sum(dim=-2) == 1).all() + n_samples: number of samples + + Return: + indices sampled with replacement + """ + + *shape, support_size, last_dim = pmf.shape + assert last_dim == 1 + + cdf = torch.cumsum(pmf.view(-1, support_size), dim=1) + inds = torch.searchsorted(cdf, torch.rand(cdf.shape[0], n_samples, device=cdf.device)) + + return inds.view(*shape, n_samples, 1).clamp(0, support_size - 1) + + +def posenc_nerf(x: torch.Tensor, min_deg: int = 0, max_deg: int = 15) -> torch.Tensor: + """ + Concatenate x and its positional encodings, following NeRF. + + Reference: https://huggingface.co/papers/2210.04628 + """ + if min_deg == max_deg: + return x + + scales = 2.0 ** torch.arange(min_deg, max_deg, dtype=x.dtype, device=x.device) + *shape, dim = x.shape + xb = (x.reshape(-1, 1, dim) * scales.view(1, -1, 1)).reshape(*shape, -1) + assert xb.shape[-1] == dim * (max_deg - min_deg) + emb = torch.cat([xb, xb + math.pi / 2.0], axis=-1).sin() + return torch.cat([x, emb], dim=-1) + + +def encode_position(position): + return posenc_nerf(position, min_deg=0, max_deg=15) + + +def encode_direction(position, direction=None): + if direction is None: + return torch.zeros_like(posenc_nerf(position, min_deg=0, max_deg=8)) + else: + return posenc_nerf(direction, min_deg=0, max_deg=8) + + +def _sanitize_name(x: str) -> str: + return x.replace(".", "__") + + +def integrate_samples(volume_range, ts, density, channels): + r""" + Function integrating the model output. + + Args: + volume_range: Specifies the integral range [t0, t1] + ts: timesteps + density: torch.Tensor [batch_size, *shape, n_samples, 1] + channels: torch.Tensor [batch_size, *shape, n_samples, n_channels] + returns: + channels: integrated rgb output weights: torch.Tensor [batch_size, *shape, n_samples, 1] (density + *transmittance)[i] weight for each rgb output at [..., i, :]. transmittance: transmittance of this volume + ) + """ + + # 1. Calculate the weights + _, _, dt = volume_range.partition(ts) + ddensity = density * dt + + mass = torch.cumsum(ddensity, dim=-2) + transmittance = torch.exp(-mass[..., -1, :]) + + alphas = 1.0 - torch.exp(-ddensity) + Ts = torch.exp(torch.cat([torch.zeros_like(mass[..., :1, :]), -mass[..., :-1, :]], dim=-2)) + # This is the probability of light hitting and reflecting off of + # something at depth [..., i, :]. + weights = alphas * Ts + + # 2. Integrate channels + channels = torch.sum(channels * weights, dim=-2) + + return channels, weights, transmittance + + +def volume_query_points(volume, grid_size): + indices = torch.arange(grid_size**3, device=volume.bbox_min.device) + zs = indices % grid_size + ys = torch.div(indices, grid_size, rounding_mode="trunc") % grid_size + xs = torch.div(indices, grid_size**2, rounding_mode="trunc") % grid_size + combined = torch.stack([xs, ys, zs], dim=1) + return (combined.float() / (grid_size - 1)) * (volume.bbox_max - volume.bbox_min) + volume.bbox_min + + +def _convert_srgb_to_linear(u: torch.Tensor): + return torch.where(u <= 0.04045, u / 12.92, ((u + 0.055) / 1.055) ** 2.4) + + +def _create_flat_edge_indices( + flat_cube_indices: torch.Tensor, + grid_size: Tuple[int, int, int], +): + num_xs = (grid_size[0] - 1) * grid_size[1] * grid_size[2] + y_offset = num_xs + num_ys = grid_size[0] * (grid_size[1] - 1) * grid_size[2] + z_offset = num_xs + num_ys + return torch.stack( + [ + # Edges spanning x-axis. + flat_cube_indices[:, 0] * grid_size[1] * grid_size[2] + + flat_cube_indices[:, 1] * grid_size[2] + + flat_cube_indices[:, 2], + flat_cube_indices[:, 0] * grid_size[1] * grid_size[2] + + (flat_cube_indices[:, 1] + 1) * grid_size[2] + + flat_cube_indices[:, 2], + flat_cube_indices[:, 0] * grid_size[1] * grid_size[2] + + flat_cube_indices[:, 1] * grid_size[2] + + flat_cube_indices[:, 2] + + 1, + flat_cube_indices[:, 0] * grid_size[1] * grid_size[2] + + (flat_cube_indices[:, 1] + 1) * grid_size[2] + + flat_cube_indices[:, 2] + + 1, + # Edges spanning y-axis. + ( + y_offset + + flat_cube_indices[:, 0] * (grid_size[1] - 1) * grid_size[2] + + flat_cube_indices[:, 1] * grid_size[2] + + flat_cube_indices[:, 2] + ), + ( + y_offset + + (flat_cube_indices[:, 0] + 1) * (grid_size[1] - 1) * grid_size[2] + + flat_cube_indices[:, 1] * grid_size[2] + + flat_cube_indices[:, 2] + ), + ( + y_offset + + flat_cube_indices[:, 0] * (grid_size[1] - 1) * grid_size[2] + + flat_cube_indices[:, 1] * grid_size[2] + + flat_cube_indices[:, 2] + + 1 + ), + ( + y_offset + + (flat_cube_indices[:, 0] + 1) * (grid_size[1] - 1) * grid_size[2] + + flat_cube_indices[:, 1] * grid_size[2] + + flat_cube_indices[:, 2] + + 1 + ), + # Edges spanning z-axis. + ( + z_offset + + flat_cube_indices[:, 0] * grid_size[1] * (grid_size[2] - 1) + + flat_cube_indices[:, 1] * (grid_size[2] - 1) + + flat_cube_indices[:, 2] + ), + ( + z_offset + + (flat_cube_indices[:, 0] + 1) * grid_size[1] * (grid_size[2] - 1) + + flat_cube_indices[:, 1] * (grid_size[2] - 1) + + flat_cube_indices[:, 2] + ), + ( + z_offset + + flat_cube_indices[:, 0] * grid_size[1] * (grid_size[2] - 1) + + (flat_cube_indices[:, 1] + 1) * (grid_size[2] - 1) + + flat_cube_indices[:, 2] + ), + ( + z_offset + + (flat_cube_indices[:, 0] + 1) * grid_size[1] * (grid_size[2] - 1) + + (flat_cube_indices[:, 1] + 1) * (grid_size[2] - 1) + + flat_cube_indices[:, 2] + ), + ], + dim=-1, + ) + + +class VoidNeRFModel(nn.Module): + """ + Implements the default empty space model where all queries are rendered as background. + """ + + def __init__(self, background, channel_scale=255.0): + super().__init__() + background = nn.Parameter(torch.from_numpy(np.array(background)).to(dtype=torch.float32) / channel_scale) + + self.register_buffer("background", background) + + def forward(self, position): + background = self.background[None].to(position.device) + + shape = position.shape[:-1] + ones = [1] * (len(shape) - 1) + n_channels = background.shape[-1] + background = torch.broadcast_to(background.view(background.shape[0], *ones, n_channels), [*shape, n_channels]) + + return background + + +@dataclass +class VolumeRange: + t0: torch.Tensor + t1: torch.Tensor + intersected: torch.Tensor + + def __post_init__(self): + assert self.t0.shape == self.t1.shape == self.intersected.shape + + def partition(self, ts): + """ + Partitions t0 and t1 into n_samples intervals. + + Args: + ts: [batch_size, *shape, n_samples, 1] + + Return: + + lower: [batch_size, *shape, n_samples, 1] upper: [batch_size, *shape, n_samples, 1] delta: [batch_size, + *shape, n_samples, 1] + + where + ts \\in [lower, upper] deltas = upper - lower + """ + + mids = (ts[..., 1:, :] + ts[..., :-1, :]) * 0.5 + lower = torch.cat([self.t0[..., None, :], mids], dim=-2) + upper = torch.cat([mids, self.t1[..., None, :]], dim=-2) + delta = upper - lower + assert lower.shape == upper.shape == delta.shape == ts.shape + return lower, upper, delta + + +class BoundingBoxVolume(nn.Module): + """ + Axis-aligned bounding box defined by the two opposite corners. + """ + + def __init__( + self, + *, + bbox_min, + bbox_max, + min_dist: float = 0.0, + min_t_range: float = 1e-3, + ): + """ + Args: + bbox_min: the left/bottommost corner of the bounding box + bbox_max: the other corner of the bounding box + min_dist: all rays should start at least this distance away from the origin. + """ + super().__init__() + + self.min_dist = min_dist + self.min_t_range = min_t_range + + self.bbox_min = torch.tensor(bbox_min) + self.bbox_max = torch.tensor(bbox_max) + self.bbox = torch.stack([self.bbox_min, self.bbox_max]) + assert self.bbox.shape == (2, 3) + assert min_dist >= 0.0 + assert min_t_range > 0.0 + + def intersect( + self, + origin: torch.Tensor, + direction: torch.Tensor, + t0_lower: Optional[torch.Tensor] = None, + epsilon=1e-6, + ): + """ + Args: + origin: [batch_size, *shape, 3] + direction: [batch_size, *shape, 3] + t0_lower: Optional [batch_size, *shape, 1] lower bound of t0 when intersecting this volume. + params: Optional meta parameters in case Volume is parametric + epsilon: to stabilize calculations + + Return: + A tuple of (t0, t1, intersected) where each has a shape [batch_size, *shape, 1]. If a ray intersects with + the volume, `o + td` is in the volume for all t in [t0, t1]. If the volume is bounded, t1 is guaranteed to + be on the boundary of the volume. + """ + + batch_size, *shape, _ = origin.shape + ones = [1] * len(shape) + bbox = self.bbox.view(1, *ones, 2, 3).to(origin.device) + + def _safe_divide(a, b, epsilon=1e-6): + return a / torch.where(b < 0, b - epsilon, b + epsilon) + + ts = _safe_divide(bbox - origin[..., None, :], direction[..., None, :], epsilon=epsilon) + + # Cases to think about: + # + # 1. t1 <= t0: the ray does not pass through the AABB. + # 2. t0 < t1 <= 0: the ray intersects but the BB is behind the origin. + # 3. t0 <= 0 <= t1: the ray starts from inside the BB + # 4. 0 <= t0 < t1: the ray is not inside and intersects with the BB twice. + # + # 1 and 4 are clearly handled from t0 < t1 below. + # Making t0 at least min_dist (>= 0) takes care of 2 and 3. + t0 = ts.min(dim=-2).values.max(dim=-1, keepdim=True).values.clamp(self.min_dist) + t1 = ts.max(dim=-2).values.min(dim=-1, keepdim=True).values + assert t0.shape == t1.shape == (batch_size, *shape, 1) + if t0_lower is not None: + assert t0.shape == t0_lower.shape + t0 = torch.maximum(t0, t0_lower) + + intersected = t0 + self.min_t_range < t1 + t0 = torch.where(intersected, t0, torch.zeros_like(t0)) + t1 = torch.where(intersected, t1, torch.ones_like(t1)) + + return VolumeRange(t0=t0, t1=t1, intersected=intersected) + + +class StratifiedRaySampler(nn.Module): + """ + Instead of fixed intervals, a sample is drawn uniformly at random from each interval. + """ + + def __init__(self, depth_mode: str = "linear"): + """ + :param depth_mode: linear samples ts linearly in depth. harmonic ensures + closer points are sampled more densely. + """ + self.depth_mode = depth_mode + assert self.depth_mode in ("linear", "geometric", "harmonic") + + def sample( + self, + t0: torch.Tensor, + t1: torch.Tensor, + n_samples: int, + epsilon: float = 1e-3, + ) -> torch.Tensor: + """ + Args: + t0: start time has shape [batch_size, *shape, 1] + t1: finish time has shape [batch_size, *shape, 1] + n_samples: number of ts to sample + Return: + sampled ts of shape [batch_size, *shape, n_samples, 1] + """ + ones = [1] * (len(t0.shape) - 1) + ts = torch.linspace(0, 1, n_samples).view(*ones, n_samples).to(t0.dtype).to(t0.device) + + if self.depth_mode == "linear": + ts = t0 * (1.0 - ts) + t1 * ts + elif self.depth_mode == "geometric": + ts = (t0.clamp(epsilon).log() * (1.0 - ts) + t1.clamp(epsilon).log() * ts).exp() + elif self.depth_mode == "harmonic": + # The original NeRF recommends this interpolation scheme for + # spherical scenes, but there could be some weird edge cases when + # the observer crosses from the inner to outer volume. + ts = 1.0 / (1.0 / t0.clamp(epsilon) * (1.0 - ts) + 1.0 / t1.clamp(epsilon) * ts) + + mids = 0.5 * (ts[..., 1:] + ts[..., :-1]) + upper = torch.cat([mids, t1], dim=-1) + lower = torch.cat([t0, mids], dim=-1) + # yiyi notes: add a random seed here for testing, don't forget to remove + torch.manual_seed(0) + t_rand = torch.rand_like(ts) + + ts = lower + (upper - lower) * t_rand + return ts.unsqueeze(-1) + + +class ImportanceRaySampler(nn.Module): + """ + Given the initial estimate of densities, this samples more from regions/bins expected to have objects. + """ + + def __init__( + self, + volume_range: VolumeRange, + ts: torch.Tensor, + weights: torch.Tensor, + blur_pool: bool = False, + alpha: float = 1e-5, + ): + """ + Args: + volume_range: the range in which a ray intersects the given volume. + ts: earlier samples from the coarse rendering step + weights: discretized version of density * transmittance + blur_pool: if true, use 2-tap max + 2-tap blur filter from mip-NeRF. + alpha: small value to add to weights. + """ + self.volume_range = volume_range + self.ts = ts.clone().detach() + self.weights = weights.clone().detach() + self.blur_pool = blur_pool + self.alpha = alpha + + @torch.no_grad() + def sample(self, t0: torch.Tensor, t1: torch.Tensor, n_samples: int) -> torch.Tensor: + """ + Args: + t0: start time has shape [batch_size, *shape, 1] + t1: finish time has shape [batch_size, *shape, 1] + n_samples: number of ts to sample + Return: + sampled ts of shape [batch_size, *shape, n_samples, 1] + """ + lower, upper, _ = self.volume_range.partition(self.ts) + + batch_size, *shape, n_coarse_samples, _ = self.ts.shape + + weights = self.weights + if self.blur_pool: + padded = torch.cat([weights[..., :1, :], weights, weights[..., -1:, :]], dim=-2) + maxes = torch.maximum(padded[..., :-1, :], padded[..., 1:, :]) + weights = 0.5 * (maxes[..., :-1, :] + maxes[..., 1:, :]) + weights = weights + self.alpha + pmf = weights / weights.sum(dim=-2, keepdim=True) + inds = sample_pmf(pmf, n_samples) + assert inds.shape == (batch_size, *shape, n_samples, 1) + assert (inds >= 0).all() and (inds < n_coarse_samples).all() + + t_rand = torch.rand(inds.shape, device=inds.device) + lower_ = torch.gather(lower, -2, inds) + upper_ = torch.gather(upper, -2, inds) + + ts = lower_ + (upper_ - lower_) * t_rand + ts = torch.sort(ts, dim=-2).values + return ts + + +@dataclass +class MeshDecoderOutput(BaseOutput): + """ + A 3D triangle mesh with optional data at the vertices and faces. + + Args: + verts (`torch.Tensor` of shape `(N, 3)`): + array of vertext coordinates + faces (`torch.Tensor` of shape `(N, 3)`): + array of triangles, pointing to indices in verts. + vertext_channels (Dict): + vertext coordinates for each color channel + """ + + verts: torch.Tensor + faces: torch.Tensor + vertex_channels: Dict[str, torch.Tensor] + + +class MeshDecoder(nn.Module): + """ + Construct meshes from Signed distance functions (SDFs) using marching cubes method + """ + + def __init__(self): + super().__init__() + cases = torch.zeros(256, 5, 3, dtype=torch.long) + masks = torch.zeros(256, 5, dtype=torch.bool) + + self.register_buffer("cases", cases) + self.register_buffer("masks", masks) + + def forward(self, field: torch.Tensor, min_point: torch.Tensor, size: torch.Tensor): + """ + For a signed distance field, produce a mesh using marching cubes. + + :param field: a 3D tensor of field values, where negative values correspond + to the outside of the shape. The dimensions correspond to the x, y, and z directions, respectively. + :param min_point: a tensor of shape [3] containing the point corresponding + to (0, 0, 0) in the field. + :param size: a tensor of shape [3] containing the per-axis distance from the + (0, 0, 0) field corner and the (-1, -1, -1) field corner. + """ + assert len(field.shape) == 3, "input must be a 3D scalar field" + dev = field.device + + cases = self.cases.to(dev) + masks = self.masks.to(dev) + + min_point = min_point.to(dev) + size = size.to(dev) + + grid_size = field.shape + grid_size_tensor = torch.tensor(grid_size).to(size) + + # Create bitmasks between 0 and 255 (inclusive) indicating the state + # of the eight corners of each cube. + bitmasks = (field > 0).to(torch.uint8) + bitmasks = bitmasks[:-1, :, :] | (bitmasks[1:, :, :] << 1) + bitmasks = bitmasks[:, :-1, :] | (bitmasks[:, 1:, :] << 2) + bitmasks = bitmasks[:, :, :-1] | (bitmasks[:, :, 1:] << 4) + + # Compute corner coordinates across the entire grid. + corner_coords = torch.empty(*grid_size, 3, device=dev, dtype=field.dtype) + corner_coords[range(grid_size[0]), :, :, 0] = torch.arange(grid_size[0], device=dev, dtype=field.dtype)[ + :, None, None + ] + corner_coords[:, range(grid_size[1]), :, 1] = torch.arange(grid_size[1], device=dev, dtype=field.dtype)[ + :, None + ] + corner_coords[:, :, range(grid_size[2]), 2] = torch.arange(grid_size[2], device=dev, dtype=field.dtype) + + # Compute all vertices across all edges in the grid, even though we will + # throw some out later. We have (X-1)*Y*Z + X*(Y-1)*Z + X*Y*(Z-1) vertices. + # These are all midpoints, and don't account for interpolation (which is + # done later based on the used edge midpoints). + edge_midpoints = torch.cat( + [ + ((corner_coords[:-1] + corner_coords[1:]) / 2).reshape(-1, 3), + ((corner_coords[:, :-1] + corner_coords[:, 1:]) / 2).reshape(-1, 3), + ((corner_coords[:, :, :-1] + corner_coords[:, :, 1:]) / 2).reshape(-1, 3), + ], + dim=0, + ) + + # Create a flat array of [X, Y, Z] indices for each cube. + cube_indices = torch.zeros( + grid_size[0] - 1, grid_size[1] - 1, grid_size[2] - 1, 3, device=dev, dtype=torch.long + ) + cube_indices[range(grid_size[0] - 1), :, :, 0] = torch.arange(grid_size[0] - 1, device=dev)[:, None, None] + cube_indices[:, range(grid_size[1] - 1), :, 1] = torch.arange(grid_size[1] - 1, device=dev)[:, None] + cube_indices[:, :, range(grid_size[2] - 1), 2] = torch.arange(grid_size[2] - 1, device=dev) + flat_cube_indices = cube_indices.reshape(-1, 3) + + # Create a flat array mapping each cube to 12 global edge indices. + edge_indices = _create_flat_edge_indices(flat_cube_indices, grid_size) + + # Apply the LUT to figure out the triangles. + flat_bitmasks = bitmasks.reshape(-1).long() # must cast to long for indexing to believe this not a mask + local_tris = cases[flat_bitmasks] + local_masks = masks[flat_bitmasks] + # Compute the global edge indices for the triangles. + global_tris = torch.gather(edge_indices, 1, local_tris.reshape(local_tris.shape[0], -1)).reshape( + local_tris.shape + ) + # Select the used triangles for each cube. + selected_tris = global_tris.reshape(-1, 3)[local_masks.reshape(-1)] + + # Now we have a bunch of indices into the full list of possible vertices, + # but we want to reduce this list to only the used vertices. + used_vertex_indices = torch.unique(selected_tris.view(-1)) + used_edge_midpoints = edge_midpoints[used_vertex_indices] + old_index_to_new_index = torch.zeros(len(edge_midpoints), device=dev, dtype=torch.long) + old_index_to_new_index[used_vertex_indices] = torch.arange( + len(used_vertex_indices), device=dev, dtype=torch.long + ) + + # Rewrite the triangles to use the new indices + faces = torch.gather(old_index_to_new_index, 0, selected_tris.view(-1)).reshape(selected_tris.shape) + + # Compute the actual interpolated coordinates corresponding to edge midpoints. + v1 = torch.floor(used_edge_midpoints).to(torch.long) + v2 = torch.ceil(used_edge_midpoints).to(torch.long) + s1 = field[v1[:, 0], v1[:, 1], v1[:, 2]] + s2 = field[v2[:, 0], v2[:, 1], v2[:, 2]] + p1 = (v1.float() / (grid_size_tensor - 1)) * size + min_point + p2 = (v2.float() / (grid_size_tensor - 1)) * size + min_point + # The signs of s1 and s2 should be different. We want to find + # t such that t*s2 + (1-t)*s1 = 0. + t = (s1 / (s1 - s2))[:, None] + verts = t * p2 + (1 - t) * p1 + + return MeshDecoderOutput(verts=verts, faces=faces, vertex_channels=None) + + +@dataclass +class MLPNeRFModelOutput(BaseOutput): + density: torch.Tensor + signed_distance: torch.Tensor + channels: torch.Tensor + ts: torch.Tensor + + +class MLPNeRSTFModel(ModelMixin, ConfigMixin): + @register_to_config + def __init__( + self, + d_hidden: int = 256, + n_output: int = 12, + n_hidden_layers: int = 6, + act_fn: str = "swish", + insert_direction_at: int = 4, + ): + super().__init__() + + # Instantiate the MLP + + # Find out the dimension of encoded position and direction + dummy = torch.eye(1, 3) + d_posenc_pos = encode_position(position=dummy).shape[-1] + d_posenc_dir = encode_direction(position=dummy).shape[-1] + + mlp_widths = [d_hidden] * n_hidden_layers + input_widths = [d_posenc_pos] + mlp_widths + output_widths = mlp_widths + [n_output] + + if insert_direction_at is not None: + input_widths[insert_direction_at] += d_posenc_dir + + self.mlp = nn.ModuleList([nn.Linear(d_in, d_out) for d_in, d_out in zip(input_widths, output_widths)]) + + if act_fn == "swish": + # self.activation = swish + # yiyi testing: + self.activation = lambda x: F.silu(x) + else: + raise ValueError(f"Unsupported activation function {act_fn}") + + self.sdf_activation = torch.tanh + self.density_activation = torch.nn.functional.relu + self.channel_activation = torch.sigmoid + + def map_indices_to_keys(self, output): + h_map = { + "sdf": (0, 1), + "density_coarse": (1, 2), + "density_fine": (2, 3), + "stf": (3, 6), + "nerf_coarse": (6, 9), + "nerf_fine": (9, 12), + } + + mapped_output = {k: output[..., start:end] for k, (start, end) in h_map.items()} + + return mapped_output + + def forward(self, *, position, direction, ts, nerf_level="coarse", rendering_mode="nerf"): + h = encode_position(position) + + h_preact = h + h_directionless = None + for i, layer in enumerate(self.mlp): + if i == self.config.insert_direction_at: # 4 in the config + h_directionless = h_preact + h_direction = encode_direction(position, direction=direction) + h = torch.cat([h, h_direction], dim=-1) + + h = layer(h) + + h_preact = h + + if i < len(self.mlp) - 1: + h = self.activation(h) + + h_final = h + if h_directionless is None: + h_directionless = h_preact + + activation = self.map_indices_to_keys(h_final) + + if nerf_level == "coarse": + h_density = activation["density_coarse"] + else: + h_density = activation["density_fine"] + + if rendering_mode == "nerf": + if nerf_level == "coarse": + h_channels = activation["nerf_coarse"] + else: + h_channels = activation["nerf_fine"] + + elif rendering_mode == "stf": + h_channels = activation["stf"] + + density = self.density_activation(h_density) + signed_distance = self.sdf_activation(activation["sdf"]) + channels = self.channel_activation(h_channels) + + # yiyi notes: I think signed_distance is not used + return MLPNeRFModelOutput(density=density, signed_distance=signed_distance, channels=channels, ts=ts) + + +class ChannelsProj(nn.Module): + def __init__( + self, + *, + vectors: int, + channels: int, + d_latent: int, + ): + super().__init__() + self.proj = nn.Linear(d_latent, vectors * channels) + self.norm = nn.LayerNorm(channels) + self.d_latent = d_latent + self.vectors = vectors + self.channels = channels + + def forward(self, x: torch.Tensor) -> torch.Tensor: + x_bvd = x + w_vcd = self.proj.weight.view(self.vectors, self.channels, self.d_latent) + b_vc = self.proj.bias.view(1, self.vectors, self.channels) + h = torch.einsum("bvd,vcd->bvc", x_bvd, w_vcd) + h = self.norm(h) + + h = h + b_vc + return h + + +class ShapEParamsProjModel(ModelMixin, ConfigMixin): + """ + project the latent representation of a 3D asset to obtain weights of a multi-layer perceptron (MLP). + + For more details, see the original paper: + """ + + @register_to_config + def __init__( + self, + *, + param_names: Tuple[str, ...] = ( + "nerstf.mlp.0.weight", + "nerstf.mlp.1.weight", + "nerstf.mlp.2.weight", + "nerstf.mlp.3.weight", + ), + param_shapes: Tuple[Tuple[int]] = ( + (256, 93), + (256, 256), + (256, 256), + (256, 256), + ), + d_latent: int = 1024, + ): + super().__init__() + + # check inputs + if len(param_names) != len(param_shapes): + raise ValueError("Must provide same number of `param_names` as `param_shapes`") + self.projections = nn.ModuleDict({}) + for k, (vectors, channels) in zip(param_names, param_shapes): + self.projections[_sanitize_name(k)] = ChannelsProj( + vectors=vectors, + channels=channels, + d_latent=d_latent, + ) + + def forward(self, x: torch.Tensor): + out = {} + start = 0 + for k, shape in zip(self.config.param_names, self.config.param_shapes): + vectors, _ = shape + end = start + vectors + x_bvd = x[:, start:end] + out[k] = self.projections[_sanitize_name(k)](x_bvd).reshape(len(x), *shape) + start = end + return out + + +class ShapERenderer(ModelMixin, ConfigMixin): + @register_to_config + def __init__( + self, + *, + param_names: Tuple[str, ...] = ( + "nerstf.mlp.0.weight", + "nerstf.mlp.1.weight", + "nerstf.mlp.2.weight", + "nerstf.mlp.3.weight", + ), + param_shapes: Tuple[Tuple[int, int], ...] = ( + (256, 93), + (256, 256), + (256, 256), + (256, 256), + ), + d_latent: int = 1024, + d_hidden: int = 256, + n_output: int = 12, + n_hidden_layers: int = 6, + act_fn: str = "swish", + insert_direction_at: int = 4, + background: Tuple[float, ...] = ( + 255.0, + 255.0, + 255.0, + ), + ): + super().__init__() + + self.params_proj = ShapEParamsProjModel( + param_names=param_names, + param_shapes=param_shapes, + d_latent=d_latent, + ) + self.mlp = MLPNeRSTFModel(d_hidden, n_output, n_hidden_layers, act_fn, insert_direction_at) + self.void = VoidNeRFModel(background=background, channel_scale=255.0) + self.volume = BoundingBoxVolume(bbox_max=[1.0, 1.0, 1.0], bbox_min=[-1.0, -1.0, -1.0]) + self.mesh_decoder = MeshDecoder() + + @torch.no_grad() + def render_rays(self, rays, sampler, n_samples, prev_model_out=None, render_with_direction=False): + """ + Perform volumetric rendering over a partition of possible t's in the union of rendering volumes (written below + with some abuse of notations) + + C(r) := sum( + transmittance(t[i]) * integrate( + lambda t: density(t) * channels(t) * transmittance(t), [t[i], t[i + 1]], + ) for i in range(len(parts)) + ) + transmittance(t[-1]) * void_model(t[-1]).channels + + where + + 1) transmittance(s) := exp(-integrate(density, [t[0], s])) calculates the probability of light passing through + the volume specified by [t[0], s]. (transmittance of 1 means light can pass freely) 2) density and channels are + obtained by evaluating the appropriate part.model at time t. 3) [t[i], t[i + 1]] is defined as the range of t + where the ray intersects (parts[i].volume \\ union(part.volume for part in parts[:i])) at the surface of the + shell (if bounded). If the ray does not intersect, the integral over this segment is evaluated as 0 and + transmittance(t[i + 1]) := transmittance(t[i]). 4) The last term is integration to infinity (e.g. [t[-1], + math.inf]) that is evaluated by the void_model (i.e. we consider this space to be empty). + + Args: + rays: [batch_size x ... x 2 x 3] origin and direction. sampler: disjoint volume integrals. n_samples: + number of ts to sample. prev_model_outputs: model outputs from the previous rendering step, including + + :return: A tuple of + - `channels` + - A importance samplers for additional fine-grained rendering + - raw model output + """ + origin, direction = rays[..., 0, :], rays[..., 1, :] + + # Integrate over [t[i], t[i + 1]] + + # 1 Intersect the rays with the current volume and sample ts to integrate along. + vrange = self.volume.intersect(origin, direction, t0_lower=None) + ts = sampler.sample(vrange.t0, vrange.t1, n_samples) + ts = ts.to(rays.dtype) + + if prev_model_out is not None: + # Append the previous ts now before fprop because previous + # rendering used a different model and we can't reuse the output. + ts = torch.sort(torch.cat([ts, prev_model_out.ts], dim=-2), dim=-2).values + + batch_size, *_shape, _t0_dim = vrange.t0.shape + _, *ts_shape, _ts_dim = ts.shape + + # 2. Get the points along the ray and query the model + directions = torch.broadcast_to(direction.unsqueeze(-2), [batch_size, *ts_shape, 3]) + positions = origin.unsqueeze(-2) + ts * directions + + directions = directions.to(self.mlp.dtype) + positions = positions.to(self.mlp.dtype) + + optional_directions = directions if render_with_direction else None + + model_out = self.mlp( + position=positions, + direction=optional_directions, + ts=ts, + nerf_level="coarse" if prev_model_out is None else "fine", + ) + + # 3. Integrate the model results + channels, weights, transmittance = integrate_samples( + vrange, model_out.ts, model_out.density, model_out.channels + ) + + # 4. Clean up results that do not intersect with the volume. + transmittance = torch.where(vrange.intersected, transmittance, torch.ones_like(transmittance)) + channels = torch.where(vrange.intersected, channels, torch.zeros_like(channels)) + # 5. integration to infinity (e.g. [t[-1], math.inf]) that is evaluated by the void_model (i.e. we consider this space to be empty). + channels = channels + transmittance * self.void(origin) + + weighted_sampler = ImportanceRaySampler(vrange, ts=model_out.ts, weights=weights) + + return channels, weighted_sampler, model_out + + @torch.no_grad() + def decode_to_image( + self, + latents, + device, + size: int = 64, + ray_batch_size: int = 4096, + n_coarse_samples=64, + n_fine_samples=128, + ): + # project the parameters from the generated latents + projected_params = self.params_proj(latents) + + # update the mlp layers of the renderer + for name, param in self.mlp.state_dict().items(): + if f"nerstf.{name}" in projected_params.keys(): + param.copy_(projected_params[f"nerstf.{name}"].squeeze(0)) + + # create cameras object + camera = create_pan_cameras(size) + rays = camera.camera_rays + rays = rays.to(device) + n_batches = rays.shape[1] // ray_batch_size + + coarse_sampler = StratifiedRaySampler() + + images = [] + + for idx in range(n_batches): + rays_batch = rays[:, idx * ray_batch_size : (idx + 1) * ray_batch_size] + + # render rays with coarse, stratified samples. + _, fine_sampler, coarse_model_out = self.render_rays(rays_batch, coarse_sampler, n_coarse_samples) + # Then, render with additional importance-weighted ray samples. + channels, _, _ = self.render_rays( + rays_batch, fine_sampler, n_fine_samples, prev_model_out=coarse_model_out + ) + + images.append(channels) + + images = torch.cat(images, dim=1) + images = images.view(*camera.shape, camera.height, camera.width, -1).squeeze(0) + + return images + + @torch.no_grad() + def decode_to_mesh( + self, + latents, + device, + grid_size: int = 128, + query_batch_size: int = 4096, + texture_channels: Tuple = ("R", "G", "B"), + ): + # 1. project the parameters from the generated latents + projected_params = self.params_proj(latents) + + # 2. update the mlp layers of the renderer + for name, param in self.mlp.state_dict().items(): + if f"nerstf.{name}" in projected_params.keys(): + param.copy_(projected_params[f"nerstf.{name}"].squeeze(0)) + + # 3. decoding with STF rendering + # 3.1 query the SDF values at vertices along a regular 128**3 grid + + query_points = volume_query_points(self.volume, grid_size) + query_positions = query_points[None].repeat(1, 1, 1).to(device=device, dtype=self.mlp.dtype) + + fields = [] + + for idx in range(0, query_positions.shape[1], query_batch_size): + query_batch = query_positions[:, idx : idx + query_batch_size] + + model_out = self.mlp( + position=query_batch, direction=None, ts=None, nerf_level="fine", rendering_mode="stf" + ) + fields.append(model_out.signed_distance) + + # predicted SDF values + fields = torch.cat(fields, dim=1) + fields = fields.float() + + assert len(fields.shape) == 3 and fields.shape[-1] == 1, ( + f"expected [meta_batch x inner_batch] SDF results, but got {fields.shape}" + ) + + fields = fields.reshape(1, *([grid_size] * 3)) + + # create grid 128 x 128 x 128 + # - force a negative border around the SDFs to close off all the models. + full_grid = torch.zeros( + 1, + grid_size + 2, + grid_size + 2, + grid_size + 2, + device=fields.device, + dtype=fields.dtype, + ) + full_grid.fill_(-1.0) + full_grid[:, 1:-1, 1:-1, 1:-1] = fields + fields = full_grid + + # apply a differentiable implementation of Marching Cubes to construct meshs + raw_meshes = [] + mesh_mask = [] + + for field in fields: + raw_mesh = self.mesh_decoder(field, self.volume.bbox_min, self.volume.bbox_max - self.volume.bbox_min) + mesh_mask.append(True) + raw_meshes.append(raw_mesh) + + mesh_mask = torch.tensor(mesh_mask, device=fields.device) + max_vertices = max(len(m.verts) for m in raw_meshes) + + # 3.2. query the texture color head at each vertex of the resulting mesh. + texture_query_positions = torch.stack( + [m.verts[torch.arange(0, max_vertices) % len(m.verts)] for m in raw_meshes], + dim=0, + ) + texture_query_positions = texture_query_positions.to(device=device, dtype=self.mlp.dtype) + + textures = [] + + for idx in range(0, texture_query_positions.shape[1], query_batch_size): + query_batch = texture_query_positions[:, idx : idx + query_batch_size] + + texture_model_out = self.mlp( + position=query_batch, direction=None, ts=None, nerf_level="fine", rendering_mode="stf" + ) + textures.append(texture_model_out.channels) + + # predict texture color + textures = torch.cat(textures, dim=1) + + textures = _convert_srgb_to_linear(textures) + textures = textures.float() + + # 3.3 augment the mesh with texture data + assert len(textures.shape) == 3 and textures.shape[-1] == len(texture_channels), ( + f"expected [meta_batch x inner_batch x texture_channels] field results, but got {textures.shape}" + ) + + for m, texture in zip(raw_meshes, textures): + texture = texture[: len(m.verts)] + m.vertex_channels = dict(zip(texture_channels, texture.unbind(-1))) + + return raw_meshes[0] diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..84d2a2dd35007a7ee1213fd772ad86c96345bf7d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/__init__.py @@ -0,0 +1,59 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_skyreels_v2"] = ["SkyReelsV2Pipeline"] + _import_structure["pipeline_skyreels_v2_diffusion_forcing"] = ["SkyReelsV2DiffusionForcingPipeline"] + _import_structure["pipeline_skyreels_v2_diffusion_forcing_i2v"] = [ + "SkyReelsV2DiffusionForcingImageToVideoPipeline" + ] + _import_structure["pipeline_skyreels_v2_diffusion_forcing_v2v"] = [ + "SkyReelsV2DiffusionForcingVideoToVideoPipeline" + ] + _import_structure["pipeline_skyreels_v2_i2v"] = ["SkyReelsV2ImageToVideoPipeline"] +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_skyreels_v2 import SkyReelsV2Pipeline + from .pipeline_skyreels_v2_diffusion_forcing import SkyReelsV2DiffusionForcingPipeline + from .pipeline_skyreels_v2_diffusion_forcing_i2v import SkyReelsV2DiffusionForcingImageToVideoPipeline + from .pipeline_skyreels_v2_diffusion_forcing_v2v import SkyReelsV2DiffusionForcingVideoToVideoPipeline + from .pipeline_skyreels_v2_i2v import SkyReelsV2ImageToVideoPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..7a170d24c39af1ddde80c6dad15f3660c38b7def --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_output.py @@ -0,0 +1,20 @@ +from dataclasses import dataclass + +import torch + +from diffusers.utils import BaseOutput + + +@dataclass +class SkyReelsV2PipelineOutput(BaseOutput): + r""" + Output class for SkyReelsV2 pipelines. + + Args: + frames (`torch.Tensor`, `np.ndarray`, or List[List[PIL.Image.Image]]): + List of video outputs - It can be a nested list of length `batch_size,` with each sub-list containing + denoised PIL image sequences of length `num_frames.` It can also be a NumPy array or Torch tensor of shape + `(batch_size, num_frames, channels, height, width)`. + """ + + frames: torch.Tensor diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2.py new file mode 100644 index 0000000000000000000000000000000000000000..d6cd7d7fecebbe873e46d9313fbf7746dbb0193e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2.py @@ -0,0 +1,610 @@ +# Copyright 2025 The SkyReels-V2 Team, The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +from typing import Any, Callable, Dict, List, Optional, Union + +import regex as re +import torch +from transformers import AutoTokenizer, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...loaders import SkyReelsV2LoraLoaderMixin +from ...models import AutoencoderKLWan, SkyReelsV2Transformer3DModel +from ...schedulers import UniPCMultistepScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import SkyReelsV2PipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """\ + Examples: + ```py + >>> import torch + >>> from diffusers import ( + ... SkyReelsV2Pipeline, + ... UniPCMultistepScheduler, + ... AutoencoderKLWan, + ... ) + >>> from diffusers.utils import export_to_video + + >>> # Load the pipeline + >>> # Available models: + >>> # - Skywork/SkyReels-V2-T2V-14B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-T2V-14B-720P-Diffusers + >>> vae = AutoencoderKLWan.from_pretrained( + ... "Skywork/SkyReels-V2-T2V-14B-720P-Diffusers", + ... subfolder="vae", + ... torch_dtype=torch.float32, + ... ) + >>> pipe = SkyReelsV2Pipeline.from_pretrained( + ... "Skywork/SkyReels-V2-T2V-14B-720P-Diffusers", + ... vae=vae, + ... torch_dtype=torch.bfloat16, + ... ) + >>> flow_shift = 8.0 # 8.0 for T2V, 5.0 for I2V + >>> pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=flow_shift) + >>> pipe = pipe.to("cuda") + + >>> prompt = "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window." + + >>> output = pipe( + ... prompt=prompt, + ... num_inference_steps=50, + ... height=544, + ... width=960, + ... guidance_scale=6.0, # 6.0 for T2V, 5.0 for I2V + ... num_frames=97, + ... ).frames[0] + >>> export_to_video(output, "video.mp4", fps=24, quality=8) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +class SkyReelsV2Pipeline(DiffusionPipeline, SkyReelsV2LoraLoaderMixin): + r""" + Pipeline for Text-to-Video (t2v) generation using SkyReels-V2. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + tokenizer ([`T5Tokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + transformer ([`SkyReelsV2Transformer3DModel`]): + Conditional Transformer to denoise the input latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + """ + + model_cpu_offload_seq = "text_encoder->transformer->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + transformer: SkyReelsV2Transformer3DModel, + vae: AutoencoderKLWan, + scheduler: UniPCMultistepScheduler, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + transformer=transformer, + scheduler=scheduler, + ) + + self.vae_scale_factor_temporal = 2 ** sum(self.vae.temperal_downsample) if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = 2 ** len(self.vae.temperal_downsample) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + height, + width, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.prepare_latents + def prepare_latents( + self, + batch_size: int, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 81, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + if latents is not None: + return latents.to(device=device, dtype=dtype) + + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + shape = ( + batch_size, + num_channels_latents, + num_latent_frames, + int(height) // self.vae_scale_factor_spatial, + int(width) // self.vae_scale_factor_spatial, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + return latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1.0 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + height: int = 544, + width: int = 960, + num_frames: int = 97, + num_inference_steps: int = 50, + guidance_scale: float = 6.0, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + height (`int`, defaults to `544`): + The height in pixels of the generated image. + width (`int`, defaults to `960`): + The width in pixels of the generated image. + num_frames (`int`, defaults to `97`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `6.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`SkyReelsV2PipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, *optional*, defaults to `512`): + The maximum sequence length for the text encoder. + + Examples: + + Returns: + [`~SkyReelsV2PipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`SkyReelsV2PipelineOutput`] is returned, otherwise a `tuple` is returned + where the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + height, + width, + prompt_embeds, + negative_prompt_embeds, + callback_on_step_end_tensor_inputs, + ) + + if num_frames % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`num_frames - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the nearest number." + ) + num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + num_frames = max(num_frames, 1) + + self._guidance_scale = guidance_scale + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + transformer_dtype = self.transformer.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.transformer.config.in_channels + latents = self.prepare_latents( + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + num_frames, + torch.float32, + device, + generator, + latents, + ) + + # 6. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + self._current_timestep = t + latent_model_input = latents.to(transformer_dtype) + timestep = t.expand(latents.shape[0]) + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + + if self.do_classifier_free_guidance: + noise_uncond = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + guidance_scale * (noise_pred - noise_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + self._current_timestep = None + + if not output_type == "latent": + latents = latents.to(self.vae.dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video = self.vae.decode(latents, return_dict=False)[0] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return SkyReelsV2PipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing.py new file mode 100644 index 0000000000000000000000000000000000000000..089f92632d38be865dbd39b3e9443480565f7d5c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing.py @@ -0,0 +1,978 @@ +# Copyright 2025 The SkyReels-V2 Team, The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +import math +import re +from copy import deepcopy +from typing import Any, Callable, Dict, List, Optional, Union + +import ftfy +import torch +from transformers import AutoTokenizer, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...loaders import SkyReelsV2LoraLoaderMixin +from ...models import AutoencoderKLWan, SkyReelsV2Transformer3DModel +from ...schedulers import UniPCMultistepScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import SkyReelsV2PipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """\ + Examples: + ```py + >>> import torch + >>> from diffusers import ( + ... SkyReelsV2DiffusionForcingPipeline, + ... UniPCMultistepScheduler, + ... AutoencoderKLWan, + ... ) + >>> from diffusers.utils import export_to_video + + >>> # Load the pipeline + >>> # Available models: + >>> # - Skywork/SkyReels-V2-DF-1.3B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-DF-14B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-DF-14B-720P-Diffusers + >>> vae = AutoencoderKLWan.from_pretrained( + ... "Skywork/SkyReels-V2-DF-14B-720P-Diffusers", + ... subfolder="vae", + ... torch_dtype=torch.float32, + ... ) + >>> pipe = SkyReelsV2DiffusionForcingPipeline.from_pretrained( + ... "Skywork/SkyReels-V2-DF-14B-720P-Diffusers", + ... vae=vae, + ... torch_dtype=torch.bfloat16, + ... ) + >>> flow_shift = 8.0 # 8.0 for T2V, 5.0 for I2V + >>> pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=flow_shift) + >>> pipe = pipe.to("cuda") + + >>> prompt = "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window." + + >>> output = pipe( + ... prompt=prompt, + ... num_inference_steps=30, + ... height=544, + ... width=960, + ... guidance_scale=6.0, # 6.0 for T2V, 5.0 for I2V + ... num_frames=97, + ... ar_step=5, # Controls asynchronous inference (0 for synchronous mode) + ... causal_block_size=5, # Number of frames processed together in a causal block + ... overlap_history=None, # Number of frames to overlap for smooth transitions in long videos + ... addnoise_condition=20, # Improves consistency in long video generation + ... ).frames[0] + >>> export_to_video(output, "video.mp4", fps=24, quality=8) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class SkyReelsV2DiffusionForcingPipeline(DiffusionPipeline, SkyReelsV2LoraLoaderMixin): + """ + Pipeline for Text-to-Video (t2v) generation using SkyReels-V2 with diffusion forcing. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a specific device, etc.). + + Args: + tokenizer ([`AutoTokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`UMT5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + transformer ([`SkyReelsV2Transformer3DModel`]): + Conditional Transformer to denoise the encoded image latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + """ + + model_cpu_offload_seq = "text_encoder->transformer->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + transformer: SkyReelsV2Transformer3DModel, + vae: AutoencoderKLWan, + scheduler: UniPCMultistepScheduler, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + transformer=transformer, + scheduler=scheduler, + ) + + self.vae_scale_factor_temporal = 2 ** sum(self.vae.temperal_downsample) if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = 2 ** len(self.vae.temperal_downsample) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + height, + width, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + overlap_history=None, + num_frames=None, + base_num_frames=None, + ): + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + if num_frames > base_num_frames and overlap_history is None: + raise ValueError( + "`overlap_history` is required when `num_frames` exceeds `base_num_frames` to ensure smooth transitions in long video generation. " + "Please specify a value for `overlap_history`. Recommended values are 17 or 37." + ) + + def prepare_latents( + self, + batch_size: int, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 97, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + base_latent_num_frames: Optional[int] = None, + video_latents: Optional[torch.Tensor] = None, + causal_block_size: Optional[int] = None, + overlap_history_latent_frames: Optional[int] = None, + long_video_iter: Optional[int] = None, + ) -> torch.Tensor: + if latents is not None: + return latents.to(device=device, dtype=dtype) + + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + latent_height = height // self.vae_scale_factor_spatial + latent_width = width // self.vae_scale_factor_spatial + + prefix_video_latents = None + prefix_video_latents_frames = 0 + + if video_latents is not None: # long video generation at the iterations other than the first one + prefix_video_latents = video_latents[:, :, -overlap_history_latent_frames:] + + if prefix_video_latents.shape[2] % causal_block_size != 0: + truncate_len_latents = prefix_video_latents.shape[2] % causal_block_size + logger.warning( + f"The length of prefix video latents is truncated by {truncate_len_latents} frames for the causal block size alignment. " + f"This truncation ensures compatibility with the causal block size, which is required for proper processing. " + f"However, it may slightly affect the continuity of the generated video at the truncation boundary." + ) + prefix_video_latents = prefix_video_latents[:, :, :-truncate_len_latents] + prefix_video_latents_frames = prefix_video_latents.shape[2] + + finished_frame_num = ( + long_video_iter * (base_latent_num_frames - overlap_history_latent_frames) + + overlap_history_latent_frames + ) + left_frame_num = num_latent_frames - finished_frame_num + num_latent_frames = min(left_frame_num + overlap_history_latent_frames, base_latent_num_frames) + elif base_latent_num_frames is not None: # long video generation at the first iteration + num_latent_frames = base_latent_num_frames + else: # short video generation + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + + shape = ( + batch_size, + num_channels_latents, + num_latent_frames, + latent_height, + latent_width, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + + return latents, num_latent_frames, prefix_video_latents, prefix_video_latents_frames + + def generate_timestep_matrix( + self, + num_latent_frames: int, + step_template: torch.Tensor, + base_num_latent_frames: int, + ar_step: int = 5, + num_pre_ready: int = 0, + causal_block_size: int = 1, + shrink_interval_with_mask: bool = False, + ) -> tuple[torch.Tensor, torch.Tensor, torch.Tensor, list[tuple]]: + """ + This function implements the core diffusion forcing algorithm that creates a coordinated denoising schedule + across temporal frames. It supports both synchronous and asynchronous generation modes: + + **Synchronous Mode** (ar_step=0, causal_block_size=1): + - All frames are denoised simultaneously at each timestep + - Each frame follows the same denoising trajectory: [1000, 800, 600, ..., 0] + - Simpler but may have less temporal consistency for long videos + + **Asynchronous Mode** (ar_step>0, causal_block_size>1): + - Frames are grouped into causal blocks and processed block/chunk-wise + - Each block is denoised in a staggered pattern creating a "denoising wave" + - Earlier blocks are more denoised, later blocks lag behind by ar_step timesteps + - Creates stronger temporal dependencies and better consistency + + Args: + num_latent_frames (int): Total number of latent frames to generate + step_template (torch.Tensor): Base timestep schedule (e.g., [1000, 800, 600, ..., 0]) + base_num_latent_frames (int): Maximum frames the model can process in one forward pass + ar_step (int, optional): Autoregressive step size for temporal lag. + 0 = synchronous, >0 = asynchronous. Defaults to 5. + num_pre_ready (int, optional): + Number of frames already denoised (e.g., from prefix in a video2video task). + Defaults to 0. + causal_block_size (int, optional): Number of frames processed as a causal block. + Defaults to 1. + shrink_interval_with_mask (bool, optional): Whether to optimize processing intervals. + Defaults to False. + + Returns: + tuple containing: + - step_matrix (torch.Tensor): Matrix of timesteps for each frame at each iteration Shape: + [num_iterations, num_latent_frames] + - step_index (torch.Tensor): Index matrix for timestep lookup Shape: [num_iterations, + num_latent_frames] + - step_update_mask (torch.Tensor): Boolean mask indicating which frames to update Shape: + [num_iterations, num_latent_frames] + - valid_interval (list[tuple]): List of (start, end) intervals for each iteration + + Raises: + ValueError: If ar_step is too small for the given configuration + """ + # Initialize lists to store the scheduling matrices and metadata + step_matrix, step_index = [], [] # Will store timestep values and indices for each iteration + update_mask, valid_interval = [], [] # Will store update masks and processing intervals + + # Calculate total number of denoising iterations (add 1 for initial noise state) + num_iterations = len(step_template) + 1 + + # Convert frame counts to block counts for causal processing + # Each block contains causal_block_size frames that are processed together + # E.g.: 25 frames ÷ 5 = 5 blocks total + num_blocks = num_latent_frames // causal_block_size + base_num_blocks = base_num_latent_frames // causal_block_size + + # Validate ar_step is sufficient for the given configuration + # In asynchronous mode, we need enough timesteps to create the staggered pattern + if base_num_blocks < num_blocks: + min_ar_step = len(step_template) / base_num_blocks + if ar_step < min_ar_step: + raise ValueError(f"`ar_step` should be at least {math.ceil(min_ar_step)} in your setting") + + # Extend step_template with boundary values for easier indexing + # 999: dummy value for counter starting from 1 + # 0: final timestep (completely denoised) + step_template = torch.cat( + [ + torch.tensor([999], dtype=torch.int64, device=step_template.device), + step_template.long(), + torch.tensor([0], dtype=torch.int64, device=step_template.device), + ] + ) + + # Initialize the previous row state (tracks denoising progress for each block) + # 0 means not started, num_iterations means fully denoised + pre_row = torch.zeros(num_blocks, dtype=torch.long) + + # Mark pre-ready frames (e.g., from prefix video for a video2video task) as already at final denoising state + if num_pre_ready > 0: + pre_row[: num_pre_ready // causal_block_size] = num_iterations + + # Main loop: Generate denoising schedule until all frames are fully denoised + while not torch.all(pre_row >= (num_iterations - 1)): + # Create new row representing the next denoising step + new_row = torch.zeros(num_blocks, dtype=torch.long) + + # Apply diffusion forcing logic for each block + for i in range(num_blocks): + if i == 0 or pre_row[i - 1] >= ( + num_iterations - 1 + ): # the first frame or the last frame is completely denoised + new_row[i] = pre_row[i] + 1 + else: + # Asynchronous mode: lag behind previous block by ar_step timesteps + # This creates the "diffusion forcing" staggered pattern + new_row[i] = new_row[i - 1] - ar_step + + # Clamp values to valid range [0, num_iterations] + new_row = new_row.clamp(0, num_iterations) + + # Create update mask: True for blocks that need denoising update at this iteration + # Exclude blocks that haven't started (new_row != pre_row) or are finished (new_row != num_iterations) + # Final state example: [False, ..., False, True, True, True, True, True] + # where first 20 frames are done (False) and last 5 frames still need updates (True) + update_mask.append((new_row != pre_row) & (new_row != num_iterations)) + + # Store the iteration state + step_index.append(new_row) # Index into step_template + step_matrix.append(step_template[new_row]) # Actual timestep values + pre_row = new_row # Update for next iteration + + # For videos longer than model capacity, we process in sliding windows + terminal_flag = base_num_blocks + + # Optional optimization: shrink interval based on first update mask + if shrink_interval_with_mask: + idx_sequence = torch.arange(num_blocks, dtype=torch.int64) + update_mask = update_mask[0] + update_mask_idx = idx_sequence[update_mask] + last_update_idx = update_mask_idx[-1].item() + terminal_flag = last_update_idx + 1 + + # Each interval defines which frames to process in the current forward pass + for curr_mask in update_mask: + # Extend terminal flag if current mask has updates beyond current terminal + if terminal_flag < num_blocks and curr_mask[terminal_flag]: + terminal_flag += 1 + # Create interval: [start, end) where start ensures we don't exceed model capacity + valid_interval.append((max(terminal_flag - base_num_blocks, 0), terminal_flag)) + + # Convert lists to tensors for efficient processing + step_update_mask = torch.stack(update_mask, dim=0) + step_index = torch.stack(step_index, dim=0) + step_matrix = torch.stack(step_matrix, dim=0) + + # Each block's schedule is replicated to all frames within that block + if causal_block_size > 1: + # Expand each block to causal_block_size frames + step_update_mask = step_update_mask.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + step_index = step_index.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + step_matrix = step_matrix.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + # Scale intervals from block-level to frame-level + valid_interval = [(s * causal_block_size, e * causal_block_size) for s, e in valid_interval] + + return step_matrix, step_index, step_update_mask, valid_interval + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1.0 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]], + negative_prompt: Union[str, List[str]] = None, + height: int = 544, + width: int = 960, + num_frames: int = 97, + num_inference_steps: int = 50, + guidance_scale: float = 6.0, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + overlap_history: Optional[int] = None, + addnoise_condition: float = 0, + base_num_frames: int = 97, + ar_step: int = 0, + causal_block_size: Optional[int] = None, + fps: int = 24, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + height (`int`, defaults to `544`): + The height of the generated video. + width (`int`, defaults to `960`): + The width of the generated video. + num_frames (`int`, defaults to `97`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `6.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. (**6.0 for T2V**, **5.0 for I2V**) + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`SkyReelsV2PipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, *optional*, defaults to `512`): + The maximum sequence length of the prompt. + overlap_history (`int`, *optional*, defaults to `None`): + Number of frames to overlap for smooth transitions in long videos. If `None`, the pipeline assumes + short video generation mode, and no overlap is applied. 17 and 37 are recommended to set. + addnoise_condition (`float`, *optional*, defaults to `0`): + This is used to help smooth the long video generation by adding some noise to the clean condition. Too + large noise can cause the inconsistency as well. 20 is a recommended value, and you may try larger + ones, but it is recommended to not exceed 50. + base_num_frames (`int`, *optional*, defaults to `97`): + 97 or 121 | Base frame count (**97 for 540P**, **121 for 720P**) + ar_step (`int`, *optional*, defaults to `0`): + Controls asynchronous inference (0 for synchronous mode) You can set `ar_step=5` to enable asynchronous + inference. When asynchronous inference, `causal_block_size=5` is recommended while it is not supposed + to be set for synchronous generation. Asynchronous inference will take more steps to diffuse the whole + sequence which means it will be SLOWER than synchronous mode. In our experiments, asynchronous + inference may improve the instruction following and visual consistent performance. + causal_block_size (`int`, *optional*, defaults to `None`): + The number of frames in each block/chunk. Recommended when using asynchronous inference (when ar_step > + 0) + fps (`int`, *optional*, defaults to `24`): + Frame rate of the generated video + + Examples: + + Returns: + [`~SkyReelsV2PipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`SkyReelsV2PipelineOutput`] is returned, otherwise a `tuple` is returned + where the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + height, + width, + prompt_embeds, + negative_prompt_embeds, + callback_on_step_end_tensor_inputs, + overlap_history, + num_frames, + base_num_frames, + ) + + if addnoise_condition > 60: + logger.warning( + f"The value of 'addnoise_condition' is too large ({addnoise_condition}) and may cause inconsistencies in long video generation. A value of 20 is recommended." + ) + + if num_frames % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`num_frames - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the nearest number." + ) + num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + num_frames = max(num_frames, 1) + + self._guidance_scale = guidance_scale + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + transformer_dtype = self.transformer.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + if causal_block_size is None: + causal_block_size = self.transformer.config.num_frame_per_block + else: + self.transformer._set_ar_attention(causal_block_size) + + fps_embeds = [fps] * prompt_embeds.shape[0] + fps_embeds = [0 if i == 16 else 1 for i in fps_embeds] + + # Determine if we're doing long video generation + is_long_video = overlap_history is not None and base_num_frames is not None and num_frames > base_num_frames + # Initialize accumulated_latents to store all latents in one tensor + accumulated_latents = None + if is_long_video: + # Long video generation setup + overlap_history_latent_frames = (overlap_history - 1) // self.vae_scale_factor_temporal + 1 + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + base_latent_num_frames = ( + (base_num_frames - 1) // self.vae_scale_factor_temporal + 1 + if base_num_frames is not None + else num_latent_frames + ) + n_iter = ( + 1 + + (num_latent_frames - base_latent_num_frames - 1) + // (base_latent_num_frames - overlap_history_latent_frames) + + 1 + ) + else: + # Short video generation setup + n_iter = 1 + base_latent_num_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + + # Loop through iterations (multiple iterations only for long videos) + for iter_idx in range(n_iter): + if is_long_video: + logger.debug(f"Processing iteration {iter_idx + 1}/{n_iter} for long video generation...") + + # 5. Prepare latent variables + num_channels_latents = self.transformer.config.in_channels + latents, current_num_latent_frames, prefix_video_latents, prefix_video_latents_frames = ( + self.prepare_latents( + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + num_frames, + torch.float32, + device, + generator, + latents if iter_idx == 0 else None, + video_latents=accumulated_latents, # Pass latents directly instead of decoded video + base_latent_num_frames=base_latent_num_frames if is_long_video else None, + causal_block_size=causal_block_size, + overlap_history_latent_frames=overlap_history_latent_frames if is_long_video else None, + long_video_iter=iter_idx if is_long_video else None, + ) + ) + + if prefix_video_latents_frames > 0: + latents[:, :, :prefix_video_latents_frames, :, :] = prefix_video_latents.to(transformer_dtype) + + # 6. Prepare sample schedulers and timestep matrix + sample_schedulers = [] + for _ in range(current_num_latent_frames): + sample_scheduler = deepcopy(self.scheduler) + sample_scheduler.set_timesteps(num_inference_steps, device=device) + sample_schedulers.append(sample_scheduler) + + # Different matrix generation for short vs long video + step_matrix, _, step_update_mask, valid_interval = self.generate_timestep_matrix( + current_num_latent_frames, + timesteps, + current_num_latent_frames if is_long_video else base_latent_num_frames, + ar_step, + prefix_video_latents_frames, + causal_block_size, + ) + + # 7. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(step_matrix) + + with self.progress_bar(total=len(step_matrix)) as progress_bar: + for i, t in enumerate(step_matrix): + if self.interrupt: + continue + + self._current_timestep = t + valid_interval_start, valid_interval_end = valid_interval[i] + latent_model_input = ( + latents[:, :, valid_interval_start:valid_interval_end, :, :].to(transformer_dtype).clone() + ) + timestep = t.expand(latents.shape[0], -1)[:, valid_interval_start:valid_interval_end].clone() + + if addnoise_condition > 0 and valid_interval_start < prefix_video_latents_frames: + noise_factor = 0.001 * addnoise_condition + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] = ( + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] + * (1.0 - noise_factor) + + torch.randn_like( + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] + ) + * noise_factor + ) + timestep[:, valid_interval_start:prefix_video_latents_frames] = addnoise_condition + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + enable_diffusion_forcing=True, + fps=fps_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + if self.do_classifier_free_guidance: + noise_uncond = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + enable_diffusion_forcing=True, + fps=fps_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + guidance_scale * (noise_pred - noise_uncond) + + update_mask_i = step_update_mask[i] + for idx in range(valid_interval_start, valid_interval_end): + if update_mask_i[idx].item(): + latents[:, :, idx, :, :] = sample_schedulers[idx].step( + noise_pred[:, :, idx - valid_interval_start, :, :], + t[idx], + latents[:, :, idx, :, :], + return_dict=False, + )[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(step_matrix) - 1 or ( + (i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0 + ): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + # Handle latent accumulation for long videos or use the current latents for short videos + if is_long_video: + if accumulated_latents is None: + accumulated_latents = latents + else: + # Keep overlap frames for conditioning but don't include them in final output + accumulated_latents = torch.cat( + [accumulated_latents, latents[:, :, overlap_history_latent_frames:]], dim=2 + ) + + if is_long_video: + latents = accumulated_latents + + self._current_timestep = None + + # Final decoding step - convert latents to pixels + if not output_type == "latent": + latents = latents.to(self.vae.dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video = self.vae.decode(latents, return_dict=False)[0] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return SkyReelsV2PipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing_i2v.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing_i2v.py new file mode 100644 index 0000000000000000000000000000000000000000..2951a9447386ab66a143793084b326d9f39cdd51 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing_i2v.py @@ -0,0 +1,1059 @@ +# Copyright 2025 The SkyReels-V2 Team, The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +import math +import re +from copy import deepcopy +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import ftfy +import PIL +import torch +from transformers import AutoTokenizer, UMT5EncoderModel + +from diffusers.image_processor import PipelineImageInput +from diffusers.utils.torch_utils import randn_tensor +from diffusers.video_processor import VideoProcessor + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...loaders import SkyReelsV2LoraLoaderMixin +from ...models import AutoencoderKLWan, SkyReelsV2Transformer3DModel +from ...schedulers import UniPCMultistepScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import SkyReelsV2PipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """\ + Examples: + ```py + >>> import torch + >>> from diffusers import ( + ... SkyReelsV2DiffusionForcingImageToVideoPipeline, + ... UniPCMultistepScheduler, + ... AutoencoderKLWan, + ... ) + >>> from diffusers.utils import export_to_video + >>> from PIL import Image + + >>> # Load the pipeline + >>> # Available models: + >>> # - Skywork/SkyReels-V2-DF-1.3B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-DF-14B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-DF-14B-720P-Diffusers + >>> vae = AutoencoderKLWan.from_pretrained( + ... "Skywork/SkyReels-V2-DF-14B-720P-Diffusers", + ... subfolder="vae", + ... torch_dtype=torch.float32, + ... ) + >>> pipe = SkyReelsV2DiffusionForcingImageToVideoPipeline.from_pretrained( + ... "Skywork/SkyReels-V2-DF-14B-720P-Diffusers", + ... vae=vae, + ... torch_dtype=torch.bfloat16, + ... ) + >>> flow_shift = 5.0 # 8.0 for T2V, 5.0 for I2V + >>> pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=flow_shift) + >>> pipe = pipe.to("cuda") + + >>> prompt = "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window." + >>> image = Image.open("path/to/image.png") + + >>> output = pipe( + ... image=image, + ... prompt=prompt, + ... num_inference_steps=50, + ... height=544, + ... width=960, + ... guidance_scale=5.0, # 6.0 for T2V, 5.0 for I2V + ... num_frames=97, + ... ar_step=0, # Controls asynchronous inference (0 for synchronous mode) + ... overlap_history=None, # Number of frames to overlap for smooth transitions in long videos + ... addnoise_condition=20, # Improves consistency in long video generation + ... ).frames[0] + >>> export_to_video(output, "video.mp4", fps=24, quality=8) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class SkyReelsV2DiffusionForcingImageToVideoPipeline(DiffusionPipeline, SkyReelsV2LoraLoaderMixin): + """ + Pipeline for Image-to-Video (i2v) generation using SkyReels-V2 with diffusion forcing. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a specific device, etc.). + + Args: + tokenizer ([`AutoTokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`UMT5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + transformer ([`SkyReelsV2Transformer3DModel`]): + Conditional Transformer to denoise the encoded image latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + """ + + model_cpu_offload_seq = "text_encoder->transformer->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + transformer: SkyReelsV2Transformer3DModel, + vae: AutoencoderKLWan, + scheduler: UniPCMultistepScheduler, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + transformer=transformer, + scheduler=scheduler, + ) + + self.vae_scale_factor_temporal = 2 ** sum(self.vae.temperal_downsample) if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = 2 ** len(self.vae.temperal_downsample) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + image, + height, + width, + prompt_embeds=None, + negative_prompt_embeds=None, + image_embeds=None, + callback_on_step_end_tensor_inputs=None, + overlap_history=None, + num_frames=None, + base_num_frames=None, + ): + if image is not None and image_embeds is not None: + raise ValueError( + f"Cannot forward both `image`: {image} and `image_embeds`: {image_embeds}. Please make sure to" + " only forward one of the two." + ) + if image is None and image_embeds is None: + raise ValueError( + "Provide either `image` or `image_embeds`. Cannot leave both `image` and `image_embeds` undefined." + ) + if image is not None and not isinstance(image, torch.Tensor) and not isinstance(image, PIL.Image.Image): + raise ValueError(f"`image` has to be of type `torch.Tensor` or `PIL.Image.Image` but is {type(image)}") + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + if num_frames > base_num_frames and overlap_history is None: + raise ValueError( + "`overlap_history` is required when `num_frames` exceeds `base_num_frames` to ensure smooth transitions in long video generation. " + "Please specify a value for `overlap_history`. Recommended values are 17 or 37." + ) + + def prepare_latents( + self, + image: Optional[PipelineImageInput], + batch_size: int, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 97, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + last_image: Optional[torch.Tensor] = None, + video_latents: Optional[torch.Tensor] = None, + base_latent_num_frames: Optional[int] = None, + causal_block_size: Optional[int] = None, + overlap_history_latent_frames: Optional[int] = None, + long_video_iter: Optional[int] = None, + ) -> Tuple[torch.Tensor, torch.Tensor]: + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + latent_height = height // self.vae_scale_factor_spatial + latent_width = width // self.vae_scale_factor_spatial + + prefix_video_latents_frames = 0 + + if video_latents is not None: # long video generation at the iterations other than the first one + condition = video_latents[:, :, -overlap_history_latent_frames:] + + if condition.shape[2] % causal_block_size != 0: + truncate_len_latents = condition.shape[2] % causal_block_size + logger.warning( + f"The length of prefix video latents is truncated by {truncate_len_latents} frames for the causal block size alignment. " + f"This truncation ensures compatibility with the causal block size, which is required for proper processing. " + f"However, it may slightly affect the continuity of the generated video at the truncation boundary." + ) + condition = condition[:, :, :-truncate_len_latents] + prefix_video_latents_frames = condition.shape[2] + + finished_frame_num = ( + long_video_iter * (base_latent_num_frames - overlap_history_latent_frames) + + overlap_history_latent_frames + ) + left_frame_num = num_latent_frames - finished_frame_num + num_latent_frames = min(left_frame_num + overlap_history_latent_frames, base_latent_num_frames) + elif base_latent_num_frames is not None: # long video generation at the first iteration + num_latent_frames = base_latent_num_frames + else: # short video generation + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + + shape = (batch_size, num_channels_latents, num_latent_frames, latent_height, latent_width) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device=device, dtype=dtype) + + if image is not None: + image = image.unsqueeze(2) + if last_image is not None: + last_image = last_image.unsqueeze(2) + video_condition = torch.cat([image, last_image], dim=0) + else: + video_condition = image + + video_condition = video_condition.to(device=device, dtype=self.vae.dtype) + + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + + if isinstance(generator, list): + latent_condition = [ + retrieve_latents(self.vae.encode(video_condition), sample_mode="argmax") for _ in generator + ] + latent_condition = torch.cat(latent_condition) + else: + latent_condition = retrieve_latents(self.vae.encode(video_condition), sample_mode="argmax") + latent_condition = latent_condition.repeat_interleave(batch_size, dim=0) + + latent_condition = latent_condition.to(dtype) + condition = (latent_condition - latents_mean) * latents_std + prefix_video_latents_frames = condition.shape[2] + + return latents, num_latent_frames, condition, prefix_video_latents_frames + + # Copied from diffusers.pipelines.skyreels_v2.pipeline_skyreels_v2_diffusion_forcing.SkyReelsV2DiffusionForcingPipeline.generate_timestep_matrix + def generate_timestep_matrix( + self, + num_latent_frames: int, + step_template: torch.Tensor, + base_num_latent_frames: int, + ar_step: int = 5, + num_pre_ready: int = 0, + causal_block_size: int = 1, + shrink_interval_with_mask: bool = False, + ) -> tuple[torch.Tensor, torch.Tensor, torch.Tensor, list[tuple]]: + """ + This function implements the core diffusion forcing algorithm that creates a coordinated denoising schedule + across temporal frames. It supports both synchronous and asynchronous generation modes: + + **Synchronous Mode** (ar_step=0, causal_block_size=1): + - All frames are denoised simultaneously at each timestep + - Each frame follows the same denoising trajectory: [1000, 800, 600, ..., 0] + - Simpler but may have less temporal consistency for long videos + + **Asynchronous Mode** (ar_step>0, causal_block_size>1): + - Frames are grouped into causal blocks and processed block/chunk-wise + - Each block is denoised in a staggered pattern creating a "denoising wave" + - Earlier blocks are more denoised, later blocks lag behind by ar_step timesteps + - Creates stronger temporal dependencies and better consistency + + Args: + num_latent_frames (int): Total number of latent frames to generate + step_template (torch.Tensor): Base timestep schedule (e.g., [1000, 800, 600, ..., 0]) + base_num_latent_frames (int): Maximum frames the model can process in one forward pass + ar_step (int, optional): Autoregressive step size for temporal lag. + 0 = synchronous, >0 = asynchronous. Defaults to 5. + num_pre_ready (int, optional): + Number of frames already denoised (e.g., from prefix in a video2video task). + Defaults to 0. + causal_block_size (int, optional): Number of frames processed as a causal block. + Defaults to 1. + shrink_interval_with_mask (bool, optional): Whether to optimize processing intervals. + Defaults to False. + + Returns: + tuple containing: + - step_matrix (torch.Tensor): Matrix of timesteps for each frame at each iteration Shape: + [num_iterations, num_latent_frames] + - step_index (torch.Tensor): Index matrix for timestep lookup Shape: [num_iterations, + num_latent_frames] + - step_update_mask (torch.Tensor): Boolean mask indicating which frames to update Shape: + [num_iterations, num_latent_frames] + - valid_interval (list[tuple]): List of (start, end) intervals for each iteration + + Raises: + ValueError: If ar_step is too small for the given configuration + """ + # Initialize lists to store the scheduling matrices and metadata + step_matrix, step_index = [], [] # Will store timestep values and indices for each iteration + update_mask, valid_interval = [], [] # Will store update masks and processing intervals + + # Calculate total number of denoising iterations (add 1 for initial noise state) + num_iterations = len(step_template) + 1 + + # Convert frame counts to block counts for causal processing + # Each block contains causal_block_size frames that are processed together + # E.g.: 25 frames ÷ 5 = 5 blocks total + num_blocks = num_latent_frames // causal_block_size + base_num_blocks = base_num_latent_frames // causal_block_size + + # Validate ar_step is sufficient for the given configuration + # In asynchronous mode, we need enough timesteps to create the staggered pattern + if base_num_blocks < num_blocks: + min_ar_step = len(step_template) / base_num_blocks + if ar_step < min_ar_step: + raise ValueError(f"`ar_step` should be at least {math.ceil(min_ar_step)} in your setting") + + # Extend step_template with boundary values for easier indexing + # 999: dummy value for counter starting from 1 + # 0: final timestep (completely denoised) + step_template = torch.cat( + [ + torch.tensor([999], dtype=torch.int64, device=step_template.device), + step_template.long(), + torch.tensor([0], dtype=torch.int64, device=step_template.device), + ] + ) + + # Initialize the previous row state (tracks denoising progress for each block) + # 0 means not started, num_iterations means fully denoised + pre_row = torch.zeros(num_blocks, dtype=torch.long) + + # Mark pre-ready frames (e.g., from prefix video for a video2video task) as already at final denoising state + if num_pre_ready > 0: + pre_row[: num_pre_ready // causal_block_size] = num_iterations + + # Main loop: Generate denoising schedule until all frames are fully denoised + while not torch.all(pre_row >= (num_iterations - 1)): + # Create new row representing the next denoising step + new_row = torch.zeros(num_blocks, dtype=torch.long) + + # Apply diffusion forcing logic for each block + for i in range(num_blocks): + if i == 0 or pre_row[i - 1] >= ( + num_iterations - 1 + ): # the first frame or the last frame is completely denoised + new_row[i] = pre_row[i] + 1 + else: + # Asynchronous mode: lag behind previous block by ar_step timesteps + # This creates the "diffusion forcing" staggered pattern + new_row[i] = new_row[i - 1] - ar_step + + # Clamp values to valid range [0, num_iterations] + new_row = new_row.clamp(0, num_iterations) + + # Create update mask: True for blocks that need denoising update at this iteration + # Exclude blocks that haven't started (new_row != pre_row) or are finished (new_row != num_iterations) + # Final state example: [False, ..., False, True, True, True, True, True] + # where first 20 frames are done (False) and last 5 frames still need updates (True) + update_mask.append((new_row != pre_row) & (new_row != num_iterations)) + + # Store the iteration state + step_index.append(new_row) # Index into step_template + step_matrix.append(step_template[new_row]) # Actual timestep values + pre_row = new_row # Update for next iteration + + # For videos longer than model capacity, we process in sliding windows + terminal_flag = base_num_blocks + + # Optional optimization: shrink interval based on first update mask + if shrink_interval_with_mask: + idx_sequence = torch.arange(num_blocks, dtype=torch.int64) + update_mask = update_mask[0] + update_mask_idx = idx_sequence[update_mask] + last_update_idx = update_mask_idx[-1].item() + terminal_flag = last_update_idx + 1 + + # Each interval defines which frames to process in the current forward pass + for curr_mask in update_mask: + # Extend terminal flag if current mask has updates beyond current terminal + if terminal_flag < num_blocks and curr_mask[terminal_flag]: + terminal_flag += 1 + # Create interval: [start, end) where start ensures we don't exceed model capacity + valid_interval.append((max(terminal_flag - base_num_blocks, 0), terminal_flag)) + + # Convert lists to tensors for efficient processing + step_update_mask = torch.stack(update_mask, dim=0) + step_index = torch.stack(step_index, dim=0) + step_matrix = torch.stack(step_matrix, dim=0) + + # Each block's schedule is replicated to all frames within that block + if causal_block_size > 1: + # Expand each block to causal_block_size frames + step_update_mask = step_update_mask.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + step_index = step_index.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + step_matrix = step_matrix.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + # Scale intervals from block-level to frame-level + valid_interval = [(s * causal_block_size, e * causal_block_size) for s, e in valid_interval] + + return step_matrix, step_index, step_update_mask, valid_interval + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1.0 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image: PipelineImageInput, + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + height: int = 544, + width: int = 960, + num_frames: int = 97, + num_inference_steps: int = 50, + guidance_scale: float = 5.0, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + image_embeds: Optional[torch.Tensor] = None, + last_image: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + overlap_history: Optional[int] = None, + addnoise_condition: float = 0, + base_num_frames: int = 97, + ar_step: int = 0, + causal_block_size: Optional[int] = None, + fps: int = 24, + ): + r""" + The call function to the pipeline for generation. + + Args: + image (`PipelineImageInput`): + The input image to condition the generation on. Must be an image, a list of images or a `torch.Tensor`. + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + height (`int`, defaults to `544`): + The height of the generated video. + width (`int`, defaults to `960`): + The width of the generated video. + num_frames (`int`, defaults to `97`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `5.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. (**6.0 for T2V**, **5.0 for I2V**) + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `negative_prompt` input argument. + image_embeds (`torch.Tensor`, *optional*): + Pre-generated image embeddings. Can be used to easily tweak image inputs (weighting). If not provided, + image embeddings are generated from the `image` input argument. + last_image (`torch.Tensor`, *optional*): + Pre-generated image embeddings. Can be used to easily tweak image inputs (weighting). If not provided, + image embeddings are generated from the `image` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`SkyReelsV2PipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, *optional*, defaults to `512`): + The maximum sequence length of the prompt. + overlap_history (`int`, *optional*, defaults to `None`): + Number of frames to overlap for smooth transitions in long videos. If `None`, the pipeline assumes + short video generation mode, and no overlap is applied. 17 and 37 are recommended to set. + addnoise_condition (`float`, *optional*, defaults to `0`): + This is used to help smooth the long video generation by adding some noise to the clean condition. Too + large noise can cause the inconsistency as well. 20 is a recommended value, and you may try larger + ones, but it is recommended to not exceed 50. + base_num_frames (`int`, *optional*, defaults to `97`): + 97 or 121 | Base frame count (**97 for 540P**, **121 for 720P**) + ar_step (`int`, *optional*, defaults to `0`): + Controls asynchronous inference (0 for synchronous mode) You can set `ar_step=5` to enable asynchronous + inference. When asynchronous inference, `causal_block_size=5` is recommended while it is not supposed + to be set for synchronous generation. Asynchronous inference will take more steps to diffuse the whole + sequence which means it will be SLOWER than synchronous mode. In our experiments, asynchronous + inference may improve the instruction following and visual consistent performance. + causal_block_size (`int`, *optional*, defaults to `None`): + The number of frames in each block/chunk. Recommended when using asynchronous inference (when ar_step > + 0) + fps (`int`, *optional*, defaults to `24`): + Frame rate of the generated video + + Examples: + + Returns: + [`~SkyReelsV2PipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`SkyReelsV2PipelineOutput`] is returned, otherwise a `tuple` is returned + where the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + image, + height, + width, + prompt_embeds, + negative_prompt_embeds, + image_embeds, + callback_on_step_end_tensor_inputs, + overlap_history, + num_frames, + base_num_frames, + ) + + if addnoise_condition > 60: + logger.warning( + f"The value of 'addnoise_condition' is too large ({addnoise_condition}) and may cause inconsistencies in long video generation. A value of 20 is recommended." + ) + + if num_frames % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`num_frames - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the nearest number." + ) + num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + num_frames = max(num_frames, 1) + + self._guidance_scale = guidance_scale + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + transformer_dtype = self.transformer.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + if causal_block_size is None: + causal_block_size = self.transformer.config.num_frame_per_block + else: + self.transformer._set_ar_attention(causal_block_size) + + fps_embeds = [fps] * prompt_embeds.shape[0] + fps_embeds = [0 if i == 16 else 1 for i in fps_embeds] + + # Determine if we're doing long video generation + is_long_video = overlap_history is not None and base_num_frames is not None and num_frames > base_num_frames + # Initialize accumulated_latents to store all latents in one tensor + accumulated_latents = None + if is_long_video: + # Long video generation setup + overlap_history_latent_frames = (overlap_history - 1) // self.vae_scale_factor_temporal + 1 + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + base_latent_num_frames = ( + (base_num_frames - 1) // self.vae_scale_factor_temporal + 1 + if base_num_frames is not None + else num_latent_frames + ) + n_iter = ( + 1 + + (num_latent_frames - base_latent_num_frames - 1) + // (base_latent_num_frames - overlap_history_latent_frames) + + 1 + ) + else: + # Short video generation setup + n_iter = 1 + base_latent_num_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + + image = self.video_processor.preprocess(image, height=height, width=width).to(device, dtype=torch.float32) + + if last_image is not None: + last_image = self.video_processor.preprocess(last_image, height=height, width=width).to( + device, dtype=torch.float32 + ) + + # Loop through iterations (multiple iterations only for long videos) + for iter_idx in range(n_iter): + if is_long_video: + logger.debug(f"Processing iteration {iter_idx + 1}/{n_iter} for long video generation...") + + num_channels_latents = self.vae.config.z_dim + latents, current_num_latent_frames, condition, prefix_video_latents_frames = self.prepare_latents( + image if iter_idx == 0 else None, + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + num_frames, + torch.float32, + device, + generator, + latents if iter_idx == 0 else None, + last_image, + video_latents=accumulated_latents, # Pass latents directly instead of decoded video + base_latent_num_frames=base_latent_num_frames if is_long_video else None, + causal_block_size=causal_block_size, + overlap_history_latent_frames=overlap_history_latent_frames if is_long_video else None, + long_video_iter=iter_idx if is_long_video else None, + ) + + if iter_idx == 0: + latents[:, :, :prefix_video_latents_frames, :, :] = condition[: (condition.shape[0] + 1) // 2].to( + transformer_dtype + ) + else: + latents[:, :, :prefix_video_latents_frames, :, :] = condition.to(transformer_dtype) + + if iter_idx == 0 and last_image is not None: + end_video_latents = condition[condition.shape[0] // 2 :].to(transformer_dtype) + + if last_image is not None and iter_idx + 1 == n_iter: + latents = torch.cat([latents, end_video_latents], dim=2) + base_latent_num_frames += prefix_video_latents_frames + current_num_latent_frames += prefix_video_latents_frames + + # 4. Prepare sample schedulers and timestep matrix + sample_schedulers = [] + for _ in range(current_num_latent_frames): + sample_scheduler = deepcopy(self.scheduler) + sample_scheduler.set_timesteps(num_inference_steps, device=device) + sample_schedulers.append(sample_scheduler) + step_matrix, _, step_update_mask, valid_interval = self.generate_timestep_matrix( + current_num_latent_frames, + timesteps, + base_latent_num_frames, + ar_step, + prefix_video_latents_frames, + causal_block_size, + ) + + if last_image is not None and iter_idx + 1 == n_iter: + step_matrix[:, -prefix_video_latents_frames:] = 0 + step_update_mask[:, -prefix_video_latents_frames:] = False + + # 6. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(step_matrix) + + with self.progress_bar(total=len(step_matrix)) as progress_bar: + for i, t in enumerate(step_matrix): + if self.interrupt: + continue + + self._current_timestep = t + valid_interval_start, valid_interval_end = valid_interval[i] + latent_model_input = ( + latents[:, :, valid_interval_start:valid_interval_end, :, :].to(transformer_dtype).clone() + ) + timestep = t.expand(latents.shape[0], -1)[:, valid_interval_start:valid_interval_end].clone() + + if addnoise_condition > 0 and valid_interval_start < prefix_video_latents_frames: + noise_factor = 0.001 * addnoise_condition + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] = ( + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] + * (1.0 - noise_factor) + + torch.randn_like( + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] + ) + * noise_factor + ) + timestep[:, valid_interval_start:prefix_video_latents_frames] = addnoise_condition + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + enable_diffusion_forcing=True, + fps=fps_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + if self.do_classifier_free_guidance: + noise_uncond = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + enable_diffusion_forcing=True, + fps=fps_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + guidance_scale * (noise_pred - noise_uncond) + + update_mask_i = step_update_mask[i] + for idx in range(valid_interval_start, valid_interval_end): + if update_mask_i[idx].item(): + latents[:, :, idx, :, :] = sample_schedulers[idx].step( + noise_pred[:, :, idx - valid_interval_start, :, :], + t[idx], + latents[:, :, idx, :, :], + return_dict=False, + )[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(step_matrix) - 1 or ( + (i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0 + ): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + # Handle latent accumulation for long videos or use the current latents for short videos + if is_long_video: + if accumulated_latents is None: + accumulated_latents = latents + else: + # Keep overlap frames for conditioning but don't include them in final output + accumulated_latents = torch.cat( + [accumulated_latents, latents[:, :, overlap_history_latent_frames:]], + dim=2, + ) + + if is_long_video: + latents = accumulated_latents + + self._current_timestep = None + + # Final decoding step - convert latents to pixels + if not output_type == "latent": + if last_image is not None: + latents = latents[:, :, :-prefix_video_latents_frames, :, :].to(self.vae.dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video = self.vae.decode(latents, return_dict=False)[0] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return SkyReelsV2PipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing_v2v.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing_v2v.py new file mode 100644 index 0000000000000000000000000000000000000000..6fedfc795a40cd0ee786f8fe154f2c8a0c3957dc --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_diffusion_forcing_v2v.py @@ -0,0 +1,1063 @@ +# Copyright 2025 The SkyReels-V2 Team, The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +import inspect +import math +import re +from copy import deepcopy +from typing import Any, Callable, Dict, List, Optional, Union + +import ftfy +import torch +from PIL import Image +from transformers import AutoTokenizer, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...loaders import SkyReelsV2LoraLoaderMixin +from ...models import AutoencoderKLWan, SkyReelsV2Transformer3DModel +from ...schedulers import UniPCMultistepScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import SkyReelsV2PipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """\ + Examples: + ```py + >>> import torch + >>> from diffusers import ( + ... SkyReelsV2DiffusionForcingVideoToVideoPipeline, + ... UniPCMultistepScheduler, + ... AutoencoderKLWan, + ... ) + >>> from diffusers.utils import export_to_video + + >>> # Load the pipeline + >>> # Available models: + >>> # - Skywork/SkyReels-V2-DF-1.3B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-DF-14B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-DF-14B-720P-Diffusers + >>> vae = AutoencoderKLWan.from_pretrained( + ... "Skywork/SkyReels-V2-DF-14B-720P-Diffusers", + ... subfolder="vae", + ... torch_dtype=torch.float32, + ... ) + >>> pipe = SkyReelsV2DiffusionForcingVideoToVideoPipeline.from_pretrained( + ... "Skywork/SkyReels-V2-DF-14B-720P-Diffusers", + ... vae=vae, + ... torch_dtype=torch.bfloat16, + ... ) + >>> flow_shift = 8.0 # 8.0 for T2V, 5.0 for I2V + >>> pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=flow_shift) + >>> pipe = pipe.to("cuda") + + >>> prompt = "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window." + + >>> output = pipe( + ... prompt=prompt, + ... num_inference_steps=50, + ... height=544, + ... width=960, + ... guidance_scale=6.0, # 6.0 for T2V, 5.0 for I2V + ... num_frames=97, + ... ar_step=0, # Controls asynchronous inference (0 for synchronous mode) + ... overlap_history=None, # Number of frames to overlap for smooth transitions in long videos + ... addnoise_condition=20, # Improves consistency in long video generation + ... ).frames[0] + >>> export_to_video(output, "video.mp4", fps=24, quality=8) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class SkyReelsV2DiffusionForcingVideoToVideoPipeline(DiffusionPipeline, SkyReelsV2LoraLoaderMixin): + """ + Pipeline for Video-to-Video (v2v) generation using SkyReels-V2 with diffusion forcing. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a specific device, etc.). + + Args: + tokenizer ([`AutoTokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`UMT5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + transformer ([`SkyReelsV2Transformer3DModel`]): + Conditional Transformer to denoise the encoded image latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + """ + + model_cpu_offload_seq = "text_encoder->transformer->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + transformer: SkyReelsV2Transformer3DModel, + vae: AutoencoderKLWan, + scheduler: UniPCMultistepScheduler, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + transformer=transformer, + scheduler=scheduler, + ) + + self.vae_scale_factor_temporal = 2 ** sum(self.vae.temperal_downsample) if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = 2 ** len(self.vae.temperal_downsample) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + height, + width, + video=None, + latents=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + overlap_history=None, + num_frames=None, + base_num_frames=None, + ): + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + if video is not None and latents is not None: + raise ValueError("Only one of `video` or `latents` should be provided") + + if num_frames > base_num_frames and overlap_history is None: + raise ValueError( + "`overlap_history` is required when `num_frames` exceeds `base_num_frames` to ensure smooth transitions in long video generation. " + "Please specify a value for `overlap_history`. Recommended values are 17 or 37." + ) + + def prepare_latents( + self, + video: torch.Tensor, + batch_size: int = 1, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 97, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + video_latents: Optional[torch.Tensor] = None, + base_latent_num_frames: Optional[int] = None, + overlap_history: Optional[int] = None, + causal_block_size: Optional[int] = None, + overlap_history_latent_frames: Optional[int] = None, + long_video_iter: Optional[int] = None, + ) -> torch.Tensor: + if latents is not None: + return latents.to(device=device, dtype=dtype) + + num_latent_frames = ( + (num_frames - 1) // self.vae_scale_factor_temporal + 1 if latents is None else latents.shape[2] + ) + latent_height = height // self.vae_scale_factor_spatial + latent_width = width // self.vae_scale_factor_spatial + + if long_video_iter == 0: + prefix_video_latents = [ + retrieve_latents( + self.vae.encode( + vid.unsqueeze(0)[:, :, -overlap_history:] if vid.dim() == 4 else vid[:, :, -overlap_history:] + ), + sample_mode="argmax", + ) + for vid in video + ] + prefix_video_latents = torch.cat(prefix_video_latents, dim=0).to(dtype) + + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(device, self.vae.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + device, self.vae.dtype + ) + prefix_video_latents = (prefix_video_latents - latents_mean) * latents_std + else: + prefix_video_latents = video_latents[:, :, -overlap_history_latent_frames:] + + if prefix_video_latents.shape[2] % causal_block_size != 0: + truncate_len_latents = prefix_video_latents.shape[2] % causal_block_size + logger.warning( + f"The length of prefix video latents is truncated by {truncate_len_latents} frames for the causal block size alignment. " + f"This truncation ensures compatibility with the causal block size, which is required for proper processing. " + f"However, it may slightly affect the continuity of the generated video at the truncation boundary." + ) + prefix_video_latents = prefix_video_latents[:, :, :-truncate_len_latents] + prefix_video_latents_frames = prefix_video_latents.shape[2] + + finished_frame_num = ( + long_video_iter * (base_latent_num_frames - overlap_history_latent_frames) + overlap_history_latent_frames + ) + left_frame_num = num_latent_frames - finished_frame_num + num_latent_frames = min(left_frame_num + overlap_history_latent_frames, base_latent_num_frames) + + shape = ( + batch_size, + num_channels_latents, + num_latent_frames, + latent_height, + latent_width, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + + return latents, num_latent_frames, prefix_video_latents, prefix_video_latents_frames + + # Copied from diffusers.pipelines.skyreels_v2.pipeline_skyreels_v2_diffusion_forcing.SkyReelsV2DiffusionForcingPipeline.generate_timestep_matrix + def generate_timestep_matrix( + self, + num_latent_frames: int, + step_template: torch.Tensor, + base_num_latent_frames: int, + ar_step: int = 5, + num_pre_ready: int = 0, + causal_block_size: int = 1, + shrink_interval_with_mask: bool = False, + ) -> tuple[torch.Tensor, torch.Tensor, torch.Tensor, list[tuple]]: + """ + This function implements the core diffusion forcing algorithm that creates a coordinated denoising schedule + across temporal frames. It supports both synchronous and asynchronous generation modes: + + **Synchronous Mode** (ar_step=0, causal_block_size=1): + - All frames are denoised simultaneously at each timestep + - Each frame follows the same denoising trajectory: [1000, 800, 600, ..., 0] + - Simpler but may have less temporal consistency for long videos + + **Asynchronous Mode** (ar_step>0, causal_block_size>1): + - Frames are grouped into causal blocks and processed block/chunk-wise + - Each block is denoised in a staggered pattern creating a "denoising wave" + - Earlier blocks are more denoised, later blocks lag behind by ar_step timesteps + - Creates stronger temporal dependencies and better consistency + + Args: + num_latent_frames (int): Total number of latent frames to generate + step_template (torch.Tensor): Base timestep schedule (e.g., [1000, 800, 600, ..., 0]) + base_num_latent_frames (int): Maximum frames the model can process in one forward pass + ar_step (int, optional): Autoregressive step size for temporal lag. + 0 = synchronous, >0 = asynchronous. Defaults to 5. + num_pre_ready (int, optional): + Number of frames already denoised (e.g., from prefix in a video2video task). + Defaults to 0. + causal_block_size (int, optional): Number of frames processed as a causal block. + Defaults to 1. + shrink_interval_with_mask (bool, optional): Whether to optimize processing intervals. + Defaults to False. + + Returns: + tuple containing: + - step_matrix (torch.Tensor): Matrix of timesteps for each frame at each iteration Shape: + [num_iterations, num_latent_frames] + - step_index (torch.Tensor): Index matrix for timestep lookup Shape: [num_iterations, + num_latent_frames] + - step_update_mask (torch.Tensor): Boolean mask indicating which frames to update Shape: + [num_iterations, num_latent_frames] + - valid_interval (list[tuple]): List of (start, end) intervals for each iteration + + Raises: + ValueError: If ar_step is too small for the given configuration + """ + # Initialize lists to store the scheduling matrices and metadata + step_matrix, step_index = [], [] # Will store timestep values and indices for each iteration + update_mask, valid_interval = [], [] # Will store update masks and processing intervals + + # Calculate total number of denoising iterations (add 1 for initial noise state) + num_iterations = len(step_template) + 1 + + # Convert frame counts to block counts for causal processing + # Each block contains causal_block_size frames that are processed together + # E.g.: 25 frames ÷ 5 = 5 blocks total + num_blocks = num_latent_frames // causal_block_size + base_num_blocks = base_num_latent_frames // causal_block_size + + # Validate ar_step is sufficient for the given configuration + # In asynchronous mode, we need enough timesteps to create the staggered pattern + if base_num_blocks < num_blocks: + min_ar_step = len(step_template) / base_num_blocks + if ar_step < min_ar_step: + raise ValueError(f"`ar_step` should be at least {math.ceil(min_ar_step)} in your setting") + + # Extend step_template with boundary values for easier indexing + # 999: dummy value for counter starting from 1 + # 0: final timestep (completely denoised) + step_template = torch.cat( + [ + torch.tensor([999], dtype=torch.int64, device=step_template.device), + step_template.long(), + torch.tensor([0], dtype=torch.int64, device=step_template.device), + ] + ) + + # Initialize the previous row state (tracks denoising progress for each block) + # 0 means not started, num_iterations means fully denoised + pre_row = torch.zeros(num_blocks, dtype=torch.long) + + # Mark pre-ready frames (e.g., from prefix video for a video2video task) as already at final denoising state + if num_pre_ready > 0: + pre_row[: num_pre_ready // causal_block_size] = num_iterations + + # Main loop: Generate denoising schedule until all frames are fully denoised + while not torch.all(pre_row >= (num_iterations - 1)): + # Create new row representing the next denoising step + new_row = torch.zeros(num_blocks, dtype=torch.long) + + # Apply diffusion forcing logic for each block + for i in range(num_blocks): + if i == 0 or pre_row[i - 1] >= ( + num_iterations - 1 + ): # the first frame or the last frame is completely denoised + new_row[i] = pre_row[i] + 1 + else: + # Asynchronous mode: lag behind previous block by ar_step timesteps + # This creates the "diffusion forcing" staggered pattern + new_row[i] = new_row[i - 1] - ar_step + + # Clamp values to valid range [0, num_iterations] + new_row = new_row.clamp(0, num_iterations) + + # Create update mask: True for blocks that need denoising update at this iteration + # Exclude blocks that haven't started (new_row != pre_row) or are finished (new_row != num_iterations) + # Final state example: [False, ..., False, True, True, True, True, True] + # where first 20 frames are done (False) and last 5 frames still need updates (True) + update_mask.append((new_row != pre_row) & (new_row != num_iterations)) + + # Store the iteration state + step_index.append(new_row) # Index into step_template + step_matrix.append(step_template[new_row]) # Actual timestep values + pre_row = new_row # Update for next iteration + + # For videos longer than model capacity, we process in sliding windows + terminal_flag = base_num_blocks + + # Optional optimization: shrink interval based on first update mask + if shrink_interval_with_mask: + idx_sequence = torch.arange(num_blocks, dtype=torch.int64) + update_mask = update_mask[0] + update_mask_idx = idx_sequence[update_mask] + last_update_idx = update_mask_idx[-1].item() + terminal_flag = last_update_idx + 1 + + # Each interval defines which frames to process in the current forward pass + for curr_mask in update_mask: + # Extend terminal flag if current mask has updates beyond current terminal + if terminal_flag < num_blocks and curr_mask[terminal_flag]: + terminal_flag += 1 + # Create interval: [start, end) where start ensures we don't exceed model capacity + valid_interval.append((max(terminal_flag - base_num_blocks, 0), terminal_flag)) + + # Convert lists to tensors for efficient processing + step_update_mask = torch.stack(update_mask, dim=0) + step_index = torch.stack(step_index, dim=0) + step_matrix = torch.stack(step_matrix, dim=0) + + # Each block's schedule is replicated to all frames within that block + if causal_block_size > 1: + # Expand each block to causal_block_size frames + step_update_mask = step_update_mask.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + step_index = step_index.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + step_matrix = step_matrix.unsqueeze(-1).repeat(1, 1, causal_block_size).flatten(1).contiguous() + # Scale intervals from block-level to frame-level + valid_interval = [(s * causal_block_size, e * causal_block_size) for s, e in valid_interval] + + return step_matrix, step_index, step_update_mask, valid_interval + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1.0 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + video: List[Image.Image], + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + height: int = 544, + width: int = 960, + num_frames: int = 120, + num_inference_steps: int = 50, + guidance_scale: float = 6.0, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + overlap_history: Optional[int] = None, + addnoise_condition: float = 0, + base_num_frames: int = 97, + ar_step: int = 0, + causal_block_size: Optional[int] = None, + fps: int = 24, + ): + r""" + The call function to the pipeline for generation. + + Args: + video (`List[Image.Image]`): + The video to guide the video generation. + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the video generation. If not defined, one has to pass `prompt_embeds`. + instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the video generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + height (`int`, defaults to `544`): + The height of the generated video. + width (`int`, defaults to `960`): + The width of the generated video. + num_frames (`int`, defaults to `120`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `6.0`): + Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). + `guidance_scale` is defined as `w` of equation 2. of [Imagen + Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > + 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, + usually at the expense of lower image quality. (**6.0 for T2V**, **5.0 for I2V**) + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`SkyReelsV2PipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, *optional*, defaults to `512`): + The maximum sequence length of the prompt. + overlap_history (`int`, *optional*, defaults to `None`): + Number of frames to overlap for smooth transitions in long videos. If `None`, the pipeline assumes + short video generation mode, and no overlap is applied. 17 and 37 are recommended to set. + addnoise_condition (`float`, *optional*, defaults to `0`): + This is used to help smooth the long video generation by adding some noise to the clean condition. Too + large noise can cause the inconsistency as well. 20 is a recommended value, and you may try larger + ones, but it is recommended to not exceed 50. + base_num_frames (`int`, *optional*, defaults to `97`): + 97 or 121 | Base frame count (**97 for 540P**, **121 for 720P**) + ar_step (`int`, *optional*, defaults to `0`): + Controls asynchronous inference (0 for synchronous mode) You can set `ar_step=5` to enable asynchronous + inference. When asynchronous inference, `causal_block_size=5` is recommended while it is not supposed + to be set for synchronous generation. Asynchronous inference will take more steps to diffuse the whole + sequence which means it will be SLOWER than synchronous mode. In our experiments, asynchronous + inference may improve the instruction following and visual consistent performance. + causal_block_size (`int`, *optional*, defaults to `None`): + The number of frames in each block/chunk. Recommended when using asynchronous inference (when ar_step > + 0) + fps (`int`, *optional*, defaults to `24`): + Frame rate of the generated video + + Examples: + + Returns: + [`~SkyReelsV2PipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`SkyReelsV2PipelineOutput`] is returned, otherwise a `tuple` is returned + where the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + height = height or self.transformer.config.sample_height * self.vae_scale_factor_spatial + width = width or self.transformer.config.sample_width * self.vae_scale_factor_spatial + num_videos_per_prompt = 1 + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + height, + width, + video, + latents, + prompt_embeds, + negative_prompt_embeds, + callback_on_step_end_tensor_inputs, + overlap_history, + num_frames, + base_num_frames, + ) + + if addnoise_condition > 60: + logger.warning( + f"The value of 'addnoise_condition' is too large ({addnoise_condition}) and may cause inconsistencies in long video generation. A value of 20 is recommended." + ) + + if num_frames % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`num_frames - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the nearest number." + ) + num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + num_frames = max(num_frames, 1) + + self._guidance_scale = guidance_scale + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + transformer_dtype = self.transformer.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + if latents is None: + video_original = self.video_processor.preprocess_video(video, height=height, width=width).to( + device, dtype=torch.float32 + ) + + if causal_block_size is None: + causal_block_size = self.transformer.config.num_frame_per_block + else: + self.transformer._set_ar_attention(causal_block_size) + + fps_embeds = [fps] * prompt_embeds.shape[0] + fps_embeds = [0 if i == 16 else 1 for i in fps_embeds] + + # Long video generation + accumulated_latents = None + overlap_history_latent_frames = (overlap_history - 1) // self.vae_scale_factor_temporal + 1 + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + base_latent_num_frames = ( + (base_num_frames - 1) // self.vae_scale_factor_temporal + 1 + if base_num_frames is not None + else num_latent_frames + ) + n_iter = ( + 1 + + (num_latent_frames - base_latent_num_frames - 1) + // (base_latent_num_frames - overlap_history_latent_frames) + + 1 + ) + for long_video_iter in range(n_iter): + logger.debug(f"Processing iteration {long_video_iter + 1}/{n_iter} for long video generation...") + + # 5. Prepare latent variables + num_channels_latents = self.transformer.config.in_channels + latents, current_num_latent_frames, prefix_video_latents, prefix_video_latents_frames = ( + self.prepare_latents( + video_original, + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + num_frames, + torch.float32, + device, + generator, + latents if long_video_iter == 0 else None, + video_latents=accumulated_latents, # Pass latents directly instead of decoded video + overlap_history=overlap_history, + base_latent_num_frames=base_latent_num_frames, + causal_block_size=causal_block_size, + overlap_history_latent_frames=overlap_history_latent_frames, + long_video_iter=long_video_iter, + ) + ) + + if prefix_video_latents_frames > 0: + latents[:, :, :prefix_video_latents_frames, :, :] = prefix_video_latents.to(transformer_dtype) + + # 4. Prepare sample schedulers and timestep matrix + sample_schedulers = [] + for _ in range(current_num_latent_frames): + sample_scheduler = deepcopy(self.scheduler) + sample_scheduler.set_timesteps(num_inference_steps, device=device) + sample_schedulers.append(sample_scheduler) + step_matrix, _, step_update_mask, valid_interval = self.generate_timestep_matrix( + current_num_latent_frames, + timesteps, + current_num_latent_frames, + ar_step, + prefix_video_latents_frames, + causal_block_size, + ) + + # 6. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(step_matrix) + + with self.progress_bar(total=len(step_matrix)) as progress_bar: + for i, t in enumerate(step_matrix): + if self.interrupt: + continue + + self._current_timestep = t + valid_interval_start, valid_interval_end = valid_interval[i] + latent_model_input = ( + latents[:, :, valid_interval_start:valid_interval_end, :, :].to(transformer_dtype).clone() + ) + timestep = t.expand(latents.shape[0], -1)[:, valid_interval_start:valid_interval_end].clone() + + if addnoise_condition > 0 and valid_interval_start < prefix_video_latents_frames: + noise_factor = 0.001 * addnoise_condition + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] = ( + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] + * (1.0 - noise_factor) + + torch.randn_like( + latent_model_input[:, :, valid_interval_start:prefix_video_latents_frames, :, :] + ) + * noise_factor + ) + timestep[:, valid_interval_start:prefix_video_latents_frames] = addnoise_condition + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + enable_diffusion_forcing=True, + fps=fps_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + if self.do_classifier_free_guidance: + noise_uncond = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + enable_diffusion_forcing=True, + fps=fps_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + guidance_scale * (noise_pred - noise_uncond) + + update_mask_i = step_update_mask[i] + for idx in range(valid_interval_start, valid_interval_end): + if update_mask_i[idx].item(): + latents[:, :, idx, :, :] = sample_schedulers[idx].step( + noise_pred[:, :, idx - valid_interval_start, :, :], + t[idx], + latents[:, :, idx, :, :], + return_dict=False, + )[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(step_matrix) - 1 or ( + (i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0 + ): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + if accumulated_latents is None: + accumulated_latents = latents + else: + # Keep overlap frames for conditioning but don't include them in final output + accumulated_latents = torch.cat( + [accumulated_latents, latents[:, :, overlap_history_latent_frames:]], dim=2 + ) + + latents = accumulated_latents + + self._current_timestep = None + + # Final decoding step - convert latents to pixels + if not output_type == "latent": + latents = latents.to(self.vae.dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video_generated = self.vae.decode(latents, return_dict=False)[0] + video = torch.cat([video_original, video_generated], dim=2) + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return SkyReelsV2PipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_i2v.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_i2v.py new file mode 100644 index 0000000000000000000000000000000000000000..d61b687eadc3d14d97dd2cfcb42bc9f8408557d8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/skyreels_v2/pipeline_skyreels_v2_i2v.py @@ -0,0 +1,745 @@ +# Copyright 2025 The SkyReels-V2 Team, The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import PIL +import regex as re +import torch +from transformers import AutoTokenizer, CLIPProcessor, CLIPVisionModelWithProjection, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput +from ...loaders import SkyReelsV2LoraLoaderMixin +from ...models import AutoencoderKLWan, SkyReelsV2Transformer3DModel +from ...schedulers import UniPCMultistepScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import SkyReelsV2PipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """\ + Examples: + ```py + >>> import torch + >>> from diffusers import ( + ... SkyReelsV2ImageToVideoPipeline, + ... UniPCMultistepScheduler, + ... AutoencoderKLWan, + ... ) + >>> from diffusers.utils import export_to_video + >>> from PIL import Image + + >>> # Load the pipeline + >>> # Available models: + >>> # - Skywork/SkyReels-V2-I2V-1.3B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-I2V-14B-540P-Diffusers + >>> # - Skywork/SkyReels-V2-I2V-14B-720P-Diffusers + >>> vae = AutoencoderKLWan.from_pretrained( + ... "Skywork/SkyReels-V2-I2V-14B-720P-Diffusers", + ... subfolder="vae", + ... torch_dtype=torch.float32, + ... ) + >>> pipe = SkyReelsV2ImageToVideoPipeline.from_pretrained( + ... "Skywork/SkyReels-V2-I2V-14B-720P-Diffusers", + ... vae=vae, + ... torch_dtype=torch.bfloat16, + ... ) + >>> flow_shift = 5.0 # 8.0 for T2V, 5.0 for I2V + >>> pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=flow_shift) + >>> pipe = pipe.to("cuda") + + >>> prompt = "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window." + >>> image = Image.open("path/to/image.png") + + >>> output = pipe( + ... image=image, + ... prompt=prompt, + ... num_inference_steps=50, + ... height=544, + ... width=960, + ... guidance_scale=5.0, # 6.0 for T2V, 5.0 for I2V + ... num_frames=97, + ... ).frames[0] + >>> export_to_video(output, "video.mp4", fps=24, quality=8) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class SkyReelsV2ImageToVideoPipeline(DiffusionPipeline, SkyReelsV2LoraLoaderMixin): + r""" + Pipeline for Image-to-Video (i2v) generation using SkyReels-V2. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + tokenizer ([`T5Tokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + image_encoder ([`CLIPVisionModelWithProjection`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPVisionModelWithProjection), + specifically the + [clip-vit-huge-patch14](https://github.com/mlfoundations/open_clip/blob/main/docs/PRETRAINED.md#vit-h14-xlm-roberta-large) + variant. + transformer ([`SkyReelsV2Transformer3DModel`]): + Conditional Transformer to denoise the input latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + """ + + model_cpu_offload_seq = "text_encoder->image_encoder->transformer->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + image_encoder: CLIPVisionModelWithProjection, + image_processor: CLIPProcessor, + transformer: SkyReelsV2Transformer3DModel, + vae: AutoencoderKLWan, + scheduler: UniPCMultistepScheduler, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + image_encoder=image_encoder, + transformer=transformer, + scheduler=scheduler, + image_processor=image_processor, + ) + + self.vae_scale_factor_temporal = 2 ** sum(self.vae.temperal_downsample) if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = 2 ** len(self.vae.temperal_downsample) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + self.image_processor = image_processor + + # Copied from diffusers.pipelines.wan.pipeline_wan_i2v.WanImageToVideoPipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 512, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.wan.pipeline_wan_i2v.WanImageToVideoPipeline.encode_image + def encode_image( + self, + image: PipelineImageInput, + device: Optional[torch.device] = None, + ): + device = device or self._execution_device + image = self.image_processor(images=image, return_tensors="pt").to(device) + image_embeds = self.image_encoder(**image, output_hidden_states=True) + return image_embeds.hidden_states[-2] + + # Copied from diffusers.pipelines.wan.pipeline_wan_i2v.WanImageToVideoPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + image, + height, + width, + prompt_embeds=None, + negative_prompt_embeds=None, + image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if image is not None and image_embeds is not None: + raise ValueError( + f"Cannot forward both `image`: {image} and `image_embeds`: {image_embeds}. Please make sure to" + " only forward one of the two." + ) + if image is None and image_embeds is None: + raise ValueError( + "Provide either `image` or `prompt_embeds`. Cannot leave both `image` and `image_embeds` undefined." + ) + if image is not None and not isinstance(image, torch.Tensor) and not isinstance(image, PIL.Image.Image): + raise ValueError(f"`image` has to be of type `torch.Tensor` or `PIL.Image.Image` but is {type(image)}") + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + def prepare_latents( + self, + image: PipelineImageInput, + batch_size: int, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 81, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + last_image: Optional[torch.Tensor] = None, + ) -> Tuple[torch.Tensor, torch.Tensor]: + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + latent_height = height // self.vae_scale_factor_spatial + latent_width = width // self.vae_scale_factor_spatial + + shape = (batch_size, num_channels_latents, num_latent_frames, latent_height, latent_width) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device=device, dtype=dtype) + + image = image.unsqueeze(2) + if last_image is None: + video_condition = torch.cat( + [image, image.new_zeros(image.shape[0], image.shape[1], num_frames - 1, height, width)], dim=2 + ) + else: + last_image = last_image.unsqueeze(2) + video_condition = torch.cat( + [image, image.new_zeros(image.shape[0], image.shape[1], num_frames - 2, height, width), last_image], + dim=2, + ) + video_condition = video_condition.to(device=device, dtype=self.vae.dtype) + + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + + if isinstance(generator, list): + latent_condition = [ + retrieve_latents(self.vae.encode(video_condition), sample_mode="argmax") for _ in generator + ] + latent_condition = torch.cat(latent_condition) + else: + latent_condition = retrieve_latents(self.vae.encode(video_condition), sample_mode="argmax") + latent_condition = latent_condition.repeat(batch_size, 1, 1, 1, 1) + + latent_condition = latent_condition.to(dtype) + latent_condition = (latent_condition - latents_mean) * latents_std + + mask_lat_size = torch.ones(batch_size, 1, num_frames, latent_height, latent_width) + + if last_image is None: + mask_lat_size[:, :, list(range(1, num_frames))] = 0 + else: + mask_lat_size[:, :, list(range(1, num_frames - 1))] = 0 + first_frame_mask = mask_lat_size[:, :, 0:1] + first_frame_mask = torch.repeat_interleave(first_frame_mask, dim=2, repeats=self.vae_scale_factor_temporal) + mask_lat_size = torch.concat([first_frame_mask, mask_lat_size[:, :, 1:, :]], dim=2) + mask_lat_size = mask_lat_size.view(batch_size, -1, self.vae_scale_factor_temporal, latent_height, latent_width) + mask_lat_size = mask_lat_size.transpose(1, 2) + mask_lat_size = mask_lat_size.to(latent_condition.device) + + return latents, torch.concat([mask_lat_size, latent_condition], dim=1) + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image: PipelineImageInput, + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + height: int = 544, + width: int = 960, + num_frames: int = 97, + num_inference_steps: int = 50, + guidance_scale: float = 5.0, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + image_embeds: Optional[torch.Tensor] = None, + last_image: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + The call function to the pipeline for generation. + + Args: + image (`PipelineImageInput`): + The input image to condition the generation on. Must be an image, a list of images or a `torch.Tensor`. + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + height (`int`, defaults to `544`): + The height of the generated video. + width (`int`, defaults to `960`): + The width of the generated video. + num_frames (`int`, defaults to `97`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `5.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `negative_prompt` input argument. + image_embeds (`torch.Tensor`, *optional*): + Pre-generated image embeddings. Can be used to easily tweak image inputs (weighting). If not provided, + image embeddings are generated from the `image` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`WanPipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, *optional*, defaults to `512`): + The maximum sequence length of the prompt. + + Examples: + + Returns: + [`~SkyReelsV2PipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`SkyReelsV2PipelineOutput`] is returned, otherwise a `tuple` is returned + where the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + image, + height, + width, + prompt_embeds, + negative_prompt_embeds, + image_embeds, + callback_on_step_end_tensor_inputs, + ) + + if num_frames % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`num_frames - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the nearest number." + ) + num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + num_frames = max(num_frames, 1) + + self._guidance_scale = guidance_scale + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + # Encode image embedding + transformer_dtype = self.transformer.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + if image_embeds is None: + if last_image is None: + image_embeds = self.encode_image(image, device) + else: + image_embeds = self.encode_image([image, last_image], device) + image_embeds = image_embeds.repeat(batch_size, 1, 1) + image_embeds = image_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.vae.config.z_dim + image = self.video_processor.preprocess(image, height=height, width=width).to(device, dtype=torch.float32) + if last_image is not None: + last_image = self.video_processor.preprocess(last_image, height=height, width=width).to( + device, dtype=torch.float32 + ) + latents, condition = self.prepare_latents( + image, + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + num_frames, + torch.float32, + device, + generator, + latents, + last_image, + ) + + # 6. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + self._current_timestep = t + latent_model_input = torch.cat([latents, condition], dim=1).to(transformer_dtype) + timestep = t.expand(latents.shape[0]) + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + encoder_hidden_states_image=image_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + + if self.do_classifier_free_guidance: + noise_uncond = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + encoder_hidden_states_image=image_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + guidance_scale * (noise_pred - noise_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + self._current_timestep = None + + if not output_type == "latent": + latents = latents.to(self.vae.dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video = self.vae.decode(latents, return_dict=False)[0] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return SkyReelsV2PipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..dfdd419ae9914e64c7fdcf7c152ac308b75d75d2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/__init__.py @@ -0,0 +1,50 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, + is_transformers_version, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.27.0")): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["modeling_stable_audio"] = ["StableAudioProjectionModel"] + _import_structure["pipeline_stable_audio"] = ["StableAudioPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.27.0")): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + + else: + from .modeling_stable_audio import StableAudioProjectionModel + from .pipeline_stable_audio import StableAudioPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/modeling_stable_audio.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/modeling_stable_audio.py new file mode 100644 index 0000000000000000000000000000000000000000..07b382dfc49f96df80eba82f39ae623b4bd11213 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/modeling_stable_audio.py @@ -0,0 +1,157 @@ +# Copyright 2025 Stability AI and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from math import pi +from typing import Optional + +import torch +import torch.nn as nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models.modeling_utils import ModelMixin +from ...utils import BaseOutput, logging + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +class StableAudioPositionalEmbedding(nn.Module): + """Used for continuous time""" + + def __init__(self, dim: int): + super().__init__() + assert (dim % 2) == 0 + half_dim = dim // 2 + self.weights = nn.Parameter(torch.randn(half_dim)) + + def forward(self, times: torch.Tensor) -> torch.Tensor: + times = times[..., None] + freqs = times * self.weights[None] * 2 * pi + fouriered = torch.cat((freqs.sin(), freqs.cos()), dim=-1) + fouriered = torch.cat((times, fouriered), dim=-1) + return fouriered + + +@dataclass +class StableAudioProjectionModelOutput(BaseOutput): + """ + Args: + Class for StableAudio projection layer's outputs. + text_hidden_states (`torch.Tensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states obtained by linearly projecting the hidden-states for the text encoder. + seconds_start_hidden_states (`torch.Tensor` of shape `(batch_size, 1, hidden_size)`, *optional*): + Sequence of hidden-states obtained by linearly projecting the audio start hidden states. + seconds_end_hidden_states (`torch.Tensor` of shape `(batch_size, 1, hidden_size)`, *optional*): + Sequence of hidden-states obtained by linearly projecting the audio end hidden states. + """ + + text_hidden_states: Optional[torch.Tensor] = None + seconds_start_hidden_states: Optional[torch.Tensor] = None + seconds_end_hidden_states: Optional[torch.Tensor] = None + + +class StableAudioNumberConditioner(nn.Module): + """ + A simple linear projection model to map numbers to a latent space. + + Args: + number_embedding_dim (`int`): + Dimensionality of the number embeddings. + min_value (`int`): + The minimum value of the seconds number conditioning modules. + max_value (`int`): + The maximum value of the seconds number conditioning modules + internal_dim (`int`): + Dimensionality of the intermediate number hidden states. + """ + + def __init__( + self, + number_embedding_dim, + min_value, + max_value, + internal_dim: Optional[int] = 256, + ): + super().__init__() + self.time_positional_embedding = nn.Sequential( + StableAudioPositionalEmbedding(internal_dim), + nn.Linear(in_features=internal_dim + 1, out_features=number_embedding_dim), + ) + + self.number_embedding_dim = number_embedding_dim + self.min_value = min_value + self.max_value = max_value + + def forward( + self, + floats: torch.Tensor, + ): + floats = floats.clamp(self.min_value, self.max_value) + + normalized_floats = (floats - self.min_value) / (self.max_value - self.min_value) + + # Cast floats to same type as embedder + embedder_dtype = next(self.time_positional_embedding.parameters()).dtype + normalized_floats = normalized_floats.to(embedder_dtype) + + embedding = self.time_positional_embedding(normalized_floats) + float_embeds = embedding.view(-1, 1, self.number_embedding_dim) + + return float_embeds + + +class StableAudioProjectionModel(ModelMixin, ConfigMixin): + """ + A simple linear projection model to map the conditioning values to a shared latent space. + + Args: + text_encoder_dim (`int`): + Dimensionality of the text embeddings from the text encoder (T5). + conditioning_dim (`int`): + Dimensionality of the output conditioning tensors. + min_value (`int`): + The minimum value of the seconds number conditioning modules. + max_value (`int`): + The maximum value of the seconds number conditioning modules + """ + + @register_to_config + def __init__(self, text_encoder_dim, conditioning_dim, min_value, max_value): + super().__init__() + self.text_projection = ( + nn.Identity() if conditioning_dim == text_encoder_dim else nn.Linear(text_encoder_dim, conditioning_dim) + ) + self.start_number_conditioner = StableAudioNumberConditioner(conditioning_dim, min_value, max_value) + self.end_number_conditioner = StableAudioNumberConditioner(conditioning_dim, min_value, max_value) + + def forward( + self, + text_hidden_states: Optional[torch.Tensor] = None, + start_seconds: Optional[torch.Tensor] = None, + end_seconds: Optional[torch.Tensor] = None, + ): + text_hidden_states = ( + text_hidden_states if text_hidden_states is None else self.text_projection(text_hidden_states) + ) + seconds_start_hidden_states = ( + start_seconds if start_seconds is None else self.start_number_conditioner(start_seconds) + ) + seconds_end_hidden_states = end_seconds if end_seconds is None else self.end_number_conditioner(end_seconds) + + return StableAudioProjectionModelOutput( + text_hidden_states=text_hidden_states, + seconds_start_hidden_states=seconds_start_hidden_states, + seconds_end_hidden_states=seconds_end_hidden_states, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/pipeline_stable_audio.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/pipeline_stable_audio.py new file mode 100644 index 0000000000000000000000000000000000000000..b7faf097ab0dd4c3e43414976eaefb22a11d8f12 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_audio/pipeline_stable_audio.py @@ -0,0 +1,764 @@ +# Copyright 2025 Stability AI and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Callable, List, Optional, Union + +import torch +from transformers import ( + T5EncoderModel, + T5Tokenizer, + T5TokenizerFast, +) + +from ...models import AutoencoderOobleck, StableAudioDiTModel +from ...models.embeddings import get_1d_rotary_pos_embed +from ...schedulers import EDMDPMSolverMultistepScheduler +from ...utils import deprecate, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import AudioPipelineOutput, DiffusionPipeline +from .modeling_stable_audio import StableAudioProjectionModel + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import scipy + >>> import torch + >>> import soundfile as sf + >>> from diffusers import StableAudioPipeline + + >>> repo_id = "stabilityai/stable-audio-open-1.0" + >>> pipe = StableAudioPipeline.from_pretrained(repo_id, torch_dtype=torch.float16) + >>> pipe = pipe.to("cuda") + + >>> # define the prompts + >>> prompt = "The sound of a hammer hitting a wooden surface." + >>> negative_prompt = "Low quality." + + >>> # set the seed for generator + >>> generator = torch.Generator("cuda").manual_seed(0) + + >>> # run the generation + >>> audio = pipe( + ... prompt, + ... negative_prompt=negative_prompt, + ... num_inference_steps=200, + ... audio_end_in_s=10.0, + ... num_waveforms_per_prompt=3, + ... generator=generator, + ... ).audios + + >>> output = audio[0].T.float().cpu().numpy() + >>> sf.write("hammer.wav", output, pipe.vae.sampling_rate) + ``` +""" + + +class StableAudioPipeline(DiffusionPipeline): + r""" + Pipeline for text-to-audio generation using StableAudio. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`AutoencoderOobleck`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.T5EncoderModel`]): + Frozen text-encoder. StableAudio uses the encoder of + [T5](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5EncoderModel), specifically the + [google-t5/t5-base](https://huggingface.co/google-t5/t5-base) variant. + projection_model ([`StableAudioProjectionModel`]): + A trained model used to linearly project the hidden-states from the text encoder model and the start and + end seconds. The projected hidden-states from the encoder and the conditional seconds are concatenated to + give the input to the transformer model. + tokenizer ([`~transformers.T5Tokenizer`]): + Tokenizer to tokenize text for the frozen text-encoder. + transformer ([`StableAudioDiTModel`]): + A `StableAudioDiTModel` to denoise the encoded audio latents. + scheduler ([`EDMDPMSolverMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded audio latents. + """ + + model_cpu_offload_seq = "text_encoder->projection_model->transformer->vae" + + def __init__( + self, + vae: AutoencoderOobleck, + text_encoder: T5EncoderModel, + projection_model: StableAudioProjectionModel, + tokenizer: Union[T5Tokenizer, T5TokenizerFast], + transformer: StableAudioDiTModel, + scheduler: EDMDPMSolverMultistepScheduler, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + projection_model=projection_model, + tokenizer=tokenizer, + transformer=transformer, + scheduler=scheduler, + ) + self.rotary_embed_dim = self.transformer.config.attention_head_dim // 2 + + # Copied from diffusers.pipelines.pipeline_utils.StableDiffusionMixin.enable_vae_slicing + def enable_vae_slicing(self): + r""" + Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to + compute decoding in several steps. This is useful to save some memory and allow larger batch sizes. + """ + depr_message = f"Calling `enable_vae_slicing()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.enable_slicing()`." + deprecate( + "enable_vae_slicing", + "0.40.0", + depr_message, + ) + self.vae.enable_slicing() + + # Copied from diffusers.pipelines.pipeline_utils.StableDiffusionMixin.disable_vae_slicing + def disable_vae_slicing(self): + r""" + Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to + computing decoding in one step. + """ + depr_message = f"Calling `disable_vae_slicing()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.disable_slicing()`." + deprecate( + "disable_vae_slicing", + "0.40.0", + depr_message, + ) + self.vae.disable_slicing() + + def encode_prompt( + self, + prompt, + device, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + attention_mask: Optional[torch.LongTensor] = None, + negative_attention_mask: Optional[torch.LongTensor] = None, + ): + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # 1. Tokenize text + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + attention_mask = text_inputs.attention_mask + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + f"The following part of your input was truncated because {self.text_encoder.config.model_type} can " + f"only handle sequences up to {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + text_input_ids = text_input_ids.to(device) + attention_mask = attention_mask.to(device) + + # 2. Text encoder forward + self.text_encoder.eval() + prompt_embeds = self.text_encoder( + text_input_ids, + attention_mask=attention_mask, + ) + prompt_embeds = prompt_embeds[0] + + if do_classifier_free_guidance and negative_prompt is not None: + uncond_tokens: List[str] + if type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # 1. Tokenize text + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + + uncond_input_ids = uncond_input.input_ids.to(device) + negative_attention_mask = uncond_input.attention_mask.to(device) + + # 2. Text encoder forward + self.text_encoder.eval() + negative_prompt_embeds = self.text_encoder( + uncond_input_ids, + attention_mask=negative_attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if negative_attention_mask is not None: + # set the masked tokens to the null embed + negative_prompt_embeds = torch.where( + negative_attention_mask.to(torch.bool).unsqueeze(2), negative_prompt_embeds, 0.0 + ) + + # 3. Project prompt_embeds and negative_prompt_embeds + if do_classifier_free_guidance and negative_prompt_embeds is not None: + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the negative and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + if attention_mask is not None and negative_attention_mask is None: + negative_attention_mask = torch.ones_like(attention_mask) + elif attention_mask is None and negative_attention_mask is not None: + attention_mask = torch.ones_like(negative_attention_mask) + + if attention_mask is not None: + attention_mask = torch.cat([negative_attention_mask, attention_mask]) + + prompt_embeds = self.projection_model( + text_hidden_states=prompt_embeds, + ).text_hidden_states + if attention_mask is not None: + prompt_embeds = prompt_embeds * attention_mask.unsqueeze(-1).to(prompt_embeds.dtype) + prompt_embeds = prompt_embeds * attention_mask.unsqueeze(-1).to(prompt_embeds.dtype) + + return prompt_embeds + + def encode_duration( + self, + audio_start_in_s, + audio_end_in_s, + device, + do_classifier_free_guidance, + batch_size, + ): + audio_start_in_s = audio_start_in_s if isinstance(audio_start_in_s, list) else [audio_start_in_s] + audio_end_in_s = audio_end_in_s if isinstance(audio_end_in_s, list) else [audio_end_in_s] + + if len(audio_start_in_s) == 1: + audio_start_in_s = audio_start_in_s * batch_size + if len(audio_end_in_s) == 1: + audio_end_in_s = audio_end_in_s * batch_size + + # Cast the inputs to floats + audio_start_in_s = [float(x) for x in audio_start_in_s] + audio_start_in_s = torch.tensor(audio_start_in_s).to(device) + + audio_end_in_s = [float(x) for x in audio_end_in_s] + audio_end_in_s = torch.tensor(audio_end_in_s).to(device) + + projection_output = self.projection_model( + start_seconds=audio_start_in_s, + end_seconds=audio_end_in_s, + ) + seconds_start_hidden_states = projection_output.seconds_start_hidden_states + seconds_end_hidden_states = projection_output.seconds_end_hidden_states + + # For classifier free guidance, we need to do two forward passes. + # Here we repeat the audio hidden states to avoid doing two forward passes + if do_classifier_free_guidance: + seconds_start_hidden_states = torch.cat([seconds_start_hidden_states, seconds_start_hidden_states], dim=0) + seconds_end_hidden_states = torch.cat([seconds_end_hidden_states, seconds_end_hidden_states], dim=0) + + return seconds_start_hidden_states, seconds_end_hidden_states + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + audio_start_in_s, + audio_end_in_s, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + attention_mask=None, + negative_attention_mask=None, + initial_audio_waveforms=None, + initial_audio_sampling_rate=None, + ): + if audio_end_in_s < audio_start_in_s: + raise ValueError( + f"`audio_end_in_s={audio_end_in_s}' must be higher than 'audio_start_in_s={audio_start_in_s}` but " + ) + + if ( + audio_start_in_s < self.projection_model.config.min_value + or audio_start_in_s > self.projection_model.config.max_value + ): + raise ValueError( + f"`audio_start_in_s` must be greater than or equal to {self.projection_model.config.min_value}, and lower than or equal to {self.projection_model.config.max_value} but " + f"is {audio_start_in_s}." + ) + + if ( + audio_end_in_s < self.projection_model.config.min_value + or audio_end_in_s > self.projection_model.config.max_value + ): + raise ValueError( + f"`audio_end_in_s` must be greater than or equal to {self.projection_model.config.min_value}, and lower than or equal to {self.projection_model.config.max_value} but " + f"is {audio_end_in_s}." + ) + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and (prompt_embeds is None): + raise ValueError( + "Provide either `prompt`, or `prompt_embeds`. Cannot leave" + "`prompt` undefined without specifying `prompt_embeds`." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + if attention_mask is not None and attention_mask.shape != prompt_embeds.shape[:2]: + raise ValueError( + "`attention_mask should have the same batch size and sequence length as `prompt_embeds`, but got:" + f"`attention_mask: {attention_mask.shape} != `prompt_embeds` {prompt_embeds.shape}" + ) + + if initial_audio_sampling_rate is None and initial_audio_waveforms is not None: + raise ValueError( + "`initial_audio_waveforms' is provided but the sampling rate is not. Make sure to pass `initial_audio_sampling_rate`." + ) + + if initial_audio_sampling_rate is not None and initial_audio_sampling_rate != self.vae.sampling_rate: + raise ValueError( + f"`initial_audio_sampling_rate` must be {self.vae.hop_length}' but is `{initial_audio_sampling_rate}`." + "Make sure to resample the `initial_audio_waveforms` and to correct the sampling rate. " + ) + + def prepare_latents( + self, + batch_size, + num_channels_vae, + sample_size, + dtype, + device, + generator, + latents=None, + initial_audio_waveforms=None, + num_waveforms_per_prompt=None, + audio_channels=None, + ): + shape = (batch_size, num_channels_vae, sample_size) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + + # encode the initial audio for use by the model + if initial_audio_waveforms is not None: + # check dimension + if initial_audio_waveforms.ndim == 2: + initial_audio_waveforms = initial_audio_waveforms.unsqueeze(1) + elif initial_audio_waveforms.ndim != 3: + raise ValueError( + f"`initial_audio_waveforms` must be of shape `(batch_size, num_channels, audio_length)` or `(batch_size, audio_length)` but has `{initial_audio_waveforms.ndim}` dimensions" + ) + + audio_vae_length = int(self.transformer.config.sample_size) * self.vae.hop_length + audio_shape = (batch_size // num_waveforms_per_prompt, audio_channels, audio_vae_length) + + # check num_channels + if initial_audio_waveforms.shape[1] == 1 and audio_channels == 2: + initial_audio_waveforms = initial_audio_waveforms.repeat(1, 2, 1) + elif initial_audio_waveforms.shape[1] == 2 and audio_channels == 1: + initial_audio_waveforms = initial_audio_waveforms.mean(1, keepdim=True) + + if initial_audio_waveforms.shape[:2] != audio_shape[:2]: + raise ValueError( + f"`initial_audio_waveforms` must be of shape `(batch_size, num_channels, audio_length)` or `(batch_size, audio_length)` but is of shape `{initial_audio_waveforms.shape}`" + ) + + # crop or pad + audio_length = initial_audio_waveforms.shape[-1] + if audio_length < audio_vae_length: + logger.warning( + f"The provided input waveform is shorter ({audio_length}) than the required audio length ({audio_vae_length}) of the model and will thus be padded." + ) + elif audio_length > audio_vae_length: + logger.warning( + f"The provided input waveform is longer ({audio_length}) than the required audio length ({audio_vae_length}) of the model and will thus be cropped." + ) + + audio = initial_audio_waveforms.new_zeros(audio_shape) + audio[:, :, : min(audio_length, audio_vae_length)] = initial_audio_waveforms[:, :, :audio_vae_length] + + encoded_audio = self.vae.encode(audio).latent_dist.sample(generator) + encoded_audio = encoded_audio.repeat((num_waveforms_per_prompt, 1, 1)) + latents = encoded_audio + latents + return latents + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + audio_end_in_s: Optional[float] = None, + audio_start_in_s: Optional[float] = 0.0, + num_inference_steps: int = 100, + guidance_scale: float = 7.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_waveforms_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + initial_audio_waveforms: Optional[torch.Tensor] = None, + initial_audio_sampling_rate: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + attention_mask: Optional[torch.LongTensor] = None, + negative_attention_mask: Optional[torch.LongTensor] = None, + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: Optional[int] = 1, + output_type: Optional[str] = "pt", + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide audio generation. If not defined, you need to pass `prompt_embeds`. + audio_end_in_s (`float`, *optional*, defaults to 47.55): + Audio end index in seconds. + audio_start_in_s (`float`, *optional*, defaults to 0): + Audio start index in seconds. + num_inference_steps (`int`, *optional*, defaults to 100): + The number of denoising steps. More denoising steps usually lead to a higher quality audio at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.0): + A higher guidance scale value encourages the model to generate audio that is closely linked to the text + `prompt` at the expense of lower sound quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in audio generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_waveforms_per_prompt (`int`, *optional*, defaults to 1): + The number of waveforms to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for audio + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + initial_audio_waveforms (`torch.Tensor`, *optional*): + Optional initial audio waveforms to use as the initial audio waveform for generation. Must be of shape + `(batch_size, num_channels, audio_length)` or `(batch_size, audio_length)`, where `batch_size` + corresponds to the number of prompts passed to the model. + initial_audio_sampling_rate (`int`, *optional*): + Sampling rate of the `initial_audio_waveforms`, if they are provided. Must be the same as the model. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-computed text embeddings from the text encoder model. Can be used to easily tweak text inputs, + *e.g.* prompt weighting. If not provided, text embeddings will be computed from `prompt` input + argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-computed negative text embeddings from the text encoder model. Can be used to easily tweak text + inputs, *e.g.* prompt weighting. If not provided, negative_prompt_embeds will be computed from + `negative_prompt` input argument. + attention_mask (`torch.LongTensor`, *optional*): + Pre-computed attention mask to be applied to the `prompt_embeds`. If not provided, attention mask will + be computed from `prompt` input argument. + negative_attention_mask (`torch.LongTensor`, *optional*): + Pre-computed attention mask to be applied to the `negative_text_audio_duration_embeds`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + output_type (`str`, *optional*, defaults to `"pt"`): + The output format of the generated audio. Choose between `"np"` to return a NumPy `np.ndarray` or + `"pt"` to return a PyTorch `torch.Tensor` object. Set to `"latent"` to return the latent diffusion + model (LDM) output. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated audio. + """ + # 0. Convert audio input length from seconds to latent length + downsample_ratio = self.vae.hop_length + + max_audio_length_in_s = self.transformer.config.sample_size * downsample_ratio / self.vae.config.sampling_rate + if audio_end_in_s is None: + audio_end_in_s = max_audio_length_in_s + + if audio_end_in_s - audio_start_in_s > max_audio_length_in_s: + raise ValueError( + f"The total audio length requested ({audio_end_in_s - audio_start_in_s}s) is longer than the model maximum possible length ({max_audio_length_in_s}). Make sure that 'audio_end_in_s-audio_start_in_s<={max_audio_length_in_s}'." + ) + + waveform_start = int(audio_start_in_s * self.vae.config.sampling_rate) + waveform_end = int(audio_end_in_s * self.vae.config.sampling_rate) + waveform_length = int(self.transformer.config.sample_size) + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + audio_start_in_s, + audio_end_in_s, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + attention_mask, + negative_attention_mask, + initial_audio_waveforms, + initial_audio_sampling_rate, + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + prompt_embeds = self.encode_prompt( + prompt, + device, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + attention_mask, + negative_attention_mask, + ) + + # Encode duration + seconds_start_hidden_states, seconds_end_hidden_states = self.encode_duration( + audio_start_in_s, + audio_end_in_s, + device, + do_classifier_free_guidance and (negative_prompt is not None or negative_prompt_embeds is not None), + batch_size, + ) + + # Create text_audio_duration_embeds and audio_duration_embeds + text_audio_duration_embeds = torch.cat( + [prompt_embeds, seconds_start_hidden_states, seconds_end_hidden_states], dim=1 + ) + + audio_duration_embeds = torch.cat([seconds_start_hidden_states, seconds_end_hidden_states], dim=2) + + # In case of classifier free guidance without negative prompt, we need to create unconditional embeddings and + # to concatenate it to the embeddings + if do_classifier_free_guidance and negative_prompt_embeds is None and negative_prompt is None: + negative_text_audio_duration_embeds = torch.zeros_like( + text_audio_duration_embeds, device=text_audio_duration_embeds.device + ) + text_audio_duration_embeds = torch.cat( + [negative_text_audio_duration_embeds, text_audio_duration_embeds], dim=0 + ) + audio_duration_embeds = torch.cat([audio_duration_embeds, audio_duration_embeds], dim=0) + + bs_embed, seq_len, hidden_size = text_audio_duration_embeds.shape + # duplicate audio_duration_embeds and text_audio_duration_embeds for each generation per prompt, using mps friendly method + text_audio_duration_embeds = text_audio_duration_embeds.repeat(1, num_waveforms_per_prompt, 1) + text_audio_duration_embeds = text_audio_duration_embeds.view( + bs_embed * num_waveforms_per_prompt, seq_len, hidden_size + ) + + audio_duration_embeds = audio_duration_embeds.repeat(1, num_waveforms_per_prompt, 1) + audio_duration_embeds = audio_duration_embeds.view( + bs_embed * num_waveforms_per_prompt, -1, audio_duration_embeds.shape[-1] + ) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_vae = self.transformer.config.in_channels + latents = self.prepare_latents( + batch_size * num_waveforms_per_prompt, + num_channels_vae, + waveform_length, + text_audio_duration_embeds.dtype, + device, + generator, + latents, + initial_audio_waveforms, + num_waveforms_per_prompt, + audio_channels=self.vae.config.audio_channels, + ) + + # 6. Prepare extra step kwargs + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7. Prepare rotary positional embedding + rotary_embedding = get_1d_rotary_pos_embed( + self.rotary_embed_dim, + latents.shape[2] + audio_duration_embeds.shape[1], + use_real=True, + repeat_interleave_real=False, + ) + + # 8. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.transformer( + latent_model_input, + t.unsqueeze(0), + encoder_hidden_states=text_audio_duration_embeds, + global_hidden_states=audio_duration_embeds, + rotary_embedding=rotary_embedding, + return_dict=False, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # 9. Post-processing + if not output_type == "latent": + audio = self.vae.decode(latents).sample + else: + return AudioPipelineOutput(audios=latents) + + audio = audio[:, :, waveform_start:waveform_end] + + if output_type == "np": + audio = audio.cpu().float().numpy() + + self.maybe_free_model_hooks() + + if not return_dict: + return (audio,) + + return AudioPipelineOutput(audios=audio) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..5270cb94af01fd94ed6c8e76c243a86cad8ec348 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/__init__.py @@ -0,0 +1,50 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_cascade"] = ["StableCascadeDecoderPipeline"] + _import_structure["pipeline_stable_cascade_combined"] = ["StableCascadeCombinedPipeline"] + _import_structure["pipeline_stable_cascade_prior"] = ["StableCascadePriorPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * # noqa F403 + else: + from .pipeline_stable_cascade import StableCascadeDecoderPipeline + from .pipeline_stable_cascade_combined import StableCascadeCombinedPipeline + from .pipeline_stable_cascade_prior import StableCascadePriorPipeline +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade.py new file mode 100644 index 0000000000000000000000000000000000000000..a6a60ad94be60571b737691cc1397047da3c68de --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade.py @@ -0,0 +1,541 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Callable, Dict, List, Optional, Union + +import torch +from transformers import CLIPTextModelWithProjection, CLIPTokenizer + +from ...models import StableCascadeUNet +from ...schedulers import DDPMWuerstchenScheduler +from ...utils import is_torch_version, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, ImagePipelineOutput +from ..wuerstchen.modeling_paella_vq_model import PaellaVQModel + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableCascadePriorPipeline, StableCascadeDecoderPipeline + + >>> prior_pipe = StableCascadePriorPipeline.from_pretrained( + ... "stabilityai/stable-cascade-prior", torch_dtype=torch.bfloat16 + ... ).to("cuda") + >>> gen_pipe = StableCascadeDecoderPipeline.from_pretrain( + ... "stabilityai/stable-cascade", torch_dtype=torch.float16 + ... ).to("cuda") + + >>> prompt = "an image of a shiba inu, donning a spacesuit and helmet" + >>> prior_output = pipe(prompt) + >>> images = gen_pipe(prior_output.image_embeddings, prompt=prompt) + ``` +""" + + +class StableCascadeDecoderPipeline(DeprecatedPipelineMixin, DiffusionPipeline): + """ + Pipeline for generating images from the Stable Cascade model. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + Args: + tokenizer (`CLIPTokenizer`): + The CLIP tokenizer. + text_encoder (`CLIPTextModelWithProjection`): + The CLIP text encoder. + decoder ([`StableCascadeUNet`]): + The Stable Cascade decoder unet. + vqgan ([`PaellaVQModel`]): + The VQGAN model. + scheduler ([`DDPMWuerstchenScheduler`]): + A scheduler to be used in combination with `prior` to generate image embedding. + latent_dim_scale (float, `optional`, defaults to 10.67): + Multiplier to determine the VQ latent space size from the image embeddings. If the image embeddings are + height=24 and width=24, the VQ latent shape needs to be height=int(24*10.67)=256 and + width=int(24*10.67)=256 in order to match the training conditions. + """ + + _last_supported_version = "0.35.2" + + unet_name = "decoder" + text_encoder_name = "text_encoder" + model_cpu_offload_seq = "text_encoder->decoder->vqgan" + _callback_tensor_inputs = [ + "latents", + "prompt_embeds_pooled", + "negative_prompt_embeds", + "image_embeddings", + ] + + def __init__( + self, + decoder: StableCascadeUNet, + tokenizer: CLIPTokenizer, + text_encoder: CLIPTextModelWithProjection, + scheduler: DDPMWuerstchenScheduler, + vqgan: PaellaVQModel, + latent_dim_scale: float = 10.67, + ) -> None: + super().__init__() + self.register_modules( + decoder=decoder, + tokenizer=tokenizer, + text_encoder=text_encoder, + scheduler=scheduler, + vqgan=vqgan, + ) + self.register_to_config(latent_dim_scale=latent_dim_scale) + + def prepare_latents( + self, batch_size, image_embeddings, num_images_per_prompt, dtype, device, generator, latents, scheduler + ): + _, channels, height, width = image_embeddings.shape + latents_shape = ( + batch_size * num_images_per_prompt, + 4, + int(height * self.config.latent_dim_scale), + int(width * self.config.latent_dim_scale), + ) + + if latents is None: + latents = randn_tensor(latents_shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != latents_shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {latents_shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def encode_prompt( + self, + device, + batch_size, + num_images_per_prompt, + do_classifier_free_guidance, + prompt=None, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + prompt_embeds_pooled: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds_pooled: Optional[torch.Tensor] = None, + ): + if prompt_embeds is None: + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + attention_mask = text_inputs.attention_mask + + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + text_input_ids = text_input_ids[:, : self.tokenizer.model_max_length] + attention_mask = attention_mask[:, : self.tokenizer.model_max_length] + + text_encoder_output = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask.to(device), output_hidden_states=True + ) + prompt_embeds = text_encoder_output.hidden_states[-1] + if prompt_embeds_pooled is None: + prompt_embeds_pooled = text_encoder_output.text_embeds.unsqueeze(1) + + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + prompt_embeds_pooled = prompt_embeds_pooled.to(dtype=self.text_encoder.dtype, device=device) + prompt_embeds = prompt_embeds.repeat_interleave(num_images_per_prompt, dim=0) + prompt_embeds_pooled = prompt_embeds_pooled.repeat_interleave(num_images_per_prompt, dim=0) + + if negative_prompt_embeds is None and do_classifier_free_guidance: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + negative_prompt_embeds_text_encoder_output = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=uncond_input.attention_mask.to(device), + output_hidden_states=True, + ) + + negative_prompt_embeds = negative_prompt_embeds_text_encoder_output.hidden_states[-1] + negative_prompt_embeds_pooled = negative_prompt_embeds_text_encoder_output.text_embeds.unsqueeze(1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + seq_len = negative_prompt_embeds_pooled.shape[1] + negative_prompt_embeds_pooled = negative_prompt_embeds_pooled.to( + dtype=self.text_encoder.dtype, device=device + ) + negative_prompt_embeds_pooled = negative_prompt_embeds_pooled.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds_pooled = negative_prompt_embeds_pooled.view( + batch_size * num_images_per_prompt, seq_len, -1 + ) + # done duplicates + + return prompt_embeds, prompt_embeds_pooled, negative_prompt_embeds, negative_prompt_embeds_pooled + + def check_inputs( + self, + prompt, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + def get_timestep_ratio_conditioning(self, t, alphas_cumprod): + s = torch.tensor([0.008]) + clamp_range = [0, 1] + min_var = torch.cos(s / (1 + s) * torch.pi * 0.5) ** 2 + var = alphas_cumprod[t] + var = var.clamp(*clamp_range) + s, min_var = s.to(var.device), min_var.to(var.device) + ratio = (((var * min_var) ** 0.5).acos() / (torch.pi * 0.5)) * (1 + s) - s + return ratio + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image_embeddings: Union[torch.Tensor, List[torch.Tensor]], + prompt: Union[str, List[str]] = None, + num_inference_steps: int = 10, + guidance_scale: float = 0.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + prompt_embeds_pooled: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds_pooled: Optional[torch.Tensor] = None, + num_images_per_prompt: int = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + ): + """ + Function invoked when calling the pipeline for generation. + + Args: + image_embedding (`torch.Tensor` or `List[torch.Tensor]`): + Image Embeddings either extracted from an image or generated by a Prior Model. + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation. + num_inference_steps (`int`, *optional*, defaults to 12): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 0.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `decoder_guidance_scale` is defined as `w` of + equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by + setting `decoder_guidance_scale > 1`. Higher guidance scale encourages to generate images that are + closely linked to the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `decoder_guidance_scale` is less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + prompt_embeds_pooled (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + negative_prompt_embeds_pooled (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds_pooled will be generated from `negative_prompt` + input argument. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between: `"pil"` (`PIL.Image.Image`), `"np"` + (`np.array`) or `"pt"` (`torch.Tensor`). + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.ImagePipelineOutput`] or `tuple` [`~pipelines.ImagePipelineOutput`] if `return_dict` is True, + otherwise a `tuple`. When returning a tuple, the first element is a list with the generated image + embeddings. + """ + + # 0. Define commonly used variables + device = self._execution_device + dtype = self.decoder.dtype + self._guidance_scale = guidance_scale + if is_torch_version("<", "2.2.0") and dtype == torch.bfloat16: + raise ValueError("`StableCascadeDecoderPipeline` requires torch>=2.2.0 when using `torch.bfloat16` dtype.") + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + ) + if isinstance(image_embeddings, list): + image_embeddings = torch.cat(image_embeddings, dim=0) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # Compute the effective number of images per prompt + # We must account for the fact that the image embeddings from the prior can be generated with num_images_per_prompt > 1 + # This results in a case where a single prompt is associated with multiple image embeddings + # Divide the number of image embeddings by the batch size to determine if this is the case. + num_images_per_prompt = num_images_per_prompt * (image_embeddings.shape[0] // batch_size) + + # 2. Encode caption + if prompt_embeds is None and negative_prompt_embeds is None: + _, prompt_embeds_pooled, _, negative_prompt_embeds_pooled = self.encode_prompt( + prompt=prompt, + device=device, + batch_size=batch_size, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + prompt_embeds_pooled=prompt_embeds_pooled, + negative_prompt_embeds=negative_prompt_embeds, + negative_prompt_embeds_pooled=negative_prompt_embeds_pooled, + ) + + # The pooled embeds from the prior are pooled again before being passed to the decoder + prompt_embeds_pooled = ( + torch.cat([prompt_embeds_pooled, negative_prompt_embeds_pooled]) + if self.do_classifier_free_guidance + else prompt_embeds_pooled + ) + effnet = ( + torch.cat([image_embeddings, torch.zeros_like(image_embeddings)]) + if self.do_classifier_free_guidance + else image_embeddings + ) + + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latents + latents = self.prepare_latents( + batch_size, image_embeddings, num_images_per_prompt, dtype, device, generator, latents, self.scheduler + ) + + if isinstance(self.scheduler, DDPMWuerstchenScheduler): + timesteps = timesteps[:-1] + else: + if hasattr(self.scheduler.config, "clip_sample") and self.scheduler.config.clip_sample: + self.scheduler.config.clip_sample = False # disample sample clipping + logger.warning(" set `clip_sample` to be False") + + # 6. Run denoising loop + if hasattr(self.scheduler, "betas"): + alphas = 1.0 - self.scheduler.betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + else: + alphas_cumprod = [] + + self._num_timesteps = len(timesteps) + for i, t in enumerate(self.progress_bar(timesteps)): + if not isinstance(self.scheduler, DDPMWuerstchenScheduler): + if len(alphas_cumprod) > 0: + timestep_ratio = self.get_timestep_ratio_conditioning(t.long().cpu(), alphas_cumprod) + timestep_ratio = timestep_ratio.expand(latents.size(0)).to(dtype).to(device) + else: + timestep_ratio = t.float().div(self.scheduler.timesteps[-1]).expand(latents.size(0)).to(dtype) + else: + timestep_ratio = t.expand(latents.size(0)).to(dtype) + + # 7. Denoise latents + predicted_latents = self.decoder( + sample=torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents, + timestep_ratio=torch.cat([timestep_ratio] * 2) if self.do_classifier_free_guidance else timestep_ratio, + clip_text_pooled=prompt_embeds_pooled, + effnet=effnet, + return_dict=False, + )[0] + + # 8. Check for classifier free guidance and apply it + if self.do_classifier_free_guidance: + predicted_latents_text, predicted_latents_uncond = predicted_latents.chunk(2) + predicted_latents = torch.lerp(predicted_latents_uncond, predicted_latents_text, self.guidance_scale) + + # 9. Renoise latents to next timestep + if not isinstance(self.scheduler, DDPMWuerstchenScheduler): + timestep_ratio = t + latents = self.scheduler.step( + model_output=predicted_latents, + timestep=timestep_ratio, + sample=latents, + generator=generator, + ).prev_sample + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + if XLA_AVAILABLE: + xm.mark_step() + + if output_type not in ["pt", "np", "pil", "latent"]: + raise ValueError( + f"Only the output types `pt`, `np`, `pil` and `latent` are supported not output_type={output_type}" + ) + + if not output_type == "latent": + # 10. Scale and decode the image latents with vq-vae + latents = self.vqgan.config.scale_factor * latents + images = self.vqgan.decode(latents).sample.clamp(0, 1) + if output_type == "np": + images = images.permute(0, 2, 3, 1).cpu().float().numpy() # float() as bfloat16-> numpy doesn't work + elif output_type == "pil": + images = images.permute(0, 2, 3, 1).cpu().float().numpy() # float() as bfloat16-> numpy doesn't work + images = self.numpy_to_pil(images) + else: + images = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return images + return ImagePipelineOutput(images) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade_combined.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade_combined.py new file mode 100644 index 0000000000000000000000000000000000000000..838b93faaa0ca097a04e06f5cff68e7a136b5442 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade_combined.py @@ -0,0 +1,321 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import Callable, Dict, List, Optional, Union + +import PIL +import torch +from transformers import CLIPImageProcessor, CLIPTextModelWithProjection, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...models import StableCascadeUNet +from ...schedulers import DDPMWuerstchenScheduler +from ...utils import is_torch_version, replace_example_docstring +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline +from ..wuerstchen.modeling_paella_vq_model import PaellaVQModel +from .pipeline_stable_cascade import StableCascadeDecoderPipeline +from .pipeline_stable_cascade_prior import StableCascadePriorPipeline + + +TEXT2IMAGE_EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableCascadeCombinedPipeline + + >>> pipe = StableCascadeCombinedPipeline.from_pretrained( + ... "stabilityai/stable-cascade", variant="bf16", torch_dtype=torch.bfloat16 + ... ) + >>> pipe.enable_model_cpu_offload() + >>> prompt = "an image of a shiba inu, donning a spacesuit and helmet" + >>> images = pipe(prompt=prompt) + ``` +""" + + +class StableCascadeCombinedPipeline(DeprecatedPipelineMixin, DiffusionPipeline): + """ + Combined Pipeline for text-to-image generation using Stable Cascade. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + Args: + tokenizer (`CLIPTokenizer`): + The decoder tokenizer to be used for text inputs. + text_encoder (`CLIPTextModelWithProjection`): + The decoder text encoder to be used for text inputs. + decoder (`StableCascadeUNet`): + The decoder model to be used for decoder image generation pipeline. + scheduler (`DDPMWuerstchenScheduler`): + The scheduler to be used for decoder image generation pipeline. + vqgan (`PaellaVQModel`): + The VQGAN model to be used for decoder image generation pipeline. + prior_prior (`StableCascadeUNet`): + The prior model to be used for prior pipeline. + prior_text_encoder (`CLIPTextModelWithProjection`): + The prior text encoder to be used for text inputs. + prior_tokenizer (`CLIPTokenizer`): + The prior tokenizer to be used for text inputs. + prior_scheduler (`DDPMWuerstchenScheduler`): + The scheduler to be used for prior pipeline. + prior_feature_extractor ([`~transformers.CLIPImageProcessor`]): + Model that extracts features from generated images to be used as inputs for the `image_encoder`. + prior_image_encoder ([`CLIPVisionModelWithProjection`]): + Frozen CLIP image-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + """ + + _last_supported_version = "0.35.2" + + _load_connected_pipes = True + _optional_components = ["prior_feature_extractor", "prior_image_encoder"] + + def __init__( + self, + tokenizer: CLIPTokenizer, + text_encoder: CLIPTextModelWithProjection, + decoder: StableCascadeUNet, + scheduler: DDPMWuerstchenScheduler, + vqgan: PaellaVQModel, + prior_prior: StableCascadeUNet, + prior_text_encoder: CLIPTextModelWithProjection, + prior_tokenizer: CLIPTokenizer, + prior_scheduler: DDPMWuerstchenScheduler, + prior_feature_extractor: Optional[CLIPImageProcessor] = None, + prior_image_encoder: Optional[CLIPVisionModelWithProjection] = None, + ): + super().__init__() + + self.register_modules( + text_encoder=text_encoder, + tokenizer=tokenizer, + decoder=decoder, + scheduler=scheduler, + vqgan=vqgan, + prior_text_encoder=prior_text_encoder, + prior_tokenizer=prior_tokenizer, + prior_prior=prior_prior, + prior_scheduler=prior_scheduler, + prior_feature_extractor=prior_feature_extractor, + prior_image_encoder=prior_image_encoder, + ) + self.prior_pipe = StableCascadePriorPipeline( + prior=prior_prior, + text_encoder=prior_text_encoder, + tokenizer=prior_tokenizer, + scheduler=prior_scheduler, + image_encoder=prior_image_encoder, + feature_extractor=prior_feature_extractor, + ) + self.decoder_pipe = StableCascadeDecoderPipeline( + text_encoder=text_encoder, + tokenizer=tokenizer, + decoder=decoder, + scheduler=scheduler, + vqgan=vqgan, + ) + + def enable_xformers_memory_efficient_attention(self, attention_op: Optional[Callable] = None): + self.decoder_pipe.enable_xformers_memory_efficient_attention(attention_op) + + def enable_model_cpu_offload(self, gpu_id: Optional[int] = None, device: Union[torch.device, str] = None): + r""" + Offloads all models to CPU using accelerate, reducing memory usage with a low impact on performance. Compared + to `enable_sequential_cpu_offload`, this method moves one whole model at a time to the GPU when its `forward` + method is called, and the model remains in GPU until the next model runs. Memory savings are lower than with + `enable_sequential_cpu_offload`, but performance is much better due to the iterative execution of the `unet`. + """ + self.prior_pipe.enable_model_cpu_offload(gpu_id=gpu_id, device=device) + self.decoder_pipe.enable_model_cpu_offload(gpu_id=gpu_id, device=device) + + def enable_sequential_cpu_offload(self, gpu_id: Optional[int] = None, device: Union[torch.device, str] = None): + r""" + Offloads all models (`unet`, `text_encoder`, `vae`, and `safety checker` state dicts) to CPU using 🤗 + Accelerate, significantly reducing memory usage. Models are moved to a `torch.device('meta')` and loaded on a + GPU only when their specific submodule's `forward` method is called. Offloading happens on a submodule basis. + Memory savings are higher than using `enable_model_cpu_offload`, but performance is lower. + """ + self.prior_pipe.enable_sequential_cpu_offload(gpu_id=gpu_id, device=device) + self.decoder_pipe.enable_sequential_cpu_offload(gpu_id=gpu_id, device=device) + + def progress_bar(self, iterable=None, total=None): + self.prior_pipe.progress_bar(iterable=iterable, total=total) + self.decoder_pipe.progress_bar(iterable=iterable, total=total) + + def set_progress_bar_config(self, **kwargs): + self.prior_pipe.set_progress_bar_config(**kwargs) + self.decoder_pipe.set_progress_bar_config(**kwargs) + + @torch.no_grad() + @replace_example_docstring(TEXT2IMAGE_EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Optional[Union[str, List[str]]] = None, + images: Union[torch.Tensor, PIL.Image.Image, List[torch.Tensor], List[PIL.Image.Image]] = None, + height: int = 512, + width: int = 512, + prior_num_inference_steps: int = 60, + prior_guidance_scale: float = 4.0, + num_inference_steps: int = 12, + decoder_guidance_scale: float = 0.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + prompt_embeds_pooled: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds_pooled: Optional[torch.Tensor] = None, + num_images_per_prompt: int = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + prior_callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + prior_callback_on_step_end_tensor_inputs: List[str] = ["latents"], + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + ): + """ + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation for the prior and decoder. + images (`torch.Tensor`, `PIL.Image.Image`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, *optional*): + The images to guide the image generation for the prior. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings for the prior. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, text embeddings will be generated from `prompt` input argument. + prompt_embeds_pooled (`torch.Tensor`, *optional*): + Pre-generated text embeddings for the prior. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings for the prior. Can be used to easily tweak text inputs, *e.g.* + prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` + input argument. + negative_prompt_embeds_pooled (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings for the prior. Can be used to easily tweak text inputs, *e.g.* + prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` + input argument. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + height (`int`, *optional*, defaults to 512): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to 512): + The width in pixels of the generated image. + prior_guidance_scale (`float`, *optional*, defaults to 4.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `prior_guidance_scale` is defined as `w` of + equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by + setting `prior_guidance_scale > 1`. Higher guidance scale encourages to generate images that are + closely linked to the text `prompt`, usually at the expense of lower image quality. + prior_num_inference_steps (`Union[int, Dict[float, int]]`, *optional*, defaults to 60): + The number of prior denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. For more specific timestep spacing, you can pass customized + `prior_timesteps` + num_inference_steps (`int`, *optional*, defaults to 12): + The number of decoder denoising steps. More denoising steps usually lead to a higher quality image at + the expense of slower inference. For more specific timestep spacing, you can pass customized + `timesteps` + decoder_guidance_scale (`float`, *optional*, defaults to 0.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between: `"pil"` (`PIL.Image.Image`), `"np"` + (`np.array`) or `"pt"` (`torch.Tensor`). + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + prior_callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `prior_callback_on_step_end(self: DiffusionPipeline, step: int, timestep: + int, callback_kwargs: Dict)`. + prior_callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `prior_callback_on_step_end` function. The tensors specified in the + list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in + the `._callback_tensor_inputs` attribute of your pipeline class. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.ImagePipelineOutput`] or `tuple` [`~pipelines.ImagePipelineOutput`] if `return_dict` is True, + otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + dtype = self.decoder_pipe.decoder.dtype + if is_torch_version("<", "2.2.0") and dtype == torch.bfloat16: + raise ValueError( + "`StableCascadeCombinedPipeline` requires torch>=2.2.0 when using `torch.bfloat16` dtype." + ) + + prior_outputs = self.prior_pipe( + prompt=prompt if prompt_embeds is None else None, + images=images, + height=height, + width=width, + num_inference_steps=prior_num_inference_steps, + guidance_scale=prior_guidance_scale, + negative_prompt=negative_prompt if negative_prompt_embeds is None else None, + prompt_embeds=prompt_embeds, + prompt_embeds_pooled=prompt_embeds_pooled, + negative_prompt_embeds=negative_prompt_embeds, + negative_prompt_embeds_pooled=negative_prompt_embeds_pooled, + num_images_per_prompt=num_images_per_prompt, + generator=generator, + latents=latents, + output_type="pt", + return_dict=True, + callback_on_step_end=prior_callback_on_step_end, + callback_on_step_end_tensor_inputs=prior_callback_on_step_end_tensor_inputs, + ) + image_embeddings = prior_outputs.image_embeddings + prompt_embeds = prior_outputs.get("prompt_embeds", None) + prompt_embeds_pooled = prior_outputs.get("prompt_embeds_pooled", None) + negative_prompt_embeds = prior_outputs.get("negative_prompt_embeds", None) + negative_prompt_embeds_pooled = prior_outputs.get("negative_prompt_embeds_pooled", None) + + outputs = self.decoder_pipe( + image_embeddings=image_embeddings, + prompt=prompt if prompt_embeds is None else None, + num_inference_steps=num_inference_steps, + guidance_scale=decoder_guidance_scale, + negative_prompt=negative_prompt if negative_prompt_embeds is None else None, + prompt_embeds=prompt_embeds, + prompt_embeds_pooled=prompt_embeds_pooled, + negative_prompt_embeds=negative_prompt_embeds, + negative_prompt_embeds_pooled=negative_prompt_embeds_pooled, + generator=generator, + output_type=output_type, + return_dict=return_dict, + callback_on_step_end=callback_on_step_end, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + ) + + return outputs diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade_prior.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade_prior.py new file mode 100644 index 0000000000000000000000000000000000000000..29ad8b5429d737aa495697b9fcc8a4edc7192811 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_cascade/pipeline_stable_cascade_prior.py @@ -0,0 +1,652 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from math import ceil +from typing import Callable, Dict, List, Optional, Union + +import numpy as np +import PIL +import torch +from transformers import CLIPImageProcessor, CLIPTextModelWithProjection, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...models import StableCascadeUNet +from ...schedulers import DDPMWuerstchenScheduler +from ...utils import BaseOutput, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +DEFAULT_STAGE_C_TIMESTEPS = list(np.linspace(1.0, 2 / 3, 20)) + list(np.linspace(2 / 3, 0.0, 11))[1:] + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableCascadePriorPipeline + + >>> prior_pipe = StableCascadePriorPipeline.from_pretrained( + ... "stabilityai/stable-cascade-prior", torch_dtype=torch.bfloat16 + ... ).to("cuda") + + >>> prompt = "an image of a shiba inu, donning a spacesuit and helmet" + >>> prior_output = pipe(prompt) + ``` +""" + + +@dataclass +class StableCascadePriorPipelineOutput(BaseOutput): + """ + Output class for WuerstchenPriorPipeline. + + Args: + image_embeddings (`torch.Tensor` or `np.ndarray`) + Prior image embeddings for text prompt + prompt_embeds (`torch.Tensor`): + Text embeddings for the prompt. + negative_prompt_embeds (`torch.Tensor`): + Text embeddings for the negative prompt. + """ + + image_embeddings: Union[torch.Tensor, np.ndarray] + prompt_embeds: Union[torch.Tensor, np.ndarray] + prompt_embeds_pooled: Union[torch.Tensor, np.ndarray] + negative_prompt_embeds: Union[torch.Tensor, np.ndarray] + negative_prompt_embeds_pooled: Union[torch.Tensor, np.ndarray] + + +class StableCascadePriorPipeline(DeprecatedPipelineMixin, DiffusionPipeline): + """ + Pipeline for generating image prior for Stable Cascade. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + Args: + prior ([`StableCascadeUNet`]): + The Stable Cascade prior to approximate the image embedding from the text and/or image embedding. + text_encoder ([`CLIPTextModelWithProjection`]): + Frozen text-encoder + ([laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k)). + feature_extractor ([`~transformers.CLIPImageProcessor`]): + Model that extracts features from generated images to be used as inputs for the `image_encoder`. + image_encoder ([`CLIPVisionModelWithProjection`]): + Frozen CLIP image-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + scheduler ([`DDPMWuerstchenScheduler`]): + A scheduler to be used in combination with `prior` to generate image embedding. + resolution_multiple ('float', *optional*, defaults to 42.67): + Default resolution for multiple images generated. + """ + + _last_supported_version = "0.35.2" + + unet_name = "prior" + text_encoder_name = "text_encoder" + model_cpu_offload_seq = "image_encoder->text_encoder->prior" + _optional_components = ["image_encoder", "feature_extractor"] + _callback_tensor_inputs = ["latents", "text_encoder_hidden_states", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: CLIPTokenizer, + text_encoder: CLIPTextModelWithProjection, + prior: StableCascadeUNet, + scheduler: DDPMWuerstchenScheduler, + resolution_multiple: float = 42.67, + feature_extractor: Optional[CLIPImageProcessor] = None, + image_encoder: Optional[CLIPVisionModelWithProjection] = None, + ) -> None: + super().__init__() + self.register_modules( + tokenizer=tokenizer, + text_encoder=text_encoder, + image_encoder=image_encoder, + feature_extractor=feature_extractor, + prior=prior, + scheduler=scheduler, + ) + self.register_to_config(resolution_multiple=resolution_multiple) + + def prepare_latents( + self, batch_size, height, width, num_images_per_prompt, dtype, device, generator, latents, scheduler + ): + latent_shape = ( + num_images_per_prompt * batch_size, + self.prior.config.in_channels, + ceil(height / self.config.resolution_multiple), + ceil(width / self.config.resolution_multiple), + ) + + if latents is None: + latents = randn_tensor(latent_shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != latent_shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {latent_shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def encode_prompt( + self, + device, + batch_size, + num_images_per_prompt, + do_classifier_free_guidance, + prompt=None, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + prompt_embeds_pooled: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds_pooled: Optional[torch.Tensor] = None, + ): + if prompt_embeds is None: + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + attention_mask = text_inputs.attention_mask + + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + text_input_ids = text_input_ids[:, : self.tokenizer.model_max_length] + attention_mask = attention_mask[:, : self.tokenizer.model_max_length] + + text_encoder_output = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask.to(device), output_hidden_states=True + ) + prompt_embeds = text_encoder_output.hidden_states[-1] + if prompt_embeds_pooled is None: + prompt_embeds_pooled = text_encoder_output.text_embeds.unsqueeze(1) + + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + prompt_embeds_pooled = prompt_embeds_pooled.to(dtype=self.text_encoder.dtype, device=device) + prompt_embeds = prompt_embeds.repeat_interleave(num_images_per_prompt, dim=0) + prompt_embeds_pooled = prompt_embeds_pooled.repeat_interleave(num_images_per_prompt, dim=0) + + if negative_prompt_embeds is None and do_classifier_free_guidance: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + negative_prompt_embeds_text_encoder_output = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=uncond_input.attention_mask.to(device), + output_hidden_states=True, + ) + + negative_prompt_embeds = negative_prompt_embeds_text_encoder_output.hidden_states[-1] + negative_prompt_embeds_pooled = negative_prompt_embeds_text_encoder_output.text_embeds.unsqueeze(1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + seq_len = negative_prompt_embeds_pooled.shape[1] + negative_prompt_embeds_pooled = negative_prompt_embeds_pooled.to( + dtype=self.text_encoder.dtype, device=device + ) + negative_prompt_embeds_pooled = negative_prompt_embeds_pooled.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds_pooled = negative_prompt_embeds_pooled.view( + batch_size * num_images_per_prompt, seq_len, -1 + ) + # done duplicates + + return prompt_embeds, prompt_embeds_pooled, negative_prompt_embeds, negative_prompt_embeds_pooled + + def encode_image(self, images, device, dtype, batch_size, num_images_per_prompt): + image_embeds = [] + for image in images: + image = self.feature_extractor(image, return_tensors="pt").pixel_values + image = image.to(device=device, dtype=dtype) + image_embed = self.image_encoder(image).image_embeds.unsqueeze(1) + image_embeds.append(image_embed) + image_embeds = torch.cat(image_embeds, dim=1) + + image_embeds = image_embeds.repeat(batch_size * num_images_per_prompt, 1, 1) + negative_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, negative_image_embeds + + def check_inputs( + self, + prompt, + images=None, + image_embeds=None, + negative_prompt=None, + prompt_embeds=None, + prompt_embeds_pooled=None, + negative_prompt_embeds=None, + negative_prompt_embeds_pooled=None, + callback_on_step_end_tensor_inputs=None, + ): + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and prompt_embeds_pooled is None: + raise ValueError( + "If `prompt_embeds` are provided, `prompt_embeds_pooled` must also be provided. Make sure to generate `prompt_embeds_pooled` from the same text encoder that was used to generate `prompt_embeds`" + ) + + if negative_prompt_embeds is not None and negative_prompt_embeds_pooled is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_prompt_embeds_pooled` must also be provided. Make sure to generate `prompt_embeds_pooled` from the same text encoder that was used to generate `prompt_embeds`" + ) + + if prompt_embeds_pooled is not None and negative_prompt_embeds_pooled is not None: + if prompt_embeds_pooled.shape != negative_prompt_embeds_pooled.shape: + raise ValueError( + "`prompt_embeds_pooled` and `negative_prompt_embeds_pooled` must have the same shape when passed" + f"directly, but got: `prompt_embeds_pooled` {prompt_embeds_pooled.shape} !=" + f"`negative_prompt_embeds_pooled` {negative_prompt_embeds_pooled.shape}." + ) + + if image_embeds is not None and images is not None: + raise ValueError( + f"Cannot forward both `images`: {images} and `image_embeds`: {image_embeds}. Please make sure to" + " only forward one of the two." + ) + + if images: + for i, image in enumerate(images): + if not isinstance(image, torch.Tensor) and not isinstance(image, PIL.Image.Image): + raise TypeError( + f"'images' must contain images of type 'torch.Tensor' or 'PIL.Image.Image, but got" + f"{type(image)} for image number {i}." + ) + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + def get_timestep_ratio_conditioning(self, t, alphas_cumprod): + s = torch.tensor([0.008]) + clamp_range = [0, 1] + min_var = torch.cos(s / (1 + s) * torch.pi * 0.5) ** 2 + var = alphas_cumprod[t] + var = var.clamp(*clamp_range) + s, min_var = s.to(var.device), min_var.to(var.device) + ratio = (((var * min_var) ** 0.5).acos() / (torch.pi * 0.5)) * (1 + s) - s + return ratio + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Optional[Union[str, List[str]]] = None, + images: Union[torch.Tensor, PIL.Image.Image, List[torch.Tensor], List[PIL.Image.Image]] = None, + height: int = 1024, + width: int = 1024, + num_inference_steps: int = 20, + timesteps: List[float] = None, + guidance_scale: float = 4.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + prompt_embeds_pooled: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds_pooled: Optional[torch.Tensor] = None, + image_embeds: Optional[torch.Tensor] = None, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pt", + return_dict: bool = True, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + ): + """ + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation. + height (`int`, *optional*, defaults to 1024): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to 1024): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 60): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 8.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `decoder_guidance_scale` is defined as `w` of + equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by + setting `decoder_guidance_scale > 1`. Higher guidance scale encourages to generate images that are + closely linked to the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `decoder_guidance_scale` is less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + prompt_embeds_pooled (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + negative_prompt_embeds_pooled (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds_pooled will be generated from `negative_prompt` + input argument. + image_embeds (`torch.Tensor`, *optional*): + Pre-generated image embeddings. Can be used to easily tweak image inputs, *e.g.* prompt weighting. If + not provided, image embeddings will be generated from `image` input argument if existing. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between: `"pil"` (`PIL.Image.Image`), `"np"` + (`np.array`) or `"pt"` (`torch.Tensor`). + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`StableCascadePriorPipelineOutput`] or `tuple` [`StableCascadePriorPipelineOutput`] if `return_dict` is + True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated image + embeddings. + """ + + # 0. Define commonly used variables + device = self._execution_device + dtype = next(self.prior.parameters()).dtype + self._guidance_scale = guidance_scale + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + images=images, + image_embeds=image_embeds, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + prompt_embeds_pooled=prompt_embeds_pooled, + negative_prompt_embeds=negative_prompt_embeds, + negative_prompt_embeds_pooled=negative_prompt_embeds_pooled, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + ) + + # 2. Encode caption + images + ( + prompt_embeds, + prompt_embeds_pooled, + negative_prompt_embeds, + negative_prompt_embeds_pooled, + ) = self.encode_prompt( + prompt=prompt, + device=device, + batch_size=batch_size, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + prompt_embeds_pooled=prompt_embeds_pooled, + negative_prompt_embeds=negative_prompt_embeds, + negative_prompt_embeds_pooled=negative_prompt_embeds_pooled, + ) + + if images is not None: + image_embeds_pooled, uncond_image_embeds_pooled = self.encode_image( + images=images, + device=device, + dtype=dtype, + batch_size=batch_size, + num_images_per_prompt=num_images_per_prompt, + ) + elif image_embeds is not None: + image_embeds_pooled = image_embeds.repeat(batch_size * num_images_per_prompt, 1, 1) + uncond_image_embeds_pooled = torch.zeros_like(image_embeds_pooled) + else: + image_embeds_pooled = torch.zeros( + batch_size * num_images_per_prompt, + 1, + self.prior.config.clip_image_in_channels, + device=device, + dtype=dtype, + ) + uncond_image_embeds_pooled = torch.zeros( + batch_size * num_images_per_prompt, + 1, + self.prior.config.clip_image_in_channels, + device=device, + dtype=dtype, + ) + + if self.do_classifier_free_guidance: + image_embeds = torch.cat([image_embeds_pooled, uncond_image_embeds_pooled], dim=0) + else: + image_embeds = image_embeds_pooled + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + text_encoder_hidden_states = ( + torch.cat([prompt_embeds, negative_prompt_embeds]) if negative_prompt_embeds is not None else prompt_embeds + ) + text_encoder_pooled = ( + torch.cat([prompt_embeds_pooled, negative_prompt_embeds_pooled]) + if negative_prompt_embeds is not None + else prompt_embeds_pooled + ) + + # 4. Prepare and set timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latents + latents = self.prepare_latents( + batch_size, height, width, num_images_per_prompt, dtype, device, generator, latents, self.scheduler + ) + + if isinstance(self.scheduler, DDPMWuerstchenScheduler): + timesteps = timesteps[:-1] + else: + if hasattr(self.scheduler.config, "clip_sample") and self.scheduler.config.clip_sample: + self.scheduler.config.clip_sample = False # disample sample clipping + logger.warning(" set `clip_sample` to be False") + # 6. Run denoising loop + if hasattr(self.scheduler, "betas"): + alphas = 1.0 - self.scheduler.betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + else: + alphas_cumprod = [] + + self._num_timesteps = len(timesteps) + for i, t in enumerate(self.progress_bar(timesteps)): + if not isinstance(self.scheduler, DDPMWuerstchenScheduler): + if len(alphas_cumprod) > 0: + timestep_ratio = self.get_timestep_ratio_conditioning(t.long().cpu(), alphas_cumprod) + timestep_ratio = timestep_ratio.expand(latents.size(0)).to(dtype).to(device) + else: + timestep_ratio = t.float().div(self.scheduler.timesteps[-1]).expand(latents.size(0)).to(dtype) + else: + timestep_ratio = t.expand(latents.size(0)).to(dtype) + # 7. Denoise image embeddings + predicted_image_embedding = self.prior( + sample=torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents, + timestep_ratio=torch.cat([timestep_ratio] * 2) if self.do_classifier_free_guidance else timestep_ratio, + clip_text_pooled=text_encoder_pooled, + clip_text=text_encoder_hidden_states, + clip_img=image_embeds, + return_dict=False, + )[0] + + # 8. Check for classifier free guidance and apply it + if self.do_classifier_free_guidance: + predicted_image_embedding_text, predicted_image_embedding_uncond = predicted_image_embedding.chunk(2) + predicted_image_embedding = torch.lerp( + predicted_image_embedding_uncond, predicted_image_embedding_text, self.guidance_scale + ) + + # 9. Renoise latents to next timestep + if not isinstance(self.scheduler, DDPMWuerstchenScheduler): + timestep_ratio = t + latents = self.scheduler.step( + model_output=predicted_image_embedding, timestep=timestep_ratio, sample=latents, generator=generator + ).prev_sample + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + if XLA_AVAILABLE: + xm.mark_step() + + # Offload all models + self.maybe_free_model_hooks() + + if output_type == "np": + latents = latents.cpu().float().numpy() # float() as bfloat16-> numpy doesn't work + prompt_embeds = prompt_embeds.cpu().float().numpy() # float() as bfloat16-> numpy doesn't work + negative_prompt_embeds = ( + negative_prompt_embeds.cpu().float().numpy() if negative_prompt_embeds is not None else None + ) # float() as bfloat16-> numpy doesn't work + + if not return_dict: + return ( + latents, + prompt_embeds, + prompt_embeds_pooled, + negative_prompt_embeds, + negative_prompt_embeds_pooled, + ) + + return StableCascadePriorPipelineOutput( + image_embeddings=latents, + prompt_embeds=prompt_embeds, + prompt_embeds_pooled=prompt_embeds_pooled, + negative_prompt_embeds=negative_prompt_embeds, + negative_prompt_embeds_pooled=negative_prompt_embeds_pooled, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/README.md b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/README.md new file mode 100644 index 0000000000000000000000000000000000000000..164baeb0a4d3b69c108d5957ae08a934b04b90c8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/README.md @@ -0,0 +1,176 @@ +# Stable Diffusion + +## Overview + +Stable Diffusion was proposed in [Stable Diffusion Announcement](https://stability.ai/blog/stable-diffusion-announcement) by Patrick Esser and Robin Rombach and the Stability AI team. + +The summary of the model is the following: + +*Stable Diffusion is a text-to-image model that will empower billions of people to create stunning art within seconds. It is a breakthrough in speed and quality meaning that it can run on consumer GPUs. You can see some of the amazing output that has been created by this model without pre or post-processing on this page. The model itself builds upon the work of the team at CompVis and Runway in their widely used latent diffusion model combined with insights from the conditional diffusion models by our lead generative AI developer Katherine Crowson, Dall-E 2 by Open AI, Imagen by Google Brain and many others. We are delighted that AI media generation is a cooperative field and hope it can continue this way to bring the gift of creativity to all.* + +## Tips: + +- Stable Diffusion has the same architecture as [Latent Diffusion](https://huggingface.co/papers/2112.10752) but uses a frozen CLIP Text Encoder instead of training the text encoder jointly with the diffusion model. +- An in-detail explanation of the Stable Diffusion model can be found under [Stable Diffusion with 🧨 Diffusers](https://huggingface.co/blog/stable_diffusion). +- If you don't want to rely on the Hugging Face Hub and having to pass a authentication token, you can +download the weights with `git lfs install; git clone https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5` and instead pass the local path to the cloned folder to `from_pretrained` as shown below. +- Stable Diffusion can work with a variety of different samplers as is shown below. + +## Available Pipelines: + +| Pipeline | Tasks | Colab +|---|---|:---:| +| [pipeline_stable_diffusion.py](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion.py) | *Text-to-Image Generation* | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/huggingface/notebooks/blob/main/diffusers/training_example.ipynb) +| [pipeline_stable_diffusion_img2img](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_img2img.py) | *Image-to-Image Text-Guided Generation* | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/huggingface/notebooks/blob/main/diffusers/image_2_image_using_diffusers.ipynb) +| [pipeline_stable_diffusion_inpaint](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_inpaint.py) | *Text-Guided Image Inpainting* | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/huggingface/notebooks/blob/main/diffusers/in_painting_with_stable_diffusion_using_diffusers.ipynb) + +## Examples: + +### Using Stable Diffusion without being logged into the Hub. + +If you want to download the model weights using a single Python line, you need to be logged in via `hf auth login`. + +```python +from diffusers import DiffusionPipeline + +pipeline = DiffusionPipeline.from_pretrained("stable-diffusion-v1-5/stable-diffusion-v1-5") +``` + +This however can make it difficult to build applications on top of `diffusers` as you will always have to pass the token around. A potential way to solve this issue is by downloading the weights to a local path `"./stable-diffusion-v1-5"`: + +``` +git lfs install +git clone https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5 +``` + +and simply passing the local path to `from_pretrained`: + +```python +from diffusers import StableDiffusionPipeline + +pipe = StableDiffusionPipeline.from_pretrained("./stable-diffusion-v1-5") +``` + +### Text-to-Image with default PLMS scheduler + +```python +# make sure you're logged in with `hf auth login` +from diffusers import StableDiffusionPipeline + +pipe = StableDiffusionPipeline.from_pretrained("stable-diffusion-v1-5/stable-diffusion-v1-5") +pipe = pipe.to("cuda") + +prompt = "a photo of an astronaut riding a horse on mars" +image = pipe(prompt).images[0] + +image.save("astronaut_rides_horse.png") +``` + +### Text-to-Image with DDIM scheduler + +```python +# make sure you're logged in with `hf auth login` +from diffusers import StableDiffusionPipeline, DDIMScheduler + +scheduler = DDIMScheduler.from_pretrained("CompVis/stable-diffusion-v1-4", subfolder="scheduler") + +pipe = StableDiffusionPipeline.from_pretrained( + "stable-diffusion-v1-5/stable-diffusion-v1-5", + scheduler=scheduler, +).to("cuda") + +prompt = "a photo of an astronaut riding a horse on mars" +image = pipe(prompt).images[0] + +image.save("astronaut_rides_horse.png") +``` + +### Text-to-Image with K-LMS scheduler + +```python +# make sure you're logged in with `hf auth login` +from diffusers import StableDiffusionPipeline, LMSDiscreteScheduler + +lms = LMSDiscreteScheduler.from_pretrained("CompVis/stable-diffusion-v1-4", subfolder="scheduler") + +pipe = StableDiffusionPipeline.from_pretrained( + "stable-diffusion-v1-5/stable-diffusion-v1-5", + scheduler=lms, +).to("cuda") + +prompt = "a photo of an astronaut riding a horse on mars" +image = pipe(prompt).images[0] + +image.save("astronaut_rides_horse.png") +``` + +### CycleDiffusion using Stable Diffusion and DDIM scheduler + +```python +import requests +import torch +from PIL import Image +from io import BytesIO + +from diffusers import CycleDiffusionPipeline, DDIMScheduler + + +# load the scheduler. CycleDiffusion only supports stochastic schedulers. + +# load the pipeline +# make sure you're logged in with `hf auth login` +model_id_or_path = "CompVis/stable-diffusion-v1-4" +scheduler = DDIMScheduler.from_pretrained(model_id_or_path, subfolder="scheduler") +pipe = CycleDiffusionPipeline.from_pretrained(model_id_or_path, scheduler=scheduler).to("cuda") + +# let's download an initial image +url = "https://raw.githubusercontent.com/ChenWu98/cycle-diffusion/main/data/dalle2/An%20astronaut%20riding%20a%20horse.png" +response = requests.get(url) +init_image = Image.open(BytesIO(response.content)).convert("RGB") +init_image = init_image.resize((512, 512)) +init_image.save("horse.png") + +# let's specify a prompt +source_prompt = "An astronaut riding a horse" +prompt = "An astronaut riding an elephant" + +# call the pipeline +image = pipe( + prompt=prompt, + source_prompt=source_prompt, + image=init_image, + num_inference_steps=100, + eta=0.1, + strength=0.8, + guidance_scale=2, + source_guidance_scale=1, +).images[0] + +image.save("horse_to_elephant.png") + +# let's try another example +# See more samples at the original repo: https://github.com/ChenWu98/cycle-diffusion +url = "https://raw.githubusercontent.com/ChenWu98/cycle-diffusion/main/data/dalle2/A%20black%20colored%20car.png" +response = requests.get(url) +init_image = Image.open(BytesIO(response.content)).convert("RGB") +init_image = init_image.resize((512, 512)) +init_image.save("black.png") + +source_prompt = "A black colored car" +prompt = "A blue colored car" + +# call the pipeline +torch.manual_seed(0) +image = pipe( + prompt=prompt, + source_prompt=source_prompt, + image=init_image, + num_inference_steps=100, + eta=0.1, + strength=0.85, + guidance_scale=3, + source_guidance_scale=1, +).images[0] + +image.save("black_to_blue.png") +``` diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..b05a3ce2a7c9d7b388d422268b77f306419e40a6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/__init__.py @@ -0,0 +1,195 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_flax_available, + is_k_diffusion_available, + is_k_diffusion_version, + is_onnx_available, + is_torch_available, + is_transformers_available, + is_transformers_version, +) + + +_dummy_objects = {} +_additional_imports = {} +_import_structure = {"pipeline_output": ["StableDiffusionPipelineOutput"]} + +if is_transformers_available() and is_flax_available(): + _import_structure["pipeline_output"].extend(["FlaxStableDiffusionPipelineOutput"]) +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["clip_image_project_model"] = ["CLIPImageProjection"] + _import_structure["pipeline_stable_diffusion"] = ["StableDiffusionPipeline"] + _import_structure["pipeline_stable_diffusion_img2img"] = ["StableDiffusionImg2ImgPipeline"] + _import_structure["pipeline_stable_diffusion_inpaint"] = ["StableDiffusionInpaintPipeline"] + _import_structure["pipeline_stable_diffusion_instruct_pix2pix"] = ["StableDiffusionInstructPix2PixPipeline"] + _import_structure["pipeline_stable_diffusion_latent_upscale"] = ["StableDiffusionLatentUpscalePipeline"] + _import_structure["pipeline_stable_diffusion_upscale"] = ["StableDiffusionUpscalePipeline"] + _import_structure["pipeline_stable_unclip"] = ["StableUnCLIPPipeline"] + _import_structure["pipeline_stable_unclip_img2img"] = ["StableUnCLIPImg2ImgPipeline"] + _import_structure["safety_checker"] = ["StableDiffusionSafetyChecker"] + _import_structure["stable_unclip_image_normalizer"] = ["StableUnCLIPImageNormalizer"] +try: + if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.25.0")): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import ( + StableDiffusionImageVariationPipeline, + ) + + _dummy_objects.update({"StableDiffusionImageVariationPipeline": StableDiffusionImageVariationPipeline}) +else: + _import_structure["pipeline_stable_diffusion_image_variation"] = ["StableDiffusionImageVariationPipeline"] +try: + if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.26.0")): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import ( + StableDiffusionDepth2ImgPipeline, + ) + + _dummy_objects.update( + { + "StableDiffusionDepth2ImgPipeline": StableDiffusionDepth2ImgPipeline, + } + ) +else: + _import_structure["pipeline_stable_diffusion_depth2img"] = ["StableDiffusionDepth2ImgPipeline"] + +try: + if not (is_transformers_available() and is_onnx_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_onnx_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_onnx_objects)) +else: + _import_structure["pipeline_onnx_stable_diffusion"] = [ + "OnnxStableDiffusionPipeline", + "StableDiffusionOnnxPipeline", + ] + _import_structure["pipeline_onnx_stable_diffusion_img2img"] = ["OnnxStableDiffusionImg2ImgPipeline"] + _import_structure["pipeline_onnx_stable_diffusion_inpaint"] = ["OnnxStableDiffusionInpaintPipeline"] + _import_structure["pipeline_onnx_stable_diffusion_inpaint_legacy"] = ["OnnxStableDiffusionInpaintPipelineLegacy"] + _import_structure["pipeline_onnx_stable_diffusion_upscale"] = ["OnnxStableDiffusionUpscalePipeline"] + +if is_transformers_available() and is_flax_available(): + from ...schedulers.scheduling_pndm_flax import PNDMSchedulerState + + _additional_imports.update({"PNDMSchedulerState": PNDMSchedulerState}) + _import_structure["pipeline_flax_stable_diffusion"] = ["FlaxStableDiffusionPipeline"] + _import_structure["pipeline_flax_stable_diffusion_img2img"] = ["FlaxStableDiffusionImg2ImgPipeline"] + _import_structure["pipeline_flax_stable_diffusion_inpaint"] = ["FlaxStableDiffusionInpaintPipeline"] + _import_structure["safety_checker_flax"] = ["FlaxStableDiffusionSafetyChecker"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + + else: + from .clip_image_project_model import CLIPImageProjection + from .pipeline_stable_diffusion import ( + StableDiffusionPipeline, + StableDiffusionPipelineOutput, + ) + from .pipeline_stable_diffusion_img2img import StableDiffusionImg2ImgPipeline + from .pipeline_stable_diffusion_inpaint import StableDiffusionInpaintPipeline + from .pipeline_stable_diffusion_instruct_pix2pix import ( + StableDiffusionInstructPix2PixPipeline, + ) + from .pipeline_stable_diffusion_latent_upscale import ( + StableDiffusionLatentUpscalePipeline, + ) + from .pipeline_stable_diffusion_upscale import StableDiffusionUpscalePipeline + from .pipeline_stable_unclip import StableUnCLIPPipeline + from .pipeline_stable_unclip_img2img import StableUnCLIPImg2ImgPipeline + from .safety_checker import StableDiffusionSafetyChecker + from .stable_unclip_image_normalizer import StableUnCLIPImageNormalizer + + try: + if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.25.0")): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import ( + StableDiffusionImageVariationPipeline, + ) + else: + from .pipeline_stable_diffusion_image_variation import ( + StableDiffusionImageVariationPipeline, + ) + + try: + if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.26.0")): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import StableDiffusionDepth2ImgPipeline + else: + from .pipeline_stable_diffusion_depth2img import ( + StableDiffusionDepth2ImgPipeline, + ) + + try: + if not (is_transformers_available() and is_onnx_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_onnx_objects import * + else: + from .pipeline_onnx_stable_diffusion import ( + OnnxStableDiffusionPipeline, + StableDiffusionOnnxPipeline, + ) + from .pipeline_onnx_stable_diffusion_img2img import ( + OnnxStableDiffusionImg2ImgPipeline, + ) + from .pipeline_onnx_stable_diffusion_inpaint import ( + OnnxStableDiffusionInpaintPipeline, + ) + from .pipeline_onnx_stable_diffusion_upscale import ( + OnnxStableDiffusionUpscalePipeline, + ) + + try: + if not (is_transformers_available() and is_flax_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_flax_objects import * + else: + from .pipeline_flax_stable_diffusion import FlaxStableDiffusionPipeline + from .pipeline_flax_stable_diffusion_img2img import ( + FlaxStableDiffusionImg2ImgPipeline, + ) + from .pipeline_flax_stable_diffusion_inpaint import ( + FlaxStableDiffusionInpaintPipeline, + ) + from .pipeline_output import FlaxStableDiffusionPipelineOutput + from .safety_checker_flax import FlaxStableDiffusionSafetyChecker + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) + for name, value in _additional_imports.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/clip_image_project_model.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/clip_image_project_model.py new file mode 100644 index 0000000000000000000000000000000000000000..30dd90242d07d249e62e976c148a9d2cde02271e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/clip_image_project_model.py @@ -0,0 +1,29 @@ +# Copyright 2025 The GLIGEN Authors and HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from torch import nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models.modeling_utils import ModelMixin + + +class CLIPImageProjection(ModelMixin, ConfigMixin): + @register_to_config + def __init__(self, hidden_size: int = 768): + super().__init__() + self.hidden_size = hidden_size + self.project = nn.Linear(self.hidden_size, self.hidden_size, bias=False) + + def forward(self, x): + return self.project(x) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/convert_from_ckpt.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/convert_from_ckpt.py new file mode 100644 index 0000000000000000000000000000000000000000..6c0221d2092a46dfac6129ab5bbe783c753ab97c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/convert_from_ckpt.py @@ -0,0 +1,1877 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Conversion script for the Stable Diffusion checkpoints.""" + +import re +from contextlib import nullcontext +from io import BytesIO +from typing import Dict, Optional, Union + +import requests +import torch +import yaml +from transformers import ( + AutoFeatureExtractor, + BertTokenizerFast, + CLIPImageProcessor, + CLIPTextConfig, + CLIPTextModel, + CLIPTextModelWithProjection, + CLIPTokenizer, + CLIPVisionConfig, + CLIPVisionModelWithProjection, +) + +from ...models import ( + AutoencoderKL, + ControlNetModel, + PriorTransformer, + UNet2DConditionModel, +) +from ...schedulers import ( + DDIMScheduler, + DDPMScheduler, + DPMSolverMultistepScheduler, + EulerAncestralDiscreteScheduler, + EulerDiscreteScheduler, + HeunDiscreteScheduler, + LMSDiscreteScheduler, + PNDMScheduler, + UnCLIPScheduler, +) +from ...utils import is_accelerate_available, logging +from ...utils.constants import DIFFUSERS_REQUEST_TIMEOUT +from ...utils.torch_utils import get_device +from ..latent_diffusion.pipeline_latent_diffusion import LDMBertConfig, LDMBertModel +from ..paint_by_example import PaintByExampleImageEncoder +from ..pipeline_utils import DiffusionPipeline +from .safety_checker import StableDiffusionSafetyChecker +from .stable_unclip_image_normalizer import StableUnCLIPImageNormalizer + + +if is_accelerate_available(): + from accelerate import init_empty_weights + from accelerate.utils import set_module_tensor_to_device + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +def shave_segments(path, n_shave_prefix_segments=1): + """ + Removes segments. Positive values shave the first segments, negative shave the last segments. + """ + if n_shave_prefix_segments >= 0: + return ".".join(path.split(".")[n_shave_prefix_segments:]) + else: + return ".".join(path.split(".")[:n_shave_prefix_segments]) + + +def renew_resnet_paths(old_list, n_shave_prefix_segments=0): + """ + Updates paths inside resnets to the new naming scheme (local renaming) + """ + mapping = [] + for old_item in old_list: + new_item = old_item.replace("in_layers.0", "norm1") + new_item = new_item.replace("in_layers.2", "conv1") + + new_item = new_item.replace("out_layers.0", "norm2") + new_item = new_item.replace("out_layers.3", "conv2") + + new_item = new_item.replace("emb_layers.1", "time_emb_proj") + new_item = new_item.replace("skip_connection", "conv_shortcut") + + new_item = shave_segments(new_item, n_shave_prefix_segments=n_shave_prefix_segments) + + mapping.append({"old": old_item, "new": new_item}) + + return mapping + + +def renew_vae_resnet_paths(old_list, n_shave_prefix_segments=0): + """ + Updates paths inside resnets to the new naming scheme (local renaming) + """ + mapping = [] + for old_item in old_list: + new_item = old_item + + new_item = new_item.replace("nin_shortcut", "conv_shortcut") + new_item = shave_segments(new_item, n_shave_prefix_segments=n_shave_prefix_segments) + + mapping.append({"old": old_item, "new": new_item}) + + return mapping + + +def renew_attention_paths(old_list, n_shave_prefix_segments=0): + """ + Updates paths inside attentions to the new naming scheme (local renaming) + """ + mapping = [] + for old_item in old_list: + new_item = old_item + + # new_item = new_item.replace('norm.weight', 'group_norm.weight') + # new_item = new_item.replace('norm.bias', 'group_norm.bias') + + # new_item = new_item.replace('proj_out.weight', 'proj_attn.weight') + # new_item = new_item.replace('proj_out.bias', 'proj_attn.bias') + + # new_item = shave_segments(new_item, n_shave_prefix_segments=n_shave_prefix_segments) + + mapping.append({"old": old_item, "new": new_item}) + + return mapping + + +def renew_vae_attention_paths(old_list, n_shave_prefix_segments=0): + """ + Updates paths inside attentions to the new naming scheme (local renaming) + """ + mapping = [] + for old_item in old_list: + new_item = old_item + + new_item = new_item.replace("norm.weight", "group_norm.weight") + new_item = new_item.replace("norm.bias", "group_norm.bias") + + new_item = new_item.replace("q.weight", "to_q.weight") + new_item = new_item.replace("q.bias", "to_q.bias") + + new_item = new_item.replace("k.weight", "to_k.weight") + new_item = new_item.replace("k.bias", "to_k.bias") + + new_item = new_item.replace("v.weight", "to_v.weight") + new_item = new_item.replace("v.bias", "to_v.bias") + + new_item = new_item.replace("proj_out.weight", "to_out.0.weight") + new_item = new_item.replace("proj_out.bias", "to_out.0.bias") + + new_item = shave_segments(new_item, n_shave_prefix_segments=n_shave_prefix_segments) + + mapping.append({"old": old_item, "new": new_item}) + + return mapping + + +def assign_to_checkpoint( + paths, checkpoint, old_checkpoint, attention_paths_to_split=None, additional_replacements=None, config=None +): + """ + This does the final conversion step: take locally converted weights and apply a global renaming to them. It splits + attention layers, and takes into account additional replacements that may arise. + + Assigns the weights to the new checkpoint. + """ + assert isinstance(paths, list), "Paths should be a list of dicts containing 'old' and 'new' keys." + + # Splits the attention layers into three variables. + if attention_paths_to_split is not None: + for path, path_map in attention_paths_to_split.items(): + old_tensor = old_checkpoint[path] + channels = old_tensor.shape[0] // 3 + + target_shape = (-1, channels) if len(old_tensor.shape) == 3 else (-1) + + num_heads = old_tensor.shape[0] // config["num_head_channels"] // 3 + + old_tensor = old_tensor.reshape((num_heads, 3 * channels // num_heads) + old_tensor.shape[1:]) + query, key, value = old_tensor.split(channels // num_heads, dim=1) + + checkpoint[path_map["query"]] = query.reshape(target_shape) + checkpoint[path_map["key"]] = key.reshape(target_shape) + checkpoint[path_map["value"]] = value.reshape(target_shape) + + for path in paths: + new_path = path["new"] + + # These have already been assigned + if attention_paths_to_split is not None and new_path in attention_paths_to_split: + continue + + # Global renaming happens here + new_path = new_path.replace("middle_block.0", "mid_block.resnets.0") + new_path = new_path.replace("middle_block.1", "mid_block.attentions.0") + new_path = new_path.replace("middle_block.2", "mid_block.resnets.1") + + if additional_replacements is not None: + for replacement in additional_replacements: + new_path = new_path.replace(replacement["old"], replacement["new"]) + + # proj_attn.weight has to be converted from conv 1D to linear + is_attn_weight = "proj_attn.weight" in new_path or ("attentions" in new_path and "to_" in new_path) + shape = old_checkpoint[path["old"]].shape + if is_attn_weight and len(shape) == 3: + checkpoint[new_path] = old_checkpoint[path["old"]][:, :, 0] + elif is_attn_weight and len(shape) == 4: + checkpoint[new_path] = old_checkpoint[path["old"]][:, :, 0, 0] + else: + checkpoint[new_path] = old_checkpoint[path["old"]] + + +def conv_attn_to_linear(checkpoint): + keys = list(checkpoint.keys()) + attn_keys = ["query.weight", "key.weight", "value.weight"] + for key in keys: + if ".".join(key.split(".")[-2:]) in attn_keys: + if checkpoint[key].ndim > 2: + checkpoint[key] = checkpoint[key][:, :, 0, 0] + elif "proj_attn.weight" in key: + if checkpoint[key].ndim > 2: + checkpoint[key] = checkpoint[key][:, :, 0] + + +def create_unet_diffusers_config(original_config, image_size: int, controlnet=False): + """ + Creates a config for the diffusers based on the config of the LDM model. + """ + if controlnet: + unet_params = original_config["model"]["params"]["control_stage_config"]["params"] + else: + if ( + "unet_config" in original_config["model"]["params"] + and original_config["model"]["params"]["unet_config"] is not None + ): + unet_params = original_config["model"]["params"]["unet_config"]["params"] + else: + unet_params = original_config["model"]["params"]["network_config"]["params"] + + vae_params = original_config["model"]["params"]["first_stage_config"]["params"]["ddconfig"] + + block_out_channels = [unet_params["model_channels"] * mult for mult in unet_params["channel_mult"]] + + down_block_types = [] + resolution = 1 + for i in range(len(block_out_channels)): + block_type = "CrossAttnDownBlock2D" if resolution in unet_params["attention_resolutions"] else "DownBlock2D" + down_block_types.append(block_type) + if i != len(block_out_channels) - 1: + resolution *= 2 + + up_block_types = [] + for i in range(len(block_out_channels)): + block_type = "CrossAttnUpBlock2D" if resolution in unet_params["attention_resolutions"] else "UpBlock2D" + up_block_types.append(block_type) + resolution //= 2 + + if unet_params["transformer_depth"] is not None: + transformer_layers_per_block = ( + unet_params["transformer_depth"] + if isinstance(unet_params["transformer_depth"], int) + else list(unet_params["transformer_depth"]) + ) + else: + transformer_layers_per_block = 1 + + vae_scale_factor = 2 ** (len(vae_params["ch_mult"]) - 1) + + head_dim = unet_params["num_heads"] if "num_heads" in unet_params else None + use_linear_projection = ( + unet_params["use_linear_in_transformer"] if "use_linear_in_transformer" in unet_params else False + ) + if use_linear_projection: + # stable diffusion 2-base-512 and 2-768 + if head_dim is None: + head_dim_mult = unet_params["model_channels"] // unet_params["num_head_channels"] + head_dim = [head_dim_mult * c for c in list(unet_params["channel_mult"])] + + class_embed_type = None + addition_embed_type = None + addition_time_embed_dim = None + projection_class_embeddings_input_dim = None + context_dim = None + + if unet_params["context_dim"] is not None: + context_dim = ( + unet_params["context_dim"] + if isinstance(unet_params["context_dim"], int) + else unet_params["context_dim"][0] + ) + + if "num_classes" in unet_params: + if unet_params["num_classes"] == "sequential": + if context_dim in [2048, 1280]: + # SDXL + addition_embed_type = "text_time" + addition_time_embed_dim = 256 + else: + class_embed_type = "projection" + assert "adm_in_channels" in unet_params + projection_class_embeddings_input_dim = unet_params["adm_in_channels"] + + config = { + "sample_size": image_size // vae_scale_factor, + "in_channels": unet_params["in_channels"], + "down_block_types": tuple(down_block_types), + "block_out_channels": tuple(block_out_channels), + "layers_per_block": unet_params["num_res_blocks"], + "cross_attention_dim": context_dim, + "attention_head_dim": head_dim, + "use_linear_projection": use_linear_projection, + "class_embed_type": class_embed_type, + "addition_embed_type": addition_embed_type, + "addition_time_embed_dim": addition_time_embed_dim, + "projection_class_embeddings_input_dim": projection_class_embeddings_input_dim, + "transformer_layers_per_block": transformer_layers_per_block, + } + + if "disable_self_attentions" in unet_params: + config["only_cross_attention"] = unet_params["disable_self_attentions"] + + if "num_classes" in unet_params and isinstance(unet_params["num_classes"], int): + config["num_class_embeds"] = unet_params["num_classes"] + + if controlnet: + config["conditioning_channels"] = unet_params["hint_channels"] + else: + config["out_channels"] = unet_params["out_channels"] + config["up_block_types"] = tuple(up_block_types) + + return config + + +def create_vae_diffusers_config(original_config, image_size: int): + """ + Creates a config for the diffusers based on the config of the LDM model. + """ + vae_params = original_config["model"]["params"]["first_stage_config"]["params"]["ddconfig"] + _ = original_config["model"]["params"]["first_stage_config"]["params"]["embed_dim"] + + block_out_channels = [vae_params["ch"] * mult for mult in vae_params["ch_mult"]] + down_block_types = [ + "DownEncoderBlock2D" if image_size // 2**i not in vae_params["attn_resolutions"] else "AttnDownEncoderBlock2D" + for i, _ in enumerate(block_out_channels) + ] + up_block_types = [ + "UpDecoderBlock2D" if image_size // 2**i not in vae_params["attn_resolutions"] else "AttnUpDecoderBlock2D" + for i, _ in enumerate(block_out_channels) + ][::-1] + + config = { + "sample_size": image_size, + "in_channels": vae_params["in_channels"], + "out_channels": vae_params["out_ch"], + "down_block_types": tuple(down_block_types), + "up_block_types": tuple(up_block_types), + "block_out_channels": tuple(block_out_channels), + "latent_channels": vae_params["z_channels"], + "layers_per_block": vae_params["num_res_blocks"], + } + return config + + +def create_diffusers_schedular(original_config): + schedular = DDIMScheduler( + num_train_timesteps=original_config["model"]["params"]["timesteps"], + beta_start=original_config["model"]["params"]["linear_start"], + beta_end=original_config["model"]["params"]["linear_end"], + beta_schedule="scaled_linear", + ) + return schedular + + +def create_ldm_bert_config(original_config): + bert_params = original_config["model"]["params"]["cond_stage_config"]["params"] + config = LDMBertConfig( + d_model=bert_params.n_embed, + encoder_layers=bert_params.n_layer, + encoder_ffn_dim=bert_params.n_embed * 4, + ) + return config + + +def convert_ldm_unet_checkpoint( + checkpoint, config, path=None, extract_ema=False, controlnet=False, skip_extract_state_dict=False +): + """ + Takes a state dict and a config, and returns a converted checkpoint. + """ + + if skip_extract_state_dict: + unet_state_dict = checkpoint + else: + # extract state_dict for UNet + unet_state_dict = {} + keys = list(checkpoint.keys()) + + if controlnet: + unet_key = "control_model." + else: + unet_key = "model.diffusion_model." + + # at least a 100 parameters have to start with `model_ema` in order for the checkpoint to be EMA + if sum(k.startswith("model_ema") for k in keys) > 100 and extract_ema: + logger.warning(f"Checkpoint {path} has both EMA and non-EMA weights.") + logger.warning( + "In this conversion only the EMA weights are extracted. If you want to instead extract the non-EMA" + " weights (useful to continue fine-tuning), please make sure to remove the `--extract_ema` flag." + ) + for key in keys: + if key.startswith("model.diffusion_model"): + flat_ema_key = "model_ema." + "".join(key.split(".")[1:]) + unet_state_dict[key.replace(unet_key, "")] = checkpoint.pop(flat_ema_key) + else: + if sum(k.startswith("model_ema") for k in keys) > 100: + logger.warning( + "In this conversion only the non-EMA weights are extracted. If you want to instead extract the EMA" + " weights (usually better for inference), please make sure to add the `--extract_ema` flag." + ) + + for key in keys: + if key.startswith(unet_key): + unet_state_dict[key.replace(unet_key, "")] = checkpoint.pop(key) + + new_checkpoint = {} + + new_checkpoint["time_embedding.linear_1.weight"] = unet_state_dict["time_embed.0.weight"] + new_checkpoint["time_embedding.linear_1.bias"] = unet_state_dict["time_embed.0.bias"] + new_checkpoint["time_embedding.linear_2.weight"] = unet_state_dict["time_embed.2.weight"] + new_checkpoint["time_embedding.linear_2.bias"] = unet_state_dict["time_embed.2.bias"] + + if config["class_embed_type"] is None: + # No parameters to port + ... + elif config["class_embed_type"] == "timestep" or config["class_embed_type"] == "projection": + new_checkpoint["class_embedding.linear_1.weight"] = unet_state_dict["label_emb.0.0.weight"] + new_checkpoint["class_embedding.linear_1.bias"] = unet_state_dict["label_emb.0.0.bias"] + new_checkpoint["class_embedding.linear_2.weight"] = unet_state_dict["label_emb.0.2.weight"] + new_checkpoint["class_embedding.linear_2.bias"] = unet_state_dict["label_emb.0.2.bias"] + else: + raise NotImplementedError(f"Not implemented `class_embed_type`: {config['class_embed_type']}") + + if config["addition_embed_type"] == "text_time": + new_checkpoint["add_embedding.linear_1.weight"] = unet_state_dict["label_emb.0.0.weight"] + new_checkpoint["add_embedding.linear_1.bias"] = unet_state_dict["label_emb.0.0.bias"] + new_checkpoint["add_embedding.linear_2.weight"] = unet_state_dict["label_emb.0.2.weight"] + new_checkpoint["add_embedding.linear_2.bias"] = unet_state_dict["label_emb.0.2.bias"] + + # Relevant to StableDiffusionUpscalePipeline + if "num_class_embeds" in config: + if (config["num_class_embeds"] is not None) and ("label_emb.weight" in unet_state_dict): + new_checkpoint["class_embedding.weight"] = unet_state_dict["label_emb.weight"] + + new_checkpoint["conv_in.weight"] = unet_state_dict["input_blocks.0.0.weight"] + new_checkpoint["conv_in.bias"] = unet_state_dict["input_blocks.0.0.bias"] + + if not controlnet: + new_checkpoint["conv_norm_out.weight"] = unet_state_dict["out.0.weight"] + new_checkpoint["conv_norm_out.bias"] = unet_state_dict["out.0.bias"] + new_checkpoint["conv_out.weight"] = unet_state_dict["out.2.weight"] + new_checkpoint["conv_out.bias"] = unet_state_dict["out.2.bias"] + + # Retrieves the keys for the input blocks only + num_input_blocks = len({".".join(layer.split(".")[:2]) for layer in unet_state_dict if "input_blocks" in layer}) + input_blocks = { + layer_id: [key for key in unet_state_dict if f"input_blocks.{layer_id}" in key] + for layer_id in range(num_input_blocks) + } + + # Retrieves the keys for the middle blocks only + num_middle_blocks = len({".".join(layer.split(".")[:2]) for layer in unet_state_dict if "middle_block" in layer}) + middle_blocks = { + layer_id: [key for key in unet_state_dict if f"middle_block.{layer_id}" in key] + for layer_id in range(num_middle_blocks) + } + + # Retrieves the keys for the output blocks only + num_output_blocks = len({".".join(layer.split(".")[:2]) for layer in unet_state_dict if "output_blocks" in layer}) + output_blocks = { + layer_id: [key for key in unet_state_dict if f"output_blocks.{layer_id}" in key] + for layer_id in range(num_output_blocks) + } + + for i in range(1, num_input_blocks): + block_id = (i - 1) // (config["layers_per_block"] + 1) + layer_in_block_id = (i - 1) % (config["layers_per_block"] + 1) + + resnets = [ + key for key in input_blocks[i] if f"input_blocks.{i}.0" in key and f"input_blocks.{i}.0.op" not in key + ] + attentions = [key for key in input_blocks[i] if f"input_blocks.{i}.1" in key] + + if f"input_blocks.{i}.0.op.weight" in unet_state_dict: + new_checkpoint[f"down_blocks.{block_id}.downsamplers.0.conv.weight"] = unet_state_dict.pop( + f"input_blocks.{i}.0.op.weight" + ) + new_checkpoint[f"down_blocks.{block_id}.downsamplers.0.conv.bias"] = unet_state_dict.pop( + f"input_blocks.{i}.0.op.bias" + ) + + paths = renew_resnet_paths(resnets) + meta_path = {"old": f"input_blocks.{i}.0", "new": f"down_blocks.{block_id}.resnets.{layer_in_block_id}"} + assign_to_checkpoint( + paths, new_checkpoint, unet_state_dict, additional_replacements=[meta_path], config=config + ) + + if len(attentions): + paths = renew_attention_paths(attentions) + + meta_path = {"old": f"input_blocks.{i}.1", "new": f"down_blocks.{block_id}.attentions.{layer_in_block_id}"} + assign_to_checkpoint( + paths, new_checkpoint, unet_state_dict, additional_replacements=[meta_path], config=config + ) + + resnet_0 = middle_blocks[0] + attentions = middle_blocks[1] + resnet_1 = middle_blocks[2] + + resnet_0_paths = renew_resnet_paths(resnet_0) + assign_to_checkpoint(resnet_0_paths, new_checkpoint, unet_state_dict, config=config) + + resnet_1_paths = renew_resnet_paths(resnet_1) + assign_to_checkpoint(resnet_1_paths, new_checkpoint, unet_state_dict, config=config) + + attentions_paths = renew_attention_paths(attentions) + meta_path = {"old": "middle_block.1", "new": "mid_block.attentions.0"} + assign_to_checkpoint( + attentions_paths, new_checkpoint, unet_state_dict, additional_replacements=[meta_path], config=config + ) + + for i in range(num_output_blocks): + block_id = i // (config["layers_per_block"] + 1) + layer_in_block_id = i % (config["layers_per_block"] + 1) + output_block_layers = [shave_segments(name, 2) for name in output_blocks[i]] + output_block_list = {} + + for layer in output_block_layers: + layer_id, layer_name = layer.split(".")[0], shave_segments(layer, 1) + if layer_id in output_block_list: + output_block_list[layer_id].append(layer_name) + else: + output_block_list[layer_id] = [layer_name] + + if len(output_block_list) > 1: + resnets = [key for key in output_blocks[i] if f"output_blocks.{i}.0" in key] + attentions = [key for key in output_blocks[i] if f"output_blocks.{i}.1" in key] + + resnet_0_paths = renew_resnet_paths(resnets) + paths = renew_resnet_paths(resnets) + + meta_path = {"old": f"output_blocks.{i}.0", "new": f"up_blocks.{block_id}.resnets.{layer_in_block_id}"} + assign_to_checkpoint( + paths, new_checkpoint, unet_state_dict, additional_replacements=[meta_path], config=config + ) + + output_block_list = {k: sorted(v) for k, v in sorted(output_block_list.items())} + if ["conv.bias", "conv.weight"] in output_block_list.values(): + index = list(output_block_list.values()).index(["conv.bias", "conv.weight"]) + new_checkpoint[f"up_blocks.{block_id}.upsamplers.0.conv.weight"] = unet_state_dict[ + f"output_blocks.{i}.{index}.conv.weight" + ] + new_checkpoint[f"up_blocks.{block_id}.upsamplers.0.conv.bias"] = unet_state_dict[ + f"output_blocks.{i}.{index}.conv.bias" + ] + + # Clear attentions as they have been attributed above. + if len(attentions) == 2: + attentions = [] + + if len(attentions): + paths = renew_attention_paths(attentions) + meta_path = { + "old": f"output_blocks.{i}.1", + "new": f"up_blocks.{block_id}.attentions.{layer_in_block_id}", + } + assign_to_checkpoint( + paths, new_checkpoint, unet_state_dict, additional_replacements=[meta_path], config=config + ) + else: + resnet_0_paths = renew_resnet_paths(output_block_layers, n_shave_prefix_segments=1) + for path in resnet_0_paths: + old_path = ".".join(["output_blocks", str(i), path["old"]]) + new_path = ".".join(["up_blocks", str(block_id), "resnets", str(layer_in_block_id), path["new"]]) + + new_checkpoint[new_path] = unet_state_dict[old_path] + + if controlnet: + # conditioning embedding + + orig_index = 0 + + new_checkpoint["controlnet_cond_embedding.conv_in.weight"] = unet_state_dict.pop( + f"input_hint_block.{orig_index}.weight" + ) + new_checkpoint["controlnet_cond_embedding.conv_in.bias"] = unet_state_dict.pop( + f"input_hint_block.{orig_index}.bias" + ) + + orig_index += 2 + + diffusers_index = 0 + + while diffusers_index < 6: + new_checkpoint[f"controlnet_cond_embedding.blocks.{diffusers_index}.weight"] = unet_state_dict.pop( + f"input_hint_block.{orig_index}.weight" + ) + new_checkpoint[f"controlnet_cond_embedding.blocks.{diffusers_index}.bias"] = unet_state_dict.pop( + f"input_hint_block.{orig_index}.bias" + ) + diffusers_index += 1 + orig_index += 2 + + new_checkpoint["controlnet_cond_embedding.conv_out.weight"] = unet_state_dict.pop( + f"input_hint_block.{orig_index}.weight" + ) + new_checkpoint["controlnet_cond_embedding.conv_out.bias"] = unet_state_dict.pop( + f"input_hint_block.{orig_index}.bias" + ) + + # down blocks + for i in range(num_input_blocks): + new_checkpoint[f"controlnet_down_blocks.{i}.weight"] = unet_state_dict.pop(f"zero_convs.{i}.0.weight") + new_checkpoint[f"controlnet_down_blocks.{i}.bias"] = unet_state_dict.pop(f"zero_convs.{i}.0.bias") + + # mid block + new_checkpoint["controlnet_mid_block.weight"] = unet_state_dict.pop("middle_block_out.0.weight") + new_checkpoint["controlnet_mid_block.bias"] = unet_state_dict.pop("middle_block_out.0.bias") + + return new_checkpoint + + +def convert_ldm_vae_checkpoint(checkpoint, config): + # extract state dict for VAE + vae_state_dict = {} + keys = list(checkpoint.keys()) + vae_key = "first_stage_model." if any(k.startswith("first_stage_model.") for k in keys) else "" + for key in keys: + if key.startswith(vae_key): + vae_state_dict[key.replace(vae_key, "")] = checkpoint.get(key) + + new_checkpoint = {} + + new_checkpoint["encoder.conv_in.weight"] = vae_state_dict["encoder.conv_in.weight"] + new_checkpoint["encoder.conv_in.bias"] = vae_state_dict["encoder.conv_in.bias"] + new_checkpoint["encoder.conv_out.weight"] = vae_state_dict["encoder.conv_out.weight"] + new_checkpoint["encoder.conv_out.bias"] = vae_state_dict["encoder.conv_out.bias"] + new_checkpoint["encoder.conv_norm_out.weight"] = vae_state_dict["encoder.norm_out.weight"] + new_checkpoint["encoder.conv_norm_out.bias"] = vae_state_dict["encoder.norm_out.bias"] + + new_checkpoint["decoder.conv_in.weight"] = vae_state_dict["decoder.conv_in.weight"] + new_checkpoint["decoder.conv_in.bias"] = vae_state_dict["decoder.conv_in.bias"] + new_checkpoint["decoder.conv_out.weight"] = vae_state_dict["decoder.conv_out.weight"] + new_checkpoint["decoder.conv_out.bias"] = vae_state_dict["decoder.conv_out.bias"] + new_checkpoint["decoder.conv_norm_out.weight"] = vae_state_dict["decoder.norm_out.weight"] + new_checkpoint["decoder.conv_norm_out.bias"] = vae_state_dict["decoder.norm_out.bias"] + + new_checkpoint["quant_conv.weight"] = vae_state_dict["quant_conv.weight"] + new_checkpoint["quant_conv.bias"] = vae_state_dict["quant_conv.bias"] + new_checkpoint["post_quant_conv.weight"] = vae_state_dict["post_quant_conv.weight"] + new_checkpoint["post_quant_conv.bias"] = vae_state_dict["post_quant_conv.bias"] + + # Retrieves the keys for the encoder down blocks only + num_down_blocks = len({".".join(layer.split(".")[:3]) for layer in vae_state_dict if "encoder.down" in layer}) + down_blocks = { + layer_id: [key for key in vae_state_dict if f"down.{layer_id}" in key] for layer_id in range(num_down_blocks) + } + + # Retrieves the keys for the decoder up blocks only + num_up_blocks = len({".".join(layer.split(".")[:3]) for layer in vae_state_dict if "decoder.up" in layer}) + up_blocks = { + layer_id: [key for key in vae_state_dict if f"up.{layer_id}" in key] for layer_id in range(num_up_blocks) + } + + for i in range(num_down_blocks): + resnets = [key for key in down_blocks[i] if f"down.{i}" in key and f"down.{i}.downsample" not in key] + + if f"encoder.down.{i}.downsample.conv.weight" in vae_state_dict: + new_checkpoint[f"encoder.down_blocks.{i}.downsamplers.0.conv.weight"] = vae_state_dict.pop( + f"encoder.down.{i}.downsample.conv.weight" + ) + new_checkpoint[f"encoder.down_blocks.{i}.downsamplers.0.conv.bias"] = vae_state_dict.pop( + f"encoder.down.{i}.downsample.conv.bias" + ) + + paths = renew_vae_resnet_paths(resnets) + meta_path = {"old": f"down.{i}.block", "new": f"down_blocks.{i}.resnets"} + assign_to_checkpoint(paths, new_checkpoint, vae_state_dict, additional_replacements=[meta_path], config=config) + + mid_resnets = [key for key in vae_state_dict if "encoder.mid.block" in key] + num_mid_res_blocks = 2 + for i in range(1, num_mid_res_blocks + 1): + resnets = [key for key in mid_resnets if f"encoder.mid.block_{i}" in key] + + paths = renew_vae_resnet_paths(resnets) + meta_path = {"old": f"mid.block_{i}", "new": f"mid_block.resnets.{i - 1}"} + assign_to_checkpoint(paths, new_checkpoint, vae_state_dict, additional_replacements=[meta_path], config=config) + + mid_attentions = [key for key in vae_state_dict if "encoder.mid.attn" in key] + paths = renew_vae_attention_paths(mid_attentions) + meta_path = {"old": "mid.attn_1", "new": "mid_block.attentions.0"} + assign_to_checkpoint(paths, new_checkpoint, vae_state_dict, additional_replacements=[meta_path], config=config) + conv_attn_to_linear(new_checkpoint) + + for i in range(num_up_blocks): + block_id = num_up_blocks - 1 - i + resnets = [ + key for key in up_blocks[block_id] if f"up.{block_id}" in key and f"up.{block_id}.upsample" not in key + ] + + if f"decoder.up.{block_id}.upsample.conv.weight" in vae_state_dict: + new_checkpoint[f"decoder.up_blocks.{i}.upsamplers.0.conv.weight"] = vae_state_dict[ + f"decoder.up.{block_id}.upsample.conv.weight" + ] + new_checkpoint[f"decoder.up_blocks.{i}.upsamplers.0.conv.bias"] = vae_state_dict[ + f"decoder.up.{block_id}.upsample.conv.bias" + ] + + paths = renew_vae_resnet_paths(resnets) + meta_path = {"old": f"up.{block_id}.block", "new": f"up_blocks.{i}.resnets"} + assign_to_checkpoint(paths, new_checkpoint, vae_state_dict, additional_replacements=[meta_path], config=config) + + mid_resnets = [key for key in vae_state_dict if "decoder.mid.block" in key] + num_mid_res_blocks = 2 + for i in range(1, num_mid_res_blocks + 1): + resnets = [key for key in mid_resnets if f"decoder.mid.block_{i}" in key] + + paths = renew_vae_resnet_paths(resnets) + meta_path = {"old": f"mid.block_{i}", "new": f"mid_block.resnets.{i - 1}"} + assign_to_checkpoint(paths, new_checkpoint, vae_state_dict, additional_replacements=[meta_path], config=config) + + mid_attentions = [key for key in vae_state_dict if "decoder.mid.attn" in key] + paths = renew_vae_attention_paths(mid_attentions) + meta_path = {"old": "mid.attn_1", "new": "mid_block.attentions.0"} + assign_to_checkpoint(paths, new_checkpoint, vae_state_dict, additional_replacements=[meta_path], config=config) + conv_attn_to_linear(new_checkpoint) + return new_checkpoint + + +def convert_ldm_bert_checkpoint(checkpoint, config): + def _copy_attn_layer(hf_attn_layer, pt_attn_layer): + hf_attn_layer.q_proj.weight.data = pt_attn_layer.to_q.weight + hf_attn_layer.k_proj.weight.data = pt_attn_layer.to_k.weight + hf_attn_layer.v_proj.weight.data = pt_attn_layer.to_v.weight + + hf_attn_layer.out_proj.weight = pt_attn_layer.to_out.weight + hf_attn_layer.out_proj.bias = pt_attn_layer.to_out.bias + + def _copy_linear(hf_linear, pt_linear): + hf_linear.weight = pt_linear.weight + hf_linear.bias = pt_linear.bias + + def _copy_layer(hf_layer, pt_layer): + # copy layer norms + _copy_linear(hf_layer.self_attn_layer_norm, pt_layer[0][0]) + _copy_linear(hf_layer.final_layer_norm, pt_layer[1][0]) + + # copy attn + _copy_attn_layer(hf_layer.self_attn, pt_layer[0][1]) + + # copy MLP + pt_mlp = pt_layer[1][1] + _copy_linear(hf_layer.fc1, pt_mlp.net[0][0]) + _copy_linear(hf_layer.fc2, pt_mlp.net[2]) + + def _copy_layers(hf_layers, pt_layers): + for i, hf_layer in enumerate(hf_layers): + if i != 0: + i += i + pt_layer = pt_layers[i : i + 2] + _copy_layer(hf_layer, pt_layer) + + hf_model = LDMBertModel(config).eval() + + # copy embeds + hf_model.model.embed_tokens.weight = checkpoint.transformer.token_emb.weight + hf_model.model.embed_positions.weight.data = checkpoint.transformer.pos_emb.emb.weight + + # copy layer norm + _copy_linear(hf_model.model.layer_norm, checkpoint.transformer.norm) + + # copy hidden layers + _copy_layers(hf_model.model.layers, checkpoint.transformer.attn_layers.layers) + + _copy_linear(hf_model.to_logits, checkpoint.transformer.to_logits) + + return hf_model + + +def convert_ldm_clip_checkpoint(checkpoint, local_files_only=False, text_encoder=None): + if text_encoder is None: + config_name = "openai/clip-vit-large-patch14" + try: + config = CLIPTextConfig.from_pretrained(config_name, local_files_only=local_files_only) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the configuration in the following path: 'openai/clip-vit-large-patch14'." + ) + + ctx = init_empty_weights if is_accelerate_available() else nullcontext + with ctx(): + text_model = CLIPTextModel(config) + else: + text_model = text_encoder + + keys = list(checkpoint.keys()) + + text_model_dict = {} + + remove_prefixes = ["cond_stage_model.transformer", "conditioner.embedders.0.transformer"] + + for key in keys: + for prefix in remove_prefixes: + if key.startswith(prefix): + text_model_dict[key[len(prefix + ".") :]] = checkpoint[key] + + if is_accelerate_available(): + for param_name, param in text_model_dict.items(): + set_module_tensor_to_device(text_model, param_name, "cpu", value=param) + else: + if not (hasattr(text_model, "embeddings") and hasattr(text_model.embeddings.position_ids)): + text_model_dict.pop("text_model.embeddings.position_ids", None) + + text_model.load_state_dict(text_model_dict) + + return text_model + + +textenc_conversion_lst = [ + ("positional_embedding", "text_model.embeddings.position_embedding.weight"), + ("token_embedding.weight", "text_model.embeddings.token_embedding.weight"), + ("ln_final.weight", "text_model.final_layer_norm.weight"), + ("ln_final.bias", "text_model.final_layer_norm.bias"), + ("text_projection", "text_projection.weight"), +] +textenc_conversion_map = {x[0]: x[1] for x in textenc_conversion_lst} + +textenc_transformer_conversion_lst = [ + # (stable-diffusion, HF Diffusers) + ("resblocks.", "text_model.encoder.layers."), + ("ln_1", "layer_norm1"), + ("ln_2", "layer_norm2"), + (".c_fc.", ".fc1."), + (".c_proj.", ".fc2."), + (".attn", ".self_attn"), + ("ln_final.", "transformer.text_model.final_layer_norm."), + ("token_embedding.weight", "transformer.text_model.embeddings.token_embedding.weight"), + ("positional_embedding", "transformer.text_model.embeddings.position_embedding.weight"), +] +protected = {re.escape(x[0]): x[1] for x in textenc_transformer_conversion_lst} +textenc_pattern = re.compile("|".join(protected.keys())) + + +def convert_paint_by_example_checkpoint(checkpoint, local_files_only=False): + config = CLIPVisionConfig.from_pretrained("openai/clip-vit-large-patch14", local_files_only=local_files_only) + model = PaintByExampleImageEncoder(config) + + keys = list(checkpoint.keys()) + + text_model_dict = {} + + for key in keys: + if key.startswith("cond_stage_model.transformer"): + text_model_dict[key[len("cond_stage_model.transformer.") :]] = checkpoint[key] + + # load clip vision + model.model.load_state_dict(text_model_dict) + + # load mapper + keys_mapper = { + k[len("cond_stage_model.mapper.res") :]: v + for k, v in checkpoint.items() + if k.startswith("cond_stage_model.mapper") + } + + MAPPING = { + "attn.c_qkv": ["attn1.to_q", "attn1.to_k", "attn1.to_v"], + "attn.c_proj": ["attn1.to_out.0"], + "ln_1": ["norm1"], + "ln_2": ["norm3"], + "mlp.c_fc": ["ff.net.0.proj"], + "mlp.c_proj": ["ff.net.2"], + } + + mapped_weights = {} + for key, value in keys_mapper.items(): + prefix = key[: len("blocks.i")] + suffix = key.split(prefix)[-1].split(".")[-1] + name = key.split(prefix)[-1].split(suffix)[0][1:-1] + mapped_names = MAPPING[name] + + num_splits = len(mapped_names) + for i, mapped_name in enumerate(mapped_names): + new_name = ".".join([prefix, mapped_name, suffix]) + shape = value.shape[0] // num_splits + mapped_weights[new_name] = value[i * shape : (i + 1) * shape] + + model.mapper.load_state_dict(mapped_weights) + + # load final layer norm + model.final_layer_norm.load_state_dict( + { + "bias": checkpoint["cond_stage_model.final_ln.bias"], + "weight": checkpoint["cond_stage_model.final_ln.weight"], + } + ) + + # load final proj + model.proj_out.load_state_dict( + { + "bias": checkpoint["proj_out.bias"], + "weight": checkpoint["proj_out.weight"], + } + ) + + # load uncond vector + model.uncond_vector.data = torch.nn.Parameter(checkpoint["learnable_vector"]) + return model + + +def convert_open_clip_checkpoint( + checkpoint, + config_name, + prefix="cond_stage_model.model.", + has_projection=False, + local_files_only=False, + **config_kwargs, +): + # text_model = CLIPTextModel.from_pretrained("stabilityai/stable-diffusion-2", subfolder="text_encoder") + # text_model = CLIPTextModelWithProjection.from_pretrained( + # "laion/CLIP-ViT-bigG-14-laion2B-39B-b160k", projection_dim=1280 + # ) + try: + config = CLIPTextConfig.from_pretrained(config_name, **config_kwargs, local_files_only=local_files_only) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the configuration in the following path: '{config_name}'." + ) + + ctx = init_empty_weights if is_accelerate_available() else nullcontext + with ctx(): + text_model = CLIPTextModelWithProjection(config) if has_projection else CLIPTextModel(config) + + keys = list(checkpoint.keys()) + + keys_to_ignore = [] + if config_name == "stabilityai/stable-diffusion-2" and config.num_hidden_layers == 23: + # make sure to remove all keys > 22 + keys_to_ignore += [k for k in keys if k.startswith("cond_stage_model.model.transformer.resblocks.23")] + keys_to_ignore += ["cond_stage_model.model.text_projection"] + + text_model_dict = {} + + if prefix + "text_projection" in checkpoint: + d_model = int(checkpoint[prefix + "text_projection"].shape[0]) + else: + d_model = 1024 + + text_model_dict["text_model.embeddings.position_ids"] = text_model.text_model.embeddings.get_buffer("position_ids") + + for key in keys: + if key in keys_to_ignore: + continue + if key[len(prefix) :] in textenc_conversion_map: + if key.endswith("text_projection"): + value = checkpoint[key].T.contiguous() + else: + value = checkpoint[key] + + text_model_dict[textenc_conversion_map[key[len(prefix) :]]] = value + + if key.startswith(prefix + "transformer."): + new_key = key[len(prefix + "transformer.") :] + if new_key.endswith(".in_proj_weight"): + new_key = new_key[: -len(".in_proj_weight")] + new_key = textenc_pattern.sub(lambda m: protected[re.escape(m.group(0))], new_key) + text_model_dict[new_key + ".q_proj.weight"] = checkpoint[key][:d_model, :] + text_model_dict[new_key + ".k_proj.weight"] = checkpoint[key][d_model : d_model * 2, :] + text_model_dict[new_key + ".v_proj.weight"] = checkpoint[key][d_model * 2 :, :] + elif new_key.endswith(".in_proj_bias"): + new_key = new_key[: -len(".in_proj_bias")] + new_key = textenc_pattern.sub(lambda m: protected[re.escape(m.group(0))], new_key) + text_model_dict[new_key + ".q_proj.bias"] = checkpoint[key][:d_model] + text_model_dict[new_key + ".k_proj.bias"] = checkpoint[key][d_model : d_model * 2] + text_model_dict[new_key + ".v_proj.bias"] = checkpoint[key][d_model * 2 :] + else: + new_key = textenc_pattern.sub(lambda m: protected[re.escape(m.group(0))], new_key) + + text_model_dict[new_key] = checkpoint[key] + + if is_accelerate_available(): + for param_name, param in text_model_dict.items(): + set_module_tensor_to_device(text_model, param_name, "cpu", value=param) + else: + if not (hasattr(text_model, "embeddings") and hasattr(text_model.embeddings.position_ids)): + text_model_dict.pop("text_model.embeddings.position_ids", None) + + text_model.load_state_dict(text_model_dict) + + return text_model + + +def stable_unclip_image_encoder(original_config, local_files_only=False): + """ + Returns the image processor and clip image encoder for the img2img unclip pipeline. + + We currently know of two types of stable unclip models which separately use the clip and the openclip image + encoders. + """ + + image_embedder_config = original_config["model"]["params"]["embedder_config"] + + sd_clip_image_embedder_class = image_embedder_config["target"] + sd_clip_image_embedder_class = sd_clip_image_embedder_class.split(".")[-1] + + if sd_clip_image_embedder_class == "ClipImageEmbedder": + clip_model_name = image_embedder_config.params.model + + if clip_model_name == "ViT-L/14": + feature_extractor = CLIPImageProcessor() + image_encoder = CLIPVisionModelWithProjection.from_pretrained( + "openai/clip-vit-large-patch14", local_files_only=local_files_only + ) + else: + raise NotImplementedError(f"Unknown CLIP checkpoint name in stable diffusion checkpoint {clip_model_name}") + + elif sd_clip_image_embedder_class == "FrozenOpenCLIPImageEmbedder": + feature_extractor = CLIPImageProcessor() + image_encoder = CLIPVisionModelWithProjection.from_pretrained( + "laion/CLIP-ViT-H-14-laion2B-s32B-b79K", local_files_only=local_files_only + ) + else: + raise NotImplementedError( + f"Unknown CLIP image embedder class in stable diffusion checkpoint {sd_clip_image_embedder_class}" + ) + + return feature_extractor, image_encoder + + +def stable_unclip_image_noising_components( + original_config, clip_stats_path: Optional[str] = None, device: Optional[str] = None +): + """ + Returns the noising components for the img2img and txt2img unclip pipelines. + + Converts the stability noise augmentor into + 1. a `StableUnCLIPImageNormalizer` for holding the CLIP stats + 2. a `DDPMScheduler` for holding the noise schedule + + If the noise augmentor config specifies a clip stats path, the `clip_stats_path` must be provided. + """ + noise_aug_config = original_config["model"]["params"]["noise_aug_config"] + noise_aug_class = noise_aug_config["target"] + noise_aug_class = noise_aug_class.split(".")[-1] + + if noise_aug_class == "CLIPEmbeddingNoiseAugmentation": + noise_aug_config = noise_aug_config.params + embedding_dim = noise_aug_config.timestep_dim + max_noise_level = noise_aug_config.noise_schedule_config.timesteps + beta_schedule = noise_aug_config.noise_schedule_config.beta_schedule + + image_normalizer = StableUnCLIPImageNormalizer(embedding_dim=embedding_dim) + image_noising_scheduler = DDPMScheduler(num_train_timesteps=max_noise_level, beta_schedule=beta_schedule) + + if "clip_stats_path" in noise_aug_config: + if clip_stats_path is None: + raise ValueError("This stable unclip config requires a `clip_stats_path`") + + clip_mean, clip_std = torch.load(clip_stats_path, map_location=device) + clip_mean = clip_mean[None, :] + clip_std = clip_std[None, :] + + clip_stats_state_dict = { + "mean": clip_mean, + "std": clip_std, + } + + image_normalizer.load_state_dict(clip_stats_state_dict) + else: + raise NotImplementedError(f"Unknown noise augmentor class: {noise_aug_class}") + + return image_normalizer, image_noising_scheduler + + +def convert_controlnet_checkpoint( + checkpoint, + original_config, + checkpoint_path, + image_size, + upcast_attention, + extract_ema, + use_linear_projection=None, + cross_attention_dim=None, +): + ctrlnet_config = create_unet_diffusers_config(original_config, image_size=image_size, controlnet=True) + ctrlnet_config["upcast_attention"] = upcast_attention + + ctrlnet_config.pop("sample_size") + + if use_linear_projection is not None: + ctrlnet_config["use_linear_projection"] = use_linear_projection + + if cross_attention_dim is not None: + ctrlnet_config["cross_attention_dim"] = cross_attention_dim + + ctx = init_empty_weights if is_accelerate_available() else nullcontext + with ctx(): + controlnet = ControlNetModel(**ctrlnet_config) + + # Some controlnet ckpt files are distributed independently from the rest of the + # model components i.e. https://huggingface.co/thibaud/controlnet-sd21/ + if "time_embed.0.weight" in checkpoint: + skip_extract_state_dict = True + else: + skip_extract_state_dict = False + + converted_ctrl_checkpoint = convert_ldm_unet_checkpoint( + checkpoint, + ctrlnet_config, + path=checkpoint_path, + extract_ema=extract_ema, + controlnet=True, + skip_extract_state_dict=skip_extract_state_dict, + ) + + if is_accelerate_available(): + for param_name, param in converted_ctrl_checkpoint.items(): + set_module_tensor_to_device(controlnet, param_name, "cpu", value=param) + else: + controlnet.load_state_dict(converted_ctrl_checkpoint) + + return controlnet + + +def download_from_original_stable_diffusion_ckpt( + checkpoint_path_or_dict: Union[str, Dict[str, torch.Tensor]], + original_config_file: str = None, + image_size: Optional[int] = None, + prediction_type: str = None, + model_type: str = None, + extract_ema: bool = False, + scheduler_type: str = "pndm", + num_in_channels: Optional[int] = None, + upcast_attention: Optional[bool] = None, + device: str = None, + from_safetensors: bool = False, + stable_unclip: Optional[str] = None, + stable_unclip_prior: Optional[str] = None, + clip_stats_path: Optional[str] = None, + controlnet: Optional[bool] = None, + adapter: Optional[bool] = None, + load_safety_checker: bool = True, + safety_checker: Optional[StableDiffusionSafetyChecker] = None, + feature_extractor: Optional[AutoFeatureExtractor] = None, + pipeline_class: DiffusionPipeline = None, + local_files_only=False, + vae_path=None, + vae=None, + text_encoder=None, + text_encoder_2=None, + tokenizer=None, + tokenizer_2=None, + config_files=None, +) -> DiffusionPipeline: + """ + Load a Stable Diffusion pipeline object from a CompVis-style `.ckpt`/`.safetensors` file and (ideally) a `.yaml` + config file. + + Although many of the arguments can be automatically inferred, some of these rely on brittle checks against the + global step count, which will likely fail for models that have undergone further fine-tuning. Therefore, it is + recommended that you override the default values and/or supply an `original_config_file` wherever possible. + + Args: + checkpoint_path_or_dict (`str` or `dict`): Path to `.ckpt` file, or the state dict. + original_config_file (`str`): + Path to `.yaml` config file corresponding to the original architecture. If `None`, will be automatically + inferred by looking for a key that only exists in SD2.0 models. + image_size (`int`, *optional*, defaults to 512): + The image size that the model was trained on. Use 512 for Stable Diffusion v1.X and Stable Diffusion v2 + Base. Use 768 for Stable Diffusion v2. + prediction_type (`str`, *optional*): + The prediction type that the model was trained on. Use `'epsilon'` for Stable Diffusion v1.X and Stable + Diffusion v2 Base. Use `'v_prediction'` for Stable Diffusion v2. + num_in_channels (`int`, *optional*, defaults to None): + The number of input channels. If `None`, it will be automatically inferred. + scheduler_type (`str`, *optional*, defaults to 'pndm'): + Type of scheduler to use. Should be one of `["pndm", "lms", "heun", "euler", "euler-ancestral", "dpm", + "ddim"]`. + model_type (`str`, *optional*, defaults to `None`): + The pipeline type. `None` to automatically infer, or one of `["FrozenOpenCLIPEmbedder", + "FrozenCLIPEmbedder", "PaintByExample"]`. + is_img2img (`bool`, *optional*, defaults to `False`): + Whether the model should be loaded as an img2img pipeline. + extract_ema (`bool`, *optional*, defaults to `False`): Only relevant for + checkpoints that have both EMA and non-EMA weights. Whether to extract the EMA weights or not. Defaults to + `False`. Pass `True` to extract the EMA weights. EMA weights usually yield higher quality images for + inference. Non-EMA weights are usually better to continue fine-tuning. + upcast_attention (`bool`, *optional*, defaults to `None`): + Whether the attention computation should always be upcasted. This is necessary when running stable + diffusion 2.1. + device (`str`, *optional*, defaults to `None`): + The device to use. Pass `None` to determine automatically. + from_safetensors (`str`, *optional*, defaults to `False`): + If `checkpoint_path` is in `safetensors` format, load checkpoint with safetensors instead of PyTorch. + load_safety_checker (`bool`, *optional*, defaults to `True`): + Whether to load the safety checker or not. Defaults to `True`. + safety_checker (`StableDiffusionSafetyChecker`, *optional*, defaults to `None`): + Safety checker to use. If this parameter is `None`, the function will load a new instance of + [StableDiffusionSafetyChecker] by itself, if needed. + feature_extractor (`AutoFeatureExtractor`, *optional*, defaults to `None`): + Feature extractor to use. If this parameter is `None`, the function will load a new instance of + [AutoFeatureExtractor] by itself, if needed. + pipeline_class (`str`, *optional*, defaults to `None`): + The pipeline class to use. Pass `None` to determine automatically. + local_files_only (`bool`, *optional*, defaults to `False`): + Whether or not to only look at local files (i.e., do not try to download the model). + vae (`AutoencoderKL`, *optional*, defaults to `None`): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. If + this parameter is `None`, the function will load a new instance of [CLIP] by itself, if needed. + text_encoder (`CLIPTextModel`, *optional*, defaults to `None`): + An instance of [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel) + to use, specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) + variant. If this parameter is `None`, the function will load a new instance of [CLIP] by itself, if needed. + tokenizer (`CLIPTokenizer`, *optional*, defaults to `None`): + An instance of + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer) + to use. If this parameter is `None`, the function will load a new instance of [CLIPTokenizer] by itself, if + needed. + config_files (`Dict[str, str]`, *optional*, defaults to `None`): + A dictionary mapping from config file names to their contents. If this parameter is `None`, the function + will load the config files by itself, if needed. Valid keys are: + - `v1`: Config file for Stable Diffusion v1 + - `v2`: Config file for Stable Diffusion v2 + - `xl`: Config file for Stable Diffusion XL + - `xl_refiner`: Config file for Stable Diffusion XL Refiner + return: A StableDiffusionPipeline object representing the passed-in `.ckpt`/`.safetensors` file. + """ + + # import pipelines here to avoid circular import error when using from_single_file method + from diffusers import ( + LDMTextToImagePipeline, + PaintByExamplePipeline, + StableDiffusionControlNetPipeline, + StableDiffusionInpaintPipeline, + StableDiffusionPipeline, + StableDiffusionUpscalePipeline, + StableDiffusionXLControlNetInpaintPipeline, + StableDiffusionXLImg2ImgPipeline, + StableDiffusionXLInpaintPipeline, + StableDiffusionXLPipeline, + StableUnCLIPImg2ImgPipeline, + StableUnCLIPPipeline, + ) + + if prediction_type == "v-prediction": + prediction_type = "v_prediction" + + if isinstance(checkpoint_path_or_dict, str): + if from_safetensors: + from safetensors.torch import load_file as safe_load + + checkpoint = safe_load(checkpoint_path_or_dict, device="cpu") + else: + if device is None: + device = get_device() + checkpoint = torch.load(checkpoint_path_or_dict, map_location=device) + else: + checkpoint = torch.load(checkpoint_path_or_dict, map_location=device) + elif isinstance(checkpoint_path_or_dict, dict): + checkpoint = checkpoint_path_or_dict + + # Sometimes models don't have the global_step item + if "global_step" in checkpoint: + global_step = checkpoint["global_step"] + else: + logger.debug("global_step key not found in model") + global_step = None + + # NOTE: this while loop isn't great but this controlnet checkpoint has one additional + # "state_dict" key https://huggingface.co/thibaud/controlnet-canny-sd21 + while "state_dict" in checkpoint: + checkpoint = checkpoint["state_dict"] + + if original_config_file is None: + key_name_v2_1 = "model.diffusion_model.input_blocks.2.1.transformer_blocks.0.attn2.to_k.weight" + key_name_sd_xl_base = "conditioner.embedders.1.model.transformer.resblocks.9.mlp.c_proj.bias" + key_name_sd_xl_refiner = "conditioner.embedders.0.model.transformer.resblocks.9.mlp.c_proj.bias" + is_upscale = pipeline_class == StableDiffusionUpscalePipeline + + config_url = None + + # model_type = "v1" + if config_files is not None and "v1" in config_files: + original_config_file = config_files["v1"] + else: + config_url = "https://raw.githubusercontent.com/CompVis/stable-diffusion/main/configs/stable-diffusion/v1-inference.yaml" + + if key_name_v2_1 in checkpoint and checkpoint[key_name_v2_1].shape[-1] == 1024: + # model_type = "v2" + if config_files is not None and "v2" in config_files: + original_config_file = config_files["v2"] + else: + config_url = "https://raw.githubusercontent.com/Stability-AI/stablediffusion/main/configs/stable-diffusion/v2-inference-v.yaml" + if global_step == 110000: + # v2.1 needs to upcast attention + upcast_attention = True + elif key_name_sd_xl_base in checkpoint: + # only base xl has two text embedders + if config_files is not None and "xl" in config_files: + original_config_file = config_files["xl"] + else: + config_url = "https://raw.githubusercontent.com/Stability-AI/generative-models/main/configs/inference/sd_xl_base.yaml" + elif key_name_sd_xl_refiner in checkpoint: + # only refiner xl has embedder and one text embedders + if config_files is not None and "xl_refiner" in config_files: + original_config_file = config_files["xl_refiner"] + else: + config_url = "https://raw.githubusercontent.com/Stability-AI/generative-models/main/configs/inference/sd_xl_refiner.yaml" + + if is_upscale: + config_url = "https://raw.githubusercontent.com/Stability-AI/stablediffusion/main/configs/stable-diffusion/x4-upscaling.yaml" + + if config_url is not None: + original_config_file = BytesIO(requests.get(config_url, timeout=DIFFUSERS_REQUEST_TIMEOUT).content) + else: + with open(original_config_file, "r") as f: + original_config_file = f.read() + else: + with open(original_config_file, "r") as f: + original_config_file = f.read() + + original_config = yaml.safe_load(original_config_file) + + # Convert the text model. + if ( + model_type is None + and "cond_stage_config" in original_config["model"]["params"] + and original_config["model"]["params"]["cond_stage_config"] is not None + ): + model_type = original_config["model"]["params"]["cond_stage_config"]["target"].split(".")[-1] + logger.debug(f"no `model_type` given, `model_type` inferred as: {model_type}") + elif model_type is None and original_config["model"]["params"]["network_config"] is not None: + if original_config["model"]["params"]["network_config"]["params"]["context_dim"] == 2048: + model_type = "SDXL" + else: + model_type = "SDXL-Refiner" + if image_size is None: + image_size = 1024 + + if pipeline_class is None: + # Check if we have a SDXL or SD model and initialize default pipeline + if model_type not in ["SDXL", "SDXL-Refiner"]: + pipeline_class = StableDiffusionPipeline if not controlnet else StableDiffusionControlNetPipeline + else: + pipeline_class = StableDiffusionXLPipeline if model_type == "SDXL" else StableDiffusionXLImg2ImgPipeline + + if num_in_channels is None and pipeline_class in [ + StableDiffusionInpaintPipeline, + StableDiffusionXLInpaintPipeline, + StableDiffusionXLControlNetInpaintPipeline, + ]: + num_in_channels = 9 + if num_in_channels is None and pipeline_class == StableDiffusionUpscalePipeline: + num_in_channels = 7 + elif num_in_channels is None: + num_in_channels = 4 + + if "unet_config" in original_config["model"]["params"]: + original_config["model"]["params"]["unet_config"]["params"]["in_channels"] = num_in_channels + elif "network_config" in original_config["model"]["params"]: + original_config["model"]["params"]["network_config"]["params"]["in_channels"] = num_in_channels + + if ( + "parameterization" in original_config["model"]["params"] + and original_config["model"]["params"]["parameterization"] == "v" + ): + if prediction_type is None: + # NOTE: For stable diffusion 2 base it is recommended to pass `prediction_type=="epsilon"` + # as it relies on a brittle global step parameter here + prediction_type = "epsilon" if global_step == 875000 else "v_prediction" + if image_size is None: + # NOTE: For stable diffusion 2 base one has to pass `image_size==512` + # as it relies on a brittle global step parameter here + image_size = 512 if global_step == 875000 else 768 + else: + if prediction_type is None: + prediction_type = "epsilon" + if image_size is None: + image_size = 512 + + if controlnet is None and "control_stage_config" in original_config["model"]["params"]: + path = checkpoint_path_or_dict if isinstance(checkpoint_path_or_dict, str) else "" + controlnet = convert_controlnet_checkpoint( + checkpoint, original_config, path, image_size, upcast_attention, extract_ema + ) + + if "timesteps" in original_config["model"]["params"]: + num_train_timesteps = original_config["model"]["params"]["timesteps"] + else: + num_train_timesteps = 1000 + + if model_type in ["SDXL", "SDXL-Refiner"]: + scheduler_dict = { + "beta_schedule": "scaled_linear", + "beta_start": 0.00085, + "beta_end": 0.012, + "interpolation_type": "linear", + "num_train_timesteps": num_train_timesteps, + "prediction_type": "epsilon", + "sample_max_value": 1.0, + "set_alpha_to_one": False, + "skip_prk_steps": True, + "steps_offset": 1, + "timestep_spacing": "leading", + } + scheduler = EulerDiscreteScheduler.from_config(scheduler_dict) + scheduler_type = "euler" + else: + if "linear_start" in original_config["model"]["params"]: + beta_start = original_config["model"]["params"]["linear_start"] + else: + beta_start = 0.02 + + if "linear_end" in original_config["model"]["params"]: + beta_end = original_config["model"]["params"]["linear_end"] + else: + beta_end = 0.085 + scheduler = DDIMScheduler( + beta_end=beta_end, + beta_schedule="scaled_linear", + beta_start=beta_start, + num_train_timesteps=num_train_timesteps, + steps_offset=1, + clip_sample=False, + set_alpha_to_one=False, + prediction_type=prediction_type, + ) + # make sure scheduler works correctly with DDIM + scheduler.register_to_config(clip_sample=False) + + if scheduler_type == "pndm": + config = dict(scheduler.config) + config["skip_prk_steps"] = True + scheduler = PNDMScheduler.from_config(config) + elif scheduler_type == "lms": + scheduler = LMSDiscreteScheduler.from_config(scheduler.config) + elif scheduler_type == "heun": + scheduler = HeunDiscreteScheduler.from_config(scheduler.config) + elif scheduler_type == "euler": + scheduler = EulerDiscreteScheduler.from_config(scheduler.config) + elif scheduler_type == "euler-ancestral": + scheduler = EulerAncestralDiscreteScheduler.from_config(scheduler.config) + elif scheduler_type == "dpm": + scheduler = DPMSolverMultistepScheduler.from_config(scheduler.config) + elif scheduler_type == "ddim": + scheduler = scheduler + else: + raise ValueError(f"Scheduler of type {scheduler_type} doesn't exist!") + + if pipeline_class == StableDiffusionUpscalePipeline: + image_size = original_config["model"]["params"]["unet_config"]["params"]["image_size"] + + # Convert the UNet2DConditionModel model. + unet_config = create_unet_diffusers_config(original_config, image_size=image_size) + unet_config["upcast_attention"] = upcast_attention + + path = checkpoint_path_or_dict if isinstance(checkpoint_path_or_dict, str) else "" + converted_unet_checkpoint = convert_ldm_unet_checkpoint( + checkpoint, unet_config, path=path, extract_ema=extract_ema + ) + + ctx = init_empty_weights if is_accelerate_available() else nullcontext + with ctx(): + unet = UNet2DConditionModel(**unet_config) + + if is_accelerate_available(): + if model_type not in ["SDXL", "SDXL-Refiner"]: # SBM Delay this. + for param_name, param in converted_unet_checkpoint.items(): + set_module_tensor_to_device(unet, param_name, "cpu", value=param) + else: + unet.load_state_dict(converted_unet_checkpoint) + + # Convert the VAE model. + if vae_path is None and vae is None: + vae_config = create_vae_diffusers_config(original_config, image_size=image_size) + converted_vae_checkpoint = convert_ldm_vae_checkpoint(checkpoint, vae_config) + + if ( + "model" in original_config + and "params" in original_config["model"] + and "scale_factor" in original_config["model"]["params"] + ): + vae_scaling_factor = original_config["model"]["params"]["scale_factor"] + else: + vae_scaling_factor = 0.18215 # default SD scaling factor + + vae_config["scaling_factor"] = vae_scaling_factor + + ctx = init_empty_weights if is_accelerate_available() else nullcontext + with ctx(): + vae = AutoencoderKL(**vae_config) + + if is_accelerate_available(): + for param_name, param in converted_vae_checkpoint.items(): + set_module_tensor_to_device(vae, param_name, "cpu", value=param) + else: + vae.load_state_dict(converted_vae_checkpoint) + elif vae is None: + vae = AutoencoderKL.from_pretrained(vae_path, local_files_only=local_files_only) + + if model_type == "FrozenOpenCLIPEmbedder": + config_name = "stabilityai/stable-diffusion-2" + config_kwargs = {"subfolder": "text_encoder"} + + if text_encoder is None: + text_model = convert_open_clip_checkpoint( + checkpoint, config_name, local_files_only=local_files_only, **config_kwargs + ) + else: + text_model = text_encoder + + try: + tokenizer = CLIPTokenizer.from_pretrained( + "stabilityai/stable-diffusion-2", subfolder="tokenizer", local_files_only=local_files_only + ) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the tokenizer in the following path: 'stabilityai/stable-diffusion-2'." + ) + + if stable_unclip is None: + if controlnet: + pipe = pipeline_class( + vae=vae, + text_encoder=text_model, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + controlnet=controlnet, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + if hasattr(pipe, "requires_safety_checker"): + pipe.requires_safety_checker = False + + elif pipeline_class == StableDiffusionUpscalePipeline: + scheduler = DDIMScheduler.from_pretrained( + "stabilityai/stable-diffusion-x4-upscaler", subfolder="scheduler" + ) + low_res_scheduler = DDPMScheduler.from_pretrained( + "stabilityai/stable-diffusion-x4-upscaler", subfolder="low_res_scheduler" + ) + + pipe = pipeline_class( + vae=vae, + text_encoder=text_model, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + low_res_scheduler=low_res_scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + + else: + pipe = pipeline_class( + vae=vae, + text_encoder=text_model, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + if hasattr(pipe, "requires_safety_checker"): + pipe.requires_safety_checker = False + + else: + image_normalizer, image_noising_scheduler = stable_unclip_image_noising_components( + original_config, clip_stats_path=clip_stats_path, device=device + ) + + if stable_unclip == "img2img": + feature_extractor, image_encoder = stable_unclip_image_encoder(original_config) + + pipe = StableUnCLIPImg2ImgPipeline( + # image encoding components + feature_extractor=feature_extractor, + image_encoder=image_encoder, + # image noising components + image_normalizer=image_normalizer, + image_noising_scheduler=image_noising_scheduler, + # regular denoising components + tokenizer=tokenizer, + text_encoder=text_model, + unet=unet, + scheduler=scheduler, + # vae + vae=vae, + ) + elif stable_unclip == "txt2img": + if stable_unclip_prior is None or stable_unclip_prior == "karlo": + karlo_model = "kakaobrain/karlo-v1-alpha" + prior = PriorTransformer.from_pretrained( + karlo_model, subfolder="prior", local_files_only=local_files_only + ) + + try: + prior_tokenizer = CLIPTokenizer.from_pretrained( + "openai/clip-vit-large-patch14", local_files_only=local_files_only + ) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the tokenizer in the following path: 'openai/clip-vit-large-patch14'." + ) + prior_text_model = CLIPTextModelWithProjection.from_pretrained( + "openai/clip-vit-large-patch14", local_files_only=local_files_only + ) + + prior_scheduler = UnCLIPScheduler.from_pretrained( + karlo_model, subfolder="prior_scheduler", local_files_only=local_files_only + ) + prior_scheduler = DDPMScheduler.from_config(prior_scheduler.config) + else: + raise NotImplementedError(f"unknown prior for stable unclip model: {stable_unclip_prior}") + + pipe = StableUnCLIPPipeline( + # prior components + prior_tokenizer=prior_tokenizer, + prior_text_encoder=prior_text_model, + prior=prior, + prior_scheduler=prior_scheduler, + # image noising components + image_normalizer=image_normalizer, + image_noising_scheduler=image_noising_scheduler, + # regular denoising components + tokenizer=tokenizer, + text_encoder=text_model, + unet=unet, + scheduler=scheduler, + # vae + vae=vae, + ) + else: + raise NotImplementedError(f"unknown `stable_unclip` type: {stable_unclip}") + elif model_type == "PaintByExample": + vision_model = convert_paint_by_example_checkpoint(checkpoint) + try: + tokenizer = CLIPTokenizer.from_pretrained( + "openai/clip-vit-large-patch14", local_files_only=local_files_only + ) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the tokenizer in the following path: 'openai/clip-vit-large-patch14'." + ) + try: + feature_extractor = AutoFeatureExtractor.from_pretrained( + "CompVis/stable-diffusion-safety-checker", local_files_only=local_files_only + ) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the feature_extractor in the following path: 'CompVis/stable-diffusion-safety-checker'." + ) + pipe = PaintByExamplePipeline( + vae=vae, + image_encoder=vision_model, + unet=unet, + scheduler=scheduler, + safety_checker=None, + feature_extractor=feature_extractor, + ) + elif model_type == "FrozenCLIPEmbedder": + text_model = convert_ldm_clip_checkpoint( + checkpoint, local_files_only=local_files_only, text_encoder=text_encoder + ) + try: + tokenizer = ( + CLIPTokenizer.from_pretrained("openai/clip-vit-large-patch14", local_files_only=local_files_only) + if tokenizer is None + else tokenizer + ) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the tokenizer in the following path: 'openai/clip-vit-large-patch14'." + ) + + if load_safety_checker: + safety_checker = StableDiffusionSafetyChecker.from_pretrained( + "CompVis/stable-diffusion-safety-checker", local_files_only=local_files_only + ) + feature_extractor = AutoFeatureExtractor.from_pretrained( + "CompVis/stable-diffusion-safety-checker", local_files_only=local_files_only + ) + + if controlnet: + pipe = pipeline_class( + vae=vae, + text_encoder=text_model, + tokenizer=tokenizer, + unet=unet, + controlnet=controlnet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + else: + pipe = pipeline_class( + vae=vae, + text_encoder=text_model, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + elif model_type in ["SDXL", "SDXL-Refiner"]: + is_refiner = model_type == "SDXL-Refiner" + + if (is_refiner is False) and (tokenizer is None): + try: + tokenizer = CLIPTokenizer.from_pretrained( + "openai/clip-vit-large-patch14", local_files_only=local_files_only + ) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the tokenizer in the following path: 'openai/clip-vit-large-patch14'." + ) + + if (is_refiner is False) and (text_encoder is None): + text_encoder = convert_ldm_clip_checkpoint(checkpoint, local_files_only=local_files_only) + + if tokenizer_2 is None: + try: + tokenizer_2 = CLIPTokenizer.from_pretrained( + "laion/CLIP-ViT-bigG-14-laion2B-39B-b160k", pad_token="!", local_files_only=local_files_only + ) + except Exception: + raise ValueError( + f"With local_files_only set to {local_files_only}, you must first locally save the tokenizer in the following path: 'laion/CLIP-ViT-bigG-14-laion2B-39B-b160k' with `pad_token` set to '!'." + ) + + if text_encoder_2 is None: + config_name = "laion/CLIP-ViT-bigG-14-laion2B-39B-b160k" + config_kwargs = {"projection_dim": 1280} + prefix = "conditioner.embedders.0.model." if is_refiner else "conditioner.embedders.1.model." + + text_encoder_2 = convert_open_clip_checkpoint( + checkpoint, + config_name, + prefix=prefix, + has_projection=True, + local_files_only=local_files_only, + **config_kwargs, + ) + + if is_accelerate_available(): # SBM Now move model to cpu. + for param_name, param in converted_unet_checkpoint.items(): + set_module_tensor_to_device(unet, param_name, "cpu", value=param) + + if controlnet: + pipe = pipeline_class( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + text_encoder_2=text_encoder_2, + tokenizer_2=tokenizer_2, + unet=unet, + controlnet=controlnet, + scheduler=scheduler, + force_zeros_for_empty_prompt=True, + ) + elif adapter: + pipe = pipeline_class( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + text_encoder_2=text_encoder_2, + tokenizer_2=tokenizer_2, + unet=unet, + adapter=adapter, + scheduler=scheduler, + force_zeros_for_empty_prompt=True, + ) + + else: + pipeline_kwargs = { + "vae": vae, + "text_encoder": text_encoder, + "tokenizer": tokenizer, + "text_encoder_2": text_encoder_2, + "tokenizer_2": tokenizer_2, + "unet": unet, + "scheduler": scheduler, + } + + if (pipeline_class == StableDiffusionXLImg2ImgPipeline) or ( + pipeline_class == StableDiffusionXLInpaintPipeline + ): + pipeline_kwargs.update({"requires_aesthetics_score": is_refiner}) + + if is_refiner: + pipeline_kwargs.update({"force_zeros_for_empty_prompt": False}) + + pipe = pipeline_class(**pipeline_kwargs) + else: + text_config = create_ldm_bert_config(original_config) + text_model = convert_ldm_bert_checkpoint(checkpoint, text_config) + tokenizer = BertTokenizerFast.from_pretrained("bert-base-uncased", local_files_only=local_files_only) + pipe = LDMTextToImagePipeline(vqvae=vae, bert=text_model, tokenizer=tokenizer, unet=unet, scheduler=scheduler) + + return pipe + + +def download_controlnet_from_original_ckpt( + checkpoint_path: str, + original_config_file: str, + image_size: int = 512, + extract_ema: bool = False, + num_in_channels: Optional[int] = None, + upcast_attention: Optional[bool] = None, + device: str = None, + from_safetensors: bool = False, + use_linear_projection: Optional[bool] = None, + cross_attention_dim: Optional[bool] = None, +) -> DiffusionPipeline: + if from_safetensors: + from safetensors import safe_open + + checkpoint = {} + with safe_open(checkpoint_path, framework="pt", device="cpu") as f: + for key in f.keys(): + checkpoint[key] = f.get_tensor(key) + else: + if device is None: + device = get_device() + checkpoint = torch.load(checkpoint_path, map_location=device) + else: + checkpoint = torch.load(checkpoint_path, map_location=device) + + # NOTE: this while loop isn't great but this controlnet checkpoint has one additional + # "state_dict" key https://huggingface.co/thibaud/controlnet-canny-sd21 + while "state_dict" in checkpoint: + checkpoint = checkpoint["state_dict"] + + with open(original_config_file, "r") as f: + original_config_file = f.read() + original_config = yaml.safe_load(original_config_file) + + if num_in_channels is not None: + original_config["model"]["params"]["unet_config"]["params"]["in_channels"] = num_in_channels + + if "control_stage_config" not in original_config["model"]["params"]: + raise ValueError("`control_stage_config` not present in original config") + + controlnet = convert_controlnet_checkpoint( + checkpoint, + original_config, + checkpoint_path, + image_size, + upcast_attention, + extract_ema, + use_linear_projection=use_linear_projection, + cross_attention_dim=cross_attention_dim, + ) + + return controlnet diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion.py new file mode 100644 index 0000000000000000000000000000000000000000..6befe77aa4b1e230e84067d62501333c40dc04dd --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion.py @@ -0,0 +1,473 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import warnings +from functools import partial +from typing import Dict, List, Optional, Union + +import jax +import jax.numpy as jnp +import numpy as np +from flax.core.frozen_dict import FrozenDict +from flax.jax_utils import unreplicate +from flax.training.common_utils import shard +from packaging import version +from PIL import Image +from transformers import CLIPImageProcessor, CLIPTokenizer, FlaxCLIPTextModel + +from ...models import FlaxAutoencoderKL, FlaxUNet2DConditionModel +from ...schedulers import ( + FlaxDDIMScheduler, + FlaxDPMSolverMultistepScheduler, + FlaxLMSDiscreteScheduler, + FlaxPNDMScheduler, +) +from ...utils import deprecate, logging, replace_example_docstring +from ..pipeline_flax_utils import FlaxDiffusionPipeline +from .pipeline_output import FlaxStableDiffusionPipelineOutput +from .safety_checker_flax import FlaxStableDiffusionSafetyChecker + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +# Set to True to use python for loop instead of jax.fori_loop for easier debugging +DEBUG = False + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import jax + >>> import numpy as np + >>> from flax.jax_utils import replicate + >>> from flax.training.common_utils import shard + + >>> from diffusers import FlaxStableDiffusionPipeline + + >>> pipeline, params = FlaxStableDiffusionPipeline.from_pretrained( + ... "stable-diffusion-v1-5/stable-diffusion-v1-5", variant="bf16", dtype=jax.numpy.bfloat16 + ... ) + + >>> prompt = "a photo of an astronaut riding a horse on mars" + + >>> prng_seed = jax.random.PRNGKey(0) + >>> num_inference_steps = 50 + + >>> num_samples = jax.device_count() + >>> prompt = num_samples * [prompt] + >>> prompt_ids = pipeline.prepare_inputs(prompt) + # shard inputs and rng + + >>> params = replicate(params) + >>> prng_seed = jax.random.split(prng_seed, jax.device_count()) + >>> prompt_ids = shard(prompt_ids) + + >>> images = pipeline(prompt_ids, params, prng_seed, num_inference_steps, jit=True).images + >>> images = pipeline.numpy_to_pil(np.asarray(images.reshape((num_samples,) + images.shape[-3:]))) + ``` +""" + + +class FlaxStableDiffusionPipeline(FlaxDiffusionPipeline): + r""" + Flax-based pipeline for text-to-image generation using Stable Diffusion. + + This model inherits from [`FlaxDiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`FlaxAutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.FlaxCLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`FlaxUNet2DConditionModel`]): + A `FlaxUNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`FlaxDDIMScheduler`], [`FlaxLMSDiscreteScheduler`], [`FlaxPNDMScheduler`], or + [`FlaxDPMSolverMultistepScheduler`]. + safety_checker ([`FlaxStableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + def __init__( + self, + vae: FlaxAutoencoderKL, + text_encoder: FlaxCLIPTextModel, + tokenizer: CLIPTokenizer, + unet: FlaxUNet2DConditionModel, + scheduler: Union[ + FlaxDDIMScheduler, FlaxPNDMScheduler, FlaxLMSDiscreteScheduler, FlaxDPMSolverMultistepScheduler + ], + safety_checker: FlaxStableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + dtype: jnp.dtype = jnp.float32, + ): + super().__init__() + self.dtype = dtype + + if safety_checker is None: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + is_unet_sample_size_less_64 = ( + unet is not None and hasattr(unet.config, "sample_size") and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely .If you're checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + + def prepare_inputs(self, prompt: Union[str, List[str]]): + if not isinstance(prompt, (str, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + text_input = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="np", + ) + return text_input.input_ids + + def _get_has_nsfw_concepts(self, features, params): + has_nsfw_concepts = self.safety_checker(features, params) + return has_nsfw_concepts + + def _run_safety_checker(self, images, safety_model_params, jit=False): + # safety_model_params should already be replicated when jit is True + pil_images = [Image.fromarray(image) for image in images] + features = self.feature_extractor(pil_images, return_tensors="np").pixel_values + + if jit: + features = shard(features) + has_nsfw_concepts = _p_get_has_nsfw_concepts(self, features, safety_model_params) + has_nsfw_concepts = unshard(has_nsfw_concepts) + safety_model_params = unreplicate(safety_model_params) + else: + has_nsfw_concepts = self._get_has_nsfw_concepts(features, safety_model_params) + + images_was_copied = False + for idx, has_nsfw_concept in enumerate(has_nsfw_concepts): + if has_nsfw_concept: + if not images_was_copied: + images_was_copied = True + images = images.copy() + + images[idx] = np.zeros(images[idx].shape, dtype=np.uint8) # black image + + if any(has_nsfw_concepts): + warnings.warn( + "Potential NSFW content was detected in one or more images. A black image will be returned" + " instead. Try again with a different prompt and/or seed." + ) + + return images, has_nsfw_concepts + + def _generate( + self, + prompt_ids: jnp.array, + params: Union[Dict, FrozenDict], + prng_seed: jax.Array, + num_inference_steps: int, + height: int, + width: int, + guidance_scale: float, + latents: Optional[jnp.ndarray] = None, + neg_prompt_ids: Optional[jnp.ndarray] = None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + # get prompt text embeddings + prompt_embeds = self.text_encoder(prompt_ids, params=params["text_encoder"])[0] + + # TODO: currently it is assumed `do_classifier_free_guidance = guidance_scale > 1.0` + # implement this conditional `do_classifier_free_guidance = guidance_scale > 1.0` + batch_size = prompt_ids.shape[0] + + max_length = prompt_ids.shape[-1] + + if neg_prompt_ids is None: + uncond_input = self.tokenizer( + [""] * batch_size, padding="max_length", max_length=max_length, return_tensors="np" + ).input_ids + else: + uncond_input = neg_prompt_ids + negative_prompt_embeds = self.text_encoder(uncond_input, params=params["text_encoder"])[0] + context = jnp.concatenate([negative_prompt_embeds, prompt_embeds]) + + # Ensure model output will be `float32` before going into the scheduler + guidance_scale = jnp.array([guidance_scale], dtype=jnp.float32) + + latents_shape = ( + batch_size, + self.unet.config.in_channels, + height // self.vae_scale_factor, + width // self.vae_scale_factor, + ) + if latents is None: + latents = jax.random.normal(prng_seed, shape=latents_shape, dtype=jnp.float32) + else: + if latents.shape != latents_shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {latents_shape}") + + def loop_body(step, args): + latents, scheduler_state = args + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + latents_input = jnp.concatenate([latents] * 2) + + t = jnp.array(scheduler_state.timesteps, dtype=jnp.int32)[step] + timestep = jnp.broadcast_to(t, latents_input.shape[0]) + + latents_input = self.scheduler.scale_model_input(scheduler_state, latents_input, t) + + # predict the noise residual + noise_pred = self.unet.apply( + {"params": params["unet"]}, + jnp.array(latents_input), + jnp.array(timestep, dtype=jnp.int32), + encoder_hidden_states=context, + ).sample + # perform guidance + noise_pred_uncond, noise_prediction_text = jnp.split(noise_pred, 2, axis=0) + noise_pred = noise_pred_uncond + guidance_scale * (noise_prediction_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents, scheduler_state = self.scheduler.step(scheduler_state, noise_pred, t, latents).to_tuple() + return latents, scheduler_state + + scheduler_state = self.scheduler.set_timesteps( + params["scheduler"], num_inference_steps=num_inference_steps, shape=latents.shape + ) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * params["scheduler"].init_noise_sigma + + if DEBUG: + # run with python for loop + for i in range(num_inference_steps): + latents, scheduler_state = loop_body(i, (latents, scheduler_state)) + else: + latents, _ = jax.lax.fori_loop(0, num_inference_steps, loop_body, (latents, scheduler_state)) + + # scale and decode the image latents with vae + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.apply({"params": params["vae"]}, latents, method=self.vae.decode).sample + + image = (image / 2 + 0.5).clip(0, 1).transpose(0, 2, 3, 1) + return image + + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt_ids: jnp.array, + params: Union[Dict, FrozenDict], + prng_seed: jax.Array, + num_inference_steps: int = 50, + height: Optional[int] = None, + width: Optional[int] = None, + guidance_scale: Union[float, jnp.ndarray] = 7.5, + latents: jnp.ndarray = None, + neg_prompt_ids: jnp.ndarray = None, + return_dict: bool = True, + jit: bool = False, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + latents (`jnp.ndarray`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + array is generated by sampling using the supplied random `generator`. + jit (`bool`, defaults to `False`): + Whether to run `pmap` versions of the generation and safety scoring functions. + + > [!WARNING] > This argument exists because `__call__` is not yet end-to-end pmap-able. It will be + removed in a > future release. + + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] instead of + a plain tuple. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] is + returned, otherwise a `tuple` is returned where the first element is a list with the generated images + and the second element is a list of `bool`s indicating whether the corresponding generated image + contains "not-safe-for-work" (nsfw) content. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + if isinstance(guidance_scale, float): + # Convert to a tensor so each device gets a copy. Follow the prompt_ids for + # shape information, as they may be sharded (when `jit` is `True`), or not. + guidance_scale = jnp.array([guidance_scale] * prompt_ids.shape[0]) + if len(prompt_ids.shape) > 2: + # Assume sharded + guidance_scale = guidance_scale[:, None] + + if jit: + images = _p_generate( + self, + prompt_ids, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + ) + else: + images = self._generate( + prompt_ids, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + ) + + if self.safety_checker is not None: + safety_params = params["safety_checker"] + images_uint8_casted = (images * 255).round().astype("uint8") + num_devices, batch_size = images.shape[:2] + + images_uint8_casted = np.asarray(images_uint8_casted).reshape(num_devices * batch_size, height, width, 3) + images_uint8_casted, has_nsfw_concept = self._run_safety_checker(images_uint8_casted, safety_params, jit) + images = np.asarray(images).copy() + + # block images + if any(has_nsfw_concept): + for i, is_nsfw in enumerate(has_nsfw_concept): + if is_nsfw: + images[i, 0] = np.asarray(images_uint8_casted[i]) + + images = images.reshape(num_devices, batch_size, height, width, 3) + else: + images = np.asarray(images) + has_nsfw_concept = False + + if not return_dict: + return (images, has_nsfw_concept) + + return FlaxStableDiffusionPipelineOutput(images=images, nsfw_content_detected=has_nsfw_concept) + + +# Static argnums are pipe, num_inference_steps, height, width. A change would trigger recompilation. +# Non-static args are (sharded) input tensors mapped over their first dimension (hence, `0`). +@partial( + jax.pmap, + in_axes=(None, 0, 0, 0, None, None, None, 0, 0, 0), + static_broadcasted_argnums=(0, 4, 5, 6), +) +def _p_generate( + pipe, + prompt_ids, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, +): + return pipe._generate( + prompt_ids, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + ) + + +@partial(jax.pmap, static_broadcasted_argnums=(0,)) +def _p_get_has_nsfw_concepts(pipe, features, params): + return pipe._get_has_nsfw_concepts(features, params) + + +def unshard(x: jnp.ndarray): + # einops.rearrange(x, 'd b ... -> (d b) ...') + num_devices, batch_size = x.shape[:2] + rest = x.shape[2:] + return x.reshape(num_devices * batch_size, *rest) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion_img2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion_img2img.py new file mode 100644 index 0000000000000000000000000000000000000000..81656beba7e154508b00046d9c69d98c44bb1ca2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion_img2img.py @@ -0,0 +1,528 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import warnings +from functools import partial +from typing import Dict, List, Optional, Union + +import jax +import jax.numpy as jnp +import numpy as np +from flax.core.frozen_dict import FrozenDict +from flax.jax_utils import unreplicate +from flax.training.common_utils import shard +from PIL import Image +from transformers import CLIPImageProcessor, CLIPTokenizer, FlaxCLIPTextModel + +from ...models import FlaxAutoencoderKL, FlaxUNet2DConditionModel +from ...schedulers import ( + FlaxDDIMScheduler, + FlaxDPMSolverMultistepScheduler, + FlaxLMSDiscreteScheduler, + FlaxPNDMScheduler, +) +from ...utils import PIL_INTERPOLATION, logging, replace_example_docstring +from ..pipeline_flax_utils import FlaxDiffusionPipeline +from .pipeline_output import FlaxStableDiffusionPipelineOutput +from .safety_checker_flax import FlaxStableDiffusionSafetyChecker + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +# Set to True to use python for loop instead of jax.fori_loop for easier debugging +DEBUG = False + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import jax + >>> import numpy as np + >>> import jax.numpy as jnp + >>> from flax.jax_utils import replicate + >>> from flax.training.common_utils import shard + >>> import requests + >>> from io import BytesIO + >>> from PIL import Image + >>> from diffusers import FlaxStableDiffusionImg2ImgPipeline + + + >>> def create_key(seed=0): + ... return jax.random.PRNGKey(seed) + + + >>> rng = create_key(0) + + >>> url = "https://raw.githubusercontent.com/CompVis/stable-diffusion/main/assets/stable-samples/img2img/sketch-mountains-input.jpg" + >>> response = requests.get(url) + >>> init_img = Image.open(BytesIO(response.content)).convert("RGB") + >>> init_img = init_img.resize((768, 512)) + + >>> prompts = "A fantasy landscape, trending on artstation" + + >>> pipeline, params = FlaxStableDiffusionImg2ImgPipeline.from_pretrained( + ... "CompVis/stable-diffusion-v1-4", + ... revision="flax", + ... dtype=jnp.bfloat16, + ... ) + + >>> num_samples = jax.device_count() + >>> rng = jax.random.split(rng, jax.device_count()) + >>> prompt_ids, processed_image = pipeline.prepare_inputs( + ... prompt=[prompts] * num_samples, image=[init_img] * num_samples + ... ) + >>> p_params = replicate(params) + >>> prompt_ids = shard(prompt_ids) + >>> processed_image = shard(processed_image) + + >>> output = pipeline( + ... prompt_ids=prompt_ids, + ... image=processed_image, + ... params=p_params, + ... prng_seed=rng, + ... strength=0.75, + ... num_inference_steps=50, + ... jit=True, + ... height=512, + ... width=768, + ... ).images + + >>> output_images = pipeline.numpy_to_pil(np.asarray(output.reshape((num_samples,) + output.shape[-3:]))) + ``` +""" + + +class FlaxStableDiffusionImg2ImgPipeline(FlaxDiffusionPipeline): + r""" + Flax-based pipeline for text-guided image-to-image generation using Stable Diffusion. + + This model inherits from [`FlaxDiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`FlaxAutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.FlaxCLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`FlaxUNet2DConditionModel`]): + A `FlaxUNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`FlaxDDIMScheduler`], [`FlaxLMSDiscreteScheduler`], [`FlaxPNDMScheduler`], or + [`FlaxDPMSolverMultistepScheduler`]. + safety_checker ([`FlaxStableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + def __init__( + self, + vae: FlaxAutoencoderKL, + text_encoder: FlaxCLIPTextModel, + tokenizer: CLIPTokenizer, + unet: FlaxUNet2DConditionModel, + scheduler: Union[ + FlaxDDIMScheduler, FlaxPNDMScheduler, FlaxLMSDiscreteScheduler, FlaxDPMSolverMultistepScheduler + ], + safety_checker: FlaxStableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + dtype: jnp.dtype = jnp.float32, + ): + super().__init__() + self.dtype = dtype + + if safety_checker is None: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + + def prepare_inputs(self, prompt: Union[str, List[str]], image: Union[Image.Image, List[Image.Image]]): + if not isinstance(prompt, (str, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if not isinstance(image, (Image.Image, list)): + raise ValueError(f"image has to be of type `PIL.Image.Image` or list but is {type(image)}") + + if isinstance(image, Image.Image): + image = [image] + + processed_images = jnp.concatenate([preprocess(img, jnp.float32) for img in image]) + + text_input = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="np", + ) + return text_input.input_ids, processed_images + + def _get_has_nsfw_concepts(self, features, params): + has_nsfw_concepts = self.safety_checker(features, params) + return has_nsfw_concepts + + def _run_safety_checker(self, images, safety_model_params, jit=False): + # safety_model_params should already be replicated when jit is True + pil_images = [Image.fromarray(image) for image in images] + features = self.feature_extractor(pil_images, return_tensors="np").pixel_values + + if jit: + features = shard(features) + has_nsfw_concepts = _p_get_has_nsfw_concepts(self, features, safety_model_params) + has_nsfw_concepts = unshard(has_nsfw_concepts) + safety_model_params = unreplicate(safety_model_params) + else: + has_nsfw_concepts = self._get_has_nsfw_concepts(features, safety_model_params) + + images_was_copied = False + for idx, has_nsfw_concept in enumerate(has_nsfw_concepts): + if has_nsfw_concept: + if not images_was_copied: + images_was_copied = True + images = images.copy() + + images[idx] = np.zeros(images[idx].shape, dtype=np.uint8) # black image + + if any(has_nsfw_concepts): + warnings.warn( + "Potential NSFW content was detected in one or more images. A black image will be returned" + " instead. Try again with a different prompt and/or seed." + ) + + return images, has_nsfw_concepts + + def get_timestep_start(self, num_inference_steps, strength): + # get the original timestep using init_timestep + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + + t_start = max(num_inference_steps - init_timestep, 0) + + return t_start + + def _generate( + self, + prompt_ids: jnp.ndarray, + image: jnp.ndarray, + params: Union[Dict, FrozenDict], + prng_seed: jax.Array, + start_timestep: int, + num_inference_steps: int, + height: int, + width: int, + guidance_scale: float, + noise: Optional[jnp.ndarray] = None, + neg_prompt_ids: Optional[jnp.ndarray] = None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + # get prompt text embeddings + prompt_embeds = self.text_encoder(prompt_ids, params=params["text_encoder"])[0] + + # TODO: currently it is assumed `do_classifier_free_guidance = guidance_scale > 1.0` + # implement this conditional `do_classifier_free_guidance = guidance_scale > 1.0` + batch_size = prompt_ids.shape[0] + + max_length = prompt_ids.shape[-1] + + if neg_prompt_ids is None: + uncond_input = self.tokenizer( + [""] * batch_size, padding="max_length", max_length=max_length, return_tensors="np" + ).input_ids + else: + uncond_input = neg_prompt_ids + negative_prompt_embeds = self.text_encoder(uncond_input, params=params["text_encoder"])[0] + context = jnp.concatenate([negative_prompt_embeds, prompt_embeds]) + + latents_shape = ( + batch_size, + self.unet.config.in_channels, + height // self.vae_scale_factor, + width // self.vae_scale_factor, + ) + if noise is None: + noise = jax.random.normal(prng_seed, shape=latents_shape, dtype=jnp.float32) + else: + if noise.shape != latents_shape: + raise ValueError(f"Unexpected latents shape, got {noise.shape}, expected {latents_shape}") + + # Create init_latents + init_latent_dist = self.vae.apply({"params": params["vae"]}, image, method=self.vae.encode).latent_dist + init_latents = init_latent_dist.sample(key=prng_seed).transpose((0, 3, 1, 2)) + init_latents = self.vae.config.scaling_factor * init_latents + + def loop_body(step, args): + latents, scheduler_state = args + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + latents_input = jnp.concatenate([latents] * 2) + + t = jnp.array(scheduler_state.timesteps, dtype=jnp.int32)[step] + timestep = jnp.broadcast_to(t, latents_input.shape[0]) + + latents_input = self.scheduler.scale_model_input(scheduler_state, latents_input, t) + + # predict the noise residual + noise_pred = self.unet.apply( + {"params": params["unet"]}, + jnp.array(latents_input), + jnp.array(timestep, dtype=jnp.int32), + encoder_hidden_states=context, + ).sample + # perform guidance + noise_pred_uncond, noise_prediction_text = jnp.split(noise_pred, 2, axis=0) + noise_pred = noise_pred_uncond + guidance_scale * (noise_prediction_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents, scheduler_state = self.scheduler.step(scheduler_state, noise_pred, t, latents).to_tuple() + return latents, scheduler_state + + scheduler_state = self.scheduler.set_timesteps( + params["scheduler"], num_inference_steps=num_inference_steps, shape=latents_shape + ) + + latent_timestep = scheduler_state.timesteps[start_timestep : start_timestep + 1].repeat(batch_size) + + latents = self.scheduler.add_noise(params["scheduler"], init_latents, noise, latent_timestep) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * params["scheduler"].init_noise_sigma + + if DEBUG: + # run with python for loop + for i in range(start_timestep, num_inference_steps): + latents, scheduler_state = loop_body(i, (latents, scheduler_state)) + else: + latents, _ = jax.lax.fori_loop(start_timestep, num_inference_steps, loop_body, (latents, scheduler_state)) + + # scale and decode the image latents with vae + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.apply({"params": params["vae"]}, latents, method=self.vae.decode).sample + + image = (image / 2 + 0.5).clip(0, 1).transpose(0, 2, 3, 1) + return image + + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt_ids: jnp.ndarray, + image: jnp.ndarray, + params: Union[Dict, FrozenDict], + prng_seed: jax.Array, + strength: float = 0.8, + num_inference_steps: int = 50, + height: Optional[int] = None, + width: Optional[int] = None, + guidance_scale: Union[float, jnp.ndarray] = 7.5, + noise: jnp.ndarray = None, + neg_prompt_ids: jnp.ndarray = None, + return_dict: bool = True, + jit: bool = False, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt_ids (`jnp.ndarray`): + The prompt or prompts to guide image generation. + image (`jnp.ndarray`): + Array representing an image batch to be used as the starting point. + params (`Dict` or `FrozenDict`): + Dictionary containing the model parameters/weights. + prng_seed (`jax.Array` or `jax.Array`): + Array containing random number generator key. + strength (`float`, *optional*, defaults to 0.8): + Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a + starting point and more noise is added the higher the `strength`. The number of denoising steps depends + on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising + process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 + essentially ignores `image`. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. This parameter is modulated by `strength`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + noise (`jnp.ndarray`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. The array is generated by + sampling using the supplied random `generator`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] instead of + a plain tuple. + jit (`bool`, defaults to `False`): + Whether to run `pmap` versions of the generation and safety scoring functions. + + > [!WARNING] > This argument exists because `__call__` is not yet end-to-end pmap-able. It will be + removed in a > future release. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] is + returned, otherwise a `tuple` is returned where the first element is a list with the generated images + and the second element is a list of `bool`s indicating whether the corresponding generated image + contains "not-safe-for-work" (nsfw) content. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + if isinstance(guidance_scale, float): + # Convert to a tensor so each device gets a copy. Follow the prompt_ids for + # shape information, as they may be sharded (when `jit` is `True`), or not. + guidance_scale = jnp.array([guidance_scale] * prompt_ids.shape[0]) + if len(prompt_ids.shape) > 2: + # Assume sharded + guidance_scale = guidance_scale[:, None] + + start_timestep = self.get_timestep_start(num_inference_steps, strength) + + if jit: + images = _p_generate( + self, + prompt_ids, + image, + params, + prng_seed, + start_timestep, + num_inference_steps, + height, + width, + guidance_scale, + noise, + neg_prompt_ids, + ) + else: + images = self._generate( + prompt_ids, + image, + params, + prng_seed, + start_timestep, + num_inference_steps, + height, + width, + guidance_scale, + noise, + neg_prompt_ids, + ) + + if self.safety_checker is not None: + safety_params = params["safety_checker"] + images_uint8_casted = (images * 255).round().astype("uint8") + num_devices, batch_size = images.shape[:2] + + images_uint8_casted = np.asarray(images_uint8_casted).reshape(num_devices * batch_size, height, width, 3) + images_uint8_casted, has_nsfw_concept = self._run_safety_checker(images_uint8_casted, safety_params, jit) + images = np.asarray(images) + + # block images + if any(has_nsfw_concept): + for i, is_nsfw in enumerate(has_nsfw_concept): + if is_nsfw: + images[i] = np.asarray(images_uint8_casted[i]) + + images = images.reshape(num_devices, batch_size, height, width, 3) + else: + images = np.asarray(images) + has_nsfw_concept = False + + if not return_dict: + return (images, has_nsfw_concept) + + return FlaxStableDiffusionPipelineOutput(images=images, nsfw_content_detected=has_nsfw_concept) + + +# Static argnums are pipe, start_timestep, num_inference_steps, height, width. A change would trigger recompilation. +# Non-static args are (sharded) input tensors mapped over their first dimension (hence, `0`). +@partial( + jax.pmap, + in_axes=(None, 0, 0, 0, 0, None, None, None, None, 0, 0, 0), + static_broadcasted_argnums=(0, 5, 6, 7, 8), +) +def _p_generate( + pipe, + prompt_ids, + image, + params, + prng_seed, + start_timestep, + num_inference_steps, + height, + width, + guidance_scale, + noise, + neg_prompt_ids, +): + return pipe._generate( + prompt_ids, + image, + params, + prng_seed, + start_timestep, + num_inference_steps, + height, + width, + guidance_scale, + noise, + neg_prompt_ids, + ) + + +@partial(jax.pmap, static_broadcasted_argnums=(0,)) +def _p_get_has_nsfw_concepts(pipe, features, params): + return pipe._get_has_nsfw_concepts(features, params) + + +def unshard(x: jnp.ndarray): + # einops.rearrange(x, 'd b ... -> (d b) ...') + num_devices, batch_size = x.shape[:2] + rest = x.shape[2:] + return x.reshape(num_devices * batch_size, *rest) + + +def preprocess(image, dtype): + w, h = image.size + w, h = (x - x % 32 for x in (w, h)) # resize to integer multiple of 32 + image = image.resize((w, h), resample=PIL_INTERPOLATION["lanczos"]) + image = jnp.array(image).astype(dtype) / 255.0 + image = image[None].transpose(0, 3, 1, 2) + return 2.0 * image - 1.0 diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion_inpaint.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion_inpaint.py new file mode 100644 index 0000000000000000000000000000000000000000..5938fe232a71b20c2e73cf8da6b2e81918f0f5b9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_flax_stable_diffusion_inpaint.py @@ -0,0 +1,585 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import warnings +from functools import partial +from typing import Dict, List, Optional, Union + +import jax +import jax.numpy as jnp +import numpy as np +from flax.core.frozen_dict import FrozenDict +from flax.jax_utils import unreplicate +from flax.training.common_utils import shard +from packaging import version +from PIL import Image +from transformers import CLIPImageProcessor, CLIPTokenizer, FlaxCLIPTextModel + +from ...models import FlaxAutoencoderKL, FlaxUNet2DConditionModel +from ...schedulers import ( + FlaxDDIMScheduler, + FlaxDPMSolverMultistepScheduler, + FlaxLMSDiscreteScheduler, + FlaxPNDMScheduler, +) +from ...utils import PIL_INTERPOLATION, deprecate, logging, replace_example_docstring +from ..pipeline_flax_utils import FlaxDiffusionPipeline +from .pipeline_output import FlaxStableDiffusionPipelineOutput +from .safety_checker_flax import FlaxStableDiffusionSafetyChecker + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +# Set to True to use python for loop instead of jax.fori_loop for easier debugging +DEBUG = False + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import jax + >>> import numpy as np + >>> from flax.jax_utils import replicate + >>> from flax.training.common_utils import shard + >>> import PIL + >>> import requests + >>> from io import BytesIO + >>> from diffusers import FlaxStableDiffusionInpaintPipeline + + + >>> def download_image(url): + ... response = requests.get(url) + ... return PIL.Image.open(BytesIO(response.content)).convert("RGB") + + + >>> img_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo.png" + >>> mask_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo_mask.png" + + >>> init_image = download_image(img_url).resize((512, 512)) + >>> mask_image = download_image(mask_url).resize((512, 512)) + + >>> pipeline, params = FlaxStableDiffusionInpaintPipeline.from_pretrained( + ... "xvjiarui/stable-diffusion-2-inpainting" + ... ) + + >>> prompt = "Face of a yellow cat, high resolution, sitting on a park bench" + >>> prng_seed = jax.random.PRNGKey(0) + >>> num_inference_steps = 50 + + >>> num_samples = jax.device_count() + >>> prompt = num_samples * [prompt] + >>> init_image = num_samples * [init_image] + >>> mask_image = num_samples * [mask_image] + >>> prompt_ids, processed_masked_images, processed_masks = pipeline.prepare_inputs( + ... prompt, init_image, mask_image + ... ) + # shard inputs and rng + + >>> params = replicate(params) + >>> prng_seed = jax.random.split(prng_seed, jax.device_count()) + >>> prompt_ids = shard(prompt_ids) + >>> processed_masked_images = shard(processed_masked_images) + >>> processed_masks = shard(processed_masks) + + >>> images = pipeline( + ... prompt_ids, processed_masks, processed_masked_images, params, prng_seed, num_inference_steps, jit=True + ... ).images + >>> images = pipeline.numpy_to_pil(np.asarray(images.reshape((num_samples,) + images.shape[-3:]))) + ``` +""" + + +class FlaxStableDiffusionInpaintPipeline(FlaxDiffusionPipeline): + r""" + Flax-based pipeline for text-guided image inpainting using Stable Diffusion. + + > [!WARNING] > 🧪 This is an experimental feature! + + This model inherits from [`FlaxDiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`FlaxAutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.FlaxCLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`FlaxUNet2DConditionModel`]): + A `FlaxUNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`FlaxDDIMScheduler`], [`FlaxLMSDiscreteScheduler`], [`FlaxPNDMScheduler`], or + [`FlaxDPMSolverMultistepScheduler`]. + safety_checker ([`FlaxStableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + def __init__( + self, + vae: FlaxAutoencoderKL, + text_encoder: FlaxCLIPTextModel, + tokenizer: CLIPTokenizer, + unet: FlaxUNet2DConditionModel, + scheduler: Union[ + FlaxDDIMScheduler, FlaxPNDMScheduler, FlaxLMSDiscreteScheduler, FlaxDPMSolverMultistepScheduler + ], + safety_checker: FlaxStableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + dtype: jnp.dtype = jnp.float32, + ): + super().__init__() + self.dtype = dtype + + if safety_checker is None: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + is_unet_sample_size_less_64 = ( + unet is not None and hasattr(unet.config, "sample_size") and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely .If you're checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + + def prepare_inputs( + self, + prompt: Union[str, List[str]], + image: Union[Image.Image, List[Image.Image]], + mask: Union[Image.Image, List[Image.Image]], + ): + if not isinstance(prompt, (str, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if not isinstance(image, (Image.Image, list)): + raise ValueError(f"image has to be of type `PIL.Image.Image` or list but is {type(image)}") + + if isinstance(image, Image.Image): + image = [image] + + if not isinstance(mask, (Image.Image, list)): + raise ValueError(f"image has to be of type `PIL.Image.Image` or list but is {type(image)}") + + if isinstance(mask, Image.Image): + mask = [mask] + + processed_images = jnp.concatenate([preprocess_image(img, jnp.float32) for img in image]) + processed_masks = jnp.concatenate([preprocess_mask(m, jnp.float32) for m in mask]) + # processed_masks[processed_masks < 0.5] = 0 + processed_masks = processed_masks.at[processed_masks < 0.5].set(0) + # processed_masks[processed_masks >= 0.5] = 1 + processed_masks = processed_masks.at[processed_masks >= 0.5].set(1) + + processed_masked_images = processed_images * (processed_masks < 0.5) + + text_input = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="np", + ) + return text_input.input_ids, processed_masked_images, processed_masks + + def _get_has_nsfw_concepts(self, features, params): + has_nsfw_concepts = self.safety_checker(features, params) + return has_nsfw_concepts + + def _run_safety_checker(self, images, safety_model_params, jit=False): + # safety_model_params should already be replicated when jit is True + pil_images = [Image.fromarray(image) for image in images] + features = self.feature_extractor(pil_images, return_tensors="np").pixel_values + + if jit: + features = shard(features) + has_nsfw_concepts = _p_get_has_nsfw_concepts(self, features, safety_model_params) + has_nsfw_concepts = unshard(has_nsfw_concepts) + safety_model_params = unreplicate(safety_model_params) + else: + has_nsfw_concepts = self._get_has_nsfw_concepts(features, safety_model_params) + + images_was_copied = False + for idx, has_nsfw_concept in enumerate(has_nsfw_concepts): + if has_nsfw_concept: + if not images_was_copied: + images_was_copied = True + images = images.copy() + + images[idx] = np.zeros(images[idx].shape, dtype=np.uint8) # black image + + if any(has_nsfw_concepts): + warnings.warn( + "Potential NSFW content was detected in one or more images. A black image will be returned" + " instead. Try again with a different prompt and/or seed." + ) + + return images, has_nsfw_concepts + + def _generate( + self, + prompt_ids: jnp.ndarray, + mask: jnp.ndarray, + masked_image: jnp.ndarray, + params: Union[Dict, FrozenDict], + prng_seed: jax.Array, + num_inference_steps: int, + height: int, + width: int, + guidance_scale: float, + latents: Optional[jnp.ndarray] = None, + neg_prompt_ids: Optional[jnp.ndarray] = None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + # get prompt text embeddings + prompt_embeds = self.text_encoder(prompt_ids, params=params["text_encoder"])[0] + + # TODO: currently it is assumed `do_classifier_free_guidance = guidance_scale > 1.0` + # implement this conditional `do_classifier_free_guidance = guidance_scale > 1.0` + batch_size = prompt_ids.shape[0] + + max_length = prompt_ids.shape[-1] + + if neg_prompt_ids is None: + uncond_input = self.tokenizer( + [""] * batch_size, padding="max_length", max_length=max_length, return_tensors="np" + ).input_ids + else: + uncond_input = neg_prompt_ids + negative_prompt_embeds = self.text_encoder(uncond_input, params=params["text_encoder"])[0] + context = jnp.concatenate([negative_prompt_embeds, prompt_embeds]) + + latents_shape = ( + batch_size, + self.vae.config.latent_channels, + height // self.vae_scale_factor, + width // self.vae_scale_factor, + ) + if latents is None: + latents = jax.random.normal(prng_seed, shape=latents_shape, dtype=self.dtype) + else: + if latents.shape != latents_shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {latents_shape}") + + prng_seed, mask_prng_seed = jax.random.split(prng_seed) + + masked_image_latent_dist = self.vae.apply( + {"params": params["vae"]}, masked_image, method=self.vae.encode + ).latent_dist + masked_image_latents = masked_image_latent_dist.sample(key=mask_prng_seed).transpose((0, 3, 1, 2)) + masked_image_latents = self.vae.config.scaling_factor * masked_image_latents + del mask_prng_seed + + mask = jax.image.resize(mask, (*mask.shape[:-2], *masked_image_latents.shape[-2:]), method="nearest") + + # 8. Check that sizes of mask, masked image and latents match + num_channels_latents = self.vae.config.latent_channels + num_channels_mask = mask.shape[1] + num_channels_masked_image = masked_image_latents.shape[1] + if num_channels_latents + num_channels_mask + num_channels_masked_image != self.unet.config.in_channels: + raise ValueError( + f"Incorrect configuration settings! The config of `pipeline.unet`: {self.unet.config} expects" + f" {self.unet.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_mask`: {num_channels_mask} + `num_channels_masked_image`: {num_channels_masked_image}" + f" = {num_channels_latents + num_channels_masked_image + num_channels_mask}. Please verify the config of" + " `pipeline.unet` or your `mask_image` or `image` input." + ) + + def loop_body(step, args): + latents, mask, masked_image_latents, scheduler_state = args + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + latents_input = jnp.concatenate([latents] * 2) + mask_input = jnp.concatenate([mask] * 2) + masked_image_latents_input = jnp.concatenate([masked_image_latents] * 2) + + t = jnp.array(scheduler_state.timesteps, dtype=jnp.int32)[step] + timestep = jnp.broadcast_to(t, latents_input.shape[0]) + + latents_input = self.scheduler.scale_model_input(scheduler_state, latents_input, t) + # concat latents, mask, masked_image_latents in the channel dimension + latents_input = jnp.concatenate([latents_input, mask_input, masked_image_latents_input], axis=1) + + # predict the noise residual + noise_pred = self.unet.apply( + {"params": params["unet"]}, + jnp.array(latents_input), + jnp.array(timestep, dtype=jnp.int32), + encoder_hidden_states=context, + ).sample + # perform guidance + noise_pred_uncond, noise_prediction_text = jnp.split(noise_pred, 2, axis=0) + noise_pred = noise_pred_uncond + guidance_scale * (noise_prediction_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents, scheduler_state = self.scheduler.step(scheduler_state, noise_pred, t, latents).to_tuple() + return latents, mask, masked_image_latents, scheduler_state + + scheduler_state = self.scheduler.set_timesteps( + params["scheduler"], num_inference_steps=num_inference_steps, shape=latents.shape + ) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * params["scheduler"].init_noise_sigma + + if DEBUG: + # run with python for loop + for i in range(num_inference_steps): + latents, mask, masked_image_latents, scheduler_state = loop_body( + i, (latents, mask, masked_image_latents, scheduler_state) + ) + else: + latents, _, _, _ = jax.lax.fori_loop( + 0, num_inference_steps, loop_body, (latents, mask, masked_image_latents, scheduler_state) + ) + + # scale and decode the image latents with vae + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.apply({"params": params["vae"]}, latents, method=self.vae.decode).sample + + image = (image / 2 + 0.5).clip(0, 1).transpose(0, 2, 3, 1) + return image + + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt_ids: jnp.ndarray, + mask: jnp.ndarray, + masked_image: jnp.ndarray, + params: Union[Dict, FrozenDict], + prng_seed: jax.Array, + num_inference_steps: int = 50, + height: Optional[int] = None, + width: Optional[int] = None, + guidance_scale: Union[float, jnp.ndarray] = 7.5, + latents: jnp.ndarray = None, + neg_prompt_ids: jnp.ndarray = None, + return_dict: bool = True, + jit: bool = False, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide image generation. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. This parameter is modulated by `strength`. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + latents (`jnp.ndarray`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + array is generated by sampling using the supplied random `generator`. + jit (`bool`, defaults to `False`): + Whether to run `pmap` versions of the generation and safety scoring functions. + + > [!WARNING] > This argument exists because `__call__` is not yet end-to-end pmap-able. It will be + removed in a > future release. + + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] instead of + a plain tuple. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.FlaxStableDiffusionPipelineOutput`] is + returned, otherwise a `tuple` is returned where the first element is a list with the generated images + and the second element is a list of `bool`s indicating whether the corresponding generated image + contains "not-safe-for-work" (nsfw) content. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + masked_image = jax.image.resize(masked_image, (*masked_image.shape[:-2], height, width), method="bicubic") + mask = jax.image.resize(mask, (*mask.shape[:-2], height, width), method="nearest") + + if isinstance(guidance_scale, float): + # Convert to a tensor so each device gets a copy. Follow the prompt_ids for + # shape information, as they may be sharded (when `jit` is `True`), or not. + guidance_scale = jnp.array([guidance_scale] * prompt_ids.shape[0]) + if len(prompt_ids.shape) > 2: + # Assume sharded + guidance_scale = guidance_scale[:, None] + + if jit: + images = _p_generate( + self, + prompt_ids, + mask, + masked_image, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + ) + else: + images = self._generate( + prompt_ids, + mask, + masked_image, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + ) + + if self.safety_checker is not None: + safety_params = params["safety_checker"] + images_uint8_casted = (images * 255).round().astype("uint8") + num_devices, batch_size = images.shape[:2] + + images_uint8_casted = np.asarray(images_uint8_casted).reshape(num_devices * batch_size, height, width, 3) + images_uint8_casted, has_nsfw_concept = self._run_safety_checker(images_uint8_casted, safety_params, jit) + images = np.asarray(images) + + # block images + if any(has_nsfw_concept): + for i, is_nsfw in enumerate(has_nsfw_concept): + if is_nsfw: + images[i] = np.asarray(images_uint8_casted[i]) + + images = images.reshape(num_devices, batch_size, height, width, 3) + else: + images = np.asarray(images) + has_nsfw_concept = False + + if not return_dict: + return (images, has_nsfw_concept) + + return FlaxStableDiffusionPipelineOutput(images=images, nsfw_content_detected=has_nsfw_concept) + + +# Static argnums are pipe, num_inference_steps, height, width. A change would trigger recompilation. +# Non-static args are (sharded) input tensors mapped over their first dimension (hence, `0`). +@partial( + jax.pmap, + in_axes=(None, 0, 0, 0, 0, 0, None, None, None, 0, 0, 0), + static_broadcasted_argnums=(0, 6, 7, 8), +) +def _p_generate( + pipe, + prompt_ids, + mask, + masked_image, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, +): + return pipe._generate( + prompt_ids, + mask, + masked_image, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + ) + + +@partial(jax.pmap, static_broadcasted_argnums=(0,)) +def _p_get_has_nsfw_concepts(pipe, features, params): + return pipe._get_has_nsfw_concepts(features, params) + + +def unshard(x: jnp.ndarray): + # einops.rearrange(x, 'd b ... -> (d b) ...') + num_devices, batch_size = x.shape[:2] + rest = x.shape[2:] + return x.reshape(num_devices * batch_size, *rest) + + +def preprocess_image(image, dtype): + w, h = image.size + w, h = (x - x % 32 for x in (w, h)) # resize to integer multiple of 32 + image = image.resize((w, h), resample=PIL_INTERPOLATION["lanczos"]) + image = jnp.array(image).astype(dtype) / 255.0 + image = image[None].transpose(0, 3, 1, 2) + return 2.0 * image - 1.0 + + +def preprocess_mask(mask, dtype): + w, h = mask.size + w, h = (x - x % 32 for x in (w, h)) # resize to integer multiple of 32 + mask = mask.resize((w, h)) + mask = jnp.array(mask.convert("L")).astype(dtype) / 255.0 + mask = jnp.expand_dims(mask, axis=(0, 1)) + + return mask diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py new file mode 100644 index 0000000000000000000000000000000000000000..6ebe0986a1ab6ca8f6a2aec91181afeb4462a15f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion.py @@ -0,0 +1,488 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Callable, List, Optional, Union + +import numpy as np +import torch +from transformers import CLIPImageProcessor, CLIPTokenizer + +from ...configuration_utils import FrozenDict +from ...schedulers import DDIMScheduler, LMSDiscreteScheduler, PNDMScheduler +from ...utils import deprecate, logging +from ..onnx_utils import ORT_TO_NP_TYPE, OnnxRuntimeModel +from ..pipeline_utils import DiffusionPipeline +from . import StableDiffusionPipelineOutput + + +logger = logging.get_logger(__name__) + + +class OnnxStableDiffusionPipeline(DiffusionPipeline): + vae_encoder: OnnxRuntimeModel + vae_decoder: OnnxRuntimeModel + text_encoder: OnnxRuntimeModel + tokenizer: CLIPTokenizer + unet: OnnxRuntimeModel + scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler] + safety_checker: OnnxRuntimeModel + feature_extractor: CLIPImageProcessor + + _optional_components = ["safety_checker", "feature_extractor"] + _is_onnx = True + + def __init__( + self, + vae_encoder: OnnxRuntimeModel, + vae_decoder: OnnxRuntimeModel, + text_encoder: OnnxRuntimeModel, + tokenizer: CLIPTokenizer, + unet: OnnxRuntimeModel, + scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler], + safety_checker: OnnxRuntimeModel, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "clip_sample", False) is True: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`." + " `clip_sample` should be set to False in the configuration file. Please make sure to update the" + " config accordingly as not setting `clip_sample` in the config might lead to incorrect results in" + " future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very" + " nice if you could open a Pull request for the `scheduler/scheduler_config.json` file" + ) + deprecate("clip_sample not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["clip_sample"] = False + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae_encoder=vae_encoder, + vae_decoder=vae_decoder, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + def _encode_prompt( + self, + prompt: Union[str, List[str]], + num_images_per_prompt: Optional[int], + do_classifier_free_guidance: bool, + negative_prompt: Optional[str], + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`): + prompt to be encoded + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + prompt_embeds (`np.ndarray`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`np.ndarray`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + """ + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="np", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="max_length", return_tensors="np").input_ids + + if not np.array_equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = self.text_encoder(input_ids=text_input_ids.astype(np.int32))[0] + + prompt_embeds = np.repeat(prompt_embeds, num_images_per_prompt, axis=0) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] * batch_size + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="np", + ) + negative_prompt_embeds = self.text_encoder(input_ids=uncond_input.input_ids.astype(np.int32))[0] + + if do_classifier_free_guidance: + negative_prompt_embeds = np.repeat(negative_prompt_embeds, num_images_per_prompt, axis=0) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = np.concatenate([negative_prompt_embeds, prompt_embeds]) + + return prompt_embeds + + def check_inputs( + self, + prompt: Union[str, List[str]], + height: Optional[int], + width: Optional[int], + callback_steps: int, + negative_prompt: Optional[str] = None, + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = 512, + width: Optional[int] = 512, + num_inference_steps: Optional[int] = 50, + guidance_scale: Optional[float] = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: Optional[float] = 0.0, + generator: Optional[np.random.RandomState] = None, + latents: Optional[np.ndarray] = None, + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, np.ndarray], None]] = None, + callback_steps: int = 1, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + image (`PIL.Image.Image` or List[`PIL.Image.Image`] or `torch.Tensor`): + `Image`, or tensor representing an image batch which will be upscaled. * + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds`. instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` + is less than `1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`np.random.RandomState`, *optional*): + One or a list of [numpy generator(s)](TODO) to make generation deterministic. + latents (`np.ndarray`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`np.ndarray`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`np.ndarray`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. + When returning a tuple, the first element is a list with the generated images, and the second element is a + list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" + (nsfw) content, according to the `safety_checker`. + """ + + # check inputs. Raise error if not correct + self.check_inputs( + prompt, height, width, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds + ) + + # define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if generator is None: + generator = np.random + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + prompt_embeds = self._encode_prompt( + prompt, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + # get the initial random noise unless the user supplied it + latents_dtype = prompt_embeds.dtype + latents_shape = (batch_size * num_images_per_prompt, 4, height // 8, width // 8) + if latents is None: + latents = generator.randn(*latents_shape).astype(latents_dtype) + elif latents.shape != latents_shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {latents_shape}") + + # set timesteps + self.scheduler.set_timesteps(num_inference_steps) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + timestep_dtype = next( + (input.type for input in self.unet.model.get_inputs() if input.name == "timestep"), "tensor(float)" + ) + timestep_dtype = ORT_TO_NP_TYPE[timestep_dtype] + + for i, t in enumerate(self.progress_bar(self.scheduler.timesteps)): + # expand the latents if we are doing classifier free guidance + latent_model_input = np.concatenate([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(torch.from_numpy(latent_model_input), t) + latent_model_input = latent_model_input.cpu().numpy() + + # predict the noise residual + timestep = np.array([t], dtype=timestep_dtype) + noise_pred = self.unet(sample=latent_model_input, timestep=timestep, encoder_hidden_states=prompt_embeds) + noise_pred = noise_pred[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = np.split(noise_pred, 2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + scheduler_output = self.scheduler.step( + torch.from_numpy(noise_pred), t, torch.from_numpy(latents), **extra_step_kwargs + ) + latents = scheduler_output.prev_sample.numpy() + + # call the callback, if provided + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + latents = 1 / 0.18215 * latents + # image = self.vae_decoder(latent_sample=latents)[0] + # it seems likes there is a strange result for using half-precision vae decoder if batchsize>1 + image = np.concatenate( + [self.vae_decoder(latent_sample=latents[i : i + 1])[0] for i in range(latents.shape[0])] + ) + + image = np.clip(image / 2 + 0.5, 0, 1) + image = image.transpose((0, 2, 3, 1)) + + if self.safety_checker is not None: + safety_checker_input = self.feature_extractor( + self.numpy_to_pil(image), return_tensors="np" + ).pixel_values.astype(image.dtype) + + images, has_nsfw_concept = [], [] + for i in range(image.shape[0]): + image_i, has_nsfw_concept_i = self.safety_checker( + clip_input=safety_checker_input[i : i + 1], images=image[i : i + 1] + ) + images.append(image_i) + has_nsfw_concept.append(has_nsfw_concept_i[0]) + image = np.concatenate(images) + else: + has_nsfw_concept = None + + if output_type == "pil": + image = self.numpy_to_pil(image) + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) + + +class StableDiffusionOnnxPipeline(OnnxStableDiffusionPipeline): + def __init__( + self, + vae_encoder: OnnxRuntimeModel, + vae_decoder: OnnxRuntimeModel, + text_encoder: OnnxRuntimeModel, + tokenizer: CLIPTokenizer, + unet: OnnxRuntimeModel, + scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler], + safety_checker: OnnxRuntimeModel, + feature_extractor: CLIPImageProcessor, + ): + deprecation_message = "Please use `OnnxStableDiffusionPipeline` instead of `StableDiffusionOnnxPipeline`." + deprecate("StableDiffusionOnnxPipeline", "1.0.0", deprecation_message) + super().__init__( + vae_encoder=vae_encoder, + vae_decoder=vae_decoder, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_img2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_img2img.py new file mode 100644 index 0000000000000000000000000000000000000000..d63bf3bf456459317790668ca8a7a39eb8024d69 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_img2img.py @@ -0,0 +1,550 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Callable, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTokenizer + +from ...configuration_utils import FrozenDict +from ...schedulers import DDIMScheduler, LMSDiscreteScheduler, PNDMScheduler +from ...utils import PIL_INTERPOLATION, deprecate, logging +from ..onnx_utils import ORT_TO_NP_TYPE, OnnxRuntimeModel +from ..pipeline_utils import DiffusionPipeline +from . import StableDiffusionPipelineOutput + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess with 8->64 +def preprocess(image): + deprecation_message = "The preprocess method is deprecated and will be removed in diffusers 1.0.0. Please use VaeImageProcessor.preprocess(...) instead" + deprecate("preprocess", "1.0.0", deprecation_message, standard_warn=False) + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + w, h = image[0].size + w, h = (x - x % 64 for x in (w, h)) # resize to integer multiple of 64 + + image = [np.array(i.resize((w, h), resample=PIL_INTERPOLATION["lanczos"]))[None, :] for i in image] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = 2.0 * image - 1.0 + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + image = torch.cat(image, dim=0) + return image + + +class OnnxStableDiffusionImg2ImgPipeline(DiffusionPipeline): + r""" + Pipeline for text-guided image to image generation using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please, refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + details. + feature_extractor ([`CLIPImageProcessor`]): + Model that extracts features from generated images to be used as inputs for the `safety_checker`. + """ + + vae_encoder: OnnxRuntimeModel + vae_decoder: OnnxRuntimeModel + text_encoder: OnnxRuntimeModel + tokenizer: CLIPTokenizer + unet: OnnxRuntimeModel + scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler] + safety_checker: OnnxRuntimeModel + feature_extractor: CLIPImageProcessor + + _optional_components = ["safety_checker", "feature_extractor"] + _is_onnx = True + + def __init__( + self, + vae_encoder: OnnxRuntimeModel, + vae_decoder: OnnxRuntimeModel, + text_encoder: OnnxRuntimeModel, + tokenizer: CLIPTokenizer, + unet: OnnxRuntimeModel, + scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler], + safety_checker: OnnxRuntimeModel, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "clip_sample", False) is True: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`." + " `clip_sample` should be set to False in the configuration file. Please make sure to update the" + " config accordingly as not setting `clip_sample` in the config might lead to incorrect results in" + " future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very" + " nice if you could open a Pull request for the `scheduler/scheduler_config.json` file" + ) + deprecate("clip_sample not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["clip_sample"] = False + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae_encoder=vae_encoder, + vae_decoder=vae_decoder, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_onnx_stable_diffusion.OnnxStableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt: Union[str, List[str]], + num_images_per_prompt: Optional[int], + do_classifier_free_guidance: bool, + negative_prompt: Optional[str], + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`): + prompt to be encoded + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + prompt_embeds (`np.ndarray`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`np.ndarray`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + """ + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="np", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="max_length", return_tensors="np").input_ids + + if not np.array_equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = self.text_encoder(input_ids=text_input_ids.astype(np.int32))[0] + + prompt_embeds = np.repeat(prompt_embeds, num_images_per_prompt, axis=0) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] * batch_size + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="np", + ) + negative_prompt_embeds = self.text_encoder(input_ids=uncond_input.input_ids.astype(np.int32))[0] + + if do_classifier_free_guidance: + negative_prompt_embeds = np.repeat(negative_prompt_embeds, num_images_per_prompt, axis=0) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = np.concatenate([negative_prompt_embeds, prompt_embeds]) + + return prompt_embeds + + def check_inputs( + self, + prompt: Union[str, List[str]], + callback_steps: int, + negative_prompt: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + ): + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + def __call__( + self, + prompt: Union[str, List[str]], + image: Union[np.ndarray, PIL.Image.Image] = None, + strength: float = 0.8, + num_inference_steps: Optional[int] = 50, + guidance_scale: Optional[float] = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: Optional[float] = 0.0, + generator: Optional[np.random.RandomState] = None, + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, np.ndarray], None]] = None, + callback_steps: int = 1, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation. + image (`np.ndarray` or `PIL.Image.Image`): + `Image`, or tensor representing an image batch, that will be used as the starting point for the + process. + strength (`float`, *optional*, defaults to 0.8): + Conceptually, indicates how much to transform the reference `image`. Must be between 0 and 1. `image` + will be used as a starting point, adding more noise to it the larger the `strength`. The number of + denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise will + be maximum and the denoising process will run for the full number of iterations specified in + `num_inference_steps`. A value of 1, therefore, essentially ignores `image`. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. This parameter will be modulated by `strength`. + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`np.random.RandomState`, *optional*): + A np.random.RandomState to make generation deterministic. + prompt_embeds (`np.ndarray`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`np.ndarray`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: np.ndarray)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. + When returning a tuple, the first element is a list with the generated images, and the second element is a + list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" + (nsfw) content, according to the `safety_checker`. + """ + + # check inputs. Raise error if not correct + self.check_inputs(prompt, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds) + + # define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if generator is None: + generator = np.random + + # set timesteps + self.scheduler.set_timesteps(num_inference_steps) + + image = preprocess(image).cpu().numpy() + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + prompt_embeds = self._encode_prompt( + prompt, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + latents_dtype = prompt_embeds.dtype + image = image.astype(latents_dtype) + # encode the init image into latents and scale the latents + init_latents = self.vae_encoder(sample=image)[0] + init_latents = 0.18215 * init_latents + + if isinstance(prompt, str): + prompt = [prompt] + if len(prompt) > init_latents.shape[0] and len(prompt) % init_latents.shape[0] == 0: + # expand init_latents for batch_size + deprecation_message = ( + f"You have passed {len(prompt)} text prompts (`prompt`), but only {init_latents.shape[0]} initial" + " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" + " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" + " your script to pass as many initial images as text prompts to suppress this warning." + ) + deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) + additional_image_per_prompt = len(prompt) // init_latents.shape[0] + init_latents = np.concatenate([init_latents] * additional_image_per_prompt * num_images_per_prompt, axis=0) + elif len(prompt) > init_latents.shape[0] and len(prompt) % init_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {len(prompt)} text prompts." + ) + else: + init_latents = np.concatenate([init_latents] * num_images_per_prompt, axis=0) + + # get the original timestep using init_timestep + offset = self.scheduler.config.get("steps_offset", 0) + init_timestep = int(num_inference_steps * strength) + offset + init_timestep = min(init_timestep, num_inference_steps) + + timesteps = self.scheduler.timesteps.numpy()[-init_timestep] + timesteps = np.array([timesteps] * batch_size * num_images_per_prompt) + + # add noise to latents using the timesteps + noise = generator.randn(*init_latents.shape).astype(latents_dtype) + init_latents = self.scheduler.add_noise( + torch.from_numpy(init_latents), torch.from_numpy(noise), torch.from_numpy(timesteps) + ) + init_latents = init_latents.numpy() + + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + latents = init_latents + + t_start = max(num_inference_steps - init_timestep + offset, 0) + timesteps = self.scheduler.timesteps[t_start:].numpy() + + timestep_dtype = next( + (input.type for input in self.unet.model.get_inputs() if input.name == "timestep"), "tensor(float)" + ) + timestep_dtype = ORT_TO_NP_TYPE[timestep_dtype] + + for i, t in enumerate(self.progress_bar(timesteps)): + # expand the latents if we are doing classifier free guidance + latent_model_input = np.concatenate([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(torch.from_numpy(latent_model_input), t) + latent_model_input = latent_model_input.cpu().numpy() + + # predict the noise residual + timestep = np.array([t], dtype=timestep_dtype) + noise_pred = self.unet(sample=latent_model_input, timestep=timestep, encoder_hidden_states=prompt_embeds)[ + 0 + ] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = np.split(noise_pred, 2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + scheduler_output = self.scheduler.step( + torch.from_numpy(noise_pred), t, torch.from_numpy(latents), **extra_step_kwargs + ) + latents = scheduler_output.prev_sample.numpy() + + # call the callback, if provided + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + latents = 1 / 0.18215 * latents + # image = self.vae_decoder(latent_sample=latents)[0] + # it seems likes there is a strange result for using half-precision vae decoder if batchsize>1 + image = np.concatenate( + [self.vae_decoder(latent_sample=latents[i : i + 1])[0] for i in range(latents.shape[0])] + ) + + image = np.clip(image / 2 + 0.5, 0, 1) + image = image.transpose((0, 2, 3, 1)) + + if self.safety_checker is not None: + safety_checker_input = self.feature_extractor( + self.numpy_to_pil(image), return_tensors="np" + ).pixel_values.astype(image.dtype) + # safety_checker does not support batched inputs yet + images, has_nsfw_concept = [], [] + for i in range(image.shape[0]): + image_i, has_nsfw_concept_i = self.safety_checker( + clip_input=safety_checker_input[i : i + 1], images=image[i : i + 1] + ) + images.append(image_i) + has_nsfw_concept.append(has_nsfw_concept_i[0]) + image = np.concatenate(images) + else: + has_nsfw_concept = None + + if output_type == "pil": + image = self.numpy_to_pil(image) + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_inpaint.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_inpaint.py new file mode 100644 index 0000000000000000000000000000000000000000..158bcabbebfd9ad8c6a81cfed8dd823489dbac57 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_inpaint.py @@ -0,0 +1,564 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Callable, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTokenizer + +from ...configuration_utils import FrozenDict +from ...schedulers import DDIMScheduler, LMSDiscreteScheduler, PNDMScheduler +from ...utils import PIL_INTERPOLATION, deprecate, logging +from ..onnx_utils import ORT_TO_NP_TYPE, OnnxRuntimeModel +from ..pipeline_utils import DiffusionPipeline +from . import StableDiffusionPipelineOutput + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +NUM_UNET_INPUT_CHANNELS = 9 +NUM_LATENT_CHANNELS = 4 + + +def prepare_mask_and_masked_image(image, mask, latents_shape): + image = np.array(image.convert("RGB").resize((latents_shape[1] * 8, latents_shape[0] * 8))) + image = image[None].transpose(0, 3, 1, 2) + image = image.astype(np.float32) / 127.5 - 1.0 + + image_mask = np.array(mask.convert("L").resize((latents_shape[1] * 8, latents_shape[0] * 8))) + masked_image = image * (image_mask < 127.5) + + mask = mask.resize((latents_shape[1], latents_shape[0]), PIL_INTERPOLATION["nearest"]) + mask = np.array(mask.convert("L")) + mask = mask.astype(np.float32) / 255.0 + mask = mask[None, None] + mask[mask < 0.5] = 0 + mask[mask >= 0.5] = 1 + + return mask, masked_image + + +class OnnxStableDiffusionInpaintPipeline(DiffusionPipeline): + r""" + Pipeline for text-guided image inpainting using Stable Diffusion. *This is an experimental feature*. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please, refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + details. + feature_extractor ([`CLIPImageProcessor`]): + Model that extracts features from generated images to be used as inputs for the `safety_checker`. + """ + + vae_encoder: OnnxRuntimeModel + vae_decoder: OnnxRuntimeModel + text_encoder: OnnxRuntimeModel + tokenizer: CLIPTokenizer + unet: OnnxRuntimeModel + scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler] + safety_checker: OnnxRuntimeModel + feature_extractor: CLIPImageProcessor + + _optional_components = ["safety_checker", "feature_extractor"] + _is_onnx = True + + def __init__( + self, + vae_encoder: OnnxRuntimeModel, + vae_decoder: OnnxRuntimeModel, + text_encoder: OnnxRuntimeModel, + tokenizer: CLIPTokenizer, + unet: OnnxRuntimeModel, + scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler], + safety_checker: OnnxRuntimeModel, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + logger.info("`OnnxStableDiffusionInpaintPipeline` is experimental and will very likely change in the future.") + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "clip_sample", False) is True: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`." + " `clip_sample` should be set to False in the configuration file. Please make sure to update the" + " config accordingly as not setting `clip_sample` in the config might lead to incorrect results in" + " future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very" + " nice if you could open a Pull request for the `scheduler/scheduler_config.json` file" + ) + deprecate("clip_sample not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["clip_sample"] = False + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae_encoder=vae_encoder, + vae_decoder=vae_decoder, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_onnx_stable_diffusion.OnnxStableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt: Union[str, List[str]], + num_images_per_prompt: Optional[int], + do_classifier_free_guidance: bool, + negative_prompt: Optional[str], + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`): + prompt to be encoded + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + prompt_embeds (`np.ndarray`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`np.ndarray`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + """ + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="np", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="max_length", return_tensors="np").input_ids + + if not np.array_equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = self.text_encoder(input_ids=text_input_ids.astype(np.int32))[0] + + prompt_embeds = np.repeat(prompt_embeds, num_images_per_prompt, axis=0) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] * batch_size + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="np", + ) + negative_prompt_embeds = self.text_encoder(input_ids=uncond_input.input_ids.astype(np.int32))[0] + + if do_classifier_free_guidance: + negative_prompt_embeds = np.repeat(negative_prompt_embeds, num_images_per_prompt, axis=0) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = np.concatenate([negative_prompt_embeds, prompt_embeds]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_onnx_stable_diffusion.OnnxStableDiffusionPipeline.check_inputs + def check_inputs( + self, + prompt: Union[str, List[str]], + height: Optional[int], + width: Optional[int], + callback_steps: int, + negative_prompt: Optional[str] = None, + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]], + image: PIL.Image.Image, + mask_image: PIL.Image.Image, + height: Optional[int] = 512, + width: Optional[int] = 512, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[np.random.RandomState] = None, + latents: Optional[np.ndarray] = None, + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, np.ndarray], None]] = None, + callback_steps: int = 1, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation. + image (`PIL.Image.Image`): + `Image`, or tensor representing an image batch which will be inpainted, *i.e.* parts of the image will + be masked out with `mask_image` and repainted according to `prompt`. + mask_image (`PIL.Image.Image`): + `Image`, or tensor representing an image batch, to mask `image`. White pixels in the mask will be + repainted, while black pixels will be preserved. If `mask_image` is a PIL image, it will be converted + to a single channel (luminance) before use. If it's a tensor, it should contain one color channel (L) + instead of 3, so the expected shape would be `(B, H, W, 1)`. + height (`int`, *optional*, defaults to 512): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to 512): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`np.random.RandomState`, *optional*): + A np.random.RandomState to make generation deterministic. + latents (`np.ndarray`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`np.ndarray`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`np.ndarray`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: np.ndarray)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. + When returning a tuple, the first element is a list with the generated images, and the second element is a + list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" + (nsfw) content, according to the `safety_checker`. + """ + + # check inputs. Raise error if not correct + self.check_inputs( + prompt, height, width, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds + ) + + # define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if generator is None: + generator = np.random + + # set timesteps + self.scheduler.set_timesteps(num_inference_steps) + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + prompt_embeds = self._encode_prompt( + prompt, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + num_channels_latents = NUM_LATENT_CHANNELS + latents_shape = (batch_size * num_images_per_prompt, num_channels_latents, height // 8, width // 8) + latents_dtype = prompt_embeds.dtype + if latents is None: + latents = generator.randn(*latents_shape).astype(latents_dtype) + else: + if latents.shape != latents_shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {latents_shape}") + + # prepare mask and masked_image + mask, masked_image = prepare_mask_and_masked_image(image, mask_image, latents_shape[-2:]) + mask = mask.astype(latents.dtype) + masked_image = masked_image.astype(latents.dtype) + + masked_image_latents = self.vae_encoder(sample=masked_image)[0] + masked_image_latents = 0.18215 * masked_image_latents + + # duplicate mask and masked_image_latents for each generation per prompt + mask = mask.repeat(batch_size * num_images_per_prompt, 0) + masked_image_latents = masked_image_latents.repeat(batch_size * num_images_per_prompt, 0) + + mask = np.concatenate([mask] * 2) if do_classifier_free_guidance else mask + masked_image_latents = ( + np.concatenate([masked_image_latents] * 2) if do_classifier_free_guidance else masked_image_latents + ) + + num_channels_mask = mask.shape[1] + num_channels_masked_image = masked_image_latents.shape[1] + + unet_input_channels = NUM_UNET_INPUT_CHANNELS + if num_channels_latents + num_channels_mask + num_channels_masked_image != unet_input_channels: + raise ValueError( + "Incorrect configuration settings! The config of `pipeline.unet` expects" + f" {unet_input_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_mask`: {num_channels_mask} + `num_channels_masked_image`: {num_channels_masked_image}" + f" = {num_channels_latents + num_channels_masked_image + num_channels_mask}. Please verify the config of" + " `pipeline.unet` or your `mask_image` or `image` input." + ) + + # set timesteps + self.scheduler.set_timesteps(num_inference_steps) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + timestep_dtype = next( + (input.type for input in self.unet.model.get_inputs() if input.name == "timestep"), "tensor(float)" + ) + timestep_dtype = ORT_TO_NP_TYPE[timestep_dtype] + + for i, t in enumerate(self.progress_bar(self.scheduler.timesteps)): + # expand the latents if we are doing classifier free guidance + latent_model_input = np.concatenate([latents] * 2) if do_classifier_free_guidance else latents + # concat latents, mask, masked_image_latnets in the channel dimension + latent_model_input = self.scheduler.scale_model_input(torch.from_numpy(latent_model_input), t) + latent_model_input = latent_model_input.cpu().numpy() + latent_model_input = np.concatenate([latent_model_input, mask, masked_image_latents], axis=1) + + # predict the noise residual + timestep = np.array([t], dtype=timestep_dtype) + noise_pred = self.unet(sample=latent_model_input, timestep=timestep, encoder_hidden_states=prompt_embeds)[ + 0 + ] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = np.split(noise_pred, 2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + scheduler_output = self.scheduler.step( + torch.from_numpy(noise_pred), t, torch.from_numpy(latents), **extra_step_kwargs + ) + latents = scheduler_output.prev_sample.numpy() + + # call the callback, if provided + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + latents = 1 / 0.18215 * latents + # image = self.vae_decoder(latent_sample=latents)[0] + # it seems likes there is a strange result for using half-precision vae decoder if batchsize>1 + image = np.concatenate( + [self.vae_decoder(latent_sample=latents[i : i + 1])[0] for i in range(latents.shape[0])] + ) + + image = np.clip(image / 2 + 0.5, 0, 1) + image = image.transpose((0, 2, 3, 1)) + + if self.safety_checker is not None: + safety_checker_input = self.feature_extractor( + self.numpy_to_pil(image), return_tensors="np" + ).pixel_values.astype(image.dtype) + # safety_checker does not support batched inputs yet + images, has_nsfw_concept = [], [] + for i in range(image.shape[0]): + image_i, has_nsfw_concept_i = self.safety_checker( + clip_input=safety_checker_input[i : i + 1], images=image[i : i + 1] + ) + images.append(image_i) + has_nsfw_concept.append(has_nsfw_concept_i[0]) + image = np.concatenate(images) + else: + has_nsfw_concept = None + + if output_type == "pil": + image = self.numpy_to_pil(image) + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_upscale.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_upscale.py new file mode 100644 index 0000000000000000000000000000000000000000..a765163175a293084ecc3d88862d0c3bbe9719a7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_upscale.py @@ -0,0 +1,586 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTokenizer + +from ...configuration_utils import FrozenDict +from ...schedulers import DDPMScheduler, KarrasDiffusionSchedulers +from ...utils import deprecate, logging +from ..onnx_utils import ORT_TO_NP_TYPE, OnnxRuntimeModel +from ..pipeline_utils import DiffusionPipeline +from . import StableDiffusionPipelineOutput + + +logger = logging.get_logger(__name__) + + +def preprocess(image): + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + w, h = image[0].size + w, h = (x - x % 64 for x in (w, h)) # resize to integer multiple of 32 + + image = [np.array(i.resize((w, h)))[None, :] for i in image] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = 2.0 * image - 1.0 + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + image = torch.cat(image, dim=0) + + return image + + +class OnnxStableDiffusionUpscalePipeline(DiffusionPipeline): + vae: OnnxRuntimeModel + text_encoder: OnnxRuntimeModel + tokenizer: CLIPTokenizer + unet: OnnxRuntimeModel + low_res_scheduler: DDPMScheduler + scheduler: KarrasDiffusionSchedulers + safety_checker: OnnxRuntimeModel + feature_extractor: CLIPImageProcessor + + _optional_components = ["safety_checker", "feature_extractor"] + _is_onnx = True + + def __init__( + self, + vae: OnnxRuntimeModel, + text_encoder: OnnxRuntimeModel, + tokenizer: Any, + unet: OnnxRuntimeModel, + low_res_scheduler: DDPMScheduler, + scheduler: KarrasDiffusionSchedulers, + safety_checker: Optional[OnnxRuntimeModel] = None, + feature_extractor: Optional[CLIPImageProcessor] = None, + max_noise_level: int = 350, + num_latent_channels=4, + num_unet_input_channels=7, + requires_safety_checker: bool = True, + ): + super().__init__() + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "clip_sample", False) is True: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`." + " `clip_sample` should be set to False in the configuration file. Please make sure to update the" + " config accordingly as not setting `clip_sample` in the config might lead to incorrect results in" + " future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very" + " nice if you could open a Pull request for the `scheduler/scheduler_config.json` file" + ) + deprecate("clip_sample not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["clip_sample"] = False + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + low_res_scheduler=low_res_scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.register_to_config( + max_noise_level=max_noise_level, + num_latent_channels=num_latent_channels, + num_unet_input_channels=num_unet_input_channels, + ) + + def check_inputs( + self, + prompt: Union[str, List[str]], + image, + noise_level, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ): + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if ( + not isinstance(image, torch.Tensor) + and not isinstance(image, PIL.Image.Image) + and not isinstance(image, np.ndarray) + and not isinstance(image, list) + ): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `np.ndarray`, `PIL.Image.Image` or `list` but is {type(image)}" + ) + + # verify batch size of prompt and image are same if image is a list or tensor or numpy array + if isinstance(image, (list, np.ndarray)): + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if isinstance(image, list): + image_batch_size = len(image) + else: + image_batch_size = image.shape[0] + if batch_size != image_batch_size: + raise ValueError( + f"`prompt` has batch size {batch_size} and `image` has batch size {image_batch_size}." + " Please make sure that passed `prompt` matches the batch size of `image`." + ) + + # check noise level + if noise_level > self.config.max_noise_level: + raise ValueError(f"`noise_level` has to be <= {self.config.max_noise_level} but is {noise_level}") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, generator, latents=None): + shape = (batch_size, num_channels_latents, height, width) + if latents is None: + latents = generator.randn(*shape).astype(dtype) + elif latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + + return latents + + def decode_latents(self, latents): + latents = 1 / 0.08333 * latents + image = self.vae(latent_sample=latents)[0] + image = np.clip(image / 2 + 0.5, 0, 1) + image = image.transpose((0, 2, 3, 1)) + return image + + def _encode_prompt( + self, + prompt: Union[str, List[str]], + num_images_per_prompt: Optional[int], + do_classifier_free_guidance: bool, + negative_prompt: Optional[str], + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`): + prompt to be encoded + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + prompt_embeds (`np.ndarray`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`np.ndarray`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + """ + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="np", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="max_length", return_tensors="np").input_ids + + if not np.array_equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = self.text_encoder(input_ids=text_input_ids.astype(np.int32))[0] + + prompt_embeds = np.repeat(prompt_embeds, num_images_per_prompt, axis=0) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] * batch_size + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="np", + ) + negative_prompt_embeds = self.text_encoder(input_ids=uncond_input.input_ids.astype(np.int32))[0] + + if do_classifier_free_guidance: + negative_prompt_embeds = np.repeat(negative_prompt_embeds, num_images_per_prompt, axis=0) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = np.concatenate([negative_prompt_embeds, prompt_embeds]) + + return prompt_embeds + + def __call__( + self, + prompt: Union[str, List[str]], + image: Union[np.ndarray, PIL.Image.Image, List[PIL.Image.Image]], + num_inference_steps: int = 75, + guidance_scale: float = 9.0, + noise_level: int = 20, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[np.random.RandomState, List[np.random.RandomState]]] = None, + latents: Optional[np.ndarray] = None, + prompt_embeds: Optional[np.ndarray] = None, + negative_prompt_embeds: Optional[np.ndarray] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, np.ndarray], None]] = None, + callback_steps: Optional[int] = 1, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation. + image (`np.ndarray` or `PIL.Image.Image`): + `Image`, or tensor representing an image batch, that will be used as the starting point for the + process. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. This parameter will be modulated by `strength`. + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + noise_level (`float`, defaults to 0.2): + Deteremines the amount of noise to add to the initial image before performing upscaling. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`np.random.RandomState`, *optional*): + A np.random.RandomState to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`np.ndarray`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`np.ndarray`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: np.ndarray)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. + When returning a tuple, the first element is a list with the generated images, and the second element is a + list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" + (nsfw) content, according to the `safety_checker`. + """ + + # 1. Check inputs + self.check_inputs( + prompt, + image, + noise_level, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if generator is None: + generator = np.random + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + prompt_embeds = self._encode_prompt( + prompt, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + latents_dtype = prompt_embeds.dtype + image = preprocess(image).cpu().numpy() + height, width = image.shape[2:] + + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + self.config.num_latent_channels, + height, + width, + latents_dtype, + generator, + ) + image = image.astype(latents_dtype) + + self.scheduler.set_timesteps(num_inference_steps) + timesteps = self.scheduler.timesteps + + # Scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + + # 5. Add noise to image + noise_level = np.array([noise_level]).astype(np.int64) + noise = generator.randn(*image.shape).astype(latents_dtype) + + image = self.low_res_scheduler.add_noise( + torch.from_numpy(image), torch.from_numpy(noise), torch.from_numpy(noise_level) + ) + image = image.numpy() + + batch_multiplier = 2 if do_classifier_free_guidance else 1 + image = np.concatenate([image] * batch_multiplier * num_images_per_prompt) + noise_level = np.concatenate([noise_level] * image.shape[0]) + + # 7. Check that sizes of image and latents match + num_channels_image = image.shape[1] + if self.config.num_latent_channels + num_channels_image != self.config.num_unet_input_channels: + raise ValueError( + "Incorrect configuration settings! The config of `pipeline.unet` expects" + f" {self.config.num_unet_input_channels} but received `num_channels_latents`: {self.config.num_latent_channels} +" + f" `num_channels_image`: {num_channels_image} " + f" = {self.config.num_latent_channels + num_channels_image}. Please verify the config of" + " `pipeline.unet` or your `image` input." + ) + + # 8. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + timestep_dtype = next( + (input.type for input in self.unet.model.get_inputs() if input.name == "timestep"), "tensor(float)" + ) + timestep_dtype = ORT_TO_NP_TYPE[timestep_dtype] + + # 9. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = np.concatenate([latents] * 2) if do_classifier_free_guidance else latents + + # concat latents, mask, masked_image_latents in the channel dimension + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + latent_model_input = np.concatenate([latent_model_input, image], axis=1) + + # timestep to tensor + timestep = np.array([t], dtype=timestep_dtype) + + # predict the noise residual + noise_pred = self.unet( + sample=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + class_labels=noise_level, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = np.split(noise_pred, 2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step( + torch.from_numpy(noise_pred), t, torch.from_numpy(latents), **extra_step_kwargs + ).prev_sample + latents = latents.numpy() + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + # 10. Post-processing + image = self.decode_latents(latents) + + if self.safety_checker is not None: + safety_checker_input = self.feature_extractor( + self.numpy_to_pil(image), return_tensors="np" + ).pixel_values.astype(image.dtype) + + images, has_nsfw_concept = [], [] + for i in range(image.shape[0]): + image_i, has_nsfw_concept_i = self.safety_checker( + clip_input=safety_checker_input[i : i + 1], images=image[i : i + 1] + ) + images.append(image_i) + has_nsfw_concept.append(has_nsfw_concept_i[0]) + image = np.concatenate(images) + else: + has_nsfw_concept = None + + if output_type == "pil": + image = self.numpy_to_pil(image) + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..5fb9b1a1412d96b69144a4c2e960dcc8b75a615c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_output.py @@ -0,0 +1,45 @@ +from dataclasses import dataclass +from typing import List, Optional, Union + +import numpy as np +import PIL.Image + +from ...utils import BaseOutput, is_flax_available + + +@dataclass +class StableDiffusionPipelineOutput(BaseOutput): + """ + Output class for Stable Diffusion pipelines. + + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or NumPy array of shape `(batch_size, height, width, + num_channels)`. + nsfw_content_detected (`List[bool]`) + List indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content or + `None` if safety checking could not be performed. + """ + + images: Union[List[PIL.Image.Image], np.ndarray] + nsfw_content_detected: Optional[List[bool]] + + +if is_flax_available(): + import flax + + @flax.struct.dataclass + class FlaxStableDiffusionPipelineOutput(BaseOutput): + """ + Output class for Flax-based Stable Diffusion pipelines. + + Args: + images (`np.ndarray`): + Denoised images of array shape of `(batch_size, height, width, num_channels)`. + nsfw_content_detected (`List[bool]`): + List indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content + or `None` if safety checking could not be performed. + """ + + images: np.ndarray + nsfw_content_detected: List[bool] diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion.py new file mode 100644 index 0000000000000000000000000000000000000000..cb97f18efeff36e031d7431f175c6146f9404c5e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion.py @@ -0,0 +1,1104 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import torch +from packaging import version +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...configuration_utils import FrozenDict +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, IPAdapterMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from .pipeline_output import StableDiffusionPipelineOutput +from .safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionPipeline + + >>> pipe = StableDiffusionPipeline.from_pretrained( + ... "stable-diffusion-v1-5/stable-diffusion-v1-5", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> prompt = "a photo of an astronaut riding a horse on mars" + >>> image = pipe(prompt).images[0] + ``` +""" + + +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + r""" + Rescales `noise_cfg` tensor based on `guidance_rescale` to improve image quality and fix overexposure. Based on + Section 3.4 from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). + + Args: + noise_cfg (`torch.Tensor`): + The predicted noise tensor for the guided diffusion process. + noise_pred_text (`torch.Tensor`): + The predicted noise tensor for the text-guided diffusion process. + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescale factor applied to the noise predictions. + + Returns: + noise_cfg (`torch.Tensor`): The rescaled noise prediction tensor. + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionPipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, + IPAdapterMixin, + FromSingleFileMixin, +): + """ + Pipeline for text-to-image generation using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->image_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "image_encoder"] + _exclude_from_cpu_offload = ["safety_checker"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + image_encoder: CLIPVisionModelWithProjection = None, + requires_safety_checker: bool = True, + ): + super().__init__() + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "clip_sample", False) is True: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`." + " `clip_sample` should be set to False in the configuration file. Please make sure to update the" + " config accordingly as not setting `clip_sample` in the config might lead to incorrect results in" + " future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very" + " nice if you could open a Pull request for the `scheduler/scheduler_config.json` file" + ) + deprecate("clip_sample not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["clip_sample"] = False + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + self._is_unet_config_sample_size_int = unet is not None and isinstance(unet.config.sample_size, int) + is_unet_sample_size_less_64 = ( + unet is not None + and hasattr(unet.config, "sample_size") + and self._is_unet_config_sample_size_int + and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely. If your checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def guidance_rescale(self): + return self._guidance_rescale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + guidance_rescale (`float`, *optional*, defaults to 0.0): + Guidance rescale factor from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when + using zero terminal SNR. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider using `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider using `callback_on_step_end`", + ) + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 0. Default height and width to unet + if not height or not width: + height = ( + self.unet.config.sample_size + if self._is_unet_config_sample_size_int + else self.unet.config.sample_size[0] + ) + width = ( + self.unet.config.sample_size + if self._is_unet_config_sample_size_int + else self.unet.config.sample_size[1] + ) + height, width = height * self.vae_scale_factor, width * self.vae_scale_factor + # to deal with lora scaling and other possible forward hooks + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + height, + width, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + ) + + self._guidance_scale = guidance_scale + self._guidance_rescale = guidance_rescale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3. Encode input prompt + lora_scale = ( + self.cross_attention_kwargs.get("scale", None) if self.cross_attention_kwargs is not None else None + ) + + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + self.do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + clip_skip=self.clip_skip, + ) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 4. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 6.1 Add image embeds for IP-Adapter + added_cond_kwargs = ( + {"image_embeds": image_embeds} + if (ip_adapter_image is not None or ip_adapter_image_embeds is not None) + else None + ) + + # 6.2 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + # 7. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + if hasattr(self.scheduler, "scale_model_input"): + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=self.cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + if self.do_classifier_free_guidance and self.guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=self.guidance_rescale) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False, generator=generator)[ + 0 + ] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_depth2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_depth2img.py new file mode 100644 index 0000000000000000000000000000000000000000..e957c6661f873f35dd81488dd40b1fd1256a3a91 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_depth2img.py @@ -0,0 +1,897 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import contextlib +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from packaging import version +from transformers import CLIPTextModel, CLIPTokenizer, DPTForDepthEstimation, DPTImageProcessor + +from ...configuration_utils import FrozenDict +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + PIL_INTERPOLATION, + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, ImagePipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess +def preprocess(image): + deprecation_message = "The preprocess method is deprecated and will be removed in diffusers 1.0.0. Please use VaeImageProcessor.preprocess(...) instead" + deprecate("preprocess", "1.0.0", deprecation_message, standard_warn=False) + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + w, h = image[0].size + w, h = (x - x % 8 for x in (w, h)) # resize to integer multiple of 8 + + image = [np.array(i.resize((w, h), resample=PIL_INTERPOLATION["lanczos"]))[None, :] for i in image] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = 2.0 * image - 1.0 + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + image = torch.cat(image, dim=0) + return image + + +class StableDiffusionDepth2ImgPipeline(DiffusionPipeline, TextualInversionLoaderMixin, StableDiffusionLoraLoaderMixin): + r""" + Pipeline for text-guided depth-based image-to-image generation using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds", "depth_mask"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + depth_estimator: DPTForDepthEstimation, + feature_extractor: DPTImageProcessor, + ): + super().__init__() + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + is_unet_sample_size_less_64 = ( + unet is not None and hasattr(unet.config, "sample_size") and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely .If you're checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + depth_estimator=depth_estimator, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + strength, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.StableDiffusionImg2ImgPipeline.get_timesteps + def get_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + + t_start = max(num_inference_steps - init_timestep, 0) + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.StableDiffusionImg2ImgPipeline.prepare_latents + def prepare_latents(self, image, timestep, batch_size, num_images_per_prompt, dtype, device, generator=None): + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + image = image.to(device=device, dtype=dtype) + + batch_size = batch_size * num_images_per_prompt + + if image.shape[1] == 4: + init_latents = image + + else: + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + elif isinstance(generator, list): + if image.shape[0] < batch_size and batch_size % image.shape[0] == 0: + image = torch.cat([image] * (batch_size // image.shape[0]), dim=0) + elif image.shape[0] < batch_size and batch_size % image.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {image.shape[0]} to effective batch_size {batch_size} " + ) + + init_latents = [ + retrieve_latents(self.vae.encode(image[i : i + 1]), generator=generator[i]) + for i in range(batch_size) + ] + init_latents = torch.cat(init_latents, dim=0) + else: + init_latents = retrieve_latents(self.vae.encode(image), generator=generator) + + init_latents = self.vae.config.scaling_factor * init_latents + + if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] == 0: + # expand init_latents for batch_size + deprecation_message = ( + f"You have passed {batch_size} text prompts (`prompt`), but only {init_latents.shape[0]} initial" + " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" + " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" + " your script to pass as many initial images as text prompts to suppress this warning." + ) + deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) + additional_image_per_prompt = batch_size // init_latents.shape[0] + init_latents = torch.cat([init_latents] * additional_image_per_prompt, dim=0) + elif batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {batch_size} text prompts." + ) + else: + init_latents = torch.cat([init_latents], dim=0) + + shape = init_latents.shape + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + + # get latents + init_latents = self.scheduler.add_noise(init_latents, noise, timestep) + latents = init_latents + + return latents + + def prepare_depth_map(self, image, depth_map, batch_size, do_classifier_free_guidance, dtype, device): + if isinstance(image, PIL.Image.Image): + image = [image] + else: + image = list(image) + + if isinstance(image[0], PIL.Image.Image): + width, height = image[0].size + elif isinstance(image[0], np.ndarray): + width, height = image[0].shape[:-1] + else: + height, width = image[0].shape[-2:] + + if depth_map is None: + pixel_values = self.feature_extractor(images=image, return_tensors="pt").pixel_values + pixel_values = pixel_values.to(device=device, dtype=dtype) + # The DPT-Hybrid model uses batch-norm layers which are not compatible with fp16. + # So we use `torch.autocast` here for half precision inference. + if torch.backends.mps.is_available(): + autocast_ctx = contextlib.nullcontext() + logger.warning( + "The DPT-Hybrid model uses batch-norm layers which are not compatible with fp16, but autocast is not yet supported on MPS." + ) + else: + autocast_ctx = torch.autocast(device.type, dtype=dtype) + + with autocast_ctx: + depth_map = self.depth_estimator(pixel_values).predicted_depth + else: + depth_map = depth_map.to(device=device, dtype=dtype) + + depth_map = torch.nn.functional.interpolate( + depth_map.unsqueeze(1), + size=(height // self.vae_scale_factor, width // self.vae_scale_factor), + mode="bicubic", + align_corners=False, + ) + + depth_min = torch.amin(depth_map, dim=[1, 2, 3], keepdim=True) + depth_max = torch.amax(depth_map, dim=[1, 2, 3], keepdim=True) + depth_map = 2.0 * (depth_map - depth_min) / (depth_max - depth_min) - 1.0 + depth_map = depth_map.to(dtype) + + # duplicate mask and masked_image_latents for each generation per prompt, using mps friendly method + if depth_map.shape[0] < batch_size: + repeat_by = batch_size // depth_map.shape[0] + depth_map = depth_map.repeat(repeat_by, 1, 1, 1) + + depth_map = torch.cat([depth_map] * 2) if do_classifier_free_guidance else depth_map + return depth_map + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]] = None, + image: PipelineImageInput = None, + depth_map: Optional[torch.Tensor] = None, + strength: float = 0.8, + num_inference_steps: Optional[int] = 50, + guidance_scale: Optional[float] = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: Optional[float] = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image` or tensor representing an image batch to be used as the starting point. Can accept image + latents as `image` only if `depth_map` is not `None`. + depth_map (`torch.Tensor`, *optional*): + Depth prediction to be used as additional conditioning for the image generation process. If not + defined, it automatically predicts the depth with `self.depth_estimator`. + strength (`float`, *optional*, defaults to 0.8): + Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a + starting point and more noise is added the higher the `strength`. The number of denoising steps depends + on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising + process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 + essentially ignores `image`. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. This parameter is modulated by `strength`. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + Examples: + + ```py + >>> import torch + >>> import requests + >>> from PIL import Image + + >>> from diffusers import StableDiffusionDepth2ImgPipeline + + >>> pipe = StableDiffusionDepth2ImgPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-2-depth", + ... torch_dtype=torch.float16, + ... ) + >>> pipe.to("cuda") + + + >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg" + >>> init_image = Image.open(requests.get(url, stream=True).raw) + >>> prompt = "two tigers" + >>> n_prompt = "bad, deformed, ugly, bad anotomy" + >>> image = pipe(prompt=prompt, image=init_image, negative_prompt=n_prompt, strength=0.7).images[0] + ``` + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + # 1. Check inputs + self.check_inputs( + prompt, + strength, + callback_steps, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + ) + + self._guidance_scale = guidance_scale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + + if image is None: + raise ValueError("`image` input cannot be undefined.") + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3. Encode input prompt + text_encoder_lora_scale = ( + self.cross_attention_kwargs.get("scale", None) if self.cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + self.do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=self.clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare depth mask + depth_mask = self.prepare_depth_map( + image, + depth_map, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + prompt_embeds.dtype, + device, + ) + + # 5. Preprocess image + image = self.image_processor.preprocess(image) + + # 6. Set timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, strength, device) + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + + # 7. Prepare latent variables + latents = self.prepare_latents( + image, latent_timestep, batch_size, num_images_per_prompt, prompt_embeds.dtype, device, generator + ) + + # 8. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 9. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + latent_model_input = torch.cat([latent_model_input, depth_mask], dim=1) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=self.cross_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + depth_mask = callback_outputs.pop("depth_mask", depth_mask) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + else: + image = latents + + image = self.image_processor.postprocess(image, output_type=output_type) + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return ImagePipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_image_variation.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_image_variation.py new file mode 100644 index 0000000000000000000000000000000000000000..d47e2f0593dd1e2f86bcfc4332eaa78a6c60563d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_image_variation.py @@ -0,0 +1,439 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Callable, List, Optional, Union + +import PIL.Image +import torch +from packaging import version +from transformers import CLIPImageProcessor, CLIPVisionModelWithProjection + +from ...configuration_utils import FrozenDict +from ...image_processor import VaeImageProcessor +from ...models import AutoencoderKL, UNet2DConditionModel +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import deprecate, is_torch_xla_available, logging +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from . import StableDiffusionPipelineOutput +from .safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +class StableDiffusionImageVariationPipeline(DiffusionPipeline, StableDiffusionMixin): + r""" + Pipeline to generate image variations from an input image using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + image_encoder ([`~transformers.CLIPVisionModelWithProjection`]): + Frozen CLIP image-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + # TODO: feature_extractor is required to encode images (if they are in PIL format), + # we should give a descriptive message if the pipeline doesn't have one. + _optional_components = ["safety_checker"] + model_cpu_offload_seq = "image_encoder->unet->vae" + _exclude_from_cpu_offload = ["safety_checker"] + + def __init__( + self, + vae: AutoencoderKL, + image_encoder: CLIPVisionModelWithProjection, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + is_unet_sample_size_less_64 = ( + unet is not None and hasattr(unet.config, "sample_size") and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely .If you're checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + self.register_modules( + vae=vae, + image_encoder=image_encoder, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + def _encode_image(self, image, device, num_images_per_prompt, do_classifier_free_guidance): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(images=image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + image_embeddings = self.image_encoder(image).image_embeds + image_embeddings = image_embeddings.unsqueeze(1) + + # duplicate image embeddings for each generation per prompt, using mps friendly method + bs_embed, seq_len, _ = image_embeddings.shape + image_embeddings = image_embeddings.repeat(1, num_images_per_prompt, 1) + image_embeddings = image_embeddings.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + negative_prompt_embeds = torch.zeros_like(image_embeddings) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + image_embeddings = torch.cat([negative_prompt_embeds, image_embeddings]) + + return image_embeddings + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs(self, image, height, width, callback_steps): + if ( + not isinstance(image, torch.Tensor) + and not isinstance(image, PIL.Image.Image) + and not isinstance(image, list) + ): + raise ValueError( + "`image` has to be of type `torch.Tensor` or `PIL.Image.Image` or `List[PIL.Image.Image]` but is" + f" {type(image)}" + ) + + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + @torch.no_grad() + def __call__( + self, + image: Union[PIL.Image.Image, List[PIL.Image.Image], torch.Tensor], + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + ): + r""" + The call function to the pipeline for generation. + + Args: + image (`PIL.Image.Image` or `List[PIL.Image.Image]` or `torch.Tensor`): + Image or images to guide image generation. If you provide a tensor, it needs to be compatible with + [`CLIPImageProcessor`](https://huggingface.co/lambdalabs/sd-image-variations-diffusers/blob/main/feature_extractor/preprocessor_config.json). + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. This parameter is modulated by `strength`. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + + Examples: + + ```py + from diffusers import StableDiffusionImageVariationPipeline + from PIL import Image + from io import BytesIO + import requests + + pipe = StableDiffusionImageVariationPipeline.from_pretrained( + "lambdalabs/sd-image-variations-diffusers", revision="v2.0" + ) + pipe = pipe.to("cuda") + + url = "https://lh3.googleusercontent.com/y-iFOHfLTwkuQSUegpwDdgKmOjRSTvPxat63dQLB25xkTs4lhIbRUFeNBWZzYf370g=s1200" + + response = requests.get(url) + image = Image.open(BytesIO(response.content)).convert("RGB") + + out = pipe(image, num_images_per_prompt=3, guidance_scale=15) + out["images"][0].save("result.jpg") + ``` + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs(image, height, width, callback_steps) + + # 2. Define call parameters + if isinstance(image, PIL.Image.Image): + batch_size = 1 + elif isinstance(image, list): + batch_size = len(image) + else: + batch_size = image.shape[0] + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input image + image_embeddings = self._encode_image(image, device, num_images_per_prompt, do_classifier_free_guidance) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + image_embeddings.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet(latent_model_input, t, encoder_hidden_states=image_embeddings).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + self.maybe_free_model_hooks() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, image_embeddings.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_img2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_img2img.py new file mode 100644 index 0000000000000000000000000000000000000000..95d3ab06f02a2f34a5d71f5796a79f578f276a73 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_img2img.py @@ -0,0 +1,1161 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from packaging import version +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...configuration_utils import FrozenDict +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, IPAdapterMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + PIL_INTERPOLATION, + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from . import StableDiffusionPipelineOutput +from .safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import requests + >>> import torch + >>> from PIL import Image + >>> from io import BytesIO + + >>> from diffusers import StableDiffusionImg2ImgPipeline + + >>> device = "cuda" + >>> model_id_or_path = "stable-diffusion-v1-5/stable-diffusion-v1-5" + >>> pipe = StableDiffusionImg2ImgPipeline.from_pretrained(model_id_or_path, torch_dtype=torch.float16) + >>> pipe = pipe.to(device) + + >>> url = "https://raw.githubusercontent.com/CompVis/stable-diffusion/main/assets/stable-samples/img2img/sketch-mountains-input.jpg" + + >>> response = requests.get(url) + >>> init_image = Image.open(BytesIO(response.content)).convert("RGB") + >>> init_image = init_image.resize((768, 512)) + + >>> prompt = "A fantasy landscape, trending on artstation" + + >>> images = pipe(prompt=prompt, image=init_image, strength=0.75, guidance_scale=7.5).images + >>> images[0].save("fantasy_landscape.png") + ``` +""" + + +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +def preprocess(image): + deprecation_message = "The preprocess method is deprecated and will be removed in diffusers 1.0.0. Please use VaeImageProcessor.preprocess(...) instead" + deprecate("preprocess", "1.0.0", deprecation_message, standard_warn=False) + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + w, h = image[0].size + w, h = (x - x % 8 for x in (w, h)) # resize to integer multiple of 8 + + image = [np.array(i.resize((w, h), resample=PIL_INTERPOLATION["lanczos"]))[None, :] for i in image] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = 2.0 * image - 1.0 + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + image = torch.cat(image, dim=0) + return image + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionImg2ImgPipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + IPAdapterMixin, + StableDiffusionLoraLoaderMixin, + FromSingleFileMixin, +): + r""" + Pipeline for text-guided image-to-image generation using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->image_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "image_encoder"] + _exclude_from_cpu_offload = ["safety_checker"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + image_encoder: CLIPVisionModelWithProjection = None, + requires_safety_checker: bool = True, + ): + super().__init__() + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "clip_sample", False) is True: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`." + " `clip_sample` should be set to False in the configuration file. Please make sure to update the" + " config accordingly as not setting `clip_sample` in the config might lead to incorrect results in" + " future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very" + " nice if you could open a Pull request for the `scheduler/scheduler_config.json` file" + ) + deprecate("clip_sample not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["clip_sample"] = False + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + is_unet_sample_size_less_64 = ( + unet is not None and hasattr(unet.config, "sample_size") and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely. If your checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + strength, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + def get_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + + t_start = max(num_inference_steps - init_timestep, 0) + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + def prepare_latents(self, image, timestep, batch_size, num_images_per_prompt, dtype, device, generator=None): + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + image = image.to(device=device, dtype=dtype) + + batch_size = batch_size * num_images_per_prompt + + if image.shape[1] == 4: + init_latents = image + + else: + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + elif isinstance(generator, list): + if image.shape[0] < batch_size and batch_size % image.shape[0] == 0: + image = torch.cat([image] * (batch_size // image.shape[0]), dim=0) + elif image.shape[0] < batch_size and batch_size % image.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {image.shape[0]} to effective batch_size {batch_size} " + ) + + init_latents = [ + retrieve_latents(self.vae.encode(image[i : i + 1]), generator=generator[i]) + for i in range(batch_size) + ] + init_latents = torch.cat(init_latents, dim=0) + else: + init_latents = retrieve_latents(self.vae.encode(image), generator=generator) + + init_latents = self.vae.config.scaling_factor * init_latents + + if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] == 0: + # expand init_latents for batch_size + deprecation_message = ( + f"You have passed {batch_size} text prompts (`prompt`), but only {init_latents.shape[0]} initial" + " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" + " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" + " your script to pass as many initial images as text prompts to suppress this warning." + ) + deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) + additional_image_per_prompt = batch_size // init_latents.shape[0] + init_latents = torch.cat([init_latents] * additional_image_per_prompt, dim=0) + elif batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {batch_size} text prompts." + ) + else: + init_latents = torch.cat([init_latents], dim=0) + + shape = init_latents.shape + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + + # get latents + init_latents = self.scheduler.add_noise(init_latents, noise, timestep) + latents = init_latents + + return latents + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + image: PipelineImageInput = None, + strength: float = 0.8, + num_inference_steps: Optional[int] = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + guidance_scale: Optional[float] = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: Optional[float] = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: int = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image`, numpy array or tensor representing an image batch to be used as the starting point. For both + numpy array and pytorch tensor, the expected value range is between `[0, 1]` If it's a tensor or a list + or tensors, the expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a numpy array or a + list of arrays, the expected shape should be `(B, H, W, C)` or `(H, W, C)` It can also accept image + latents as `image`, but if passing latents directly it is not encoded again. + strength (`float`, *optional*, defaults to 0.8): + Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a + starting point and more noise is added the higher the `strength`. The number of denoising steps depends + on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising + process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 + essentially ignores `image`. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. This parameter is modulated by `strength`. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + strength, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + ) + + self._guidance_scale = guidance_scale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3. Encode input prompt + text_encoder_lora_scale = ( + self.cross_attention_kwargs.get("scale", None) if self.cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + self.do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=self.clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 4. Preprocess image + image = self.image_processor.preprocess(image) + + # 5. set timesteps + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, strength, device) + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + + # 6. Prepare latent variables + latents = self.prepare_latents( + image, + latent_timestep, + batch_size, + num_images_per_prompt, + prompt_embeds.dtype, + device, + generator, + ) + + # 7. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7.1 Add image embeds for IP-Adapter + added_cond_kwargs = ( + {"image_embeds": image_embeds} + if ip_adapter_image is not None or ip_adapter_image_embeds is not None + else None + ) + + # 7.2 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + # 8. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=self.cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False, generator=generator)[ + 0 + ] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_inpaint.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_inpaint.py new file mode 100644 index 0000000000000000000000000000000000000000..148d7386a732dc5aea824d6dd4a2dda919551c2a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_inpaint.py @@ -0,0 +1,1359 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import PIL.Image +import torch +from packaging import version +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...configuration_utils import FrozenDict +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, IPAdapterMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AsymmetricAutoencoderKL, AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from . import StableDiffusionPipelineOutput +from .safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionInpaintPipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + IPAdapterMixin, + StableDiffusionLoraLoaderMixin, + FromSingleFileMixin, +): + r""" + Pipeline for text-guided image inpainting using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + + Args: + vae ([`AutoencoderKL`, `AsymmetricAutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->image_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "image_encoder"] + _exclude_from_cpu_offload = ["safety_checker"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds", "mask", "masked_image_latents"] + + def __init__( + self, + vae: Union[AutoencoderKL, AsymmetricAutoencoderKL], + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + image_encoder: CLIPVisionModelWithProjection = None, + requires_safety_checker: bool = True, + ): + super().__init__() + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "skip_prk_steps", True) is False: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration" + " `skip_prk_steps`. `skip_prk_steps` should be set to True in the configuration file. Please make" + " sure to update the config accordingly as not setting `skip_prk_steps` in the config might lead to" + " incorrect results in future versions. If you have downloaded this checkpoint from the Hugging Face" + " Hub, it would be very nice if you could open a Pull request for the" + " `scheduler/scheduler_config.json` file" + ) + deprecate("skip_prk_steps not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["skip_prk_steps"] = True + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + is_unet_sample_size_less_64 = ( + unet is not None and hasattr(unet.config, "sample_size") and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely .If you're checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + # Check shapes, assume num_channels_latents == 4, num_channels_mask == 1, num_channels_masked == 4 + if unet is not None and unet.config.in_channels != 9: + logger.info(f"You have loaded a UNet with {unet.config.in_channels} input channels which.") + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.mask_processor = VaeImageProcessor( + vae_scale_factor=self.vae_scale_factor, do_normalize=False, do_binarize=True, do_convert_grayscale=True + ) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + image, + mask_image, + height, + width, + strength, + callback_steps, + output_type, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + padding_mask_crop=None, + ): + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if height % self.vae_scale_factor != 0 or width % self.vae_scale_factor != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + if padding_mask_crop is not None: + if not isinstance(image, PIL.Image.Image): + raise ValueError( + f"The image should be a PIL image when inpainting mask crop, but is of type {type(image)}." + ) + if not isinstance(mask_image, PIL.Image.Image): + raise ValueError( + f"The mask image should be a PIL image when inpainting mask crop, but is of type" + f" {type(mask_image)}." + ) + if output_type != "pil": + raise ValueError(f"The output type should be PIL when inpainting mask crop, but is {output_type}.") + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + def prepare_latents( + self, + batch_size, + num_channels_latents, + height, + width, + dtype, + device, + generator, + latents=None, + image=None, + timestep=None, + is_strength_max=True, + return_noise=False, + return_image_latents=False, + ): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if (image is None or timestep is None) and not is_strength_max: + raise ValueError( + "Since strength < 1. initial latents are to be initialised as a combination of Image + Noise." + "However, either the image or the noise timestep has not been provided." + ) + + if return_image_latents or (latents is None and not is_strength_max): + image = image.to(device=device, dtype=dtype) + + if image.shape[1] == 4: + image_latents = image + else: + image_latents = self._encode_vae_image(image=image, generator=generator) + image_latents = image_latents.repeat(batch_size // image_latents.shape[0], 1, 1, 1) + + if latents is None: + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + # if strength is 1. then initialise the latents to noise, else initial to image + noise + latents = noise if is_strength_max else self.scheduler.add_noise(image_latents, noise, timestep) + # if pure noise then scale the initial latents by the Scheduler's init sigma + latents = latents * self.scheduler.init_noise_sigma if is_strength_max else latents + else: + noise = latents.to(device) + latents = noise * self.scheduler.init_noise_sigma + + outputs = (latents,) + + if return_noise: + outputs += (noise,) + + if return_image_latents: + outputs += (image_latents,) + + return outputs + + def _encode_vae_image(self, image: torch.Tensor, generator: torch.Generator): + if isinstance(generator, list): + image_latents = [ + retrieve_latents(self.vae.encode(image[i : i + 1]), generator=generator[i]) + for i in range(image.shape[0]) + ] + image_latents = torch.cat(image_latents, dim=0) + else: + image_latents = retrieve_latents(self.vae.encode(image), generator=generator) + + image_latents = self.vae.config.scaling_factor * image_latents + + return image_latents + + def prepare_mask_latents( + self, mask, masked_image, batch_size, height, width, dtype, device, generator, do_classifier_free_guidance + ): + # resize the mask to latents shape as we concatenate the mask to the latents + # we do that before converting to dtype to avoid breaking in case we're using cpu_offload + # and half precision + mask = torch.nn.functional.interpolate( + mask, size=(height // self.vae_scale_factor, width // self.vae_scale_factor) + ) + mask = mask.to(device=device, dtype=dtype) + + masked_image = masked_image.to(device=device, dtype=dtype) + + if masked_image.shape[1] == 4: + masked_image_latents = masked_image + else: + masked_image_latents = self._encode_vae_image(masked_image, generator=generator) + + # duplicate mask and masked_image_latents for each generation per prompt, using mps friendly method + if mask.shape[0] < batch_size: + if not batch_size % mask.shape[0] == 0: + raise ValueError( + "The passed mask and the required batch size don't match. Masks are supposed to be duplicated to" + f" a total batch size of {batch_size}, but {mask.shape[0]} masks were passed. Make sure the number" + " of masks that you pass is divisible by the total requested batch size." + ) + mask = mask.repeat(batch_size // mask.shape[0], 1, 1, 1) + if masked_image_latents.shape[0] < batch_size: + if not batch_size % masked_image_latents.shape[0] == 0: + raise ValueError( + "The passed images and the required batch size don't match. Images are supposed to be duplicated" + f" to a total batch size of {batch_size}, but {masked_image_latents.shape[0]} images were passed." + " Make sure the number of images that you pass is divisible by the total requested batch size." + ) + masked_image_latents = masked_image_latents.repeat(batch_size // masked_image_latents.shape[0], 1, 1, 1) + + mask = torch.cat([mask] * 2) if do_classifier_free_guidance else mask + masked_image_latents = ( + torch.cat([masked_image_latents] * 2) if do_classifier_free_guidance else masked_image_latents + ) + + # aligning device to prevent device errors when concating it with the latent model input + masked_image_latents = masked_image_latents.to(device=device, dtype=dtype) + return mask, masked_image_latents + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.StableDiffusionImg2ImgPipeline.get_timesteps + def get_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + + t_start = max(num_inference_steps - init_timestep, 0) + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]] = None, + image: PipelineImageInput = None, + mask_image: PipelineImageInput = None, + masked_image_latents: torch.Tensor = None, + height: Optional[int] = None, + width: Optional[int] = None, + padding_mask_crop: Optional[int] = None, + strength: float = 1.0, + num_inference_steps: int = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: int = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image`, numpy array or tensor representing an image batch to be inpainted (which parts of the image to + be masked out with `mask_image` and repainted according to `prompt`). For both numpy array and pytorch + tensor, the expected value range is between `[0, 1]` If it's a tensor or a list or tensors, the + expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a numpy array or a list of arrays, the + expected shape should be `(B, H, W, C)` or `(H, W, C)` It can also accept image latents as `image`, but + if passing latents directly it is not encoded again. + mask_image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image`, numpy array or tensor representing an image batch to mask `image`. White pixels in the mask + are repainted while black pixels are preserved. If `mask_image` is a PIL image, it is converted to a + single channel (luminance) before use. If it's a numpy array or pytorch tensor, it should contain one + color channel (L) instead of 3, so the expected shape for pytorch tensor would be `(B, 1, H, W)`, `(B, + H, W)`, `(1, H, W)`, `(H, W)`. And for numpy array would be for `(B, H, W, 1)`, `(B, H, W)`, `(H, W, + 1)`, or `(H, W)`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + padding_mask_crop (`int`, *optional*, defaults to `None`): + The size of margin in the crop to be applied to the image and masking. If `None`, no crop is applied to + image and mask_image. If `padding_mask_crop` is not `None`, it will first find a rectangular region + with the same aspect ration of the image and contains all masked area, and then expand that area based + on `padding_mask_crop`. The image and mask_image will then be cropped based on the expanded area before + resizing to the original image size for inpainting. This is useful when the masked area is small while + the image is large and contain information irrelevant for inpainting, such as background. + strength (`float`, *optional*, defaults to 1.0): + Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a + starting point and more noise is added the higher the `strength`. The number of denoising steps depends + on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising + process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 + essentially ignores `image`. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. This parameter is modulated by `strength`. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + Examples: + + ```py + >>> import PIL + >>> import requests + >>> import torch + >>> from io import BytesIO + + >>> from diffusers import StableDiffusionInpaintPipeline + + + >>> def download_image(url): + ... response = requests.get(url) + ... return PIL.Image.open(BytesIO(response.content)).convert("RGB") + + + >>> img_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo.png" + >>> mask_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo_mask.png" + + >>> init_image = download_image(img_url).resize((512, 512)) + >>> mask_image = download_image(mask_url).resize((512, 512)) + + >>> pipe = StableDiffusionInpaintPipeline.from_pretrained( + ... "stable-diffusion-v1-5/stable-diffusion-inpainting", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> prompt = "Face of a yellow cat, high resolution, sitting on a park bench" + >>> image = pipe(prompt=prompt, image=init_image, mask_image=mask_image).images[0] + ``` + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs + self.check_inputs( + prompt, + image, + mask_image, + height, + width, + strength, + callback_steps, + output_type, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + padding_mask_crop, + ) + + self._guidance_scale = guidance_scale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + self.do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=self.clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 4. set timesteps + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + timesteps, num_inference_steps = self.get_timesteps( + num_inference_steps=num_inference_steps, strength=strength, device=device + ) + # check that number of inference steps is not < 1 - as this doesn't make sense + if num_inference_steps < 1: + raise ValueError( + f"After adjusting the num_inference_steps by strength parameter: {strength}, the number of pipeline" + f"steps is {num_inference_steps} which is < 1 and not appropriate for this pipeline." + ) + # at which timestep to set the initial noise (n.b. 50% if strength is 0.5) + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + # create a boolean to check if the strength is set to 1. if so then initialise the latents with pure noise + is_strength_max = strength == 1.0 + + # 5. Preprocess mask and image + + if padding_mask_crop is not None: + crops_coords = self.mask_processor.get_crop_region(mask_image, width, height, pad=padding_mask_crop) + resize_mode = "fill" + else: + crops_coords = None + resize_mode = "default" + + original_image = image + init_image = self.image_processor.preprocess( + image, height=height, width=width, crops_coords=crops_coords, resize_mode=resize_mode + ) + init_image = init_image.to(dtype=torch.float32) + + # 6. Prepare latent variables + num_channels_latents = self.vae.config.latent_channels + num_channels_unet = self.unet.config.in_channels + return_image_latents = num_channels_unet == 4 + + latents_outputs = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + image=init_image, + timestep=latent_timestep, + is_strength_max=is_strength_max, + return_noise=True, + return_image_latents=return_image_latents, + ) + + if return_image_latents: + latents, noise, image_latents = latents_outputs + else: + latents, noise = latents_outputs + + # 7. Prepare mask latent variables + mask_condition = self.mask_processor.preprocess( + mask_image, height=height, width=width, resize_mode=resize_mode, crops_coords=crops_coords + ) + + if masked_image_latents is None: + masked_image = init_image * (mask_condition < 0.5) + else: + masked_image = masked_image_latents + + mask, masked_image_latents = self.prepare_mask_latents( + mask_condition, + masked_image, + batch_size * num_images_per_prompt, + height, + width, + prompt_embeds.dtype, + device, + generator, + self.do_classifier_free_guidance, + ) + + # 8. Check that sizes of mask, masked image and latents match + if num_channels_unet == 9: + # default case for stable-diffusion-v1-5/stable-diffusion-inpainting + num_channels_mask = mask.shape[1] + num_channels_masked_image = masked_image_latents.shape[1] + if num_channels_latents + num_channels_mask + num_channels_masked_image != self.unet.config.in_channels: + raise ValueError( + f"Incorrect configuration settings! The config of `pipeline.unet`: {self.unet.config} expects" + f" {self.unet.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_mask`: {num_channels_mask} + `num_channels_masked_image`: {num_channels_masked_image}" + f" = {num_channels_latents + num_channels_masked_image + num_channels_mask}. Please verify the config of" + " `pipeline.unet` or your `mask_image` or `image` input." + ) + elif num_channels_unet != 4: + raise ValueError( + f"The unet {self.unet.__class__} should have either 4 or 9 input channels, not {self.unet.config.in_channels}." + ) + + # 9. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 9.1 Add image embeds for IP-Adapter + added_cond_kwargs = ( + {"image_embeds": image_embeds} + if ip_adapter_image is not None or ip_adapter_image_embeds is not None + else None + ) + + # 9.2 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + # 10. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + + # concat latents, mask, masked_image_latents in the channel dimension + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + if num_channels_unet == 9: + latent_model_input = torch.cat([latent_model_input, mask, masked_image_latents], dim=1) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=self.cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + if num_channels_unet == 4: + init_latents_proper = image_latents + if self.do_classifier_free_guidance: + init_mask, _ = mask.chunk(2) + else: + init_mask = mask + + if i < len(timesteps) - 1: + noise_timestep = timesteps[i + 1] + init_latents_proper = self.scheduler.add_noise( + init_latents_proper, noise, torch.tensor([noise_timestep]) + ) + + latents = (1 - init_mask) * init_latents_proper + init_mask * latents + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + mask = callback_outputs.pop("mask", mask) + masked_image_latents = callback_outputs.pop("masked_image_latents", masked_image_latents) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + condition_kwargs = {} + if isinstance(self.vae, AsymmetricAutoencoderKL): + init_image = init_image.to(device=device, dtype=masked_image_latents.dtype) + init_image_condition = init_image.clone() + init_image = self._encode_vae_image(init_image, generator=generator) + mask_condition = mask_condition.to(device=device, dtype=masked_image_latents.dtype) + condition_kwargs = {"image": init_image_condition, "mask": mask_condition} + image = self.vae.decode( + latents / self.vae.config.scaling_factor, return_dict=False, generator=generator, **condition_kwargs + )[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + if padding_mask_crop is not None: + image = [self.image_processor.apply_overlay(mask_image, original_image, i, crops_coords) for i in image] + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_instruct_pix2pix.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_instruct_pix2pix.py new file mode 100644 index 0000000000000000000000000000000000000000..843d25d67c1040d5f3a4906daa400e1afae644c6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_instruct_pix2pix.py @@ -0,0 +1,917 @@ +# Copyright 2025 The InstructPix2Pix Authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, IPAdapterMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import PIL_INTERPOLATION, deprecate, is_torch_xla_available, logging +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from . import StableDiffusionPipelineOutput +from .safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess +def preprocess(image): + deprecation_message = "The preprocess method is deprecated and will be removed in diffusers 1.0.0. Please use VaeImageProcessor.preprocess(...) instead" + deprecate("preprocess", "1.0.0", deprecation_message, standard_warn=False) + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + w, h = image[0].size + w, h = (x - x % 8 for x in (w, h)) # resize to integer multiple of 8 + + image = [np.array(i.resize((w, h), resample=PIL_INTERPOLATION["lanczos"]))[None, :] for i in image] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = 2.0 * image - 1.0 + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + image = torch.cat(image, dim=0) + return image + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class StableDiffusionInstructPix2PixPipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, + IPAdapterMixin, + FromSingleFileMixin, +): + r""" + Pipeline for pixel-level image editing by following text instructions (based on Stable Diffusion). + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "image_encoder"] + _exclude_from_cpu_offload = ["safety_checker"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "image_latents"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + image_encoder: Optional[CLIPVisionModelWithProjection] = None, + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]] = None, + image: PipelineImageInput = None, + num_inference_steps: int = 100, + guidance_scale: float = 7.5, + image_guidance_scale: float = 1.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + **kwargs, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + image (`torch.Tensor` `np.ndarray`, `PIL.Image.Image`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image` or tensor representing an image batch to be repainted according to `prompt`. Can also accept + image latents as `image`, but if passing latents directly it is not encoded again. + num_inference_steps (`int`, *optional*, defaults to 100): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + image_guidance_scale (`float`, *optional*, defaults to 1.5): + Push the generated image towards the initial `image`. Image guidance scale is enabled by setting + `image_guidance_scale > 1`. Higher image guidance scale encourages generated images that are closely + linked to the source `image`, usually at the expense of lower image quality. This pipeline requires a + value of at least `1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): + Optional image input to work with IP Adapters. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + + Examples: + + ```py + >>> import PIL + >>> import requests + >>> import torch + >>> from io import BytesIO + + >>> from diffusers import StableDiffusionInstructPix2PixPipeline + + + >>> def download_image(url): + ... response = requests.get(url) + ... return PIL.Image.open(BytesIO(response.content)).convert("RGB") + + + >>> img_url = "https://huggingface.co/datasets/diffusers/diffusers-images-docs/resolve/main/mountain.png" + + >>> image = download_image(img_url).resize((512, 512)) + + >>> pipe = StableDiffusionInstructPix2PixPipeline.from_pretrained( + ... "timbrooks/instruct-pix2pix", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> prompt = "make the mountains snowy" + >>> image = pipe(prompt=prompt, image=image).images[0] + ``` + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 0. Check inputs + self.check_inputs( + prompt, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + ) + self._guidance_scale = guidance_scale + self._image_guidance_scale = image_guidance_scale + + device = self._execution_device + + if image is None: + raise ValueError("`image` input cannot be undefined.") + + # 1. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 2. Encode input prompt + prompt_embeds = self._encode_prompt( + prompt, + device, + num_images_per_prompt, + self.do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + # 3. Preprocess image + image = self.image_processor.preprocess(image) + + # 4. set timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare Image latents + image_latents = self.prepare_image_latents( + image, + batch_size, + num_images_per_prompt, + prompt_embeds.dtype, + device, + self.do_classifier_free_guidance, + ) + + height, width = image_latents.shape[-2:] + height = height * self.vae_scale_factor + width = width * self.vae_scale_factor + + # 6. Prepare latent variables + num_channels_latents = self.vae.config.latent_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 7. Check that shapes of latents and image match the UNet channels + num_channels_image = image_latents.shape[1] + if num_channels_latents + num_channels_image != self.unet.config.in_channels: + raise ValueError( + f"Incorrect configuration settings! The config of `pipeline.unet`: {self.unet.config} expects" + f" {self.unet.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_image`: {num_channels_image} " + f" = {num_channels_latents + num_channels_image}. Please verify the config of" + " `pipeline.unet` or your `image` input." + ) + + # 8. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 8.1 Add image embeds for IP-Adapter + added_cond_kwargs = {"image_embeds": image_embeds} if ip_adapter_image is not None else None + + # 9. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # Expand the latents if we are doing classifier free guidance. + # The latents are expanded 3 times because for pix2pix the guidance\ + # is applied for both the text and the input image. + latent_model_input = torch.cat([latents] * 3) if self.do_classifier_free_guidance else latents + + # concat latents, image_latents in the channel dimension + scaled_latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + scaled_latent_model_input = torch.cat([scaled_latent_model_input, image_latents], dim=1) + + # predict the noise residual + noise_pred = self.unet( + scaled_latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + added_cond_kwargs=added_cond_kwargs, + cross_attention_kwargs=cross_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_text, noise_pred_image, noise_pred_uncond = noise_pred.chunk(3) + noise_pred = ( + noise_pred_uncond + + self.guidance_scale * (noise_pred_text - noise_pred_image) + + self.image_guidance_scale * (noise_pred_image - noise_pred_uncond) + ) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + image_latents = callback_outputs.pop("image_latents", image_latents) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) + + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_ prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + """ + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + else: + prompt_embeds_dtype = self.unet.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + # pix2pix has two negative embeddings, and unlike in other pipelines latents are ordered [prompt_embeds, negative_prompt_embeds, negative_prompt_embeds] + prompt_embeds = torch.cat([prompt_embeds, negative_prompt_embeds, negative_prompt_embeds]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + image_embeds = [] + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + single_image_embeds = torch.stack([single_image_embeds] * num_images_per_prompt, dim=0) + single_negative_image_embeds = torch.stack( + [single_negative_image_embeds] * num_images_per_prompt, dim=0 + ) + + if do_classifier_free_guidance: + single_image_embeds = torch.cat( + [single_image_embeds, single_negative_image_embeds, single_negative_image_embeds] + ) + single_image_embeds = single_image_embeds.to(device) + + image_embeds.append(single_image_embeds) + else: + repeat_dims = [1] + image_embeds = [] + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + ( + single_image_embeds, + single_negative_image_embeds, + single_negative_image_embeds, + ) = single_image_embeds.chunk(3) + single_image_embeds = single_image_embeds.repeat( + num_images_per_prompt, *(repeat_dims * len(single_image_embeds.shape[1:])) + ) + single_negative_image_embeds = single_negative_image_embeds.repeat( + num_images_per_prompt, *(repeat_dims * len(single_negative_image_embeds.shape[1:])) + ) + single_image_embeds = torch.cat( + [single_image_embeds, single_negative_image_embeds, single_negative_image_embeds] + ) + else: + single_image_embeds = single_image_embeds.repeat( + num_images_per_prompt, *(repeat_dims * len(single_image_embeds.shape[1:])) + ) + image_embeds.append(single_image_embeds) + + return image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + def check_inputs( + self, + prompt, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def prepare_image_latents( + self, image, batch_size, num_images_per_prompt, dtype, device, do_classifier_free_guidance, generator=None + ): + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + image = image.to(device=device, dtype=dtype) + + batch_size = batch_size * num_images_per_prompt + + if image.shape[1] == 4: + image_latents = image + else: + image_latents = retrieve_latents(self.vae.encode(image), sample_mode="argmax") + + if batch_size > image_latents.shape[0] and batch_size % image_latents.shape[0] == 0: + # expand image_latents for batch_size + deprecation_message = ( + f"You have passed {batch_size} text prompts (`prompt`), but only {image_latents.shape[0]} initial" + " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" + " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" + " your script to pass as many initial images as text prompts to suppress this warning." + ) + deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) + additional_image_per_prompt = batch_size // image_latents.shape[0] + image_latents = torch.cat([image_latents] * additional_image_per_prompt, dim=0) + elif batch_size > image_latents.shape[0] and batch_size % image_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {image_latents.shape[0]} to {batch_size} text prompts." + ) + else: + image_latents = torch.cat([image_latents], dim=0) + + if do_classifier_free_guidance: + uncond_image_latents = torch.zeros_like(image_latents) + image_latents = torch.cat([image_latents, image_latents, uncond_image_latents], dim=0) + + return image_latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def image_guidance_scale(self): + return self._image_guidance_scale + + @property + def num_timesteps(self): + return self._num_timesteps + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self.guidance_scale > 1.0 and self.image_guidance_scale >= 1.0 diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_latent_upscale.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_latent_upscale.py new file mode 100644 index 0000000000000000000000000000000000000000..66d5ffa6b8498ac9f9f9392b1c92f84fd52963a6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_latent_upscale.py @@ -0,0 +1,665 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import warnings +from typing import Callable, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +import torch.nn.functional as F +from transformers import CLIPTextModel, CLIPTokenizer + +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...schedulers import EulerDiscreteScheduler +from ...utils import deprecate, is_torch_xla_available, logging +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, ImagePipelineOutput, StableDiffusionMixin + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_upscale.preprocess +def preprocess(image): + warnings.warn( + "The preprocess method is deprecated and will be removed in a future version. Please" + " use VaeImageProcessor.preprocess instead", + FutureWarning, + ) + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + w, h = image[0].size + w, h = (x - x % 64 for x in (w, h)) # resize to integer multiple of 64 + + image = [np.array(i.resize((w, h)))[None, :] for i in image] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = 2.0 * image - 1.0 + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + image = torch.cat(image, dim=0) + return image + + +class StableDiffusionLatentUpscalePipeline(DiffusionPipeline, StableDiffusionMixin, FromSingleFileMixin): + r""" + Pipeline for upscaling Stable Diffusion output image resolution by a factor of 2. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A [`EulerDiscreteScheduler`] to be used in combination with `unet` to denoise the encoded image latents. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: EulerDiscreteScheduler, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor, resample="bicubic") + + def _encode_prompt( + self, + prompt, + device, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + device=device, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + **kwargs, + ) + + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + pooled_prompt_embeds = torch.cat([negative_pooled_prompt_embeds, pooled_prompt_embeds]) + + return prompt_embeds, pooled_prompt_embeds + + def encode_prompt( + self, + prompt, + device, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `list(int)`): + prompt to be encoded + device: (`torch.device`): + torch device + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + """ + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None or pooled_prompt_embeds is None: + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_length=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + text_encoder_out = self.text_encoder( + text_input_ids.to(device), + output_hidden_states=True, + ) + prompt_embeds = text_encoder_out.hidden_states[-1] + pooled_prompt_embeds = text_encoder_out.pooler_output + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance: + if negative_prompt_embeds is None or negative_pooled_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + max_length = text_input_ids.shape[-1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_length=True, + return_tensors="pt", + ) + + uncond_encoder_out = self.text_encoder( + uncond_input.input_ids.to(device), + output_hidden_states=True, + ) + + negative_prompt_embeds = uncond_encoder_out.hidden_states[-1] + negative_pooled_prompt_embeds = uncond_encoder_out.pooler_output + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + def check_inputs( + self, + prompt, + image, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + pooled_prompt_embeds=None, + negative_pooled_prompt_embeds=None, + ): + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and not isinstance(prompt, str) and not isinstance(prompt, list): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." + ) + + if ( + not isinstance(image, torch.Tensor) + and not isinstance(image, np.ndarray) + and not isinstance(image, PIL.Image.Image) + and not isinstance(image, list) + ): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or `list` but is {type(image)}" + ) + + # verify batch size of prompt and image are same if image is a list or tensor + if isinstance(image, (list, torch.Tensor)): + if prompt is not None: + if isinstance(prompt, str): + batch_size = 1 + else: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if isinstance(image, list): + image_batch_size = len(image) + else: + image_batch_size = image.shape[0] if image.ndim == 4 else 1 + if batch_size != image_batch_size: + raise ValueError( + f"`prompt` has batch size {batch_size} and `image` has batch size {image_batch_size}." + " Please make sure that passed `prompt` matches the batch size of `image`." + ) + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_upscale.StableDiffusionUpscalePipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = (batch_size, num_channels_latents, height, width) + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]] = None, + image: PipelineImageInput = None, + num_inference_steps: int = 75, + guidance_scale: float = 9.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide image upscaling. + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image` or tensor representing an image batch to be upscaled. If it's a tensor, it can be either a + latent output from a Stable Diffusion model or an image tensor in the range `[-1, 1]`. It is considered + a `latent` if `image.shape[1]` is `4`; otherwise, it is considered to be an image representation and + encoded using this pipeline's `vae` encoder. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + + Examples: + ```py + >>> from diffusers import StableDiffusionLatentUpscalePipeline, StableDiffusionPipeline + >>> import torch + + + >>> pipeline = StableDiffusionPipeline.from_pretrained( + ... "CompVis/stable-diffusion-v1-4", torch_dtype=torch.float16 + ... ) + >>> pipeline.to("cuda") + + >>> model_id = "stabilityai/sd-x2-latent-upscaler" + >>> upscaler = StableDiffusionLatentUpscalePipeline.from_pretrained(model_id, torch_dtype=torch.float16) + >>> upscaler.to("cuda") + + >>> prompt = "a photo of an astronaut high resolution, unreal engine, ultra realistic" + >>> generator = torch.manual_seed(33) + + >>> low_res_latents = pipeline(prompt, generator=generator, output_type="latent").images + + >>> with torch.no_grad(): + ... image = pipeline.decode_latents(low_res_latents) + >>> image = pipeline.numpy_to_pil(image)[0] + + >>> image.save("../images/a1.png") + + >>> upscaled_image = upscaler( + ... prompt=prompt, + ... image=low_res_latents, + ... num_inference_steps=20, + ... guidance_scale=0, + ... generator=generator, + ... ).images[0] + + >>> upscaled_image.save("../images/a2.png") + ``` + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images. + """ + + # 1. Check inputs + self.check_inputs( + prompt, + image, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) + + # 2. Define call parameters + if prompt is not None: + batch_size = 1 if isinstance(prompt, str) else len(prompt) + else: + batch_size = prompt_embeds.shape[0] + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + if guidance_scale == 0: + prompt = [""] * batch_size + + # 3. Encode input prompt + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt, + device, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) + + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + pooled_prompt_embeds = torch.cat([negative_pooled_prompt_embeds, pooled_prompt_embeds]) + + # 4. Preprocess image + image = self.image_processor.preprocess(image) + image = image.to(dtype=prompt_embeds.dtype, device=device) + if image.shape[1] == 3: + # encode image if not in latent-space yet + image = retrieve_latents(self.vae.encode(image), generator=generator) * self.vae.config.scaling_factor + + # 5. set timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + batch_multiplier = 2 if do_classifier_free_guidance else 1 + image = image[None, :] if image.ndim == 3 else image + image = torch.cat([image] * batch_multiplier) + + # 5. Add noise to image (set to be 0): + # (see below notes from the author): + # "the This step theoretically can make the model work better on out-of-distribution inputs, but mostly just seems to make it match the input less, so it's turned off by default." + noise_level = torch.tensor([0.0], dtype=torch.float32, device=device) + noise_level = torch.cat([noise_level] * image.shape[0]) + inv_noise_level = (noise_level**2 + 1) ** (-0.5) + + image_cond = F.interpolate(image, scale_factor=2, mode="nearest") * inv_noise_level[:, None, None, None] + image_cond = image_cond.to(prompt_embeds.dtype) + + noise_level_embed = torch.cat( + [ + torch.ones(pooled_prompt_embeds.shape[0], 64, dtype=pooled_prompt_embeds.dtype, device=device), + torch.zeros(pooled_prompt_embeds.shape[0], 64, dtype=pooled_prompt_embeds.dtype, device=device), + ], + dim=1, + ) + + timestep_condition = torch.cat([noise_level_embed, pooled_prompt_embeds], dim=1) + + # 6. Prepare latent variables + height, width = image.shape[2:] + num_channels_latents = self.vae.config.latent_channels + latents = self.prepare_latents( + batch_size, + num_channels_latents, + height * 2, # 2x upscale + width * 2, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 7. Check that sizes of image and latents match + num_channels_image = image.shape[1] + if num_channels_latents + num_channels_image != self.unet.config.in_channels: + raise ValueError( + f"Incorrect configuration settings! The config of `pipeline.unet`: {self.unet.config} expects" + f" {self.unet.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_image`: {num_channels_image} " + f" = {num_channels_latents + num_channels_image}. Please verify the config of" + " `pipeline.unet` or your `image` input." + ) + + # 9. Denoising loop + num_warmup_steps = 0 + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + sigma = self.scheduler.sigmas[i] + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + scaled_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + scaled_model_input = torch.cat([scaled_model_input, image_cond], dim=1) + # preconditioning parameter based on Karras et al. (2022) (table 1) + timestep = torch.log(sigma) * 0.25 + + noise_pred = self.unet( + scaled_model_input, + timestep, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_condition, + ).sample + + # in original repo, the output contains a variance channel that's not used + noise_pred = noise_pred[:, :-1] + + # apply preconditioning, based on table 1 in Karras et al. (2022) + inv_sigma = 1 / (sigma**2 + 1) + noise_pred = inv_sigma * latent_model_input + self.scheduler.scale_model_input(sigma, t) * noise_pred + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + else: + image = latents + + image = self.image_processor.postprocess(image, output_type=output_type) + + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return ImagePipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_upscale.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_upscale.py new file mode 100644 index 0000000000000000000000000000000000000000..02f7526b71028b2a1eb7aa69e5cf62c380850c94 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_upscale.py @@ -0,0 +1,826 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +import warnings +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer + +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.attention_processor import ( + AttnProcessor2_0, + XFormersAttnProcessor, +) +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import DDPMScheduler, KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from . import StableDiffusionPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +def preprocess(image): + warnings.warn( + "The preprocess method is deprecated and will be removed in a future version. Please" + " use VaeImageProcessor.preprocess instead", + FutureWarning, + ) + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + w, h = image[0].size + w, h = (x - x % 64 for x in (w, h)) # resize to integer multiple of 64 + + image = [np.array(i.resize((w, h)))[None, :] for i in image] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = 2.0 * image - 1.0 + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + image = torch.cat(image, dim=0) + return image + + +class StableDiffusionUpscalePipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, + FromSingleFileMixin, +): + r""" + Pipeline for text-guided image super-resolution using Stable Diffusion 2. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + low_res_scheduler ([`SchedulerMixin`]): + A scheduler used to add initial noise to the low resolution conditioning image. It must be an instance of + [`DDPMScheduler`]. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["watermarker", "safety_checker", "feature_extractor"] + _exclude_from_cpu_offload = ["safety_checker"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + low_res_scheduler: DDPMScheduler, + scheduler: KarrasDiffusionSchedulers, + safety_checker: Optional[Any] = None, + feature_extractor: Optional[CLIPImageProcessor] = None, + watermarker: Optional[Any] = None, + max_noise_level: int = 350, + ): + super().__init__() + + if hasattr( + vae, "config" + ): # check if vae has a config attribute `scaling_factor` and if it is set to 0.08333, else set it to 0.08333 and deprecate + is_vae_scaling_factor_set_to_0_08333 = ( + hasattr(vae.config, "scaling_factor") and vae.config.scaling_factor == 0.08333 + ) + if not is_vae_scaling_factor_set_to_0_08333: + deprecation_message = ( + "The configuration file of the vae does not contain `scaling_factor` or it is set to" + f" {vae.config.scaling_factor}, which seems highly unlikely. If your checkpoint is a fine-tuned" + " version of `stabilityai/stable-diffusion-x4-upscaler` you should change 'scaling_factor' to" + " 0.08333 Please make sure to update the config accordingly, as not doing so might lead to" + " incorrect results in future versions. If you have downloaded this checkpoint from the Hugging" + " Face Hub, it would be very nice if you could open a Pull Request for the `vae/config.json` file" + ) + deprecate("wrong scaling_factor", "1.0.0", deprecation_message, standard_warn=False) + vae.register_to_config(scaling_factor=0.08333) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + low_res_scheduler=low_res_scheduler, + scheduler=scheduler, + safety_checker=safety_checker, + watermarker=watermarker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor, resample="bicubic") + self.register_to_config(max_noise_level=max_noise_level) + + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is not None: + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, nsfw_detected, watermark_detected = self.safety_checker( + images=image, + clip_input=safety_checker_input.pixel_values.to(dtype=dtype), + ) + else: + nsfw_detected = None + watermark_detected = None + + if hasattr(self, "unet_offload_hook") and self.unet_offload_hook is not None: + self.unet_offload_hook.offload() + + return image, nsfw_detected, watermark_detected + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + def check_inputs( + self, + prompt, + image, + noise_level, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ): + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if ( + not isinstance(image, torch.Tensor) + and not isinstance(image, PIL.Image.Image) + and not isinstance(image, np.ndarray) + and not isinstance(image, list) + ): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `np.ndarray`, `PIL.Image.Image` or `list` but is {type(image)}" + ) + + # verify batch size of prompt and image are same if image is a list or tensor or numpy array + if isinstance(image, (list, np.ndarray, torch.Tensor)): + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if isinstance(image, list): + image_batch_size = len(image) + else: + image_batch_size = image.shape[0] + if batch_size != image_batch_size: + raise ValueError( + f"`prompt` has batch size {batch_size} and `image` has batch size {image_batch_size}." + " Please make sure that passed `prompt` matches the batch size of `image`." + ) + + # check noise level + if noise_level > self.config.max_noise_level: + raise ValueError(f"`noise_level` has to be <= {self.config.max_noise_level} but is {noise_level}") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = (batch_size, num_channels_latents, height, width) + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def upcast_vae(self): + dtype = self.vae.dtype + self.vae.to(dtype=torch.float32) + use_torch_2_0_or_xformers = isinstance( + self.vae.decoder.mid_block.attentions[0].processor, + ( + AttnProcessor2_0, + XFormersAttnProcessor, + ), + ) + # if xformers or torch_2_0 is used attention block does not need + # to be in float32 which can save lots of memory + if use_torch_2_0_or_xformers: + self.vae.post_quant_conv.to(dtype) + self.vae.decoder.conv_in.to(dtype) + self.vae.decoder.mid_block.to(dtype) + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]] = None, + image: PipelineImageInput = None, + num_inference_steps: int = 75, + guidance_scale: float = 9.0, + noise_level: int = 20, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: int = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image` or tensor representing an image batch to be upscaled. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Examples: + ```py + >>> import requests + >>> from PIL import Image + >>> from io import BytesIO + >>> from diffusers import StableDiffusionUpscalePipeline + >>> import torch + + >>> # load model and scheduler + >>> model_id = "stabilityai/stable-diffusion-x4-upscaler" + >>> pipeline = StableDiffusionUpscalePipeline.from_pretrained( + ... model_id, variant="fp16", torch_dtype=torch.float16 + ... ) + >>> pipeline = pipeline.to("cuda") + + >>> # let's download an image + >>> url = "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main/sd2-upscale/low_res_cat.png" + >>> response = requests.get(url) + >>> low_res_img = Image.open(BytesIO(response.content)).convert("RGB") + >>> low_res_img = low_res_img.resize((128, 128)) + >>> prompt = "a white cat" + + >>> upscaled_image = pipeline(prompt=prompt, image=low_res_img).images[0] + >>> upscaled_image.save("upsampled_cat.png") + ``` + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + + # 1. Check inputs + self.check_inputs( + prompt, + image, + noise_level, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ) + + if image is None: + raise ValueError("`image` input cannot be undefined.") + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Preprocess image + image = self.image_processor.preprocess(image) + image = image.to(dtype=prompt_embeds.dtype, device=device) + + # 5. set timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Add noise to image + noise_level = torch.tensor([noise_level], dtype=torch.long, device=device) + noise = randn_tensor(image.shape, generator=generator, device=device, dtype=prompt_embeds.dtype) + image = self.low_res_scheduler.add_noise(image, noise, noise_level) + + batch_multiplier = 2 if do_classifier_free_guidance else 1 + image = torch.cat([image] * batch_multiplier * num_images_per_prompt) + noise_level = torch.cat([noise_level] * image.shape[0]) + + # 6. Prepare latent variables + height, width = image.shape[2:] + num_channels_latents = self.vae.config.latent_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 7. Check that sizes of image and latents match + num_channels_image = image.shape[1] + if num_channels_latents + num_channels_image != self.unet.config.in_channels: + raise ValueError( + f"Incorrect configuration settings! The config of `pipeline.unet`: {self.unet.config} expects" + f" {self.unet.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_image`: {num_channels_image} " + f" = {num_channels_latents + num_channels_image}. Please verify the config of" + " `pipeline.unet` or your `image` input." + ) + + # 8. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 9. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + + # concat latents, mask, masked_image_latents in the channel dimension + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + latent_model_input = torch.cat([latent_model_input, image], dim=1) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + class_labels=noise_level, + return_dict=False, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + + if needs_upcasting: + self.upcast_vae() + + # Ensure latents are always the same type as the VAE + latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + + image, has_nsfw_concept, _ = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # 11. Apply watermark + if output_type == "pil" and self.watermarker is not None: + image = self.watermarker.apply_watermark(image) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_unclip.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_unclip.py new file mode 100644 index 0000000000000000000000000000000000000000..a134244e3ee4ecfbc881fe0c4b2f917a8fb153a4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_unclip.py @@ -0,0 +1,952 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import torch +from transformers import CLIPTextModel, CLIPTextModelWithProjection, CLIPTokenizer +from transformers.models.clip.modeling_clip import CLIPTextModelOutput + +from ...image_processor import VaeImageProcessor +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, PriorTransformer, UNet2DConditionModel +from ...models.embeddings import get_timestep_embedding +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, ImagePipelineOutput, StableDiffusionMixin +from .stable_unclip_image_normalizer import StableUnCLIPImageNormalizer + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableUnCLIPPipeline + + >>> pipe = StableUnCLIPPipeline.from_pretrained( + ... "fusing/stable-unclip-2-1-l", torch_dtype=torch.float16 + ... ) # TODO update model path + >>> pipe = pipe.to("cuda") + + >>> prompt = "a photo of an astronaut riding a horse on mars" + >>> images = pipe(prompt).images + >>> images[0].save("astronaut_horse.png") + ``` +""" + + +class StableUnCLIPPipeline( + DiffusionPipeline, StableDiffusionMixin, TextualInversionLoaderMixin, StableDiffusionLoraLoaderMixin +): + """ + Pipeline for text-to-image generation using stable unCLIP. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + Args: + prior_tokenizer ([`CLIPTokenizer`]): + A [`CLIPTokenizer`]. + prior_text_encoder ([`CLIPTextModelWithProjection`]): + Frozen [`CLIPTextModelWithProjection`] text-encoder. + prior ([`PriorTransformer`]): + The canonical unCLIP prior to approximate the image embedding from the text embedding. + prior_scheduler ([`KarrasDiffusionSchedulers`]): + Scheduler used in the prior denoising process. + image_normalizer ([`StableUnCLIPImageNormalizer`]): + Used to normalize the predicted image embeddings before the noise is applied and un-normalize the image + embeddings after the noise has been applied. + image_noising_scheduler ([`KarrasDiffusionSchedulers`]): + Noise schedule for adding noise to the predicted image embeddings. The amount of noise to add is determined + by the `noise_level`. + tokenizer ([`CLIPTokenizer`]): + A [`CLIPTokenizer`]. + text_encoder ([`CLIPTextModel`]): + Frozen [`CLIPTextModel`] text-encoder. + unet ([`UNet2DConditionModel`]): + A [`UNet2DConditionModel`] to denoise the encoded image latents. + scheduler ([`KarrasDiffusionSchedulers`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + """ + + _exclude_from_cpu_offload = ["prior", "image_normalizer"] + model_cpu_offload_seq = "text_encoder->prior_text_encoder->unet->vae" + + # prior components + prior_tokenizer: CLIPTokenizer + prior_text_encoder: CLIPTextModelWithProjection + prior: PriorTransformer + prior_scheduler: KarrasDiffusionSchedulers + + # image noising components + image_normalizer: StableUnCLIPImageNormalizer + image_noising_scheduler: KarrasDiffusionSchedulers + + # regular denoising components + tokenizer: CLIPTokenizer + text_encoder: CLIPTextModel + unet: UNet2DConditionModel + scheduler: KarrasDiffusionSchedulers + + vae: AutoencoderKL + + def __init__( + self, + # prior components + prior_tokenizer: CLIPTokenizer, + prior_text_encoder: CLIPTextModelWithProjection, + prior: PriorTransformer, + prior_scheduler: KarrasDiffusionSchedulers, + # image noising components + image_normalizer: StableUnCLIPImageNormalizer, + image_noising_scheduler: KarrasDiffusionSchedulers, + # regular denoising components + tokenizer: CLIPTokenizer, + text_encoder: CLIPTextModel, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + # vae + vae: AutoencoderKL, + ): + super().__init__() + + self.register_modules( + prior_tokenizer=prior_tokenizer, + prior_text_encoder=prior_text_encoder, + prior=prior, + prior_scheduler=prior_scheduler, + image_normalizer=image_normalizer, + image_noising_scheduler=image_noising_scheduler, + tokenizer=tokenizer, + text_encoder=text_encoder, + unet=unet, + scheduler=scheduler, + vae=vae, + ) + + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + # Copied from diffusers.pipelines.unclip.pipeline_unclip.UnCLIPPipeline._encode_prompt with _encode_prompt->_encode_prior_prompt, tokenizer->prior_tokenizer, text_encoder->prior_text_encoder + def _encode_prior_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + text_model_output: Optional[Union[CLIPTextModelOutput, Tuple]] = None, + text_attention_mask: Optional[torch.Tensor] = None, + ): + if text_model_output is None: + batch_size = len(prompt) if isinstance(prompt, list) else 1 + # get prompt text embeddings + text_inputs = self.prior_tokenizer( + prompt, + padding="max_length", + max_length=self.prior_tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + text_mask = text_inputs.attention_mask.bool().to(device) + + untruncated_ids = self.prior_tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.prior_tokenizer.batch_decode( + untruncated_ids[:, self.prior_tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.prior_tokenizer.model_max_length} tokens: {removed_text}" + ) + text_input_ids = text_input_ids[:, : self.prior_tokenizer.model_max_length] + + prior_text_encoder_output = self.prior_text_encoder(text_input_ids.to(device)) + + prompt_embeds = prior_text_encoder_output.text_embeds + text_enc_hid_states = prior_text_encoder_output.last_hidden_state + + else: + batch_size = text_model_output[0].shape[0] + prompt_embeds, text_enc_hid_states = text_model_output[0], text_model_output[1] + text_mask = text_attention_mask + + prompt_embeds = prompt_embeds.repeat_interleave(num_images_per_prompt, dim=0) + text_enc_hid_states = text_enc_hid_states.repeat_interleave(num_images_per_prompt, dim=0) + text_mask = text_mask.repeat_interleave(num_images_per_prompt, dim=0) + + if do_classifier_free_guidance: + uncond_tokens = [""] * batch_size + + uncond_input = self.prior_tokenizer( + uncond_tokens, + padding="max_length", + max_length=self.prior_tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + uncond_text_mask = uncond_input.attention_mask.bool().to(device) + negative_prompt_embeds_prior_text_encoder_output = self.prior_text_encoder( + uncond_input.input_ids.to(device) + ) + + negative_prompt_embeds = negative_prompt_embeds_prior_text_encoder_output.text_embeds + uncond_text_enc_hid_states = negative_prompt_embeds_prior_text_encoder_output.last_hidden_state + + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + + seq_len = negative_prompt_embeds.shape[1] + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len) + + seq_len = uncond_text_enc_hid_states.shape[1] + uncond_text_enc_hid_states = uncond_text_enc_hid_states.repeat(1, num_images_per_prompt, 1) + uncond_text_enc_hid_states = uncond_text_enc_hid_states.view( + batch_size * num_images_per_prompt, seq_len, -1 + ) + uncond_text_mask = uncond_text_mask.repeat_interleave(num_images_per_prompt, dim=0) + + # done duplicates + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + text_enc_hid_states = torch.cat([uncond_text_enc_hid_states, text_enc_hid_states]) + + text_mask = torch.cat([uncond_text_mask, text_mask]) + + return prompt_embeds, text_enc_hid_states, text_mask + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs with prepare_extra_step_kwargs->prepare_prior_extra_step_kwargs, scheduler->prior_scheduler + def prepare_prior_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the prior_scheduler step, since not all prior_schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other prior_schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.prior_scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the prior_scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.prior_scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + noise_level, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Please make sure to define only one of the two." + ) + + if prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + + if prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + "Provide either `negative_prompt` or `negative_prompt_embeds`. Cannot leave both `negative_prompt` and `negative_prompt_embeds` undefined." + ) + + if prompt is not None and negative_prompt is not None: + if type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if noise_level < 0 or noise_level >= self.image_noising_scheduler.config.num_train_timesteps: + raise ValueError( + f"`noise_level` must be between 0 and {self.image_noising_scheduler.config.num_train_timesteps - 1}, inclusive." + ) + + # Copied from diffusers.pipelines.unclip.pipeline_unclip.UnCLIPPipeline.prepare_latents + def prepare_latents(self, shape, dtype, device, generator, latents, scheduler): + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def noise_image_embeddings( + self, + image_embeds: torch.Tensor, + noise_level: int, + noise: Optional[torch.Tensor] = None, + generator: Optional[torch.Generator] = None, + ): + """ + Add noise to the image embeddings. The amount of noise is controlled by a `noise_level` input. A higher + `noise_level` increases the variance in the final un-noised images. + + The noise is applied in two ways: + 1. A noise schedule is applied directly to the embeddings. + 2. A vector of sinusoidal time embeddings are appended to the output. + + In both cases, the amount of noise is controlled by the same `noise_level`. + + The embeddings are normalized before the noise is applied and un-normalized after the noise is applied. + """ + if noise is None: + noise = randn_tensor( + image_embeds.shape, generator=generator, device=image_embeds.device, dtype=image_embeds.dtype + ) + + noise_level = torch.tensor([noise_level] * image_embeds.shape[0], device=image_embeds.device) + + self.image_normalizer.to(image_embeds.device) + image_embeds = self.image_normalizer.scale(image_embeds) + + image_embeds = self.image_noising_scheduler.add_noise(image_embeds, timesteps=noise_level, noise=noise) + + image_embeds = self.image_normalizer.unscale(image_embeds) + + noise_level = get_timestep_embedding( + timesteps=noise_level, embedding_dim=image_embeds.shape[-1], flip_sin_to_cos=True, downscale_freq_shift=0 + ) + + # `get_timestep_embeddings` does not contain any weights and will always return f32 tensors, + # but we might actually be running in fp16. so we need to cast here. + # there might be better ways to encapsulate this. + noise_level = noise_level.to(image_embeds.dtype) + + image_embeds = torch.cat((image_embeds, noise_level), 1) + + return image_embeds + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + # regular denoising process args + prompt: Optional[Union[str, List[str]]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 20, + guidance_scale: float = 10.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[torch.Generator] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + noise_level: int = 0, + # prior args + prior_num_inference_steps: int = 25, + prior_guidance_scale: float = 4.0, + prior_latents: Optional[torch.Tensor] = None, + clip_skip: Optional[int] = None, + ): + """ + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 20): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 10.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + noise_level (`int`, *optional*, defaults to `0`): + The amount of noise to add to the image embeddings. A higher `noise_level` increases the variance in + the final un-noised images. See [`StableUnCLIPPipeline.noise_image_embeddings`] for more details. + prior_num_inference_steps (`int`, *optional*, defaults to 25): + The number of denoising steps in the prior denoising process. More denoising steps usually lead to a + higher quality image at the expense of slower inference. + prior_guidance_scale (`float`, *optional*, defaults to 4.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + prior_latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + embedding generation in the prior denoising process. Can be used to tweak the same generation with + different prompts. If not provided, a latents tensor is generated by sampling using the supplied random + `generator`. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Examples: + + Returns: + [`~pipelines.ImagePipelineOutput`] or `tuple`: + [`~ pipeline_utils.ImagePipelineOutput`] if `return_dict` is True, otherwise a `tuple`. When returning + a tuple, the first element is a list with the generated images. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt=prompt, + height=height, + width=width, + callback_steps=callback_steps, + noise_level=noise_level, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + batch_size = batch_size * num_images_per_prompt + + device = self._execution_device + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + prior_do_classifier_free_guidance = prior_guidance_scale > 1.0 + + # 3. Encode input prompt + prior_prompt_embeds, prior_text_encoder_hidden_states, prior_text_mask = self._encode_prior_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=prior_do_classifier_free_guidance, + ) + + # 4. Prepare prior timesteps + self.prior_scheduler.set_timesteps(prior_num_inference_steps, device=device) + prior_timesteps_tensor = self.prior_scheduler.timesteps + + # 5. Prepare prior latent variables + embedding_dim = self.prior.config.embedding_dim + prior_latents = self.prepare_latents( + (batch_size, embedding_dim), + prior_prompt_embeds.dtype, + device, + generator, + prior_latents, + self.prior_scheduler, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + prior_extra_step_kwargs = self.prepare_prior_extra_step_kwargs(generator, eta) + + # 7. Prior denoising loop + for i, t in enumerate(self.progress_bar(prior_timesteps_tensor)): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([prior_latents] * 2) if prior_do_classifier_free_guidance else prior_latents + latent_model_input = self.prior_scheduler.scale_model_input(latent_model_input, t) + + predicted_image_embedding = self.prior( + latent_model_input, + timestep=t, + proj_embedding=prior_prompt_embeds, + encoder_hidden_states=prior_text_encoder_hidden_states, + attention_mask=prior_text_mask, + ).predicted_image_embedding + + if prior_do_classifier_free_guidance: + predicted_image_embedding_uncond, predicted_image_embedding_text = predicted_image_embedding.chunk(2) + predicted_image_embedding = predicted_image_embedding_uncond + prior_guidance_scale * ( + predicted_image_embedding_text - predicted_image_embedding_uncond + ) + + prior_latents = self.prior_scheduler.step( + predicted_image_embedding, + timestep=t, + sample=prior_latents, + **prior_extra_step_kwargs, + return_dict=False, + )[0] + + if callback is not None and i % callback_steps == 0: + callback(i, t, prior_latents) + + prior_latents = self.prior.post_process_latents(prior_latents) + + image_embeds = prior_latents + + # done prior + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 8. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 9. Prepare image embeddings + image_embeds = self.noise_image_embeddings( + image_embeds=image_embeds, + noise_level=noise_level, + generator=generator, + ) + + if do_classifier_free_guidance: + negative_prompt_embeds = torch.zeros_like(image_embeds) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + image_embeds = torch.cat([negative_prompt_embeds, image_embeds]) + + # 10. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 11. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + latents = self.prepare_latents( + shape=shape, + dtype=prompt_embeds.dtype, + device=device, + generator=generator, + latents=latents, + scheduler=self.scheduler, + ) + + # 12. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 13. Denoising loop + for i, t in enumerate(self.progress_bar(timesteps)): + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + class_labels=image_embeds, + cross_attention_kwargs=cross_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + else: + image = latents + + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return ImagePipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_unclip_img2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_unclip_img2img.py new file mode 100644 index 0000000000000000000000000000000000000000..abb4cc3a05d51ed0164120abb688267ec5e2af58 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/pipeline_stable_unclip_img2img.py @@ -0,0 +1,858 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...image_processor import VaeImageProcessor +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.embeddings import get_timestep_embedding +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, ImagePipelineOutput, StableDiffusionMixin +from .stable_unclip_image_normalizer import StableUnCLIPImageNormalizer + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import requests + >>> import torch + >>> from PIL import Image + >>> from io import BytesIO + + >>> from diffusers import StableUnCLIPImg2ImgPipeline + + >>> pipe = StableUnCLIPImg2ImgPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-2-1-unclip-small", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> url = "https://raw.githubusercontent.com/CompVis/stable-diffusion/main/assets/stable-samples/img2img/sketch-mountains-input.jpg" + + >>> response = requests.get(url) + >>> init_image = Image.open(BytesIO(response.content)).convert("RGB") + >>> init_image = init_image.resize((768, 512)) + + >>> prompt = "A fantasy landscape, trending on artstation" + + >>> images = pipe(init_image, prompt).images + >>> images[0].save("fantasy_landscape.png") + ``` +""" + + +class StableUnCLIPImg2ImgPipeline( + DiffusionPipeline, StableDiffusionMixin, TextualInversionLoaderMixin, StableDiffusionLoraLoaderMixin +): + """ + Pipeline for text-guided image-to-image generation using stable unCLIP. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + Args: + feature_extractor ([`CLIPImageProcessor`]): + Feature extractor for image pre-processing before being encoded. + image_encoder ([`CLIPVisionModelWithProjection`]): + CLIP vision model for encoding images. + image_normalizer ([`StableUnCLIPImageNormalizer`]): + Used to normalize the predicted image embeddings before the noise is applied and un-normalize the image + embeddings after the noise has been applied. + image_noising_scheduler ([`KarrasDiffusionSchedulers`]): + Noise schedule for adding noise to the predicted image embeddings. The amount of noise to add is determined + by the `noise_level`. + tokenizer (`~transformers.CLIPTokenizer`): + A [`~transformers.CLIPTokenizer`)]. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen [`~transformers.CLIPTextModel`] text-encoder. + unet ([`UNet2DConditionModel`]): + A [`UNet2DConditionModel`] to denoise the encoded image latents. + scheduler ([`KarrasDiffusionSchedulers`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + """ + + model_cpu_offload_seq = "text_encoder->image_encoder->unet->vae" + _exclude_from_cpu_offload = ["image_normalizer"] + + # image encoding components + feature_extractor: CLIPImageProcessor + image_encoder: CLIPVisionModelWithProjection + + # image noising components + image_normalizer: StableUnCLIPImageNormalizer + image_noising_scheduler: KarrasDiffusionSchedulers + + # regular denoising components + tokenizer: CLIPTokenizer + text_encoder: CLIPTextModel + unet: UNet2DConditionModel + scheduler: KarrasDiffusionSchedulers + + vae: AutoencoderKL + + def __init__( + self, + # image encoding components + feature_extractor: CLIPImageProcessor, + image_encoder: CLIPVisionModelWithProjection, + # image noising components + image_normalizer: StableUnCLIPImageNormalizer, + image_noising_scheduler: KarrasDiffusionSchedulers, + # regular denoising components + tokenizer: CLIPTokenizer, + text_encoder: CLIPTextModel, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + # vae + vae: AutoencoderKL, + ): + super().__init__() + + self.register_modules( + feature_extractor=feature_extractor, + image_encoder=image_encoder, + image_normalizer=image_normalizer, + image_noising_scheduler=image_noising_scheduler, + tokenizer=tokenizer, + text_encoder=text_encoder, + unet=unet, + scheduler=scheduler, + vae=vae, + ) + + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + def _encode_image( + self, + image, + device, + batch_size, + num_images_per_prompt, + do_classifier_free_guidance, + noise_level, + generator, + image_embeds, + ): + dtype = next(self.image_encoder.parameters()).dtype + + if isinstance(image, PIL.Image.Image): + # the image embedding should repeated so it matches the total batch size of the prompt + repeat_by = batch_size + else: + # assume the image input is already properly batched and just needs to be repeated so + # it matches the num_images_per_prompt. + # + # NOTE(will) this is probably missing a few number of side cases. I.e. batched/non-batched + # `image_embeds`. If those happen to be common use cases, let's think harder about + # what the expected dimensions of inputs should be and how we handle the encoding. + repeat_by = num_images_per_prompt + + if image_embeds is None: + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(images=image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + image_embeds = self.image_encoder(image).image_embeds + + image_embeds = self.noise_image_embeddings( + image_embeds=image_embeds, + noise_level=noise_level, + generator=generator, + ) + + # duplicate image embeddings for each generation per prompt, using mps friendly method + image_embeds = image_embeds.unsqueeze(1) + bs_embed, seq_len, _ = image_embeds.shape + image_embeds = image_embeds.repeat(1, repeat_by, 1) + image_embeds = image_embeds.view(bs_embed * repeat_by, seq_len, -1) + image_embeds = image_embeds.squeeze(1) + + if do_classifier_free_guidance: + negative_prompt_embeds = torch.zeros_like(image_embeds) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + image_embeds = torch.cat([negative_prompt_embeds, image_embeds]) + + return image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + image, + height, + width, + callback_steps, + noise_level, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + image_embeds=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Please make sure to define only one of the two." + ) + + if prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + + if prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + "Provide either `negative_prompt` or `negative_prompt_embeds`. Cannot leave both `negative_prompt` and `negative_prompt_embeds` undefined." + ) + + if prompt is not None and negative_prompt is not None: + if type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if noise_level < 0 or noise_level >= self.image_noising_scheduler.config.num_train_timesteps: + raise ValueError( + f"`noise_level` must be between 0 and {self.image_noising_scheduler.config.num_train_timesteps - 1}, inclusive." + ) + + if image is not None and image_embeds is not None: + raise ValueError( + "Provide either `image` or `image_embeds`. Please make sure to define only one of the two." + ) + + if image is None and image_embeds is None: + raise ValueError( + "Provide either `image` or `image_embeds`. Cannot leave both `image` and `image_embeds` undefined." + ) + + if image is not None: + if ( + not isinstance(image, torch.Tensor) + and not isinstance(image, PIL.Image.Image) + and not isinstance(image, list) + ): + raise ValueError( + "`image` has to be of type `torch.Tensor` or `PIL.Image.Image` or `List[PIL.Image.Image]` but is" + f" {type(image)}" + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_unclip.StableUnCLIPPipeline.noise_image_embeddings + def noise_image_embeddings( + self, + image_embeds: torch.Tensor, + noise_level: int, + noise: Optional[torch.Tensor] = None, + generator: Optional[torch.Generator] = None, + ): + """ + Add noise to the image embeddings. The amount of noise is controlled by a `noise_level` input. A higher + `noise_level` increases the variance in the final un-noised images. + + The noise is applied in two ways: + 1. A noise schedule is applied directly to the embeddings. + 2. A vector of sinusoidal time embeddings are appended to the output. + + In both cases, the amount of noise is controlled by the same `noise_level`. + + The embeddings are normalized before the noise is applied and un-normalized after the noise is applied. + """ + if noise is None: + noise = randn_tensor( + image_embeds.shape, generator=generator, device=image_embeds.device, dtype=image_embeds.dtype + ) + + noise_level = torch.tensor([noise_level] * image_embeds.shape[0], device=image_embeds.device) + + self.image_normalizer.to(image_embeds.device) + image_embeds = self.image_normalizer.scale(image_embeds) + + image_embeds = self.image_noising_scheduler.add_noise(image_embeds, timesteps=noise_level, noise=noise) + + image_embeds = self.image_normalizer.unscale(image_embeds) + + noise_level = get_timestep_embedding( + timesteps=noise_level, embedding_dim=image_embeds.shape[-1], flip_sin_to_cos=True, downscale_freq_shift=0 + ) + + # `get_timestep_embeddings` does not contain any weights and will always return f32 tensors, + # but we might actually be running in fp16. so we need to cast here. + # there might be better ways to encapsulate this. + noise_level = noise_level.to(image_embeds.dtype) + + image_embeds = torch.cat((image_embeds, noise_level), 1) + + return image_embeds + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image: Union[torch.Tensor, PIL.Image.Image] = None, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 20, + guidance_scale: float = 10, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[torch.Generator] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + noise_level: int = 0, + image_embeds: Optional[torch.Tensor] = None, + clip_skip: Optional[int] = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, either `prompt_embeds` will be + used or prompt is initialized to `""`. + image (`torch.Tensor` or `PIL.Image.Image`): + `Image` or tensor representing an image batch. The image is encoded to its CLIP embedding which the + `unet` is conditioned on. The image is _not_ encoded by the `vae` and then used as the latents in the + denoising process like it is in the standard Stable Diffusion text-guided image variation process. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 20): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 10.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + noise_level (`int`, *optional*, defaults to `0`): + The amount of noise to add to the image embeddings. A higher `noise_level` increases the variance in + the final un-noised images. See [`StableUnCLIPPipeline.noise_image_embeddings`] for more details. + image_embeds (`torch.Tensor`, *optional*): + Pre-generated CLIP embeddings to condition the `unet` on. These latents are not used in the denoising + process. If you want to provide pre-generated latents, pass them to `__call__` as `latents`. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + + Examples: + + Returns: + [`~pipelines.ImagePipelineOutput`] or `tuple`: + [`~ pipeline_utils.ImagePipelineOutput`] if `return_dict` is True, otherwise a `tuple`. When returning + a tuple, the first element is a list with the generated images. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + if prompt is None and prompt_embeds is None: + prompt = len(image) * [""] if isinstance(image, list) else "" + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt=prompt, + image=image, + height=height, + width=width, + callback_steps=callback_steps, + noise_level=noise_level, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + image_embeds=image_embeds, + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + batch_size = batch_size * num_images_per_prompt + + device = self._execution_device + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Encoder input image + noise_level = torch.tensor([noise_level], device=device) + image_embeds = self._encode_image( + image=image, + device=device, + batch_size=batch_size, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + noise_level=noise_level, + generator=generator, + image_embeds=image_embeds, + ) + + # 5. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 6. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + if latents is None: + latents = self.prepare_latents( + batch_size=batch_size, + num_channels_latents=num_channels_latents, + height=height, + width=width, + dtype=prompt_embeds.dtype, + device=device, + generator=generator, + latents=latents, + ) + + # 7. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 8. Denoising loop + for i, t in enumerate(self.progress_bar(timesteps)): + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + class_labels=image_embeds, + cross_attention_kwargs=cross_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # 9. Post-processing + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + else: + image = latents + + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return ImagePipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/safety_checker.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/safety_checker.py new file mode 100644 index 0000000000000000000000000000000000000000..16aff102599ca7fe3399dff9de54aafb9e5333df --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/safety_checker.py @@ -0,0 +1,126 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import numpy as np +import torch +import torch.nn as nn +from transformers import CLIPConfig, CLIPVisionModel, PreTrainedModel + +from ...utils import logging + + +logger = logging.get_logger(__name__) + + +def cosine_distance(image_embeds, text_embeds): + normalized_image_embeds = nn.functional.normalize(image_embeds) + normalized_text_embeds = nn.functional.normalize(text_embeds) + return torch.mm(normalized_image_embeds, normalized_text_embeds.t()) + + +class StableDiffusionSafetyChecker(PreTrainedModel): + config_class = CLIPConfig + main_input_name = "clip_input" + + _no_split_modules = ["CLIPEncoderLayer"] + + def __init__(self, config: CLIPConfig): + super().__init__(config) + + self.vision_model = CLIPVisionModel(config.vision_config) + self.visual_projection = nn.Linear(config.vision_config.hidden_size, config.projection_dim, bias=False) + + self.concept_embeds = nn.Parameter(torch.ones(17, config.projection_dim), requires_grad=False) + self.special_care_embeds = nn.Parameter(torch.ones(3, config.projection_dim), requires_grad=False) + + self.concept_embeds_weights = nn.Parameter(torch.ones(17), requires_grad=False) + self.special_care_embeds_weights = nn.Parameter(torch.ones(3), requires_grad=False) + + @torch.no_grad() + def forward(self, clip_input, images): + pooled_output = self.vision_model(clip_input)[1] # pooled_output + image_embeds = self.visual_projection(pooled_output) + + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + special_cos_dist = cosine_distance(image_embeds, self.special_care_embeds).cpu().float().numpy() + cos_dist = cosine_distance(image_embeds, self.concept_embeds).cpu().float().numpy() + + result = [] + batch_size = image_embeds.shape[0] + for i in range(batch_size): + result_img = {"special_scores": {}, "special_care": [], "concept_scores": {}, "bad_concepts": []} + + # increase this value to create a stronger `nfsw` filter + # at the cost of increasing the possibility of filtering benign images + adjustment = 0.0 + + for concept_idx in range(len(special_cos_dist[0])): + concept_cos = special_cos_dist[i][concept_idx] + concept_threshold = self.special_care_embeds_weights[concept_idx].item() + result_img["special_scores"][concept_idx] = round(concept_cos - concept_threshold + adjustment, 3) + if result_img["special_scores"][concept_idx] > 0: + result_img["special_care"].append({concept_idx, result_img["special_scores"][concept_idx]}) + adjustment = 0.01 + + for concept_idx in range(len(cos_dist[0])): + concept_cos = cos_dist[i][concept_idx] + concept_threshold = self.concept_embeds_weights[concept_idx].item() + result_img["concept_scores"][concept_idx] = round(concept_cos - concept_threshold + adjustment, 3) + if result_img["concept_scores"][concept_idx] > 0: + result_img["bad_concepts"].append(concept_idx) + + result.append(result_img) + + has_nsfw_concepts = [len(res["bad_concepts"]) > 0 for res in result] + + for idx, has_nsfw_concept in enumerate(has_nsfw_concepts): + if has_nsfw_concept: + if torch.is_tensor(images) or torch.is_tensor(images[0]): + images[idx] = torch.zeros_like(images[idx]) # black image + else: + images[idx] = np.zeros(images[idx].shape) # black image + + if any(has_nsfw_concepts): + logger.warning( + "Potential NSFW content was detected in one or more images. A black image will be returned instead." + " Try again with a different prompt and/or seed." + ) + + return images, has_nsfw_concepts + + @torch.no_grad() + def forward_onnx(self, clip_input: torch.Tensor, images: torch.Tensor): + pooled_output = self.vision_model(clip_input)[1] # pooled_output + image_embeds = self.visual_projection(pooled_output) + + special_cos_dist = cosine_distance(image_embeds, self.special_care_embeds) + cos_dist = cosine_distance(image_embeds, self.concept_embeds) + + # increase this value to create a stronger `nsfw` filter + # at the cost of increasing the possibility of filtering benign images + adjustment = 0.0 + + special_scores = special_cos_dist - self.special_care_embeds_weights + adjustment + # special_scores = special_scores.round(decimals=3) + special_care = torch.any(special_scores > 0, dim=1) + special_adjustment = special_care * 0.01 + special_adjustment = special_adjustment.unsqueeze(1).expand(-1, cos_dist.shape[1]) + + concept_scores = (cos_dist - self.concept_embeds_weights) + special_adjustment + # concept_scores = concept_scores.round(decimals=3) + has_nsfw_concepts = torch.any(concept_scores > 0, dim=1) + + images[has_nsfw_concepts] = 0.0 # black image + + return images, has_nsfw_concepts diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/safety_checker_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/safety_checker_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..55d5023b686994a731041a83bd716862812e3fac --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/safety_checker_flax.py @@ -0,0 +1,112 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Optional, Tuple + +import jax +import jax.numpy as jnp +from flax import linen as nn +from flax.core.frozen_dict import FrozenDict +from transformers import CLIPConfig, FlaxPreTrainedModel +from transformers.models.clip.modeling_flax_clip import FlaxCLIPVisionModule + + +def jax_cosine_distance(emb_1, emb_2, eps=1e-12): + norm_emb_1 = jnp.divide(emb_1.T, jnp.clip(jnp.linalg.norm(emb_1, axis=1), a_min=eps)).T + norm_emb_2 = jnp.divide(emb_2.T, jnp.clip(jnp.linalg.norm(emb_2, axis=1), a_min=eps)).T + return jnp.matmul(norm_emb_1, norm_emb_2.T) + + +class FlaxStableDiffusionSafetyCheckerModule(nn.Module): + config: CLIPConfig + dtype: jnp.dtype = jnp.float32 + + def setup(self): + self.vision_model = FlaxCLIPVisionModule(self.config.vision_config) + self.visual_projection = nn.Dense(self.config.projection_dim, use_bias=False, dtype=self.dtype) + + self.concept_embeds = self.param("concept_embeds", jax.nn.initializers.ones, (17, self.config.projection_dim)) + self.special_care_embeds = self.param( + "special_care_embeds", jax.nn.initializers.ones, (3, self.config.projection_dim) + ) + + self.concept_embeds_weights = self.param("concept_embeds_weights", jax.nn.initializers.ones, (17,)) + self.special_care_embeds_weights = self.param("special_care_embeds_weights", jax.nn.initializers.ones, (3,)) + + def __call__(self, clip_input): + pooled_output = self.vision_model(clip_input)[1] + image_embeds = self.visual_projection(pooled_output) + + special_cos_dist = jax_cosine_distance(image_embeds, self.special_care_embeds) + cos_dist = jax_cosine_distance(image_embeds, self.concept_embeds) + + # increase this value to create a stronger `nfsw` filter + # at the cost of increasing the possibility of filtering benign image inputs + adjustment = 0.0 + + special_scores = special_cos_dist - self.special_care_embeds_weights[None, :] + adjustment + special_scores = jnp.round(special_scores, 3) + is_special_care = jnp.any(special_scores > 0, axis=1, keepdims=True) + # Use a lower threshold if an image has any special care concept + special_adjustment = is_special_care * 0.01 + + concept_scores = cos_dist - self.concept_embeds_weights[None, :] + special_adjustment + concept_scores = jnp.round(concept_scores, 3) + has_nsfw_concepts = jnp.any(concept_scores > 0, axis=1) + + return has_nsfw_concepts + + +class FlaxStableDiffusionSafetyChecker(FlaxPreTrainedModel): + config_class = CLIPConfig + main_input_name = "clip_input" + module_class = FlaxStableDiffusionSafetyCheckerModule + + def __init__( + self, + config: CLIPConfig, + input_shape: Optional[Tuple] = None, + seed: int = 0, + dtype: jnp.dtype = jnp.float32, + _do_init: bool = True, + **kwargs, + ): + if input_shape is None: + input_shape = (1, 224, 224, 3) + module = self.module_class(config=config, dtype=dtype, **kwargs) + super().__init__(config, module, input_shape=input_shape, seed=seed, dtype=dtype, _do_init=_do_init) + + def init_weights(self, rng: jax.Array, input_shape: Tuple, params: FrozenDict = None) -> FrozenDict: + # init input tensor + clip_input = jax.random.normal(rng, input_shape) + + params_rng, dropout_rng = jax.random.split(rng) + rngs = {"params": params_rng, "dropout": dropout_rng} + + random_params = self.module.init(rngs, clip_input)["params"] + + return random_params + + def __call__( + self, + clip_input, + params: dict = None, + ): + clip_input = jnp.transpose(clip_input, (0, 2, 3, 1)) + + return self.module.apply( + {"params": params or self.params}, + jnp.array(clip_input, dtype=jnp.float32), + rngs={}, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/stable_unclip_image_normalizer.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/stable_unclip_image_normalizer.py new file mode 100644 index 0000000000000000000000000000000000000000..ffd66792fe463c775027362b1b63fff250f3b52f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion/stable_unclip_image_normalizer.py @@ -0,0 +1,57 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Optional, Union + +import torch +from torch import nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models.modeling_utils import ModelMixin + + +class StableUnCLIPImageNormalizer(ModelMixin, ConfigMixin): + """ + This class is used to hold the mean and standard deviation of the CLIP embedder used in stable unCLIP. + + It is used to normalize the image embeddings before the noise is applied and un-normalize the noised image + embeddings. + """ + + @register_to_config + def __init__( + self, + embedding_dim: int = 768, + ): + super().__init__() + + self.mean = nn.Parameter(torch.zeros(1, embedding_dim)) + self.std = nn.Parameter(torch.ones(1, embedding_dim)) + + def to( + self, + torch_device: Optional[Union[str, torch.device]] = None, + torch_dtype: Optional[torch.dtype] = None, + ): + self.mean = nn.Parameter(self.mean.to(torch_device).to(torch_dtype)) + self.std = nn.Parameter(self.std.to(torch_device).to(torch_dtype)) + return self + + def scale(self, embeds): + embeds = (embeds - self.mean) * 1.0 / self.std + return embeds + + def unscale(self, embeds): + embeds = (embeds * self.std) + self.mean + return embeds diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..b0604589a208d0c5c1270629dcad144395b750cb --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/__init__.py @@ -0,0 +1,54 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_flax_available, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_additional_imports = {} +_import_structure = {"pipeline_output": ["StableDiffusion3PipelineOutput"]} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_3"] = ["StableDiffusion3Pipeline"] + _import_structure["pipeline_stable_diffusion_3_img2img"] = ["StableDiffusion3Img2ImgPipeline"] + _import_structure["pipeline_stable_diffusion_3_inpaint"] = ["StableDiffusion3InpaintPipeline"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * # noqa F403 + else: + from .pipeline_stable_diffusion_3 import StableDiffusion3Pipeline + from .pipeline_stable_diffusion_3_img2img import StableDiffusion3Img2ImgPipeline + from .pipeline_stable_diffusion_3_inpaint import StableDiffusion3InpaintPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) + for name, value in _additional_imports.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..4655f446102a7f2db93743abdba9acc038270862 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_output.py @@ -0,0 +1,21 @@ +from dataclasses import dataclass +from typing import List, Union + +import numpy as np +import PIL.Image + +from ...utils import BaseOutput + + +@dataclass +class StableDiffusion3PipelineOutput(BaseOutput): + """ + Output class for Stable Diffusion pipelines. + + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or numpy array of shape `(batch_size, height, width, + num_channels)`. PIL images or numpy array present the denoised images of the diffusion pipeline. + """ + + images: Union[List[PIL.Image.Image], np.ndarray] diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3.py new file mode 100644 index 0000000000000000000000000000000000000000..660d9801df56da164d8bdc492245741d63f35359 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3.py @@ -0,0 +1,1140 @@ +# Copyright 2025 Stability AI, The HuggingFace Team and The InstantX Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import torch +from transformers import ( + CLIPTextModelWithProjection, + CLIPTokenizer, + SiglipImageProcessor, + SiglipVisionModel, + T5EncoderModel, + T5TokenizerFast, +) + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, SD3IPAdapterMixin, SD3LoraLoaderMixin +from ...models.autoencoders import AutoencoderKL +from ...models.transformers import SD3Transformer2DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import ( + USE_PEFT_BACKEND, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import StableDiffusion3PipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusion3Pipeline + + >>> pipe = StableDiffusion3Pipeline.from_pretrained( + ... "stabilityai/stable-diffusion-3-medium-diffusers", torch_dtype=torch.float16 + ... ) + >>> pipe.to("cuda") + >>> prompt = "A cat holding a sign that says hello world" + >>> image = pipe(prompt).images[0] + >>> image.save("sd3.png") + ``` +""" + + +# Copied from diffusers.pipelines.flux.pipeline_flux.calculate_shift +def calculate_shift( + image_seq_len, + base_seq_len: int = 256, + max_seq_len: int = 4096, + base_shift: float = 0.5, + max_shift: float = 1.15, +): + m = (max_shift - base_shift) / (max_seq_len - base_seq_len) + b = base_shift - m * base_seq_len + mu = image_seq_len * m + b + return mu + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusion3Pipeline(DiffusionPipeline, SD3LoraLoaderMixin, FromSingleFileMixin, SD3IPAdapterMixin): + r""" + Args: + transformer ([`SD3Transformer2DModel`]): + Conditional Transformer (MMDiT) architecture to denoise the encoded image latents. + scheduler ([`FlowMatchEulerDiscreteScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModelWithProjection`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant, + with an additional added projection layer that is initialized with a diagonal matrix with the `hidden_size` + as its dimension. + text_encoder_2 ([`CLIPTextModelWithProjection`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + text_encoder_3 ([`T5EncoderModel`]): + Frozen text-encoder. Stable Diffusion 3 uses + [T5](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5EncoderModel), specifically the + [t5-v1_1-xxl](https://huggingface.co/google/t5-v1_1-xxl) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_3 (`T5TokenizerFast`): + Tokenizer of class + [T5Tokenizer](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5Tokenizer). + image_encoder (`SiglipVisionModel`, *optional*): + Pre-trained Vision Model for IP Adapter. + feature_extractor (`SiglipImageProcessor`, *optional*): + Image processor for IP Adapter. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->text_encoder_3->image_encoder->transformer->vae" + _optional_components = ["image_encoder", "feature_extractor"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "pooled_prompt_embeds"] + + def __init__( + self, + transformer: SD3Transformer2DModel, + scheduler: FlowMatchEulerDiscreteScheduler, + vae: AutoencoderKL, + text_encoder: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer_2: CLIPTokenizer, + text_encoder_3: T5EncoderModel, + tokenizer_3: T5TokenizerFast, + image_encoder: SiglipVisionModel = None, + feature_extractor: SiglipImageProcessor = None, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + text_encoder_3=text_encoder_3, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + tokenizer_3=tokenizer_3, + transformer=transformer, + scheduler=scheduler, + image_encoder=image_encoder, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.tokenizer_max_length = ( + self.tokenizer.model_max_length if hasattr(self, "tokenizer") and self.tokenizer is not None else 77 + ) + self.default_sample_size = ( + self.transformer.config.sample_size + if hasattr(self, "transformer") and self.transformer is not None + else 128 + ) + self.patch_size = ( + self.transformer.config.patch_size if hasattr(self, "transformer") and self.transformer is not None else 2 + ) + + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_images_per_prompt: int = 1, + max_sequence_length: int = 256, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + batch_size = len(prompt) + + if self.text_encoder_3 is None: + return torch.zeros( + ( + batch_size * num_images_per_prompt, + max_sequence_length, + self.transformer.config.joint_attention_dim, + ), + device=device, + dtype=dtype, + ) + + text_inputs = self.tokenizer_3( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer_3(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer_3.batch_decode(untruncated_ids[:, self.tokenizer_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because `max_sequence_length` is set to " + f" {max_sequence_length} tokens: {removed_text}" + ) + + prompt_embeds = self.text_encoder_3(text_input_ids.to(device))[0] + + dtype = self.text_encoder_3.dtype + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + + _, seq_len, _ = prompt_embeds.shape + + # duplicate text embeddings and attention mask for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + return prompt_embeds + + def _get_clip_prompt_embeds( + self, + prompt: Union[str, List[str]], + num_images_per_prompt: int = 1, + device: Optional[torch.device] = None, + clip_skip: Optional[int] = None, + clip_model_index: int = 0, + ): + device = device or self._execution_device + + clip_tokenizers = [self.tokenizer, self.tokenizer_2] + clip_text_encoders = [self.text_encoder, self.text_encoder_2] + + tokenizer = clip_tokenizers[clip_model_index] + text_encoder = clip_text_encoders[clip_model_index] + + prompt = [prompt] if isinstance(prompt, str) else prompt + batch_size = len(prompt) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = tokenizer.batch_decode(untruncated_ids[:, self.tokenizer_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer_max_length} tokens: {removed_text}" + ) + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + + _, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt) + pooled_prompt_embeds = pooled_prompt_embeds.view(batch_size * num_images_per_prompt, -1) + + return prompt_embeds, pooled_prompt_embeds + + def encode_prompt( + self, + prompt: Union[str, List[str]], + prompt_2: Union[str, List[str]], + prompt_3: Union[str, List[str]], + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + negative_prompt_3: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[torch.FloatTensor] = None, + negative_prompt_embeds: Optional[torch.FloatTensor] = None, + pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + clip_skip: Optional[int] = None, + max_sequence_length: int = 256, + lora_scale: Optional[float] = None, + ): + r""" + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in all text-encoders + prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is + used in all text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in all the text-encoders. + negative_prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and + `text_encoder_3`. If not defined, `negative_prompt` is used in all the text-encoders. + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, SD3LoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder, lora_scale) + if self.text_encoder_2 is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + prompt_3 = prompt_3 or prompt + prompt_3 = [prompt_3] if isinstance(prompt_3, str) else prompt_3 + + prompt_embed, pooled_prompt_embed = self._get_clip_prompt_embeds( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=clip_skip, + clip_model_index=0, + ) + prompt_2_embed, pooled_prompt_2_embed = self._get_clip_prompt_embeds( + prompt=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=clip_skip, + clip_model_index=1, + ) + clip_prompt_embeds = torch.cat([prompt_embed, prompt_2_embed], dim=-1) + + t5_prompt_embed = self._get_t5_prompt_embeds( + prompt=prompt_3, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + ) + + clip_prompt_embeds = torch.nn.functional.pad( + clip_prompt_embeds, (0, t5_prompt_embed.shape[-1] - clip_prompt_embeds.shape[-1]) + ) + + prompt_embeds = torch.cat([clip_prompt_embeds, t5_prompt_embed], dim=-2) + pooled_prompt_embeds = torch.cat([pooled_prompt_embed, pooled_prompt_2_embed], dim=-1) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + negative_prompt_3 = negative_prompt_3 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + negative_prompt_3 = ( + batch_size * [negative_prompt_3] if isinstance(negative_prompt_3, str) else negative_prompt_3 + ) + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embed, negative_pooled_prompt_embed = self._get_clip_prompt_embeds( + negative_prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=None, + clip_model_index=0, + ) + negative_prompt_2_embed, negative_pooled_prompt_2_embed = self._get_clip_prompt_embeds( + negative_prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=None, + clip_model_index=1, + ) + negative_clip_prompt_embeds = torch.cat([negative_prompt_embed, negative_prompt_2_embed], dim=-1) + + t5_negative_prompt_embed = self._get_t5_prompt_embeds( + prompt=negative_prompt_3, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + ) + + negative_clip_prompt_embeds = torch.nn.functional.pad( + negative_clip_prompt_embeds, + (0, t5_negative_prompt_embed.shape[-1] - negative_clip_prompt_embeds.shape[-1]), + ) + + negative_prompt_embeds = torch.cat([negative_clip_prompt_embeds, t5_negative_prompt_embed], dim=-2) + negative_pooled_prompt_embeds = torch.cat( + [negative_pooled_prompt_embed, negative_pooled_prompt_2_embed], dim=-1 + ) + + if self.text_encoder is not None: + if isinstance(self, SD3LoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, SD3LoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + def check_inputs( + self, + prompt, + prompt_2, + prompt_3, + height, + width, + negative_prompt=None, + negative_prompt_2=None, + negative_prompt_3=None, + prompt_embeds=None, + negative_prompt_embeds=None, + pooled_prompt_embeds=None, + negative_pooled_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + max_sequence_length=None, + ): + if ( + height % (self.vae_scale_factor * self.patch_size) != 0 + or width % (self.vae_scale_factor * self.patch_size) != 0 + ): + raise ValueError( + f"`height` and `width` have to be divisible by {self.vae_scale_factor * self.patch_size} but are {height} and {width}." + f"You can use height {height - height % (self.vae_scale_factor * self.patch_size)} and width {width - width % (self.vae_scale_factor * self.patch_size)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_3 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_3`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + elif prompt_3 is not None and (not isinstance(prompt_3, str) and not isinstance(prompt_3, list)): + raise ValueError(f"`prompt_3` has to be of type `str` or `list` but is {type(prompt_3)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_3 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_3`: {negative_prompt_3} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." + ) + + if max_sequence_length is not None and max_sequence_length > 512: + raise ValueError(f"`max_sequence_length` cannot be greater than 512 but is {max_sequence_length}") + + def prepare_latents( + self, + batch_size, + num_channels_latents, + height, + width, + dtype, + device, + generator, + latents=None, + ): + if latents is not None: + return latents.to(device=device, dtype=dtype) + + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + + return latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def skip_guidance_layers(self): + return self._skip_guidance_layers + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def joint_attention_kwargs(self): + return self._joint_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + # Adapted from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.encode_image + def encode_image(self, image: PipelineImageInput, device: torch.device) -> torch.Tensor: + """Encodes the given image into a feature representation using a pre-trained image encoder. + + Args: + image (`PipelineImageInput`): + Input image to be encoded. + device: (`torch.device`): + Torch device. + + Returns: + `torch.Tensor`: The encoded image feature representation. + """ + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=self.dtype) + + return self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + + # Adapted from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[torch.Tensor] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + ) -> torch.Tensor: + """Prepares image embeddings for use in the IP-Adapter. + + Either `ip_adapter_image` or `ip_adapter_image_embeds` must be passed. + + Args: + ip_adapter_image (`PipelineImageInput`, *optional*): + The input image to extract features from for IP-Adapter. + ip_adapter_image_embeds (`torch.Tensor`, *optional*): + Precomputed image embeddings. + device: (`torch.device`, *optional*): + Torch device. + num_images_per_prompt (`int`, defaults to 1): + Number of images that should be generated per prompt. + do_classifier_free_guidance (`bool`, defaults to True): + Whether to use classifier free guidance or not. + """ + device = device or self._execution_device + + if ip_adapter_image_embeds is not None: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = ip_adapter_image_embeds.chunk(2) + else: + single_image_embeds = ip_adapter_image_embeds + elif ip_adapter_image is not None: + single_image_embeds = self.encode_image(ip_adapter_image, device) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.zeros_like(single_image_embeds) + else: + raise ValueError("Neither `ip_adapter_image_embeds` or `ip_adapter_image_embeds` were provided.") + + image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + + if do_classifier_free_guidance: + negative_image_embeds = torch.cat([single_negative_image_embeds] * num_images_per_prompt, dim=0) + image_embeds = torch.cat([negative_image_embeds, image_embeds], dim=0) + + return image_embeds.to(device=device) + + def enable_sequential_cpu_offload(self, *args, **kwargs): + if self.image_encoder is not None and "image_encoder" not in self._exclude_from_cpu_offload: + logger.warning( + "`pipe.enable_sequential_cpu_offload()` might fail for `image_encoder` if it uses " + "`torch.nn.MultiheadAttention`. You can exclude `image_encoder` from CPU offloading by calling " + "`pipe._exclude_from_cpu_offload.append('image_encoder')` before `pipe.enable_sequential_cpu_offload()`." + ) + + super().enable_sequential_cpu_offload(*args, **kwargs) + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + prompt_3: Optional[Union[str, List[str]]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 28, + sigmas: Optional[List[float]] = None, + guidance_scale: float = 7.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + negative_prompt_3: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.FloatTensor] = None, + prompt_embeds: Optional[torch.FloatTensor] = None, + negative_prompt_embeds: Optional[torch.FloatTensor] = None, + pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + joint_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 256, + skip_guidance_layers: List[int] = None, + skip_layer_guidance_scale: float = 2.8, + skip_layer_guidance_stop: float = 0.2, + skip_layer_guidance_start: float = 0.01, + mu: Optional[float] = None, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + will be used instead + prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is + will be used instead + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. This is set to 1024 by default for the best results. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. This is set to 1024 by default for the best results. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 7.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used instead + negative_prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and + `text_encoder_3`. If not defined, `negative_prompt` is used instead + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.FloatTensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + ip_adapter_image (`PipelineImageInput`, *optional*): + Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`torch.Tensor`, *optional*): + Pre-generated image embeddings for IP-Adapter. Should be a tensor of shape `(batch_size, num_images, + emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to + `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] instead of + a plain tuple. + joint_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int` defaults to 256): Maximum sequence length to use with the `prompt`. + skip_guidance_layers (`List[int]`, *optional*): + A list of integers that specify layers to skip during guidance. If not provided, all layers will be + used for guidance. If provided, the guidance will only be applied to the layers specified in the list. + Recommended value by StabiltyAI for Stable Diffusion 3.5 Medium is [7, 8, 9]. + skip_layer_guidance_scale (`int`, *optional*): The scale of the guidance for the layers specified in + `skip_guidance_layers`. The guidance will be applied to the layers specified in `skip_guidance_layers` + with a scale of `skip_layer_guidance_scale`. The guidance will be applied to the rest of the layers + with a scale of `1`. + skip_layer_guidance_stop (`int`, *optional*): The step at which the guidance for the layers specified in + `skip_guidance_layers` will stop. The guidance will be applied to the layers specified in + `skip_guidance_layers` until the fraction specified in `skip_layer_guidance_stop`. Recommended value by + StabiltyAI for Stable Diffusion 3.5 Medium is 0.2. + skip_layer_guidance_start (`int`, *optional*): The step at which the guidance for the layers specified in + `skip_guidance_layers` will start. The guidance will be applied to the layers specified in + `skip_guidance_layers` from the fraction specified in `skip_layer_guidance_start`. Recommended value by + StabiltyAI for Stable Diffusion 3.5 Medium is 0.01. + mu (`float`, *optional*): `mu` value used for `dynamic_shifting`. + + Examples: + + Returns: + [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + + height = height or self.default_sample_size * self.vae_scale_factor + width = width or self.default_sample_size * self.vae_scale_factor + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + prompt_2, + prompt_3, + height, + width, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + negative_prompt_3=negative_prompt_3, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + max_sequence_length=max_sequence_length, + ) + + self._guidance_scale = guidance_scale + self._skip_layer_guidance_scale = skip_layer_guidance_scale + self._clip_skip = clip_skip + self._joint_attention_kwargs = joint_attention_kwargs + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + lora_scale = ( + self.joint_attention_kwargs.get("scale", None) if self.joint_attention_kwargs is not None else None + ) + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + prompt_3=prompt_3, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + negative_prompt_3=negative_prompt_3, + do_classifier_free_guidance=self.do_classifier_free_guidance, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + device=device, + clip_skip=self.clip_skip, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + lora_scale=lora_scale, + ) + + if self.do_classifier_free_guidance: + if skip_guidance_layers is not None: + original_prompt_embeds = prompt_embeds + original_pooled_prompt_embeds = pooled_prompt_embeds + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + pooled_prompt_embeds = torch.cat([negative_pooled_prompt_embeds, pooled_prompt_embeds], dim=0) + + # 4. Prepare latent variables + num_channels_latents = self.transformer.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 5. Prepare timesteps + scheduler_kwargs = {} + if self.scheduler.config.get("use_dynamic_shifting", None) and mu is None: + _, _, height, width = latents.shape + image_seq_len = (height // self.transformer.config.patch_size) * ( + width // self.transformer.config.patch_size + ) + mu = calculate_shift( + image_seq_len, + self.scheduler.config.get("base_image_seq_len", 256), + self.scheduler.config.get("max_image_seq_len", 4096), + self.scheduler.config.get("base_shift", 0.5), + self.scheduler.config.get("max_shift", 1.16), + ) + scheduler_kwargs["mu"] = mu + elif mu is not None: + scheduler_kwargs["mu"] = mu + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, + num_inference_steps, + device, + sigmas=sigmas, + **scheduler_kwargs, + ) + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + self._num_timesteps = len(timesteps) + + # 6. Prepare image embeddings + if (ip_adapter_image is not None and self.is_ip_adapter_active) or ip_adapter_image_embeds is not None: + ip_adapter_image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + if self.joint_attention_kwargs is None: + self._joint_attention_kwargs = {"ip_adapter_image_embeds": ip_adapter_image_embeds} + else: + self._joint_attention_kwargs.update(ip_adapter_image_embeds=ip_adapter_image_embeds) + + # 7. Denoising loop + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + # broadcast to batch dimension in a way that's compatible with ONNX/Core ML + timestep = t.expand(latent_model_input.shape[0]) + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + pooled_projections=pooled_prompt_embeds, + joint_attention_kwargs=self.joint_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + should_skip_layers = ( + True + if i > num_inference_steps * skip_layer_guidance_start + and i < num_inference_steps * skip_layer_guidance_stop + else False + ) + if skip_guidance_layers is not None and should_skip_layers: + timestep = t.expand(latents.shape[0]) + latent_model_input = latents + noise_pred_skip_layers = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=original_prompt_embeds, + pooled_projections=original_pooled_prompt_embeds, + joint_attention_kwargs=self.joint_attention_kwargs, + return_dict=False, + skip_layers=skip_guidance_layers, + )[0] + noise_pred = ( + noise_pred + (noise_pred_text - noise_pred_skip_layers) * self._skip_layer_guidance_scale + ) + + # compute the previous noisy sample x_t -> x_t-1 + latents_dtype = latents.dtype + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if latents.dtype != latents_dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + latents = latents.to(latents_dtype) + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + pooled_prompt_embeds = callback_outputs.pop("pooled_prompt_embeds", pooled_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + if output_type == "latent": + image = latents + + else: + latents = (latents / self.vae.config.scaling_factor) + self.vae.config.shift_factor + + image = self.vae.decode(latents, return_dict=False)[0] + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusion3PipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3_img2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3_img2img.py new file mode 100644 index 0000000000000000000000000000000000000000..9b11bc8781e700402bd76b32ad5430f509d83cb0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3_img2img.py @@ -0,0 +1,1154 @@ +# Copyright 2025 Stability AI and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import PIL.Image +import torch +from transformers import ( + CLIPTextModelWithProjection, + CLIPTokenizer, + SiglipImageProcessor, + SiglipVisionModel, + T5EncoderModel, + T5TokenizerFast, +) + +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, SD3IPAdapterMixin, SD3LoraLoaderMixin +from ...models.autoencoders import AutoencoderKL +from ...models.transformers import SD3Transformer2DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import ( + USE_PEFT_BACKEND, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import StableDiffusion3PipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + + >>> from diffusers import AutoPipelineForImage2Image + >>> from diffusers.utils import load_image + + >>> device = "cuda" + >>> model_id_or_path = "stabilityai/stable-diffusion-3-medium-diffusers" + >>> pipe = AutoPipelineForImage2Image.from_pretrained(model_id_or_path, torch_dtype=torch.float16) + >>> pipe = pipe.to(device) + + >>> url = "https://raw.githubusercontent.com/CompVis/stable-diffusion/main/assets/stable-samples/img2img/sketch-mountains-input.jpg" + >>> init_image = load_image(url).resize((1024, 1024)) + + >>> prompt = "cat wizard, gandalf, lord of the rings, detailed, fantasy, cute, adorable, Pixar, Disney, 8k" + + >>> images = pipe(prompt=prompt, image=init_image, strength=0.95, guidance_scale=7.5).images[0] + ``` +""" + + +# Copied from diffusers.pipelines.flux.pipeline_flux.calculate_shift +def calculate_shift( + image_seq_len, + base_seq_len: int = 256, + max_seq_len: int = 4096, + base_shift: float = 0.5, + max_shift: float = 1.15, +): + m = (max_shift - base_shift) / (max_seq_len - base_seq_len) + b = base_shift - m * base_seq_len + mu = image_seq_len * m + b + return mu + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusion3Img2ImgPipeline(DiffusionPipeline, SD3LoraLoaderMixin, FromSingleFileMixin, SD3IPAdapterMixin): + r""" + Args: + transformer ([`SD3Transformer2DModel`]): + Conditional Transformer (MMDiT) architecture to denoise the encoded image latents. + scheduler ([`FlowMatchEulerDiscreteScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModelWithProjection`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant, + with an additional added projection layer that is initialized with a diagonal matrix with the `hidden_size` + as its dimension. + text_encoder_2 ([`CLIPTextModelWithProjection`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + text_encoder_3 ([`T5EncoderModel`]): + Frozen text-encoder. Stable Diffusion 3 uses + [T5](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5EncoderModel), specifically the + [t5-v1_1-xxl](https://huggingface.co/google/t5-v1_1-xxl) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_3 (`T5TokenizerFast`): + Tokenizer of class + [T5Tokenizer](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5Tokenizer). + image_encoder (`SiglipVisionModel`, *optional*): + Pre-trained Vision Model for IP Adapter. + feature_extractor (`SiglipImageProcessor`, *optional*): + Image processor for IP Adapter. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->text_encoder_3->image_encoder->transformer->vae" + _optional_components = ["image_encoder", "feature_extractor"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds", "negative_pooled_prompt_embeds"] + + def __init__( + self, + transformer: SD3Transformer2DModel, + scheduler: FlowMatchEulerDiscreteScheduler, + vae: AutoencoderKL, + text_encoder: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer_2: CLIPTokenizer, + text_encoder_3: T5EncoderModel, + tokenizer_3: T5TokenizerFast, + image_encoder: Optional[SiglipVisionModel] = None, + feature_extractor: Optional[SiglipImageProcessor] = None, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + text_encoder_3=text_encoder_3, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + tokenizer_3=tokenizer_3, + transformer=transformer, + scheduler=scheduler, + image_encoder=image_encoder, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + latent_channels = self.vae.config.latent_channels if getattr(self, "vae", None) else 16 + self.image_processor = VaeImageProcessor( + vae_scale_factor=self.vae_scale_factor, vae_latent_channels=latent_channels + ) + self.tokenizer_max_length = ( + self.tokenizer.model_max_length if hasattr(self, "tokenizer") and self.tokenizer is not None else 77 + ) + self.default_sample_size = ( + self.transformer.config.sample_size + if hasattr(self, "transformer") and self.transformer is not None + else 128 + ) + self.patch_size = ( + self.transformer.config.patch_size if hasattr(self, "transformer") and self.transformer is not None else 2 + ) + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_images_per_prompt: int = 1, + max_sequence_length: int = 256, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + batch_size = len(prompt) + + if self.text_encoder_3 is None: + return torch.zeros( + ( + batch_size * num_images_per_prompt, + max_sequence_length, + self.transformer.config.joint_attention_dim, + ), + device=device, + dtype=dtype, + ) + + text_inputs = self.tokenizer_3( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer_3(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer_3.batch_decode(untruncated_ids[:, self.tokenizer_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because `max_sequence_length` is set to " + f" {max_sequence_length} tokens: {removed_text}" + ) + + prompt_embeds = self.text_encoder_3(text_input_ids.to(device))[0] + + dtype = self.text_encoder_3.dtype + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + + _, seq_len, _ = prompt_embeds.shape + + # duplicate text embeddings and attention mask for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline._get_clip_prompt_embeds + def _get_clip_prompt_embeds( + self, + prompt: Union[str, List[str]], + num_images_per_prompt: int = 1, + device: Optional[torch.device] = None, + clip_skip: Optional[int] = None, + clip_model_index: int = 0, + ): + device = device or self._execution_device + + clip_tokenizers = [self.tokenizer, self.tokenizer_2] + clip_text_encoders = [self.text_encoder, self.text_encoder_2] + + tokenizer = clip_tokenizers[clip_model_index] + text_encoder = clip_text_encoders[clip_model_index] + + prompt = [prompt] if isinstance(prompt, str) else prompt + batch_size = len(prompt) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = tokenizer.batch_decode(untruncated_ids[:, self.tokenizer_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer_max_length} tokens: {removed_text}" + ) + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + + _, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt) + pooled_prompt_embeds = pooled_prompt_embeds.view(batch_size * num_images_per_prompt, -1) + + return prompt_embeds, pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + prompt_2: Union[str, List[str]], + prompt_3: Union[str, List[str]], + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + negative_prompt_3: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[torch.FloatTensor] = None, + negative_prompt_embeds: Optional[torch.FloatTensor] = None, + pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + clip_skip: Optional[int] = None, + max_sequence_length: int = 256, + lora_scale: Optional[float] = None, + ): + r""" + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in all text-encoders + prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is + used in all text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in all the text-encoders. + negative_prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and + `text_encoder_3`. If not defined, `negative_prompt` is used in all the text-encoders. + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, SD3LoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder, lora_scale) + if self.text_encoder_2 is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + prompt_3 = prompt_3 or prompt + prompt_3 = [prompt_3] if isinstance(prompt_3, str) else prompt_3 + + prompt_embed, pooled_prompt_embed = self._get_clip_prompt_embeds( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=clip_skip, + clip_model_index=0, + ) + prompt_2_embed, pooled_prompt_2_embed = self._get_clip_prompt_embeds( + prompt=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=clip_skip, + clip_model_index=1, + ) + clip_prompt_embeds = torch.cat([prompt_embed, prompt_2_embed], dim=-1) + + t5_prompt_embed = self._get_t5_prompt_embeds( + prompt=prompt_3, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + ) + + clip_prompt_embeds = torch.nn.functional.pad( + clip_prompt_embeds, (0, t5_prompt_embed.shape[-1] - clip_prompt_embeds.shape[-1]) + ) + + prompt_embeds = torch.cat([clip_prompt_embeds, t5_prompt_embed], dim=-2) + pooled_prompt_embeds = torch.cat([pooled_prompt_embed, pooled_prompt_2_embed], dim=-1) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + negative_prompt_3 = negative_prompt_3 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + negative_prompt_3 = ( + batch_size * [negative_prompt_3] if isinstance(negative_prompt_3, str) else negative_prompt_3 + ) + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embed, negative_pooled_prompt_embed = self._get_clip_prompt_embeds( + negative_prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=None, + clip_model_index=0, + ) + negative_prompt_2_embed, negative_pooled_prompt_2_embed = self._get_clip_prompt_embeds( + negative_prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=None, + clip_model_index=1, + ) + negative_clip_prompt_embeds = torch.cat([negative_prompt_embed, negative_prompt_2_embed], dim=-1) + + t5_negative_prompt_embed = self._get_t5_prompt_embeds( + prompt=negative_prompt_3, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + ) + + negative_clip_prompt_embeds = torch.nn.functional.pad( + negative_clip_prompt_embeds, + (0, t5_negative_prompt_embed.shape[-1] - negative_clip_prompt_embeds.shape[-1]), + ) + + negative_prompt_embeds = torch.cat([negative_clip_prompt_embeds, t5_negative_prompt_embed], dim=-2) + negative_pooled_prompt_embeds = torch.cat( + [negative_pooled_prompt_embed, negative_pooled_prompt_2_embed], dim=-1 + ) + + if self.text_encoder is not None: + if isinstance(self, SD3LoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, SD3LoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + def check_inputs( + self, + prompt, + prompt_2, + prompt_3, + height, + width, + strength, + negative_prompt=None, + negative_prompt_2=None, + negative_prompt_3=None, + prompt_embeds=None, + negative_prompt_embeds=None, + pooled_prompt_embeds=None, + negative_pooled_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + max_sequence_length=None, + ): + if ( + height % (self.vae_scale_factor * self.patch_size) != 0 + or width % (self.vae_scale_factor * self.patch_size) != 0 + ): + raise ValueError( + f"`height` and `width` have to be divisible by {self.vae_scale_factor * self.patch_size} but are {height} and {width}." + f"You can use height {height - height % (self.vae_scale_factor * self.patch_size)} and width {width - width % (self.vae_scale_factor * self.patch_size)}." + ) + + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_3 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_3`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + elif prompt_3 is not None and (not isinstance(prompt_3, str) and not isinstance(prompt_3, list)): + raise ValueError(f"`prompt_3` has to be of type `str` or `list` but is {type(prompt_3)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_3 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_3`: {negative_prompt_3} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." + ) + + if max_sequence_length is not None and max_sequence_length > 512: + raise ValueError(f"`max_sequence_length` cannot be greater than 512 but is {max_sequence_length}") + + def get_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(num_inference_steps * strength, num_inference_steps) + + t_start = int(max(num_inference_steps - init_timestep, 0)) + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + def prepare_latents(self, image, timestep, batch_size, num_images_per_prompt, dtype, device, generator=None): + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + image = image.to(device=device, dtype=dtype) + + batch_size = batch_size * num_images_per_prompt + if image.shape[1] == self.vae.config.latent_channels: + init_latents = image + + else: + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + elif isinstance(generator, list): + init_latents = [ + retrieve_latents(self.vae.encode(image[i : i + 1]), generator=generator[i]) + for i in range(batch_size) + ] + init_latents = torch.cat(init_latents, dim=0) + else: + init_latents = retrieve_latents(self.vae.encode(image), generator=generator) + + init_latents = (init_latents - self.vae.config.shift_factor) * self.vae.config.scaling_factor + + if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] == 0: + # expand init_latents for batch_size + additional_image_per_prompt = batch_size // init_latents.shape[0] + init_latents = torch.cat([init_latents] * additional_image_per_prompt, dim=0) + elif batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {batch_size} text prompts." + ) + else: + init_latents = torch.cat([init_latents], dim=0) + + shape = init_latents.shape + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + + # get latents + init_latents = self.scheduler.scale_noise(init_latents, timestep, noise) + latents = init_latents.to(device=device, dtype=dtype) + + return latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def joint_attention_kwargs(self): + return self._joint_attention_kwargs + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline.encode_image + def encode_image(self, image: PipelineImageInput, device: torch.device) -> torch.Tensor: + """Encodes the given image into a feature representation using a pre-trained image encoder. + + Args: + image (`PipelineImageInput`): + Input image to be encoded. + device: (`torch.device`): + Torch device. + + Returns: + `torch.Tensor`: The encoded image feature representation. + """ + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=self.dtype) + + return self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[torch.Tensor] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + ) -> torch.Tensor: + """Prepares image embeddings for use in the IP-Adapter. + + Either `ip_adapter_image` or `ip_adapter_image_embeds` must be passed. + + Args: + ip_adapter_image (`PipelineImageInput`, *optional*): + The input image to extract features from for IP-Adapter. + ip_adapter_image_embeds (`torch.Tensor`, *optional*): + Precomputed image embeddings. + device: (`torch.device`, *optional*): + Torch device. + num_images_per_prompt (`int`, defaults to 1): + Number of images that should be generated per prompt. + do_classifier_free_guidance (`bool`, defaults to True): + Whether to use classifier free guidance or not. + """ + device = device or self._execution_device + + if ip_adapter_image_embeds is not None: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = ip_adapter_image_embeds.chunk(2) + else: + single_image_embeds = ip_adapter_image_embeds + elif ip_adapter_image is not None: + single_image_embeds = self.encode_image(ip_adapter_image, device) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.zeros_like(single_image_embeds) + else: + raise ValueError("Neither `ip_adapter_image_embeds` or `ip_adapter_image_embeds` were provided.") + + image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + + if do_classifier_free_guidance: + negative_image_embeds = torch.cat([single_negative_image_embeds] * num_images_per_prompt, dim=0) + image_embeds = torch.cat([negative_image_embeds, image_embeds], dim=0) + + return image_embeds.to(device=device) + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline.enable_sequential_cpu_offload + def enable_sequential_cpu_offload(self, *args, **kwargs): + if self.image_encoder is not None and "image_encoder" not in self._exclude_from_cpu_offload: + logger.warning( + "`pipe.enable_sequential_cpu_offload()` might fail for `image_encoder` if it uses " + "`torch.nn.MultiheadAttention`. You can exclude `image_encoder` from CPU offloading by calling " + "`pipe._exclude_from_cpu_offload.append('image_encoder')` before `pipe.enable_sequential_cpu_offload()`." + ) + + super().enable_sequential_cpu_offload(*args, **kwargs) + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + prompt_3: Optional[Union[str, List[str]]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + image: PipelineImageInput = None, + strength: float = 0.6, + num_inference_steps: int = 50, + sigmas: Optional[List[float]] = None, + guidance_scale: float = 7.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + negative_prompt_3: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.FloatTensor] = None, + prompt_embeds: Optional[torch.FloatTensor] = None, + negative_prompt_embeds: Optional[torch.FloatTensor] = None, + pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + output_type: Optional[str] = "pil", + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[torch.Tensor] = None, + return_dict: bool = True, + joint_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 256, + mu: Optional[float] = None, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + will be used instead + prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is + will be used instead + height (`int`, *optional*, defaults to self.transformer.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. This is set to 1024 by default for the best results. + width (`int`, *optional*, defaults to self.transformer.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. This is set to 1024 by default for the best results. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 7.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used instead + negative_prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and + `text_encoder_3`. If not defined, `negative_prompt` is used instead + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.FloatTensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + ip_adapter_image (`PipelineImageInput`, *optional*): + Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`torch.Tensor`, *optional*): + Pre-generated image embeddings for IP-Adapter. Should be a tensor of shape `(batch_size, num_images, + emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to + `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] instead of + a plain tuple. + joint_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int` defaults to 256): Maximum sequence length to use with the `prompt`. + mu (`float`, *optional*): `mu` value used for `dynamic_shifting`. + + Examples: + + Returns: + [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + height = height or self.default_sample_size * self.vae_scale_factor + width = width or self.default_sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + prompt_2, + prompt_3, + height, + width, + strength, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + negative_prompt_3=negative_prompt_3, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + max_sequence_length=max_sequence_length, + ) + + self._guidance_scale = guidance_scale + self._clip_skip = clip_skip + self._joint_attention_kwargs = joint_attention_kwargs + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + lora_scale = ( + self.joint_attention_kwargs.get("scale", None) if self.joint_attention_kwargs is not None else None + ) + + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + prompt_3=prompt_3, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + negative_prompt_3=negative_prompt_3, + do_classifier_free_guidance=self.do_classifier_free_guidance, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + device=device, + clip_skip=self.clip_skip, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + lora_scale=lora_scale, + ) + + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + pooled_prompt_embeds = torch.cat([negative_pooled_prompt_embeds, pooled_prompt_embeds], dim=0) + + # 3. Preprocess image + image = self.image_processor.preprocess(image, height=height, width=width) + + # 4. Prepare timesteps + scheduler_kwargs = {} + if self.scheduler.config.get("use_dynamic_shifting", None) and mu is None: + image_seq_len = (int(height) // self.vae_scale_factor // self.transformer.config.patch_size) * ( + int(width) // self.vae_scale_factor // self.transformer.config.patch_size + ) + mu = calculate_shift( + image_seq_len, + self.scheduler.config.get("base_image_seq_len", 256), + self.scheduler.config.get("max_image_seq_len", 4096), + self.scheduler.config.get("base_shift", 0.5), + self.scheduler.config.get("max_shift", 1.16), + ) + scheduler_kwargs["mu"] = mu + elif mu is not None: + scheduler_kwargs["mu"] = mu + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, sigmas=sigmas, **scheduler_kwargs + ) + timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, strength, device) + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + + # 5. Prepare latent variables + if latents is None: + latents = self.prepare_latents( + image, + latent_timestep, + batch_size, + num_images_per_prompt, + prompt_embeds.dtype, + device, + generator, + ) + + # 6. Prepare image embeddings + if (ip_adapter_image is not None and self.is_ip_adapter_active) or ip_adapter_image_embeds is not None: + ip_adapter_image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + if self.joint_attention_kwargs is None: + self._joint_attention_kwargs = {"ip_adapter_image_embeds": ip_adapter_image_embeds} + else: + self._joint_attention_kwargs.update(ip_adapter_image_embeds=ip_adapter_image_embeds) + + # 7. Denoising loop + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + # broadcast to batch dimension in a way that's compatible with ONNX/Core ML + timestep = t.expand(latent_model_input.shape[0]) + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + pooled_projections=pooled_prompt_embeds, + joint_attention_kwargs=self.joint_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents_dtype = latents.dtype + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if latents.dtype != latents_dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + latents = latents.to(latents_dtype) + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + negative_pooled_prompt_embeds = callback_outputs.pop( + "negative_pooled_prompt_embeds", negative_pooled_prompt_embeds + ) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + if output_type == "latent": + image = latents + + else: + latents = (latents / self.vae.config.scaling_factor) + self.vae.config.shift_factor + + image = self.vae.decode(latents, return_dict=False)[0] + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusion3PipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3_inpaint.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3_inpaint.py new file mode 100644 index 0000000000000000000000000000000000000000..b947cbff0914323272d1328a306d96206d71cae9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3_inpaint.py @@ -0,0 +1,1379 @@ +# Copyright 2025 Stability AI and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import torch +from transformers import ( + CLIPTextModelWithProjection, + CLIPTokenizer, + SiglipImageProcessor, + SiglipVisionModel, + T5EncoderModel, + T5TokenizerFast, +) + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, SD3IPAdapterMixin, SD3LoraLoaderMixin +from ...models.autoencoders import AutoencoderKL +from ...models.transformers import SD3Transformer2DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import ( + USE_PEFT_BACKEND, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import StableDiffusion3PipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusion3InpaintPipeline + >>> from diffusers.utils import load_image + + >>> pipe = StableDiffusion3InpaintPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-3-medium-diffusers", torch_dtype=torch.float16 + ... ) + >>> pipe.to("cuda") + >>> prompt = "Face of a yellow cat, high resolution, sitting on a park bench" + >>> img_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo.png" + >>> mask_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo_mask.png" + >>> source = load_image(img_url) + >>> mask = load_image(mask_url) + >>> image = pipe(prompt=prompt, image=source, mask_image=mask).images[0] + >>> image.save("sd3_inpainting.png") + ``` +""" + + +# Copied from diffusers.pipelines.flux.pipeline_flux.calculate_shift +def calculate_shift( + image_seq_len, + base_seq_len: int = 256, + max_seq_len: int = 4096, + base_shift: float = 0.5, + max_shift: float = 1.15, +): + m = (max_shift - base_shift) / (max_seq_len - base_seq_len) + b = base_shift - m * base_seq_len + mu = image_seq_len * m + b + return mu + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusion3InpaintPipeline(DiffusionPipeline, SD3LoraLoaderMixin, FromSingleFileMixin, SD3IPAdapterMixin): + r""" + Args: + transformer ([`SD3Transformer2DModel`]): + Conditional Transformer (MMDiT) architecture to denoise the encoded image latents. + scheduler ([`FlowMatchEulerDiscreteScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModelWithProjection`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant, + with an additional added projection layer that is initialized with a diagonal matrix with the `hidden_size` + as its dimension. + text_encoder_2 ([`CLIPTextModelWithProjection`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + text_encoder_3 ([`T5EncoderModel`]): + Frozen text-encoder. Stable Diffusion 3 uses + [T5](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5EncoderModel), specifically the + [t5-v1_1-xxl](https://huggingface.co/google/t5-v1_1-xxl) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_3 (`T5TokenizerFast`): + Tokenizer of class + [T5Tokenizer](https://huggingface.co/docs/transformers/model_doc/t5#transformers.T5Tokenizer). + image_encoder (`SiglipVisionModel`, *optional*): + Pre-trained Vision Model for IP Adapter. + feature_extractor (`SiglipImageProcessor`, *optional*): + Image processor for IP Adapter. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->text_encoder_3->image_encoder->transformer->vae" + _optional_components = ["image_encoder", "feature_extractor"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds", "negative_pooled_prompt_embeds"] + + def __init__( + self, + transformer: SD3Transformer2DModel, + scheduler: FlowMatchEulerDiscreteScheduler, + vae: AutoencoderKL, + text_encoder: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer_2: CLIPTokenizer, + text_encoder_3: T5EncoderModel, + tokenizer_3: T5TokenizerFast, + image_encoder: Optional[SiglipVisionModel] = None, + feature_extractor: Optional[SiglipImageProcessor] = None, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + text_encoder_3=text_encoder_3, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + tokenizer_3=tokenizer_3, + transformer=transformer, + scheduler=scheduler, + image_encoder=image_encoder, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + latent_channels = self.vae.config.latent_channels if getattr(self, "vae", None) else 16 + self.image_processor = VaeImageProcessor( + vae_scale_factor=self.vae_scale_factor, vae_latent_channels=latent_channels + ) + self.mask_processor = VaeImageProcessor( + vae_scale_factor=self.vae_scale_factor, + vae_latent_channels=latent_channels, + do_normalize=False, + do_binarize=True, + do_convert_grayscale=True, + ) + self.tokenizer_max_length = ( + self.tokenizer.model_max_length if hasattr(self, "tokenizer") and self.tokenizer is not None else 77 + ) + self.default_sample_size = ( + self.transformer.config.sample_size + if hasattr(self, "transformer") and self.transformer is not None + else 128 + ) + self.patch_size = ( + self.transformer.config.patch_size if hasattr(self, "transformer") and self.transformer is not None else 2 + ) + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_images_per_prompt: int = 1, + max_sequence_length: int = 256, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + batch_size = len(prompt) + + if self.text_encoder_3 is None: + return torch.zeros( + ( + batch_size * num_images_per_prompt, + max_sequence_length, + self.transformer.config.joint_attention_dim, + ), + device=device, + dtype=dtype, + ) + + text_inputs = self.tokenizer_3( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer_3(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer_3.batch_decode(untruncated_ids[:, self.tokenizer_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because `max_sequence_length` is set to " + f" {max_sequence_length} tokens: {removed_text}" + ) + + prompt_embeds = self.text_encoder_3(text_input_ids.to(device))[0] + + dtype = self.text_encoder_3.dtype + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + + _, seq_len, _ = prompt_embeds.shape + + # duplicate text embeddings and attention mask for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline._get_clip_prompt_embeds + def _get_clip_prompt_embeds( + self, + prompt: Union[str, List[str]], + num_images_per_prompt: int = 1, + device: Optional[torch.device] = None, + clip_skip: Optional[int] = None, + clip_model_index: int = 0, + ): + device = device or self._execution_device + + clip_tokenizers = [self.tokenizer, self.tokenizer_2] + clip_text_encoders = [self.text_encoder, self.text_encoder_2] + + tokenizer = clip_tokenizers[clip_model_index] + text_encoder = clip_text_encoders[clip_model_index] + + prompt = [prompt] if isinstance(prompt, str) else prompt + batch_size = len(prompt) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = tokenizer.batch_decode(untruncated_ids[:, self.tokenizer_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer_max_length} tokens: {removed_text}" + ) + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + + _, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt) + pooled_prompt_embeds = pooled_prompt_embeds.view(batch_size * num_images_per_prompt, -1) + + return prompt_embeds, pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + prompt_2: Union[str, List[str]], + prompt_3: Union[str, List[str]], + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + negative_prompt_3: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[torch.FloatTensor] = None, + negative_prompt_embeds: Optional[torch.FloatTensor] = None, + pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + negative_pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + clip_skip: Optional[int] = None, + max_sequence_length: int = 256, + lora_scale: Optional[float] = None, + ): + r""" + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in all text-encoders + prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is + used in all text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in all the text-encoders. + negative_prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and + `text_encoder_3`. If not defined, `negative_prompt` is used in all the text-encoders. + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, SD3LoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder, lora_scale) + if self.text_encoder_2 is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + prompt_3 = prompt_3 or prompt + prompt_3 = [prompt_3] if isinstance(prompt_3, str) else prompt_3 + + prompt_embed, pooled_prompt_embed = self._get_clip_prompt_embeds( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=clip_skip, + clip_model_index=0, + ) + prompt_2_embed, pooled_prompt_2_embed = self._get_clip_prompt_embeds( + prompt=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=clip_skip, + clip_model_index=1, + ) + clip_prompt_embeds = torch.cat([prompt_embed, prompt_2_embed], dim=-1) + + t5_prompt_embed = self._get_t5_prompt_embeds( + prompt=prompt_3, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + ) + + clip_prompt_embeds = torch.nn.functional.pad( + clip_prompt_embeds, (0, t5_prompt_embed.shape[-1] - clip_prompt_embeds.shape[-1]) + ) + + prompt_embeds = torch.cat([clip_prompt_embeds, t5_prompt_embed], dim=-2) + pooled_prompt_embeds = torch.cat([pooled_prompt_embed, pooled_prompt_2_embed], dim=-1) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + negative_prompt_3 = negative_prompt_3 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + negative_prompt_3 = ( + batch_size * [negative_prompt_3] if isinstance(negative_prompt_3, str) else negative_prompt_3 + ) + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embed, negative_pooled_prompt_embed = self._get_clip_prompt_embeds( + negative_prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=None, + clip_model_index=0, + ) + negative_prompt_2_embed, negative_pooled_prompt_2_embed = self._get_clip_prompt_embeds( + negative_prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + clip_skip=None, + clip_model_index=1, + ) + negative_clip_prompt_embeds = torch.cat([negative_prompt_embed, negative_prompt_2_embed], dim=-1) + + t5_negative_prompt_embed = self._get_t5_prompt_embeds( + prompt=negative_prompt_3, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + ) + + negative_clip_prompt_embeds = torch.nn.functional.pad( + negative_clip_prompt_embeds, + (0, t5_negative_prompt_embed.shape[-1] - negative_clip_prompt_embeds.shape[-1]), + ) + + negative_prompt_embeds = torch.cat([negative_clip_prompt_embeds, t5_negative_prompt_embed], dim=-2) + negative_pooled_prompt_embeds = torch.cat( + [negative_pooled_prompt_embed, negative_pooled_prompt_2_embed], dim=-1 + ) + + if self.text_encoder is not None: + if isinstance(self, SD3LoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, SD3LoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3_img2img.StableDiffusion3Img2ImgPipeline.check_inputs + def check_inputs( + self, + prompt, + prompt_2, + prompt_3, + height, + width, + strength, + negative_prompt=None, + negative_prompt_2=None, + negative_prompt_3=None, + prompt_embeds=None, + negative_prompt_embeds=None, + pooled_prompt_embeds=None, + negative_pooled_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + max_sequence_length=None, + ): + if ( + height % (self.vae_scale_factor * self.patch_size) != 0 + or width % (self.vae_scale_factor * self.patch_size) != 0 + ): + raise ValueError( + f"`height` and `width` have to be divisible by {self.vae_scale_factor * self.patch_size} but are {height} and {width}." + f"You can use height {height - height % (self.vae_scale_factor * self.patch_size)} and width {width - width % (self.vae_scale_factor * self.patch_size)}." + ) + + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_3 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_3`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + elif prompt_3 is not None and (not isinstance(prompt_3, str) and not isinstance(prompt_3, list)): + raise ValueError(f"`prompt_3` has to be of type `str` or `list` but is {type(prompt_3)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_3 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_3`: {negative_prompt_3} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." + ) + + if max_sequence_length is not None and max_sequence_length > 512: + raise ValueError(f"`max_sequence_length` cannot be greater than 512 but is {max_sequence_length}") + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3_img2img.StableDiffusion3Img2ImgPipeline.get_timesteps + def get_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(num_inference_steps * strength, num_inference_steps) + + t_start = int(max(num_inference_steps - init_timestep, 0)) + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + def prepare_latents( + self, + batch_size, + num_channels_latents, + height, + width, + dtype, + device, + generator, + latents=None, + image=None, + timestep=None, + is_strength_max=True, + return_noise=False, + return_image_latents=False, + ): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if (image is None or timestep is None) and not is_strength_max: + raise ValueError( + "Since strength < 1. initial latents are to be initialised as a combination of Image + Noise." + "However, either the image or the noise timestep has not been provided." + ) + + if return_image_latents or (latents is None and not is_strength_max): + image = image.to(device=device, dtype=dtype) + + if image.shape[1] == 16: + image_latents = image + else: + image_latents = self._encode_vae_image(image=image, generator=generator) + image_latents = image_latents.repeat(batch_size // image_latents.shape[0], 1, 1, 1) + + if latents is None: + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + # if strength is 1. then initialise the latents to noise, else initial to image + noise + latents = noise if is_strength_max else self.scheduler.scale_noise(image_latents, timestep, noise) + else: + noise = latents.to(device) + latents = noise + + outputs = (latents,) + + if return_noise: + outputs += (noise,) + + if return_image_latents: + outputs += (image_latents,) + + return outputs + + def _encode_vae_image(self, image: torch.Tensor, generator: torch.Generator): + if isinstance(generator, list): + image_latents = [ + retrieve_latents(self.vae.encode(image[i : i + 1]), generator=generator[i]) + for i in range(image.shape[0]) + ] + image_latents = torch.cat(image_latents, dim=0) + else: + image_latents = retrieve_latents(self.vae.encode(image), generator=generator) + + image_latents = (image_latents - self.vae.config.shift_factor) * self.vae.config.scaling_factor + + return image_latents + + def prepare_mask_latents( + self, + mask, + masked_image, + batch_size, + num_images_per_prompt, + height, + width, + dtype, + device, + generator, + do_classifier_free_guidance, + ): + # resize the mask to latents shape as we concatenate the mask to the latents + # we do that before converting to dtype to avoid breaking in case we're using cpu_offload + # and half precision + mask = torch.nn.functional.interpolate( + mask, size=(height // self.vae_scale_factor, width // self.vae_scale_factor) + ) + mask = mask.to(device=device, dtype=dtype) + + batch_size = batch_size * num_images_per_prompt + + masked_image = masked_image.to(device=device, dtype=dtype) + + if masked_image.shape[1] == 16: + masked_image_latents = masked_image + else: + masked_image_latents = retrieve_latents(self.vae.encode(masked_image), generator=generator) + + masked_image_latents = (masked_image_latents - self.vae.config.shift_factor) * self.vae.config.scaling_factor + + # duplicate mask and masked_image_latents for each generation per prompt, using mps friendly method + if mask.shape[0] < batch_size: + if not batch_size % mask.shape[0] == 0: + raise ValueError( + "The passed mask and the required batch size don't match. Masks are supposed to be duplicated to" + f" a total batch size of {batch_size}, but {mask.shape[0]} masks were passed. Make sure the number" + " of masks that you pass is divisible by the total requested batch size." + ) + mask = mask.repeat(batch_size // mask.shape[0], 1, 1, 1) + if masked_image_latents.shape[0] < batch_size: + if not batch_size % masked_image_latents.shape[0] == 0: + raise ValueError( + "The passed images and the required batch size don't match. Images are supposed to be duplicated" + f" to a total batch size of {batch_size}, but {masked_image_latents.shape[0]} images were passed." + " Make sure the number of images that you pass is divisible by the total requested batch size." + ) + masked_image_latents = masked_image_latents.repeat(batch_size // masked_image_latents.shape[0], 1, 1, 1) + + mask = torch.cat([mask] * 2) if do_classifier_free_guidance else mask + masked_image_latents = ( + torch.cat([masked_image_latents] * 2) if do_classifier_free_guidance else masked_image_latents + ) + + # aligning device to prevent device errors when concating it with the latent model input + masked_image_latents = masked_image_latents.to(device=device, dtype=dtype) + return mask, masked_image_latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def joint_attention_kwargs(self): + return self._joint_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline.encode_image + def encode_image(self, image: PipelineImageInput, device: torch.device) -> torch.Tensor: + """Encodes the given image into a feature representation using a pre-trained image encoder. + + Args: + image (`PipelineImageInput`): + Input image to be encoded. + device: (`torch.device`): + Torch device. + + Returns: + `torch.Tensor`: The encoded image feature representation. + """ + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=self.dtype) + + return self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[torch.Tensor] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + ) -> torch.Tensor: + """Prepares image embeddings for use in the IP-Adapter. + + Either `ip_adapter_image` or `ip_adapter_image_embeds` must be passed. + + Args: + ip_adapter_image (`PipelineImageInput`, *optional*): + The input image to extract features from for IP-Adapter. + ip_adapter_image_embeds (`torch.Tensor`, *optional*): + Precomputed image embeddings. + device: (`torch.device`, *optional*): + Torch device. + num_images_per_prompt (`int`, defaults to 1): + Number of images that should be generated per prompt. + do_classifier_free_guidance (`bool`, defaults to True): + Whether to use classifier free guidance or not. + """ + device = device or self._execution_device + + if ip_adapter_image_embeds is not None: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = ip_adapter_image_embeds.chunk(2) + else: + single_image_embeds = ip_adapter_image_embeds + elif ip_adapter_image is not None: + single_image_embeds = self.encode_image(ip_adapter_image, device) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.zeros_like(single_image_embeds) + else: + raise ValueError("Neither `ip_adapter_image_embeds` or `ip_adapter_image_embeds` were provided.") + + image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + + if do_classifier_free_guidance: + negative_image_embeds = torch.cat([single_negative_image_embeds] * num_images_per_prompt, dim=0) + image_embeds = torch.cat([negative_image_embeds, image_embeds], dim=0) + + return image_embeds.to(device=device) + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3.StableDiffusion3Pipeline.enable_sequential_cpu_offload + def enable_sequential_cpu_offload(self, *args, **kwargs): + if self.image_encoder is not None and "image_encoder" not in self._exclude_from_cpu_offload: + logger.warning( + "`pipe.enable_sequential_cpu_offload()` might fail for `image_encoder` if it uses " + "`torch.nn.MultiheadAttention`. You can exclude `image_encoder` from CPU offloading by calling " + "`pipe._exclude_from_cpu_offload.append('image_encoder')` before `pipe.enable_sequential_cpu_offload()`." + ) + + super().enable_sequential_cpu_offload(*args, **kwargs) + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + prompt_3: Optional[Union[str, List[str]]] = None, + image: PipelineImageInput = None, + mask_image: PipelineImageInput = None, + masked_image_latents: PipelineImageInput = None, + height: int = None, + width: int = None, + padding_mask_crop: Optional[int] = None, + strength: float = 0.6, + num_inference_steps: int = 50, + sigmas: Optional[List[float]] = None, + guidance_scale: float = 7.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + negative_prompt_3: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + joint_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 256, + mu: Optional[float] = None, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + will be used instead + prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to `tokenizer_3` and `text_encoder_3`. If not defined, `prompt` is + will be used instead + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image`, numpy array or tensor representing an image batch to be used as the starting point. For both + numpy array and pytorch tensor, the expected value range is between `[0, 1]` If it's a tensor or a list + or tensors, the expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a numpy array or a + list of arrays, the expected shape should be `(B, H, W, C)` or `(H, W, C)` It can also accept image + latents as `image`, but if passing latents directly it is not encoded again. + mask_image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image`, numpy array or tensor representing an image batch to mask `image`. White pixels in the mask + are repainted while black pixels are preserved. If `mask_image` is a PIL image, it is converted to a + single channel (luminance) before use. If it's a numpy array or pytorch tensor, it should contain one + color channel (L) instead of 3, so the expected shape for pytorch tensor would be `(B, 1, H, W)`, `(B, + H, W)`, `(1, H, W)`, `(H, W)`. And for numpy array would be for `(B, H, W, 1)`, `(B, H, W)`, `(H, W, + 1)`, or `(H, W)`. + mask_image_latent (`torch.Tensor`, `List[torch.Tensor]`): + `Tensor` representing an image batch to mask `image` generated by VAE. If not provided, the mask + latents tensor will be generated by `mask_image`. + height (`int`, *optional*, defaults to self.transformer.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. This is set to 1024 by default for the best results. + width (`int`, *optional*, defaults to self.transformer.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. This is set to 1024 by default for the best results. + padding_mask_crop (`int`, *optional*, defaults to `None`): + The size of margin in the crop to be applied to the image and masking. If `None`, no crop is applied to + image and mask_image. If `padding_mask_crop` is not `None`, it will first find a rectangular region + with the same aspect ration of the image and contains all masked area, and then expand that area based + on `padding_mask_crop`. The image and mask_image will then be cropped based on the expanded area before + resizing to the original image size for inpainting. This is useful when the masked area is small while + the image is large and contain information irrelevant for inpainting, such as background. + strength (`float`, *optional*, defaults to 1.0): + Indicates extent to transform the reference `image`. Must be between 0 and 1. `image` is used as a + starting point and more noise is added the higher the `strength`. The number of denoising steps depends + on the amount of noise initially added. When `strength` is 1, added noise is maximum and the denoising + process runs for the full number of iterations specified in `num_inference_steps`. A value of 1 + essentially ignores `image`. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 7.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used instead + negative_prompt_3 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_3` and + `text_encoder_3`. If not defined, `negative_prompt` is used instead + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.FloatTensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + ip_adapter_image (`PipelineImageInput`, *optional*): + Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`torch.Tensor`, *optional*): + Pre-generated image embeddings for IP-Adapter. Should be a tensor of shape `(batch_size, num_images, + emb_dim)`. It should contain the negative image embedding if `do_classifier_free_guidance` is set to + `True`. If not provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] instead of + a plain tuple. + joint_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int` defaults to 256): Maximum sequence length to use with the `prompt`. + mu (`float`, *optional*): `mu` value used for `dynamic_shifting`. + + Examples: + + Returns: + [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion_3.StableDiffusion3PipelineOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + height = height or self.transformer.config.sample_size * self.vae_scale_factor + width = width or self.transformer.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + prompt_2, + prompt_3, + height, + width, + strength, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + negative_prompt_3=negative_prompt_3, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + max_sequence_length=max_sequence_length, + ) + + self._guidance_scale = guidance_scale + self._clip_skip = clip_skip + self._joint_attention_kwargs = joint_attention_kwargs + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + prompt_3=prompt_3, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + negative_prompt_3=negative_prompt_3, + do_classifier_free_guidance=self.do_classifier_free_guidance, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + device=device, + clip_skip=self.clip_skip, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + ) + + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + pooled_prompt_embeds = torch.cat([negative_pooled_prompt_embeds, pooled_prompt_embeds], dim=0) + + # 3. Prepare timesteps + scheduler_kwargs = {} + if self.scheduler.config.get("use_dynamic_shifting", None) and mu is None: + image_seq_len = (int(height) // self.vae_scale_factor // self.transformer.config.patch_size) * ( + int(width) // self.vae_scale_factor // self.transformer.config.patch_size + ) + mu = calculate_shift( + image_seq_len, + self.scheduler.config.get("base_image_seq_len", 256), + self.scheduler.config.get("max_image_seq_len", 4096), + self.scheduler.config.get("base_shift", 0.5), + self.scheduler.config.get("max_shift", 1.16), + ) + scheduler_kwargs["mu"] = mu + elif mu is not None: + scheduler_kwargs["mu"] = mu + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, sigmas=sigmas, **scheduler_kwargs + ) + timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, strength, device) + # check that number of inference steps is not < 1 - as this doesn't make sense + if num_inference_steps < 1: + raise ValueError( + f"After adjusting the num_inference_steps by strength parameter: {strength}, the number of pipeline" + f"steps is {num_inference_steps} which is < 1 and not appropriate for this pipeline." + ) + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + + # create a boolean to check if the strength is set to 1. if so then initialise the latents with pure noise + is_strength_max = strength == 1.0 + + # 4. Preprocess mask and image + if padding_mask_crop is not None: + crops_coords = self.mask_processor.get_crop_region(mask_image, width, height, pad=padding_mask_crop) + resize_mode = "fill" + else: + crops_coords = None + resize_mode = "default" + + original_image = image + init_image = self.image_processor.preprocess( + image, height=height, width=width, crops_coords=crops_coords, resize_mode=resize_mode + ) + init_image = init_image.to(dtype=torch.float32) + + # 5. Prepare latent variables + num_channels_latents = self.vae.config.latent_channels + num_channels_transformer = self.transformer.config.in_channels + return_image_latents = num_channels_transformer == 16 + + latents_outputs = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + image=init_image, + timestep=latent_timestep, + is_strength_max=is_strength_max, + return_noise=True, + return_image_latents=return_image_latents, + ) + + if return_image_latents: + latents, noise, image_latents = latents_outputs + else: + latents, noise = latents_outputs + + # 6. Prepare mask latent variables + mask_condition = self.mask_processor.preprocess( + mask_image, height=height, width=width, resize_mode=resize_mode, crops_coords=crops_coords + ) + + if masked_image_latents is None: + masked_image = init_image * (mask_condition < 0.5) + else: + masked_image = masked_image_latents + + mask, masked_image_latents = self.prepare_mask_latents( + mask_condition, + masked_image, + batch_size, + num_images_per_prompt, + height, + width, + prompt_embeds.dtype, + device, + generator, + self.do_classifier_free_guidance, + ) + + # match the inpainting pipeline and will be updated with input + mask inpainting model later + if num_channels_transformer == 33: + # default case for stable-diffusion-v1-5/stable-diffusion-inpainting + num_channels_mask = mask.shape[1] + num_channels_masked_image = masked_image_latents.shape[1] + if ( + num_channels_latents + num_channels_mask + num_channels_masked_image + != self.transformer.config.in_channels + ): + raise ValueError( + f"Incorrect configuration settings! The config of `pipeline.transformer`: {self.transformer.config} expects" + f" {self.transformer.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_mask`: {num_channels_mask} + `num_channels_masked_image`: {num_channels_masked_image}" + f" = {num_channels_latents + num_channels_masked_image + num_channels_mask}. Please verify the config of" + " `pipeline.transformer` or your `mask_image` or `image` input." + ) + elif num_channels_transformer != 16: + raise ValueError( + f"The transformer {self.transformer.__class__} should have 16 input channels or 33 input channels, not {self.transformer.config.in_channels}." + ) + + # 7. Prepare image embeddings + if (ip_adapter_image is not None and self.is_ip_adapter_active) or ip_adapter_image_embeds is not None: + ip_adapter_image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + if self.joint_attention_kwargs is None: + self._joint_attention_kwargs = {"ip_adapter_image_embeds": ip_adapter_image_embeds} + else: + self._joint_attention_kwargs.update(ip_adapter_image_embeds=ip_adapter_image_embeds) + + # 8. Denoising loop + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + # broadcast to batch dimension in a way that's compatible with ONNX/Core ML + timestep = t.expand(latent_model_input.shape[0]) + + if num_channels_transformer == 33: + latent_model_input = torch.cat([latent_model_input, mask, masked_image_latents], dim=1) + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + pooled_projections=pooled_prompt_embeds, + joint_attention_kwargs=self.joint_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents_dtype = latents.dtype + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + if num_channels_transformer == 16: + init_latents_proper = image_latents + if self.do_classifier_free_guidance: + init_mask, _ = mask.chunk(2) + else: + init_mask = mask + + if i < len(timesteps) - 1: + noise_timestep = timesteps[i + 1] + init_latents_proper = self.scheduler.scale_noise( + init_latents_proper, torch.tensor([noise_timestep]), noise + ) + + latents = (1 - init_mask) * init_latents_proper + init_mask * latents + + if latents.dtype != latents_dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + latents = latents.to(latents_dtype) + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + negative_pooled_prompt_embeds = callback_outputs.pop( + "negative_pooled_prompt_embeds", negative_pooled_prompt_embeds + ) + mask = callback_outputs.pop("mask", mask) + masked_image_latents = callback_outputs.pop("masked_image_latents", masked_image_latents) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False, generator=generator)[ + 0 + ] + else: + image = latents + + do_denormalize = [True] * image.shape[0] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + if padding_mask_crop is not None: + image = [self.image_processor.apply_overlay(mask_image, original_image, i, crops_coords) for i in image] + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusion3PipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_attend_and_excite/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_attend_and_excite/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..cce556fceb2379be482d383e380a09836d25ce3b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_attend_and_excite/__init__.py @@ -0,0 +1,48 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_attend_and_excite"] = ["StableDiffusionAttendAndExcitePipeline"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_stable_diffusion_attend_and_excite import StableDiffusionAttendAndExcitePipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_attend_and_excite/pipeline_stable_diffusion_attend_and_excite.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_attend_and_excite/pipeline_stable_diffusion_attend_and_excite.py new file mode 100644 index 0000000000000000000000000000000000000000..a1ff99b6aa3492ec44dacc75b8fc52705635731a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_attend_and_excite/pipeline_stable_diffusion_attend_and_excite.py @@ -0,0 +1,1113 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +import math +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import numpy as np +import torch +from torch.nn import functional as F +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer + +from ...image_processor import VaeImageProcessor +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.attention_processor import Attention +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion import StableDiffusionPipelineOutput +from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionAttendAndExcitePipeline + + >>> pipe = StableDiffusionAttendAndExcitePipeline.from_pretrained( + ... "CompVis/stable-diffusion-v1-4", torch_dtype=torch.float16 + ... ).to("cuda") + + + >>> prompt = "a cat and a frog" + + >>> # use get_indices function to find out indices of the tokens you want to alter + >>> pipe.get_indices(prompt) + {0: '<|startoftext|>', 1: 'a', 2: 'cat', 3: 'and', 4: 'a', 5: 'frog', 6: '<|endoftext|>'} + + >>> token_indices = [2, 5] + >>> seed = 6141 + >>> generator = torch.Generator("cuda").manual_seed(seed) + + >>> images = pipe( + ... prompt=prompt, + ... token_indices=token_indices, + ... guidance_scale=7.5, + ... generator=generator, + ... num_inference_steps=50, + ... max_iter_to_alter=25, + ... ).images + + >>> image = images[0] + >>> image.save(f"../images/{prompt}_{seed}.png") + ``` +""" + + +class AttentionStore: + @staticmethod + def get_empty_store(): + return {"down": [], "mid": [], "up": []} + + def __call__(self, attn, is_cross: bool, place_in_unet: str): + if self.cur_att_layer >= 0 and is_cross: + if attn.shape[1] == np.prod(self.attn_res): + self.step_store[place_in_unet].append(attn) + + self.cur_att_layer += 1 + if self.cur_att_layer == self.num_att_layers: + self.cur_att_layer = 0 + self.between_steps() + + def between_steps(self): + self.attention_store = self.step_store + self.step_store = self.get_empty_store() + + def get_average_attention(self): + average_attention = self.attention_store + return average_attention + + def aggregate_attention(self, from_where: List[str]) -> torch.Tensor: + """Aggregates the attention across the different layers and heads at the specified resolution.""" + out = [] + attention_maps = self.get_average_attention() + for location in from_where: + for item in attention_maps[location]: + cross_maps = item.reshape(-1, self.attn_res[0], self.attn_res[1], item.shape[-1]) + out.append(cross_maps) + out = torch.cat(out, dim=0) + out = out.sum(0) / out.shape[0] + return out + + def reset(self): + self.cur_att_layer = 0 + self.step_store = self.get_empty_store() + self.attention_store = {} + + def __init__(self, attn_res): + """ + Initialize an empty AttentionStore :param step_index: used to visualize only a specific step in the diffusion + process + """ + self.num_att_layers = -1 + self.cur_att_layer = 0 + self.step_store = self.get_empty_store() + self.attention_store = {} + self.curr_step_index = 0 + self.attn_res = attn_res + + +class AttendExciteAttnProcessor: + def __init__(self, attnstore, place_in_unet): + super().__init__() + self.attnstore = attnstore + self.place_in_unet = place_in_unet + + def __call__(self, attn: Attention, hidden_states, encoder_hidden_states=None, attention_mask=None): + batch_size, sequence_length, _ = hidden_states.shape + attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size) + + query = attn.to_q(hidden_states) + + is_cross = encoder_hidden_states is not None + encoder_hidden_states = encoder_hidden_states if encoder_hidden_states is not None else hidden_states + key = attn.to_k(encoder_hidden_states) + value = attn.to_v(encoder_hidden_states) + + query = attn.head_to_batch_dim(query) + key = attn.head_to_batch_dim(key) + value = attn.head_to_batch_dim(value) + + attention_probs = attn.get_attention_scores(query, key, attention_mask) + + # only need to store attention maps during the Attend and Excite process + if attention_probs.requires_grad: + self.attnstore(attention_probs, is_cross, self.place_in_unet) + + hidden_states = torch.bmm(attention_probs, value) + hidden_states = attn.batch_to_head_dim(hidden_states) + + # linear proj + hidden_states = attn.to_out[0](hidden_states) + # dropout + hidden_states = attn.to_out[1](hidden_states) + + return hidden_states + + +class StableDiffusionAttendAndExcitePipeline( + DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin, TextualInversionLoaderMixin +): + r""" + Pipeline for text-to-image generation using Stable Diffusion and Attend-and-Excite. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + _last_supported_version = "0.33.1" + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor"] + _exclude_from_cpu_offload = ["safety_checker"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + indices, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + indices_is_list_ints = isinstance(indices, list) and isinstance(indices[0], int) + indices_is_list_list_ints = ( + isinstance(indices, list) and isinstance(indices[0], list) and isinstance(indices[0][0], int) + ) + + if not indices_is_list_ints and not indices_is_list_list_ints: + raise TypeError("`indices` must be a list of ints or a list of a list of ints") + + if indices_is_list_ints: + indices_batch_size = 1 + elif indices_is_list_list_ints: + indices_batch_size = len(indices) + + if prompt is not None and isinstance(prompt, str): + prompt_batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + prompt_batch_size = len(prompt) + elif prompt_embeds is not None: + prompt_batch_size = prompt_embeds.shape[0] + + if indices_batch_size != prompt_batch_size: + raise ValueError( + f"indices batch size must be same as prompt batch size. indices batch size: {indices_batch_size}, prompt batch size: {prompt_batch_size}" + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + @staticmethod + def _compute_max_attention_per_index( + attention_maps: torch.Tensor, + indices: List[int], + ) -> List[torch.Tensor]: + """Computes the maximum attention value for each of the tokens we wish to alter.""" + attention_for_text = attention_maps[:, :, 1:-1] + attention_for_text *= 100 + attention_for_text = torch.nn.functional.softmax(attention_for_text, dim=-1) + + # Shift indices since we removed the first token + indices = [index - 1 for index in indices] + + # Extract the maximum values + max_indices_list = [] + for i in indices: + image = attention_for_text[:, :, i] + smoothing = GaussianSmoothing().to(attention_maps.device) + input = F.pad(image.unsqueeze(0).unsqueeze(0), (1, 1, 1, 1), mode="reflect") + image = smoothing(input).squeeze(0).squeeze(0) + max_indices_list.append(image.max()) + return max_indices_list + + def _aggregate_and_get_max_attention_per_token( + self, + indices: List[int], + ): + """Aggregates the attention for each token and computes the max activation value for each token to alter.""" + attention_maps = self.attention_store.aggregate_attention( + from_where=("up", "down", "mid"), + ) + max_attention_per_index = self._compute_max_attention_per_index( + attention_maps=attention_maps, + indices=indices, + ) + return max_attention_per_index + + @staticmethod + def _compute_loss(max_attention_per_index: List[torch.Tensor]) -> torch.Tensor: + """Computes the attend-and-excite loss using the maximum attention value for each token.""" + losses = [max(0, 1.0 - curr_max) for curr_max in max_attention_per_index] + loss = max(losses) + return loss + + @staticmethod + def _update_latent(latents: torch.Tensor, loss: torch.Tensor, step_size: float) -> torch.Tensor: + """Update the latent according to the computed loss.""" + grad_cond = torch.autograd.grad(loss.requires_grad_(True), [latents], retain_graph=True)[0] + latents = latents - step_size * grad_cond + return latents + + def _perform_iterative_refinement_step( + self, + latents: torch.Tensor, + indices: List[int], + loss: torch.Tensor, + threshold: float, + text_embeddings: torch.Tensor, + step_size: float, + t: int, + max_refinement_steps: int = 20, + ): + """ + Performs the iterative latent refinement introduced in the paper. Here, we continuously update the latent code + according to our loss objective until the given threshold is reached for all tokens. + """ + iteration = 0 + target_loss = max(0, 1.0 - threshold) + while loss > target_loss: + iteration += 1 + + latents = latents.clone().detach().requires_grad_(True) + self.unet(latents, t, encoder_hidden_states=text_embeddings).sample + self.unet.zero_grad() + + # Get max activation value for each subject token + max_attention_per_index = self._aggregate_and_get_max_attention_per_token( + indices=indices, + ) + + loss = self._compute_loss(max_attention_per_index) + + if loss != 0: + latents = self._update_latent(latents, loss, step_size) + + logger.info(f"\t Try {iteration}. loss: {loss}") + + if iteration >= max_refinement_steps: + logger.info(f"\t Exceeded max number of iterations ({max_refinement_steps})! ") + break + + # Run one more time but don't compute gradients and update the latents. + # We just need to compute the new loss - the grad update will occur below + latents = latents.clone().detach().requires_grad_(True) + _ = self.unet(latents, t, encoder_hidden_states=text_embeddings).sample + self.unet.zero_grad() + + # Get max activation value for each subject token + max_attention_per_index = self._aggregate_and_get_max_attention_per_token( + indices=indices, + ) + loss = self._compute_loss(max_attention_per_index) + logger.info(f"\t Finished with loss of: {loss}") + return loss, latents, max_attention_per_index + + def register_attention_control(self): + attn_procs = {} + cross_att_count = 0 + for name in self.unet.attn_processors.keys(): + if name.startswith("mid_block"): + place_in_unet = "mid" + elif name.startswith("up_blocks"): + place_in_unet = "up" + elif name.startswith("down_blocks"): + place_in_unet = "down" + else: + continue + + cross_att_count += 1 + attn_procs[name] = AttendExciteAttnProcessor(attnstore=self.attention_store, place_in_unet=place_in_unet) + + self.unet.set_attn_processor(attn_procs) + self.attention_store.num_att_layers = cross_att_count + + def get_indices(self, prompt: str) -> Dict[str, int]: + """Utility function to list the indices of the tokens you wish to alte""" + ids = self.tokenizer(prompt).input_ids + indices = {i: tok for tok, i in zip(self.tokenizer.convert_ids_to_tokens(ids), range(len(ids)))} + return indices + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]], + token_indices: Union[List[int], List[List[int]]], + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: int = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + max_iter_to_alter: int = 25, + thresholds: dict = {0: 0.05, 10: 0.5, 20: 0.8}, + scale_factor: int = 20, + attn_res: Optional[Tuple[int]] = (16, 16), + clip_skip: Optional[int] = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + token_indices (`List[int]`): + The token indices to alter with attend-and-excite. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + max_iter_to_alter (`int`, *optional*, defaults to `25`): + Number of denoising steps to apply attend-and-excite. The `max_iter_to_alter` denoising steps are when + attend-and-excite is applied. For example, if `max_iter_to_alter` is `25` and there are a total of `30` + denoising steps, the first `25` denoising steps applies attend-and-excite and the last `5` will not. + thresholds (`dict`, *optional*, defaults to `{0: 0.05, 10: 0.5, 20: 0.8}`): + Dictionary defining the iterations and desired thresholds to apply iterative latent refinement in. + scale_factor (`int`, *optional*, default to 20): + Scale factor to control the step size of each attend-and-excite update. + attn_res (`tuple`, *optional*, default computed from width and height): + The 2D resolution of the semantic attention map. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + token_indices, + height, + width, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + if attn_res is None: + attn_res = int(np.ceil(width / 32)), int(np.ceil(height / 32)) + self.attention_store = AttentionStore(attn_res) + original_attn_proc = self.unet.attn_processors + self.register_attention_control() + + # default config for step size from original repo + scale_range = np.linspace(1.0, 0.5, len(self.scheduler.timesteps)) + step_size = scale_factor * np.sqrt(scale_range) + + text_embeddings = ( + prompt_embeds[batch_size * num_images_per_prompt :] if do_classifier_free_guidance else prompt_embeds + ) + + if isinstance(token_indices[0], int): + token_indices = [token_indices] + + indices = [] + + for ind in token_indices: + indices = indices + [ind] * num_images_per_prompt + + # 7. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # Attend and excite process + with torch.enable_grad(): + latents = latents.clone().detach().requires_grad_(True) + updated_latents = [] + for latent, index, text_embedding in zip(latents, indices, text_embeddings): + # Forward pass of denoising with text conditioning + latent = latent.unsqueeze(0) + text_embedding = text_embedding.unsqueeze(0) + + self.unet( + latent, + t, + encoder_hidden_states=text_embedding, + cross_attention_kwargs=cross_attention_kwargs, + ).sample + self.unet.zero_grad() + + # Get max activation value for each subject token + max_attention_per_index = self._aggregate_and_get_max_attention_per_token( + indices=index, + ) + + loss = self._compute_loss(max_attention_per_index=max_attention_per_index) + + # If this is an iterative refinement step, verify we have reached the desired threshold for all + if i in thresholds.keys() and loss > 1.0 - thresholds[i]: + loss, latent, max_attention_per_index = self._perform_iterative_refinement_step( + latents=latent, + indices=index, + loss=loss, + threshold=thresholds[i], + text_embeddings=text_embedding, + step_size=step_size[i], + t=t, + ) + + # Perform gradient update + if i < max_iter_to_alter: + if loss != 0: + latent = self._update_latent( + latents=latent, + loss=loss, + step_size=step_size[i], + ) + logger.info(f"Iteration {i} | Loss: {loss:0.4f}") + + updated_latents.append(latent) + + latents = torch.cat(updated_latents, dim=0) + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + ).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # 8. Post-processing + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + self.maybe_free_model_hooks() + # make sure to set the original attention processors back + self.unet.set_attn_processor(original_attn_proc) + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) + + +class GaussianSmoothing(torch.nn.Module): + """ + Arguments: + Apply gaussian smoothing on a 1d, 2d or 3d tensor. Filtering is performed separately for each channel in the input + using a depthwise convolution. + channels (int, sequence): Number of channels of the input tensors. Output will + have this number of channels as well. + kernel_size (int, sequence): Size of the gaussian kernel. sigma (float, sequence): Standard deviation of the + gaussian kernel. dim (int, optional): The number of dimensions of the data. + Default value is 2 (spatial). + """ + + # channels=1, kernel_size=kernel_size, sigma=sigma, dim=2 + def __init__( + self, + channels: int = 1, + kernel_size: int = 3, + sigma: float = 0.5, + dim: int = 2, + ): + super().__init__() + + if isinstance(kernel_size, int): + kernel_size = [kernel_size] * dim + if isinstance(sigma, float): + sigma = [sigma] * dim + + # The gaussian kernel is the product of the + # gaussian function of each dimension. + kernel = 1 + meshgrids = torch.meshgrid([torch.arange(size, dtype=torch.float32) for size in kernel_size]) + for size, std, mgrid in zip(kernel_size, sigma, meshgrids): + mean = (size - 1) / 2 + kernel *= 1 / (std * math.sqrt(2 * math.pi)) * torch.exp(-(((mgrid - mean) / (2 * std)) ** 2)) + + # Make sure sum of values in gaussian kernel equals 1. + kernel = kernel / torch.sum(kernel) + + # Reshape to depthwise convolutional weight + kernel = kernel.view(1, 1, *kernel.size()) + kernel = kernel.repeat(channels, *[1] * (kernel.dim() - 1)) + + self.register_buffer("weight", kernel) + self.groups = channels + + if dim == 1: + self.conv = F.conv1d + elif dim == 2: + self.conv = F.conv2d + elif dim == 3: + self.conv = F.conv3d + else: + raise RuntimeError("Only 1, 2 and 3 dimensions are supported. Received {}.".format(dim)) + + def forward(self, input): + """ + Arguments: + Apply gaussian filter to input. + input (torch.Tensor): Input to apply gaussian filter on. + Returns: + filtered (torch.Tensor): Filtered output. + """ + return self.conv(input, weight=self.weight.to(input.dtype), groups=self.groups) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_diffedit/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_diffedit/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e2145edb96c6be124abf9e9a21b9a5e8a3f3d641 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_diffedit/__init__.py @@ -0,0 +1,48 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_diffedit"] = ["StableDiffusionDiffEditPipeline"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_stable_diffusion_diffedit import StableDiffusionDiffEditPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_diffedit/pipeline_stable_diffusion_diffedit.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_diffedit/pipeline_stable_diffusion_diffedit.py new file mode 100644 index 0000000000000000000000000000000000000000..65c25ffbe4924376208455a8f66b05640be23ed2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_diffedit/pipeline_stable_diffusion_diffedit.py @@ -0,0 +1,1548 @@ +# Copyright 2025 DiffEdit Authors and Pix2Pix Zero Authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from dataclasses import dataclass +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from packaging import version +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer + +from ...configuration_utils import FrozenDict +from ...image_processor import VaeImageProcessor +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import DDIMInverseScheduler, KarrasDiffusionSchedulers +from ...utils import ( + PIL_INTERPOLATION, + USE_PEFT_BACKEND, + BaseOutput, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion import StableDiffusionPipelineOutput +from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +class DiffEditInversionPipelineOutput(BaseOutput): + """ + Output class for Stable Diffusion pipelines. + + Args: + latents (`torch.Tensor`) + inverted latents tensor + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `num_timesteps * batch_size` or numpy array of shape `(num_timesteps, + batch_size, height, width, num_channels)`. PIL images or numpy array present the denoised images of the + diffusion pipeline. + """ + + latents: torch.Tensor + images: Union[List[PIL.Image.Image], np.ndarray] + + +EXAMPLE_DOC_STRING = """ + + ```py + >>> import PIL + >>> import requests + >>> import torch + >>> from io import BytesIO + + >>> from diffusers import StableDiffusionDiffEditPipeline + + + >>> def download_image(url): + ... response = requests.get(url) + ... return PIL.Image.open(BytesIO(response.content)).convert("RGB") + + + >>> img_url = "https://github.com/Xiang-cd/DiffEdit-stable-diffusion/raw/main/assets/origin.png" + + >>> init_image = download_image(img_url).resize((768, 768)) + + >>> pipeline = StableDiffusionDiffEditPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-2-1", torch_dtype=torch.float16 + ... ) + + >>> pipeline.scheduler = DDIMScheduler.from_config(pipeline.scheduler.config) + >>> pipeline.inverse_scheduler = DDIMInverseScheduler.from_config(pipeline.scheduler.config) + >>> pipeline.enable_model_cpu_offload() + + >>> mask_prompt = "A bowl of fruits" + >>> prompt = "A bowl of pears" + + >>> mask_image = pipeline.generate_mask(image=init_image, source_prompt=prompt, target_prompt=mask_prompt) + >>> image_latents = pipeline.invert(image=init_image, prompt=mask_prompt).latents + >>> image = pipeline(prompt=prompt, mask_image=mask_image, image_latents=image_latents).images[0] + ``` +""" + +EXAMPLE_INVERT_DOC_STRING = """ + ```py + >>> import PIL + >>> import requests + >>> import torch + >>> from io import BytesIO + + >>> from diffusers import StableDiffusionDiffEditPipeline + + + >>> def download_image(url): + ... response = requests.get(url) + ... return PIL.Image.open(BytesIO(response.content)).convert("RGB") + + + >>> img_url = "https://github.com/Xiang-cd/DiffEdit-stable-diffusion/raw/main/assets/origin.png" + + >>> init_image = download_image(img_url).resize((768, 768)) + + >>> pipeline = StableDiffusionDiffEditPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-2-1", torch_dtype=torch.float16 + ... ) + + >>> pipeline.scheduler = DDIMScheduler.from_config(pipeline.scheduler.config) + >>> pipeline.inverse_scheduler = DDIMInverseScheduler.from_config(pipeline.scheduler.config) + >>> pipeline.enable_model_cpu_offload() + + >>> prompt = "A bowl of fruits" + + >>> inverted_latents = pipeline.invert(image=init_image, prompt=prompt).latents + ``` +""" + + +def auto_corr_loss(hidden_states, generator=None): + reg_loss = 0.0 + for i in range(hidden_states.shape[0]): + for j in range(hidden_states.shape[1]): + noise = hidden_states[i : i + 1, j : j + 1, :, :] + while True: + roll_amount = torch.randint(noise.shape[2] // 2, (1,), generator=generator).item() + reg_loss += (noise * torch.roll(noise, shifts=roll_amount, dims=2)).mean() ** 2 + reg_loss += (noise * torch.roll(noise, shifts=roll_amount, dims=3)).mean() ** 2 + + if noise.shape[2] <= 8: + break + noise = torch.nn.functional.avg_pool2d(noise, kernel_size=2) + return reg_loss + + +def kl_divergence(hidden_states): + return hidden_states.var() + hidden_states.mean() ** 2 - 1 - torch.log(hidden_states.var() + 1e-7) + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess +def preprocess(image): + deprecation_message = "The preprocess method is deprecated and will be removed in diffusers 1.0.0. Please use VaeImageProcessor.preprocess(...) instead" + deprecate("preprocess", "1.0.0", deprecation_message, standard_warn=False) + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + w, h = image[0].size + w, h = (x - x % 8 for x in (w, h)) # resize to integer multiple of 8 + + image = [np.array(i.resize((w, h), resample=PIL_INTERPOLATION["lanczos"]))[None, :] for i in image] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = 2.0 * image - 1.0 + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + image = torch.cat(image, dim=0) + return image + + +def preprocess_mask(mask, batch_size: int = 1): + if not isinstance(mask, torch.Tensor): + # preprocess mask + if isinstance(mask, (PIL.Image.Image, np.ndarray)): + mask = [mask] + + if isinstance(mask, list): + if isinstance(mask[0], PIL.Image.Image): + mask = [np.array(m.convert("L")).astype(np.float32) / 255.0 for m in mask] + if isinstance(mask[0], np.ndarray): + mask = np.stack(mask, axis=0) if mask[0].ndim < 3 else np.concatenate(mask, axis=0) + mask = torch.from_numpy(mask) + elif isinstance(mask[0], torch.Tensor): + mask = torch.stack(mask, dim=0) if mask[0].ndim < 3 else torch.cat(mask, dim=0) + + # Batch and add channel dim for single mask + if mask.ndim == 2: + mask = mask.unsqueeze(0).unsqueeze(0) + + # Batch single mask or add channel dim + if mask.ndim == 3: + # Single batched mask, no channel dim or single mask not batched but channel dim + if mask.shape[0] == 1: + mask = mask.unsqueeze(0) + + # Batched masks no channel dim + else: + mask = mask.unsqueeze(1) + + # Check mask shape + if batch_size > 1: + if mask.shape[0] == 1: + mask = torch.cat([mask] * batch_size) + elif mask.shape[0] > 1 and mask.shape[0] != batch_size: + raise ValueError( + f"`mask_image` with batch size {mask.shape[0]} cannot be broadcasted to batch size {batch_size} " + f"inferred by prompt inputs" + ) + + if mask.shape[1] != 1: + raise ValueError(f"`mask_image` must have 1 channel, but has {mask.shape[1]} channels") + + # Check mask is in [0, 1] + if mask.min() < 0 or mask.max() > 1: + raise ValueError("`mask_image` should be in [0, 1] range") + + # Binarize mask + mask[mask < 0.5] = 0 + mask[mask >= 0.5] = 1 + + return mask + + +class StableDiffusionDiffEditPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, +): + r""" + > [!WARNING] > This is an experimental feature! + + Pipeline for text-guided image inpainting using Stable Diffusion and DiffEdit. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading and saving methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. + inverse_scheduler ([`DDIMInverseScheduler`]): + A scheduler to be used in combination with `unet` to fill in the unmasked part of the input latents. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + _last_supported_version = "0.33.1" + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "inverse_scheduler"] + _exclude_from_cpu_offload = ["safety_checker"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + inverse_scheduler: DDIMInverseScheduler, + requires_safety_checker: bool = True, + ): + super().__init__() + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "skip_prk_steps", True) is False: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration" + " `skip_prk_steps`. `skip_prk_steps` should be set to True in the configuration file. Please make" + " sure to update the config accordingly as not setting `skip_prk_steps` in the config might lead to" + " incorrect results in future versions. If you have downloaded this checkpoint from the Hugging Face" + " Hub, it would be very nice if you could open a Pull request for the" + " `scheduler/scheduler_config.json` file" + ) + deprecate("skip_prk_steps not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["skip_prk_steps"] = True + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + is_unet_sample_size_less_64 = ( + unet is not None and hasattr(unet.config, "sample_size") and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely .If you're checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + inverse_scheduler=inverse_scheduler, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + def check_inputs( + self, + prompt, + strength, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ): + if (strength is None) or (strength is not None and (strength < 0 or strength > 1)): + raise ValueError( + f"The value of `strength` should in [0.0, 1.0] but is, but is {strength} of type {type(strength)}." + ) + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + def check_source_inputs( + self, + source_prompt=None, + source_negative_prompt=None, + source_prompt_embeds=None, + source_negative_prompt_embeds=None, + ): + if source_prompt is not None and source_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `source_prompt`: {source_prompt} and `source_prompt_embeds`: {source_prompt_embeds}." + " Please make sure to only forward one of the two." + ) + elif source_prompt is None and source_prompt_embeds is None: + raise ValueError( + "Provide either `source_image` or `source_prompt_embeds`. Cannot leave all both of the arguments undefined." + ) + elif source_prompt is not None and ( + not isinstance(source_prompt, str) and not isinstance(source_prompt, list) + ): + raise ValueError(f"`source_prompt` has to be of type `str` or `list` but is {type(source_prompt)}") + + if source_negative_prompt is not None and source_negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `source_negative_prompt`: {source_negative_prompt} and `source_negative_prompt_embeds`:" + f" {source_negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if source_prompt_embeds is not None and source_negative_prompt_embeds is not None: + if source_prompt_embeds.shape != source_negative_prompt_embeds.shape: + raise ValueError( + "`source_prompt_embeds` and `source_negative_prompt_embeds` must have the same shape when passed" + f" directly, but got: `source_prompt_embeds` {source_prompt_embeds.shape} !=" + f" `source_negative_prompt_embeds` {source_negative_prompt_embeds.shape}." + ) + + def get_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + + t_start = max(num_inference_steps - init_timestep, 0) + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + + return timesteps, num_inference_steps - t_start + + def get_inverse_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + + t_start = max(num_inference_steps - init_timestep, 0) + + # safety for t_start overflow to prevent empty timsteps slice + if t_start == 0: + return self.inverse_scheduler.timesteps, num_inference_steps + timesteps = self.inverse_scheduler.timesteps[:-t_start] + + return timesteps, num_inference_steps - t_start + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def prepare_image_latents(self, image, batch_size, dtype, device, generator=None): + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + image = image.to(device=device, dtype=dtype) + + if image.shape[1] == 4: + latents = image + + else: + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if isinstance(generator, list): + latents = [ + self.vae.encode(image[i : i + 1]).latent_dist.sample(generator[i]) for i in range(batch_size) + ] + latents = torch.cat(latents, dim=0) + else: + latents = self.vae.encode(image).latent_dist.sample(generator) + + latents = self.vae.config.scaling_factor * latents + + if batch_size != latents.shape[0]: + if batch_size % latents.shape[0] == 0: + # expand image_latents for batch_size + deprecation_message = ( + f"You have passed {batch_size} text prompts (`prompt`), but only {latents.shape[0]} initial" + " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" + " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" + " your script to pass as many initial images as text prompts to suppress this warning." + ) + deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) + additional_latents_per_image = batch_size // latents.shape[0] + latents = torch.cat([latents] * additional_latents_per_image, dim=0) + else: + raise ValueError( + f"Cannot duplicate `image` of batch size {latents.shape[0]} to {batch_size} text prompts." + ) + else: + latents = torch.cat([latents], dim=0) + + return latents + + def get_epsilon(self, model_output: torch.Tensor, sample: torch.Tensor, timestep: int): + pred_type = self.inverse_scheduler.config.prediction_type + alpha_prod_t = self.inverse_scheduler.alphas_cumprod[timestep] + + beta_prod_t = 1 - alpha_prod_t + + if pred_type == "epsilon": + return model_output + elif pred_type == "sample": + return (sample - alpha_prod_t ** (0.5) * model_output) / beta_prod_t ** (0.5) + elif pred_type == "v_prediction": + return (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {pred_type} must be one of `epsilon`, `sample`, or `v_prediction`" + ) + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def generate_mask( + self, + image: Union[torch.Tensor, PIL.Image.Image] = None, + target_prompt: Optional[Union[str, List[str]]] = None, + target_negative_prompt: Optional[Union[str, List[str]]] = None, + target_prompt_embeds: Optional[torch.Tensor] = None, + target_negative_prompt_embeds: Optional[torch.Tensor] = None, + source_prompt: Optional[Union[str, List[str]]] = None, + source_negative_prompt: Optional[Union[str, List[str]]] = None, + source_prompt_embeds: Optional[torch.Tensor] = None, + source_negative_prompt_embeds: Optional[torch.Tensor] = None, + num_maps_per_mask: Optional[int] = 10, + mask_encode_strength: Optional[float] = 0.5, + mask_thresholding_ratio: Optional[float] = 3.0, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + output_type: Optional[str] = "np", + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + ): + r""" + Generate a latent mask given a mask prompt, a target prompt, and an image. + + Args: + image (`PIL.Image.Image`): + `Image` or tensor representing an image batch to be used for computing the mask. + target_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide semantic mask generation. If not defined, you need to pass + `prompt_embeds`. + target_negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + target_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + target_negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + source_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide semantic mask generation using DiffEdit. If not defined, you need to + pass `source_prompt_embeds` or `source_image` instead. + source_negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide semantic mask generation away from using DiffEdit. If not defined, you + need to pass `source_negative_prompt_embeds` or `source_image` instead. + source_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings to guide the semantic mask generation. Can be used to easily tweak text + inputs (prompt weighting). If not provided, text embeddings are generated from `source_prompt` input + argument. + source_negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings to negatively guide the semantic mask generation. Can be used to easily + tweak text inputs (prompt weighting). If not provided, text embeddings are generated from + `source_negative_prompt` input argument. + num_maps_per_mask (`int`, *optional*, defaults to 10): + The number of noise maps sampled to generate the semantic mask using DiffEdit. + mask_encode_strength (`float`, *optional*, defaults to 0.5): + The strength of the noise maps sampled to generate the semantic mask using DiffEdit. Must be between 0 + and 1. + mask_thresholding_ratio (`float`, *optional*, defaults to 3.0): + The maximum multiple of the mean absolute difference used to clamp the semantic guidance map before + mask binarization. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the + [`~models.attention_processor.AttnProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + + Examples: + + Returns: + `List[PIL.Image.Image]` or `np.array`: + When returning a `List[PIL.Image.Image]`, the list consists of a batch of single-channel binary images + with dimensions `(height // self.vae_scale_factor, width // self.vae_scale_factor)`. If it's + `np.array`, the shape is `(batch_size, height // self.vae_scale_factor, width // + self.vae_scale_factor)`. + """ + + # 1. Check inputs (Provide dummy argument for callback_steps) + self.check_inputs( + target_prompt, + mask_encode_strength, + 1, + target_negative_prompt, + target_prompt_embeds, + target_negative_prompt_embeds, + ) + + self.check_source_inputs( + source_prompt, + source_negative_prompt, + source_prompt_embeds, + source_negative_prompt_embeds, + ) + + if (num_maps_per_mask is None) or ( + num_maps_per_mask is not None and (not isinstance(num_maps_per_mask, int) or num_maps_per_mask <= 0) + ): + raise ValueError( + f"`num_maps_per_mask` has to be a positive integer but is {num_maps_per_mask} of type" + f" {type(num_maps_per_mask)}." + ) + + if mask_thresholding_ratio is None or mask_thresholding_ratio <= 0: + raise ValueError( + f"`mask_thresholding_ratio` has to be positive but is {mask_thresholding_ratio} of type" + f" {type(mask_thresholding_ratio)}." + ) + + # 2. Define call parameters + if target_prompt is not None and isinstance(target_prompt, str): + batch_size = 1 + elif target_prompt is not None and isinstance(target_prompt, list): + batch_size = len(target_prompt) + else: + batch_size = target_prompt_embeds.shape[0] + if cross_attention_kwargs is None: + cross_attention_kwargs = {} + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompts + (cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None) + target_negative_prompt_embeds, target_prompt_embeds = self.encode_prompt( + target_prompt, + device, + num_maps_per_mask, + do_classifier_free_guidance, + target_negative_prompt, + prompt_embeds=target_prompt_embeds, + negative_prompt_embeds=target_negative_prompt_embeds, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + target_prompt_embeds = torch.cat([target_negative_prompt_embeds, target_prompt_embeds]) + + source_negative_prompt_embeds, source_prompt_embeds = self.encode_prompt( + source_prompt, + device, + num_maps_per_mask, + do_classifier_free_guidance, + source_negative_prompt, + prompt_embeds=source_prompt_embeds, + negative_prompt_embeds=source_negative_prompt_embeds, + ) + if do_classifier_free_guidance: + source_prompt_embeds = torch.cat([source_negative_prompt_embeds, source_prompt_embeds]) + + # 4. Preprocess image + image = self.image_processor.preprocess(image).repeat_interleave(num_maps_per_mask, dim=0) + + # 5. Set timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps, _ = self.get_timesteps(num_inference_steps, mask_encode_strength, device) + encode_timestep = timesteps[0] + + # 6. Prepare image latents and add noise with specified strength + image_latents = self.prepare_image_latents( + image, batch_size * num_maps_per_mask, self.vae.dtype, device, generator + ) + noise = randn_tensor(image_latents.shape, generator=generator, device=device, dtype=self.vae.dtype) + image_latents = self.scheduler.add_noise(image_latents, noise, encode_timestep) + + latent_model_input = torch.cat([image_latents] * (4 if do_classifier_free_guidance else 2)) + latent_model_input = self.scheduler.scale_model_input(latent_model_input, encode_timestep) + + # 7. Predict the noise residual + prompt_embeds = torch.cat([source_prompt_embeds, target_prompt_embeds]) + noise_pred = self.unet( + latent_model_input, + encode_timestep, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + ).sample + + if do_classifier_free_guidance: + noise_pred_neg_src, noise_pred_source, noise_pred_uncond, noise_pred_target = noise_pred.chunk(4) + noise_pred_source = noise_pred_neg_src + guidance_scale * (noise_pred_source - noise_pred_neg_src) + noise_pred_target = noise_pred_uncond + guidance_scale * (noise_pred_target - noise_pred_uncond) + else: + noise_pred_source, noise_pred_target = noise_pred.chunk(2) + + # 8. Compute the mask from the absolute difference of predicted noise residuals + # TODO: Consider smoothing mask guidance map + mask_guidance_map = ( + torch.abs(noise_pred_target - noise_pred_source) + .reshape(batch_size, num_maps_per_mask, *noise_pred_target.shape[-3:]) + .mean([1, 2]) + ) + clamp_magnitude = mask_guidance_map.mean() * mask_thresholding_ratio + semantic_mask_image = mask_guidance_map.clamp(0, clamp_magnitude) / clamp_magnitude + semantic_mask_image = torch.where(semantic_mask_image <= 0.5, 0, 1) + mask_image = semantic_mask_image.cpu().numpy() + + # 9. Convert to Numpy array or PIL. + if output_type == "pil": + mask_image = self.image_processor.numpy_to_pil(mask_image) + + # Offload all models + self.maybe_free_model_hooks() + + return mask_image + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_INVERT_DOC_STRING) + def invert( + self, + prompt: Optional[Union[str, List[str]]] = None, + image: Union[torch.Tensor, PIL.Image.Image] = None, + num_inference_steps: int = 50, + inpaint_strength: float = 0.8, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + decode_latents: bool = False, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: Optional[int] = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + lambda_auto_corr: float = 20.0, + lambda_kl: float = 20.0, + num_reg_steps: int = 0, + num_auto_corr_rolls: int = 5, + ): + r""" + Generate inverted latents given a prompt and image. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + image (`PIL.Image.Image`): + `Image` or tensor representing an image batch to produce the inverted latents guided by `prompt`. + inpaint_strength (`float`, *optional*, defaults to 0.8): + Indicates extent of the noising process to run latent inversion. Must be between 0 and 1. When + `inpaint_strength` is 1, the inversion process is run for the full number of iterations specified in + `num_inference_steps`. `image` is used as a reference for the inversion process, and adding more noise + increases `inpaint_strength`. If `inpaint_strength` is 0, no inpainting occurs. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + generator (`torch.Generator`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + decode_latents (`bool`, *optional*, defaults to `False`): + Whether or not to decode the inverted latents into a generated image. Setting this argument to `True` + decodes all inverted latents for each timestep into a list of generated images. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.DiffEditInversionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the + [`~models.attention_processor.AttnProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + lambda_auto_corr (`float`, *optional*, defaults to 20.0): + Lambda parameter to control auto correction. + lambda_kl (`float`, *optional*, defaults to 20.0): + Lambda parameter to control Kullback-Leibler divergence output. + num_reg_steps (`int`, *optional*, defaults to 0): + Number of regularization loss steps. + num_auto_corr_rolls (`int`, *optional*, defaults to 5): + Number of auto correction roll steps. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.pipeline_stable_diffusion_diffedit.DiffEditInversionPipelineOutput`] or + `tuple`: + If `return_dict` is `True`, + [`~pipelines.stable_diffusion.pipeline_stable_diffusion_diffedit.DiffEditInversionPipelineOutput`] is + returned, otherwise a `tuple` is returned where the first element is the inverted latents tensors + ordered by increasing noise, and the second is the corresponding decoded images if `decode_latents` is + `True`, otherwise `None`. + """ + + # 1. Check inputs + self.check_inputs( + prompt, + inpaint_strength, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ) + + if image is None: + raise ValueError("`image` input cannot be undefined.") + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + if cross_attention_kwargs is None: + cross_attention_kwargs = {} + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Preprocess image + image = self.image_processor.preprocess(image) + + # 4. Prepare latent variables + num_images_per_prompt = 1 + latents = self.prepare_image_latents( + image, batch_size * num_images_per_prompt, self.vae.dtype, device, generator + ) + + # 5. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 6. Prepare timesteps + self.inverse_scheduler.set_timesteps(num_inference_steps, device=device) + timesteps, num_inference_steps = self.get_inverse_timesteps(num_inference_steps, inpaint_strength, device) + + # 7. Noising loop where we obtain the intermediate noised latent image for each timestep. + num_warmup_steps = len(timesteps) - num_inference_steps * self.inverse_scheduler.order + inverted_latents = [] + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.inverse_scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + ).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # regularization of the noise prediction (not in original code or paper but borrowed from Pix2PixZero) + if num_reg_steps > 0: + with torch.enable_grad(): + for _ in range(num_reg_steps): + if lambda_auto_corr > 0: + for _ in range(num_auto_corr_rolls): + var = torch.autograd.Variable(noise_pred.detach().clone(), requires_grad=True) + + # Derive epsilon from model output before regularizing to IID standard normal + var_epsilon = self.get_epsilon(var, latent_model_input.detach(), t) + + l_ac = auto_corr_loss(var_epsilon, generator=generator) + l_ac.backward() + + grad = var.grad.detach() / num_auto_corr_rolls + noise_pred = noise_pred - lambda_auto_corr * grad + + if lambda_kl > 0: + var = torch.autograd.Variable(noise_pred.detach().clone(), requires_grad=True) + + # Derive epsilon from model output before regularizing to IID standard normal + var_epsilon = self.get_epsilon(var, latent_model_input.detach(), t) + + l_kld = kl_divergence(var_epsilon) + l_kld.backward() + + grad = var.grad.detach() + noise_pred = noise_pred - lambda_kl * grad + + noise_pred = noise_pred.detach() + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.inverse_scheduler.step(noise_pred, t, latents).prev_sample + inverted_latents.append(latents.detach().clone()) + + # call the callback, if provided + if i == len(timesteps) - 1 or ( + (i + 1) > num_warmup_steps and (i + 1) % self.inverse_scheduler.order == 0 + ): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + assert len(inverted_latents) == len(timesteps) + latents = torch.stack(list(reversed(inverted_latents)), 1) + + # 8. Post-processing + image = None + if decode_latents: + image = self.decode_latents(latents.flatten(0, 1)) + + # 9. Convert to PIL. + if decode_latents and output_type == "pil": + image = self.image_processor.numpy_to_pil(image) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (latents, image) + + return DiffEditInversionPipelineOutput(latents=latents, images=image) + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Optional[Union[str, List[str]]] = None, + mask_image: Union[torch.Tensor, PIL.Image.Image] = None, + image_latents: Union[torch.Tensor, PIL.Image.Image] = None, + inpaint_strength: Optional[float] = 0.8, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: int = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + mask_image (`PIL.Image.Image`): + `Image` or tensor representing an image batch to mask the generated image. White pixels in the mask are + repainted, while black pixels are preserved. If `mask_image` is a PIL image, it is converted to a + single channel (luminance) before use. If it's a tensor, it should contain one color channel (L) + instead of 3, so the expected shape would be `(B, 1, H, W)`. + image_latents (`PIL.Image.Image` or `torch.Tensor`): + Partially noised image latents from the inversion process to be used as inputs for image generation. + inpaint_strength (`float`, *optional*, defaults to 0.8): + Indicates extent to inpaint the masked area. Must be between 0 and 1. When `inpaint_strength` is 1, the + denoising process is run on the masked area for the full number of iterations specified in + `num_inference_steps`. `image_latents` is used as a reference for the masked area, and adding more + noise to a region increases `inpaint_strength`. If `inpaint_strength` is 0, no inpainting occurs. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + + # 1. Check inputs + self.check_inputs( + prompt, + inpaint_strength, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ) + + if mask_image is None: + raise ValueError( + "`mask_image` input cannot be undefined. Use `generate_mask()` to compute `mask_image` from text prompts." + ) + if image_latents is None: + raise ValueError( + "`image_latents` input cannot be undefined. Use `invert()` to compute `image_latents` from input images." + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + if cross_attention_kwargs is None: + cross_attention_kwargs = {} + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Preprocess mask + mask_image = preprocess_mask(mask_image, batch_size) + latent_height, latent_width = mask_image.shape[-2:] + mask_image = torch.cat([mask_image] * num_images_per_prompt) + mask_image = mask_image.to(device=device, dtype=prompt_embeds.dtype) + + # 5. Set timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, inpaint_strength, device) + + # 6. Preprocess image latents + if isinstance(image_latents, list) and any(isinstance(l, torch.Tensor) and l.ndim == 5 for l in image_latents): + image_latents = torch.cat(image_latents).detach() + elif isinstance(image_latents, torch.Tensor) and image_latents.ndim == 5: + image_latents = image_latents.detach() + else: + image_latents = self.image_processor.preprocess(image_latents).detach() + + latent_shape = (self.vae.config.latent_channels, latent_height, latent_width) + if image_latents.shape[-3:] != latent_shape: + raise ValueError( + f"Each latent image in `image_latents` must have shape {latent_shape}, " + f"but has shape {image_latents.shape[-3:]}" + ) + if image_latents.ndim == 4: + image_latents = image_latents.reshape(batch_size, len(timesteps), *latent_shape) + if image_latents.shape[:2] != (batch_size, len(timesteps)): + raise ValueError( + f"`image_latents` must have batch size {batch_size} with latent images from {len(timesteps)}" + f" timesteps, but has batch size {image_latents.shape[0]} with latent images from" + f" {image_latents.shape[1]} timesteps." + ) + image_latents = image_latents.transpose(0, 1).repeat_interleave(num_images_per_prompt, dim=1) + image_latents = image_latents.to(device=device, dtype=prompt_embeds.dtype) + + # 7. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 8. Denoising loop + latents = image_latents[0].clone() + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + ).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # mask with inverted latents from appropriate timestep - use original image latent for last step + latents = latents * mask_image + image_latents[i] * (1 - mask_image) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..147980cbf9e5c3418fc1854787ae37b25e4fed56 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/__init__.py @@ -0,0 +1,50 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_gligen"] = ["StableDiffusionGLIGENPipeline"] + _import_structure["pipeline_stable_diffusion_gligen_text_image"] = ["StableDiffusionGLIGENTextImagePipeline"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_stable_diffusion_gligen import StableDiffusionGLIGENPipeline + from .pipeline_stable_diffusion_gligen_text_image import StableDiffusionGLIGENTextImagePipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/pipeline_stable_diffusion_gligen.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/pipeline_stable_diffusion_gligen.py new file mode 100644 index 0000000000000000000000000000000000000000..78b026684cfaa8aef49bf4360bb472ade9fa24e9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/pipeline_stable_diffusion_gligen.py @@ -0,0 +1,865 @@ +# Copyright 2025 The GLIGEN Authors and HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +import warnings +from typing import Any, Callable, Dict, List, Optional, Union + +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer + +from ...image_processor import VaeImageProcessor +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.attention import GatedSelfAttentionDense +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion import StableDiffusionPipelineOutput +from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionGLIGENPipeline + >>> from diffusers.utils import load_image + + >>> # Insert objects described by text at the region defined by bounding boxes + >>> pipe = StableDiffusionGLIGENPipeline.from_pretrained( + ... "masterful/gligen-1-4-inpainting-text-box", variant="fp16", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> input_image = load_image( + ... "https://hf.co/datasets/huggingface/documentation-images/resolve/main/diffusers/gligen/livingroom_modern.png" + ... ) + >>> prompt = "a birthday cake" + >>> boxes = [[0.2676, 0.6088, 0.4773, 0.7183]] + >>> phrases = ["a birthday cake"] + + >>> images = pipe( + ... prompt=prompt, + ... gligen_phrases=phrases, + ... gligen_inpaint_image=input_image, + ... gligen_boxes=boxes, + ... gligen_scheduled_sampling_beta=1, + ... output_type="pil", + ... num_inference_steps=50, + ... ).images + + >>> images[0].save("./gligen-1-4-inpainting-text-box.jpg") + + >>> # Generate an image described by the prompt and + >>> # insert objects described by text at the region defined by bounding boxes + >>> pipe = StableDiffusionGLIGENPipeline.from_pretrained( + ... "masterful/gligen-1-4-generation-text-box", variant="fp16", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> prompt = "a waterfall and a modern high speed train running through the tunnel in a beautiful forest with fall foliage" + >>> boxes = [[0.1387, 0.2051, 0.4277, 0.7090], [0.4980, 0.4355, 0.8516, 0.7266]] + >>> phrases = ["a waterfall", "a modern high speed train running through the tunnel"] + + >>> images = pipe( + ... prompt=prompt, + ... gligen_phrases=phrases, + ... gligen_boxes=boxes, + ... gligen_scheduled_sampling_beta=1, + ... output_type="pil", + ... num_inference_steps=50, + ... ).images + + >>> images[0].save("./gligen-1-4-generation-text-box.jpg") + ``` +""" + + +class StableDiffusionGLIGENPipeline(DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin): + r""" + Pipeline for text-to-image generation using Stable Diffusion with Grounded-Language-to-Image Generation (GLIGEN). + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.). + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + _last_supported_version = "0.33.1" + + _optional_components = ["safety_checker", "feature_extractor"] + model_cpu_offload_seq = "text_encoder->unet->vae" + _exclude_from_cpu_offload = ["safety_checker"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor, do_convert_rgb=True) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + gligen_phrases, + gligen_boxes, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if len(gligen_phrases) != len(gligen_boxes): + raise ValueError( + "length of `gligen_phrases` and `gligen_boxes` has to be same, but" + f" got: `gligen_phrases` {len(gligen_phrases)} != `gligen_boxes` {len(gligen_boxes)}" + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def enable_fuser(self, enabled=True): + for module in self.unet.modules(): + if type(module) is GatedSelfAttentionDense: + module.enabled = enabled + + def draw_inpaint_mask_from_boxes(self, boxes, size): + inpaint_mask = torch.ones(size[0], size[1]) + for box in boxes: + x0, x1 = box[0] * size[0], box[2] * size[0] + y0, y1 = box[1] * size[1], box[3] * size[1] + inpaint_mask[int(y0) : int(y1), int(x0) : int(x1)] = 0 + return inpaint_mask + + def crop(self, im, new_width, new_height): + width, height = im.size + left = (width - new_width) / 2 + top = (height - new_height) / 2 + right = (width + new_width) / 2 + bottom = (height + new_height) / 2 + return im.crop((left, top, right, bottom)) + + def target_size_center_crop(self, im, new_hw): + width, height = im.size + if width != height: + im = self.crop(im, min(height, width), min(height, width)) + return im.resize((new_hw, new_hw), PIL.Image.LANCZOS) + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + gligen_scheduled_sampling_beta: float = 0.3, + gligen_phrases: List[str] = None, + gligen_boxes: List[List[float]] = None, + gligen_inpaint_image: Optional[PIL.Image.Image] = None, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: Optional[int] = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + gligen_phrases (`List[str]`): + The phrases to guide what to include in each of the regions defined by the corresponding + `gligen_boxes`. There should only be one phrase per bounding box. + gligen_boxes (`List[List[float]]`): + The bounding boxes that identify rectangular regions of the image that are going to be filled with the + content described by the corresponding `gligen_phrases`. Each rectangular box is defined as a + `List[float]` of 4 elements `[xmin, ymin, xmax, ymax]` where each value is between [0,1]. + gligen_inpaint_image (`PIL.Image.Image`, *optional*): + The input image, if provided, is inpainted with objects described by the `gligen_boxes` and + `gligen_phrases`. Otherwise, it is treated as a generation task on a blank input image. + gligen_scheduled_sampling_beta (`float`, defaults to 0.3): + Scheduled Sampling factor from [GLIGEN: Open-Set Grounded Text-to-Image + Generation](https://huggingface.co/papers/2301.07093). Scheduled Sampling factor is only varied for + scheduled sampling during inference for improved quality and controllability. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + guidance_rescale (`float`, *optional*, defaults to 0.0): + Guidance rescale factor from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when + using zero terminal SNR. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + height, + width, + callback_steps, + gligen_phrases, + gligen_boxes, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 5.1 Prepare GLIGEN variables + max_objs = 30 + if len(gligen_boxes) > max_objs: + warnings.warn( + f"More that {max_objs} objects found. Only first {max_objs} objects will be processed.", + FutureWarning, + ) + gligen_phrases = gligen_phrases[:max_objs] + gligen_boxes = gligen_boxes[:max_objs] + # prepare batched input to the GLIGENTextBoundingboxProjection (boxes, phrases, mask) + # Get tokens for phrases from pre-trained CLIPTokenizer + tokenizer_inputs = self.tokenizer(gligen_phrases, padding=True, return_tensors="pt").to(device) + # For the token, we use the same pre-trained text encoder + # to obtain its text feature + _text_embeddings = self.text_encoder(**tokenizer_inputs).pooler_output + n_objs = len(gligen_boxes) + # For each entity, described in phrases, is denoted with a bounding box, + # we represent the location information as (xmin,ymin,xmax,ymax) + boxes = torch.zeros(max_objs, 4, device=device, dtype=self.text_encoder.dtype) + boxes[:n_objs] = torch.tensor(gligen_boxes) + text_embeddings = torch.zeros( + max_objs, self.unet.config.cross_attention_dim, device=device, dtype=self.text_encoder.dtype + ) + text_embeddings[:n_objs] = _text_embeddings + # Generate a mask for each object that is entity described by phrases + masks = torch.zeros(max_objs, device=device, dtype=self.text_encoder.dtype) + masks[:n_objs] = 1 + + repeat_batch = batch_size * num_images_per_prompt + boxes = boxes.unsqueeze(0).expand(repeat_batch, -1, -1).clone() + text_embeddings = text_embeddings.unsqueeze(0).expand(repeat_batch, -1, -1).clone() + masks = masks.unsqueeze(0).expand(repeat_batch, -1).clone() + if do_classifier_free_guidance: + repeat_batch = repeat_batch * 2 + boxes = torch.cat([boxes] * 2) + text_embeddings = torch.cat([text_embeddings] * 2) + masks = torch.cat([masks] * 2) + masks[: repeat_batch // 2] = 0 + if cross_attention_kwargs is None: + cross_attention_kwargs = {} + cross_attention_kwargs["gligen"] = {"boxes": boxes, "positive_embeddings": text_embeddings, "masks": masks} + + # Prepare latent variables for GLIGEN inpainting + if gligen_inpaint_image is not None: + # if the given input image is not of the same size as expected by VAE + # center crop and resize the input image to expected shape + if gligen_inpaint_image.size != (self.vae.sample_size, self.vae.sample_size): + gligen_inpaint_image = self.target_size_center_crop(gligen_inpaint_image, self.vae.sample_size) + # Convert a single image into a batch of images with a batch size of 1 + # The resulting shape becomes (1, C, H, W), where C is the number of channels, + # and H and W are the height and width of the image. + # scales the pixel values to a range [-1, 1] + gligen_inpaint_image = self.image_processor.preprocess(gligen_inpaint_image) + gligen_inpaint_image = gligen_inpaint_image.to(dtype=self.vae.dtype, device=self.vae.device) + # Run AutoEncoder to get corresponding latents + gligen_inpaint_latent = self.vae.encode(gligen_inpaint_image).latent_dist.sample() + gligen_inpaint_latent = self.vae.config.scaling_factor * gligen_inpaint_latent + # Generate an inpainting mask + # pixel value = 0, where the object is present (defined by bounding boxes above) + # 1, everywhere else + gligen_inpaint_mask = self.draw_inpaint_mask_from_boxes(gligen_boxes, gligen_inpaint_latent.shape[2:]) + gligen_inpaint_mask = gligen_inpaint_mask.to( + dtype=gligen_inpaint_latent.dtype, device=gligen_inpaint_latent.device + ) + gligen_inpaint_mask = gligen_inpaint_mask[None, None] + gligen_inpaint_mask_addition = torch.cat( + (gligen_inpaint_latent * gligen_inpaint_mask, gligen_inpaint_mask), dim=1 + ) + # Convert a single mask into a batch of masks with a batch size of 1 + gligen_inpaint_mask_addition = gligen_inpaint_mask_addition.expand(repeat_batch, -1, -1, -1).clone() + + num_grounding_steps = int(gligen_scheduled_sampling_beta * len(timesteps)) + self.enable_fuser(True) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # Scheduled sampling + if i == num_grounding_steps: + self.enable_fuser(False) + + if latents.shape[1] != 4: + latents = torch.randn_like(latents[:, :4]) + + if gligen_inpaint_image is not None: + gligen_inpaint_latent_with_noise = ( + self.scheduler.add_noise( + gligen_inpaint_latent, torch.randn_like(gligen_inpaint_latent), torch.tensor([t]) + ) + .expand(latents.shape[0], -1, -1, -1) + .clone() + ) + latents = gligen_inpaint_latent_with_noise * gligen_inpaint_mask + latents * ( + 1 - gligen_inpaint_mask + ) + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + if gligen_inpaint_image is not None: + latent_model_input = torch.cat((latent_model_input, gligen_inpaint_mask_addition), dim=1) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + ).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/pipeline_stable_diffusion_gligen_text_image.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/pipeline_stable_diffusion_gligen_text_image.py new file mode 100644 index 0000000000000000000000000000000000000000..05cbad139d923bdcb6c7e5a10ac14fb531bfcaa8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_gligen/pipeline_stable_diffusion_gligen_text_image.py @@ -0,0 +1,1053 @@ +# Copyright 2025 The GLIGEN Authors and HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +import warnings +from typing import Any, Callable, Dict, List, Optional, Union + +import PIL.Image +import torch +from transformers import ( + CLIPImageProcessor, + CLIPProcessor, + CLIPTextModel, + CLIPTokenizer, + CLIPVisionModelWithProjection, +) + +from ...image_processor import VaeImageProcessor +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.attention import GatedSelfAttentionDense +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion import StableDiffusionPipelineOutput +from ..stable_diffusion.clip_image_project_model import CLIPImageProjection +from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionGLIGENTextImagePipeline + >>> from diffusers.utils import load_image + + >>> # Insert objects described by image at the region defined by bounding boxes + >>> pipe = StableDiffusionGLIGENTextImagePipeline.from_pretrained( + ... "anhnct/Gligen_Inpainting_Text_Image", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> input_image = load_image( + ... "https://hf.co/datasets/huggingface/documentation-images/resolve/main/diffusers/gligen/livingroom_modern.png" + ... ) + >>> prompt = "a backpack" + >>> boxes = [[0.2676, 0.4088, 0.4773, 0.7183]] + >>> phrases = None + >>> gligen_image = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/gligen/backpack.jpeg" + ... ) + + >>> images = pipe( + ... prompt=prompt, + ... gligen_phrases=phrases, + ... gligen_inpaint_image=input_image, + ... gligen_boxes=boxes, + ... gligen_images=[gligen_image], + ... gligen_scheduled_sampling_beta=1, + ... output_type="pil", + ... num_inference_steps=50, + ... ).images + + >>> images[0].save("./gligen-inpainting-text-image-box.jpg") + + >>> # Generate an image described by the prompt and + >>> # insert objects described by text and image at the region defined by bounding boxes + >>> pipe = StableDiffusionGLIGENTextImagePipeline.from_pretrained( + ... "anhnct/Gligen_Text_Image", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> prompt = "a flower sitting on the beach" + >>> boxes = [[0.0, 0.09, 0.53, 0.76]] + >>> phrases = ["flower"] + >>> gligen_image = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/gligen/pexels-pixabay-60597.jpg" + ... ) + + >>> images = pipe( + ... prompt=prompt, + ... gligen_phrases=phrases, + ... gligen_images=[gligen_image], + ... gligen_boxes=boxes, + ... gligen_scheduled_sampling_beta=1, + ... output_type="pil", + ... num_inference_steps=50, + ... ).images + + >>> images[0].save("./gligen-generation-text-image-box.jpg") + + >>> # Generate an image described by the prompt and + >>> # transfer style described by image at the region defined by bounding boxes + >>> pipe = StableDiffusionGLIGENTextImagePipeline.from_pretrained( + ... "anhnct/Gligen_Text_Image", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> prompt = "a dragon flying on the sky" + >>> boxes = [[0.4, 0.2, 1.0, 0.8], [0.0, 1.0, 0.0, 1.0]] # Set `[0.0, 1.0, 0.0, 1.0]` for the style + + >>> gligen_image = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/landscape.png" + ... ) + + >>> gligen_placeholder = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/landscape.png" + ... ) + + >>> images = pipe( + ... prompt=prompt, + ... gligen_phrases=[ + ... "dragon", + ... "placeholder", + ... ], # Can use any text instead of `placeholder` token, because we will use mask here + ... gligen_images=[ + ... gligen_placeholder, + ... gligen_image, + ... ], # Can use any image in gligen_placeholder, because we will use mask here + ... input_phrases_mask=[1, 0], # Set 0 for the placeholder token + ... input_images_mask=[0, 1], # Set 0 for the placeholder image + ... gligen_boxes=boxes, + ... gligen_scheduled_sampling_beta=1, + ... output_type="pil", + ... num_inference_steps=50, + ... ).images + + >>> images[0].save("./gligen-generation-text-image-box-style-transfer.jpg") + ``` +""" + + +class StableDiffusionGLIGENTextImagePipeline(DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin): + r""" + Pipeline for text-to-image generation using Stable Diffusion with Grounded-Language-to-Image Generation (GLIGEN). + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.). + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + processor ([`~transformers.CLIPProcessor`]): + A `CLIPProcessor` to process reference image. + image_encoder ([`~transformers.CLIPVisionModelWithProjection`]): + Frozen image-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + image_project ([`CLIPImageProjection`]): + A `CLIPImageProjection` to project image embedding into phrases embedding space. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + _last_supported_version = "0.33.1" + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor"] + _exclude_from_cpu_offload = ["safety_checker"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + processor: CLIPProcessor, + image_encoder: CLIPVisionModelWithProjection, + image_project: CLIPImageProjection, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + image_encoder=image_encoder, + processor=processor, + image_project=image_project, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor, do_convert_rgb=True) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + gligen_images, + gligen_phrases, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if gligen_images is not None and gligen_phrases is not None: + if len(gligen_images) != len(gligen_phrases): + raise ValueError( + "`gligen_images` and `gligen_phrases` must have the same length when both are provided, but" + f" got: `gligen_images` with length {len(gligen_images)} != `gligen_phrases` with length {len(gligen_phrases)}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def enable_fuser(self, enabled=True): + for module in self.unet.modules(): + if type(module) is GatedSelfAttentionDense: + module.enabled = enabled + + def draw_inpaint_mask_from_boxes(self, boxes, size): + """ + Create an inpainting mask based on given boxes. This function generates an inpainting mask using the provided + boxes to mark regions that need to be inpainted. + """ + inpaint_mask = torch.ones(size[0], size[1]) + for box in boxes: + x0, x1 = box[0] * size[0], box[2] * size[0] + y0, y1 = box[1] * size[1], box[3] * size[1] + inpaint_mask[int(y0) : int(y1), int(x0) : int(x1)] = 0 + return inpaint_mask + + def crop(self, im, new_width, new_height): + """ + Crop the input image to the specified dimensions. + """ + width, height = im.size + left = (width - new_width) / 2 + top = (height - new_height) / 2 + right = (width + new_width) / 2 + bottom = (height + new_height) / 2 + return im.crop((left, top, right, bottom)) + + def target_size_center_crop(self, im, new_hw): + """ + Crop and resize the image to the target size while keeping the center. + """ + width, height = im.size + if width != height: + im = self.crop(im, min(height, width), min(height, width)) + return im.resize((new_hw, new_hw), PIL.Image.LANCZOS) + + def complete_mask(self, has_mask, max_objs, device): + """ + Based on the input mask corresponding value `0 or 1` for each phrases and image, mask the features + corresponding to phrases and images. + """ + mask = torch.ones(1, max_objs).type(self.text_encoder.dtype).to(device) + if has_mask is None: + return mask + + if isinstance(has_mask, int): + return mask * has_mask + else: + for idx, value in enumerate(has_mask): + mask[0, idx] = value + return mask + + def get_clip_feature(self, input, normalize_constant, device, is_image=False): + """ + Get image and phrases embedding by using CLIP pretrain model. The image embedding is transformed into the + phrases embedding space through a projection. + """ + if is_image: + if input is None: + return None + inputs = self.processor(images=[input], return_tensors="pt").to(device) + inputs["pixel_values"] = inputs["pixel_values"].to(self.image_encoder.dtype) + + outputs = self.image_encoder(**inputs) + feature = outputs.image_embeds + feature = self.image_project(feature).squeeze(0) + feature = (feature / feature.norm()) * normalize_constant + feature = feature.unsqueeze(0) + else: + if input is None: + return None + inputs = self.tokenizer(input, return_tensors="pt", padding=True).to(device) + outputs = self.text_encoder(**inputs) + feature = outputs.pooler_output + return feature + + def get_cross_attention_kwargs_with_grounded( + self, + hidden_size, + gligen_phrases, + gligen_images, + gligen_boxes, + input_phrases_mask, + input_images_mask, + repeat_batch, + normalize_constant, + max_objs, + device, + ): + """ + Prepare the cross-attention kwargs containing information about the grounded input (boxes, mask, image + embedding, phrases embedding). + """ + phrases, images = gligen_phrases, gligen_images + images = [None] * len(phrases) if images is None else images + phrases = [None] * len(images) if phrases is None else phrases + + boxes = torch.zeros(max_objs, 4, device=device, dtype=self.text_encoder.dtype) + masks = torch.zeros(max_objs, device=device, dtype=self.text_encoder.dtype) + phrases_masks = torch.zeros(max_objs, device=device, dtype=self.text_encoder.dtype) + image_masks = torch.zeros(max_objs, device=device, dtype=self.text_encoder.dtype) + phrases_embeddings = torch.zeros(max_objs, hidden_size, device=device, dtype=self.text_encoder.dtype) + image_embeddings = torch.zeros(max_objs, hidden_size, device=device, dtype=self.text_encoder.dtype) + + text_features = [] + image_features = [] + for phrase, image in zip(phrases, images): + text_features.append(self.get_clip_feature(phrase, normalize_constant, device, is_image=False)) + image_features.append(self.get_clip_feature(image, normalize_constant, device, is_image=True)) + + for idx, (box, text_feature, image_feature) in enumerate(zip(gligen_boxes, text_features, image_features)): + boxes[idx] = torch.tensor(box) + masks[idx] = 1 + if text_feature is not None: + phrases_embeddings[idx] = text_feature + phrases_masks[idx] = 1 + if image_feature is not None: + image_embeddings[idx] = image_feature + image_masks[idx] = 1 + + input_phrases_mask = self.complete_mask(input_phrases_mask, max_objs, device) + phrases_masks = phrases_masks.unsqueeze(0).repeat(repeat_batch, 1) * input_phrases_mask + input_images_mask = self.complete_mask(input_images_mask, max_objs, device) + image_masks = image_masks.unsqueeze(0).repeat(repeat_batch, 1) * input_images_mask + boxes = boxes.unsqueeze(0).repeat(repeat_batch, 1, 1) + masks = masks.unsqueeze(0).repeat(repeat_batch, 1) + phrases_embeddings = phrases_embeddings.unsqueeze(0).repeat(repeat_batch, 1, 1) + image_embeddings = image_embeddings.unsqueeze(0).repeat(repeat_batch, 1, 1) + + out = { + "boxes": boxes, + "masks": masks, + "phrases_masks": phrases_masks, + "image_masks": image_masks, + "phrases_embeddings": phrases_embeddings, + "image_embeddings": image_embeddings, + } + + return out + + def get_cross_attention_kwargs_without_grounded(self, hidden_size, repeat_batch, max_objs, device): + """ + Prepare the cross-attention kwargs without information about the grounded input (boxes, mask, image embedding, + phrases embedding) (All are zero tensor). + """ + boxes = torch.zeros(max_objs, 4, device=device, dtype=self.text_encoder.dtype) + masks = torch.zeros(max_objs, device=device, dtype=self.text_encoder.dtype) + phrases_masks = torch.zeros(max_objs, device=device, dtype=self.text_encoder.dtype) + image_masks = torch.zeros(max_objs, device=device, dtype=self.text_encoder.dtype) + phrases_embeddings = torch.zeros(max_objs, hidden_size, device=device, dtype=self.text_encoder.dtype) + image_embeddings = torch.zeros(max_objs, hidden_size, device=device, dtype=self.text_encoder.dtype) + + out = { + "boxes": boxes.unsqueeze(0).repeat(repeat_batch, 1, 1), + "masks": masks.unsqueeze(0).repeat(repeat_batch, 1), + "phrases_masks": phrases_masks.unsqueeze(0).repeat(repeat_batch, 1), + "image_masks": image_masks.unsqueeze(0).repeat(repeat_batch, 1), + "phrases_embeddings": phrases_embeddings.unsqueeze(0).repeat(repeat_batch, 1, 1), + "image_embeddings": image_embeddings.unsqueeze(0).repeat(repeat_batch, 1, 1), + } + + return out + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + gligen_scheduled_sampling_beta: float = 0.3, + gligen_phrases: List[str] = None, + gligen_images: List[PIL.Image.Image] = None, + input_phrases_mask: Union[int, List[int]] = None, + input_images_mask: Union[int, List[int]] = None, + gligen_boxes: List[List[float]] = None, + gligen_inpaint_image: Optional[PIL.Image.Image] = None, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + gligen_normalize_constant: float = 28.7, + clip_skip: int = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + gligen_phrases (`List[str]`): + The phrases to guide what to include in each of the regions defined by the corresponding + `gligen_boxes`. There should only be one phrase per bounding box. + gligen_images (`List[PIL.Image.Image]`): + The images to guide what to include in each of the regions defined by the corresponding `gligen_boxes`. + There should only be one image per bounding box + input_phrases_mask (`int` or `List[int]`): + pre phrases mask input defined by the correspongding `input_phrases_mask` + input_images_mask (`int` or `List[int]`): + pre images mask input defined by the correspongding `input_images_mask` + gligen_boxes (`List[List[float]]`): + The bounding boxes that identify rectangular regions of the image that are going to be filled with the + content described by the corresponding `gligen_phrases`. Each rectangular box is defined as a + `List[float]` of 4 elements `[xmin, ymin, xmax, ymax]` where each value is between [0,1]. + gligen_inpaint_image (`PIL.Image.Image`, *optional*): + The input image, if provided, is inpainted with objects described by the `gligen_boxes` and + `gligen_phrases`. Otherwise, it is treated as a generation task on a blank input image. + gligen_scheduled_sampling_beta (`float`, defaults to 0.3): + Scheduled Sampling factor from [GLIGEN: Open-Set Grounded Text-to-Image + Generation](https://huggingface.co/papers/2301.07093). Scheduled Sampling factor is only varied for + scheduled sampling during inference for improved quality and controllability. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + gligen_normalize_constant (`float`, *optional*, defaults to 28.7): + The normalize value of the image embedding. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + height, + width, + callback_steps, + gligen_images, + gligen_phrases, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + clip_skip=clip_skip, + ) + + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 5.1 Prepare GLIGEN variables + max_objs = 30 + if len(gligen_boxes) > max_objs: + warnings.warn( + f"More that {max_objs} objects found. Only first {max_objs} objects will be processed.", + FutureWarning, + ) + gligen_phrases = gligen_phrases[:max_objs] + gligen_boxes = gligen_boxes[:max_objs] + gligen_images = gligen_images[:max_objs] + + repeat_batch = batch_size * num_images_per_prompt + + if do_classifier_free_guidance: + repeat_batch = repeat_batch * 2 + + if cross_attention_kwargs is None: + cross_attention_kwargs = {} + + hidden_size = prompt_embeds.shape[2] + + cross_attention_kwargs["gligen"] = self.get_cross_attention_kwargs_with_grounded( + hidden_size=hidden_size, + gligen_phrases=gligen_phrases, + gligen_images=gligen_images, + gligen_boxes=gligen_boxes, + input_phrases_mask=input_phrases_mask, + input_images_mask=input_images_mask, + repeat_batch=repeat_batch, + normalize_constant=gligen_normalize_constant, + max_objs=max_objs, + device=device, + ) + + cross_attention_kwargs_without_grounded = {} + cross_attention_kwargs_without_grounded["gligen"] = self.get_cross_attention_kwargs_without_grounded( + hidden_size=hidden_size, repeat_batch=repeat_batch, max_objs=max_objs, device=device + ) + + # Prepare latent variables for GLIGEN inpainting + if gligen_inpaint_image is not None: + # if the given input image is not of the same size as expected by VAE + # center crop and resize the input image to expected shape + if gligen_inpaint_image.size != (self.vae.sample_size, self.vae.sample_size): + gligen_inpaint_image = self.target_size_center_crop(gligen_inpaint_image, self.vae.sample_size) + # Convert a single image into a batch of images with a batch size of 1 + # The resulting shape becomes (1, C, H, W), where C is the number of channels, + # and H and W are the height and width of the image. + # scales the pixel values to a range [-1, 1] + gligen_inpaint_image = self.image_processor.preprocess(gligen_inpaint_image) + gligen_inpaint_image = gligen_inpaint_image.to(dtype=self.vae.dtype, device=self.vae.device) + # Run AutoEncoder to get corresponding latents + gligen_inpaint_latent = self.vae.encode(gligen_inpaint_image).latent_dist.sample() + gligen_inpaint_latent = self.vae.config.scaling_factor * gligen_inpaint_latent + # Generate an inpainting mask + # pixel value = 0, where the object is present (defined by bounding boxes above) + # 1, everywhere else + gligen_inpaint_mask = self.draw_inpaint_mask_from_boxes(gligen_boxes, gligen_inpaint_latent.shape[2:]) + gligen_inpaint_mask = gligen_inpaint_mask.to( + dtype=gligen_inpaint_latent.dtype, device=gligen_inpaint_latent.device + ) + gligen_inpaint_mask = gligen_inpaint_mask[None, None] + gligen_inpaint_mask_addition = torch.cat( + (gligen_inpaint_latent * gligen_inpaint_mask, gligen_inpaint_mask), dim=1 + ) + # Convert a single mask into a batch of masks with a batch size of 1 + gligen_inpaint_mask_addition = gligen_inpaint_mask_addition.expand(repeat_batch, -1, -1, -1).clone() + + int(gligen_scheduled_sampling_beta * len(timesteps)) + self.enable_fuser(True) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if latents.shape[1] != 4: + latents = torch.randn_like(latents[:, :4]) + + if gligen_inpaint_image is not None: + gligen_inpaint_latent_with_noise = ( + self.scheduler.add_noise( + gligen_inpaint_latent, torch.randn_like(gligen_inpaint_latent), torch.tensor([t]) + ) + .expand(latents.shape[0], -1, -1, -1) + .clone() + ) + latents = gligen_inpaint_latent_with_noise * gligen_inpaint_mask + latents * ( + 1 - gligen_inpaint_mask + ) + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + if gligen_inpaint_image is not None: + latent_model_input = torch.cat((latent_model_input, gligen_inpaint_mask_addition), dim=1) + + # predict the noise residual with grounded information + noise_pred_with_grounding = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + ).sample + + # predict the noise residual without grounded information + noise_pred_without_grounding = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs_without_grounded, + ).sample + + # perform guidance + if do_classifier_free_guidance: + # Using noise_pred_text from noise residual with grounded information and noise_pred_uncond from noise residual without grounded information + _, noise_pred_text = noise_pred_with_grounding.chunk(2) + noise_pred_uncond, _ = noise_pred_without_grounding.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + else: + noise_pred = noise_pred_with_grounding + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..7eb5bf8c229b584c934e33806efa73a3727dbb5b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/__init__.py @@ -0,0 +1,62 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_k_diffusion_available, + is_k_diffusion_version, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not ( + is_transformers_available() + and is_torch_available() + and is_k_diffusion_available() + and is_k_diffusion_version(">=", "0.0.12") + ): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_and_k_diffusion_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_and_k_diffusion_objects)) +else: + _import_structure["pipeline_stable_diffusion_k_diffusion"] = ["StableDiffusionKDiffusionPipeline"] + _import_structure["pipeline_stable_diffusion_xl_k_diffusion"] = ["StableDiffusionXLKDiffusionPipeline"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not ( + is_transformers_available() + and is_torch_available() + and is_k_diffusion_available() + and is_k_diffusion_version(">=", "0.0.12") + ): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_and_k_diffusion_objects import * + else: + from .pipeline_stable_diffusion_k_diffusion import StableDiffusionKDiffusionPipeline + from .pipeline_stable_diffusion_xl_k_diffusion import StableDiffusionXLKDiffusionPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/pipeline_stable_diffusion_k_diffusion.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/pipeline_stable_diffusion_k_diffusion.py new file mode 100644 index 0000000000000000000000000000000000000000..feebd6adf8f88010b9bb19ee927779daeefd1892 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/pipeline_stable_diffusion_k_diffusion.py @@ -0,0 +1,689 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import importlib +import inspect +from typing import Callable, List, Optional, Union + +import torch +from k_diffusion.external import CompVisDenoiser, CompVisVDenoiser +from k_diffusion.sampling import BrownianTreeNoiseSampler, get_sigmas_karras +from transformers import ( + CLIPImageProcessor, + CLIPTextModel, + CLIPTokenizer, + CLIPTokenizerFast, +) + +from ...image_processor import VaeImageProcessor +from ...loaders import ( + StableDiffusionLoraLoaderMixin, + TextualInversionLoaderMixin, +) +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers, LMSDiscreteScheduler +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + logging, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion import StableDiffusionPipelineOutput, StableDiffusionSafetyChecker + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +class ModelWrapper: + def __init__(self, model, alphas_cumprod): + self.model = model + self.alphas_cumprod = alphas_cumprod + + def apply_model(self, *args, **kwargs): + if len(args) == 3: + encoder_hidden_states = args[-1] + args = args[:2] + if kwargs.get("cond", None) is not None: + encoder_hidden_states = kwargs.pop("cond") + return self.model(*args, encoder_hidden_states=encoder_hidden_states, **kwargs).sample + + +class StableDiffusionKDiffusionPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, +): + r""" + Pipeline for text-to-image generation using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + > [!WARNING] > This is an experimental pipeline and is likely to change in the future. + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please, refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + details. + feature_extractor ([`CLIPImageProcessor`]): + Model that extracts features from generated images to be used as inputs for the `safety_checker`. + """ + + _last_supported_version = "0.33.1" + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor"] + _exclude_from_cpu_offload = ["safety_checker"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: Union[CLIPTokenizer, CLIPTokenizerFast], + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + logger.info( + f"{self.__class__} is an experimental pipeline and is likely to change in the future. We recommend to use" + " this pipeline for fast experimentation / iteration if needed, but advice to rely on existing pipelines" + " as defined in https://huggingface.co/docs/diffusers/api/schedulers#implemented-schedulers for" + " production settings." + ) + + # get correct sigmas from LMS + scheduler = LMSDiscreteScheduler.from_config(scheduler.config) + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.register_to_config(requires_safety_checker=requires_safety_checker) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + model = ModelWrapper(unet, scheduler.alphas_cumprod) + if scheduler.config.prediction_type == "v_prediction": + self.k_diffusion_model = CompVisVDenoiser(model) + else: + self.k_diffusion_model = CompVisDenoiser(model) + + def set_scheduler(self, scheduler_type: str): + library = importlib.import_module("k_diffusion") + sampling = getattr(library, "sampling") + try: + self.sampler = getattr(sampling, scheduler_type) + except Exception: + valid_samplers = [] + for s in dir(sampling): + if "sample_" in s: + valid_samplers.append(s) + + raise ValueError(f"Invalid scheduler type {scheduler_type}. Please choose one of {valid_samplers}.") + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + return latents + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + use_karras_sigmas: Optional[bool] = False, + noise_sampler_seed: Optional[int] = None, + clip_skip: int = None, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds`. instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` + is less than `1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Use karras sigmas. For example, specifying `sample_dpmpp_2m` to `set_scheduler` will be equivalent to + `DPM++2M` in stable-diffusion-webui. On top of that, setting this option to True will make it `DPM++2M + Karras`. + noise_sampler_seed (`int`, *optional*, defaults to `None`): + The random seed to use for the noise sampler. If `None`, a random seed will be generated. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. + When returning a tuple, the first element is a list with the generated images, and the second element is a + list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" + (nsfw) content, according to the `safety_checker`. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, height, width, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = True + if guidance_scale <= 1.0: + raise ValueError("has to use guidance_scale") + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=prompt_embeds.device) + + # 5. Prepare sigmas + if use_karras_sigmas: + sigma_min: float = self.k_diffusion_model.sigmas[0].item() + sigma_max: float = self.k_diffusion_model.sigmas[-1].item() + sigmas = get_sigmas_karras(n=num_inference_steps, sigma_min=sigma_min, sigma_max=sigma_max) + else: + sigmas = self.scheduler.sigmas + sigmas = sigmas.to(device) + sigmas = sigmas.to(prompt_embeds.dtype) + + # 6. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + latents = latents * sigmas[0] + self.k_diffusion_model.sigmas = self.k_diffusion_model.sigmas.to(latents.device) + self.k_diffusion_model.log_sigmas = self.k_diffusion_model.log_sigmas.to(latents.device) + + # 7. Define model function + def model_fn(x, t): + latent_model_input = torch.cat([x] * 2) + t = torch.cat([t] * 2) + + noise_pred = self.k_diffusion_model(latent_model_input, t, cond=prompt_embeds) + + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + return noise_pred + + # 8. Run k-diffusion solver + sampler_kwargs = {} + + if "noise_sampler" in inspect.signature(self.sampler).parameters: + min_sigma, max_sigma = sigmas[sigmas > 0].min(), sigmas.max() + noise_sampler = BrownianTreeNoiseSampler(latents, min_sigma, max_sigma, noise_sampler_seed) + sampler_kwargs["noise_sampler"] = noise_sampler + + if "generator" in inspect.signature(self.sampler).parameters: + sampler_kwargs["generator"] = generator + + latents = self.sampler(model_fn, latents, sigmas, **sampler_kwargs) + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/pipeline_stable_diffusion_xl_k_diffusion.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/pipeline_stable_diffusion_xl_k_diffusion.py new file mode 100644 index 0000000000000000000000000000000000000000..766ca37d8142c300a1f3645a591afd0682378d01 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_k_diffusion/pipeline_stable_diffusion_xl_k_diffusion.py @@ -0,0 +1,903 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import importlib +import inspect +from typing import List, Optional, Tuple, Union + +import torch +from k_diffusion.external import CompVisDenoiser, CompVisVDenoiser +from k_diffusion.sampling import BrownianTreeNoiseSampler, get_sigmas_karras +from transformers import ( + CLIPTextModel, + CLIPTextModelWithProjection, + CLIPTokenizer, +) + +from ...image_processor import VaeImageProcessor +from ...loaders import ( + FromSingleFileMixin, + IPAdapterMixin, + StableDiffusionXLLoraLoaderMixin, + TextualInversionLoaderMixin, +) +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.attention_processor import ( + AttnProcessor2_0, + FusedAttnProcessor2_0, + XFormersAttnProcessor, +) +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers, LMSDiscreteScheduler +from ...utils import ( + USE_PEFT_BACKEND, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion_xl.pipeline_output import StableDiffusionXLPipelineOutput + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionXLKDiffusionPipeline + + >>> pipe = StableDiffusionXLKDiffusionPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-xl-base-1.0", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + >>> pipe.set_scheduler("sample_dpmpp_2m_sde") + + >>> prompt = "a photo of an astronaut riding a horse on mars" + >>> image = pipe(prompt).images[0] + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion_k_diffusion.pipeline_stable_diffusion_k_diffusion.ModelWrapper +class ModelWrapper: + def __init__(self, model, alphas_cumprod): + self.model = model + self.alphas_cumprod = alphas_cumprod + + def apply_model(self, *args, **kwargs): + if len(args) == 3: + encoder_hidden_states = args[-1] + args = args[:2] + if kwargs.get("cond", None) is not None: + encoder_hidden_states = kwargs.pop("cond") + return self.model(*args, encoder_hidden_states=encoder_hidden_states, **kwargs).sample + + +class StableDiffusionXLKDiffusionPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + FromSingleFileMixin, + StableDiffusionXLLoraLoaderMixin, + TextualInversionLoaderMixin, + IPAdapterMixin, +): + _last_supported_version = "0.33.1" + + r""" + Pipeline for text-to-image generation using Stable Diffusion XL and k-diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion XL uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + text_encoder_2 ([` CLIPTextModelWithProjection`]): + Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`): + Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of + `stabilityai/stable-diffusion-xl-base-1-0`. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->unet->vae" + _optional_components = [ + "tokenizer", + "tokenizer_2", + "text_encoder", + "text_encoder_2", + "feature_extractor", + ] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + tokenizer_2: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + force_zeros_for_empty_prompt: bool = True, + ): + super().__init__() + + # get correct sigmas from LMS + scheduler = LMSDiscreteScheduler.from_config(scheduler.config) + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + unet=unet, + scheduler=scheduler, + ) + self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + self.default_sample_size = ( + self.unet.config.sample_size + if hasattr(self, "unet") and self.unet is not None and hasattr(self.unet.config, "sample_size") + else 128 + ) + + model = ModelWrapper(unet, scheduler.alphas_cumprod) + if scheduler.config.prediction_type == "v_prediction": + self.k_diffusion_model = CompVisVDenoiser(model) + else: + self.k_diffusion_model = CompVisDenoiser(model) + + # Copied from diffusers.pipelines.stable_diffusion_k_diffusion.pipeline_stable_diffusion_k_diffusion.StableDiffusionKDiffusionPipeline.set_scheduler + def set_scheduler(self, scheduler_type: str): + library = importlib.import_module("k_diffusion") + sampling = getattr(library, "sampling") + try: + self.sampler = getattr(sampling, scheduler_type) + except Exception: + valid_samplers = [] + for s in dir(sampling): + if "sample_" in s: + valid_samplers.append(s) + + raise ValueError(f"Invalid scheduler type {scheduler_type}. Please choose one of {valid_samplers}.") + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.encode_prompt + def encode_prompt( + self, + prompt: str, + prompt_2: Optional[str] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[str] = None, + negative_prompt_2: Optional[str] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionXLLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale) + else: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # Define tokenizers and text encoders + tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] + text_encoders = ( + [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] + ) + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + # textual inversion: process multi-vector tokens if necessary + prompt_embeds_list = [] + prompts = [prompt, prompt_2] + for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, tokenizer) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if pooled_prompt_embeds is None and prompt_embeds[0].ndim == 2: + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + # "2" because SDXL always indexes from the penultimate layer. + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds_list.append(prompt_embeds) + + prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) + + # get unconditional embeddings for classifier free guidance + zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt + if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: + negative_prompt_embeds = torch.zeros_like(prompt_embeds) + negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) + elif do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + + uncond_tokens: List[str] + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = [negative_prompt, negative_prompt_2] + + negative_prompt_embeds_list = [] + for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = tokenizer( + negative_prompt, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + negative_prompt_embeds = text_encoder( + uncond_input.input_ids.to(device), + output_hidden_states=True, + ) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if negative_pooled_prompt_embeds is None and negative_prompt_embeds[0].ndim == 2: + negative_pooled_prompt_embeds = negative_prompt_embeds[0] + negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] + + negative_prompt_embeds_list.append(negative_prompt_embeds) + + negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) + + if self.text_encoder_2 is not None: + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + prompt_embeds = prompt_embeds.to(dtype=self.unet.dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + if self.text_encoder_2 is not None: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.unet.dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + if do_classifier_free_guidance: + negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + def check_inputs( + self, + prompt, + prompt_2, + height, + width, + negative_prompt=None, + negative_prompt_2=None, + prompt_embeds=None, + negative_prompt_embeds=None, + pooled_prompt_embeds=None, + negative_pooled_prompt_embeds=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." + ) + + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + return latents + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline._get_add_time_ids + def _get_add_time_ids( + self, original_size, crops_coords_top_left, target_size, dtype, text_encoder_projection_dim=None + ): + add_time_ids = list(original_size + crops_coords_top_left + target_size) + + passed_add_embed_dim = ( + self.unet.config.addition_time_embed_dim * len(add_time_ids) + text_encoder_projection_dim + ) + expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features + + if expected_add_embed_dim != passed_add_embed_dim: + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." + ) + + add_time_ids = torch.tensor([add_time_ids], dtype=dtype) + return add_time_ids + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.upcast_vae + def upcast_vae(self): + dtype = self.vae.dtype + self.vae.to(dtype=torch.float32) + use_torch_2_0_or_xformers = isinstance( + self.vae.decoder.mid_block.attentions[0].processor, + ( + AttnProcessor2_0, + XFormersAttnProcessor, + FusedAttnProcessor2_0, + ), + ) + # if xformers or torch_2_0 is used attention block does not need + # to be in float32 which can save lots of memory + if use_torch_2_0_or_xformers: + self.vae.post_quant_conv.to(dtype) + self.vae.decoder.conv_in.to(dtype) + self.vae.decoder.mid_block.to(dtype) + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 5.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + original_size: Optional[Tuple[int, int]] = None, + crops_coords_top_left: Tuple[int, int] = (0, 0), + target_size: Optional[Tuple[int, int]] = None, + negative_original_size: Optional[Tuple[int, int]] = None, + negative_crops_coords_top_left: Tuple[int, int] = (0, 0), + negative_target_size: Optional[Tuple[int, int]] = None, + use_karras_sigmas: Optional[bool] = False, + noise_sampler_seed: Optional[int] = None, + clip_skip: Optional[int] = None, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. This is set to 1024 by default for the best results. + Anything below 512 pixels won't work well for + [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) + and checkpoints that are not specifically fine-tuned on low resolutions. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. This is set to 1024 by default for the best results. + Anything below 512 pixels won't work well for + [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) + and checkpoints that are not specifically fine-tuned on low resolutions. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 5.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] instead + of a plain tuple. + original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. + `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as + explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position + `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting + `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + For most cases, `target_size` should be set to the desired height and width of the generated image. If + not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in + section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + negative_original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a specific image resolution. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a target image resolution. It should be as same + as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + + Examples: + + Returns: + [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + + # 0. Default height and width to unet + height = height or self.default_sample_size * self.vae_scale_factor + width = width or self.default_sample_size * self.vae_scale_factor + + original_size = original_size or (height, width) + target_size = target_size or (height, width) + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + prompt_2, + height, + width, + negative_prompt, + negative_prompt_2, + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) + + if guidance_scale <= 1.0: + raise ValueError("has to use guidance_scale") + + self._guidance_scale = guidance_scale + self._clip_skip = clip_skip + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3. Encode input prompt + lora_scale = None + + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + lora_scale=lora_scale, + clip_skip=self.clip_skip, + ) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=prompt_embeds.device) + + # 5. Prepare sigmas + if use_karras_sigmas: + sigma_min: float = self.k_diffusion_model.sigmas[0].item() + sigma_max: float = self.k_diffusion_model.sigmas[-1].item() + sigmas = get_sigmas_karras(n=num_inference_steps, sigma_min=sigma_min, sigma_max=sigma_max) + else: + sigmas = self.scheduler.sigmas + sigmas = sigmas.to(dtype=prompt_embeds.dtype, device=device) + + # 6. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + latents = latents * sigmas[0] + + self.k_diffusion_model.sigmas = self.k_diffusion_model.sigmas.to(latents.device) + self.k_diffusion_model.log_sigmas = self.k_diffusion_model.log_sigmas.to(latents.device) + + # 7. Prepare added time ids & embeddings + add_text_embeds = pooled_prompt_embeds + if self.text_encoder_2 is None: + text_encoder_projection_dim = int(pooled_prompt_embeds.shape[-1]) + else: + text_encoder_projection_dim = self.text_encoder_2.config.projection_dim + + add_time_ids = self._get_add_time_ids( + original_size, + crops_coords_top_left, + target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + if negative_original_size is not None and negative_target_size is not None: + negative_add_time_ids = self._get_add_time_ids( + negative_original_size, + negative_crops_coords_top_left, + negative_target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + else: + negative_add_time_ids = add_time_ids + + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) + add_time_ids = torch.cat([negative_add_time_ids, add_time_ids], dim=0) + + prompt_embeds = prompt_embeds.to(device) + add_text_embeds = add_text_embeds.to(device) + add_time_ids = add_time_ids.to(device).repeat(batch_size * num_images_per_prompt, 1) + + added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} + + # 8. Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + # 9. Define model function + def model_fn(x, t): + latent_model_input = torch.cat([x] * 2) + t = torch.cat([t] * 2) + + noise_pred = self.k_diffusion_model( + latent_model_input, + t, + cond=prompt_embeds, + timestep_cond=timestep_cond, + added_cond_kwargs=added_cond_kwargs, + ) + + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + return noise_pred + + # 10. Run k-diffusion solver + sampler_kwargs = {} + + if "noise_sampler" in inspect.signature(self.sampler).parameters: + min_sigma, max_sigma = sigmas[sigmas > 0].min(), sigmas.max() + noise_sampler = BrownianTreeNoiseSampler(latents, min_sigma, max_sigma, noise_sampler_seed) + sampler_kwargs["noise_sampler"] = noise_sampler + + if "generator" in inspect.signature(self.sampler).parameters: + sampler_kwargs["generator"] = generator + + latents = self.sampler(model_fn, latents, sigmas, **sampler_kwargs) + + if not output_type == "latent": + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + + if needs_upcasting: + self.upcast_vae() + latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) + + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + else: + image = latents + + if not output_type == "latent": + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusionXLPipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_ldm3d/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_ldm3d/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..dae2affddd1fd5952f454ed9cee906277dcceb16 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_ldm3d/__init__.py @@ -0,0 +1,48 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_ldm3d"] = ["StableDiffusionLDM3DPipeline"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_stable_diffusion_ldm3d import StableDiffusionLDM3DPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_ldm3d/pipeline_stable_diffusion_ldm3d.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_ldm3d/pipeline_stable_diffusion_ldm3d.py new file mode 100644 index 0000000000000000000000000000000000000000..c32121c88c9bb173f567311518db2ae05d3a1da6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_ldm3d/pipeline_stable_diffusion_ldm3d.py @@ -0,0 +1,1040 @@ +# Copyright 2025 The Intel Labs Team Authors and the HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from dataclasses import dataclass +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...image_processor import PipelineImageInput, VaeImageProcessorLDM3D +from ...loaders import FromSingleFileMixin, IPAdapterMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + BaseOutput, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```python + >>> from diffusers import StableDiffusionLDM3DPipeline + + >>> pipe = StableDiffusionLDM3DPipeline.from_pretrained("Intel/ldm3d-4c") + >>> pipe = pipe.to("cuda") + + >>> prompt = "a photo of an astronaut riding a horse on mars" + >>> output = pipe(prompt) + >>> rgb_image, depth_image = output.rgb, output.depth + >>> rgb_image[0].save("astronaut_ldm3d_rgb.jpg") + >>> depth_image[0].save("astronaut_ldm3d_depth.png") + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + r""" + Rescales `noise_cfg` tensor based on `guidance_rescale` to improve image quality and fix overexposure. Based on + Section 3.4 from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). + + Args: + noise_cfg (`torch.Tensor`): + The predicted noise tensor for the guided diffusion process. + noise_pred_text (`torch.Tensor`): + The predicted noise tensor for the text-guided diffusion process. + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescale factor applied to the noise predictions. + + Returns: + noise_cfg (`torch.Tensor`): The rescaled noise prediction tensor. + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +@dataclass +class LDM3DPipelineOutput(BaseOutput): + """ + Output class for Stable Diffusion pipelines. + + Args: + rgb (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or NumPy array of shape `(batch_size, height, width, + num_channels)`. + depth (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or NumPy array of shape `(batch_size, height, width, + num_channels)`. + nsfw_content_detected (`List[bool]`) + List indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content or + `None` if safety checking could not be performed. + """ + + rgb: Union[List[PIL.Image.Image], np.ndarray] + depth: Union[List[PIL.Image.Image], np.ndarray] + nsfw_content_detected: Optional[List[bool]] + + +class StableDiffusionLDM3DPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + IPAdapterMixin, + StableDiffusionLoraLoaderMixin, + FromSingleFileMixin, +): + _last_supported_version = "0.33.1" + + r""" + Pipeline for text-to-image and 3D generation using LDM3D. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "image_encoder"] + _exclude_from_cpu_offload = ["safety_checker"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + image_encoder: Optional[CLIPVisionModelWithProjection], + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessorLDM3D(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + rgb_feature_extractor_input = feature_extractor_input[0] + safety_checker_input = self.feature_extractor(rgb_feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.check_inputs + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def guidance_rescale(self): + return self._guidance_rescale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 49, + timesteps: List[int] = None, + sigmas: List[float] = None, + guidance_scale: float = 5.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 5.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): + Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider using `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider using `callback_on_step_end`", + ) + + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + height, + width, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + ) + + self._guidance_scale = guidance_scale + self._guidance_rescale = guidance_rescale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + self.do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 6.1 Add image embeds for IP-Adapter + added_cond_kwargs = {"image_embeds": image_embeds} if ip_adapter_image is not None else None + + # 6.2 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + # 7. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + if self.do_classifier_free_guidance and self.guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=self.guidance_rescale) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + rgb, depth = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return ((rgb, depth), has_nsfw_concept) + + return LDM3DPipelineOutput(rgb=rgb, depth=depth, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_panorama/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_panorama/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..f7572db7236cd6bcfd7dd032abcb29fd5f67cf1c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_panorama/__init__.py @@ -0,0 +1,48 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_panorama"] = ["StableDiffusionPanoramaPipeline"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_stable_diffusion_panorama import StableDiffusionPanoramaPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_panorama/pipeline_stable_diffusion_panorama.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_panorama/pipeline_stable_diffusion_panorama.py new file mode 100644 index 0000000000000000000000000000000000000000..295095947a121243d5b415c1fbaa3d4b2d324ea2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_panorama/pipeline_stable_diffusion_panorama.py @@ -0,0 +1,1195 @@ +# Copyright 2025 MultiDiffusion Authors and The HuggingFace Team. All rights reserved." +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import copy +import inspect +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import torch +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import IPAdapterMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import DDIMScheduler +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion import StableDiffusionPipelineOutput +from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionPanoramaPipeline, DDIMScheduler + + >>> model_ckpt = "stabilityai/stable-diffusion-2-base" + >>> scheduler = DDIMScheduler.from_pretrained(model_ckpt, subfolder="scheduler") + >>> pipe = StableDiffusionPanoramaPipeline.from_pretrained( + ... model_ckpt, scheduler=scheduler, torch_dtype=torch.float16 + ... ) + + >>> pipe = pipe.to("cuda") + + >>> prompt = "a photo of the dolomites" + >>> image = pipe(prompt).images[0] + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + r""" + Rescales `noise_cfg` tensor based on `guidance_rescale` to improve image quality and fix overexposure. Based on + Section 3.4 from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). + + Args: + noise_cfg (`torch.Tensor`): + The predicted noise tensor for the guided diffusion process. + noise_pred_text (`torch.Tensor`): + The predicted noise tensor for the text-guided diffusion process. + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescale factor applied to the noise predictions. + + Returns: + noise_cfg (`torch.Tensor`): The rescaled noise prediction tensor. + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionPanoramaPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, + IPAdapterMixin, +): + _last_supported_version = "0.33.1" + + r""" + Pipeline for text-to-image generation using MultiDiffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "image_encoder"] + _exclude_from_cpu_offload = ["safety_checker"] + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: DDIMScheduler, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + image_encoder: Optional[CLIPVisionModelWithProjection] = None, + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + def decode_latents_with_padding(self, latents: torch.Tensor, padding: int = 8) -> torch.Tensor: + """ + Decode the given latents with padding for circular inference. + + Args: + latents (torch.Tensor): The input latents to decode. + padding (int, optional): The number of latents to add on each side for padding. Defaults to 8. + + Returns: + torch.Tensor: The decoded image with padding removed. + + Notes: + - The padding is added to remove boundary artifacts and improve the output quality. + - This would slightly increase the memory usage. + - The padding pixels are then removed from the decoded image. + + """ + latents = 1 / self.vae.config.scaling_factor * latents + latents_left = latents[..., :padding] + latents_right = latents[..., -padding:] + latents = torch.cat((latents_right, latents, latents_left), axis=-1) + image = self.vae.decode(latents, return_dict=False)[0] + padding_pix = self.vae_scale_factor * padding + image = image[..., padding_pix:-padding_pix] + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.check_inputs + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + def get_views( + self, + panorama_height: int, + panorama_width: int, + window_size: int = 64, + stride: int = 8, + circular_padding: bool = False, + ) -> List[Tuple[int, int, int, int]]: + """ + Generates a list of views based on the given parameters. Here, we define the mappings F_i (see Eq. 7 in the + MultiDiffusion paper https://huggingface.co/papers/2302.08113). If panorama's height/width < window_size, + num_blocks of height/width should return 1. + + Args: + panorama_height (int): The height of the panorama. + panorama_width (int): The width of the panorama. + window_size (int, optional): The size of the window. Defaults to 64. + stride (int, optional): The stride value. Defaults to 8. + circular_padding (bool, optional): Whether to apply circular padding. Defaults to False. + + Returns: + List[Tuple[int, int, int, int]]: A list of tuples representing the views. Each tuple contains four integers + representing the start and end coordinates of the window in the panorama. + + """ + panorama_height /= 8 + panorama_width /= 8 + num_blocks_height = (panorama_height - window_size) // stride + 1 if panorama_height > window_size else 1 + if circular_padding: + num_blocks_width = panorama_width // stride if panorama_width > window_size else 1 + else: + num_blocks_width = (panorama_width - window_size) // stride + 1 if panorama_width > window_size else 1 + total_num_blocks = int(num_blocks_height * num_blocks_width) + views = [] + for i in range(total_num_blocks): + h_start = int((i // num_blocks_width) * stride) + h_end = h_start + window_size + w_start = int((i % num_blocks_width) * stride) + w_end = w_start + window_size + views.append((h_start, h_end, w_start, w_end)) + return views + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def guidance_rescale(self): + return self._guidance_rescale + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def clip_skip(self): + return self._clip_skip + + @property + def do_classifier_free_guidance(self): + return False + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = 512, + width: Optional[int] = 2048, + num_inference_steps: int = 50, + timesteps: List[int] = None, + guidance_scale: float = 7.5, + view_batch_size: int = 1, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + circular_padding: bool = False, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs: Any, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to 512): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to 2048): + The width in pixels of the generated image. The width is kept high because the pipeline is supposed + generate panorama-like images. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + The timesteps at which to generate the images. If not specified, then the default timestep spacing + strategy of the scheduler is used. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + view_batch_size (`int`, *optional*, defaults to 1): + The batch size to denoise split views. For some GPUs with high performance, higher view batch size can + speedup the generation and increase the VRAM usage. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): + Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescaling factor for the guidance embeddings. A value of 0.0 means no rescaling is applied. + circular_padding (`bool`, *optional*, defaults to `False`): + If set to `True`, circular padding is applied to ensure there are no stitching artifacts. Circular + padding allows the model to seamlessly generate a transition from the rightmost part of the image to + the leftmost part, maintaining consistency in a 360-degree sense. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List[str]`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider using `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider using `callback_on_step_end`", + ) + + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + height, + width, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + ) + + self._guidance_scale = guidance_scale + self._guidance_rescale = guidance_rescale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps(self.scheduler, num_inference_steps, device, timesteps) + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Define panorama grid and initialize views for synthesis. + # prepare batch grid + views = self.get_views(height, width, circular_padding=circular_padding) + views_batch = [views[i : i + view_batch_size] for i in range(0, len(views), view_batch_size)] + views_scheduler_status = [copy.deepcopy(self.scheduler.__dict__)] * len(views_batch) + count = torch.zeros_like(latents) + value = torch.zeros_like(latents) + + # 7. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7.1 Add image embeds for IP-Adapter + added_cond_kwargs = ( + {"image_embeds": image_embeds} + if ip_adapter_image is not None or ip_adapter_image_embeds is not None + else None + ) + + # 7.2 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + # 8. Denoising loop + # Each denoising step also includes refinement of the latents with respect to the + # views. + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + count.zero_() + value.zero_() + + # generate views + # Here, we iterate through different spatial crops of the latents and denoise them. These + # denoised (latent) crops are then averaged to produce the final latent + # for the current timestep via MultiDiffusion. Please see Sec. 4.1 in the + # MultiDiffusion paper for more details: https://huggingface.co/papers/2302.08113 + # Batch views denoise + for j, batch_view in enumerate(views_batch): + vb_size = len(batch_view) + # get the latents corresponding to the current view coordinates + if circular_padding: + latents_for_view = [] + for h_start, h_end, w_start, w_end in batch_view: + if w_end > latents.shape[3]: + # Add circular horizontal padding + latent_view = torch.cat( + ( + latents[:, :, h_start:h_end, w_start:], + latents[:, :, h_start:h_end, : w_end - latents.shape[3]], + ), + axis=-1, + ) + else: + latent_view = latents[:, :, h_start:h_end, w_start:w_end] + latents_for_view.append(latent_view) + latents_for_view = torch.cat(latents_for_view) + else: + latents_for_view = torch.cat( + [ + latents[:, :, h_start:h_end, w_start:w_end] + for h_start, h_end, w_start, w_end in batch_view + ] + ) + + # rematch block's scheduler status + self.scheduler.__dict__.update(views_scheduler_status[j]) + + # expand the latents if we are doing classifier free guidance + latent_model_input = ( + latents_for_view.repeat_interleave(2, dim=0) + if do_classifier_free_guidance + else latents_for_view + ) + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # repeat prompt_embeds for batch + prompt_embeds_input = torch.cat([prompt_embeds] * vb_size) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds_input, + timestep_cond=timestep_cond, + cross_attention_kwargs=cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + ).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred[::2], noise_pred[1::2] + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + if self.do_classifier_free_guidance and self.guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg( + noise_pred, noise_pred_text, guidance_rescale=self.guidance_rescale + ) + + # compute the previous noisy sample x_t -> x_t-1 + latents_denoised_batch = self.scheduler.step( + noise_pred, t, latents_for_view, **extra_step_kwargs + ).prev_sample + + # save views scheduler status after sample + views_scheduler_status[j] = copy.deepcopy(self.scheduler.__dict__) + + # extract value from batch + for latents_view_denoised, (h_start, h_end, w_start, w_end) in zip( + latents_denoised_batch.chunk(vb_size), batch_view + ): + if circular_padding and w_end > latents.shape[3]: + # Case for circular padding + value[:, :, h_start:h_end, w_start:] += latents_view_denoised[ + :, :, h_start:h_end, : latents.shape[3] - w_start + ] + value[:, :, h_start:h_end, : w_end - latents.shape[3]] += latents_view_denoised[ + :, :, h_start:h_end, latents.shape[3] - w_start : + ] + count[:, :, h_start:h_end, w_start:] += 1 + count[:, :, h_start:h_end, : w_end - latents.shape[3]] += 1 + else: + value[:, :, h_start:h_end, w_start:w_end] += latents_view_denoised + count[:, :, h_start:h_end, w_start:w_end] += 1 + + # take the MultiDiffusion step. Eq. 5 in MultiDiffusion paper: https://huggingface.co/papers/2302.08113 + latents = torch.where(count > 0, value / count, value) + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if output_type != "latent": + if circular_padding: + image = self.decode_latents_with_padding(latents) + else: + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..b432b9418c46257913d81c5bf56edc0f1fa74ed1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/__init__.py @@ -0,0 +1,99 @@ +from dataclasses import dataclass +from enum import Enum +from typing import TYPE_CHECKING, List, Optional, Union + +import numpy as np +import PIL +from PIL import Image + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + BaseOutput, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +@dataclass +class SafetyConfig(object): + WEAK = { + "sld_warmup_steps": 15, + "sld_guidance_scale": 20, + "sld_threshold": 0.0, + "sld_momentum_scale": 0.0, + "sld_mom_beta": 0.0, + } + MEDIUM = { + "sld_warmup_steps": 10, + "sld_guidance_scale": 1000, + "sld_threshold": 0.01, + "sld_momentum_scale": 0.3, + "sld_mom_beta": 0.4, + } + STRONG = { + "sld_warmup_steps": 7, + "sld_guidance_scale": 2000, + "sld_threshold": 0.025, + "sld_momentum_scale": 0.5, + "sld_mom_beta": 0.7, + } + MAX = { + "sld_warmup_steps": 0, + "sld_guidance_scale": 5000, + "sld_threshold": 1.0, + "sld_momentum_scale": 0.5, + "sld_mom_beta": 0.7, + } + + +_dummy_objects = {} +_additional_imports = {} +_import_structure = {} + +_additional_imports.update({"SafetyConfig": SafetyConfig}) + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure.update( + { + "pipeline_output": ["StableDiffusionSafePipelineOutput"], + "pipeline_stable_diffusion_safe": ["StableDiffusionPipelineSafe"], + "safety_checker": ["StableDiffusionSafetyChecker"], + } + ) + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_output import StableDiffusionSafePipelineOutput + from .pipeline_stable_diffusion_safe import StableDiffusionPipelineSafe + from .safety_checker import SafeStableDiffusionSafetyChecker + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) + for name, value in _additional_imports.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..69a064d6638df556d3007f59daf7e767ec7c298b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/pipeline_output.py @@ -0,0 +1,34 @@ +from dataclasses import dataclass +from typing import List, Optional, Union + +import numpy as np +import PIL.Image + +from ...utils import ( + BaseOutput, +) + + +@dataclass +class StableDiffusionSafePipelineOutput(BaseOutput): + """ + Output class for Safe Stable Diffusion pipelines. + + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or numpy array of shape `(batch_size, height, width, + num_channels)`. PIL images or numpy array present the denoised images of the diffusion pipeline. + nsfw_content_detected (`List[bool]`) + List of flags denoting whether the corresponding generated image likely represents "not-safe-for-work" + (nsfw) content, or `None` if safety checking could not be performed. + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images that were flagged by the safety checker any may contain "not-safe-for-work" + (nsfw) content, or `None` if no safety check was performed or no images were flagged. + applied_safety_concept (`str`) + The safety concept that was applied for safety guidance, or `None` if safety guidance was disabled + """ + + images: Union[List[PIL.Image.Image], np.ndarray] + nsfw_content_detected: Optional[List[bool]] + unsafe_images: Optional[Union[List[PIL.Image.Image], np.ndarray]] + applied_safety_concept: Optional[str] diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/pipeline_stable_diffusion_safe.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/pipeline_stable_diffusion_safe.py new file mode 100644 index 0000000000000000000000000000000000000000..d334107b07036aaaed2960cbaca887fa1584d780 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/pipeline_stable_diffusion_safe.py @@ -0,0 +1,785 @@ +import inspect +import warnings +from typing import Callable, List, Optional, Union + +import numpy as np +import torch +from packaging import version +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...configuration_utils import FrozenDict +from ...image_processor import PipelineImageInput +from ...loaders import IPAdapterMixin +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import deprecate, is_torch_xla_available, logging +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from . import StableDiffusionSafePipelineOutput +from .safety_checker import SafeStableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +class StableDiffusionPipelineSafe(DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin, IPAdapterMixin): + _last_supported_version = "0.33.1" + + r""" + Pipeline based on the [`StableDiffusionPipeline`] for text-to-image generation using Safe Latent Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "image_encoder"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: SafeStableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + image_encoder: Optional[CLIPVisionModelWithProjection] = None, + requires_safety_checker: bool = True, + ): + super().__init__() + safety_concept: Optional[str] = ( + "an image showing hate, harassment, violence, suffering, humiliation, harm, suicide, sexual, nudity," + " bodily fluids, blood, obscene gestures, illegal activity, drug use, theft, vandalism, weapons, child" + " abuse, brutality, cruelty" + ) + + if scheduler is not None and getattr(scheduler.config, "steps_offset", 1) != 1: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" + f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " + "to update the config accordingly as leaving `steps_offset` might led to incorrect results" + " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," + " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" + " file" + ) + deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["steps_offset"] = 1 + scheduler._internal_dict = FrozenDict(new_config) + + if scheduler is not None and getattr(scheduler.config, "clip_sample", False) is True: + deprecation_message = ( + f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`." + " `clip_sample` should be set to False in the configuration file. Please make sure to update the" + " config accordingly as not setting `clip_sample` in the config might lead to incorrect results in" + " future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very" + " nice if you could open a Pull request for the `scheduler/scheduler_config.json` file" + ) + deprecate("clip_sample not set", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(scheduler.config) + new_config["clip_sample"] = False + scheduler._internal_dict = FrozenDict(new_config) + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + is_unet_version_less_0_9_0 = ( + unet is not None + and hasattr(unet.config, "_diffusers_version") + and version.parse(version.parse(unet.config._diffusers_version).base_version) < version.parse("0.9.0.dev0") + ) + is_unet_sample_size_less_64 = ( + unet is not None and hasattr(unet.config, "sample_size") and unet.config.sample_size < 64 + ) + if is_unet_version_less_0_9_0 and is_unet_sample_size_less_64: + deprecation_message = ( + "The configuration file of the unet has set the default `sample_size` to smaller than" + " 64 which seems highly unlikely .If you're checkpoint is a fine-tuned version of any of the" + " following: \n- CompVis/stable-diffusion-v1-4 \n- CompVis/stable-diffusion-v1-3 \n-" + " CompVis/stable-diffusion-v1-2 \n- CompVis/stable-diffusion-v1-1 \n- stable-diffusion-v1-5/stable-diffusion-v1-5" + " \n- stable-diffusion-v1-5/stable-diffusion-inpainting \n you should change 'sample_size' to 64 in the" + " configuration file. Please make sure to update the config accordingly as leaving `sample_size=32`" + " in the config might lead to incorrect results in future versions. If you have downloaded this" + " checkpoint from the Hugging Face Hub, it would be very nice if you could open a Pull request for" + " the `unet/config.json` file" + ) + deprecate("sample_size<64", "1.0.0", deprecation_message, standard_warn=False) + new_config = dict(unet.config) + new_config["sample_size"] = 64 + unet._internal_dict = FrozenDict(new_config) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self._safety_text_concept = safety_concept + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.register_to_config(requires_safety_checker=requires_safety_checker) + + @property + def safety_concept(self): + r""" + Getter method for the safety concept used with SLD + + Returns: + `str`: The text describing the safety concept + """ + return self._safety_text_concept + + @safety_concept.setter + def safety_concept(self, concept): + r""" + Setter method for the safety concept used with SLD + + Args: + concept (`str`): + The text of the new safety concept + """ + self._safety_text_concept = concept + + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + enable_safety_guidance, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + """ + batch_size = len(prompt) if isinstance(prompt, list) else 1 + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="max_length", return_tensors="pt").input_ids + + if not torch.equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer.batch_decode(untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + prompt_embeds = self.text_encoder( + text_input_ids.to(device), + attention_mask=attention_mask, + ) + prompt_embeds = prompt_embeds[0] + + # duplicate text embeddings for each generation per prompt, using mps friendly method + bs_embed, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + max_length = text_input_ids.shape[-1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + # Encode the safety concept text + if enable_safety_guidance: + safety_concept_input = self.tokenizer( + [self._safety_text_concept], + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + safety_embeddings = self.text_encoder(safety_concept_input.input_ids.to(self.device))[0] + + # duplicate safety embeddings for each generation per prompt, using mps friendly method + seq_len = safety_embeddings.shape[1] + safety_embeddings = safety_embeddings.repeat(batch_size, num_images_per_prompt, 1) + safety_embeddings = safety_embeddings.view(batch_size * num_images_per_prompt, seq_len, -1) + + # For classifier free guidance + sld, we need to do three forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing three forward passes + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds, safety_embeddings]) + + else: + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + return prompt_embeds + + def run_safety_checker(self, image, device, dtype, enable_safety_guidance): + if self.safety_checker is not None: + images = image.copy() + safety_checker_input = self.feature_extractor(self.numpy_to_pil(image), return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + flagged_images = np.zeros((2, *image.shape[1:])) + if any(has_nsfw_concept): + logger.warning( + "Potential NSFW content was detected in one or more images. A black image will be returned" + " instead." + f"{'You may look at this images in the `unsafe_images` variable of the output at your own discretion.' if enable_safety_guidance else 'Try again with a different prompt and/or seed.'}" + ) + for idx, has_nsfw_concept in enumerate(has_nsfw_concept): + if has_nsfw_concept: + flagged_images[idx] = images[idx] + image[idx] = np.zeros(image[idx].shape) # black image + else: + has_nsfw_concept = None + flagged_images = None + return image, has_nsfw_concept, flagged_images + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion_k_diffusion.pipeline_stable_diffusion_k_diffusion.StableDiffusionKDiffusionPipeline.check_inputs + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def perform_safety_guidance( + self, + enable_safety_guidance, + safety_momentum, + noise_guidance, + noise_pred_out, + i, + sld_guidance_scale, + sld_warmup_steps, + sld_threshold, + sld_momentum_scale, + sld_mom_beta, + ): + # Perform SLD guidance + if enable_safety_guidance: + if safety_momentum is None: + safety_momentum = torch.zeros_like(noise_guidance) + noise_pred_text, noise_pred_uncond = noise_pred_out[0], noise_pred_out[1] + noise_pred_safety_concept = noise_pred_out[2] + + # Equation 6 + scale = torch.clamp(torch.abs((noise_pred_text - noise_pred_safety_concept)) * sld_guidance_scale, max=1.0) + + # Equation 6 + safety_concept_scale = torch.where( + (noise_pred_text - noise_pred_safety_concept) >= sld_threshold, torch.zeros_like(scale), scale + ) + + # Equation 4 + noise_guidance_safety = torch.mul((noise_pred_safety_concept - noise_pred_uncond), safety_concept_scale) + + # Equation 7 + noise_guidance_safety = noise_guidance_safety + sld_momentum_scale * safety_momentum + + # Equation 8 + safety_momentum = sld_mom_beta * safety_momentum + (1 - sld_mom_beta) * noise_guidance_safety + + if i >= sld_warmup_steps: # Warmup + # Equation 3 + noise_guidance = noise_guidance - noise_guidance_safety + return noise_guidance, safety_momentum + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]], + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + sld_guidance_scale: Optional[float] = 1000, + sld_warmup_steps: Optional[int] = 10, + sld_threshold: Optional[float] = 0.01, + sld_momentum_scale: Optional[float] = 0.3, + sld_mom_beta: Optional[float] = 0.4, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + ip_adapter_image: (`PipelineImageInput`, *optional*): + Optional image input to work with IP Adapters. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + sld_guidance_scale (`float`, *optional*, defaults to 1000): + If `sld_guidance_scale < 1`, safety guidance is disabled. + sld_warmup_steps (`int`, *optional*, defaults to 10): + Number of warmup steps for safety guidance. SLD is only be applied for diffusion steps greater than + `sld_warmup_steps`. + sld_threshold (`float`, *optional*, defaults to 0.01): + Threshold that separates the hyperplane between appropriate and inappropriate images. + sld_momentum_scale (`float`, *optional*, defaults to 0.3): + Scale of the SLD momentum to be added to the safety guidance at each diffusion step. If set to 0.0, + momentum is disabled. Momentum is built up during warmup for diffusion steps smaller than + `sld_warmup_steps`. + sld_mom_beta (`float`, *optional*, defaults to 0.4): + Defines how safety guidance momentum builds up. `sld_mom_beta` indicates how much of the previous + momentum is kept. Momentum is built up during warmup for diffusion steps smaller than + `sld_warmup_steps`. + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + + Examples: + + ```py + import torch + from diffusers import StableDiffusionPipelineSafe + from diffusers.pipelines.stable_diffusion_safe import SafetyConfig + + pipeline = StableDiffusionPipelineSafe.from_pretrained( + "AIML-TUDA/stable-diffusion-safe", torch_dtype=torch.float16 + ).to("cuda") + prompt = "the four horsewomen of the apocalypse, painting by tom of finland, gaston bussiere, craig mullins, j. c. leyendecker" + image = pipeline(prompt=prompt, **SafetyConfig.MEDIUM).images[0] + ``` + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs(prompt, height, width, callback_steps) + + # 2. Define call parameters + batch_size = 1 if isinstance(prompt, str) else len(prompt) + device = self._execution_device + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + enable_safety_guidance = sld_guidance_scale > 1.0 and do_classifier_free_guidance + if not enable_safety_guidance: + warnings.warn("Safety checker disabled!") + + if ip_adapter_image is not None: + output_hidden_state = False if isinstance(self.unet.encoder_hid_proj, ImageProjection) else True + image_embeds, negative_image_embeds = self.encode_image( + ip_adapter_image, device, num_images_per_prompt, output_hidden_state + ) + if do_classifier_free_guidance: + if enable_safety_guidance: + image_embeds = torch.cat([negative_image_embeds, image_embeds, image_embeds]) + else: + image_embeds = torch.cat([negative_image_embeds, image_embeds]) + + # 3. Encode input prompt + prompt_embeds = self._encode_prompt( + prompt, device, num_images_per_prompt, do_classifier_free_guidance, negative_prompt, enable_safety_guidance + ) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 6.1 Add image embeds for IP-Adapter + added_cond_kwargs = {"image_embeds": image_embeds} if ip_adapter_image is not None else None + + safety_momentum = None + + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = ( + torch.cat([latents] * (3 if enable_safety_guidance else 2)) + if do_classifier_free_guidance + else latents + ) + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, t, encoder_hidden_states=prompt_embeds, added_cond_kwargs=added_cond_kwargs + ).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_out = noise_pred.chunk((3 if enable_safety_guidance else 2)) + noise_pred_uncond, noise_pred_text = noise_pred_out[0], noise_pred_out[1] + + # default classifier free guidance + noise_guidance = noise_pred_text - noise_pred_uncond + + # Perform SLD guidance + if enable_safety_guidance: + if safety_momentum is None: + safety_momentum = torch.zeros_like(noise_guidance) + noise_pred_safety_concept = noise_pred_out[2] + + # Equation 6 + scale = torch.clamp( + torch.abs((noise_pred_text - noise_pred_safety_concept)) * sld_guidance_scale, max=1.0 + ) + + # Equation 6 + safety_concept_scale = torch.where( + (noise_pred_text - noise_pred_safety_concept) >= sld_threshold, + torch.zeros_like(scale), + scale, + ) + + # Equation 4 + noise_guidance_safety = torch.mul( + (noise_pred_safety_concept - noise_pred_uncond), safety_concept_scale + ) + + # Equation 7 + noise_guidance_safety = noise_guidance_safety + sld_momentum_scale * safety_momentum + + # Equation 8 + safety_momentum = sld_mom_beta * safety_momentum + (1 - sld_mom_beta) * noise_guidance_safety + + if i >= sld_warmup_steps: # Warmup + # Equation 3 + noise_guidance = noise_guidance - noise_guidance_safety + + noise_pred = noise_pred_uncond + guidance_scale * noise_guidance + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # 8. Post-processing + image = self.decode_latents(latents) + + # 9. Run safety checker + image, has_nsfw_concept, flagged_images = self.run_safety_checker( + image, device, prompt_embeds.dtype, enable_safety_guidance + ) + + # 10. Convert to PIL + if output_type == "pil": + image = self.numpy_to_pil(image) + if flagged_images is not None: + flagged_images = self.numpy_to_pil(flagged_images) + + if not return_dict: + return ( + image, + has_nsfw_concept, + self._safety_text_concept if enable_safety_guidance else None, + flagged_images, + ) + + return StableDiffusionSafePipelineOutput( + images=image, + nsfw_content_detected=has_nsfw_concept, + applied_safety_concept=self._safety_text_concept if enable_safety_guidance else None, + unsafe_images=flagged_images, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/safety_checker.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/safety_checker.py new file mode 100644 index 0000000000000000000000000000000000000000..1f6ad5f2a348c3a0aed208011e40e507fe0195e5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_safe/safety_checker.py @@ -0,0 +1,109 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import torch +import torch.nn as nn +from transformers import CLIPConfig, CLIPVisionModel, PreTrainedModel + +from ...utils import logging + + +logger = logging.get_logger(__name__) + + +def cosine_distance(image_embeds, text_embeds): + normalized_image_embeds = nn.functional.normalize(image_embeds) + normalized_text_embeds = nn.functional.normalize(text_embeds) + return torch.mm(normalized_image_embeds, normalized_text_embeds.t()) + + +class SafeStableDiffusionSafetyChecker(PreTrainedModel): + config_class = CLIPConfig + + _no_split_modules = ["CLIPEncoderLayer"] + + def __init__(self, config: CLIPConfig): + super().__init__(config) + + self.vision_model = CLIPVisionModel(config.vision_config) + self.visual_projection = nn.Linear(config.vision_config.hidden_size, config.projection_dim, bias=False) + + self.concept_embeds = nn.Parameter(torch.ones(17, config.projection_dim), requires_grad=False) + self.special_care_embeds = nn.Parameter(torch.ones(3, config.projection_dim), requires_grad=False) + + self.concept_embeds_weights = nn.Parameter(torch.ones(17), requires_grad=False) + self.special_care_embeds_weights = nn.Parameter(torch.ones(3), requires_grad=False) + + @torch.no_grad() + def forward(self, clip_input, images): + pooled_output = self.vision_model(clip_input)[1] # pooled_output + image_embeds = self.visual_projection(pooled_output) + + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + special_cos_dist = cosine_distance(image_embeds, self.special_care_embeds).cpu().float().numpy() + cos_dist = cosine_distance(image_embeds, self.concept_embeds).cpu().float().numpy() + + result = [] + batch_size = image_embeds.shape[0] + for i in range(batch_size): + result_img = {"special_scores": {}, "special_care": [], "concept_scores": {}, "bad_concepts": []} + + # increase this value to create a stronger `nfsw` filter + # at the cost of increasing the possibility of filtering benign images + adjustment = 0.0 + + for concept_idx in range(len(special_cos_dist[0])): + concept_cos = special_cos_dist[i][concept_idx] + concept_threshold = self.special_care_embeds_weights[concept_idx].item() + result_img["special_scores"][concept_idx] = round(concept_cos - concept_threshold + adjustment, 3) + if result_img["special_scores"][concept_idx] > 0: + result_img["special_care"].append({concept_idx, result_img["special_scores"][concept_idx]}) + adjustment = 0.01 + + for concept_idx in range(len(cos_dist[0])): + concept_cos = cos_dist[i][concept_idx] + concept_threshold = self.concept_embeds_weights[concept_idx].item() + result_img["concept_scores"][concept_idx] = round(concept_cos - concept_threshold + adjustment, 3) + if result_img["concept_scores"][concept_idx] > 0: + result_img["bad_concepts"].append(concept_idx) + + result.append(result_img) + + has_nsfw_concepts = [len(res["bad_concepts"]) > 0 for res in result] + + return images, has_nsfw_concepts + + @torch.no_grad() + def forward_onnx(self, clip_input: torch.Tensor, images: torch.Tensor): + pooled_output = self.vision_model(clip_input)[1] # pooled_output + image_embeds = self.visual_projection(pooled_output) + + special_cos_dist = cosine_distance(image_embeds, self.special_care_embeds) + cos_dist = cosine_distance(image_embeds, self.concept_embeds) + + # increase this value to create a stronger `nsfw` filter + # at the cost of increasing the possibility of filtering benign images + adjustment = 0.0 + + special_scores = special_cos_dist - self.special_care_embeds_weights + adjustment + # special_scores = special_scores.round(decimals=3) + special_care = torch.any(special_scores > 0, dim=1) + special_adjustment = special_care * 0.01 + special_adjustment = special_adjustment.unsqueeze(1).expand(-1, cos_dist.shape[1]) + + concept_scores = (cos_dist - self.concept_embeds_weights) + special_adjustment + # concept_scores = concept_scores.round(decimals=3) + has_nsfw_concepts = torch.any(concept_scores > 0, dim=1) + + return images, has_nsfw_concepts diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_sag/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_sag/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..378e0e57817f58a0a28afed5d6110f6ee3effb3a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_sag/__init__.py @@ -0,0 +1,48 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_sag"] = ["StableDiffusionSAGPipeline"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_stable_diffusion_sag import StableDiffusionSAGPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_sag/pipeline_stable_diffusion_sag.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_sag/pipeline_stable_diffusion_sag.py new file mode 100644 index 0000000000000000000000000000000000000000..48add535a81da083f65b2fb9843ee72bf5577819 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_sag/pipeline_stable_diffusion_sag.py @@ -0,0 +1,970 @@ +# Copyright 2025 Susung Hong and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import torch +import torch.nn.functional as F +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection + +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import IPAdapterMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion import StableDiffusionPipelineOutput +from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionSAGPipeline + + >>> pipe = StableDiffusionSAGPipeline.from_pretrained( + ... "stable-diffusion-v1-5/stable-diffusion-v1-5", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> prompt = "a photo of an astronaut riding a horse on mars" + >>> image = pipe(prompt, sag_scale=0.75).images[0] + ``` +""" + + +# processes and stores attention probabilities +class CrossAttnStoreProcessor: + def __init__(self): + self.attention_probs = None + + def __call__( + self, + attn, + hidden_states, + encoder_hidden_states=None, + attention_mask=None, + ): + batch_size, sequence_length, _ = hidden_states.shape + attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size) + query = attn.to_q(hidden_states) + + if encoder_hidden_states is None: + encoder_hidden_states = hidden_states + elif attn.norm_cross: + encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states) + + key = attn.to_k(encoder_hidden_states) + value = attn.to_v(encoder_hidden_states) + + query = attn.head_to_batch_dim(query) + key = attn.head_to_batch_dim(key) + value = attn.head_to_batch_dim(value) + + self.attention_probs = attn.get_attention_scores(query, key, attention_mask) + hidden_states = torch.bmm(self.attention_probs, value) + hidden_states = attn.batch_to_head_dim(hidden_states) + + # linear proj + hidden_states = attn.to_out[0](hidden_states) + # dropout + hidden_states = attn.to_out[1](hidden_states) + + return hidden_states + + +# Modified to get self-attention guidance scale in this paper (https://huggingface.co/papers/2210.00939) as an input +class StableDiffusionSAGPipeline( + DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin, TextualInversionLoaderMixin, IPAdapterMixin +): + _last_supported_version = "0.33.1" + + r""" + Pipeline for text-to-image generation using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + text_encoder ([`~transformers.CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + unet ([`UNet2DConditionModel`]): + A `UNet2DConditionModel` to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images; used as inputs to the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + _optional_components = ["safety_checker", "feature_extractor", "image_encoder"] + _exclude_from_cpu_offload = ["safety_checker"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + image_encoder: Optional[CLIPVisionModelWithProjection] = None, + requires_safety_checker: bool = True, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + image_embeds = [] + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + single_image_embeds = torch.stack([single_image_embeds] * num_images_per_prompt, dim=0) + single_negative_image_embeds = torch.stack( + [single_negative_image_embeds] * num_images_per_prompt, dim=0 + ) + + if do_classifier_free_guidance: + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds]) + single_image_embeds = single_image_embeds.to(device) + + image_embeds.append(single_image_embeds) + else: + image_embeds = ip_adapter_image_embeds + return image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion_k_diffusion.pipeline_stable_diffusion_k_diffusion.StableDiffusionKDiffusionPipeline.check_inputs + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + sag_scale: float = 0.75, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: Optional[int] = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: Optional[int] = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + sag_scale (`float`, *optional*, defaults to 0.75): + Chosen between [0, 1.0] for better quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): + Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. If not provided, embeddings are computed from the + `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] is returned, + otherwise a `tuple` is returned where the first element is a list with the generated images and the + second element is a list of `bool`s indicating whether the corresponding generated image contains + "not-safe-for-work" (nsfw) content. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, height, width, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + # and `sag_scale` is` `s` of equation (16) + # of the self-attention guidance paper: https://huggingface.co/papers/2210.00939 + # `sag_scale = 0` means no self-attention guidance + do_self_attention_guidance = sag_scale > 0.0 + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + ip_adapter_image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + do_classifier_free_guidance, + ) + + if do_classifier_free_guidance: + image_embeds = [] + negative_image_embeds = [] + for tmp_image_embeds in ip_adapter_image_embeds: + single_negative_image_embeds, single_image_embeds = tmp_image_embeds.chunk(2) + image_embeds.append(single_image_embeds) + negative_image_embeds.append(single_negative_image_embeds) + else: + image_embeds = ip_adapter_image_embeds + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + if timesteps.dtype not in [torch.int16, torch.int32, torch.int64]: + raise ValueError( + f"{self.__class__.__name__} does not support using a scheduler of type {self.scheduler.__class__.__name__}. Please make sure to use one of 'DDIMScheduler, PNDMScheduler, DDPMScheduler, DEISMultistepScheduler, UniPCMultistepScheduler, DPMSolverMultistepScheduler, DPMSolverSinglestepScheduler'." + ) + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 6.1 Add image embeds for IP-Adapter + added_cond_kwargs = ( + {"image_embeds": image_embeds} + if ip_adapter_image is not None or ip_adapter_image_embeds is not None + else None + ) + + if do_classifier_free_guidance: + added_uncond_kwargs = ( + {"image_embeds": negative_image_embeds} + if ip_adapter_image is not None or ip_adapter_image_embeds is not None + else None + ) + + # 7. Denoising loop + original_attn_proc = self.unet.attn_processors + store_processor = CrossAttnStoreProcessor() + self.unet.mid_block.attentions[0].transformer_blocks[0].attn1.processor = store_processor + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + + map_size = None + + def get_map_size(module, input, output): + nonlocal map_size + map_size = output[0].shape[-2:] + + with self.unet.mid_block.attentions[0].register_forward_hook(get_map_size): + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + ).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # perform self-attention guidance with the stored self-attention map + if do_self_attention_guidance: + # classifier-free guidance produces two chunks of attention map + # and we only use unconditional one according to equation (25) + # in https://huggingface.co/papers/2210.00939 + if do_classifier_free_guidance: + # DDIM-like prediction of x0 + pred_x0 = self.pred_x0(latents, noise_pred_uncond, t) + # get the stored attention maps + uncond_attn, cond_attn = store_processor.attention_probs.chunk(2) + # self-attention-based degrading of latents + degraded_latents = self.sag_masking( + pred_x0, uncond_attn, map_size, t, self.pred_epsilon(latents, noise_pred_uncond, t) + ) + uncond_emb, _ = prompt_embeds.chunk(2) + # forward and give guidance + degraded_pred = self.unet( + degraded_latents, + t, + encoder_hidden_states=uncond_emb, + added_cond_kwargs=added_uncond_kwargs, + ).sample + noise_pred += sag_scale * (noise_pred_uncond - degraded_pred) + else: + # DDIM-like prediction of x0 + pred_x0 = self.pred_x0(latents, noise_pred, t) + # get the stored attention maps + cond_attn = store_processor.attention_probs + # self-attention-based degrading of latents + degraded_latents = self.sag_masking( + pred_x0, cond_attn, map_size, t, self.pred_epsilon(latents, noise_pred, t) + ) + # forward and give guidance + degraded_pred = self.unet( + degraded_latents, + t, + encoder_hidden_states=prompt_embeds, + added_cond_kwargs=added_cond_kwargs, + ).sample + noise_pred += sag_scale * (noise_pred - degraded_pred) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + else: + image = latents + has_nsfw_concept = None + + if has_nsfw_concept is None: + do_denormalize = [True] * image.shape[0] + else: + do_denormalize = [not has_nsfw for has_nsfw in has_nsfw_concept] + + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + self.maybe_free_model_hooks() + # make sure to set the original attention processors back + self.unet.set_attn_processor(original_attn_proc) + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) + + def sag_masking(self, original_latents, attn_map, map_size, t, eps): + # Same masking process as in SAG paper: https://huggingface.co/papers/2210.00939 + bh, hw1, hw2 = attn_map.shape + b, latent_channel, latent_h, latent_w = original_latents.shape + h = self.unet.config.attention_head_dim + if isinstance(h, list): + h = h[-1] + + # Produce attention mask + attn_map = attn_map.reshape(b, h, hw1, hw2) + attn_mask = attn_map.mean(1, keepdim=False).sum(1, keepdim=False) > 1.0 + attn_mask = ( + attn_mask.reshape(b, map_size[0], map_size[1]) + .unsqueeze(1) + .repeat(1, latent_channel, 1, 1) + .type(attn_map.dtype) + ) + attn_mask = F.interpolate(attn_mask, (latent_h, latent_w)) + + # Blur according to the self-attention mask + degraded_latents = gaussian_blur_2d(original_latents, kernel_size=9, sigma=1.0) + degraded_latents = degraded_latents * attn_mask + original_latents * (1 - attn_mask) + + # Noise it again to match the noise level + degraded_latents = self.scheduler.add_noise(degraded_latents, noise=eps, timesteps=t[None]) + + return degraded_latents + + # Modified from diffusers.schedulers.scheduling_ddim.DDIMScheduler.step + # Note: there are some schedulers that clip or do not return x_0 (PNDMScheduler, DDIMScheduler, etc.) + def pred_x0(self, sample, model_output, timestep): + alpha_prod_t = self.scheduler.alphas_cumprod[timestep].to(sample.device) + + beta_prod_t = 1 - alpha_prod_t + if self.scheduler.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + elif self.scheduler.config.prediction_type == "sample": + pred_original_sample = model_output + elif self.scheduler.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + # predict V + model_output = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {self.scheduler.config.prediction_type} must be one of `epsilon`, `sample`," + " or `v_prediction`" + ) + + return pred_original_sample + + def pred_epsilon(self, sample, model_output, timestep): + alpha_prod_t = self.scheduler.alphas_cumprod[timestep] + + beta_prod_t = 1 - alpha_prod_t + if self.scheduler.config.prediction_type == "epsilon": + pred_eps = model_output + elif self.scheduler.config.prediction_type == "sample": + pred_eps = (sample - (alpha_prod_t**0.5) * model_output) / (beta_prod_t**0.5) + elif self.scheduler.config.prediction_type == "v_prediction": + pred_eps = (beta_prod_t**0.5) * sample + (alpha_prod_t**0.5) * model_output + else: + raise ValueError( + f"prediction_type given as {self.scheduler.config.prediction_type} must be one of `epsilon`, `sample`," + " or `v_prediction`" + ) + + return pred_eps + + +# Gaussian blur +def gaussian_blur_2d(img, kernel_size, sigma): + ksize_half = (kernel_size - 1) * 0.5 + + x = torch.linspace(-ksize_half, ksize_half, steps=kernel_size) + + pdf = torch.exp(-0.5 * (x / sigma).pow(2)) + + x_kernel = pdf / pdf.sum() + x_kernel = x_kernel.to(device=img.device, dtype=img.dtype) + + kernel2d = torch.mm(x_kernel[:, None], x_kernel[None, :]) + kernel2d = kernel2d.expand(img.shape[-3], 1, kernel2d.shape[0], kernel2d.shape[1]) + + padding = [kernel_size // 2, kernel_size // 2, kernel_size // 2, kernel_size // 2] + + img = F.pad(img, padding, mode="reflect") + img = F.conv2d(img, kernel2d, groups=img.shape[-3]) + + return img diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..8088fbcfceba205b9b908613f4ca3fdc579120e8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/__init__.py @@ -0,0 +1,76 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_flax_available, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_additional_imports = {} +_import_structure = {"pipeline_output": ["StableDiffusionXLPipelineOutput"]} + +if is_transformers_available() and is_flax_available(): + _import_structure["pipeline_output"].extend(["FlaxStableDiffusionXLPipelineOutput"]) +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_xl"] = ["StableDiffusionXLPipeline"] + _import_structure["pipeline_stable_diffusion_xl_img2img"] = ["StableDiffusionXLImg2ImgPipeline"] + _import_structure["pipeline_stable_diffusion_xl_inpaint"] = ["StableDiffusionXLInpaintPipeline"] + _import_structure["pipeline_stable_diffusion_xl_instruct_pix2pix"] = ["StableDiffusionXLInstructPix2PixPipeline"] + +if is_transformers_available() and is_flax_available(): + from ...schedulers.scheduling_pndm_flax import PNDMSchedulerState + + _additional_imports.update({"PNDMSchedulerState": PNDMSchedulerState}) + _import_structure["pipeline_flax_stable_diffusion_xl"] = ["FlaxStableDiffusionXLPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * # noqa F403 + else: + from .pipeline_stable_diffusion_xl import StableDiffusionXLPipeline + from .pipeline_stable_diffusion_xl_img2img import StableDiffusionXLImg2ImgPipeline + from .pipeline_stable_diffusion_xl_inpaint import StableDiffusionXLInpaintPipeline + from .pipeline_stable_diffusion_xl_instruct_pix2pix import StableDiffusionXLInstructPix2PixPipeline + + try: + if not (is_transformers_available() and is_flax_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_flax_objects import * + else: + from .pipeline_flax_stable_diffusion_xl import ( + FlaxStableDiffusionXLPipeline, + ) + from .pipeline_output import FlaxStableDiffusionXLPipelineOutput + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) + for name, value in _additional_imports.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_flax_stable_diffusion_xl.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_flax_stable_diffusion_xl.py new file mode 100644 index 0000000000000000000000000000000000000000..3227fd9a08a47306eeb0804f301d16cdd1f4ce5f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_flax_stable_diffusion_xl.py @@ -0,0 +1,308 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from functools import partial +from typing import Dict, List, Optional, Union + +import jax +import jax.numpy as jnp +from flax.core.frozen_dict import FrozenDict +from transformers import CLIPTokenizer, FlaxCLIPTextModel + +from diffusers.utils import logging + +from ...models import FlaxAutoencoderKL, FlaxUNet2DConditionModel +from ...schedulers import ( + FlaxDDIMScheduler, + FlaxDPMSolverMultistepScheduler, + FlaxLMSDiscreteScheduler, + FlaxPNDMScheduler, +) +from ..pipeline_flax_utils import FlaxDiffusionPipeline +from .pipeline_output import FlaxStableDiffusionXLPipelineOutput + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +# Set to True to use python for loop instead of jax.fori_loop for easier debugging +DEBUG = False + + +class FlaxStableDiffusionXLPipeline(FlaxDiffusionPipeline): + def __init__( + self, + text_encoder: FlaxCLIPTextModel, + text_encoder_2: FlaxCLIPTextModel, + vae: FlaxAutoencoderKL, + tokenizer: CLIPTokenizer, + tokenizer_2: CLIPTokenizer, + unet: FlaxUNet2DConditionModel, + scheduler: Union[ + FlaxDDIMScheduler, FlaxPNDMScheduler, FlaxLMSDiscreteScheduler, FlaxDPMSolverMultistepScheduler + ], + dtype: jnp.dtype = jnp.float32, + ): + super().__init__() + self.dtype = dtype + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + unet=unet, + scheduler=scheduler, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + + def prepare_inputs(self, prompt: Union[str, List[str]]): + if not isinstance(prompt, (str, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + # Assume we have the two encoders + inputs = [] + for tokenizer in [self.tokenizer, self.tokenizer_2]: + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="np", + ) + inputs.append(text_inputs.input_ids) + inputs = jnp.stack(inputs, axis=1) + return inputs + + def __call__( + self, + prompt_ids: jax.Array, + params: Union[Dict, FrozenDict], + prng_seed: jax.Array, + num_inference_steps: int = 50, + guidance_scale: Union[float, jax.Array] = 7.5, + height: Optional[int] = None, + width: Optional[int] = None, + latents: jnp.array = None, + neg_prompt_ids: jnp.array = None, + return_dict: bool = True, + output_type: str = None, + jit: bool = False, + ): + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + if isinstance(guidance_scale, float) and jit: + # Convert to a tensor so each device gets a copy. + guidance_scale = jnp.array([guidance_scale] * prompt_ids.shape[0]) + guidance_scale = guidance_scale[:, None] + + return_latents = output_type == "latent" + + if jit: + images = _p_generate( + self, + prompt_ids, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + return_latents, + ) + else: + images = self._generate( + prompt_ids, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + return_latents, + ) + + if not return_dict: + return (images,) + + return FlaxStableDiffusionXLPipelineOutput(images=images) + + def get_embeddings(self, prompt_ids: jnp.array, params): + # We assume we have the two encoders + + # bs, encoder_input, seq_length + te_1_inputs = prompt_ids[:, 0, :] + te_2_inputs = prompt_ids[:, 1, :] + + prompt_embeds = self.text_encoder(te_1_inputs, params=params["text_encoder"], output_hidden_states=True) + prompt_embeds = prompt_embeds["hidden_states"][-2] + prompt_embeds_2_out = self.text_encoder_2( + te_2_inputs, params=params["text_encoder_2"], output_hidden_states=True + ) + prompt_embeds_2 = prompt_embeds_2_out["hidden_states"][-2] + text_embeds = prompt_embeds_2_out["text_embeds"] + prompt_embeds = jnp.concatenate([prompt_embeds, prompt_embeds_2], axis=-1) + return prompt_embeds, text_embeds + + def _get_add_time_ids(self, original_size, crops_coords_top_left, target_size, bs, dtype): + add_time_ids = list(original_size + crops_coords_top_left + target_size) + add_time_ids = jnp.array([add_time_ids] * bs, dtype=dtype) + return add_time_ids + + def _generate( + self, + prompt_ids: jnp.array, + params: Union[Dict, FrozenDict], + prng_seed: jax.Array, + num_inference_steps: int, + height: int, + width: int, + guidance_scale: float, + latents: Optional[jnp.array] = None, + neg_prompt_ids: Optional[jnp.array] = None, + return_latents=False, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + # Encode input prompt + prompt_embeds, pooled_embeds = self.get_embeddings(prompt_ids, params) + + # Get unconditional embeddings + batch_size = prompt_embeds.shape[0] + if neg_prompt_ids is None: + neg_prompt_embeds = jnp.zeros_like(prompt_embeds) + negative_pooled_embeds = jnp.zeros_like(pooled_embeds) + else: + neg_prompt_embeds, negative_pooled_embeds = self.get_embeddings(neg_prompt_ids, params) + + add_time_ids = self._get_add_time_ids( + (height, width), (0, 0), (height, width), prompt_embeds.shape[0], dtype=prompt_embeds.dtype + ) + + prompt_embeds = jnp.concatenate([neg_prompt_embeds, prompt_embeds], axis=0) # (2, 77, 2048) + add_text_embeds = jnp.concatenate([negative_pooled_embeds, pooled_embeds], axis=0) + add_time_ids = jnp.concatenate([add_time_ids, add_time_ids], axis=0) + + # Ensure model output will be `float32` before going into the scheduler + guidance_scale = jnp.array([guidance_scale], dtype=jnp.float32) + + # Create random latents + latents_shape = ( + batch_size, + self.unet.config.in_channels, + height // self.vae_scale_factor, + width // self.vae_scale_factor, + ) + if latents is None: + latents = jax.random.normal(prng_seed, shape=latents_shape, dtype=jnp.float32) + else: + if latents.shape != latents_shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {latents_shape}") + + # Prepare scheduler state + scheduler_state = self.scheduler.set_timesteps( + params["scheduler"], num_inference_steps=num_inference_steps, shape=latents.shape + ) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * scheduler_state.init_noise_sigma + + added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} + + # Denoising loop + def loop_body(step, args): + latents, scheduler_state = args + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + latents_input = jnp.concatenate([latents] * 2) + + t = jnp.array(scheduler_state.timesteps, dtype=jnp.int32)[step] + timestep = jnp.broadcast_to(t, latents_input.shape[0]) + + latents_input = self.scheduler.scale_model_input(scheduler_state, latents_input, t) + + # predict the noise residual + noise_pred = self.unet.apply( + {"params": params["unet"]}, + jnp.array(latents_input), + jnp.array(timestep, dtype=jnp.int32), + encoder_hidden_states=prompt_embeds, + added_cond_kwargs=added_cond_kwargs, + ).sample + # perform guidance + noise_pred_uncond, noise_prediction_text = jnp.split(noise_pred, 2, axis=0) + noise_pred = noise_pred_uncond + guidance_scale * (noise_prediction_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents, scheduler_state = self.scheduler.step(scheduler_state, noise_pred, t, latents).to_tuple() + return latents, scheduler_state + + if DEBUG: + # run with python for loop + for i in range(num_inference_steps): + latents, scheduler_state = loop_body(i, (latents, scheduler_state)) + else: + latents, _ = jax.lax.fori_loop(0, num_inference_steps, loop_body, (latents, scheduler_state)) + + if return_latents: + return latents + + # Decode latents + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.apply({"params": params["vae"]}, latents, method=self.vae.decode).sample + + image = (image / 2 + 0.5).clip(0, 1).transpose(0, 2, 3, 1) + return image + + +# Static argnums are pipe, num_inference_steps, height, width, return_latents. A change would trigger recompilation. +# Non-static args are (sharded) input tensors mapped over their first dimension (hence, `0`). +@partial( + jax.pmap, + in_axes=(None, 0, 0, 0, None, None, None, 0, 0, 0, None), + static_broadcasted_argnums=(0, 4, 5, 6, 10), +) +def _p_generate( + pipe, + prompt_ids, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + return_latents, +): + return pipe._generate( + prompt_ids, + params, + prng_seed, + num_inference_steps, + height, + width, + guidance_scale, + latents, + neg_prompt_ids, + return_latents, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..0783f44486ee1448bd15529f745af381ee7fa69f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_output.py @@ -0,0 +1,37 @@ +from dataclasses import dataclass +from typing import List, Union + +import numpy as np +import PIL.Image + +from ...utils import BaseOutput, is_flax_available + + +@dataclass +class StableDiffusionXLPipelineOutput(BaseOutput): + """ + Output class for Stable Diffusion pipelines. + + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or numpy array of shape `(batch_size, height, width, + num_channels)`. PIL images or numpy array present the denoised images of the diffusion pipeline. + """ + + images: Union[List[PIL.Image.Image], np.ndarray] + + +if is_flax_available(): + import flax + + @flax.struct.dataclass + class FlaxStableDiffusionXLPipelineOutput(BaseOutput): + """ + Output class for Flax Stable Diffusion XL pipelines. + + Args: + images (`np.ndarray`) + Array of shape `(batch_size, height, width, num_channels)` with images from the diffusion pipeline. + """ + + images: np.ndarray diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl.py new file mode 100644 index 0000000000000000000000000000000000000000..b97cf6f1f6f8e8c19cbbe08a1c1c09a3aee58f59 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl.py @@ -0,0 +1,1313 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import torch +from transformers import ( + CLIPImageProcessor, + CLIPTextModel, + CLIPTextModelWithProjection, + CLIPTokenizer, + CLIPVisionModelWithProjection, +) + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import ( + FromSingleFileMixin, + IPAdapterMixin, + StableDiffusionXLLoraLoaderMixin, + TextualInversionLoaderMixin, +) +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.attention_processor import ( + AttnProcessor2_0, + FusedAttnProcessor2_0, + XFormersAttnProcessor, +) +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_invisible_watermark_available, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from .pipeline_output import StableDiffusionXLPipelineOutput + + +if is_invisible_watermark_available(): + from .watermark import StableDiffusionXLWatermarker + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionXLPipeline + + >>> pipe = StableDiffusionXLPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-xl-base-1.0", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + + >>> prompt = "a photo of an astronaut riding a horse on mars" + >>> image = pipe(prompt).images[0] + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + r""" + Rescales `noise_cfg` tensor based on `guidance_rescale` to improve image quality and fix overexposure. Based on + Section 3.4 from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). + + Args: + noise_cfg (`torch.Tensor`): + The predicted noise tensor for the guided diffusion process. + noise_pred_text (`torch.Tensor`): + The predicted noise tensor for the text-guided diffusion process. + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescale factor applied to the noise predictions. + + Returns: + noise_cfg (`torch.Tensor`): The rescaled noise prediction tensor. + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionXLPipeline( + DiffusionPipeline, + StableDiffusionMixin, + FromSingleFileMixin, + StableDiffusionXLLoraLoaderMixin, + TextualInversionLoaderMixin, + IPAdapterMixin, +): + r""" + Pipeline for text-to-image generation using Stable Diffusion XL. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion XL uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + text_encoder_2 ([` CLIPTextModelWithProjection`]): + Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`): + Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of + `stabilityai/stable-diffusion-xl-base-1-0`. + add_watermarker (`bool`, *optional*): + Whether to use the [invisible_watermark library](https://github.com/ShieldMnt/invisible-watermark/) to + watermark output images. If not defined, it will default to True if the package is installed, otherwise no + watermarker will be used. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->image_encoder->unet->vae" + _optional_components = [ + "tokenizer", + "tokenizer_2", + "text_encoder", + "text_encoder_2", + "image_encoder", + "feature_extractor", + ] + _callback_tensor_inputs = [ + "latents", + "prompt_embeds", + "add_text_embeds", + "add_time_ids", + ] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + tokenizer_2: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + image_encoder: CLIPVisionModelWithProjection = None, + feature_extractor: CLIPImageProcessor = None, + force_zeros_for_empty_prompt: bool = True, + add_watermarker: Optional[bool] = None, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + unet=unet, + scheduler=scheduler, + image_encoder=image_encoder, + feature_extractor=feature_extractor, + ) + self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + self.default_sample_size = ( + self.unet.config.sample_size + if hasattr(self, "unet") and self.unet is not None and hasattr(self.unet.config, "sample_size") + else 128 + ) + + add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available() + + if add_watermarker: + self.watermark = StableDiffusionXLWatermarker() + else: + self.watermark = None + + def encode_prompt( + self, + prompt: str, + prompt_2: Optional[str] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[str] = None, + negative_prompt_2: Optional[str] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionXLLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale) + else: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # Define tokenizers and text encoders + tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] + text_encoders = ( + [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] + ) + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + # textual inversion: process multi-vector tokens if necessary + prompt_embeds_list = [] + prompts = [prompt, prompt_2] + for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, tokenizer) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if pooled_prompt_embeds is None and prompt_embeds[0].ndim == 2: + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + # "2" because SDXL always indexes from the penultimate layer. + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds_list.append(prompt_embeds) + + prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) + + # get unconditional embeddings for classifier free guidance + zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt + if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: + negative_prompt_embeds = torch.zeros_like(prompt_embeds) + negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) + elif do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + + uncond_tokens: List[str] + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = [negative_prompt, negative_prompt_2] + + negative_prompt_embeds_list = [] + for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = tokenizer( + negative_prompt, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + negative_prompt_embeds = text_encoder( + uncond_input.input_ids.to(device), + output_hidden_states=True, + ) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if negative_pooled_prompt_embeds is None and negative_prompt_embeds[0].ndim == 2: + negative_pooled_prompt_embeds = negative_prompt_embeds[0] + negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] + + negative_prompt_embeds_list.append(negative_prompt_embeds) + + negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) + + if self.text_encoder_2 is not None: + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + prompt_embeds = prompt_embeds.to(dtype=self.unet.dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + if self.text_encoder_2 is not None: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.unet.dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + if do_classifier_free_guidance: + negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + prompt_2, + height, + width, + callback_steps, + negative_prompt=None, + negative_prompt_2=None, + prompt_embeds=None, + negative_prompt_embeds=None, + pooled_prompt_embeds=None, + negative_pooled_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." + ) + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def _get_add_time_ids( + self, original_size, crops_coords_top_left, target_size, dtype, text_encoder_projection_dim=None + ): + add_time_ids = list(original_size + crops_coords_top_left + target_size) + + passed_add_embed_dim = ( + self.unet.config.addition_time_embed_dim * len(add_time_ids) + text_encoder_projection_dim + ) + expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features + + if expected_add_embed_dim != passed_add_embed_dim: + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." + ) + + add_time_ids = torch.tensor([add_time_ids], dtype=dtype) + return add_time_ids + + def upcast_vae(self): + dtype = self.vae.dtype + self.vae.to(dtype=torch.float32) + use_torch_2_0_or_xformers = isinstance( + self.vae.decoder.mid_block.attentions[0].processor, + ( + AttnProcessor2_0, + XFormersAttnProcessor, + FusedAttnProcessor2_0, + ), + ) + # if xformers or torch_2_0 is used attention block does not need + # to be in float32 which can save lots of memory + if use_torch_2_0_or_xformers: + self.vae.post_quant_conv.to(dtype) + self.vae.decoder.conv_in.to(dtype) + self.vae.decoder.mid_block.to(dtype) + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def guidance_rescale(self): + return self._guidance_rescale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def denoising_end(self): + return self._denoising_end + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + denoising_end: Optional[float] = None, + guidance_scale: float = 5.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + original_size: Optional[Tuple[int, int]] = None, + crops_coords_top_left: Tuple[int, int] = (0, 0), + target_size: Optional[Tuple[int, int]] = None, + negative_original_size: Optional[Tuple[int, int]] = None, + negative_crops_coords_top_left: Tuple[int, int] = (0, 0), + negative_target_size: Optional[Tuple[int, int]] = None, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. This is set to 1024 by default for the best results. + Anything below 512 pixels won't work well for + [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) + and checkpoints that are not specifically fine-tuned on low resolutions. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. This is set to 1024 by default for the best results. + Anything below 512 pixels won't work well for + [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) + and checkpoints that are not specifically fine-tuned on low resolutions. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + denoising_end (`float`, *optional*): + When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be + completed before it is intentionally prematurely terminated. As a result, the returned sample will + still retain a substantial amount of noise as determined by the discrete timesteps selected by the + scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a + "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image + Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) + guidance_scale (`float`, *optional*, defaults to 5.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] instead + of a plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + guidance_rescale (`float`, *optional*, defaults to 0.0): + Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891) `guidance_scale` is defined as `φ` in equation 16. of + [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when + using zero terminal SNR. + original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. + `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as + explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position + `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting + `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + For most cases, `target_size` should be set to the desired height and width of the generated image. If + not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in + section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + negative_original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a specific image resolution. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a target image resolution. It should be as same + as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 0. Default height and width to unet + height = height or self.default_sample_size * self.vae_scale_factor + width = width or self.default_sample_size * self.vae_scale_factor + + original_size = original_size or (height, width) + target_size = target_size or (height, width) + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + prompt_2, + height, + width, + callback_steps, + negative_prompt, + negative_prompt_2, + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + ) + + self._guidance_scale = guidance_scale + self._guidance_rescale = guidance_rescale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + self._denoising_end = denoising_end + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3. Encode input prompt + lora_scale = ( + self.cross_attention_kwargs.get("scale", None) if self.cross_attention_kwargs is not None else None + ) + + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + lora_scale=lora_scale, + clip_skip=self.clip_skip, + ) + + # 4. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7. Prepare added time ids & embeddings + add_text_embeds = pooled_prompt_embeds + if self.text_encoder_2 is None: + text_encoder_projection_dim = int(pooled_prompt_embeds.shape[-1]) + else: + text_encoder_projection_dim = self.text_encoder_2.config.projection_dim + + add_time_ids = self._get_add_time_ids( + original_size, + crops_coords_top_left, + target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + if negative_original_size is not None and negative_target_size is not None: + negative_add_time_ids = self._get_add_time_ids( + negative_original_size, + negative_crops_coords_top_left, + negative_target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + else: + negative_add_time_ids = add_time_ids + + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) + add_time_ids = torch.cat([negative_add_time_ids, add_time_ids], dim=0) + + prompt_embeds = prompt_embeds.to(device) + add_text_embeds = add_text_embeds.to(device) + add_time_ids = add_time_ids.to(device).repeat(batch_size * num_images_per_prompt, 1) + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 8. Denoising loop + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + + # 8.1 Apply denoising_end + if ( + self.denoising_end is not None + and isinstance(self.denoising_end, float) + and self.denoising_end > 0 + and self.denoising_end < 1 + ): + discrete_timestep_cutoff = int( + round( + self.scheduler.config.num_train_timesteps + - (self.denoising_end * self.scheduler.config.num_train_timesteps) + ) + ) + num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) + timesteps = timesteps[:num_inference_steps] + + # 9. Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + added_cond_kwargs["image_embeds"] = image_embeds + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=self.cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + if self.do_classifier_free_guidance and self.guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=self.guidance_rescale) + + # compute the previous noisy sample x_t -> x_t-1 + latents_dtype = latents.dtype + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + if latents.dtype != latents_dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + latents = latents.to(latents_dtype) + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + add_text_embeds = callback_outputs.pop("add_text_embeds", add_text_embeds) + add_time_ids = callback_outputs.pop("add_time_ids", add_time_ids) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + + if needs_upcasting: + self.upcast_vae() + latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) + elif latents.dtype != self.vae.dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + self.vae = self.vae.to(latents.dtype) + + # unscale/denormalize the latents + # denormalize with the mean and std if available and not None + has_latents_mean = hasattr(self.vae.config, "latents_mean") and self.vae.config.latents_mean is not None + has_latents_std = hasattr(self.vae.config, "latents_std") and self.vae.config.latents_std is not None + if has_latents_mean and has_latents_std: + latents_mean = ( + torch.tensor(self.vae.config.latents_mean).view(1, 4, 1, 1).to(latents.device, latents.dtype) + ) + latents_std = ( + torch.tensor(self.vae.config.latents_std).view(1, 4, 1, 1).to(latents.device, latents.dtype) + ) + latents = latents * latents_std / self.vae.config.scaling_factor + latents_mean + else: + latents = latents / self.vae.config.scaling_factor + + image = self.vae.decode(latents, return_dict=False)[0] + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + else: + image = latents + + if not output_type == "latent": + # apply watermark if available + if self.watermark is not None: + image = self.watermark.apply_watermark(image) + + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusionXLPipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_img2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_img2img.py new file mode 100644 index 0000000000000000000000000000000000000000..44e8f4fe4b543927f5759e2632c466a26273dd04 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_img2img.py @@ -0,0 +1,1503 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import PIL.Image +import torch +from transformers import ( + CLIPImageProcessor, + CLIPTextModel, + CLIPTextModelWithProjection, + CLIPTokenizer, + CLIPVisionModelWithProjection, +) + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import ( + FromSingleFileMixin, + IPAdapterMixin, + StableDiffusionXLLoraLoaderMixin, + TextualInversionLoaderMixin, +) +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.attention_processor import ( + AttnProcessor2_0, + XFormersAttnProcessor, +) +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_invisible_watermark_available, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import empty_device_cache, randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from .pipeline_output import StableDiffusionXLPipelineOutput + + +if is_invisible_watermark_available(): + from .watermark import StableDiffusionXLWatermarker + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionXLImg2ImgPipeline + >>> from diffusers.utils import load_image + + >>> pipe = StableDiffusionXLImg2ImgPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-xl-refiner-1.0", torch_dtype=torch.float16 + ... ) + >>> pipe = pipe.to("cuda") + >>> url = "https://huggingface.co/datasets/patrickvonplaten/images/resolve/main/aa_xl/000000009.png" + + >>> init_image = load_image(url).convert("RGB") + >>> prompt = "a photo of an astronaut riding a horse on mars" + >>> image = pipe(prompt, image=init_image).images[0] + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + r""" + Rescales `noise_cfg` tensor based on `guidance_rescale` to improve image quality and fix overexposure. Based on + Section 3.4 from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). + + Args: + noise_cfg (`torch.Tensor`): + The predicted noise tensor for the guided diffusion process. + noise_pred_text (`torch.Tensor`): + The predicted noise tensor for the text-guided diffusion process. + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescale factor applied to the noise predictions. + + Returns: + noise_cfg (`torch.Tensor`): The rescaled noise prediction tensor. + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionXLImg2ImgPipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + FromSingleFileMixin, + StableDiffusionXLLoraLoaderMixin, + IPAdapterMixin, +): + r""" + Pipeline for text-to-image generation using Stable Diffusion XL. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion XL uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + text_encoder_2 ([` CLIPTextModelWithProjection`]): + Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + requires_aesthetics_score (`bool`, *optional*, defaults to `"False"`): + Whether the `unet` requires an `aesthetic_score` condition to be passed during inference. Also see the + config of `stabilityai/stable-diffusion-xl-refiner-1-0`. + force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`): + Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of + `stabilityai/stable-diffusion-xl-base-1-0`. + add_watermarker (`bool`, *optional*): + Whether to use the [invisible_watermark library](https://github.com/ShieldMnt/invisible-watermark/) to + watermark output images. If not defined, it will default to True if the package is installed, otherwise no + watermarker will be used. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->image_encoder->unet->vae" + _optional_components = [ + "tokenizer", + "tokenizer_2", + "text_encoder", + "text_encoder_2", + "image_encoder", + "feature_extractor", + ] + _callback_tensor_inputs = [ + "latents", + "prompt_embeds", + "add_text_embeds", + "add_time_ids", + ] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + tokenizer_2: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + image_encoder: CLIPVisionModelWithProjection = None, + feature_extractor: CLIPImageProcessor = None, + requires_aesthetics_score: bool = False, + force_zeros_for_empty_prompt: bool = True, + add_watermarker: Optional[bool] = None, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + unet=unet, + image_encoder=image_encoder, + feature_extractor=feature_extractor, + scheduler=scheduler, + ) + self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) + self.register_to_config(requires_aesthetics_score=requires_aesthetics_score) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available() + + if add_watermarker: + self.watermark = StableDiffusionXLWatermarker() + else: + self.watermark = None + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.encode_prompt + def encode_prompt( + self, + prompt: str, + prompt_2: Optional[str] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[str] = None, + negative_prompt_2: Optional[str] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionXLLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale) + else: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # Define tokenizers and text encoders + tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] + text_encoders = ( + [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] + ) + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + # textual inversion: process multi-vector tokens if necessary + prompt_embeds_list = [] + prompts = [prompt, prompt_2] + for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, tokenizer) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if pooled_prompt_embeds is None and prompt_embeds[0].ndim == 2: + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + # "2" because SDXL always indexes from the penultimate layer. + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds_list.append(prompt_embeds) + + prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) + + # get unconditional embeddings for classifier free guidance + zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt + if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: + negative_prompt_embeds = torch.zeros_like(prompt_embeds) + negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) + elif do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + + uncond_tokens: List[str] + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = [negative_prompt, negative_prompt_2] + + negative_prompt_embeds_list = [] + for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = tokenizer( + negative_prompt, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + negative_prompt_embeds = text_encoder( + uncond_input.input_ids.to(device), + output_hidden_states=True, + ) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if negative_pooled_prompt_embeds is None and negative_prompt_embeds[0].ndim == 2: + negative_pooled_prompt_embeds = negative_prompt_embeds[0] + negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] + + negative_prompt_embeds_list.append(negative_prompt_embeds) + + negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) + + if self.text_encoder_2 is not None: + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + prompt_embeds = prompt_embeds.to(dtype=self.unet.dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + if self.text_encoder_2 is not None: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.unet.dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + if do_classifier_free_guidance: + negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + prompt_2, + strength, + num_inference_steps, + callback_steps, + negative_prompt=None, + negative_prompt_2=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + if num_inference_steps is None: + raise ValueError("`num_inference_steps` cannot be None.") + elif not isinstance(num_inference_steps, int) or num_inference_steps <= 0: + raise ValueError( + f"`num_inference_steps` has to be a positive integer but is {num_inference_steps} of type" + f" {type(num_inference_steps)}." + ) + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + def get_timesteps(self, num_inference_steps, strength, device, denoising_start=None): + # get the original timestep using init_timestep + if denoising_start is None: + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + t_start = max(num_inference_steps - init_timestep, 0) + + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + else: + # Strength is irrelevant if we directly request a timestep to start at; + # that is, strength is determined by the denoising_start instead. + discrete_timestep_cutoff = int( + round( + self.scheduler.config.num_train_timesteps + - (denoising_start * self.scheduler.config.num_train_timesteps) + ) + ) + + num_inference_steps = (self.scheduler.timesteps < discrete_timestep_cutoff).sum().item() + if self.scheduler.order == 2 and num_inference_steps % 2 == 0: + # if the scheduler is a 2nd order scheduler we might have to do +1 + # because `num_inference_steps` might be even given that every timestep + # (except the highest one) is duplicated. If `num_inference_steps` is even it would + # mean that we cut the timesteps in the middle of the denoising step + # (between 1st and 2nd derivative) which leads to incorrect results. By adding 1 + # we ensure that the denoising process always ends after the 2nd derivate step of the scheduler + num_inference_steps = num_inference_steps + 1 + + # because t_n+1 >= t_n, we slice the timesteps starting from the end + t_start = len(self.scheduler.timesteps) - num_inference_steps + timesteps = self.scheduler.timesteps[t_start:] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start) + return timesteps, num_inference_steps + + def prepare_latents( + self, image, timestep, batch_size, num_images_per_prompt, dtype, device, generator=None, add_noise=True + ): + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + latents_mean = latents_std = None + if hasattr(self.vae.config, "latents_mean") and self.vae.config.latents_mean is not None: + latents_mean = torch.tensor(self.vae.config.latents_mean).view(1, 4, 1, 1) + if hasattr(self.vae.config, "latents_std") and self.vae.config.latents_std is not None: + latents_std = torch.tensor(self.vae.config.latents_std).view(1, 4, 1, 1) + + # Offload text encoder if `enable_model_cpu_offload` was enabled + if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: + self.text_encoder_2.to("cpu") + empty_device_cache() + + image = image.to(device=device, dtype=dtype) + + batch_size = batch_size * num_images_per_prompt + + if image.shape[1] == 4: + init_latents = image + + else: + # make sure the VAE is in float32 mode, as it overflows in float16 + if self.vae.config.force_upcast: + image = image.float() + self.vae.to(dtype=torch.float32) + + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + elif isinstance(generator, list): + if image.shape[0] < batch_size and batch_size % image.shape[0] == 0: + image = torch.cat([image] * (batch_size // image.shape[0]), dim=0) + elif image.shape[0] < batch_size and batch_size % image.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {image.shape[0]} to effective batch_size {batch_size} " + ) + + init_latents = [ + retrieve_latents(self.vae.encode(image[i : i + 1]), generator=generator[i]) + for i in range(batch_size) + ] + init_latents = torch.cat(init_latents, dim=0) + else: + init_latents = retrieve_latents(self.vae.encode(image), generator=generator) + + if self.vae.config.force_upcast: + self.vae.to(dtype) + + init_latents = init_latents.to(dtype) + if latents_mean is not None and latents_std is not None: + latents_mean = latents_mean.to(device=device, dtype=dtype) + latents_std = latents_std.to(device=device, dtype=dtype) + init_latents = (init_latents - latents_mean) * self.vae.config.scaling_factor / latents_std + else: + init_latents = self.vae.config.scaling_factor * init_latents + + if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] == 0: + # expand init_latents for batch_size + additional_image_per_prompt = batch_size // init_latents.shape[0] + init_latents = torch.cat([init_latents] * additional_image_per_prompt, dim=0) + elif batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {init_latents.shape[0]} to {batch_size} text prompts." + ) + else: + init_latents = torch.cat([init_latents], dim=0) + + if add_noise: + shape = init_latents.shape + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + # get latents + init_latents = self.scheduler.add_noise(init_latents, noise, timestep) + + latents = init_latents + + return latents + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + def _get_add_time_ids( + self, + original_size, + crops_coords_top_left, + target_size, + aesthetic_score, + negative_aesthetic_score, + negative_original_size, + negative_crops_coords_top_left, + negative_target_size, + dtype, + text_encoder_projection_dim=None, + ): + if self.config.requires_aesthetics_score: + add_time_ids = list(original_size + crops_coords_top_left + (aesthetic_score,)) + add_neg_time_ids = list( + negative_original_size + negative_crops_coords_top_left + (negative_aesthetic_score,) + ) + else: + add_time_ids = list(original_size + crops_coords_top_left + target_size) + add_neg_time_ids = list(negative_original_size + crops_coords_top_left + negative_target_size) + + passed_add_embed_dim = ( + self.unet.config.addition_time_embed_dim * len(add_time_ids) + text_encoder_projection_dim + ) + expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features + + if ( + expected_add_embed_dim > passed_add_embed_dim + and (expected_add_embed_dim - passed_add_embed_dim) == self.unet.config.addition_time_embed_dim + ): + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. Please make sure to enable `requires_aesthetics_score` with `pipe.register_to_config(requires_aesthetics_score=True)` to make sure `aesthetic_score` {aesthetic_score} and `negative_aesthetic_score` {negative_aesthetic_score} is correctly used by the model." + ) + elif ( + expected_add_embed_dim < passed_add_embed_dim + and (passed_add_embed_dim - expected_add_embed_dim) == self.unet.config.addition_time_embed_dim + ): + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. Please make sure to disable `requires_aesthetics_score` with `pipe.register_to_config(requires_aesthetics_score=False)` to make sure `target_size` {target_size} is correctly used by the model." + ) + elif expected_add_embed_dim != passed_add_embed_dim: + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." + ) + + add_time_ids = torch.tensor([add_time_ids], dtype=dtype) + add_neg_time_ids = torch.tensor([add_neg_time_ids], dtype=dtype) + + return add_time_ids, add_neg_time_ids + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_upscale.StableDiffusionUpscalePipeline.upcast_vae + def upcast_vae(self): + dtype = self.vae.dtype + self.vae.to(dtype=torch.float32) + use_torch_2_0_or_xformers = isinstance( + self.vae.decoder.mid_block.attentions[0].processor, + ( + AttnProcessor2_0, + XFormersAttnProcessor, + ), + ) + # if xformers or torch_2_0 is used attention block does not need + # to be in float32 which can save lots of memory + if use_torch_2_0_or_xformers: + self.vae.post_quant_conv.to(dtype) + self.vae.decoder.conv_in.to(dtype) + self.vae.decoder.mid_block.to(dtype) + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def guidance_rescale(self): + return self._guidance_rescale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def denoising_end(self): + return self._denoising_end + + @property + def denoising_start(self): + return self._denoising_start + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + image: PipelineImageInput = None, + strength: float = 0.3, + num_inference_steps: int = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + denoising_start: Optional[float] = None, + denoising_end: Optional[float] = None, + guidance_scale: float = 5.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + original_size: Tuple[int, int] = None, + crops_coords_top_left: Tuple[int, int] = (0, 0), + target_size: Tuple[int, int] = None, + negative_original_size: Optional[Tuple[int, int]] = None, + negative_crops_coords_top_left: Tuple[int, int] = (0, 0), + negative_target_size: Optional[Tuple[int, int]] = None, + aesthetic_score: float = 6.0, + negative_aesthetic_score: float = 2.5, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + image (`torch.Tensor` or `PIL.Image.Image` or `np.ndarray` or `List[torch.Tensor]` or `List[PIL.Image.Image]` or `List[np.ndarray]`): + The image(s) to modify with the pipeline. + strength (`float`, *optional*, defaults to 0.3): + Conceptually, indicates how much to transform the reference `image`. Must be between 0 and 1. `image` + will be used as a starting point, adding more noise to it the larger the `strength`. The number of + denoising steps depends on the amount of noise initially added. When `strength` is 1, added noise will + be maximum and the denoising process will run for the full number of iterations specified in + `num_inference_steps`. A value of 1, therefore, essentially ignores `image`. Note that in the case of + `denoising_start` being declared as an integer, the value of `strength` will be ignored. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + denoising_start (`float`, *optional*): + When specified, indicates the fraction (between 0.0 and 1.0) of the total denoising process to be + bypassed before it is initiated. Consequently, the initial part of the denoising process is skipped and + it is assumed that the passed `image` is a partly denoised image. Note that when this is specified, + strength will be ignored. The `denoising_start` parameter is particularly beneficial when this pipeline + is integrated into a "Mixture of Denoisers" multi-pipeline setup, as detailed in [**Refine Image + Quality**](https://huggingface.co/docs/diffusers/using-diffusers/sdxl#refine-image-quality). + denoising_end (`float`, *optional*): + When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be + completed before it is intentionally prematurely terminated. As a result, the returned sample will + still retain a substantial amount of noise (ca. final 20% of timesteps still needed) and should be + denoised by a successor pipeline that has `denoising_start` set to 0.8 so that it only denoises the + final 20% of the scheduler. The denoising_end parameter should ideally be utilized when this pipeline + forms a part of a "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refine Image + Quality**](https://huggingface.co/docs/diffusers/using-diffusers/sdxl#refine-image-quality). + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput`] instead of a + plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + guidance_rescale (`float`, *optional*, defaults to 0.0): + Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891) `guidance_scale` is defined as `φ` in equation 16. of + [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when + using zero terminal SNR. + original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. + `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as + explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position + `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting + `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + For most cases, `target_size` should be set to the desired height and width of the generated image. If + not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in + section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + negative_original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a specific image resolution. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a target image resolution. It should be as same + as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + aesthetic_score (`float`, *optional*, defaults to 6.0): + Used to simulate an aesthetic score of the generated image by influencing the positive text condition. + Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + negative_aesthetic_score (`float`, *optional*, defaults to 2.5): + Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). Can be used to + simulate an aesthetic score of the generated image by influencing the negative text condition. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput`] if `return_dict` is True, otherwise a + `tuple. When returning a tuple, the first element is a list with the generated images. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + prompt_2, + strength, + num_inference_steps, + callback_steps, + negative_prompt, + negative_prompt_2, + prompt_embeds, + negative_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + ) + + self._guidance_scale = guidance_scale + self._guidance_rescale = guidance_rescale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + self._denoising_end = denoising_end + self._denoising_start = denoising_start + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3. Encode input prompt + text_encoder_lora_scale = ( + self.cross_attention_kwargs.get("scale", None) if self.cross_attention_kwargs is not None else None + ) + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=self.clip_skip, + ) + + # 4. Preprocess image + image = self.image_processor.preprocess(image) + + # 5. Prepare timesteps + def denoising_value_valid(dnv): + return isinstance(dnv, float) and 0 < dnv < 1 + + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + timesteps, num_inference_steps = self.get_timesteps( + num_inference_steps, + strength, + device, + denoising_start=self.denoising_start if denoising_value_valid(self.denoising_start) else None, + ) + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + + add_noise = True if self.denoising_start is None else False + + # 6. Prepare latent variables + if latents is None: + latents = self.prepare_latents( + image, + latent_timestep, + batch_size, + num_images_per_prompt, + prompt_embeds.dtype, + device, + generator, + add_noise, + ) + # 7. Prepare extra step kwargs. + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + height, width = latents.shape[-2:] + height = height * self.vae_scale_factor + width = width * self.vae_scale_factor + + original_size = original_size or (height, width) + target_size = target_size or (height, width) + + # 8. Prepare added time ids & embeddings + if negative_original_size is None: + negative_original_size = original_size + if negative_target_size is None: + negative_target_size = target_size + + add_text_embeds = pooled_prompt_embeds + if self.text_encoder_2 is None: + text_encoder_projection_dim = int(pooled_prompt_embeds.shape[-1]) + else: + text_encoder_projection_dim = self.text_encoder_2.config.projection_dim + + add_time_ids, add_neg_time_ids = self._get_add_time_ids( + original_size, + crops_coords_top_left, + target_size, + aesthetic_score, + negative_aesthetic_score, + negative_original_size, + negative_crops_coords_top_left, + negative_target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + add_time_ids = add_time_ids.repeat(batch_size * num_images_per_prompt, 1) + + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) + add_neg_time_ids = add_neg_time_ids.repeat(batch_size * num_images_per_prompt, 1) + add_time_ids = torch.cat([add_neg_time_ids, add_time_ids], dim=0) + + prompt_embeds = prompt_embeds.to(device) + add_text_embeds = add_text_embeds.to(device) + add_time_ids = add_time_ids.to(device) + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 9. Denoising loop + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + + # 9.1 Apply denoising_end + if ( + self.denoising_end is not None + and self.denoising_start is not None + and denoising_value_valid(self.denoising_end) + and denoising_value_valid(self.denoising_start) + and self.denoising_start >= self.denoising_end + ): + raise ValueError( + f"`denoising_start`: {self.denoising_start} cannot be larger than or equal to `denoising_end`: " + + f" {self.denoising_end} when using type float." + ) + elif self.denoising_end is not None and denoising_value_valid(self.denoising_end): + discrete_timestep_cutoff = int( + round( + self.scheduler.config.num_train_timesteps + - (self.denoising_end * self.scheduler.config.num_train_timesteps) + ) + ) + num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) + timesteps = timesteps[:num_inference_steps] + + # 9.2 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + added_cond_kwargs["image_embeds"] = image_embeds + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=self.cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + if self.do_classifier_free_guidance and self.guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=self.guidance_rescale) + + # compute the previous noisy sample x_t -> x_t-1 + latents_dtype = latents.dtype + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + if latents.dtype != latents_dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + latents = latents.to(latents_dtype) + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + add_text_embeds = callback_outputs.pop("add_text_embeds", add_text_embeds) + add_time_ids = callback_outputs.pop("add_time_ids", add_time_ids) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + + if needs_upcasting: + self.upcast_vae() + latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) + elif latents.dtype != self.vae.dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + self.vae = self.vae.to(latents.dtype) + + # unscale/denormalize the latents + # denormalize with the mean and std if available and not None + has_latents_mean = hasattr(self.vae.config, "latents_mean") and self.vae.config.latents_mean is not None + has_latents_std = hasattr(self.vae.config, "latents_std") and self.vae.config.latents_std is not None + if has_latents_mean and has_latents_std: + latents_mean = ( + torch.tensor(self.vae.config.latents_mean).view(1, 4, 1, 1).to(latents.device, latents.dtype) + ) + latents_std = ( + torch.tensor(self.vae.config.latents_std).view(1, 4, 1, 1).to(latents.device, latents.dtype) + ) + latents = latents * latents_std / self.vae.config.scaling_factor + latents_mean + else: + latents = latents / self.vae.config.scaling_factor + + image = self.vae.decode(latents, return_dict=False)[0] + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + else: + image = latents + + # apply watermark if available + if self.watermark is not None: + image = self.watermark.apply_watermark(image) + + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusionXLPipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_inpaint.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_inpaint.py new file mode 100644 index 0000000000000000000000000000000000000000..88cc7515b051df1b8ebaabe328acfa13322a117f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_inpaint.py @@ -0,0 +1,1740 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import numpy as np +import PIL.Image +import torch +from transformers import ( + CLIPImageProcessor, + CLIPTextModel, + CLIPTextModelWithProjection, + CLIPTokenizer, + CLIPVisionModelWithProjection, +) + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import ( + FromSingleFileMixin, + IPAdapterMixin, + StableDiffusionXLLoraLoaderMixin, + TextualInversionLoaderMixin, +) +from ...models import AutoencoderKL, ImageProjection, UNet2DConditionModel +from ...models.attention_processor import ( + AttnProcessor2_0, + XFormersAttnProcessor, +) +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_invisible_watermark_available, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from .pipeline_output import StableDiffusionXLPipelineOutput + + +if is_invisible_watermark_available(): + from .watermark import StableDiffusionXLWatermarker + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionXLInpaintPipeline + >>> from diffusers.utils import load_image + + >>> pipe = StableDiffusionXLInpaintPipeline.from_pretrained( + ... "stabilityai/stable-diffusion-xl-base-1.0", + ... torch_dtype=torch.float16, + ... variant="fp16", + ... use_safetensors=True, + ... ) + >>> pipe.to("cuda") + + >>> img_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo.png" + >>> mask_url = "https://raw.githubusercontent.com/CompVis/latent-diffusion/main/data/inpainting_examples/overture-creations-5sI6fQgYIuo_mask.png" + + >>> init_image = load_image(img_url).convert("RGB") + >>> mask_image = load_image(mask_url).convert("RGB") + + >>> prompt = "A majestic tiger sitting on a bench" + >>> image = pipe( + ... prompt=prompt, image=init_image, mask_image=mask_image, num_inference_steps=50, strength=0.80 + ... ).images[0] + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + r""" + Rescales `noise_cfg` tensor based on `guidance_rescale` to improve image quality and fix overexposure. Based on + Section 3.4 from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). + + Args: + noise_cfg (`torch.Tensor`): + The predicted noise tensor for the guided diffusion process. + noise_pred_text (`torch.Tensor`): + The predicted noise tensor for the text-guided diffusion process. + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescale factor applied to the noise predictions. + + Returns: + noise_cfg (`torch.Tensor`): The rescaled noise prediction tensor. + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +def mask_pil_to_torch(mask, height, width): + # preprocess mask + if isinstance(mask, (PIL.Image.Image, np.ndarray)): + mask = [mask] + + if isinstance(mask, list) and isinstance(mask[0], PIL.Image.Image): + mask = [i.resize((width, height), resample=PIL.Image.LANCZOS) for i in mask] + mask = np.concatenate([np.array(m.convert("L"))[None, None, :] for m in mask], axis=0) + mask = mask.astype(np.float32) / 255.0 + elif isinstance(mask, list) and isinstance(mask[0], np.ndarray): + mask = np.concatenate([m[None, None, :] for m in mask], axis=0) + + mask = torch.from_numpy(mask) + return mask + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionXLInpaintPipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionXLLoraLoaderMixin, + FromSingleFileMixin, + IPAdapterMixin, +): + r""" + Pipeline for text-to-image generation using Stable Diffusion XL. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion XL uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + text_encoder_2 ([` CLIPTextModelWithProjection`]): + Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + requires_aesthetics_score (`bool`, *optional*, defaults to `"False"`): + Whether the `unet` requires a aesthetic_score condition to be passed during inference. Also see the config + of `stabilityai/stable-diffusion-xl-refiner-1-0`. + force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`): + Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of + `stabilityai/stable-diffusion-xl-base-1-0`. + add_watermarker (`bool`, *optional*): + Whether to use the [invisible_watermark library](https://github.com/ShieldMnt/invisible-watermark/) to + watermark output images. If not defined, it will default to True if the package is installed, otherwise no + watermarker will be used. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->image_encoder->unet->vae" + + _optional_components = [ + "tokenizer", + "tokenizer_2", + "text_encoder", + "text_encoder_2", + "image_encoder", + "feature_extractor", + ] + _callback_tensor_inputs = [ + "latents", + "prompt_embeds", + "add_text_embeds", + "add_time_ids", + "mask", + "masked_image_latents", + ] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + tokenizer_2: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + image_encoder: CLIPVisionModelWithProjection = None, + feature_extractor: CLIPImageProcessor = None, + requires_aesthetics_score: bool = False, + force_zeros_for_empty_prompt: bool = True, + add_watermarker: Optional[bool] = None, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + unet=unet, + image_encoder=image_encoder, + feature_extractor=feature_extractor, + scheduler=scheduler, + ) + self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) + self.register_to_config(requires_aesthetics_score=requires_aesthetics_score) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.mask_processor = VaeImageProcessor( + vae_scale_factor=self.vae_scale_factor, do_normalize=False, do_binarize=True, do_convert_grayscale=True + ) + + add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available() + + if add_watermarker: + self.watermark = StableDiffusionXLWatermarker() + else: + self.watermark = None + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.encode_prompt + def encode_prompt( + self, + prompt: str, + prompt_2: Optional[str] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[str] = None, + negative_prompt_2: Optional[str] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionXLLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale) + else: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # Define tokenizers and text encoders + tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] + text_encoders = ( + [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] + ) + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + # textual inversion: process multi-vector tokens if necessary + prompt_embeds_list = [] + prompts = [prompt, prompt_2] + for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, tokenizer) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if pooled_prompt_embeds is None and prompt_embeds[0].ndim == 2: + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + # "2" because SDXL always indexes from the penultimate layer. + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds_list.append(prompt_embeds) + + prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) + + # get unconditional embeddings for classifier free guidance + zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt + if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: + negative_prompt_embeds = torch.zeros_like(prompt_embeds) + negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) + elif do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + + uncond_tokens: List[str] + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = [negative_prompt, negative_prompt_2] + + negative_prompt_embeds_list = [] + for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = tokenizer( + negative_prompt, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + negative_prompt_embeds = text_encoder( + uncond_input.input_ids.to(device), + output_hidden_states=True, + ) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if negative_pooled_prompt_embeds is None and negative_prompt_embeds[0].ndim == 2: + negative_pooled_prompt_embeds = negative_prompt_embeds[0] + negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] + + negative_prompt_embeds_list.append(negative_prompt_embeds) + + negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) + + if self.text_encoder_2 is not None: + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + prompt_embeds = prompt_embeds.to(dtype=self.unet.dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + if self.text_encoder_2 is not None: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.unet.dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + if do_classifier_free_guidance: + negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + prompt_2, + image, + mask_image, + height, + width, + strength, + callback_steps, + output_type, + negative_prompt=None, + negative_prompt_2=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + padding_mask_crop=None, + ): + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + if padding_mask_crop is not None: + if not isinstance(image, PIL.Image.Image): + raise ValueError( + f"The image should be a PIL image when inpainting mask crop, but is of type {type(image)}." + ) + if not isinstance(mask_image, PIL.Image.Image): + raise ValueError( + f"The mask image should be a PIL image when inpainting mask crop, but is of type" + f" {type(mask_image)}." + ) + if output_type != "pil": + raise ValueError(f"The output type should be PIL when inpainting mask crop, but is {output_type}.") + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + def prepare_latents( + self, + batch_size, + num_channels_latents, + height, + width, + dtype, + device, + generator, + latents=None, + image=None, + timestep=None, + is_strength_max=True, + add_noise=True, + return_noise=False, + return_image_latents=False, + ): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if (image is None or timestep is None) and not is_strength_max: + raise ValueError( + "Since strength < 1. initial latents are to be initialised as a combination of Image + Noise." + "However, either the image or the noise timestep has not been provided." + ) + + if image.shape[1] == 4: + image_latents = image.to(device=device, dtype=dtype) + image_latents = image_latents.repeat(batch_size // image_latents.shape[0], 1, 1, 1) + elif return_image_latents or (latents is None and not is_strength_max): + image = image.to(device=device, dtype=dtype) + image_latents = self._encode_vae_image(image=image, generator=generator) + image_latents = image_latents.repeat(batch_size // image_latents.shape[0], 1, 1, 1) + + if latents is None and add_noise: + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + # if strength is 1. then initialise the latents to noise, else initial to image + noise + latents = noise if is_strength_max else self.scheduler.add_noise(image_latents, noise, timestep) + # if pure noise then scale the initial latents by the Scheduler's init sigma + latents = latents * self.scheduler.init_noise_sigma if is_strength_max else latents + elif add_noise: + noise = latents.to(device) + latents = noise * self.scheduler.init_noise_sigma + else: + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + latents = image_latents.to(device) + + outputs = (latents,) + + if return_noise: + outputs += (noise,) + + if return_image_latents: + outputs += (image_latents,) + + return outputs + + def _encode_vae_image(self, image: torch.Tensor, generator: torch.Generator): + dtype = image.dtype + if self.vae.config.force_upcast: + image = image.float() + self.vae.to(dtype=torch.float32) + + if isinstance(generator, list): + image_latents = [ + retrieve_latents(self.vae.encode(image[i : i + 1]), generator=generator[i]) + for i in range(image.shape[0]) + ] + image_latents = torch.cat(image_latents, dim=0) + else: + image_latents = retrieve_latents(self.vae.encode(image), generator=generator) + + if self.vae.config.force_upcast: + self.vae.to(dtype) + + image_latents = image_latents.to(dtype) + image_latents = self.vae.config.scaling_factor * image_latents + + return image_latents + + def prepare_mask_latents( + self, mask, masked_image, batch_size, height, width, dtype, device, generator, do_classifier_free_guidance + ): + # resize the mask to latents shape as we concatenate the mask to the latents + # we do that before converting to dtype to avoid breaking in case we're using cpu_offload + # and half precision + mask = torch.nn.functional.interpolate( + mask, size=(height // self.vae_scale_factor, width // self.vae_scale_factor) + ) + mask = mask.to(device=device, dtype=dtype) + + # duplicate mask and masked_image_latents for each generation per prompt, using mps friendly method + if mask.shape[0] < batch_size: + if not batch_size % mask.shape[0] == 0: + raise ValueError( + "The passed mask and the required batch size don't match. Masks are supposed to be duplicated to" + f" a total batch size of {batch_size}, but {mask.shape[0]} masks were passed. Make sure the number" + " of masks that you pass is divisible by the total requested batch size." + ) + mask = mask.repeat(batch_size // mask.shape[0], 1, 1, 1) + + mask = torch.cat([mask] * 2) if do_classifier_free_guidance else mask + + if masked_image is not None and masked_image.shape[1] == 4: + masked_image_latents = masked_image + else: + masked_image_latents = None + + if masked_image is not None: + if masked_image_latents is None: + masked_image = masked_image.to(device=device, dtype=dtype) + masked_image_latents = self._encode_vae_image(masked_image, generator=generator) + + if masked_image_latents.shape[0] < batch_size: + if not batch_size % masked_image_latents.shape[0] == 0: + raise ValueError( + "The passed images and the required batch size don't match. Images are supposed to be duplicated" + f" to a total batch size of {batch_size}, but {masked_image_latents.shape[0]} images were passed." + " Make sure the number of images that you pass is divisible by the total requested batch size." + ) + masked_image_latents = masked_image_latents.repeat( + batch_size // masked_image_latents.shape[0], 1, 1, 1 + ) + + masked_image_latents = ( + torch.cat([masked_image_latents] * 2) if do_classifier_free_guidance else masked_image_latents + ) + + # aligning device to prevent device errors when concating it with the latent model input + masked_image_latents = masked_image_latents.to(device=device, dtype=dtype) + + return mask, masked_image_latents + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl_img2img.StableDiffusionXLImg2ImgPipeline.get_timesteps + def get_timesteps(self, num_inference_steps, strength, device, denoising_start=None): + # get the original timestep using init_timestep + if denoising_start is None: + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + t_start = max(num_inference_steps - init_timestep, 0) + + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + else: + # Strength is irrelevant if we directly request a timestep to start at; + # that is, strength is determined by the denoising_start instead. + discrete_timestep_cutoff = int( + round( + self.scheduler.config.num_train_timesteps + - (denoising_start * self.scheduler.config.num_train_timesteps) + ) + ) + + num_inference_steps = (self.scheduler.timesteps < discrete_timestep_cutoff).sum().item() + if self.scheduler.order == 2 and num_inference_steps % 2 == 0: + # if the scheduler is a 2nd order scheduler we might have to do +1 + # because `num_inference_steps` might be even given that every timestep + # (except the highest one) is duplicated. If `num_inference_steps` is even it would + # mean that we cut the timesteps in the middle of the denoising step + # (between 1st and 2nd derivative) which leads to incorrect results. By adding 1 + # we ensure that the denoising process always ends after the 2nd derivate step of the scheduler + num_inference_steps = num_inference_steps + 1 + + # because t_n+1 >= t_n, we slice the timesteps starting from the end + t_start = len(self.scheduler.timesteps) - num_inference_steps + timesteps = self.scheduler.timesteps[t_start:] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start) + return timesteps, num_inference_steps + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl_img2img.StableDiffusionXLImg2ImgPipeline._get_add_time_ids + def _get_add_time_ids( + self, + original_size, + crops_coords_top_left, + target_size, + aesthetic_score, + negative_aesthetic_score, + negative_original_size, + negative_crops_coords_top_left, + negative_target_size, + dtype, + text_encoder_projection_dim=None, + ): + if self.config.requires_aesthetics_score: + add_time_ids = list(original_size + crops_coords_top_left + (aesthetic_score,)) + add_neg_time_ids = list( + negative_original_size + negative_crops_coords_top_left + (negative_aesthetic_score,) + ) + else: + add_time_ids = list(original_size + crops_coords_top_left + target_size) + add_neg_time_ids = list(negative_original_size + crops_coords_top_left + negative_target_size) + + passed_add_embed_dim = ( + self.unet.config.addition_time_embed_dim * len(add_time_ids) + text_encoder_projection_dim + ) + expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features + + if ( + expected_add_embed_dim > passed_add_embed_dim + and (expected_add_embed_dim - passed_add_embed_dim) == self.unet.config.addition_time_embed_dim + ): + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. Please make sure to enable `requires_aesthetics_score` with `pipe.register_to_config(requires_aesthetics_score=True)` to make sure `aesthetic_score` {aesthetic_score} and `negative_aesthetic_score` {negative_aesthetic_score} is correctly used by the model." + ) + elif ( + expected_add_embed_dim < passed_add_embed_dim + and (passed_add_embed_dim - expected_add_embed_dim) == self.unet.config.addition_time_embed_dim + ): + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. Please make sure to disable `requires_aesthetics_score` with `pipe.register_to_config(requires_aesthetics_score=False)` to make sure `target_size` {target_size} is correctly used by the model." + ) + elif expected_add_embed_dim != passed_add_embed_dim: + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." + ) + + add_time_ids = torch.tensor([add_time_ids], dtype=dtype) + add_neg_time_ids = torch.tensor([add_neg_time_ids], dtype=dtype) + + return add_time_ids, add_neg_time_ids + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_upscale.StableDiffusionUpscalePipeline.upcast_vae + def upcast_vae(self): + dtype = self.vae.dtype + self.vae.to(dtype=torch.float32) + use_torch_2_0_or_xformers = isinstance( + self.vae.decoder.mid_block.attentions[0].processor, + ( + AttnProcessor2_0, + XFormersAttnProcessor, + ), + ) + # if xformers or torch_2_0 is used attention block does not need + # to be in float32 which can save lots of memory + if use_torch_2_0_or_xformers: + self.vae.post_quant_conv.to(dtype) + self.vae.decoder.conv_in.to(dtype) + self.vae.decoder.mid_block.to(dtype) + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def guidance_rescale(self): + return self._guidance_rescale + + @property + def clip_skip(self): + return self._clip_skip + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @property + def cross_attention_kwargs(self): + return self._cross_attention_kwargs + + @property + def denoising_end(self): + return self._denoising_end + + @property + def denoising_start(self): + return self._denoising_start + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + image: PipelineImageInput = None, + mask_image: PipelineImageInput = None, + masked_image_latents: torch.Tensor = None, + height: Optional[int] = None, + width: Optional[int] = None, + padding_mask_crop: Optional[int] = None, + strength: float = 0.9999, + num_inference_steps: int = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + denoising_start: Optional[float] = None, + denoising_end: Optional[float] = None, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + original_size: Tuple[int, int] = None, + crops_coords_top_left: Tuple[int, int] = (0, 0), + target_size: Tuple[int, int] = None, + negative_original_size: Optional[Tuple[int, int]] = None, + negative_crops_coords_top_left: Tuple[int, int] = (0, 0), + negative_target_size: Optional[Tuple[int, int]] = None, + aesthetic_score: float = 6.0, + negative_aesthetic_score: float = 2.5, + clip_skip: Optional[int] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + image (`PIL.Image.Image`): + `Image`, or tensor representing an image batch which will be inpainted, *i.e.* parts of the image will + be masked out with `mask_image` and repainted according to `prompt`. + mask_image (`PIL.Image.Image`): + `Image`, or tensor representing an image batch, to mask `image`. White pixels in the mask will be + repainted, while black pixels will be preserved. If `mask_image` is a PIL image, it will be converted + to a single channel (luminance) before use. If it's a tensor, it should contain one color channel (L) + instead of 3, so the expected shape would be `(B, H, W, 1)`. + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. This is set to 1024 by default for the best results. + Anything below 512 pixels won't work well for + [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) + and checkpoints that are not specifically fine-tuned on low resolutions. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. This is set to 1024 by default for the best results. + Anything below 512 pixels won't work well for + [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) + and checkpoints that are not specifically fine-tuned on low resolutions. + padding_mask_crop (`int`, *optional*, defaults to `None`): + The size of margin in the crop to be applied to the image and masking. If `None`, no crop is applied to + image and mask_image. If `padding_mask_crop` is not `None`, it will first find a rectangular region + with the same aspect ration of the image and contains all masked area, and then expand that area based + on `padding_mask_crop`. The image and mask_image will then be cropped based on the expanded area before + resizing to the original image size for inpainting. This is useful when the masked area is small while + the image is large and contain information irrelevant for inpainting, such as background. + strength (`float`, *optional*, defaults to 0.9999): + Conceptually, indicates how much to transform the masked portion of the reference `image`. Must be + between 0 and 1. `image` will be used as a starting point, adding more noise to it the larger the + `strength`. The number of denoising steps depends on the amount of noise initially added. When + `strength` is 1, added noise will be maximum and the denoising process will run for the full number of + iterations specified in `num_inference_steps`. A value of 1, therefore, essentially ignores the masked + portion of the reference `image`. Note that in the case of `denoising_start` being declared as an + integer, the value of `strength` will be ignored. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + denoising_start (`float`, *optional*): + When specified, indicates the fraction (between 0.0 and 1.0) of the total denoising process to be + bypassed before it is initiated. Consequently, the initial part of the denoising process is skipped and + it is assumed that the passed `image` is a partly denoised image. Note that when this is specified, + strength will be ignored. The `denoising_start` parameter is particularly beneficial when this pipeline + is integrated into a "Mixture of Denoisers" multi-pipeline setup, as detailed in [**Refining the Image + Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output). + denoising_end (`float`, *optional*): + When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be + completed before it is intentionally prematurely terminated. As a result, the returned sample will + still retain a substantial amount of noise (ca. final 20% of timesteps still needed) and should be + denoised by a successor pipeline that has `denoising_start` set to 0.8 so that it only denoises the + final 20% of the scheduler. The denoising_end parameter should ideally be utilized when this pipeline + forms a part of a "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image + Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output). + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. + `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as + explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position + `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting + `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + For most cases, `target_size` should be set to the desired height and width of the generated image. If + not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in + section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + negative_original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a specific image resolution. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a target image resolution. It should be as same + as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + aesthetic_score (`float`, *optional*, defaults to 6.0): + Used to simulate an aesthetic score of the generated image by influencing the positive text condition. + Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + negative_aesthetic_score (`float`, *optional*, defaults to 2.5): + Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). Can be used to + simulate an aesthetic score of the generated image by influencing the negative text condition. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput`] if `return_dict` is True, otherwise a + `tuple. `tuple. When returning a tuple, the first element is a list with the generated images. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # 1. Check inputs + self.check_inputs( + prompt, + prompt_2, + image, + mask_image, + height, + width, + strength, + callback_steps, + output_type, + negative_prompt, + negative_prompt_2, + prompt_embeds, + negative_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + callback_on_step_end_tensor_inputs, + padding_mask_crop, + ) + + self._guidance_scale = guidance_scale + self._guidance_rescale = guidance_rescale + self._clip_skip = clip_skip + self._cross_attention_kwargs = cross_attention_kwargs + self._denoising_end = denoising_end + self._denoising_start = denoising_start + self._interrupt = False + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3. Encode input prompt + text_encoder_lora_scale = ( + self.cross_attention_kwargs.get("scale", None) if self.cross_attention_kwargs is not None else None + ) + + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=self.clip_skip, + ) + + # 4. set timesteps + def denoising_value_valid(dnv): + return isinstance(dnv, float) and 0 < dnv < 1 + + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + timesteps, num_inference_steps = self.get_timesteps( + num_inference_steps, + strength, + device, + denoising_start=self.denoising_start if denoising_value_valid(self.denoising_start) else None, + ) + # check that number of inference steps is not < 1 - as this doesn't make sense + if num_inference_steps < 1: + raise ValueError( + f"After adjusting the num_inference_steps by strength parameter: {strength}, the number of pipeline" + f"steps is {num_inference_steps} which is < 1 and not appropriate for this pipeline." + ) + # at which timestep to set the initial noise (n.b. 50% if strength is 0.5) + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + # create a boolean to check if the strength is set to 1. if so then initialise the latents with pure noise + is_strength_max = strength == 1.0 + + # 5. Preprocess mask and image + if padding_mask_crop is not None: + crops_coords = self.mask_processor.get_crop_region(mask_image, width, height, pad=padding_mask_crop) + resize_mode = "fill" + else: + crops_coords = None + resize_mode = "default" + + original_image = image + init_image = self.image_processor.preprocess( + image, height=height, width=width, crops_coords=crops_coords, resize_mode=resize_mode + ) + init_image = init_image.to(dtype=torch.float32) + + mask = self.mask_processor.preprocess( + mask_image, height=height, width=width, resize_mode=resize_mode, crops_coords=crops_coords + ) + + if masked_image_latents is not None: + masked_image = masked_image_latents + elif init_image.shape[1] == 4: + # if images are in latent space, we can't mask it + masked_image = None + else: + masked_image = init_image * (mask < 0.5) + + # 6. Prepare latent variables + num_channels_latents = self.vae.config.latent_channels + num_channels_unet = self.unet.config.in_channels + return_image_latents = num_channels_unet == 4 + + add_noise = True if self.denoising_start is None else False + latents_outputs = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + image=init_image, + timestep=latent_timestep, + is_strength_max=is_strength_max, + add_noise=add_noise, + return_noise=True, + return_image_latents=return_image_latents, + ) + + if return_image_latents: + latents, noise, image_latents = latents_outputs + else: + latents, noise = latents_outputs + + # 7. Prepare mask latent variables + mask, masked_image_latents = self.prepare_mask_latents( + mask, + masked_image, + batch_size * num_images_per_prompt, + height, + width, + prompt_embeds.dtype, + device, + generator, + self.do_classifier_free_guidance, + ) + + # 8. Check that sizes of mask, masked image and latents match + if num_channels_unet == 9: + # default case for stable-diffusion-v1-5/stable-diffusion-inpainting + num_channels_mask = mask.shape[1] + num_channels_masked_image = masked_image_latents.shape[1] + if num_channels_latents + num_channels_mask + num_channels_masked_image != self.unet.config.in_channels: + raise ValueError( + f"Incorrect configuration settings! The config of `pipeline.unet`: {self.unet.config} expects" + f" {self.unet.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_mask`: {num_channels_mask} + `num_channels_masked_image`: {num_channels_masked_image}" + f" = {num_channels_latents + num_channels_masked_image + num_channels_mask}. Please verify the config of" + " `pipeline.unet` or your `mask_image` or `image` input." + ) + elif num_channels_unet != 4: + raise ValueError( + f"The unet {self.unet.__class__} should have either 4 or 9 input channels, not {self.unet.config.in_channels}." + ) + # 8.1 Prepare extra step kwargs. + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 9. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + height, width = latents.shape[-2:] + height = height * self.vae_scale_factor + width = width * self.vae_scale_factor + + original_size = original_size or (height, width) + target_size = target_size or (height, width) + + # 10. Prepare added time ids & embeddings + if negative_original_size is None: + negative_original_size = original_size + if negative_target_size is None: + negative_target_size = target_size + + add_text_embeds = pooled_prompt_embeds + if self.text_encoder_2 is None: + text_encoder_projection_dim = int(pooled_prompt_embeds.shape[-1]) + else: + text_encoder_projection_dim = self.text_encoder_2.config.projection_dim + + add_time_ids, add_neg_time_ids = self._get_add_time_ids( + original_size, + crops_coords_top_left, + target_size, + aesthetic_score, + negative_aesthetic_score, + negative_original_size, + negative_crops_coords_top_left, + negative_target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + add_time_ids = add_time_ids.repeat(batch_size * num_images_per_prompt, 1) + + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) + add_neg_time_ids = add_neg_time_ids.repeat(batch_size * num_images_per_prompt, 1) + add_time_ids = torch.cat([add_neg_time_ids, add_time_ids], dim=0) + + prompt_embeds = prompt_embeds.to(device) + add_text_embeds = add_text_embeds.to(device) + add_time_ids = add_time_ids.to(device) + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 11. Denoising loop + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + + if ( + self.denoising_end is not None + and self.denoising_start is not None + and denoising_value_valid(self.denoising_end) + and denoising_value_valid(self.denoising_start) + and self.denoising_start >= self.denoising_end + ): + raise ValueError( + f"`denoising_start`: {self.denoising_start} cannot be larger than or equal to `denoising_end`: " + + f" {self.denoising_end} when using type float." + ) + elif self.denoising_end is not None and denoising_value_valid(self.denoising_end): + discrete_timestep_cutoff = int( + round( + self.scheduler.config.num_train_timesteps + - (self.denoising_end * self.scheduler.config.num_train_timesteps) + ) + ) + num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) + timesteps = timesteps[:num_inference_steps] + + # 11.1 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + + # concat latents, mask, masked_image_latents in the channel dimension + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + if num_channels_unet == 9: + latent_model_input = torch.cat([latent_model_input, mask, masked_image_latents], dim=1) + + # predict the noise residual + added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + added_cond_kwargs["image_embeds"] = image_embeds + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=self.cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond) + + if self.do_classifier_free_guidance and self.guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=self.guidance_rescale) + + # compute the previous noisy sample x_t -> x_t-1 + latents_dtype = latents.dtype + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + if latents.dtype != latents_dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + latents = latents.to(latents_dtype) + + if num_channels_unet == 4: + init_latents_proper = image_latents + if self.do_classifier_free_guidance: + init_mask, _ = mask.chunk(2) + else: + init_mask = mask + + if i < len(timesteps) - 1: + noise_timestep = timesteps[i + 1] + init_latents_proper = self.scheduler.add_noise( + init_latents_proper, noise, torch.tensor([noise_timestep]) + ) + + latents = (1 - init_mask) * init_latents_proper + init_mask * latents + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + add_text_embeds = callback_outputs.pop("add_text_embeds", add_text_embeds) + add_time_ids = callback_outputs.pop("add_time_ids", add_time_ids) + mask = callback_outputs.pop("mask", mask) + masked_image_latents = callback_outputs.pop("masked_image_latents", masked_image_latents) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + + if needs_upcasting: + self.upcast_vae() + latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) + elif latents.dtype != self.vae.dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + self.vae = self.vae.to(latents.dtype) + + # unscale/denormalize the latents + # denormalize with the mean and std if available and not None + has_latents_mean = hasattr(self.vae.config, "latents_mean") and self.vae.config.latents_mean is not None + has_latents_std = hasattr(self.vae.config, "latents_std") and self.vae.config.latents_std is not None + if has_latents_mean and has_latents_std: + latents_mean = ( + torch.tensor(self.vae.config.latents_mean).view(1, 4, 1, 1).to(latents.device, latents.dtype) + ) + latents_std = ( + torch.tensor(self.vae.config.latents_std).view(1, 4, 1, 1).to(latents.device, latents.dtype) + ) + latents = latents * latents_std / self.vae.config.scaling_factor + latents_mean + else: + latents = latents / self.vae.config.scaling_factor + + image = self.vae.decode(latents, return_dict=False)[0] + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + else: + return StableDiffusionXLPipelineOutput(images=latents) + + # apply watermark if available + if self.watermark is not None: + image = self.watermark.apply_watermark(image) + + image = self.image_processor.postprocess(image, output_type=output_type) + + if padding_mask_crop is not None: + image = [self.image_processor.apply_overlay(mask_image, original_image, i, crops_coords) for i in image] + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusionXLPipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_instruct_pix2pix.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_instruct_pix2pix.py new file mode 100644 index 0000000000000000000000000000000000000000..58b0083617822d7dd36de3e48f6da590a0fcdf94 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/pipeline_stable_diffusion_xl_instruct_pix2pix.py @@ -0,0 +1,1000 @@ +# Copyright 2025 Harutatsu Akiyama and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import PIL.Image +import torch +from transformers import CLIPTextModel, CLIPTextModelWithProjection, CLIPTokenizer + +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import FromSingleFileMixin, StableDiffusionXLLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.attention_processor import ( + AttnProcessor2_0, + FusedAttnProcessor2_0, + XFormersAttnProcessor, +) +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_invisible_watermark_available, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from .pipeline_output import StableDiffusionXLPipelineOutput + + +if is_invisible_watermark_available(): + from .watermark import StableDiffusionXLWatermarker + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import StableDiffusionXLInstructPix2PixPipeline + >>> from diffusers.utils import load_image + + >>> resolution = 768 + >>> image = load_image( + ... "https://hf.co/datasets/diffusers/diffusers-images-docs/resolve/main/mountain.png" + ... ).resize((resolution, resolution)) + >>> edit_instruction = "Turn sky into a cloudy one" + + >>> pipe = StableDiffusionXLInstructPix2PixPipeline.from_pretrained( + ... "diffusers/sdxl-instructpix2pix-768", torch_dtype=torch.float16 + ... ).to("cuda") + + >>> edited_image = pipe( + ... prompt=edit_instruction, + ... image=image, + ... height=resolution, + ... width=resolution, + ... guidance_scale=3.0, + ... image_guidance_scale=1.5, + ... num_inference_steps=30, + ... ).images[0] + >>> edited_image + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + """ + Rescale `noise_cfg` according to `guidance_rescale`. Based on findings of [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891). See Section 3.4 + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +class StableDiffusionXLInstructPix2PixPipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + FromSingleFileMixin, + StableDiffusionXLLoraLoaderMixin, +): + r""" + Pipeline for pixel-level image editing by following text instructions. Based on Stable Diffusion XL. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion XL uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + text_encoder_2 ([` CLIPTextModelWithProjection`]): + Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + requires_aesthetics_score (`bool`, *optional*, defaults to `"False"`): + Whether the `unet` requires a aesthetic_score condition to be passed during inference. Also see the config + of `stabilityai/stable-diffusion-xl-refiner-1-0`. + force_zeros_for_empty_prompt (`bool`, *optional*, defaults to `"True"`): + Whether the negative prompt embeddings shall be forced to always be set to 0. Also see the config of + `stabilityai/stable-diffusion-xl-base-1-0`. + add_watermarker (`bool`, *optional*): + Whether to use the [invisible_watermark library](https://github.com/ShieldMnt/invisible-watermark/) to + watermark output images. If not defined, it will default to True if the package is installed, otherwise no + watermarker will be used. + is_cosxl_edit (`bool`, *optional*): + When set the image latents are scaled. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->unet->vae" + _optional_components = ["tokenizer", "tokenizer_2", "text_encoder", "text_encoder_2"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + tokenizer_2: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + force_zeros_for_empty_prompt: bool = True, + add_watermarker: Optional[bool] = None, + is_cosxl_edit: Optional[bool] = False, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + unet=unet, + scheduler=scheduler, + ) + self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.default_sample_size = ( + self.unet.config.sample_size + if hasattr(self, "unet") and self.unet is not None and hasattr(self.unet.config, "sample_size") + else 128 + ) + self.is_cosxl_edit = is_cosxl_edit + + add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available() + + if add_watermarker: + self.watermark = StableDiffusionXLWatermarker() + else: + self.watermark = None + + def encode_prompt( + self, + prompt: str, + prompt_2: Optional[str] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[str] = None, + negative_prompt_2: Optional[str] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionXLLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale) + else: + scale_lora_layers(self.text_encoder_2, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # Define tokenizers and text encoders + tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] + text_encoders = ( + [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] + ) + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + # textual inversion: process multi-vector tokens if necessary + prompt_embeds_list = [] + prompts = [prompt, prompt_2] + for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, tokenizer) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = text_encoder( + text_input_ids.to(device), + output_hidden_states=True, + ) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if pooled_prompt_embeds is None and prompt_embeds[0].ndim == 2: + pooled_prompt_embeds = prompt_embeds[0] + + prompt_embeds = prompt_embeds.hidden_states[-2] + + prompt_embeds_list.append(prompt_embeds) + + prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) + + # get unconditional embeddings for classifier free guidance + zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt + if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: + negative_prompt_embeds = torch.zeros_like(prompt_embeds) + negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) + elif do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + + uncond_tokens: List[str] + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt, negative_prompt_2] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = [negative_prompt, negative_prompt_2] + + negative_prompt_embeds_list = [] + for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = tokenizer( + negative_prompt, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + negative_prompt_embeds = text_encoder( + uncond_input.input_ids.to(device), + output_hidden_states=True, + ) + # We are only ALWAYS interested in the pooled output of the final text encoder + if negative_pooled_prompt_embeds is None and negative_prompt_embeds[0].ndim == 2: + negative_pooled_prompt_embeds = negative_prompt_embeds[0] + negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] + + negative_prompt_embeds_list.append(negative_prompt_embeds) + + negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) + + prompt_embeds_dtype = self.text_encoder_2.dtype if self.text_encoder_2 is not None else self.unet.dtype + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + if do_classifier_free_guidance: + negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def prepare_image_latents( + self, image, batch_size, num_images_per_prompt, dtype, device, do_classifier_free_guidance, generator=None + ): + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + image = image.to(device=device, dtype=dtype) + + batch_size = batch_size * num_images_per_prompt + + if image.shape[1] == 4: + image_latents = image + else: + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + if needs_upcasting: + image = image.float() + self.upcast_vae() + + image_latents = retrieve_latents(self.vae.encode(image), sample_mode="argmax") + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + + if batch_size > image_latents.shape[0] and batch_size % image_latents.shape[0] == 0: + # expand image_latents for batch_size + deprecation_message = ( + f"You have passed {batch_size} text prompts (`prompt`), but only {image_latents.shape[0]} initial" + " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" + " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" + " your script to pass as many initial images as text prompts to suppress this warning." + ) + deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) + additional_image_per_prompt = batch_size // image_latents.shape[0] + image_latents = torch.cat([image_latents] * additional_image_per_prompt, dim=0) + elif batch_size > image_latents.shape[0] and batch_size % image_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {image_latents.shape[0]} to {batch_size} text prompts." + ) + else: + image_latents = torch.cat([image_latents], dim=0) + + if do_classifier_free_guidance: + uncond_image_latents = torch.zeros_like(image_latents) + image_latents = torch.cat([image_latents, image_latents, uncond_image_latents], dim=0) + + if image_latents.dtype != self.vae.dtype: + image_latents = image_latents.to(dtype=self.vae.dtype) + + if self.is_cosxl_edit: + image_latents = image_latents * self.vae.config.scaling_factor + + return image_latents + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline._get_add_time_ids + def _get_add_time_ids( + self, original_size, crops_coords_top_left, target_size, dtype, text_encoder_projection_dim=None + ): + add_time_ids = list(original_size + crops_coords_top_left + target_size) + + passed_add_embed_dim = ( + self.unet.config.addition_time_embed_dim * len(add_time_ids) + text_encoder_projection_dim + ) + expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features + + if expected_add_embed_dim != passed_add_embed_dim: + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." + ) + + add_time_ids = torch.tensor([add_time_ids], dtype=dtype) + return add_time_ids + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.upcast_vae + def upcast_vae(self): + dtype = self.vae.dtype + self.vae.to(dtype=torch.float32) + use_torch_2_0_or_xformers = isinstance( + self.vae.decoder.mid_block.attentions[0].processor, + ( + AttnProcessor2_0, + XFormersAttnProcessor, + FusedAttnProcessor2_0, + ), + ) + # if xformers or torch_2_0 is used attention block does not need + # to be in float32 which can save lots of memory + if use_torch_2_0_or_xformers: + self.vae.post_quant_conv.to(dtype) + self.vae.decoder.conv_in.to(dtype) + self.vae.decoder.mid_block.to(dtype) + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + image: PipelineImageInput = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 100, + denoising_end: Optional[float] = None, + guidance_scale: float = 5.0, + image_guidance_scale: float = 1.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + original_size: Tuple[int, int] = None, + crops_coords_top_left: Tuple[int, int] = (0, 0), + target_size: Tuple[int, int] = None, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + image (`torch.Tensor` or `PIL.Image.Image` or `np.ndarray` or `List[torch.Tensor]` or `List[PIL.Image.Image]` or `List[np.ndarray]`): + The image(s) to modify with the pipeline. + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + denoising_end (`float`, *optional*): + When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be + completed before it is intentionally prematurely terminated. As a result, the returned sample will + still retain a substantial amount of noise as determined by the discrete timesteps selected by the + scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a + "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image + Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) + guidance_scale (`float`, *optional*, defaults to 5.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + image_guidance_scale (`float`, *optional*, defaults to 1.5): + Image guidance scale is to push the generated image towards the initial image `image`. Image guidance + scale is enabled by setting `image_guidance_scale > 1`. Higher image guidance scale encourages to + generate images that are closely linked to the source image `image`, usually at the expense of lower + image quality. This pipeline requires a value of at least `1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput`] instead of a + plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + guidance_rescale (`float`, *optional*, defaults to 0.0): + Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891) `guidance_scale` is defined as `φ` in equation 16. of + [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when + using zero terminal SNR. + original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. + `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as + explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position + `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting + `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + For most cases, `target_size` should be set to the desired height and width of the generated image. If + not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in + section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + aesthetic_score (`float`, *optional*, defaults to 6.0): + Used to simulate an aesthetic score of the generated image by influencing the positive text condition. + Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + negative_aesthetic_score (`float`, *optional*, defaults to 2.5): + Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). Can be used to + simulate an aesthetic score of the generated image by influencing the negative text condition. + + Examples: + + Returns: + [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + # 0. Default height and width to unet + height = height or self.default_sample_size * self.vae_scale_factor + width = width or self.default_sample_size * self.vae_scale_factor + + original_size = original_size or (height, width) + target_size = target_size or (height, width) + + # 1. Check inputs. Raise error if not correct + self.check_inputs(prompt, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds) + + if image is None: + raise ValueError("`image` input cannot be undefined.") + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 and image_guidance_scale >= 1.0 + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + lora_scale=text_encoder_lora_scale, + ) + + # 4. Preprocess image + image = self.image_processor.preprocess(image, height=height, width=width).to(device) + + # 5. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 6. Prepare Image latents + image_latents = self.prepare_image_latents( + image, + batch_size, + num_images_per_prompt, + prompt_embeds.dtype, + device, + do_classifier_free_guidance, + ) + + # 7. Prepare latent variables + num_channels_latents = self.vae.config.latent_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 8. Check that shapes of latents and image match the UNet channels + num_channels_image = image_latents.shape[1] + if num_channels_latents + num_channels_image != self.unet.config.in_channels: + raise ValueError( + f"Incorrect configuration settings! The config of `pipeline.unet`: {self.unet.config} expects" + f" {self.unet.config.in_channels} but received `num_channels_latents`: {num_channels_latents} +" + f" `num_channels_image`: {num_channels_image} " + f" = {num_channels_latents + num_channels_image}. Please verify the config of" + " `pipeline.unet` or your `image` input." + ) + + # 9. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 10. Prepare added time ids & embeddings + add_text_embeds = pooled_prompt_embeds + if self.text_encoder_2 is None: + text_encoder_projection_dim = int(pooled_prompt_embeds.shape[-1]) + else: + text_encoder_projection_dim = self.text_encoder_2.config.projection_dim + + add_time_ids = self._get_add_time_ids( + original_size, + crops_coords_top_left, + target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + + if do_classifier_free_guidance: + # The extra concat similar to how it's done in SD InstructPix2Pix. + prompt_embeds = torch.cat([prompt_embeds, negative_prompt_embeds, negative_prompt_embeds], dim=0) + add_text_embeds = torch.cat( + [add_text_embeds, negative_pooled_prompt_embeds, negative_pooled_prompt_embeds], dim=0 + ) + add_time_ids = torch.cat([add_time_ids, add_time_ids, add_time_ids], dim=0) + + prompt_embeds = prompt_embeds.to(device) + add_text_embeds = add_text_embeds.to(device) + add_time_ids = add_time_ids.to(device).repeat(batch_size * num_images_per_prompt, 1) + + # 11. Denoising loop + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + if denoising_end is not None and isinstance(denoising_end, float) and denoising_end > 0 and denoising_end < 1: + discrete_timestep_cutoff = int( + round( + self.scheduler.config.num_train_timesteps + - (denoising_end * self.scheduler.config.num_train_timesteps) + ) + ) + num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) + timesteps = timesteps[:num_inference_steps] + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # Expand the latents if we are doing classifier free guidance. + # The latents are expanded 3 times because for pix2pix the guidance + # is applied for both the text and the input image. + latent_model_input = torch.cat([latents] * 3) if do_classifier_free_guidance else latents + + # concat latents, image_latents in the channel dimension + scaled_latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + scaled_latent_model_input = torch.cat([scaled_latent_model_input, image_latents], dim=1) + + # predict the noise residual + added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} + noise_pred = self.unet( + scaled_latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_text, noise_pred_image, noise_pred_uncond = noise_pred.chunk(3) + noise_pred = ( + noise_pred_uncond + + guidance_scale * (noise_pred_text - noise_pred_image) + + image_guidance_scale * (noise_pred_image - noise_pred_uncond) + ) + + if do_classifier_free_guidance and guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) + + # compute the previous noisy sample x_t -> x_t-1 + latents_dtype = latents.dtype + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + if latents.dtype != latents_dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + latents = latents.to(latents_dtype) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + + if needs_upcasting: + self.upcast_vae() + latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) + elif latents.dtype != self.vae.dtype: + if torch.backends.mps.is_available(): + # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + self.vae = self.vae.to(latents.dtype) + + # unscale/denormalize the latents + # denormalize with the mean and std if available and not None + has_latents_mean = hasattr(self.vae.config, "latents_mean") and self.vae.config.latents_mean is not None + has_latents_std = hasattr(self.vae.config, "latents_std") and self.vae.config.latents_std is not None + if has_latents_mean and has_latents_std: + latents_mean = ( + torch.tensor(self.vae.config.latents_mean).view(1, 4, 1, 1).to(latents.device, latents.dtype) + ) + latents_std = ( + torch.tensor(self.vae.config.latents_std).view(1, 4, 1, 1).to(latents.device, latents.dtype) + ) + latents = latents * latents_std / self.vae.config.scaling_factor + latents_mean + else: + latents = latents / self.vae.config.scaling_factor + + image = self.vae.decode(latents, return_dict=False)[0] + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + else: + return StableDiffusionXLPipelineOutput(images=latents) + + # apply watermark if available + if self.watermark is not None: + image = self.watermark.apply_watermark(image) + + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusionXLPipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/watermark.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/watermark.py new file mode 100644 index 0000000000000000000000000000000000000000..70d06bb6320d890ea90542cc7551bc42d7c59451 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_diffusion_xl/watermark.py @@ -0,0 +1,42 @@ +import numpy as np +import torch + +from ...utils import is_invisible_watermark_available + + +if is_invisible_watermark_available(): + from imwatermark import WatermarkEncoder + + +# Copied from https://github.com/Stability-AI/generative-models/blob/613af104c6b85184091d42d374fef420eddb356d/scripts/demo/streamlit_helpers.py#L66 +WATERMARK_MESSAGE = 0b101100111110110010010000011110111011000110011110 +# bin(x)[2:] gives bits of x as str, use int to convert them to 0/1 +WATERMARK_BITS = [int(bit) for bit in bin(WATERMARK_MESSAGE)[2:]] + + +class StableDiffusionXLWatermarker: + def __init__(self): + self.watermark = WATERMARK_BITS + self.encoder = WatermarkEncoder() + + self.encoder.set_watermark("bits", self.watermark) + + def apply_watermark(self, images: torch.Tensor): + # can't encode images that are smaller than 256 + if images.shape[-1] < 256: + return images + + images = (255 * (images / 2 + 0.5)).cpu().permute(0, 2, 3, 1).float().numpy() + + # Convert RGB to BGR, which is the channel order expected by the watermark encoder. + images = images[:, :, :, ::-1] + + # Add watermark and convert BGR back to RGB + images = [self.encoder.encode(image, "dwtDct")[:, :, ::-1] for image in images] + + images = np.array(images) + + images = torch.from_numpy(images).permute(0, 3, 1, 2) + + images = torch.clamp(2 * (images / 255 - 0.5), min=-1.0, max=1.0) + return images diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_video_diffusion/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_video_diffusion/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..3bd4dc78966e217d85769691b98ed8fb0b6ac05c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_video_diffusion/__init__.py @@ -0,0 +1,58 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + BaseOutput, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure.update( + { + "pipeline_stable_video_diffusion": [ + "StableVideoDiffusionPipeline", + "StableVideoDiffusionPipelineOutput", + ], + } + ) + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_stable_video_diffusion import ( + StableVideoDiffusionPipeline, + StableVideoDiffusionPipelineOutput, + ) + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_video_diffusion/pipeline_stable_video_diffusion.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_video_diffusion/pipeline_stable_video_diffusion.py new file mode 100644 index 0000000000000000000000000000000000000000..6d9053faaec8a8af0fce4b941b25667473a5e4a8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/stable_video_diffusion/pipeline_stable_video_diffusion.py @@ -0,0 +1,737 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from dataclasses import dataclass +from typing import Callable, Dict, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPVisionModelWithProjection + +from ...image_processor import PipelineImageInput +from ...models import AutoencoderKLTemporalDecoder, UNetSpatioTemporalConditionModel +from ...schedulers import EulerDiscreteScheduler +from ...utils import BaseOutput, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import is_compiled_module, randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> from diffusers import StableVideoDiffusionPipeline + >>> from diffusers.utils import load_image, export_to_video + + >>> pipe = StableVideoDiffusionPipeline.from_pretrained( + ... "stabilityai/stable-video-diffusion-img2vid-xt", torch_dtype=torch.float16, variant="fp16" + ... ) + >>> pipe.to("cuda") + + >>> image = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/svd-docstring-example.jpeg" + ... ) + >>> image = image.resize((1024, 576)) + + >>> frames = pipe(image, num_frames=25, decode_chunk_size=8).frames[0] + >>> export_to_video(frames, "generated.mp4", fps=7) + ``` +""" + + +def _append_dims(x, target_dims): + """Appends dimensions to the end of a tensor until it has target_dims dimensions.""" + dims_to_append = target_dims - x.ndim + if dims_to_append < 0: + raise ValueError(f"input has {x.ndim} dims but target_dims is {target_dims}, which is less") + return x[(...,) + (None,) * dims_to_append] + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +@dataclass +class StableVideoDiffusionPipelineOutput(BaseOutput): + r""" + Output class for Stable Video Diffusion pipeline. + + Args: + frames (`[List[List[PIL.Image.Image]]`, `np.ndarray`, `torch.Tensor`]): + List of denoised PIL images of length `batch_size` or numpy array or torch tensor of shape `(batch_size, + num_frames, height, width, num_channels)`. + """ + + frames: Union[List[List[PIL.Image.Image]], np.ndarray, torch.Tensor] + + +class StableVideoDiffusionPipeline(DiffusionPipeline): + r""" + Pipeline to generate video from an input image using Stable Video Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`AutoencoderKLTemporalDecoder`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. + image_encoder ([`~transformers.CLIPVisionModelWithProjection`]): + Frozen CLIP image-encoder + ([laion/CLIP-ViT-H-14-laion2B-s32B-b79K](https://huggingface.co/laion/CLIP-ViT-H-14-laion2B-s32B-b79K)). + unet ([`UNetSpatioTemporalConditionModel`]): + A `UNetSpatioTemporalConditionModel` to denoise the encoded image latents. + scheduler ([`EulerDiscreteScheduler`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + A `CLIPImageProcessor` to extract features from generated images. + """ + + model_cpu_offload_seq = "image_encoder->unet->vae" + _callback_tensor_inputs = ["latents"] + + def __init__( + self, + vae: AutoencoderKLTemporalDecoder, + image_encoder: CLIPVisionModelWithProjection, + unet: UNetSpatioTemporalConditionModel, + scheduler: EulerDiscreteScheduler, + feature_extractor: CLIPImageProcessor, + ): + super().__init__() + + self.register_modules( + vae=vae, + image_encoder=image_encoder, + unet=unet, + scheduler=scheduler, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(do_resize=True, vae_scale_factor=self.vae_scale_factor) + + def _encode_image( + self, + image: PipelineImageInput, + device: Union[str, torch.device], + num_videos_per_prompt: int, + do_classifier_free_guidance: bool, + ) -> torch.Tensor: + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.video_processor.pil_to_numpy(image) + image = self.video_processor.numpy_to_pt(image) + + # We normalize the image before resizing to match with the original implementation. + # Then we unnormalize it after resizing. + image = image * 2.0 - 1.0 + image = _resize_with_antialiasing(image, (224, 224)) + image = (image + 1.0) / 2.0 + + # Normalize the image with for CLIP input + image = self.feature_extractor( + images=image, + do_normalize=True, + do_center_crop=False, + do_resize=False, + do_rescale=False, + return_tensors="pt", + ).pixel_values + + image = image.to(device=device, dtype=dtype) + image_embeddings = self.image_encoder(image).image_embeds + image_embeddings = image_embeddings.unsqueeze(1) + + # duplicate image embeddings for each generation per prompt, using mps friendly method + bs_embed, seq_len, _ = image_embeddings.shape + image_embeddings = image_embeddings.repeat(1, num_videos_per_prompt, 1) + image_embeddings = image_embeddings.view(bs_embed * num_videos_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + negative_image_embeddings = torch.zeros_like(image_embeddings) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + image_embeddings = torch.cat([negative_image_embeddings, image_embeddings]) + + return image_embeddings + + def _encode_vae_image( + self, + image: torch.Tensor, + device: Union[str, torch.device], + num_videos_per_prompt: int, + do_classifier_free_guidance: bool, + ): + image = image.to(device=device) + image_latents = self.vae.encode(image).latent_dist.mode() + + # duplicate image_latents for each generation per prompt, using mps friendly method + image_latents = image_latents.repeat(num_videos_per_prompt, 1, 1, 1) + + if do_classifier_free_guidance: + negative_image_latents = torch.zeros_like(image_latents) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + image_latents = torch.cat([negative_image_latents, image_latents]) + + return image_latents + + def _get_add_time_ids( + self, + fps: int, + motion_bucket_id: int, + noise_aug_strength: float, + dtype: torch.dtype, + batch_size: int, + num_videos_per_prompt: int, + do_classifier_free_guidance: bool, + ): + add_time_ids = [fps, motion_bucket_id, noise_aug_strength] + + passed_add_embed_dim = self.unet.config.addition_time_embed_dim * len(add_time_ids) + expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features + + if expected_add_embed_dim != passed_add_embed_dim: + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." + ) + + add_time_ids = torch.tensor([add_time_ids], dtype=dtype) + add_time_ids = add_time_ids.repeat(batch_size * num_videos_per_prompt, 1) + + if do_classifier_free_guidance: + add_time_ids = torch.cat([add_time_ids, add_time_ids]) + + return add_time_ids + + def decode_latents(self, latents: torch.Tensor, num_frames: int, decode_chunk_size: int = 14): + # [batch, frames, channels, height, width] -> [batch*frames, channels, height, width] + latents = latents.flatten(0, 1) + + latents = 1 / self.vae.config.scaling_factor * latents + + forward_vae_fn = self.vae._orig_mod.forward if is_compiled_module(self.vae) else self.vae.forward + accepts_num_frames = "num_frames" in set(inspect.signature(forward_vae_fn).parameters.keys()) + + # decode decode_chunk_size frames at a time to avoid OOM + frames = [] + for i in range(0, latents.shape[0], decode_chunk_size): + num_frames_in = latents[i : i + decode_chunk_size].shape[0] + decode_kwargs = {} + if accepts_num_frames: + # we only pass num_frames_in if it's expected + decode_kwargs["num_frames"] = num_frames_in + + frame = self.vae.decode(latents[i : i + decode_chunk_size], **decode_kwargs).sample + frames.append(frame) + frames = torch.cat(frames, dim=0) + + # [batch*frames, channels, height, width] -> [batch, channels, frames, height, width] + frames = frames.reshape(-1, num_frames, *frames.shape[1:]).permute(0, 2, 1, 3, 4) + + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + frames = frames.float() + return frames + + def check_inputs(self, image, height, width): + if ( + not isinstance(image, torch.Tensor) + and not isinstance(image, PIL.Image.Image) + and not isinstance(image, list) + ): + raise ValueError( + "`image` has to be of type `torch.Tensor` or `PIL.Image.Image` or `List[PIL.Image.Image]` but is" + f" {type(image)}" + ) + + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + def prepare_latents( + self, + batch_size: int, + num_frames: int, + num_channels_latents: int, + height: int, + width: int, + dtype: torch.dtype, + device: Union[str, torch.device], + generator: torch.Generator, + latents: Optional[torch.Tensor] = None, + ): + shape = ( + batch_size, + num_frames, + num_channels_latents // 2, + height // self.vae_scale_factor, + width // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + @property + def guidance_scale(self): + return self._guidance_scale + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + if isinstance(self.guidance_scale, (int, float)): + return self.guidance_scale > 1 + return self.guidance_scale.max() > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image: Union[PIL.Image.Image, List[PIL.Image.Image], torch.Tensor], + height: int = 576, + width: int = 1024, + num_frames: Optional[int] = None, + num_inference_steps: int = 25, + sigmas: Optional[List[float]] = None, + min_guidance_scale: float = 1.0, + max_guidance_scale: float = 3.0, + fps: int = 7, + motion_bucket_id: int = 127, + noise_aug_strength: float = 0.02, + decode_chunk_size: Optional[int] = None, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + return_dict: bool = True, + ): + r""" + The call function to the pipeline for generation. + + Args: + image (`PIL.Image.Image` or `List[PIL.Image.Image]` or `torch.Tensor`): + Image(s) to guide image generation. If you provide a tensor, the expected value range is between `[0, + 1]`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_frames (`int`, *optional*): + The number of video frames to generate. Defaults to `self.unet.config.num_frames` (14 for + `stable-video-diffusion-img2vid` and to 25 for `stable-video-diffusion-img2vid-xt`). + num_inference_steps (`int`, *optional*, defaults to 25): + The number of denoising steps. More denoising steps usually lead to a higher quality video at the + expense of slower inference. This parameter is modulated by `strength`. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + min_guidance_scale (`float`, *optional*, defaults to 1.0): + The minimum guidance scale. Used for the classifier free guidance with first frame. + max_guidance_scale (`float`, *optional*, defaults to 3.0): + The maximum guidance scale. Used for the classifier free guidance with last frame. + fps (`int`, *optional*, defaults to 7): + Frames per second. The rate at which the generated images shall be exported to a video after + generation. Note that Stable Diffusion Video's UNet was micro-conditioned on fps-1 during training. + motion_bucket_id (`int`, *optional*, defaults to 127): + Used for conditioning the amount of motion for the generation. The higher the number the more motion + will be in the video. + noise_aug_strength (`float`, *optional*, defaults to 0.02): + The amount of noise added to the init image, the higher it is the less the video will look like the + init image. Increase it for more motion. + decode_chunk_size (`int`, *optional*): + The number of frames to decode at a time. Higher chunk size leads to better temporal consistency at the + expense of more memory usage. By default, the decoder decodes all frames at once for maximal quality. + For lower memory usage, reduce `decode_chunk_size`. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of videos to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for video + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `pil`, `np` or `pt`. + callback_on_step_end (`Callable`, *optional*): + A function that is called at the end of each denoising step during inference. The function is called + with the following arguments: + `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. + `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a + plain tuple. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableVideoDiffusionPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.stable_diffusion.StableVideoDiffusionPipelineOutput`] is + returned, otherwise a `tuple` of (`List[List[PIL.Image.Image]]` or `np.ndarray` or `torch.Tensor`) is + returned. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + num_frames = num_frames if num_frames is not None else self.unet.config.num_frames + decode_chunk_size = decode_chunk_size if decode_chunk_size is not None else num_frames + + # 1. Check inputs. Raise error if not correct + self.check_inputs(image, height, width) + + # 2. Define call parameters + if isinstance(image, PIL.Image.Image): + batch_size = 1 + elif isinstance(image, list): + batch_size = len(image) + else: + batch_size = image.shape[0] + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + self._guidance_scale = max_guidance_scale + + # 3. Encode input image + image_embeddings = self._encode_image(image, device, num_videos_per_prompt, self.do_classifier_free_guidance) + + # NOTE: Stable Video Diffusion was conditioned on fps - 1, which is why it is reduced here. + # See: https://github.com/Stability-AI/generative-models/blob/ed0997173f98eaf8f4edf7ba5fe8f15c6b877fd3/scripts/sampling/simple_video_sample.py#L188 + fps = fps - 1 + + # 4. Encode input image using VAE + image = self.video_processor.preprocess(image, height=height, width=width).to(device) + noise = randn_tensor(image.shape, generator=generator, device=device, dtype=image.dtype) + image = image + noise_aug_strength * noise + + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + if needs_upcasting: + self.vae.to(dtype=torch.float32) + + image_latents = self._encode_vae_image( + image, + device=device, + num_videos_per_prompt=num_videos_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + ) + image_latents = image_latents.to(image_embeddings.dtype) + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + + # Repeat the image latents for each frame so we can concatenate them with the noise + # image_latents [batch, channels, height, width] ->[batch, num_frames, channels, height, width] + image_latents = image_latents.unsqueeze(1).repeat(1, num_frames, 1, 1, 1) + + # 5. Get Added Time IDs + added_time_ids = self._get_add_time_ids( + fps, + motion_bucket_id, + noise_aug_strength, + image_embeddings.dtype, + batch_size, + num_videos_per_prompt, + self.do_classifier_free_guidance, + ) + added_time_ids = added_time_ids.to(device) + + # 6. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps(self.scheduler, num_inference_steps, device, None, sigmas) + + # 7. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_videos_per_prompt, + num_frames, + num_channels_latents, + height, + width, + image_embeddings.dtype, + device, + generator, + latents, + ) + + # 8. Prepare guidance scale + guidance_scale = torch.linspace(min_guidance_scale, max_guidance_scale, num_frames).unsqueeze(0) + guidance_scale = guidance_scale.to(device, latents.dtype) + guidance_scale = guidance_scale.repeat(batch_size * num_videos_per_prompt, 1) + guidance_scale = _append_dims(guidance_scale, latents.ndim) + + self._guidance_scale = guidance_scale + + # 9. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # Concatenate image_latents over channels dimension + latent_model_input = torch.cat([latent_model_input, image_latents], dim=2) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=image_embeddings, + added_time_ids=added_time_ids, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_cond = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_cond - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents).prev_sample + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + frames = self.decode_latents(latents, num_frames, decode_chunk_size) + frames = self.video_processor.postprocess_video(video=frames, output_type=output_type) + else: + frames = latents + + self.maybe_free_model_hooks() + + if not return_dict: + return frames + + return StableVideoDiffusionPipelineOutput(frames=frames) + + +# resizing utils +# TODO: clean up later +def _resize_with_antialiasing(input, size, interpolation="bicubic", align_corners=True): + h, w = input.shape[-2:] + factors = (h / size[0], w / size[1]) + + # First, we have to determine sigma + # Taken from skimage: https://github.com/scikit-image/scikit-image/blob/v0.19.2/skimage/transform/_warps.py#L171 + sigmas = ( + max((factors[0] - 1.0) / 2.0, 0.001), + max((factors[1] - 1.0) / 2.0, 0.001), + ) + + # Now kernel size. Good results are for 3 sigma, but that is kind of slow. Pillow uses 1 sigma + # https://github.com/python-pillow/Pillow/blob/master/src/libImaging/Resample.c#L206 + # But they do it in the 2 passes, which gives better results. Let's try 2 sigmas for now + ks = int(max(2.0 * 2 * sigmas[0], 3)), int(max(2.0 * 2 * sigmas[1], 3)) + + # Make sure it is odd + if (ks[0] % 2) == 0: + ks = ks[0] + 1, ks[1] + + if (ks[1] % 2) == 0: + ks = ks[0], ks[1] + 1 + + input = _gaussian_blur2d(input, ks, sigmas) + + output = torch.nn.functional.interpolate(input, size=size, mode=interpolation, align_corners=align_corners) + return output + + +def _compute_padding(kernel_size): + """Compute padding tuple.""" + # 4 or 6 ints: (padding_left, padding_right,padding_top,padding_bottom) + # https://pytorch.org/docs/stable/nn.html#torch.nn.functional.pad + if len(kernel_size) < 2: + raise AssertionError(kernel_size) + computed = [k - 1 for k in kernel_size] + + # for even kernels we need to do asymmetric padding :( + out_padding = 2 * len(kernel_size) * [0] + + for i in range(len(kernel_size)): + computed_tmp = computed[-(i + 1)] + + pad_front = computed_tmp // 2 + pad_rear = computed_tmp - pad_front + + out_padding[2 * i + 0] = pad_front + out_padding[2 * i + 1] = pad_rear + + return out_padding + + +def _filter2d(input, kernel): + # prepare kernel + b, c, h, w = input.shape + tmp_kernel = kernel[:, None, ...].to(device=input.device, dtype=input.dtype) + + tmp_kernel = tmp_kernel.expand(-1, c, -1, -1) + + height, width = tmp_kernel.shape[-2:] + + padding_shape: List[int] = _compute_padding([height, width]) + input = torch.nn.functional.pad(input, padding_shape, mode="reflect") + + # kernel and input tensor reshape to align element-wise or batch-wise params + tmp_kernel = tmp_kernel.reshape(-1, 1, height, width) + input = input.view(-1, tmp_kernel.size(0), input.size(-2), input.size(-1)) + + # convolve the tensor with the kernel. + output = torch.nn.functional.conv2d(input, tmp_kernel, groups=tmp_kernel.size(0), padding=0, stride=1) + + out = output.view(b, c, h, w) + return out + + +def _gaussian(window_size: int, sigma): + if isinstance(sigma, float): + sigma = torch.tensor([[sigma]]) + + batch_size = sigma.shape[0] + + x = (torch.arange(window_size, device=sigma.device, dtype=sigma.dtype) - window_size // 2).expand(batch_size, -1) + + if window_size % 2 == 0: + x = x + 0.5 + + gauss = torch.exp(-x.pow(2.0) / (2 * sigma.pow(2.0))) + + return gauss / gauss.sum(-1, keepdim=True) + + +def _gaussian_blur2d(input, kernel_size, sigma): + if isinstance(sigma, tuple): + sigma = torch.tensor([sigma], dtype=input.dtype) + else: + sigma = sigma.to(dtype=input.dtype) + + ky, kx = int(kernel_size[0]), int(kernel_size[1]) + bs = sigma.shape[0] + kernel_x = _gaussian(kx, sigma[:, 1].view(bs, 1)) + kernel_y = _gaussian(ky, sigma[:, 0].view(bs, 1)) + out_x = _filter2d(input, kernel_x[..., None, :]) + out = _filter2d(out_x, kernel_y[..., None]) + + return out diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..08c22a2707fe55770a519db481954881c1cad26e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/__init__.py @@ -0,0 +1,47 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_stable_diffusion_adapter"] = ["StableDiffusionAdapterPipeline"] + _import_structure["pipeline_stable_diffusion_xl_adapter"] = ["StableDiffusionXLAdapterPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * # noqa F403 + else: + from .pipeline_stable_diffusion_adapter import StableDiffusionAdapterPipeline + from .pipeline_stable_diffusion_xl_adapter import StableDiffusionXLAdapterPipeline +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/pipeline_stable_diffusion_adapter.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/pipeline_stable_diffusion_adapter.py new file mode 100644 index 0000000000000000000000000000000000000000..1ce6987114a7149ee7e56de47392c3eb629fb3da --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/pipeline_stable_diffusion_adapter.py @@ -0,0 +1,956 @@ +# Copyright 2025 TencentARC and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from dataclasses import dataclass +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer + +from ...image_processor import VaeImageProcessor +from ...loaders import FromSingleFileMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, MultiAdapter, T2IAdapter, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + PIL_INTERPOLATION, + USE_PEFT_BACKEND, + BaseOutput, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion.safety_checker import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +@dataclass +class StableDiffusionAdapterPipelineOutput(BaseOutput): + """ + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or numpy array of shape `(batch_size, height, width, + num_channels)`. PIL images or numpy array present the denoised images of the diffusion pipeline. + nsfw_content_detected (`List[bool]`) + List of flags denoting whether the corresponding generated image likely represents "not-safe-for-work" + (nsfw) content, or `None` if safety checking could not be performed. + """ + + images: Union[List[PIL.Image.Image], np.ndarray] + nsfw_content_detected: Optional[List[bool]] + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> from PIL import Image + >>> from diffusers.utils import load_image + >>> import torch + >>> from diffusers import StableDiffusionAdapterPipeline, T2IAdapter + + >>> image = load_image( + ... "https://huggingface.co/datasets/diffusers/docs-images/resolve/main/t2i-adapter/color_ref.png" + ... ) + + >>> color_palette = image.resize((8, 8)) + >>> color_palette = color_palette.resize((512, 512), resample=Image.Resampling.NEAREST) + + >>> adapter = T2IAdapter.from_pretrained("TencentARC/t2iadapter_color_sd14v1", torch_dtype=torch.float16) + >>> pipe = StableDiffusionAdapterPipeline.from_pretrained( + ... "CompVis/stable-diffusion-v1-4", + ... adapter=adapter, + ... torch_dtype=torch.float16, + ... ) + + >>> pipe.to("cuda") + + >>> out_image = pipe( + ... "At night, glowing cubes in front of the beach", + ... image=color_palette, + ... ).images[0] + ``` +""" + + +def _preprocess_adapter_image(image, height, width): + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + image = [np.array(i.resize((width, height), resample=PIL_INTERPOLATION["lanczos"])) for i in image] + image = [ + i[None, ..., None] if i.ndim == 2 else i[None, ...] for i in image + ] # expand [h, w] or [h, w, c] to [b, h, w, c] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + if image[0].ndim == 3: + image = torch.stack(image, dim=0) + elif image[0].ndim == 4: + image = torch.cat(image, dim=0) + else: + raise ValueError( + f"Invalid image tensor! Expecting image tensor with 3 or 4 dimension, but receive: {image[0].ndim}" + ) + return image + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionAdapterPipeline(DiffusionPipeline, StableDiffusionMixin, FromSingleFileMixin): + r""" + Pipeline for text-to-image generation using Stable Diffusion augmented with T2I-Adapter + https://huggingface.co/papers/2302.08453 + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + Args: + adapter ([`T2IAdapter`] or [`MultiAdapter`] or `List[T2IAdapter]`): + Provides additional conditioning to the unet during the denoising process. If you set multiple Adapter as a + list, the outputs from each Adapter are added together to create one combined additional conditioning. + adapter_weights (`List[float]`, *optional*, defaults to None): + List of floats representing the weight which will be multiply to each adapter's output before adding them + together. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please, refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + details. + feature_extractor ([`CLIPImageProcessor`]): + Model that extracts features from generated images to be used as inputs for the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->adapter->unet->vae" + _optional_components = ["safety_checker", "feature_extractor"] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + adapter: Union[T2IAdapter, MultiAdapter, List[T2IAdapter]], + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + + if safety_checker is not None and feature_extractor is None: + raise ValueError( + "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety" + " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead." + ) + + if isinstance(adapter, (list, tuple)): + adapter = MultiAdapter(adapter) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + adapter=adapter, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.register_to_config(requires_safety_checker=requires_safety_checker) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents + def decode_latents(self, latents): + deprecation_message = "The decode_latents method is deprecated and will be removed in 1.0.0. Please use VaeImageProcessor.postprocess(...) instead" + deprecate("decode_latents", "1.0.0", deprecation_message, standard_warn=False) + + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + image, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if isinstance(self.adapter, MultiAdapter): + if not isinstance(image, list): + raise ValueError( + "MultiAdapter is enabled, but `image` is not a list. Please pass a list of images to `image`." + ) + + if len(image) != len(self.adapter.adapters): + raise ValueError( + f"MultiAdapter requires passing the same number of images as adapters. Given {len(image)} images and {len(self.adapter.adapters)} adapters." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def _default_height_width(self, height, width, image): + # NOTE: It is possible that a list of images have different + # dimensions for each image, so just checking the first image + # is not _exactly_ correct, but it is simple. + while isinstance(image, list): + image = image[0] + + if height is None: + if isinstance(image, PIL.Image.Image): + height = image.height + elif isinstance(image, torch.Tensor): + height = image.shape[-2] + + # round down to nearest multiple of `self.adapter.downscale_factor` + height = (height // self.adapter.downscale_factor) * self.adapter.downscale_factor + + if width is None: + if isinstance(image, PIL.Image.Image): + width = image.width + elif isinstance(image, torch.Tensor): + width = image.shape[-1] + + # round down to nearest multiple of `self.adapter.downscale_factor` + width = (width // self.adapter.downscale_factor) * self.adapter.downscale_factor + + return height, width + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + image: Union[torch.Tensor, PIL.Image.Image, List[PIL.Image.Image]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + adapter_conditioning_scale: Union[float, List[float]] = 1.0, + clip_skip: Optional[int] = None, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + image (`torch.Tensor`, `PIL.Image.Image`, `List[torch.Tensor]` or `List[PIL.Image.Image]` or `List[List[PIL.Image.Image]]`): + The Adapter input condition. Adapter uses this input condition to generate guidance to Unet. If the + type is specified as `torch.Tensor`, it is passed to Adapter as is. PIL.Image.Image` can also be + accepted as an image. The control image is automatically resized to fit the output image. + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds`. instead. If not defined, one has to pass `negative_prompt_embeds`. instead. + Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionAdapterPipelineOutput`] instead + of a plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttnProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + adapter_conditioning_scale (`float` or `List[float]`, *optional*, defaults to 1.0): + The outputs of the adapter are multiplied by `adapter_conditioning_scale` before they are added to the + residual in the original unet. If multiple adapters are specified in init, you can set the + corresponding scale as a list. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionAdapterPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionAdapterPipelineOutput`] if `return_dict` is True, otherwise a + `tuple. When returning a tuple, the first element is a list with the generated images, and the second + element is a list of `bool`s denoting whether the corresponding generated image likely represents + "not-safe-for-work" (nsfw) content, according to the `safety_checker`. + """ + # 0. Default height and width to unet + height, width = self._default_height_width(height, width, image) + device = self._execution_device + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, height, width, callback_steps, image, negative_prompt, prompt_embeds, negative_prompt_embeds + ) + + self._guidance_scale = guidance_scale + + if isinstance(self.adapter, MultiAdapter): + adapter_input = [] + + for one_image in image: + one_image = _preprocess_adapter_image(one_image, height, width) + one_image = one_image.to(device=device, dtype=self.adapter.dtype) + adapter_input.append(one_image) + else: + adapter_input = _preprocess_adapter_image(image, height, width) + adapter_input = adapter_input.to(device=device, dtype=self.adapter.dtype) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + self.do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 6.5 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + # 7. Denoising loop + if isinstance(self.adapter, MultiAdapter): + adapter_state = self.adapter(adapter_input, adapter_conditioning_scale) + for k, v in enumerate(adapter_state): + adapter_state[k] = v + else: + adapter_state = self.adapter(adapter_input) + for k, v in enumerate(adapter_state): + adapter_state[k] = v * adapter_conditioning_scale + if num_images_per_prompt > 1: + for k, v in enumerate(adapter_state): + adapter_state[k] = v.repeat(num_images_per_prompt, 1, 1, 1) + if self.do_classifier_free_guidance: + for k, v in enumerate(adapter_state): + adapter_state[k] = torch.cat([v] * 2, dim=0) + + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=cross_attention_kwargs, + down_intrablock_additional_residuals=[state.clone() for state in adapter_state], + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if output_type == "latent": + image = latents + has_nsfw_concept = None + elif output_type == "pil": + # 8. Post-processing + image = self.decode_latents(latents) + + # 9. Run safety checker + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + + # 10. Convert to PIL + image = self.numpy_to_pil(image) + else: + # 8. Post-processing + image = self.decode_latents(latents) + + # 9. Run safety checker + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image, has_nsfw_concept) + + return StableDiffusionAdapterPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/pipeline_stable_diffusion_xl_adapter.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/pipeline_stable_diffusion_xl_adapter.py new file mode 100644 index 0000000000000000000000000000000000000000..2802d690f3cca33b344d566427945d6305995e74 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/t2i_adapter/pipeline_stable_diffusion_xl_adapter.py @@ -0,0 +1,1311 @@ +# Copyright 2025 TencentARC and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import numpy as np +import PIL.Image +import torch +from transformers import ( + CLIPImageProcessor, + CLIPTextModel, + CLIPTextModelWithProjection, + CLIPTokenizer, + CLIPVisionModelWithProjection, +) + +from ...image_processor import PipelineImageInput, VaeImageProcessor +from ...loaders import ( + FromSingleFileMixin, + IPAdapterMixin, + StableDiffusionXLLoraLoaderMixin, + TextualInversionLoaderMixin, +) +from ...models import AutoencoderKL, ImageProjection, MultiAdapter, T2IAdapter, UNet2DConditionModel +from ...models.attention_processor import ( + AttnProcessor2_0, + XFormersAttnProcessor, +) +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + PIL_INTERPOLATION, + USE_PEFT_BACKEND, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion_xl.pipeline_output import StableDiffusionXLPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import T2IAdapter, StableDiffusionXLAdapterPipeline, DDPMScheduler + >>> from diffusers.utils import load_image + + >>> sketch_image = load_image("https://huggingface.co/Adapter/t2iadapter/resolve/main/sketch.png").convert("L") + + >>> model_id = "stabilityai/stable-diffusion-xl-base-1.0" + + >>> adapter = T2IAdapter.from_pretrained( + ... "Adapter/t2iadapter", + ... subfolder="sketch_sdxl_1.0", + ... torch_dtype=torch.float16, + ... adapter_type="full_adapter_xl", + ... ) + >>> scheduler = DDPMScheduler.from_pretrained(model_id, subfolder="scheduler") + + >>> pipe = StableDiffusionXLAdapterPipeline.from_pretrained( + ... model_id, adapter=adapter, torch_dtype=torch.float16, variant="fp16", scheduler=scheduler + ... ).to("cuda") + + >>> generator = torch.manual_seed(42) + >>> sketch_image_out = pipe( + ... prompt="a photo of a dog in real world, high quality", + ... negative_prompt="extra digit, fewer digits, cropped, worst quality, low quality", + ... image=sketch_image, + ... generator=generator, + ... guidance_scale=7.5, + ... ).images[0] + ``` +""" + + +def _preprocess_adapter_image(image, height, width): + if isinstance(image, torch.Tensor): + return image + elif isinstance(image, PIL.Image.Image): + image = [image] + + if isinstance(image[0], PIL.Image.Image): + image = [np.array(i.resize((width, height), resample=PIL_INTERPOLATION["lanczos"])) for i in image] + image = [ + i[None, ..., None] if i.ndim == 2 else i[None, ...] for i in image + ] # expand [h, w] or [h, w, c] to [b, h, w, c] + image = np.concatenate(image, axis=0) + image = np.array(image).astype(np.float32) / 255.0 + image = image.transpose(0, 3, 1, 2) + image = torch.from_numpy(image) + elif isinstance(image[0], torch.Tensor): + if image[0].ndim == 3: + image = torch.stack(image, dim=0) + elif image[0].ndim == 4: + image = torch.cat(image, dim=0) + else: + raise ValueError( + f"Invalid image tensor! Expecting image tensor with 3 or 4 dimension, but receive: {image[0].ndim}" + ) + return image + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + r""" + Rescales `noise_cfg` tensor based on `guidance_rescale` to improve image quality and fix overexposure. Based on + Section 3.4 from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). + + Args: + noise_cfg (`torch.Tensor`): + The predicted noise tensor for the guided diffusion process. + noise_pred_text (`torch.Tensor`): + The predicted noise tensor for the text-guided diffusion process. + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescale factor applied to the noise predictions. + + Returns: + noise_cfg (`torch.Tensor`): The rescaled noise prediction tensor. + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class StableDiffusionXLAdapterPipeline( + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionXLLoraLoaderMixin, + IPAdapterMixin, + FromSingleFileMixin, +): + r""" + Pipeline for text-to-image generation using Stable Diffusion augmented with T2I-Adapter + https://huggingface.co/papers/2302.08453 + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.FromSingleFileMixin.from_single_file`] for loading `.ckpt` files + - [`~loaders.StableDiffusionXLLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionXLLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + - [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters + + Args: + adapter ([`T2IAdapter`] or [`MultiAdapter`] or `List[T2IAdapter]`): + Provides additional conditioning to the unet during the denoising process. If you set multiple Adapter as a + list, the outputs from each Adapter are added together to create one combined additional conditioning. + adapter_weights (`List[float]`, *optional*, defaults to None): + List of floats representing the weight which will be multiply to each adapter's output before adding them + together. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please, refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + details. + feature_extractor ([`CLIPImageProcessor`]): + Model that extracts features from generated images to be used as inputs for the `safety_checker`. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->image_encoder->unet->vae" + _optional_components = [ + "tokenizer", + "tokenizer_2", + "text_encoder", + "text_encoder_2", + "feature_extractor", + "image_encoder", + ] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + tokenizer_2: CLIPTokenizer, + unet: UNet2DConditionModel, + adapter: Union[T2IAdapter, MultiAdapter, List[T2IAdapter]], + scheduler: KarrasDiffusionSchedulers, + force_zeros_for_empty_prompt: bool = True, + feature_extractor: CLIPImageProcessor = None, + image_encoder: CLIPVisionModelWithProjection = None, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + unet=unet, + adapter=adapter, + scheduler=scheduler, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + ) + self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + self.default_sample_size = ( + self.unet.config.sample_size + if hasattr(self, "unet") and self.unet is not None and hasattr(self.unet.config, "sample_size") + else 128 + ) + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.encode_prompt + def encode_prompt( + self, + prompt: str, + prompt_2: Optional[str] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[str] = None, + negative_prompt_2: Optional[str] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionXLLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale) + else: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # Define tokenizers and text encoders + tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] + text_encoders = ( + [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] + ) + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + # textual inversion: process multi-vector tokens if necessary + prompt_embeds_list = [] + prompts = [prompt, prompt_2] + for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, tokenizer) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if pooled_prompt_embeds is None and prompt_embeds[0].ndim == 2: + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + # "2" because SDXL always indexes from the penultimate layer. + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds_list.append(prompt_embeds) + + prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) + + # get unconditional embeddings for classifier free guidance + zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt + if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: + negative_prompt_embeds = torch.zeros_like(prompt_embeds) + negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) + elif do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + + uncond_tokens: List[str] + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = [negative_prompt, negative_prompt_2] + + negative_prompt_embeds_list = [] + for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = tokenizer( + negative_prompt, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + negative_prompt_embeds = text_encoder( + uncond_input.input_ids.to(device), + output_hidden_states=True, + ) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if negative_pooled_prompt_embeds is None and negative_prompt_embeds[0].ndim == 2: + negative_pooled_prompt_embeds = negative_prompt_embeds[0] + negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] + + negative_prompt_embeds_list.append(negative_prompt_embeds) + + negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) + + if self.text_encoder_2 is not None: + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + prompt_embeds = prompt_embeds.to(dtype=self.unet.dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + if self.text_encoder_2 is not None: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.unet.dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + if do_classifier_free_guidance: + negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image + def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None): + dtype = next(self.image_encoder.parameters()).dtype + + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + if output_hidden_states: + image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2] + image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_enc_hidden_states = self.image_encoder( + torch.zeros_like(image), output_hidden_states=True + ).hidden_states[-2] + uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave( + num_images_per_prompt, dim=0 + ) + return image_enc_hidden_states, uncond_image_enc_hidden_states + else: + image_embeds = self.image_encoder(image).image_embeds + image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0) + uncond_image_embeds = torch.zeros_like(image_embeds) + + return image_embeds, uncond_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds + def prepare_ip_adapter_image_embeds( + self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance + ): + image_embeds = [] + if do_classifier_free_guidance: + negative_image_embeds = [] + if ip_adapter_image_embeds is None: + if not isinstance(ip_adapter_image, list): + ip_adapter_image = [ip_adapter_image] + + if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers): + raise ValueError( + f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters." + ) + + for single_ip_adapter_image, image_proj_layer in zip( + ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers + ): + output_hidden_state = not isinstance(image_proj_layer, ImageProjection) + single_image_embeds, single_negative_image_embeds = self.encode_image( + single_ip_adapter_image, device, 1, output_hidden_state + ) + + image_embeds.append(single_image_embeds[None, :]) + if do_classifier_free_guidance: + negative_image_embeds.append(single_negative_image_embeds[None, :]) + else: + for single_image_embeds in ip_adapter_image_embeds: + if do_classifier_free_guidance: + single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2) + negative_image_embeds.append(single_negative_image_embeds) + image_embeds.append(single_image_embeds) + + ip_adapter_image_embeds = [] + for i, single_image_embeds in enumerate(image_embeds): + single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0) + if do_classifier_free_guidance: + single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0) + single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0) + + single_image_embeds = single_image_embeds.to(device=device) + ip_adapter_image_embeds.append(single_image_embeds) + + return ip_adapter_image_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.check_inputs + def check_inputs( + self, + prompt, + prompt_2, + height, + width, + callback_steps, + negative_prompt=None, + negative_prompt_2=None, + prompt_embeds=None, + negative_prompt_embeds=None, + pooled_prompt_embeds=None, + negative_pooled_prompt_embeds=None, + ip_adapter_image=None, + ip_adapter_image_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." + ) + + if ip_adapter_image is not None and ip_adapter_image_embeds is not None: + raise ValueError( + "Provide either `ip_adapter_image` or `ip_adapter_image_embeds`. Cannot leave both `ip_adapter_image` and `ip_adapter_image_embeds` defined." + ) + + if ip_adapter_image_embeds is not None: + if not isinstance(ip_adapter_image_embeds, list): + raise ValueError( + f"`ip_adapter_image_embeds` has to be of type `list` but is {type(ip_adapter_image_embeds)}" + ) + elif ip_adapter_image_embeds[0].ndim not in [3, 4]: + raise ValueError( + f"`ip_adapter_image_embeds` has to be a list of 3D or 4D tensors but is {ip_adapter_image_embeds[0].ndim}D" + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline._get_add_time_ids + def _get_add_time_ids( + self, original_size, crops_coords_top_left, target_size, dtype, text_encoder_projection_dim=None + ): + add_time_ids = list(original_size + crops_coords_top_left + target_size) + + passed_add_embed_dim = ( + self.unet.config.addition_time_embed_dim * len(add_time_ids) + text_encoder_projection_dim + ) + expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features + + if expected_add_embed_dim != passed_add_embed_dim: + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." + ) + + add_time_ids = torch.tensor([add_time_ids], dtype=dtype) + return add_time_ids + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_upscale.StableDiffusionUpscalePipeline.upcast_vae + def upcast_vae(self): + dtype = self.vae.dtype + self.vae.to(dtype=torch.float32) + use_torch_2_0_or_xformers = isinstance( + self.vae.decoder.mid_block.attentions[0].processor, + ( + AttnProcessor2_0, + XFormersAttnProcessor, + ), + ) + # if xformers or torch_2_0 is used attention block does not need + # to be in float32 which can save lots of memory + if use_torch_2_0_or_xformers: + self.vae.post_quant_conv.to(dtype) + self.vae.decoder.conv_in.to(dtype) + self.vae.decoder.mid_block.to(dtype) + + # Copied from diffusers.pipelines.t2i_adapter.pipeline_stable_diffusion_adapter.StableDiffusionAdapterPipeline._default_height_width + def _default_height_width(self, height, width, image): + # NOTE: It is possible that a list of images have different + # dimensions for each image, so just checking the first image + # is not _exactly_ correct, but it is simple. + while isinstance(image, list): + image = image[0] + + if height is None: + if isinstance(image, PIL.Image.Image): + height = image.height + elif isinstance(image, torch.Tensor): + height = image.shape[-2] + + # round down to nearest multiple of `self.adapter.downscale_factor` + height = (height // self.adapter.downscale_factor) * self.adapter.downscale_factor + + if width is None: + if isinstance(image, PIL.Image.Image): + width = image.width + elif isinstance(image, torch.Tensor): + width = image.shape[-1] + + # round down to nearest multiple of `self.adapter.downscale_factor` + width = (width // self.adapter.downscale_factor) * self.adapter.downscale_factor + + return height, width + + # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding + def get_guidance_scale_embedding( + self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32 + ) -> torch.Tensor: + """ + See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298 + + Args: + w (`torch.Tensor`): + Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings. + embedding_dim (`int`, *optional*, defaults to 512): + Dimension of the embeddings to generate. + dtype (`torch.dtype`, *optional*, defaults to `torch.float32`): + Data type of the generated embeddings. + + Returns: + `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`. + """ + assert len(w.shape) == 1 + w = w * 1000.0 + + half_dim = embedding_dim // 2 + emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1) + emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb) + emb = w.to(dtype)[:, None] * emb[None, :] + emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1) + if embedding_dim % 2 == 1: # zero pad + emb = torch.nn.functional.pad(emb, (0, 1)) + assert emb.shape == (w.shape[0], embedding_dim) + return emb + + @property + def guidance_scale(self): + return self._guidance_scale + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + prompt_2: Optional[Union[str, List[str]]] = None, + image: PipelineImageInput = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + timesteps: List[int] = None, + sigmas: List[float] = None, + denoising_end: Optional[float] = None, + guidance_scale: float = 5.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + ip_adapter_image: Optional[PipelineImageInput] = None, + ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + original_size: Optional[Tuple[int, int]] = None, + crops_coords_top_left: Tuple[int, int] = (0, 0), + target_size: Optional[Tuple[int, int]] = None, + negative_original_size: Optional[Tuple[int, int]] = None, + negative_crops_coords_top_left: Tuple[int, int] = (0, 0), + negative_target_size: Optional[Tuple[int, int]] = None, + adapter_conditioning_scale: Union[float, List[float]] = 1.0, + adapter_conditioning_factor: float = 1.0, + clip_skip: Optional[int] = None, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + image (`torch.Tensor`, `PIL.Image.Image`, `List[torch.Tensor]` or `List[PIL.Image.Image]` or `List[List[PIL.Image.Image]]`): + The Adapter input condition. Adapter uses this input condition to generate guidance to Unet. If the + type is specified as `torch.Tensor`, it is passed to Adapter as is. PIL.Image.Image` can also be + accepted as an image. The control image is automatically resized to fit the output image. + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. Anything below 512 pixels won't work well for + [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) + and checkpoints that are not specifically fine-tuned on low resolutions. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. Anything below 512 pixels won't work well for + [stabilityai/stable-diffusion-xl-base-1.0](https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0) + and checkpoints that are not specifically fine-tuned on low resolutions. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process with schedulers which support a `timesteps` argument + in their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is + passed will be used. Must be in descending order. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + denoising_end (`float`, *optional*): + When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be + completed before it is intentionally prematurely terminated. As a result, the returned sample will + still retain a substantial amount of noise as determined by the discrete timesteps selected by the + scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a + "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image + Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) + guidance_scale (`float`, *optional*, defaults to 5.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + ip_adapter_image: (`PipelineImageInput`, *optional*): Optional image input to work with IP Adapters. + ip_adapter_image_embeds (`List[torch.Tensor]`, *optional*): + Pre-generated image embeddings for IP-Adapter. It should be a list of length same as number of + IP-adapters. Each element should be a tensor of shape `(batch_size, num_images, emb_dim)`. It should + contain the negative image embedding if `do_classifier_free_guidance` is set to `True`. If not + provided, embeddings are computed from the `ip_adapter_image` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion_xl.StableDiffusionAdapterPipelineOutput`] + instead of a plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + guidance_rescale (`float`, *optional*, defaults to 0.0): + Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891) `guidance_scale` is defined as `φ` in equation 16. of + [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when + using zero terminal SNR. + original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. + `original_size` defaults to `(height, width)` if not specified. Part of SDXL's micro-conditioning as + explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position + `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting + `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + For most cases, `target_size` should be set to the desired height and width of the generated image. If + not specified it will default to `(height, width)`. Part of SDXL's micro-conditioning as explained in + section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + negative_original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a specific image resolution. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + To negatively condition the generation process based on a specific crop coordinates. Part of SDXL's + micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + negative_target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + To negatively condition the generation process based on a target image resolution. It should be as same + as the `target_size` for most cases. Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). For more + information, refer to this issue thread: https://github.com/huggingface/diffusers/issues/4208. + adapter_conditioning_scale (`float` or `List[float]`, *optional*, defaults to 1.0): + The outputs of the adapter are multiplied by `adapter_conditioning_scale` before they are added to the + residual in the original unet. If multiple adapters are specified in init, you can set the + corresponding scale as a list. + adapter_conditioning_factor (`float`, *optional*, defaults to 1.0): + The fraction of timesteps for which adapter should be applied. If `adapter_conditioning_factor` is + `0.0`, adapter is not applied at all. If `adapter_conditioning_factor` is `1.0`, adapter is applied for + all timesteps. If `adapter_conditioning_factor` is `0.5`, adapter is applied for half of the timesteps. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + + Examples: + + Returns: + [`~pipelines.stable_diffusion.StableDiffusionAdapterPipelineOutput`] or `tuple`: + [`~pipelines.stable_diffusion.StableDiffusionAdapterPipelineOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + # 0. Default height and width to unet + + height, width = self._default_height_width(height, width, image) + device = self._execution_device + + if isinstance(self.adapter, MultiAdapter): + adapter_input = [] + + for one_image in image: + one_image = _preprocess_adapter_image(one_image, height, width) + one_image = one_image.to(device=device, dtype=self.adapter.dtype) + adapter_input.append(one_image) + else: + adapter_input = _preprocess_adapter_image(image, height, width) + adapter_input = adapter_input.to(device=device, dtype=self.adapter.dtype) + original_size = original_size or (height, width) + target_size = target_size or (height, width) + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + prompt_2, + height, + width, + callback_steps, + negative_prompt, + negative_prompt_2, + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ip_adapter_image, + ip_adapter_image_embeds, + ) + + self._guidance_scale = guidance_scale + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + + # 3.1 Encode input prompt + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + clip_skip=clip_skip, + ) + + # 3.2 Encode ip_adapter_image + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + image_embeds = self.prepare_ip_adapter_image_embeds( + ip_adapter_image, + ip_adapter_image_embeds, + device, + batch_size * num_images_per_prompt, + self.do_classifier_free_guidance, + ) + + # 4. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, num_inference_steps, device, timesteps, sigmas + ) + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6.1 Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 6.2 Optionally get Guidance Scale Embedding + timestep_cond = None + if self.unet.config.time_cond_proj_dim is not None: + guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt) + timestep_cond = self.get_guidance_scale_embedding( + guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim + ).to(device=device, dtype=latents.dtype) + + # 7. Prepare added time ids & embeddings & adapter features + if isinstance(self.adapter, MultiAdapter): + adapter_state = self.adapter(adapter_input, adapter_conditioning_scale) + for k, v in enumerate(adapter_state): + adapter_state[k] = v + else: + adapter_state = self.adapter(adapter_input) + for k, v in enumerate(adapter_state): + adapter_state[k] = v * adapter_conditioning_scale + if num_images_per_prompt > 1: + for k, v in enumerate(adapter_state): + adapter_state[k] = v.repeat(num_images_per_prompt, 1, 1, 1) + if self.do_classifier_free_guidance: + for k, v in enumerate(adapter_state): + adapter_state[k] = torch.cat([v] * 2, dim=0) + + add_text_embeds = pooled_prompt_embeds + if self.text_encoder_2 is None: + text_encoder_projection_dim = int(pooled_prompt_embeds.shape[-1]) + else: + text_encoder_projection_dim = self.text_encoder_2.config.projection_dim + + add_time_ids = self._get_add_time_ids( + original_size, + crops_coords_top_left, + target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + if negative_original_size is not None and negative_target_size is not None: + negative_add_time_ids = self._get_add_time_ids( + negative_original_size, + negative_crops_coords_top_left, + negative_target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + else: + negative_add_time_ids = add_time_ids + + if self.do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) + add_time_ids = torch.cat([negative_add_time_ids, add_time_ids], dim=0) + + prompt_embeds = prompt_embeds.to(device) + add_text_embeds = add_text_embeds.to(device) + add_time_ids = add_time_ids.to(device).repeat(batch_size * num_images_per_prompt, 1) + + # 8. Denoising loop + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + # Apply denoising_end + if denoising_end is not None and isinstance(denoising_end, float) and denoising_end > 0 and denoising_end < 1: + discrete_timestep_cutoff = int( + round( + self.scheduler.config.num_train_timesteps + - (denoising_end * self.scheduler.config.num_train_timesteps) + ) + ) + num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) + timesteps = timesteps[:num_inference_steps] + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents + + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} + + if ip_adapter_image is not None or ip_adapter_image_embeds is not None: + added_cond_kwargs["image_embeds"] = image_embeds + + # predict the noise residual + if i < int(num_inference_steps * adapter_conditioning_factor): + down_intrablock_additional_residuals = [state.clone() for state in adapter_state] + else: + down_intrablock_additional_residuals = None + + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + timestep_cond=timestep_cond, + cross_attention_kwargs=cross_attention_kwargs, + down_intrablock_additional_residuals=down_intrablock_additional_residuals, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if self.do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + if self.do_classifier_free_guidance and guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0] + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if not output_type == "latent": + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + + if needs_upcasting: + self.upcast_vae() + latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) + + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + else: + image = latents + return StableDiffusionXLPipelineOutput(images=image) + + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return StableDiffusionXLPipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..8d8fdb92769bb3dcb2dd7696115b16f197062262 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/__init__.py @@ -0,0 +1,54 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_output"] = ["TextToVideoSDPipelineOutput"] + _import_structure["pipeline_text_to_video_synth"] = ["TextToVideoSDPipeline"] + _import_structure["pipeline_text_to_video_synth_img2img"] = ["VideoToVideoSDPipeline"] + _import_structure["pipeline_text_to_video_zero"] = ["TextToVideoZeroPipeline"] + _import_structure["pipeline_text_to_video_zero_sdxl"] = ["TextToVideoZeroSDXLPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * # noqa F403 + else: + from .pipeline_output import TextToVideoSDPipelineOutput + from .pipeline_text_to_video_synth import TextToVideoSDPipeline + from .pipeline_text_to_video_synth_img2img import VideoToVideoSDPipeline + from .pipeline_text_to_video_zero import TextToVideoZeroPipeline + from .pipeline_text_to_video_zero_sdxl import TextToVideoZeroSDXLPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..040bf0efba8465d830af5e6686bc3f544585f63f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_output.py @@ -0,0 +1,26 @@ +from dataclasses import dataclass +from typing import List, Union + +import numpy as np +import PIL +import torch + +from ...utils import ( + BaseOutput, +) + + +@dataclass +class TextToVideoSDPipelineOutput(BaseOutput): + """ + Output class for text-to-video pipelines. + + Args: + frames (`torch.Tensor`, `np.ndarray`, or List[List[PIL.Image.Image]]): + List of video outputs - It can be a nested list of length `batch_size,` with each sub-list containing + denoised + PIL image sequences of length `num_frames.` It can also be a NumPy array or Torch tensor of shape + `(batch_size, num_frames, channels, height, width)` + """ + + frames: Union[torch.Tensor, np.ndarray, List[List[PIL.Image.Image]]] diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_synth.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_synth.py new file mode 100644 index 0000000000000000000000000000000000000000..3ce7b4d1990fb5fcf9a96f6beb2934d653e52e30 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_synth.py @@ -0,0 +1,660 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import torch +from transformers import CLIPTextModel, CLIPTokenizer + +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet3DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from . import TextToVideoSDPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import TextToVideoSDPipeline + >>> from diffusers.utils import export_to_video + + >>> pipe = TextToVideoSDPipeline.from_pretrained( + ... "damo-vilab/text-to-video-ms-1.7b", torch_dtype=torch.float16, variant="fp16" + ... ) + >>> pipe.enable_model_cpu_offload() + + >>> prompt = "Spiderman is surfing" + >>> video_frames = pipe(prompt).frames[0] + >>> video_path = export_to_video(video_frames) + >>> video_path + ``` +""" + + +class TextToVideoSDPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, +): + _last_supported_version = "0.33.1" + r""" + Pipeline for text-to-video generation. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer (`CLIPTokenizer`): + A [`~transformers.CLIPTokenizer`] to tokenize text. + unet ([`UNet3DConditionModel`]): + A [`UNet3DConditionModel`] to denoise the encoded video latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet3DConditionModel, + scheduler: KarrasDiffusionSchedulers, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(do_resize=False, vae_scale_factor=self.vae_scale_factor) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + def decode_latents(self, latents): + latents = 1 / self.vae.config.scaling_factor * latents + + batch_size, channels, num_frames, height, width = latents.shape + latents = latents.permute(0, 2, 1, 3, 4).reshape(batch_size * num_frames, channels, height, width) + + image = self.vae.decode(latents).sample + video = image[None, :].reshape((batch_size, num_frames, -1) + image.shape[2:]).permute(0, 2, 1, 3, 4) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + video = video.float() + return video + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion_k_diffusion.pipeline_stable_diffusion_k_diffusion.StableDiffusionKDiffusionPipeline.check_inputs + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + def prepare_latents( + self, batch_size, num_channels_latents, num_frames, height, width, dtype, device, generator, latents=None + ): + shape = ( + batch_size, + num_channels_latents, + num_frames, + height // self.vae_scale_factor, + width // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_frames: int = 16, + num_inference_steps: int = 50, + guidance_scale: float = 9.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: Optional[int] = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated video. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated video. + num_frames (`int`, *optional*, defaults to 16): + The number of video frames that are generated. Defaults to 16 frames which at 8 frames per seconds + amounts to 2 seconds of video. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality videos at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for video + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. Latents should be of shape + `(batch_size, num_channel, num_frames, height, width)`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated video. Choose between `torch.Tensor` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] instead + of a plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Examples: + + Returns: + [`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] is + returned, otherwise a `tuple` is returned where the first element is a list with the generated frames. + """ + # 0. Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + num_images_per_prompt = 1 + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, height, width, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds + ) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + num_frames, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # reshape latents + bsz, channel, frames, width, height = latents.shape + latents = latents.permute(0, 2, 1, 3, 4).reshape(bsz * frames, channel, width, height) + noise_pred = noise_pred.permute(0, 2, 1, 3, 4).reshape(bsz * frames, channel, width, height) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # reshape latents back + latents = latents[None, :].reshape(bsz, frames, channel, width, height).permute(0, 2, 1, 3, 4) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # 8. Post processing + if output_type == "latent": + video = latents + else: + video_tensor = self.decode_latents(latents) + video = self.video_processor.postprocess_video(video=video_tensor, output_type=output_type) + + # 9. Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return TextToVideoSDPipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_synth_img2img.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_synth_img2img.py new file mode 100644 index 0000000000000000000000000000000000000000..9d0b7e3dbc32ac782fcaa683dde74c74d3f87b19 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_synth_img2img.py @@ -0,0 +1,716 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import torch +from transformers import CLIPTextModel, CLIPTokenizer + +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet3DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from . import TextToVideoSDPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import DiffusionPipeline, DPMSolverMultistepScheduler + >>> from diffusers.utils import export_to_video + + >>> pipe = DiffusionPipeline.from_pretrained("cerspense/zeroscope_v2_576w", torch_dtype=torch.float16) + >>> pipe.scheduler = DPMSolverMultistepScheduler.from_config(pipe.scheduler.config) + >>> pipe.to("cuda") + + >>> prompt = "spiderman running in the desert" + >>> video_frames = pipe(prompt, num_inference_steps=40, height=320, width=576, num_frames=24).frames[0] + >>> # safe low-res video + >>> video_path = export_to_video(video_frames, output_video_path="./video_576_spiderman.mp4") + + >>> # let's offload the text-to-image model + >>> pipe.to("cpu") + + >>> # and load the image-to-image model + >>> pipe = DiffusionPipeline.from_pretrained( + ... "cerspense/zeroscope_v2_XL", torch_dtype=torch.float16, revision="refs/pr/15" + ... ) + >>> pipe.scheduler = DPMSolverMultistepScheduler.from_config(pipe.scheduler.config) + >>> pipe.enable_model_cpu_offload() + + >>> # The VAE consumes A LOT of memory, let's make sure we run it in sliced mode + >>> pipe.vae.enable_slicing() + + >>> # now let's upscale it + >>> video = [Image.fromarray(frame).resize((1024, 576)) for frame in video_frames] + + >>> # and denoise it + >>> video_frames = pipe(prompt, video=video, strength=0.6).frames[0] + >>> video_path = export_to_video(video_frames, output_video_path="./video_1024_spiderman.mp4") + >>> video_path + ``` +""" + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class VideoToVideoSDPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, +): + _last_supported_version = "0.33.1" + r""" + Pipeline for text-guided video-to-video generation. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer (`CLIPTokenizer`): + A [`~transformers.CLIPTokenizer`] to tokenize text. + unet ([`UNet3DConditionModel`]): + A [`UNet3DConditionModel`] to denoise the encoded video latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + """ + + model_cpu_offload_seq = "text_encoder->unet->vae" + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet3DConditionModel, + scheduler: KarrasDiffusionSchedulers, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(do_resize=False, vae_scale_factor=self.vae_scale_factor) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_synth.TextToVideoSDPipeline.decode_latents + def decode_latents(self, latents): + latents = 1 / self.vae.config.scaling_factor * latents + + batch_size, channels, num_frames, height, width = latents.shape + latents = latents.permute(0, 2, 1, 3, 4).reshape(batch_size * num_frames, channels, height, width) + + image = self.vae.decode(latents).sample + video = image[None, :].reshape((batch_size, num_frames, -1) + image.shape[2:]).permute(0, 2, 1, 3, 4) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + video = video.float() + return video + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def check_inputs( + self, + prompt, + strength, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.StableDiffusionImg2ImgPipeline.get_timesteps + def get_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + + t_start = max(num_inference_steps - init_timestep, 0) + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + def prepare_latents(self, video, timestep, batch_size, dtype, device, generator=None): + video = video.to(device=device, dtype=dtype) + + # change from (b, c, f, h, w) -> (b * f, c, w, h) + bsz, channel, frames, width, height = video.shape + video = video.permute(0, 2, 1, 3, 4).reshape(bsz * frames, channel, width, height) + + if video.shape[1] == 4: + init_latents = video + else: + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + elif isinstance(generator, list): + init_latents = [ + retrieve_latents(self.vae.encode(video[i : i + 1]), generator=generator[i]) + for i in range(batch_size) + ] + init_latents = torch.cat(init_latents, dim=0) + else: + init_latents = retrieve_latents(self.vae.encode(video), generator=generator) + + init_latents = self.vae.config.scaling_factor * init_latents + + if batch_size > init_latents.shape[0] and batch_size % init_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `video` of batch size {init_latents.shape[0]} to {batch_size} text prompts." + ) + else: + init_latents = torch.cat([init_latents], dim=0) + + shape = init_latents.shape + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + + # get latents + init_latents = self.scheduler.add_noise(init_latents, noise, timestep) + latents = init_latents + + latents = latents[None, :].reshape((bsz, frames, latents.shape[1]) + latents.shape[2:]).permute(0, 2, 1, 3, 4) + + return latents + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + video: Union[List[np.ndarray], torch.Tensor] = None, + strength: float = 0.6, + num_inference_steps: int = 50, + guidance_scale: float = 15.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + clip_skip: Optional[int] = None, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + video (`List[np.ndarray]` or `torch.Tensor`): + `video` frames or tensor representing a video batch to be used as the starting point for the process. + Can also accept video latents as `image`, if passing latents directly, it will not be encoded again. + strength (`float`, *optional*, defaults to 0.8): + Indicates extent to transform the reference `video`. Must be between 0 and 1. `video` is used as a + starting point, adding more noise to it the larger the `strength`. The number of denoising steps + depends on the amount of noise initially added. When `strength` is 1, added noise is maximum and the + denoising process runs for the full number of iterations specified in `num_inference_steps`. A value of + 1 essentially ignores `video`. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality videos at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in video generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for video + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. Latents should be of shape + `(batch_size, num_channel, num_frames, height, width)`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated video. Choose between `torch.Tensor` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] instead + of a plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + Examples: + + Returns: + [`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] is + returned, otherwise a `tuple` is returned where the first element is a list with the generated frames. + """ + # 0. Default height and width to unet + num_images_per_prompt = 1 + + # 1. Check inputs. Raise error if not correct + self.check_inputs(prompt, strength, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds) + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=text_encoder_lora_scale, + clip_skip=clip_skip, + ) + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + + # 4. Preprocess video + video = self.video_processor.preprocess_video(video) + + # 5. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, strength, device) + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + + # 6. Prepare latent variables + latents = self.prepare_latents(video, latent_timestep, batch_size, prompt_embeds.dtype, device, generator) + + # 7. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 8. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + return_dict=False, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # reshape latents + bsz, channel, frames, width, height = latents.shape + latents = latents.permute(0, 2, 1, 3, 4).reshape(bsz * frames, channel, width, height) + noise_pred = noise_pred.permute(0, 2, 1, 3, 4).reshape(bsz * frames, channel, width, height) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # reshape latents back + latents = latents[None, :].reshape(bsz, frames, channel, width, height).permute(0, 2, 1, 3, 4) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # manually for max memory savings + if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: + self.unet.to("cpu") + + # 9. Post processing + if output_type == "latent": + video = latents + else: + video_tensor = self.decode_latents(latents) + video = self.video_processor.postprocess_video(video=video_tensor, output_type=output_type) + + # 10. Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return TextToVideoSDPipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_zero.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_zero.py new file mode 100644 index 0000000000000000000000000000000000000000..96316f8e91e59d3a8f33f778f494654fee63dbc4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_zero.py @@ -0,0 +1,1005 @@ +import copy +import inspect +from dataclasses import dataclass +from typing import Callable, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +import torch.nn.functional as F +from torch.nn.functional import grid_sample +from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer + +from ...image_processor import VaeImageProcessor +from ...loaders import FromSingleFileMixin, StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + BaseOutput, + is_torch_xla_available, + logging, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import empty_device_cache, randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin +from ..stable_diffusion import StableDiffusionSafetyChecker + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +def rearrange_0(tensor, f): + F, C, H, W = tensor.size() + tensor = torch.permute(torch.reshape(tensor, (F // f, f, C, H, W)), (0, 2, 1, 3, 4)) + return tensor + + +def rearrange_1(tensor): + B, C, F, H, W = tensor.size() + return torch.reshape(torch.permute(tensor, (0, 2, 1, 3, 4)), (B * F, C, H, W)) + + +def rearrange_3(tensor, f): + F, D, C = tensor.size() + return torch.reshape(tensor, (F // f, f, D, C)) + + +def rearrange_4(tensor): + B, F, D, C = tensor.size() + return torch.reshape(tensor, (B * F, D, C)) + + +class CrossFrameAttnProcessor: + """ + Cross frame attention processor. Each frame attends the first frame. + + Args: + batch_size: The number that represents actual batch size, other than the frames. + For example, calling unet with a single prompt and num_images_per_prompt=1, batch_size should be equal to + 2, due to classifier-free guidance. + """ + + def __init__(self, batch_size=2): + self.batch_size = batch_size + + def __call__(self, attn, hidden_states, encoder_hidden_states=None, attention_mask=None): + batch_size, sequence_length, _ = hidden_states.shape + attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size) + query = attn.to_q(hidden_states) + + is_cross_attention = encoder_hidden_states is not None + if encoder_hidden_states is None: + encoder_hidden_states = hidden_states + elif attn.norm_cross: + encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states) + + key = attn.to_k(encoder_hidden_states) + value = attn.to_v(encoder_hidden_states) + + # Cross Frame Attention + if not is_cross_attention: + video_length = key.size()[0] // self.batch_size + first_frame_index = [0] * video_length + + # rearrange keys to have batch and frames in the 1st and 2nd dims respectively + key = rearrange_3(key, video_length) + key = key[:, first_frame_index] + # rearrange values to have batch and frames in the 1st and 2nd dims respectively + value = rearrange_3(value, video_length) + value = value[:, first_frame_index] + + # rearrange back to original shape + key = rearrange_4(key) + value = rearrange_4(value) + + query = attn.head_to_batch_dim(query) + key = attn.head_to_batch_dim(key) + value = attn.head_to_batch_dim(value) + + attention_probs = attn.get_attention_scores(query, key, attention_mask) + hidden_states = torch.bmm(attention_probs, value) + hidden_states = attn.batch_to_head_dim(hidden_states) + + # linear proj + hidden_states = attn.to_out[0](hidden_states) + # dropout + hidden_states = attn.to_out[1](hidden_states) + + return hidden_states + + +class CrossFrameAttnProcessor2_0: + """ + Cross frame attention processor with scaled_dot_product attention of Pytorch 2.0. + + Args: + batch_size: The number that represents actual batch size, other than the frames. + For example, calling unet with a single prompt and num_images_per_prompt=1, batch_size should be equal to + 2, due to classifier-free guidance. + """ + + def __init__(self, batch_size=2): + if not hasattr(F, "scaled_dot_product_attention"): + raise ImportError("AttnProcessor2_0 requires PyTorch 2.0, to use it, please upgrade PyTorch to 2.0.") + self.batch_size = batch_size + + def __call__(self, attn, hidden_states, encoder_hidden_states=None, attention_mask=None): + batch_size, sequence_length, _ = ( + hidden_states.shape if encoder_hidden_states is None else encoder_hidden_states.shape + ) + inner_dim = hidden_states.shape[-1] + + if attention_mask is not None: + attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size) + # scaled_dot_product_attention expects attention_mask shape to be + # (batch, heads, source_length, target_length) + attention_mask = attention_mask.view(batch_size, attn.heads, -1, attention_mask.shape[-1]) + + query = attn.to_q(hidden_states) + + is_cross_attention = encoder_hidden_states is not None + if encoder_hidden_states is None: + encoder_hidden_states = hidden_states + elif attn.norm_cross: + encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states) + + key = attn.to_k(encoder_hidden_states) + value = attn.to_v(encoder_hidden_states) + + # Cross Frame Attention + if not is_cross_attention: + video_length = max(1, key.size()[0] // self.batch_size) + first_frame_index = [0] * video_length + + # rearrange keys to have batch and frames in the 1st and 2nd dims respectively + key = rearrange_3(key, video_length) + key = key[:, first_frame_index] + # rearrange values to have batch and frames in the 1st and 2nd dims respectively + value = rearrange_3(value, video_length) + value = value[:, first_frame_index] + + # rearrange back to original shape + key = rearrange_4(key) + value = rearrange_4(value) + + head_dim = inner_dim // attn.heads + query = query.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2) + key = key.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2) + value = value.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2) + + # the output of sdp = (batch, num_heads, seq_len, head_dim) + # TODO: add support for attn.scale when we move to Torch 2.1 + hidden_states = F.scaled_dot_product_attention( + query, key, value, attn_mask=attention_mask, dropout_p=0.0, is_causal=False + ) + + hidden_states = hidden_states.transpose(1, 2).reshape(batch_size, -1, attn.heads * head_dim) + hidden_states = hidden_states.to(query.dtype) + + # linear proj + hidden_states = attn.to_out[0](hidden_states) + # dropout + hidden_states = attn.to_out[1](hidden_states) + return hidden_states + + +@dataclass +class TextToVideoPipelineOutput(BaseOutput): + r""" + Output class for zero-shot text-to-video pipeline. + + Args: + images (`[List[PIL.Image.Image]`, `np.ndarray`]): + List of denoised PIL images of length `batch_size` or NumPy array of shape `(batch_size, height, width, + num_channels)`. + nsfw_content_detected (`[List[bool]]`): + List indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content or + `None` if safety checking could not be performed. + """ + + images: Union[List[PIL.Image.Image], np.ndarray] + nsfw_content_detected: Optional[List[bool]] + + +def coords_grid(batch, ht, wd, device): + # Adapted from https://github.com/princeton-vl/RAFT/blob/master/core/utils/utils.py + coords = torch.meshgrid(torch.arange(ht, device=device), torch.arange(wd, device=device)) + coords = torch.stack(coords[::-1], dim=0).float() + return coords[None].repeat(batch, 1, 1, 1) + + +def warp_single_latent(latent, reference_flow): + """ + Warp latent of a single frame with given flow + + Args: + latent: latent code of a single frame + reference_flow: flow which to warp the latent with + + Returns: + warped: warped latent + """ + _, _, H, W = reference_flow.size() + _, _, h, w = latent.size() + coords0 = coords_grid(1, H, W, device=latent.device).to(latent.dtype) + + coords_t0 = coords0 + reference_flow + coords_t0[:, 0] /= W + coords_t0[:, 1] /= H + + coords_t0 = coords_t0 * 2.0 - 1.0 + coords_t0 = F.interpolate(coords_t0, size=(h, w), mode="bilinear") + coords_t0 = torch.permute(coords_t0, (0, 2, 3, 1)) + + warped = grid_sample(latent, coords_t0, mode="nearest", padding_mode="reflection") + return warped + + +def create_motion_field(motion_field_strength_x, motion_field_strength_y, frame_ids, device, dtype): + """ + Create translation motion field + + Args: + motion_field_strength_x: motion strength along x-axis + motion_field_strength_y: motion strength along y-axis + frame_ids: indexes of the frames the latents of which are being processed. + This is needed when we perform chunk-by-chunk inference + device: device + dtype: dtype + + Returns: + + """ + seq_length = len(frame_ids) + reference_flow = torch.zeros((seq_length, 2, 512, 512), device=device, dtype=dtype) + for fr_idx in range(seq_length): + reference_flow[fr_idx, 0, :, :] = motion_field_strength_x * (frame_ids[fr_idx]) + reference_flow[fr_idx, 1, :, :] = motion_field_strength_y * (frame_ids[fr_idx]) + return reference_flow + + +def create_motion_field_and_warp_latents(motion_field_strength_x, motion_field_strength_y, frame_ids, latents): + """ + Creates translation motion and warps the latents accordingly + + Args: + motion_field_strength_x: motion strength along x-axis + motion_field_strength_y: motion strength along y-axis + frame_ids: indexes of the frames the latents of which are being processed. + This is needed when we perform chunk-by-chunk inference + latents: latent codes of frames + + Returns: + warped_latents: warped latents + """ + motion_field = create_motion_field( + motion_field_strength_x=motion_field_strength_x, + motion_field_strength_y=motion_field_strength_y, + frame_ids=frame_ids, + device=latents.device, + dtype=latents.dtype, + ) + warped_latents = latents.clone().detach() + for i in range(len(warped_latents)): + warped_latents[i] = warp_single_latent(latents[i][None], motion_field[i][None]) + return warped_latents + + +class TextToVideoZeroPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + TextualInversionLoaderMixin, + StableDiffusionLoraLoaderMixin, + FromSingleFileMixin, +): + _last_supported_version = "0.33.1" + r""" + Pipeline for zero-shot text-to-video generation using Stable Diffusion. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + tokenizer (`CLIPTokenizer`): + A [`~transformers.CLIPTokenizer`] to tokenize text. + unet ([`UNet2DConditionModel`]): + A [`UNet3DConditionModel`] to denoise the encoded video latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + safety_checker ([`StableDiffusionSafetyChecker`]): + Classification module that estimates whether generated images could be considered offensive or harmful. + Please refer to the [model card](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5) for + more details about a model's potential harms. + feature_extractor ([`CLIPImageProcessor`]): + A [`CLIPImageProcessor`] to extract features from generated images; used as inputs to the `safety_checker`. + """ + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + safety_checker: StableDiffusionSafetyChecker, + feature_extractor: CLIPImageProcessor, + requires_safety_checker: bool = True, + ): + super().__init__() + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + unet=unet, + scheduler=scheduler, + safety_checker=safety_checker, + feature_extractor=feature_extractor, + ) + if safety_checker is None and requires_safety_checker: + logger.warning( + f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure" + " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered" + " results in services or applications open to the public. Both the diffusers team and Hugging Face" + " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling" + " it only for use-cases that involve analyzing network behavior or auditing its results. For more" + " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ." + ) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + def forward_loop(self, x_t0, t0, t1, generator): + """ + Perform DDPM forward process from time t0 to t1. This is the same as adding noise with corresponding variance. + + Args: + x_t0: + Latent code at time t0. + t0: + Timestep at t0. + t1: + Timestamp at t1. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + + Returns: + x_t1: + Forward process applied to x_t0 from time t0 to t1. + """ + eps = randn_tensor(x_t0.size(), generator=generator, dtype=x_t0.dtype, device=x_t0.device) + alpha_vec = torch.prod(self.scheduler.alphas[t0:t1]) + x_t1 = torch.sqrt(alpha_vec) * x_t0 + torch.sqrt(1 - alpha_vec) * eps + return x_t1 + + def backward_loop( + self, + latents, + timesteps, + prompt_embeds, + guidance_scale, + callback, + callback_steps, + num_warmup_steps, + extra_step_kwargs, + cross_attention_kwargs=None, + ): + """ + Perform backward process given list of time steps. + + Args: + latents: + Latents at time timesteps[0]. + timesteps: + Time steps along which to perform backward process. + prompt_embeds: + Pre-generated text embeddings. + guidance_scale: + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + extra_step_kwargs: + Extra_step_kwargs. + cross_attention_kwargs: + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + num_warmup_steps: + number of warmup steps. + + Returns: + latents: + Latents of backward process output at time timesteps[-1]. + """ + do_classifier_free_guidance = guidance_scale > 1.0 + num_steps = (len(timesteps) - num_warmup_steps) // self.scheduler.order + with self.progress_bar(total=num_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + ).sample + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + return latents.clone().detach() + + # Copied from diffusers.pipelines.stable_diffusion_k_diffusion.pipeline_stable_diffusion_k_diffusion.StableDiffusionKDiffusionPipeline.check_inputs + def check_inputs( + self, + prompt, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]], + video_length: Optional[int] = 8, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_videos_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + motion_field_strength_x: float = 12, + motion_field_strength_y: float = 12, + output_type: Optional[str] = "tensor", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: Optional[int] = 1, + t0: int = 44, + t1: int = 47, + frame_ids: Optional[List[int]] = None, + ): + """ + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + video_length (`int`, *optional*, defaults to 8): + The number of generated video frames. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 7.5): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in video generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of videos to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for video + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated video. Choose between `"latent"` and `"np"`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a + [`~pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.TextToVideoPipelineOutput`] instead of + a plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + motion_field_strength_x (`float`, *optional*, defaults to 12): + Strength of motion in generated video along x-axis. See the + [paper](https://huggingface.co/papers/2303.13439), Sect. 3.3.1. + motion_field_strength_y (`float`, *optional*, defaults to 12): + Strength of motion in generated video along y-axis. See the + [paper](https://huggingface.co/papers/2303.13439), Sect. 3.3.1. + t0 (`int`, *optional*, defaults to 44): + Timestep t0. Should be in the range [0, num_inference_steps - 1]. See the + [paper](https://huggingface.co/papers/2303.13439), Sect. 3.3.1. + t1 (`int`, *optional*, defaults to 47): + Timestep t0. Should be in the range [t0 + 1, num_inference_steps - 1]. See the + [paper](https://huggingface.co/papers/2303.13439), Sect. 3.3.1. + frame_ids (`List[int]`, *optional*): + Indexes of the frames that are being generated. This is used when generating longer videos + chunk-by-chunk. + + Returns: + [`~pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.TextToVideoPipelineOutput`]: + The output contains a `ndarray` of the generated video, when `output_type` != `"latent"`, otherwise a + latent code of generated videos and a list of `bool`s indicating whether the corresponding generated + video contains "not-safe-for-work" (nsfw) content.. + """ + assert video_length > 0 + if frame_ids is None: + frame_ids = list(range(video_length)) + assert len(frame_ids) == video_length + + assert num_videos_per_prompt == 1 + + # set the processor + original_attn_proc = self.unet.attn_processors + processor = ( + CrossFrameAttnProcessor2_0(batch_size=2) + if hasattr(F, "scaled_dot_product_attention") + else CrossFrameAttnProcessor(batch_size=2) + ) + self.unet.set_attn_processor(processor) + + if isinstance(prompt, str): + prompt = [prompt] + if isinstance(negative_prompt, str): + negative_prompt = [negative_prompt] + + # Default height and width to unet + height = height or self.unet.config.sample_size * self.vae_scale_factor + width = width or self.unet.config.sample_size * self.vae_scale_factor + + # Check inputs. Raise error if not correct + self.check_inputs(prompt, height, width, callback_steps) + + # Define call parameters + batch_size = 1 if isinstance(prompt, str) else len(prompt) + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # Encode input prompt + prompt_embeds_tuple = self.encode_prompt( + prompt, device, num_videos_per_prompt, do_classifier_free_guidance, negative_prompt + ) + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + # Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # Prepare latent variables + num_channels_latents = self.unet.config.in_channels + latents = self.prepare_latents( + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + # Prepare extra step kwargs. + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + + # Perform the first backward process up to time T_1 + x_1_t1 = self.backward_loop( + timesteps=timesteps[: -t1 - 1], + prompt_embeds=prompt_embeds, + latents=latents, + guidance_scale=guidance_scale, + callback=callback, + callback_steps=callback_steps, + extra_step_kwargs=extra_step_kwargs, + num_warmup_steps=num_warmup_steps, + ) + scheduler_copy = copy.deepcopy(self.scheduler) + + # Perform the second backward process up to time T_0 + x_1_t0 = self.backward_loop( + timesteps=timesteps[-t1 - 1 : -t0 - 1], + prompt_embeds=prompt_embeds, + latents=x_1_t1, + guidance_scale=guidance_scale, + callback=callback, + callback_steps=callback_steps, + extra_step_kwargs=extra_step_kwargs, + num_warmup_steps=0, + ) + + # Propagate first frame latents at time T_0 to remaining frames + x_2k_t0 = x_1_t0.repeat(video_length - 1, 1, 1, 1) + + # Add motion in latents at time T_0 + x_2k_t0 = create_motion_field_and_warp_latents( + motion_field_strength_x=motion_field_strength_x, + motion_field_strength_y=motion_field_strength_y, + latents=x_2k_t0, + frame_ids=frame_ids[1:], + ) + + # Perform forward process up to time T_1 + x_2k_t1 = self.forward_loop( + x_t0=x_2k_t0, + t0=timesteps[-t0 - 1].item(), + t1=timesteps[-t1 - 1].item(), + generator=generator, + ) + + # Perform backward process from time T_1 to 0 + x_1k_t1 = torch.cat([x_1_t1, x_2k_t1]) + b, l, d = prompt_embeds.size() + prompt_embeds = prompt_embeds[:, None].repeat(1, video_length, 1, 1).reshape(b * video_length, l, d) + + self.scheduler = scheduler_copy + x_1k_0 = self.backward_loop( + timesteps=timesteps[-t1 - 1 :], + prompt_embeds=prompt_embeds, + latents=x_1k_t1, + guidance_scale=guidance_scale, + callback=callback, + callback_steps=callback_steps, + extra_step_kwargs=extra_step_kwargs, + num_warmup_steps=0, + ) + latents = x_1k_0 + + # manually for max memory savings + if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: + self.unet.to("cpu") + empty_device_cache() + + if output_type == "latent": + image = latents + has_nsfw_concept = None + else: + image = self.decode_latents(latents) + # Run safety checker + image, has_nsfw_concept = self.run_safety_checker(image, device, prompt_embeds.dtype) + + # Offload all models + self.maybe_free_model_hooks() + # make sure to set the original attention processors back + self.unet.set_attn_processor(original_attn_proc) + + if not return_dict: + return (image, has_nsfw_concept) + + return TextToVideoPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept) + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker + def run_safety_checker(self, image, device, dtype): + if self.safety_checker is None: + has_nsfw_concept = None + else: + if torch.is_tensor(image): + feature_extractor_input = self.image_processor.postprocess(image, output_type="pil") + else: + feature_extractor_input = self.image_processor.numpy_to_pil(image) + safety_checker_input = self.feature_extractor(feature_extractor_input, return_tensors="pt").to(device) + image, has_nsfw_concept = self.safety_checker( + images=image, clip_input=safety_checker_input.pixel_values.to(dtype) + ) + return image, has_nsfw_concept + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + def decode_latents(self, latents): + latents = 1 / self.vae.config.scaling_factor * latents + image = self.vae.decode(latents, return_dict=False)[0] + image = (image / 2 + 0.5).clamp(0, 1) + # we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16 + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + return image diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_zero_sdxl.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_zero_sdxl.py new file mode 100644 index 0000000000000000000000000000000000000000..288aae6c0d4483b5285949e5da94c3d0bf440d15 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/text_to_video_synthesis/pipeline_text_to_video_zero_sdxl.py @@ -0,0 +1,1354 @@ +import copy +import inspect +from dataclasses import dataclass +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import numpy as np +import PIL +import torch +import torch.nn.functional as F +from torch.nn.functional import grid_sample +from transformers import ( + CLIPImageProcessor, + CLIPTextModel, + CLIPTextModelWithProjection, + CLIPTokenizer, + CLIPVisionModelWithProjection, +) + +from ...image_processor import VaeImageProcessor +from ...loaders import StableDiffusionXLLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL, UNet2DConditionModel +from ...models.attention_processor import ( + AttnProcessor2_0, + FusedAttnProcessor2_0, + XFormersAttnProcessor, +) +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + BaseOutput, + is_invisible_watermark_available, + logging, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, StableDiffusionMixin + + +if is_invisible_watermark_available(): + from ..stable_diffusion_xl.watermark import StableDiffusionXLWatermarker + + +from ...utils import is_torch_xla_available + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.rearrange_0 +def rearrange_0(tensor, f): + F, C, H, W = tensor.size() + tensor = torch.permute(torch.reshape(tensor, (F // f, f, C, H, W)), (0, 2, 1, 3, 4)) + return tensor + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.rearrange_1 +def rearrange_1(tensor): + B, C, F, H, W = tensor.size() + return torch.reshape(torch.permute(tensor, (0, 2, 1, 3, 4)), (B * F, C, H, W)) + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.rearrange_3 +def rearrange_3(tensor, f): + F, D, C = tensor.size() + return torch.reshape(tensor, (F // f, f, D, C)) + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.rearrange_4 +def rearrange_4(tensor): + B, F, D, C = tensor.size() + return torch.reshape(tensor, (B * F, D, C)) + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.CrossFrameAttnProcessor +class CrossFrameAttnProcessor: + """ + Cross frame attention processor. Each frame attends the first frame. + + Args: + batch_size: The number that represents actual batch size, other than the frames. + For example, calling unet with a single prompt and num_images_per_prompt=1, batch_size should be equal to + 2, due to classifier-free guidance. + """ + + def __init__(self, batch_size=2): + self.batch_size = batch_size + + def __call__(self, attn, hidden_states, encoder_hidden_states=None, attention_mask=None): + batch_size, sequence_length, _ = hidden_states.shape + attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size) + query = attn.to_q(hidden_states) + + is_cross_attention = encoder_hidden_states is not None + if encoder_hidden_states is None: + encoder_hidden_states = hidden_states + elif attn.norm_cross: + encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states) + + key = attn.to_k(encoder_hidden_states) + value = attn.to_v(encoder_hidden_states) + + # Cross Frame Attention + if not is_cross_attention: + video_length = key.size()[0] // self.batch_size + first_frame_index = [0] * video_length + + # rearrange keys to have batch and frames in the 1st and 2nd dims respectively + key = rearrange_3(key, video_length) + key = key[:, first_frame_index] + # rearrange values to have batch and frames in the 1st and 2nd dims respectively + value = rearrange_3(value, video_length) + value = value[:, first_frame_index] + + # rearrange back to original shape + key = rearrange_4(key) + value = rearrange_4(value) + + query = attn.head_to_batch_dim(query) + key = attn.head_to_batch_dim(key) + value = attn.head_to_batch_dim(value) + + attention_probs = attn.get_attention_scores(query, key, attention_mask) + hidden_states = torch.bmm(attention_probs, value) + hidden_states = attn.batch_to_head_dim(hidden_states) + + # linear proj + hidden_states = attn.to_out[0](hidden_states) + # dropout + hidden_states = attn.to_out[1](hidden_states) + + return hidden_states + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.CrossFrameAttnProcessor2_0 +class CrossFrameAttnProcessor2_0: + """ + Cross frame attention processor with scaled_dot_product attention of Pytorch 2.0. + + Args: + batch_size: The number that represents actual batch size, other than the frames. + For example, calling unet with a single prompt and num_images_per_prompt=1, batch_size should be equal to + 2, due to classifier-free guidance. + """ + + def __init__(self, batch_size=2): + if not hasattr(F, "scaled_dot_product_attention"): + raise ImportError("AttnProcessor2_0 requires PyTorch 2.0, to use it, please upgrade PyTorch to 2.0.") + self.batch_size = batch_size + + def __call__(self, attn, hidden_states, encoder_hidden_states=None, attention_mask=None): + batch_size, sequence_length, _ = ( + hidden_states.shape if encoder_hidden_states is None else encoder_hidden_states.shape + ) + inner_dim = hidden_states.shape[-1] + + if attention_mask is not None: + attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size) + # scaled_dot_product_attention expects attention_mask shape to be + # (batch, heads, source_length, target_length) + attention_mask = attention_mask.view(batch_size, attn.heads, -1, attention_mask.shape[-1]) + + query = attn.to_q(hidden_states) + + is_cross_attention = encoder_hidden_states is not None + if encoder_hidden_states is None: + encoder_hidden_states = hidden_states + elif attn.norm_cross: + encoder_hidden_states = attn.norm_encoder_hidden_states(encoder_hidden_states) + + key = attn.to_k(encoder_hidden_states) + value = attn.to_v(encoder_hidden_states) + + # Cross Frame Attention + if not is_cross_attention: + video_length = max(1, key.size()[0] // self.batch_size) + first_frame_index = [0] * video_length + + # rearrange keys to have batch and frames in the 1st and 2nd dims respectively + key = rearrange_3(key, video_length) + key = key[:, first_frame_index] + # rearrange values to have batch and frames in the 1st and 2nd dims respectively + value = rearrange_3(value, video_length) + value = value[:, first_frame_index] + + # rearrange back to original shape + key = rearrange_4(key) + value = rearrange_4(value) + + head_dim = inner_dim // attn.heads + query = query.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2) + key = key.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2) + value = value.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2) + + # the output of sdp = (batch, num_heads, seq_len, head_dim) + # TODO: add support for attn.scale when we move to Torch 2.1 + hidden_states = F.scaled_dot_product_attention( + query, key, value, attn_mask=attention_mask, dropout_p=0.0, is_causal=False + ) + + hidden_states = hidden_states.transpose(1, 2).reshape(batch_size, -1, attn.heads * head_dim) + hidden_states = hidden_states.to(query.dtype) + + # linear proj + hidden_states = attn.to_out[0](hidden_states) + # dropout + hidden_states = attn.to_out[1](hidden_states) + return hidden_states + + +@dataclass +class TextToVideoSDXLPipelineOutput(BaseOutput): + """ + Output class for zero-shot text-to-video pipeline. + + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or numpy array of shape `(batch_size, height, width, + num_channels)`. PIL images or numpy array present the denoised images of the diffusion pipeline. + """ + + images: Union[List[PIL.Image.Image], np.ndarray] + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.coords_grid +def coords_grid(batch, ht, wd, device): + # Adapted from https://github.com/princeton-vl/RAFT/blob/master/core/utils/utils.py + coords = torch.meshgrid(torch.arange(ht, device=device), torch.arange(wd, device=device)) + coords = torch.stack(coords[::-1], dim=0).float() + return coords[None].repeat(batch, 1, 1, 1) + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.warp_single_latent +def warp_single_latent(latent, reference_flow): + """ + Warp latent of a single frame with given flow + + Args: + latent: latent code of a single frame + reference_flow: flow which to warp the latent with + + Returns: + warped: warped latent + """ + _, _, H, W = reference_flow.size() + _, _, h, w = latent.size() + coords0 = coords_grid(1, H, W, device=latent.device).to(latent.dtype) + + coords_t0 = coords0 + reference_flow + coords_t0[:, 0] /= W + coords_t0[:, 1] /= H + + coords_t0 = coords_t0 * 2.0 - 1.0 + coords_t0 = F.interpolate(coords_t0, size=(h, w), mode="bilinear") + coords_t0 = torch.permute(coords_t0, (0, 2, 3, 1)) + + warped = grid_sample(latent, coords_t0, mode="nearest", padding_mode="reflection") + return warped + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.create_motion_field +def create_motion_field(motion_field_strength_x, motion_field_strength_y, frame_ids, device, dtype): + """ + Create translation motion field + + Args: + motion_field_strength_x: motion strength along x-axis + motion_field_strength_y: motion strength along y-axis + frame_ids: indexes of the frames the latents of which are being processed. + This is needed when we perform chunk-by-chunk inference + device: device + dtype: dtype + + Returns: + + """ + seq_length = len(frame_ids) + reference_flow = torch.zeros((seq_length, 2, 512, 512), device=device, dtype=dtype) + for fr_idx in range(seq_length): + reference_flow[fr_idx, 0, :, :] = motion_field_strength_x * (frame_ids[fr_idx]) + reference_flow[fr_idx, 1, :, :] = motion_field_strength_y * (frame_ids[fr_idx]) + return reference_flow + + +# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.create_motion_field_and_warp_latents +def create_motion_field_and_warp_latents(motion_field_strength_x, motion_field_strength_y, frame_ids, latents): + """ + Creates translation motion and warps the latents accordingly + + Args: + motion_field_strength_x: motion strength along x-axis + motion_field_strength_y: motion strength along y-axis + frame_ids: indexes of the frames the latents of which are being processed. + This is needed when we perform chunk-by-chunk inference + latents: latent codes of frames + + Returns: + warped_latents: warped latents + """ + motion_field = create_motion_field( + motion_field_strength_x=motion_field_strength_x, + motion_field_strength_y=motion_field_strength_y, + frame_ids=frame_ids, + device=latents.device, + dtype=latents.dtype, + ) + warped_latents = latents.clone().detach() + for i in range(len(warped_latents)): + warped_latents[i] = warp_single_latent(latents[i][None], motion_field[i][None]) + return warped_latents + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.rescale_noise_cfg +def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0): + r""" + Rescales `noise_cfg` tensor based on `guidance_rescale` to improve image quality and fix overexposure. Based on + Section 3.4 from [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). + + Args: + noise_cfg (`torch.Tensor`): + The predicted noise tensor for the guided diffusion process. + noise_pred_text (`torch.Tensor`): + The predicted noise tensor for the text-guided diffusion process. + guidance_rescale (`float`, *optional*, defaults to 0.0): + A rescale factor applied to the noise predictions. + + Returns: + noise_cfg (`torch.Tensor`): The rescaled noise prediction tensor. + """ + std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True) + std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True) + # rescale the results from guidance (fixes overexposure) + noise_pred_rescaled = noise_cfg * (std_text / std_cfg) + # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images + noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg + return noise_cfg + + +class TextToVideoZeroSDXLPipeline( + DeprecatedPipelineMixin, + DiffusionPipeline, + StableDiffusionMixin, + StableDiffusionXLLoraLoaderMixin, + TextualInversionLoaderMixin, +): + _last_supported_version = "0.33.1" + r""" + Pipeline for zero-shot text-to-video generation using Stable Diffusion XL. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder. Stable Diffusion XL uses the text portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + text_encoder_2 ([` CLIPTextModelWithProjection`]): + Second frozen text-encoder. Stable Diffusion XL uses the text and pool portion of + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModelWithProjection), + specifically the + [laion/CLIP-ViT-bigG-14-laion2B-39B-b160k](https://huggingface.co/laion/CLIP-ViT-bigG-14-laion2B-39B-b160k) + variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`CLIPTokenizer`): + Second Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of + [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->unet->vae" + _optional_components = [ + "tokenizer", + "tokenizer_2", + "text_encoder", + "text_encoder_2", + "image_encoder", + "feature_extractor", + ] + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + text_encoder_2: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + tokenizer_2: CLIPTokenizer, + unet: UNet2DConditionModel, + scheduler: KarrasDiffusionSchedulers, + image_encoder: CLIPVisionModelWithProjection = None, + feature_extractor: CLIPImageProcessor = None, + force_zeros_for_empty_prompt: bool = True, + add_watermarker: Optional[bool] = None, + ): + super().__init__() + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + unet=unet, + scheduler=scheduler, + image_encoder=image_encoder, + feature_extractor=feature_extractor, + ) + self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt) + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + self.default_sample_size = ( + self.unet.config.sample_size + if hasattr(self, "unet") and self.unet is not None and hasattr(self.unet.config, "sample_size") + else 128 + ) + + add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available() + + if add_watermarker: + self.watermark = StableDiffusionXLWatermarker() + else: + self.watermark = None + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.upcast_vae + def upcast_vae(self): + dtype = self.vae.dtype + self.vae.to(dtype=torch.float32) + use_torch_2_0_or_xformers = isinstance( + self.vae.decoder.mid_block.attentions[0].processor, + ( + AttnProcessor2_0, + XFormersAttnProcessor, + FusedAttnProcessor2_0, + ), + ) + # if xformers or torch_2_0 is used attention block does not need + # to be in float32 which can save lots of memory + if use_torch_2_0_or_xformers: + self.vae.post_quant_conv.to(dtype) + self.vae.decoder.conv_in.to(dtype) + self.vae.decoder.mid_block.to(dtype) + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline._get_add_time_ids + def _get_add_time_ids( + self, original_size, crops_coords_top_left, target_size, dtype, text_encoder_projection_dim=None + ): + add_time_ids = list(original_size + crops_coords_top_left + target_size) + + passed_add_embed_dim = ( + self.unet.config.addition_time_embed_dim * len(add_time_ids) + text_encoder_projection_dim + ) + expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features + + if expected_add_embed_dim != passed_add_embed_dim: + raise ValueError( + f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`." + ) + + add_time_ids = torch.tensor([add_time_ids], dtype=dtype) + return add_time_ids + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None): + shape = ( + batch_size, + num_channels_latents, + int(height) // self.vae_scale_factor, + int(width) // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def check_inputs( + self, + prompt, + prompt_2, + height, + width, + callback_steps, + negative_prompt=None, + negative_prompt_2=None, + prompt_embeds=None, + negative_prompt_embeds=None, + pooled_prompt_embeds=None, + negative_pooled_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 8 != 0 or width % 8 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") + + if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt_2 is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt_2`: {prompt_2} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif prompt_2 is not None and (not isinstance(prompt_2, str) and not isinstance(prompt_2, list)): + raise ValueError(f"`prompt_2` has to be of type `str` or `list` but is {type(prompt_2)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + elif negative_prompt_2 is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt_2`: {negative_prompt_2} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + if negative_prompt_embeds is not None and negative_pooled_prompt_embeds is None: + raise ValueError( + "If `negative_prompt_embeds` are provided, `negative_pooled_prompt_embeds` also have to be passed. Make sure to generate `negative_pooled_prompt_embeds` from the same text encoder that was used to generate `negative_prompt_embeds`." + ) + + # Copied from diffusers.pipelines.stable_diffusion_xl.pipeline_stable_diffusion_xl.StableDiffusionXLPipeline.encode_prompt + def encode_prompt( + self, + prompt: str, + prompt_2: Optional[str] = None, + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[str] = None, + negative_prompt_2: Optional[str] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionXLLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale) + else: + scale_lora_layers(self.text_encoder_2, lora_scale) + + prompt = [prompt] if isinstance(prompt, str) else prompt + + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # Define tokenizers and text encoders + tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2] + text_encoders = ( + [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2] + ) + + if prompt_embeds is None: + prompt_2 = prompt_2 or prompt + prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2 + + # textual inversion: process multi-vector tokens if necessary + prompt_embeds_list = [] + prompts = [prompt, prompt_2] + for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, tokenizer) + + text_inputs = tokenizer( + prompt, + padding="max_length", + max_length=tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {tokenizer.model_max_length} tokens: {removed_text}" + ) + + prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if pooled_prompt_embeds is None and prompt_embeds[0].ndim == 2: + pooled_prompt_embeds = prompt_embeds[0] + + if clip_skip is None: + prompt_embeds = prompt_embeds.hidden_states[-2] + else: + # "2" because SDXL always indexes from the penultimate layer. + prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)] + + prompt_embeds_list.append(prompt_embeds) + + prompt_embeds = torch.concat(prompt_embeds_list, dim=-1) + + # get unconditional embeddings for classifier free guidance + zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt + if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt: + negative_prompt_embeds = torch.zeros_like(prompt_embeds) + negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds) + elif do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt_2 = negative_prompt_2 or negative_prompt + + # normalize str to list + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + negative_prompt_2 = ( + batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2 + ) + + uncond_tokens: List[str] + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = [negative_prompt, negative_prompt_2] + + negative_prompt_embeds_list = [] + for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders): + if isinstance(self, TextualInversionLoaderMixin): + negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = tokenizer( + negative_prompt, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + negative_prompt_embeds = text_encoder( + uncond_input.input_ids.to(device), + output_hidden_states=True, + ) + + # We are only ALWAYS interested in the pooled output of the final text encoder + if negative_pooled_prompt_embeds is None and negative_prompt_embeds[0].ndim == 2: + negative_pooled_prompt_embeds = negative_prompt_embeds[0] + negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2] + + negative_prompt_embeds_list.append(negative_prompt_embeds) + + negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1) + + if self.text_encoder_2 is not None: + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + prompt_embeds = prompt_embeds.to(dtype=self.unet.dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + if self.text_encoder_2 is not None: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device) + else: + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.unet.dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + if do_classifier_free_guidance: + negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view( + bs_embed * num_images_per_prompt, -1 + ) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds + + # Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.TextToVideoZeroPipeline.forward_loop + def forward_loop(self, x_t0, t0, t1, generator): + """ + Perform DDPM forward process from time t0 to t1. This is the same as adding noise with corresponding variance. + + Args: + x_t0: + Latent code at time t0. + t0: + Timestep at t0. + t1: + Timestamp at t1. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + + Returns: + x_t1: + Forward process applied to x_t0 from time t0 to t1. + """ + eps = randn_tensor(x_t0.size(), generator=generator, dtype=x_t0.dtype, device=x_t0.device) + alpha_vec = torch.prod(self.scheduler.alphas[t0:t1]) + x_t1 = torch.sqrt(alpha_vec) * x_t0 + torch.sqrt(1 - alpha_vec) * eps + return x_t1 + + def backward_loop( + self, + latents, + timesteps, + prompt_embeds, + guidance_scale, + callback, + callback_steps, + num_warmup_steps, + extra_step_kwargs, + add_text_embeds, + add_time_ids, + cross_attention_kwargs=None, + guidance_rescale: float = 0.0, + ): + """ + Perform backward process given list of time steps + + Args: + latents: + Latents at time timesteps[0]. + timesteps: + Time steps along which to perform backward process. + prompt_embeds: + Pre-generated text embeddings. + guidance_scale: + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + extra_step_kwargs: + Extra_step_kwargs. + cross_attention_kwargs: + A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in + [`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + num_warmup_steps: + number of warmup steps. + + Returns: + latents: latents of backward process output at time timesteps[-1] + """ + + do_classifier_free_guidance = guidance_scale > 1.0 + num_steps = (len(timesteps) - num_warmup_steps) // self.scheduler.order + + with self.progress_bar(total=num_steps) as progress_bar: + for i, t in enumerate(timesteps): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents + latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) + + # predict the noise residual + added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids} + noise_pred = self.unet( + latent_model_input, + t, + encoder_hidden_states=prompt_embeds, + cross_attention_kwargs=cross_attention_kwargs, + added_cond_kwargs=added_cond_kwargs, + return_dict=False, + )[0] + + # perform guidance + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) + + if do_classifier_free_guidance and guidance_rescale > 0.0: + # Based on 3.4. in https://huggingface.co/papers/2305.08891 + noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=guidance_rescale) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + callback(i, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + return latents.clone().detach() + + @torch.no_grad() + def __call__( + self, + prompt: Union[str, List[str]], + prompt_2: Optional[Union[str, List[str]]] = None, + video_length: Optional[int] = 8, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + denoising_end: Optional[float] = None, + guidance_scale: float = 7.5, + negative_prompt: Optional[Union[str, List[str]]] = None, + negative_prompt_2: Optional[Union[str, List[str]]] = None, + num_videos_per_prompt: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + frame_ids: Optional[List[int]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + pooled_prompt_embeds: Optional[torch.Tensor] = None, + negative_pooled_prompt_embeds: Optional[torch.Tensor] = None, + latents: Optional[torch.Tensor] = None, + motion_field_strength_x: float = 12, + motion_field_strength_y: float = 12, + output_type: Optional[str] = "tensor", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + cross_attention_kwargs: Optional[Dict[str, Any]] = None, + guidance_rescale: float = 0.0, + original_size: Optional[Tuple[int, int]] = None, + crops_coords_top_left: Tuple[int, int] = (0, 0), + target_size: Optional[Tuple[int, int]] = None, + t0: int = 44, + t1: int = 47, + ): + """ + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts to be sent to the `tokenizer_2` and `text_encoder_2`. If not defined, `prompt` is + used in both text-encoders + video_length (`int`, *optional*, defaults to 8): + The number of generated video frames. + height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + denoising_end (`float`, *optional*): + When specified, determines the fraction (between 0.0 and 1.0) of the total denoising process to be + completed before it is intentionally prematurely terminated. As a result, the returned sample will + still retain a substantial amount of noise as determined by the discrete timesteps selected by the + scheduler. The denoising_end parameter should ideally be utilized when this pipeline forms a part of a + "Mixture of Denoisers" multi-pipeline setup, as elaborated in [**Refining the Image + Output**](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/stable_diffusion_xl#refining-the-image-output) + guidance_scale (`float`, *optional*, defaults to 7.5): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + negative_prompt_2 (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation to be sent to `tokenizer_2` and + `text_encoder_2`. If not defined, `negative_prompt` is used in both text-encoders + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of videos to generate per prompt. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) in the DDIM paper: https://huggingface.co/papers/2010.02502. Only + applies to [`schedulers.DDIMScheduler`], will be ignored for others. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + frame_ids (`List[int]`, *optional*): + Indexes of the frames that are being generated. This is used when generating longer videos + chunk-by-chunk. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + negative_pooled_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, pooled negative_prompt_embeds will be generated from `negative_prompt` + input argument. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + motion_field_strength_x (`float`, *optional*, defaults to 12): + Strength of motion in generated video along x-axis. See the + [paper](https://huggingface.co/papers/2303.13439), Sect. 3.3.1. + motion_field_strength_y (`float`, *optional*, defaults to 12): + Strength of motion in generated video along y-axis. See the + [paper](https://huggingface.co/papers/2303.13439), Sect. 3.3.1. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion_xl.StableDiffusionXLPipelineOutput`] instead + of a plain tuple. + callback (`Callable`, *optional*): + A function that will be called every `callback_steps` steps during inference. The function will be + called with the following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function will be called. If not specified, the callback will be + called at every step. + cross_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.cross_attention](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/cross_attention.py). + guidance_rescale (`float`, *optional*, defaults to 0.7): + Guidance rescale factor proposed by [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891) `guidance_scale` is defined as `φ` in equation 16. of + [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891). Guidance rescale factor should fix overexposure when + using zero terminal SNR. + original_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + If `original_size` is not the same as `target_size` the image will appear to be down- or upsampled. + `original_size` defaults to `(width, height)` if not specified. Part of SDXL's micro-conditioning as + explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + crops_coords_top_left (`Tuple[int]`, *optional*, defaults to (0, 0)): + `crops_coords_top_left` can be used to generate an image that appears to be "cropped" from the position + `crops_coords_top_left` downwards. Favorable, well-centered images are usually achieved by setting + `crops_coords_top_left` to (0, 0). Part of SDXL's micro-conditioning as explained in section 2.2 of + [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + target_size (`Tuple[int]`, *optional*, defaults to (1024, 1024)): + For most cases, `target_size` should be set to the desired height and width of the generated image. If + not specified it will default to `(width, height)`. Part of SDXL's micro-conditioning as explained in + section 2.2 of [https://huggingface.co/papers/2307.01952](https://huggingface.co/papers/2307.01952). + t0 (`int`, *optional*, defaults to 44): + Timestep t0. Should be in the range [0, num_inference_steps - 1]. See the + [paper](https://huggingface.co/papers/2303.13439), Sect. 3.3.1. + t1 (`int`, *optional*, defaults to 47): + Timestep t0. Should be in the range [t0 + 1, num_inference_steps - 1]. See the + [paper](https://huggingface.co/papers/2303.13439), Sect. 3.3.1. + + Returns: + [`~pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.TextToVideoSDXLPipelineOutput`] or + `tuple`: [`~pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.TextToVideoSDXLPipelineOutput`] + if `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the + generated images. + """ + assert video_length > 0 + if frame_ids is None: + frame_ids = list(range(video_length)) + assert len(frame_ids) == video_length + + assert num_videos_per_prompt == 1 + + # set the processor + original_attn_proc = self.unet.attn_processors + processor = ( + CrossFrameAttnProcessor2_0(batch_size=2) + if hasattr(F, "scaled_dot_product_attention") + else CrossFrameAttnProcessor(batch_size=2) + ) + self.unet.set_attn_processor(processor) + + if isinstance(prompt, str): + prompt = [prompt] + if isinstance(negative_prompt, str): + negative_prompt = [negative_prompt] + + # 0. Default height and width to unet + height = height or self.default_sample_size * self.vae_scale_factor + width = width or self.default_sample_size * self.vae_scale_factor + + original_size = original_size or (height, width) + target_size = target_size or (height, width) + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + prompt_2, + height, + width, + callback_steps, + negative_prompt, + negative_prompt_2, + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) + + # 2. Define call parameters + batch_size = ( + 1 if isinstance(prompt, str) else len(prompt) if isinstance(prompt, list) else prompt_embeds.shape[0] + ) + device = self._execution_device + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + do_classifier_free_guidance = guidance_scale > 1.0 + + # 3. Encode input prompt + text_encoder_lora_scale = ( + cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None + ) + ( + prompt_embeds, + negative_prompt_embeds, + pooled_prompt_embeds, + negative_pooled_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + prompt_2=prompt_2, + device=device, + num_images_per_prompt=num_videos_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + negative_prompt_2=negative_prompt_2, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + negative_pooled_prompt_embeds=negative_pooled_prompt_embeds, + lora_scale=text_encoder_lora_scale, + ) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.unet.config.in_channels + + latents = self.prepare_latents( + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + prompt_embeds.dtype, + device, + generator, + latents, + ) + + # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + # 7. Prepare added time ids & embeddings + add_text_embeds = pooled_prompt_embeds + if self.text_encoder_2 is None: + text_encoder_projection_dim = int(pooled_prompt_embeds.shape[-1]) + else: + text_encoder_projection_dim = self.text_encoder_2.config.projection_dim + + add_time_ids = self._get_add_time_ids( + original_size, + crops_coords_top_left, + target_size, + dtype=prompt_embeds.dtype, + text_encoder_projection_dim=text_encoder_projection_dim, + ) + + if do_classifier_free_guidance: + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0) + add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0) + add_time_ids = torch.cat([add_time_ids, add_time_ids], dim=0) + + prompt_embeds = prompt_embeds.to(device) + add_text_embeds = add_text_embeds.to(device) + add_time_ids = add_time_ids.to(device).repeat(batch_size * num_videos_per_prompt, 1) + + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + + # Perform the first backward process up to time T_1 + x_1_t1 = self.backward_loop( + timesteps=timesteps[: -t1 - 1], + prompt_embeds=prompt_embeds, + latents=latents, + guidance_scale=guidance_scale, + callback=callback, + callback_steps=callback_steps, + extra_step_kwargs=extra_step_kwargs, + num_warmup_steps=num_warmup_steps, + add_text_embeds=add_text_embeds, + add_time_ids=add_time_ids, + ) + + scheduler_copy = copy.deepcopy(self.scheduler) + + # Perform the second backward process up to time T_0 + x_1_t0 = self.backward_loop( + timesteps=timesteps[-t1 - 1 : -t0 - 1], + prompt_embeds=prompt_embeds, + latents=x_1_t1, + guidance_scale=guidance_scale, + callback=callback, + callback_steps=callback_steps, + extra_step_kwargs=extra_step_kwargs, + num_warmup_steps=0, + add_text_embeds=add_text_embeds, + add_time_ids=add_time_ids, + ) + + # Propagate first frame latents at time T_0 to remaining frames + x_2k_t0 = x_1_t0.repeat(video_length - 1, 1, 1, 1) + + # Add motion in latents at time T_0 + x_2k_t0 = create_motion_field_and_warp_latents( + motion_field_strength_x=motion_field_strength_x, + motion_field_strength_y=motion_field_strength_y, + latents=x_2k_t0, + frame_ids=frame_ids[1:], + ) + + # Perform forward process up to time T_1 + x_2k_t1 = self.forward_loop( + x_t0=x_2k_t0, + t0=timesteps[-t0 - 1].to(torch.long), + t1=timesteps[-t1 - 1].to(torch.long), + generator=generator, + ) + + # Perform backward process from time T_1 to 0 + latents = torch.cat([x_1_t1, x_2k_t1]) + + self.scheduler = scheduler_copy + timesteps = timesteps[-t1 - 1 :] + + b, l, d = prompt_embeds.size() + prompt_embeds = prompt_embeds[:, None].repeat(1, video_length, 1, 1).reshape(b * video_length, l, d) + + b, k = add_text_embeds.size() + add_text_embeds = add_text_embeds[:, None].repeat(1, video_length, 1).reshape(b * video_length, k) + + b, k = add_time_ids.size() + add_time_ids = add_time_ids[:, None].repeat(1, video_length, 1).reshape(b * video_length, k) + + # 7.1 Apply denoising_end + if denoising_end is not None and isinstance(denoising_end, float) and denoising_end > 0 and denoising_end < 1: + discrete_timestep_cutoff = int( + round( + self.scheduler.config.num_train_timesteps + - (denoising_end * self.scheduler.config.num_train_timesteps) + ) + ) + num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps))) + timesteps = timesteps[:num_inference_steps] + + x_1k_0 = self.backward_loop( + timesteps=timesteps, + prompt_embeds=prompt_embeds, + latents=latents, + guidance_scale=guidance_scale, + callback=callback, + callback_steps=callback_steps, + extra_step_kwargs=extra_step_kwargs, + num_warmup_steps=0, + add_text_embeds=add_text_embeds, + add_time_ids=add_time_ids, + ) + + latents = x_1k_0 + + if not output_type == "latent": + # make sure the VAE is in float32 mode, as it overflows in float16 + needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast + + if needs_upcasting: + self.upcast_vae() + latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype) + + image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0] + + # cast back to fp16 if needed + if needs_upcasting: + self.vae.to(dtype=torch.float16) + else: + image = latents + return TextToVideoSDXLPipelineOutput(images=image) + + # apply watermark if available + if self.watermark is not None: + image = self.watermark.apply_watermark(image) + + image = self.image_processor.postprocess(image, output_type=output_type) + + self.maybe_free_model_hooks() + # make sure to set the original attention processors back + self.unet.set_attn_processor(original_attn_proc) + + if not return_dict: + return (image,) + + return TextToVideoSDXLPipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/transformers_loading_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/transformers_loading_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..b52d154d6ba2fb2e91a599731f3e4caf7aef5a77 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/transformers_loading_utils.py @@ -0,0 +1,121 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +import contextlib +import os +import tempfile +from typing import TYPE_CHECKING, Dict + +from huggingface_hub import DDUFEntry +from tqdm import tqdm + +from ..utils import is_safetensors_available, is_transformers_available, is_transformers_version + + +if TYPE_CHECKING: + from transformers import PreTrainedModel, PreTrainedTokenizer + +if is_transformers_available(): + from transformers import PreTrainedModel, PreTrainedTokenizer + +if is_safetensors_available(): + import safetensors.torch + + +def _load_tokenizer_from_dduf( + cls: "PreTrainedTokenizer", name: str, dduf_entries: Dict[str, DDUFEntry], **kwargs +) -> "PreTrainedTokenizer": + """ + Load a tokenizer from a DDUF archive. + + In practice, `transformers` do not provide a way to load a tokenizer from a DDUF archive. This function is a + workaround by extracting the tokenizer files from the DDUF archive and loading the tokenizer from the extracted + files. There is an extra cost of extracting the files, but of limited impact as the tokenizer files are usually + small-ish. + """ + with tempfile.TemporaryDirectory() as tmp_dir: + for entry_name, entry in dduf_entries.items(): + if entry_name.startswith(name + "/"): + tmp_entry_path = os.path.join(tmp_dir, *entry_name.split("/")) + # need to create intermediary directory if they don't exist + os.makedirs(os.path.dirname(tmp_entry_path), exist_ok=True) + with open(tmp_entry_path, "wb") as f: + with entry.as_mmap() as mm: + f.write(mm) + return cls.from_pretrained(os.path.dirname(tmp_entry_path), **kwargs) + + +def _load_transformers_model_from_dduf( + cls: "PreTrainedModel", name: str, dduf_entries: Dict[str, DDUFEntry], **kwargs +) -> "PreTrainedModel": + """ + Load a transformers model from a DDUF archive. + + In practice, `transformers` do not provide a way to load a model from a DDUF archive. This function is a workaround + by instantiating a model from the config file and loading the weights from the DDUF archive directly. + """ + config_file = dduf_entries.get(f"{name}/config.json") + if config_file is None: + raise EnvironmentError( + f"Could not find a config.json file for component {name} in DDUF file (contains {dduf_entries.keys()})." + ) + generation_config = dduf_entries.get(f"{name}/generation_config.json", None) + + weight_files = [ + entry + for entry_name, entry in dduf_entries.items() + if entry_name.startswith(f"{name}/") and entry_name.endswith(".safetensors") + ] + if not weight_files: + raise EnvironmentError( + f"Could not find any weight file for component {name} in DDUF file (contains {dduf_entries.keys()})." + ) + if not is_safetensors_available(): + raise EnvironmentError( + "Safetensors is not available, cannot load model from DDUF. Please `pip install safetensors`." + ) + if is_transformers_version("<", "4.47.0"): + raise ImportError( + "You need to install `transformers>4.47.0` in order to load a transformers model from a DDUF file. " + "You can install it with: `pip install --upgrade transformers`" + ) + + with tempfile.TemporaryDirectory() as tmp_dir: + from transformers import AutoConfig, GenerationConfig + + tmp_config_file = os.path.join(tmp_dir, "config.json") + with open(tmp_config_file, "w") as f: + f.write(config_file.read_text()) + config = AutoConfig.from_pretrained(tmp_config_file) + if generation_config is not None: + tmp_generation_config_file = os.path.join(tmp_dir, "generation_config.json") + with open(tmp_generation_config_file, "w") as f: + f.write(generation_config.read_text()) + generation_config = GenerationConfig.from_pretrained(tmp_generation_config_file) + state_dict = {} + with contextlib.ExitStack() as stack: + for entry in tqdm(weight_files, desc="Loading state_dict"): # Loop over safetensors files + # Memory-map the safetensors file + mmap = stack.enter_context(entry.as_mmap()) + # Load tensors from the memory-mapped file + tensors = safetensors.torch.load(mmap) + # Update the state dictionary with tensors + state_dict.update(tensors) + return cls.from_pretrained( + pretrained_model_name_or_path=None, + config=config, + generation_config=generation_config, + state_dict=state_dict, + **kwargs, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..c89e899463beede59b8ccf02688f6168b8ee3d77 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/__init__.py @@ -0,0 +1,52 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + is_torch_available, + is_transformers_available, + is_transformers_version, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.25.0")): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import UnCLIPImageVariationPipeline, UnCLIPPipeline + + _dummy_objects.update( + {"UnCLIPImageVariationPipeline": UnCLIPImageVariationPipeline, "UnCLIPPipeline": UnCLIPPipeline} + ) +else: + _import_structure["pipeline_unclip"] = ["UnCLIPPipeline"] + _import_structure["pipeline_unclip_image_variation"] = ["UnCLIPImageVariationPipeline"] + _import_structure["text_proj"] = ["UnCLIPTextProjModel"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.25.0")): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * # noqa F403 + else: + from .pipeline_unclip import UnCLIPPipeline + from .pipeline_unclip_image_variation import UnCLIPImageVariationPipeline + from .text_proj import UnCLIPTextProjModel + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/pipeline_unclip.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/pipeline_unclip.py new file mode 100644 index 0000000000000000000000000000000000000000..bbb9b0eb3ab27983361511da45b672933eeba472 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/pipeline_unclip.py @@ -0,0 +1,504 @@ +# Copyright 2025 Kakao Brain and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import List, Optional, Tuple, Union + +import torch +from torch.nn import functional as F +from transformers import CLIPTextModelWithProjection, CLIPTokenizer +from transformers.models.clip.modeling_clip import CLIPTextModelOutput + +from ...models import PriorTransformer, UNet2DConditionModel, UNet2DModel +from ...schedulers import UnCLIPScheduler +from ...utils import is_torch_xla_available, logging +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, ImagePipelineOutput +from .text_proj import UnCLIPTextProjModel + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +class UnCLIPPipeline(DeprecatedPipelineMixin, DiffusionPipeline): + """ + Pipeline for text-to-image generation using unCLIP. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + text_encoder ([`~transformers.CLIPTextModelWithProjection`]): + Frozen text-encoder. + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + prior ([`PriorTransformer`]): + The canonical unCLIP prior to approximate the image embedding from the text embedding. + text_proj ([`UnCLIPTextProjModel`]): + Utility class to prepare and combine the embeddings before they are passed to the decoder. + decoder ([`UNet2DConditionModel`]): + The decoder to invert the image embedding into an image. + super_res_first ([`UNet2DModel`]): + Super resolution UNet. Used in all but the last step of the super resolution diffusion process. + super_res_last ([`UNet2DModel`]): + Super resolution UNet. Used in the last step of the super resolution diffusion process. + prior_scheduler ([`UnCLIPScheduler`]): + Scheduler used in the prior denoising process (a modified [`DDPMScheduler`]). + decoder_scheduler ([`UnCLIPScheduler`]): + Scheduler used in the decoder denoising process (a modified [`DDPMScheduler`]). + super_res_scheduler ([`UnCLIPScheduler`]): + Scheduler used in the super resolution denoising process (a modified [`DDPMScheduler`]). + + """ + + _last_supported_version = "0.33.1" + _exclude_from_cpu_offload = ["prior"] + + prior: PriorTransformer + decoder: UNet2DConditionModel + text_proj: UnCLIPTextProjModel + text_encoder: CLIPTextModelWithProjection + tokenizer: CLIPTokenizer + super_res_first: UNet2DModel + super_res_last: UNet2DModel + + prior_scheduler: UnCLIPScheduler + decoder_scheduler: UnCLIPScheduler + super_res_scheduler: UnCLIPScheduler + + model_cpu_offload_seq = "text_encoder->text_proj->decoder->super_res_first->super_res_last" + + def __init__( + self, + prior: PriorTransformer, + decoder: UNet2DConditionModel, + text_encoder: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + text_proj: UnCLIPTextProjModel, + super_res_first: UNet2DModel, + super_res_last: UNet2DModel, + prior_scheduler: UnCLIPScheduler, + decoder_scheduler: UnCLIPScheduler, + super_res_scheduler: UnCLIPScheduler, + ): + super().__init__() + + self.register_modules( + prior=prior, + decoder=decoder, + text_encoder=text_encoder, + tokenizer=tokenizer, + text_proj=text_proj, + super_res_first=super_res_first, + super_res_last=super_res_last, + prior_scheduler=prior_scheduler, + decoder_scheduler=decoder_scheduler, + super_res_scheduler=super_res_scheduler, + ) + + def prepare_latents(self, shape, dtype, device, generator, latents, scheduler): + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + text_model_output: Optional[Union[CLIPTextModelOutput, Tuple]] = None, + text_attention_mask: Optional[torch.Tensor] = None, + ): + if text_model_output is None: + batch_size = len(prompt) if isinstance(prompt, list) else 1 + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + text_mask = text_inputs.attention_mask.bool().to(device) + + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + text_input_ids = text_input_ids[:, : self.tokenizer.model_max_length] + + text_encoder_output = self.text_encoder(text_input_ids.to(device)) + + prompt_embeds = text_encoder_output.text_embeds + text_enc_hid_states = text_encoder_output.last_hidden_state + + else: + batch_size = text_model_output[0].shape[0] + prompt_embeds, text_enc_hid_states = text_model_output[0], text_model_output[1] + text_mask = text_attention_mask + + prompt_embeds = prompt_embeds.repeat_interleave(num_images_per_prompt, dim=0) + text_enc_hid_states = text_enc_hid_states.repeat_interleave(num_images_per_prompt, dim=0) + text_mask = text_mask.repeat_interleave(num_images_per_prompt, dim=0) + + if do_classifier_free_guidance: + uncond_tokens = [""] * batch_size + + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + uncond_text_mask = uncond_input.attention_mask.bool().to(device) + negative_prompt_embeds_text_encoder_output = self.text_encoder(uncond_input.input_ids.to(device)) + + negative_prompt_embeds = negative_prompt_embeds_text_encoder_output.text_embeds + uncond_text_enc_hid_states = negative_prompt_embeds_text_encoder_output.last_hidden_state + + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + + seq_len = negative_prompt_embeds.shape[1] + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len) + + seq_len = uncond_text_enc_hid_states.shape[1] + uncond_text_enc_hid_states = uncond_text_enc_hid_states.repeat(1, num_images_per_prompt, 1) + uncond_text_enc_hid_states = uncond_text_enc_hid_states.view( + batch_size * num_images_per_prompt, seq_len, -1 + ) + uncond_text_mask = uncond_text_mask.repeat_interleave(num_images_per_prompt, dim=0) + + # done duplicates + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + text_enc_hid_states = torch.cat([uncond_text_enc_hid_states, text_enc_hid_states]) + + text_mask = torch.cat([uncond_text_mask, text_mask]) + + return prompt_embeds, text_enc_hid_states, text_mask + + @torch.no_grad() + def __call__( + self, + prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: int = 1, + prior_num_inference_steps: int = 25, + decoder_num_inference_steps: int = 25, + super_res_num_inference_steps: int = 7, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + prior_latents: Optional[torch.Tensor] = None, + decoder_latents: Optional[torch.Tensor] = None, + super_res_latents: Optional[torch.Tensor] = None, + text_model_output: Optional[Union[CLIPTextModelOutput, Tuple]] = None, + text_attention_mask: Optional[torch.Tensor] = None, + prior_guidance_scale: float = 4.0, + decoder_guidance_scale: float = 8.0, + output_type: Optional[str] = "pil", + return_dict: bool = True, + ): + """ + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide image generation. This can only be left undefined if `text_model_output` + and `text_attention_mask` is passed. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + prior_num_inference_steps (`int`, *optional*, defaults to 25): + The number of denoising steps for the prior. More denoising steps usually lead to a higher quality + image at the expense of slower inference. + decoder_num_inference_steps (`int`, *optional*, defaults to 25): + The number of denoising steps for the decoder. More denoising steps usually lead to a higher quality + image at the expense of slower inference. + super_res_num_inference_steps (`int`, *optional*, defaults to 7): + The number of denoising steps for super resolution. More denoising steps usually lead to a higher + quality image at the expense of slower inference. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + prior_latents (`torch.Tensor` of shape (batch size, embeddings dimension), *optional*): + Pre-generated noisy latents to be used as inputs for the prior. + decoder_latents (`torch.Tensor` of shape (batch size, channels, height, width), *optional*): + Pre-generated noisy latents to be used as inputs for the decoder. + super_res_latents (`torch.Tensor` of shape (batch size, channels, super res height, super res width), *optional*): + Pre-generated noisy latents to be used as inputs for the decoder. + prior_guidance_scale (`float`, *optional*, defaults to 4.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + decoder_guidance_scale (`float`, *optional*, defaults to 4.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + text_model_output (`CLIPTextModelOutput`, *optional*): + Pre-defined [`CLIPTextModel`] outputs that can be derived from the text encoder. Pre-defined text + outputs can be passed for tasks like text embedding interpolations. Make sure to also pass + `text_attention_mask` in this case. `prompt` can the be left `None`. + text_attention_mask (`torch.Tensor`, *optional*): + Pre-defined CLIP text attention mask that can be derived from the tokenizer. Pre-defined text attention + masks are necessary when passing `text_model_output`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + + Returns: + [`~pipelines.ImagePipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.ImagePipelineOutput`] is returned, otherwise a `tuple` is + returned where the first element is a list with the generated images. + """ + if prompt is not None: + if isinstance(prompt, str): + batch_size = 1 + elif isinstance(prompt, list): + batch_size = len(prompt) + else: + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + else: + batch_size = text_model_output[0].shape[0] + + device = self._execution_device + + batch_size = batch_size * num_images_per_prompt + + do_classifier_free_guidance = prior_guidance_scale > 1.0 or decoder_guidance_scale > 1.0 + + prompt_embeds, text_enc_hid_states, text_mask = self._encode_prompt( + prompt, device, num_images_per_prompt, do_classifier_free_guidance, text_model_output, text_attention_mask + ) + + # prior + + self.prior_scheduler.set_timesteps(prior_num_inference_steps, device=device) + prior_timesteps_tensor = self.prior_scheduler.timesteps + + embedding_dim = self.prior.config.embedding_dim + + prior_latents = self.prepare_latents( + (batch_size, embedding_dim), + prompt_embeds.dtype, + device, + generator, + prior_latents, + self.prior_scheduler, + ) + + for i, t in enumerate(self.progress_bar(prior_timesteps_tensor)): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([prior_latents] * 2) if do_classifier_free_guidance else prior_latents + + predicted_image_embedding = self.prior( + latent_model_input, + timestep=t, + proj_embedding=prompt_embeds, + encoder_hidden_states=text_enc_hid_states, + attention_mask=text_mask, + ).predicted_image_embedding + + if do_classifier_free_guidance: + predicted_image_embedding_uncond, predicted_image_embedding_text = predicted_image_embedding.chunk(2) + predicted_image_embedding = predicted_image_embedding_uncond + prior_guidance_scale * ( + predicted_image_embedding_text - predicted_image_embedding_uncond + ) + + if i + 1 == prior_timesteps_tensor.shape[0]: + prev_timestep = None + else: + prev_timestep = prior_timesteps_tensor[i + 1] + + prior_latents = self.prior_scheduler.step( + predicted_image_embedding, + timestep=t, + sample=prior_latents, + generator=generator, + prev_timestep=prev_timestep, + ).prev_sample + + prior_latents = self.prior.post_process_latents(prior_latents) + + image_embeddings = prior_latents + + # done prior + + # decoder + + text_enc_hid_states, additive_clip_time_embeddings = self.text_proj( + image_embeddings=image_embeddings, + prompt_embeds=prompt_embeds, + text_encoder_hidden_states=text_enc_hid_states, + do_classifier_free_guidance=do_classifier_free_guidance, + ) + + if device.type == "mps": + # HACK: MPS: There is a panic when padding bool tensors, + # so cast to int tensor for the pad and back to bool afterwards + text_mask = text_mask.type(torch.int) + decoder_text_mask = F.pad(text_mask, (self.text_proj.clip_extra_context_tokens, 0), value=1) + decoder_text_mask = decoder_text_mask.type(torch.bool) + else: + decoder_text_mask = F.pad(text_mask, (self.text_proj.clip_extra_context_tokens, 0), value=True) + + self.decoder_scheduler.set_timesteps(decoder_num_inference_steps, device=device) + decoder_timesteps_tensor = self.decoder_scheduler.timesteps + + num_channels_latents = self.decoder.config.in_channels + height = self.decoder.config.sample_size + width = self.decoder.config.sample_size + + decoder_latents = self.prepare_latents( + (batch_size, num_channels_latents, height, width), + text_enc_hid_states.dtype, + device, + generator, + decoder_latents, + self.decoder_scheduler, + ) + + for i, t in enumerate(self.progress_bar(decoder_timesteps_tensor)): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([decoder_latents] * 2) if do_classifier_free_guidance else decoder_latents + + noise_pred = self.decoder( + sample=latent_model_input, + timestep=t, + encoder_hidden_states=text_enc_hid_states, + class_labels=additive_clip_time_embeddings, + attention_mask=decoder_text_mask, + ).sample + + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred_uncond, _ = noise_pred_uncond.split(latent_model_input.shape[1], dim=1) + noise_pred_text, predicted_variance = noise_pred_text.split(latent_model_input.shape[1], dim=1) + noise_pred = noise_pred_uncond + decoder_guidance_scale * (noise_pred_text - noise_pred_uncond) + noise_pred = torch.cat([noise_pred, predicted_variance], dim=1) + + if i + 1 == decoder_timesteps_tensor.shape[0]: + prev_timestep = None + else: + prev_timestep = decoder_timesteps_tensor[i + 1] + + # compute the previous noisy sample x_t -> x_t-1 + decoder_latents = self.decoder_scheduler.step( + noise_pred, t, decoder_latents, prev_timestep=prev_timestep, generator=generator + ).prev_sample + + decoder_latents = decoder_latents.clamp(-1, 1) + + image_small = decoder_latents + + # done decoder + + # super res + + self.super_res_scheduler.set_timesteps(super_res_num_inference_steps, device=device) + super_res_timesteps_tensor = self.super_res_scheduler.timesteps + + channels = self.super_res_first.config.in_channels // 2 + height = self.super_res_first.config.sample_size + width = self.super_res_first.config.sample_size + + super_res_latents = self.prepare_latents( + (batch_size, channels, height, width), + image_small.dtype, + device, + generator, + super_res_latents, + self.super_res_scheduler, + ) + + if device.type == "mps": + # MPS does not support many interpolations + image_upscaled = F.interpolate(image_small, size=[height, width]) + else: + interpolate_antialias = {} + if "antialias" in inspect.signature(F.interpolate).parameters: + interpolate_antialias["antialias"] = True + + image_upscaled = F.interpolate( + image_small, size=[height, width], mode="bicubic", align_corners=False, **interpolate_antialias + ) + + for i, t in enumerate(self.progress_bar(super_res_timesteps_tensor)): + # no classifier free guidance + + if i == super_res_timesteps_tensor.shape[0] - 1: + unet = self.super_res_last + else: + unet = self.super_res_first + + latent_model_input = torch.cat([super_res_latents, image_upscaled], dim=1) + + noise_pred = unet( + sample=latent_model_input, + timestep=t, + ).sample + + if i + 1 == super_res_timesteps_tensor.shape[0]: + prev_timestep = None + else: + prev_timestep = super_res_timesteps_tensor[i + 1] + + # compute the previous noisy sample x_t -> x_t-1 + super_res_latents = self.super_res_scheduler.step( + noise_pred, t, super_res_latents, prev_timestep=prev_timestep, generator=generator + ).prev_sample + + if XLA_AVAILABLE: + xm.mark_step() + + image = super_res_latents + # done super res + + self.maybe_free_model_hooks() + + # post processing + image = image * 0.5 + 0.5 + image = image.clamp(0, 1) + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + + if output_type == "pil": + image = self.numpy_to_pil(image) + + if not return_dict: + return (image,) + + return ImagePipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/pipeline_unclip_image_variation.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/pipeline_unclip_image_variation.py new file mode 100644 index 0000000000000000000000000000000000000000..31710a000e0a50242eab1623b9b9b8f8d92cd908 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/pipeline_unclip_image_variation.py @@ -0,0 +1,431 @@ +# Copyright 2025 Kakao Brain and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import List, Optional, Union + +import PIL.Image +import torch +from torch.nn import functional as F +from transformers import ( + CLIPImageProcessor, + CLIPTextModelWithProjection, + CLIPTokenizer, + CLIPVisionModelWithProjection, +) + +from ...models import UNet2DConditionModel, UNet2DModel +from ...schedulers import UnCLIPScheduler +from ...utils import is_torch_xla_available, logging +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, ImagePipelineOutput +from .text_proj import UnCLIPTextProjModel + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +class UnCLIPImageVariationPipeline(DeprecatedPipelineMixin, DiffusionPipeline): + """ + Pipeline to generate image variations from an input image using UnCLIP. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + text_encoder ([`~transformers.CLIPTextModelWithProjection`]): + Frozen text-encoder. + tokenizer ([`~transformers.CLIPTokenizer`]): + A `CLIPTokenizer` to tokenize text. + feature_extractor ([`~transformers.CLIPImageProcessor`]): + Model that extracts features from generated images to be used as inputs for the `image_encoder`. + image_encoder ([`~transformers.CLIPVisionModelWithProjection`]): + Frozen CLIP image-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + text_proj ([`UnCLIPTextProjModel`]): + Utility class to prepare and combine the embeddings before they are passed to the decoder. + decoder ([`UNet2DConditionModel`]): + The decoder to invert the image embedding into an image. + super_res_first ([`UNet2DModel`]): + Super resolution UNet. Used in all but the last step of the super resolution diffusion process. + super_res_last ([`UNet2DModel`]): + Super resolution UNet. Used in the last step of the super resolution diffusion process. + decoder_scheduler ([`UnCLIPScheduler`]): + Scheduler used in the decoder denoising process (a modified [`DDPMScheduler`]). + super_res_scheduler ([`UnCLIPScheduler`]): + Scheduler used in the super resolution denoising process (a modified [`DDPMScheduler`]). + """ + + _last_supported_version = "0.33.1" + decoder: UNet2DConditionModel + text_proj: UnCLIPTextProjModel + text_encoder: CLIPTextModelWithProjection + tokenizer: CLIPTokenizer + feature_extractor: CLIPImageProcessor + image_encoder: CLIPVisionModelWithProjection + super_res_first: UNet2DModel + super_res_last: UNet2DModel + + decoder_scheduler: UnCLIPScheduler + super_res_scheduler: UnCLIPScheduler + model_cpu_offload_seq = "text_encoder->image_encoder->text_proj->decoder->super_res_first->super_res_last" + + def __init__( + self, + decoder: UNet2DConditionModel, + text_encoder: CLIPTextModelWithProjection, + tokenizer: CLIPTokenizer, + text_proj: UnCLIPTextProjModel, + feature_extractor: CLIPImageProcessor, + image_encoder: CLIPVisionModelWithProjection, + super_res_first: UNet2DModel, + super_res_last: UNet2DModel, + decoder_scheduler: UnCLIPScheduler, + super_res_scheduler: UnCLIPScheduler, + ): + super().__init__() + + self.register_modules( + decoder=decoder, + text_encoder=text_encoder, + tokenizer=tokenizer, + text_proj=text_proj, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + super_res_first=super_res_first, + super_res_last=super_res_last, + decoder_scheduler=decoder_scheduler, + super_res_scheduler=super_res_scheduler, + ) + + # Copied from diffusers.pipelines.unclip.pipeline_unclip.UnCLIPPipeline.prepare_latents + def prepare_latents(self, shape, dtype, device, generator, latents, scheduler): + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def _encode_prompt(self, prompt, device, num_images_per_prompt, do_classifier_free_guidance): + batch_size = len(prompt) if isinstance(prompt, list) else 1 + + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + text_mask = text_inputs.attention_mask.bool().to(device) + text_encoder_output = self.text_encoder(text_input_ids.to(device)) + + prompt_embeds = text_encoder_output.text_embeds + text_encoder_hidden_states = text_encoder_output.last_hidden_state + + prompt_embeds = prompt_embeds.repeat_interleave(num_images_per_prompt, dim=0) + text_encoder_hidden_states = text_encoder_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + text_mask = text_mask.repeat_interleave(num_images_per_prompt, dim=0) + + if do_classifier_free_guidance: + uncond_tokens = [""] * batch_size + + max_length = text_input_ids.shape[-1] + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + uncond_text_mask = uncond_input.attention_mask.bool().to(device) + negative_prompt_embeds_text_encoder_output = self.text_encoder(uncond_input.input_ids.to(device)) + + negative_prompt_embeds = negative_prompt_embeds_text_encoder_output.text_embeds + uncond_text_encoder_hidden_states = negative_prompt_embeds_text_encoder_output.last_hidden_state + + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + + seq_len = negative_prompt_embeds.shape[1] + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len) + + seq_len = uncond_text_encoder_hidden_states.shape[1] + uncond_text_encoder_hidden_states = uncond_text_encoder_hidden_states.repeat(1, num_images_per_prompt, 1) + uncond_text_encoder_hidden_states = uncond_text_encoder_hidden_states.view( + batch_size * num_images_per_prompt, seq_len, -1 + ) + uncond_text_mask = uncond_text_mask.repeat_interleave(num_images_per_prompt, dim=0) + + # done duplicates + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + text_encoder_hidden_states = torch.cat([uncond_text_encoder_hidden_states, text_encoder_hidden_states]) + + text_mask = torch.cat([uncond_text_mask, text_mask]) + + return prompt_embeds, text_encoder_hidden_states, text_mask + + def _encode_image(self, image, device, num_images_per_prompt, image_embeddings: Optional[torch.Tensor] = None): + dtype = next(self.image_encoder.parameters()).dtype + + if image_embeddings is None: + if not isinstance(image, torch.Tensor): + image = self.feature_extractor(images=image, return_tensors="pt").pixel_values + + image = image.to(device=device, dtype=dtype) + image_embeddings = self.image_encoder(image).image_embeds + + image_embeddings = image_embeddings.repeat_interleave(num_images_per_prompt, dim=0) + + return image_embeddings + + @torch.no_grad() + def __call__( + self, + image: Optional[Union[PIL.Image.Image, List[PIL.Image.Image], torch.Tensor]] = None, + num_images_per_prompt: int = 1, + decoder_num_inference_steps: int = 25, + super_res_num_inference_steps: int = 7, + generator: Optional[torch.Generator] = None, + decoder_latents: Optional[torch.Tensor] = None, + super_res_latents: Optional[torch.Tensor] = None, + image_embeddings: Optional[torch.Tensor] = None, + decoder_guidance_scale: float = 8.0, + output_type: Optional[str] = "pil", + return_dict: bool = True, + ): + """ + The call function to the pipeline for generation. + + Args: + image (`PIL.Image.Image` or `List[PIL.Image.Image]` or `torch.Tensor`): + `Image` or tensor representing an image batch to be used as the starting point. If you provide a + tensor, it needs to be compatible with the [`CLIPImageProcessor`] + [configuration](https://huggingface.co/fusing/karlo-image-variations-diffusers/blob/main/feature_extractor/preprocessor_config.json). + Can be left as `None` only when `image_embeddings` are passed. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + decoder_num_inference_steps (`int`, *optional*, defaults to 25): + The number of denoising steps for the decoder. More denoising steps usually lead to a higher quality + image at the expense of slower inference. + super_res_num_inference_steps (`int`, *optional*, defaults to 7): + The number of denoising steps for super resolution. More denoising steps usually lead to a higher + quality image at the expense of slower inference. + generator (`torch.Generator`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + decoder_latents (`torch.Tensor` of shape (batch size, channels, height, width), *optional*): + Pre-generated noisy latents to be used as inputs for the decoder. + super_res_latents (`torch.Tensor` of shape (batch size, channels, super res height, super res width), *optional*): + Pre-generated noisy latents to be used as inputs for the decoder. + decoder_guidance_scale (`float`, *optional*, defaults to 4.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + image_embeddings (`torch.Tensor`, *optional*): + Pre-defined image embeddings that can be derived from the image encoder. Pre-defined image embeddings + can be passed for tasks like image interpolations. `image` can be left as `None`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + + Returns: + [`~pipelines.ImagePipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.ImagePipelineOutput`] is returned, otherwise a `tuple` is + returned where the first element is a list with the generated images. + """ + if image is not None: + if isinstance(image, PIL.Image.Image): + batch_size = 1 + elif isinstance(image, list): + batch_size = len(image) + else: + batch_size = image.shape[0] + else: + batch_size = image_embeddings.shape[0] + + prompt = [""] * batch_size + + device = self._execution_device + + batch_size = batch_size * num_images_per_prompt + + do_classifier_free_guidance = decoder_guidance_scale > 1.0 + + prompt_embeds, text_encoder_hidden_states, text_mask = self._encode_prompt( + prompt, device, num_images_per_prompt, do_classifier_free_guidance + ) + + image_embeddings = self._encode_image(image, device, num_images_per_prompt, image_embeddings) + + # decoder + text_encoder_hidden_states, additive_clip_time_embeddings = self.text_proj( + image_embeddings=image_embeddings, + prompt_embeds=prompt_embeds, + text_encoder_hidden_states=text_encoder_hidden_states, + do_classifier_free_guidance=do_classifier_free_guidance, + ) + + if device.type == "mps": + # HACK: MPS: There is a panic when padding bool tensors, + # so cast to int tensor for the pad and back to bool afterwards + text_mask = text_mask.type(torch.int) + decoder_text_mask = F.pad(text_mask, (self.text_proj.clip_extra_context_tokens, 0), value=1) + decoder_text_mask = decoder_text_mask.type(torch.bool) + else: + decoder_text_mask = F.pad(text_mask, (self.text_proj.clip_extra_context_tokens, 0), value=True) + + self.decoder_scheduler.set_timesteps(decoder_num_inference_steps, device=device) + decoder_timesteps_tensor = self.decoder_scheduler.timesteps + + num_channels_latents = self.decoder.config.in_channels + height = self.decoder.config.sample_size + width = self.decoder.config.sample_size + + if decoder_latents is None: + decoder_latents = self.prepare_latents( + (batch_size, num_channels_latents, height, width), + text_encoder_hidden_states.dtype, + device, + generator, + decoder_latents, + self.decoder_scheduler, + ) + + for i, t in enumerate(self.progress_bar(decoder_timesteps_tensor)): + # expand the latents if we are doing classifier free guidance + latent_model_input = torch.cat([decoder_latents] * 2) if do_classifier_free_guidance else decoder_latents + + noise_pred = self.decoder( + sample=latent_model_input, + timestep=t, + encoder_hidden_states=text_encoder_hidden_states, + class_labels=additive_clip_time_embeddings, + attention_mask=decoder_text_mask, + ).sample + + if do_classifier_free_guidance: + noise_pred_uncond, noise_pred_text = noise_pred.chunk(2) + noise_pred_uncond, _ = noise_pred_uncond.split(latent_model_input.shape[1], dim=1) + noise_pred_text, predicted_variance = noise_pred_text.split(latent_model_input.shape[1], dim=1) + noise_pred = noise_pred_uncond + decoder_guidance_scale * (noise_pred_text - noise_pred_uncond) + noise_pred = torch.cat([noise_pred, predicted_variance], dim=1) + + if i + 1 == decoder_timesteps_tensor.shape[0]: + prev_timestep = None + else: + prev_timestep = decoder_timesteps_tensor[i + 1] + + # compute the previous noisy sample x_t -> x_t-1 + decoder_latents = self.decoder_scheduler.step( + noise_pred, t, decoder_latents, prev_timestep=prev_timestep, generator=generator + ).prev_sample + + decoder_latents = decoder_latents.clamp(-1, 1) + + image_small = decoder_latents + + # done decoder + + # super res + + self.super_res_scheduler.set_timesteps(super_res_num_inference_steps, device=device) + super_res_timesteps_tensor = self.super_res_scheduler.timesteps + + channels = self.super_res_first.config.in_channels // 2 + height = self.super_res_first.config.sample_size + width = self.super_res_first.config.sample_size + + if super_res_latents is None: + super_res_latents = self.prepare_latents( + (batch_size, channels, height, width), + image_small.dtype, + device, + generator, + super_res_latents, + self.super_res_scheduler, + ) + + if device.type == "mps": + # MPS does not support many interpolations + image_upscaled = F.interpolate(image_small, size=[height, width]) + else: + interpolate_antialias = {} + if "antialias" in inspect.signature(F.interpolate).parameters: + interpolate_antialias["antialias"] = True + + image_upscaled = F.interpolate( + image_small, size=[height, width], mode="bicubic", align_corners=False, **interpolate_antialias + ) + + for i, t in enumerate(self.progress_bar(super_res_timesteps_tensor)): + # no classifier free guidance + + if i == super_res_timesteps_tensor.shape[0] - 1: + unet = self.super_res_last + else: + unet = self.super_res_first + + latent_model_input = torch.cat([super_res_latents, image_upscaled], dim=1) + + noise_pred = unet( + sample=latent_model_input, + timestep=t, + ).sample + + if i + 1 == super_res_timesteps_tensor.shape[0]: + prev_timestep = None + else: + prev_timestep = super_res_timesteps_tensor[i + 1] + + # compute the previous noisy sample x_t -> x_t-1 + super_res_latents = self.super_res_scheduler.step( + noise_pred, t, super_res_latents, prev_timestep=prev_timestep, generator=generator + ).prev_sample + + if XLA_AVAILABLE: + xm.mark_step() + + image = super_res_latents + + # done super res + self.maybe_free_model_hooks() + + # post processing + + image = image * 0.5 + 0.5 + image = image.clamp(0, 1) + image = image.cpu().permute(0, 2, 3, 1).float().numpy() + + if output_type == "pil": + image = self.numpy_to_pil(image) + + if not return_dict: + return (image,) + + return ImagePipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/text_proj.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/text_proj.py new file mode 100644 index 0000000000000000000000000000000000000000..5e04e48ba621caa4a617e52c5b83a1573bb11975 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unclip/text_proj.py @@ -0,0 +1,86 @@ +# Copyright 2025 Kakao Brain and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import torch +from torch import nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models import ModelMixin + + +class UnCLIPTextProjModel(ModelMixin, ConfigMixin): + """ + Utility class for CLIP embeddings. Used to combine the image and text embeddings into a format usable by the + decoder. + + For more details, see the original paper: https://huggingface.co/papers/2204.06125 section 2.1 + """ + + @register_to_config + def __init__( + self, + *, + clip_extra_context_tokens: int = 4, + clip_embeddings_dim: int = 768, + time_embed_dim: int, + cross_attention_dim, + ): + super().__init__() + + self.learned_classifier_free_guidance_embeddings = nn.Parameter(torch.zeros(clip_embeddings_dim)) + + # parameters for additional clip time embeddings + self.embedding_proj = nn.Linear(clip_embeddings_dim, time_embed_dim) + self.clip_image_embeddings_project_to_time_embeddings = nn.Linear(clip_embeddings_dim, time_embed_dim) + + # parameters for encoder hidden states + self.clip_extra_context_tokens = clip_extra_context_tokens + self.clip_extra_context_tokens_proj = nn.Linear( + clip_embeddings_dim, self.clip_extra_context_tokens * cross_attention_dim + ) + self.encoder_hidden_states_proj = nn.Linear(clip_embeddings_dim, cross_attention_dim) + self.text_encoder_hidden_states_norm = nn.LayerNorm(cross_attention_dim) + + def forward(self, *, image_embeddings, prompt_embeds, text_encoder_hidden_states, do_classifier_free_guidance): + if do_classifier_free_guidance: + # Add the classifier free guidance embeddings to the image embeddings + image_embeddings_batch_size = image_embeddings.shape[0] + classifier_free_guidance_embeddings = self.learned_classifier_free_guidance_embeddings.unsqueeze(0) + classifier_free_guidance_embeddings = classifier_free_guidance_embeddings.expand( + image_embeddings_batch_size, -1 + ) + image_embeddings = torch.cat([classifier_free_guidance_embeddings, image_embeddings], dim=0) + + # The image embeddings batch size and the text embeddings batch size are equal + assert image_embeddings.shape[0] == prompt_embeds.shape[0] + + batch_size = prompt_embeds.shape[0] + + # "Specifically, we modify the architecture described in Nichol et al. (2021) by projecting and + # adding CLIP embeddings to the existing timestep embedding, ... + time_projected_prompt_embeds = self.embedding_proj(prompt_embeds) + time_projected_image_embeddings = self.clip_image_embeddings_project_to_time_embeddings(image_embeddings) + additive_clip_time_embeddings = time_projected_image_embeddings + time_projected_prompt_embeds + + # ... and by projecting CLIP embeddings into four + # extra tokens of context that are concatenated to the sequence of outputs from the GLIDE text encoder" + clip_extra_context_tokens = self.clip_extra_context_tokens_proj(image_embeddings) + clip_extra_context_tokens = clip_extra_context_tokens.reshape(batch_size, -1, self.clip_extra_context_tokens) + clip_extra_context_tokens = clip_extra_context_tokens.permute(0, 2, 1) + + text_encoder_hidden_states = self.encoder_hidden_states_proj(text_encoder_hidden_states) + text_encoder_hidden_states = self.text_encoder_hidden_states_norm(text_encoder_hidden_states) + text_encoder_hidden_states = torch.cat([clip_extra_context_tokens, text_encoder_hidden_states], dim=1) + + return text_encoder_hidden_states, additive_clip_time_embeddings diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..1ac2b09a6e570087c80bc11bf1a8102dd4970b8f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/__init__.py @@ -0,0 +1,58 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import ( + ImageTextPipelineOutput, + UniDiffuserPipeline, + ) + + _dummy_objects.update( + {"ImageTextPipelineOutput": ImageTextPipelineOutput, "UniDiffuserPipeline": UniDiffuserPipeline} + ) +else: + _import_structure["modeling_text_decoder"] = ["UniDiffuserTextDecoder"] + _import_structure["modeling_uvit"] = ["UniDiffuserModel", "UTransformer2DModel"] + _import_structure["pipeline_unidiffuser"] = ["ImageTextPipelineOutput", "UniDiffuserPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import ( + ImageTextPipelineOutput, + UniDiffuserPipeline, + ) + else: + from .modeling_text_decoder import UniDiffuserTextDecoder + from .modeling_uvit import UniDiffuserModel, UTransformer2DModel + from .pipeline_unidiffuser import ImageTextPipelineOutput, UniDiffuserPipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/modeling_text_decoder.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/modeling_text_decoder.py new file mode 100644 index 0000000000000000000000000000000000000000..0ddcbf735770aea23c08bbd3af15db9daa8cef9f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/modeling_text_decoder.py @@ -0,0 +1,296 @@ +from typing import Optional + +import numpy as np +import torch +from torch import nn +from transformers import GPT2Config, GPT2LMHeadModel +from transformers.modeling_utils import ModuleUtilsMixin + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models import ModelMixin + + +# Modified from ClipCaptionModel in https://github.com/thu-ml/unidiffuser/blob/main/libs/caption_decoder.py +class UniDiffuserTextDecoder(ModelMixin, ConfigMixin, ModuleUtilsMixin): + """ + Text decoder model for a image-text [UniDiffuser](https://huggingface.co/papers/2303.06555) model. This is used to + generate text from the UniDiffuser image-text embedding. + + Parameters: + prefix_length (`int`): + Max number of prefix tokens that will be supplied to the model. + prefix_inner_dim (`int`): + The hidden size of the incoming prefix embeddings. For UniDiffuser, this would be the hidden dim of the + CLIP text encoder. + prefix_hidden_dim (`int`, *optional*): + Hidden dim of the MLP if we encode the prefix. + vocab_size (`int`, *optional*, defaults to 50257): + Vocabulary size of the GPT-2 model. Defines the number of different tokens that can be represented by the + `inputs_ids` passed when calling [`GPT2Model`] or [`TFGPT2Model`]. + n_positions (`int`, *optional*, defaults to 1024): + The maximum sequence length that this model might ever be used with. Typically set this to something large + just in case (e.g., 512 or 1024 or 2048). + n_embd (`int`, *optional*, defaults to 768): + Dimensionality of the embeddings and hidden states. + n_layer (`int`, *optional*, defaults to 12): + Number of hidden layers in the Transformer encoder. + n_head (`int`, *optional*, defaults to 12): + Number of attention heads for each attention layer in the Transformer encoder. + n_inner (`int`, *optional*, defaults to None): + Dimensionality of the inner feed-forward layers. `None` will set it to 4 times n_embd + activation_function (`str`, *optional*, defaults to `"gelu"`): + Activation function, to be selected in the list `["relu", "silu", "gelu", "tanh", "gelu_new"]`. + resid_pdrop (`float`, *optional*, defaults to 0.1): + The dropout probability for all fully connected layers in the embeddings, encoder, and pooler. + embd_pdrop (`float`, *optional*, defaults to 0.1): + The dropout ratio for the embeddings. + attn_pdrop (`float`, *optional*, defaults to 0.1): + The dropout ratio for the attention. + layer_norm_epsilon (`float`, *optional*, defaults to 1e-5): + The epsilon to use in the layer normalization layers. + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + scale_attn_weights (`bool`, *optional*, defaults to `True`): + Scale attention weights by dividing by sqrt(hidden_size).. + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should return the last key/values attentions (not used by all models). + scale_attn_by_inverse_layer_idx (`bool`, *optional*, defaults to `False`): + Whether to additionally scale attention weights by `1 / layer_idx + 1`. + reorder_and_upcast_attn (`bool`, *optional*, defaults to `False`): + Whether to scale keys (K) prior to computing attention (dot-product) and upcast attention + dot-product/softmax to float() when training with mixed precision. + """ + + _keys_to_ignore_on_load_unexpected = [r"h\.\d+\.attn\.bias", r"h\.\d+\.attn\.masked_bias"] + + @register_to_config + def __init__( + self, + prefix_length: int, + prefix_inner_dim: int, + prefix_hidden_dim: Optional[int] = None, + vocab_size: int = 50257, # Start of GPT2 config args + n_positions: int = 1024, + n_embd: int = 768, + n_layer: int = 12, + n_head: int = 12, + n_inner: Optional[int] = None, + activation_function: str = "gelu_new", + resid_pdrop: float = 0.1, + embd_pdrop: float = 0.1, + attn_pdrop: float = 0.1, + layer_norm_epsilon: float = 1e-5, + initializer_range: float = 0.02, + scale_attn_weights: bool = True, + use_cache: bool = True, + scale_attn_by_inverse_layer_idx: bool = False, + reorder_and_upcast_attn: bool = False, + ): + super().__init__() + + self.prefix_length = prefix_length + + if prefix_inner_dim != n_embd and prefix_hidden_dim is None: + raise ValueError( + f"`prefix_hidden_dim` cannot be `None` when `prefix_inner_dim`: {prefix_hidden_dim} and" + f" `n_embd`: {n_embd} are not equal." + ) + + self.prefix_inner_dim = prefix_inner_dim + self.prefix_hidden_dim = prefix_hidden_dim + + self.encode_prefix = ( + nn.Linear(self.prefix_inner_dim, self.prefix_hidden_dim) + if self.prefix_hidden_dim is not None + else nn.Identity() + ) + self.decode_prefix = ( + nn.Linear(self.prefix_hidden_dim, n_embd) if self.prefix_hidden_dim is not None else nn.Identity() + ) + + gpt_config = GPT2Config( + vocab_size=vocab_size, + n_positions=n_positions, + n_embd=n_embd, + n_layer=n_layer, + n_head=n_head, + n_inner=n_inner, + activation_function=activation_function, + resid_pdrop=resid_pdrop, + embd_pdrop=embd_pdrop, + attn_pdrop=attn_pdrop, + layer_norm_epsilon=layer_norm_epsilon, + initializer_range=initializer_range, + scale_attn_weights=scale_attn_weights, + use_cache=use_cache, + scale_attn_by_inverse_layer_idx=scale_attn_by_inverse_layer_idx, + reorder_and_upcast_attn=reorder_and_upcast_attn, + ) + self.transformer = GPT2LMHeadModel(gpt_config) + + def forward( + self, + input_ids: torch.Tensor, + prefix_embeds: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + labels: Optional[torch.Tensor] = None, + ): + """ + Args: + input_ids (`torch.Tensor` of shape `(N, max_seq_len)`): + Text tokens to use for inference. + prefix_embeds (`torch.Tensor` of shape `(N, prefix_length, 768)`): + Prefix embedding to prepend to the embedded tokens. + attention_mask (`torch.Tensor` of shape `(N, prefix_length + max_seq_len, 768)`, *optional*): + Attention mask for the prefix embedding. + labels (`torch.Tensor`, *optional*): + Labels to use for language modeling. + """ + embedding_text = self.transformer.transformer.wte(input_ids) + hidden = self.encode_prefix(prefix_embeds) + prefix_embeds = self.decode_prefix(hidden) + embedding_cat = torch.cat((prefix_embeds, embedding_text), dim=1) + + if labels is not None: + dummy_token = self.get_dummy_token(input_ids.shape[0], input_ids.device) + labels = torch.cat((dummy_token, input_ids), dim=1) + out = self.transformer(inputs_embeds=embedding_cat, labels=labels, attention_mask=attention_mask) + if self.prefix_hidden_dim is not None: + return out, hidden + else: + return out + + def get_dummy_token(self, batch_size: int, device: torch.device) -> torch.Tensor: + return torch.zeros(batch_size, self.prefix_length, dtype=torch.int64, device=device) + + def encode(self, prefix): + return self.encode_prefix(prefix) + + @torch.no_grad() + def generate_captions(self, features, eos_token_id, device): + """ + Generate captions given text embedding features. Returns list[L]. + + Args: + features (`torch.Tensor` of shape `(B, L, D)`): + Text embedding features to generate captions from. + eos_token_id (`int`): + The token ID of the EOS token for the text decoder model. + device: + Device to perform text generation on. + + Returns: + `List[str]`: A list of strings generated from the decoder model. + """ + + features = torch.split(features, 1, dim=0) + generated_tokens = [] + generated_seq_lengths = [] + for feature in features: + feature = self.decode_prefix(feature.to(device)) # back to the clip feature + # Only support beam search for now + output_tokens, seq_lengths = self.generate_beam( + input_embeds=feature, device=device, eos_token_id=eos_token_id + ) + generated_tokens.append(output_tokens[0]) + generated_seq_lengths.append(seq_lengths[0]) + generated_tokens = torch.stack(generated_tokens) + generated_seq_lengths = torch.stack(generated_seq_lengths) + return generated_tokens, generated_seq_lengths + + @torch.no_grad() + def generate_beam( + self, + input_ids=None, + input_embeds=None, + device=None, + beam_size: int = 5, + entry_length: int = 67, + temperature: float = 1.0, + eos_token_id: Optional[int] = None, + ): + """ + Generates text using the given tokenizer and text prompt or token embedding via beam search. This + implementation is based on the beam search implementation from the [original UniDiffuser + code](https://github.com/thu-ml/unidiffuser/blob/main/libs/caption_decoder.py#L89). + + Args: + eos_token_id (`int`, *optional*): + The token ID of the EOS token for the text decoder model. + input_ids (`torch.LongTensor` of shape `(batch_size, input_ids_length)`, *optional*): + Tokenizer indices of input sequence tokens in the vocabulary. One of `input_ids` and `input_embeds` + must be supplied. + input_embeds (`torch.Tensor` of shape `(batch_size, seq_len, hidden_size)`, *optional*): + An embedded representation to directly pass to the transformer as a prefix for beam search. One of + `input_ids` and `input_embeds` must be supplied. + device: + The device to perform beam search on. + beam_size (`int`, *optional*, defaults to `5`): + The number of best states to store during beam search. + entry_length (`int`, *optional*, defaults to `67`): + The number of iterations to run beam search. + temperature (`float`, *optional*, defaults to 1.0): + The temperature to use when performing the softmax over logits from the decoding model. + + Returns: + `Tuple(torch.Tensor, torch.Tensor)`: A tuple of tensors where the first element is a tensor of generated + token sequences sorted by score in descending order, and the second element is the sequence lengths + corresponding to those sequences. + """ + # Generates text until stop_token is reached using beam search with the desired beam size. + stop_token_index = eos_token_id + tokens = None + scores = None + seq_lengths = torch.ones(beam_size, device=device, dtype=torch.int) + is_stopped = torch.zeros(beam_size, device=device, dtype=torch.bool) + + if input_embeds is not None: + generated = input_embeds + else: + generated = self.transformer.transformer.wte(input_ids) + + for i in range(entry_length): + outputs = self.transformer(inputs_embeds=generated) + logits = outputs.logits + logits = logits[:, -1, :] / (temperature if temperature > 0 else 1.0) + logits = logits.softmax(-1).log() + + if scores is None: + scores, next_tokens = logits.topk(beam_size, -1) + generated = generated.expand(beam_size, *generated.shape[1:]) + next_tokens, scores = next_tokens.permute(1, 0), scores.squeeze(0) + if tokens is None: + tokens = next_tokens + else: + tokens = tokens.expand(beam_size, *tokens.shape[1:]) + tokens = torch.cat((tokens, next_tokens), dim=1) + else: + logits[is_stopped] = -float(np.inf) + logits[is_stopped, 0] = 0 + scores_sum = scores[:, None] + logits + seq_lengths[~is_stopped] += 1 + scores_sum_average = scores_sum / seq_lengths[:, None] + scores_sum_average, next_tokens = scores_sum_average.view(-1).topk(beam_size, -1) + next_tokens_source = next_tokens // scores_sum.shape[1] + seq_lengths = seq_lengths[next_tokens_source] + next_tokens = next_tokens % scores_sum.shape[1] + next_tokens = next_tokens.unsqueeze(1) + tokens = tokens[next_tokens_source] + tokens = torch.cat((tokens, next_tokens), dim=1) + generated = generated[next_tokens_source] + scores = scores_sum_average * seq_lengths + is_stopped = is_stopped[next_tokens_source] + + next_token_embed = self.transformer.transformer.wte(next_tokens.squeeze()).view(generated.shape[0], 1, -1) + generated = torch.cat((generated, next_token_embed), dim=1) + is_stopped = is_stopped + next_tokens.eq(stop_token_index).squeeze() + if is_stopped.all(): + break + + scores = scores / seq_lengths + order = scores.argsort(descending=True) + # tokens tensors are already padded to max_seq_length + output_texts = [tokens[i] for i in order] + output_texts = torch.stack(output_texts, dim=0) + seq_lengths = torch.tensor([seq_lengths[i] for i in order], dtype=seq_lengths.dtype) + return output_texts, seq_lengths diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/modeling_uvit.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/modeling_uvit.py new file mode 100644 index 0000000000000000000000000000000000000000..2a04ec2e40309d41e4dea041c7f3398c351bc5dd --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/modeling_uvit.py @@ -0,0 +1,1197 @@ +import math +from typing import Optional, Union + +import torch +from torch import nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models import ModelMixin +from ...models.attention import FeedForward +from ...models.attention_processor import Attention +from ...models.embeddings import TimestepEmbedding, Timesteps, get_2d_sincos_pos_embed +from ...models.modeling_outputs import Transformer2DModelOutput +from ...models.normalization import AdaLayerNorm +from ...utils import logging + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +def _no_grad_trunc_normal_(tensor, mean, std, a, b): + # Cut & paste from PyTorch official master until it's in a few official releases - RW + # Method based on https://people.sc.fsu.edu/~jburkardt/presentations/truncated_normal.pdf + def norm_cdf(x): + # Computes standard normal cumulative distribution function + return (1.0 + math.erf(x / math.sqrt(2.0))) / 2.0 + + if (mean < a - 2 * std) or (mean > b + 2 * std): + logger.warning( + "mean is more than 2 std from [a, b] in nn.init.trunc_normal_. " + "The distribution of values may be incorrect." + ) + + with torch.no_grad(): + # Values are generated by using a truncated uniform distribution and + # then using the inverse CDF for the normal distribution. + # Get upper and lower cdf values + l = norm_cdf((a - mean) / std) + u = norm_cdf((b - mean) / std) + + # Uniformly fill tensor with values from [l, u], then translate to + # [2l-1, 2u-1]. + tensor.uniform_(2 * l - 1, 2 * u - 1) + + # Use inverse cdf transform for normal distribution to get truncated + # standard normal + tensor.erfinv_() + + # Transform to proper mean, std + tensor.mul_(std * math.sqrt(2.0)) + tensor.add_(mean) + + # Clamp to ensure it's in the proper range + tensor.clamp_(min=a, max=b) + return tensor + + +def trunc_normal_(tensor, mean=0.0, std=1.0, a=-2.0, b=2.0): + # type: (torch.Tensor, float, float, float, float) -> torch.Tensor + r"""Fills the input Tensor with values drawn from a truncated + normal distribution. The values are effectively drawn from the normal distribution :math:`\mathcal{N}(\text{mean}, + \text{std}^2)` with values outside :math:`[a, b]` redrawn until they are within the bounds. The method used for + generating the random values works best when :math:`a \leq \text{mean} \leq b`. + + Args: + tensor: an n-dimensional `torch.Tensor` + mean: the mean of the normal distribution + std: the standard deviation of the normal distribution + a: the minimum cutoff value + b: the maximum cutoff value + Examples: + >>> w = torch.empty(3, 5) >>> nn.init.trunc_normal_(w) + """ + return _no_grad_trunc_normal_(tensor, mean, std, a, b) + + +class PatchEmbed(nn.Module): + """2D Image to Patch Embedding""" + + def __init__( + self, + height=224, + width=224, + patch_size=16, + in_channels=3, + embed_dim=768, + layer_norm=False, + flatten=True, + bias=True, + use_pos_embed=True, + ): + super().__init__() + + num_patches = (height // patch_size) * (width // patch_size) + self.flatten = flatten + self.layer_norm = layer_norm + + self.proj = nn.Conv2d( + in_channels, embed_dim, kernel_size=(patch_size, patch_size), stride=patch_size, bias=bias + ) + if layer_norm: + self.norm = nn.LayerNorm(embed_dim, elementwise_affine=False, eps=1e-6) + else: + self.norm = None + + self.use_pos_embed = use_pos_embed + if self.use_pos_embed: + pos_embed = get_2d_sincos_pos_embed(embed_dim, int(num_patches**0.5), output_type="pt") + self.register_buffer("pos_embed", pos_embed.float().unsqueeze(0), persistent=False) + + def forward(self, latent): + latent = self.proj(latent) + if self.flatten: + latent = latent.flatten(2).transpose(1, 2) # BCHW -> BNC + if self.layer_norm: + latent = self.norm(latent) + if self.use_pos_embed: + return latent + self.pos_embed + else: + return latent + + +class SkipBlock(nn.Module): + def __init__(self, dim: int): + super().__init__() + + self.skip_linear = nn.Linear(2 * dim, dim) + + # Use torch.nn.LayerNorm for now, following the original code + self.norm = nn.LayerNorm(dim) + + def forward(self, x, skip): + x = self.skip_linear(torch.cat([x, skip], dim=-1)) + x = self.norm(x) + + return x + + +# Modified to support both pre-LayerNorm and post-LayerNorm configurations +# Don't support AdaLayerNormZero for now +# Modified from diffusers.models.attention.BasicTransformerBlock +class UTransformerBlock(nn.Module): + r""" + A modification of BasicTransformerBlock which supports pre-LayerNorm and post-LayerNorm configurations. + + Parameters: + dim (`int`): The number of channels in the input and output. + num_attention_heads (`int`): The number of heads to use for multi-head attention. + attention_head_dim (`int`): The number of channels in each head. + dropout (`float`, *optional*, defaults to 0.0): The dropout probability to use. + cross_attention_dim (`int`, *optional*): The size of the encoder_hidden_states vector for cross attention. + activation_fn (`str`, *optional*, defaults to `"geglu"`): + Activation function to be used in feed-forward. + num_embeds_ada_norm (:obj: `int`, *optional*): + The number of diffusion steps used during training. See `Transformer2DModel`. + attention_bias (:obj: `bool`, *optional*, defaults to `False`): + Configure if the attentions should contain a bias parameter. + only_cross_attention (`bool`, *optional*): + Whether to use only cross-attention layers. In this case two cross attention layers are used. + double_self_attention (`bool`, *optional*): + Whether to use two self-attention layers. In this case no cross attention layers are used. + upcast_attention (`bool`, *optional*): + Whether to upcast the query and key to float32 when performing the attention calculation. + norm_elementwise_affine (`bool`, *optional*): + Whether to use learnable per-element affine parameters during layer normalization. + norm_type (`str`, defaults to `"layer_norm"`): + The layer norm implementation to use. + pre_layer_norm (`bool`, *optional*): + Whether to perform layer normalization before the attention and feedforward operations ("pre-LayerNorm"), + as opposed to after ("post-LayerNorm"). Note that `BasicTransformerBlock` uses pre-LayerNorm, e.g. + `pre_layer_norm = True`. + final_dropout (`bool`, *optional*): + Whether to use a final Dropout layer after the feedforward network. + """ + + def __init__( + self, + dim: int, + num_attention_heads: int, + attention_head_dim: int, + dropout=0.0, + cross_attention_dim: Optional[int] = None, + activation_fn: str = "geglu", + num_embeds_ada_norm: Optional[int] = None, + attention_bias: bool = False, + only_cross_attention: bool = False, + double_self_attention: bool = False, + upcast_attention: bool = False, + norm_elementwise_affine: bool = True, + norm_type: str = "layer_norm", + pre_layer_norm: bool = True, + final_dropout: bool = False, + ): + super().__init__() + self.only_cross_attention = only_cross_attention + + self.use_ada_layer_norm = (num_embeds_ada_norm is not None) and norm_type == "ada_norm" + + self.pre_layer_norm = pre_layer_norm + + if norm_type in ("ada_norm", "ada_norm_zero") and num_embeds_ada_norm is None: + raise ValueError( + f"`norm_type` is set to {norm_type}, but `num_embeds_ada_norm` is not defined. Please make sure to" + f" define `num_embeds_ada_norm` if setting `norm_type` to {norm_type}." + ) + + # 1. Self-Attn + self.attn1 = Attention( + query_dim=dim, + heads=num_attention_heads, + dim_head=attention_head_dim, + dropout=dropout, + bias=attention_bias, + cross_attention_dim=cross_attention_dim if only_cross_attention else None, + upcast_attention=upcast_attention, + ) + + # 2. Cross-Attn + if cross_attention_dim is not None or double_self_attention: + self.attn2 = Attention( + query_dim=dim, + cross_attention_dim=cross_attention_dim if not double_self_attention else None, + heads=num_attention_heads, + dim_head=attention_head_dim, + dropout=dropout, + bias=attention_bias, + upcast_attention=upcast_attention, + ) # is self-attn if encoder_hidden_states is none + else: + self.attn2 = None + + if self.use_ada_layer_norm: + self.norm1 = AdaLayerNorm(dim, num_embeds_ada_norm) + else: + self.norm1 = nn.LayerNorm(dim, elementwise_affine=norm_elementwise_affine) + + if cross_attention_dim is not None or double_self_attention: + # We currently only use AdaLayerNormZero for self attention where there will only be one attention block. + # I.e. the number of returned modulation chunks from AdaLayerZero would not make sense if returned during + # the second cross attention block. + self.norm2 = ( + AdaLayerNorm(dim, num_embeds_ada_norm) + if self.use_ada_layer_norm + else nn.LayerNorm(dim, elementwise_affine=norm_elementwise_affine) + ) + else: + self.norm2 = None + + # 3. Feed-forward + self.norm3 = nn.LayerNorm(dim, elementwise_affine=norm_elementwise_affine) + self.ff = FeedForward(dim, dropout=dropout, activation_fn=activation_fn, final_dropout=final_dropout) + + def forward( + self, + hidden_states, + attention_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + timestep=None, + cross_attention_kwargs=None, + class_labels=None, + ): + # Pre-LayerNorm + if self.pre_layer_norm: + if self.use_ada_layer_norm: + norm_hidden_states = self.norm1(hidden_states, timestep) + else: + norm_hidden_states = self.norm1(hidden_states) + else: + norm_hidden_states = hidden_states + + # 1. Self-Attention + cross_attention_kwargs = cross_attention_kwargs if cross_attention_kwargs is not None else {} + attn_output = self.attn1( + norm_hidden_states, + encoder_hidden_states=encoder_hidden_states if self.only_cross_attention else None, + attention_mask=attention_mask, + **cross_attention_kwargs, + ) + + # Post-LayerNorm + if not self.pre_layer_norm: + if self.use_ada_layer_norm: + attn_output = self.norm1(attn_output, timestep) + else: + attn_output = self.norm1(attn_output) + + hidden_states = attn_output + hidden_states + + if self.attn2 is not None: + # Pre-LayerNorm + if self.pre_layer_norm: + norm_hidden_states = ( + self.norm2(hidden_states, timestep) if self.use_ada_layer_norm else self.norm2(hidden_states) + ) + else: + norm_hidden_states = hidden_states + # TODO (Birch-San): Here we should prepare the encoder_attention mask correctly + # prepare attention mask here + + # 2. Cross-Attention + attn_output = self.attn2( + norm_hidden_states, + encoder_hidden_states=encoder_hidden_states, + attention_mask=encoder_attention_mask, + **cross_attention_kwargs, + ) + + # Post-LayerNorm + if not self.pre_layer_norm: + attn_output = self.norm2(attn_output, timestep) if self.use_ada_layer_norm else self.norm2(attn_output) + + hidden_states = attn_output + hidden_states + + # 3. Feed-forward + # Pre-LayerNorm + if self.pre_layer_norm: + norm_hidden_states = self.norm3(hidden_states) + else: + norm_hidden_states = hidden_states + + ff_output = self.ff(norm_hidden_states) + + # Post-LayerNorm + if not self.pre_layer_norm: + ff_output = self.norm3(ff_output) + + hidden_states = ff_output + hidden_states + + return hidden_states + + +# Like UTransformerBlock except with LayerNorms on the residual backbone of the block +# Modified from diffusers.models.attention.BasicTransformerBlock +class UniDiffuserBlock(nn.Module): + r""" + A modification of BasicTransformerBlock which supports pre-LayerNorm and post-LayerNorm configurations and puts the + LayerNorms on the residual backbone of the block. This matches the transformer block in the [original UniDiffuser + implementation](https://github.com/thu-ml/unidiffuser/blob/main/libs/uvit_multi_post_ln_v1.py#L104). + + Parameters: + dim (`int`): The number of channels in the input and output. + num_attention_heads (`int`): The number of heads to use for multi-head attention. + attention_head_dim (`int`): The number of channels in each head. + dropout (`float`, *optional*, defaults to 0.0): The dropout probability to use. + cross_attention_dim (`int`, *optional*): The size of the encoder_hidden_states vector for cross attention. + activation_fn (`str`, *optional*, defaults to `"geglu"`): + Activation function to be used in feed-forward. + num_embeds_ada_norm (:obj: `int`, *optional*): + The number of diffusion steps used during training. See `Transformer2DModel`. + attention_bias (:obj: `bool`, *optional*, defaults to `False`): + Configure if the attentions should contain a bias parameter. + only_cross_attention (`bool`, *optional*): + Whether to use only cross-attention layers. In this case two cross attention layers are used. + double_self_attention (`bool`, *optional*): + Whether to use two self-attention layers. In this case no cross attention layers are used. + upcast_attention (`bool`, *optional*): + Whether to upcast the query and key to float() when performing the attention calculation. + norm_elementwise_affine (`bool`, *optional*): + Whether to use learnable per-element affine parameters during layer normalization. + norm_type (`str`, defaults to `"layer_norm"`): + The layer norm implementation to use. + pre_layer_norm (`bool`, *optional*): + Whether to perform layer normalization before the attention and feedforward operations ("pre-LayerNorm"), + as opposed to after ("post-LayerNorm"). The original UniDiffuser implementation is post-LayerNorm + (`pre_layer_norm = False`). + final_dropout (`bool`, *optional*): + Whether to use a final Dropout layer after the feedforward network. + """ + + def __init__( + self, + dim: int, + num_attention_heads: int, + attention_head_dim: int, + dropout=0.0, + cross_attention_dim: Optional[int] = None, + activation_fn: str = "geglu", + num_embeds_ada_norm: Optional[int] = None, + attention_bias: bool = False, + only_cross_attention: bool = False, + double_self_attention: bool = False, + upcast_attention: bool = False, + norm_elementwise_affine: bool = True, + norm_type: str = "layer_norm", + pre_layer_norm: bool = False, + final_dropout: bool = True, + ): + super().__init__() + self.only_cross_attention = only_cross_attention + + self.use_ada_layer_norm = (num_embeds_ada_norm is not None) and norm_type == "ada_norm" + + self.pre_layer_norm = pre_layer_norm + + if norm_type in ("ada_norm", "ada_norm_zero") and num_embeds_ada_norm is None: + raise ValueError( + f"`norm_type` is set to {norm_type}, but `num_embeds_ada_norm` is not defined. Please make sure to" + f" define `num_embeds_ada_norm` if setting `norm_type` to {norm_type}." + ) + + # 1. Self-Attn + self.attn1 = Attention( + query_dim=dim, + heads=num_attention_heads, + dim_head=attention_head_dim, + dropout=dropout, + bias=attention_bias, + cross_attention_dim=cross_attention_dim if only_cross_attention else None, + upcast_attention=upcast_attention, + ) + + # 2. Cross-Attn + if cross_attention_dim is not None or double_self_attention: + self.attn2 = Attention( + query_dim=dim, + cross_attention_dim=cross_attention_dim if not double_self_attention else None, + heads=num_attention_heads, + dim_head=attention_head_dim, + dropout=dropout, + bias=attention_bias, + upcast_attention=upcast_attention, + ) # is self-attn if encoder_hidden_states is none + else: + self.attn2 = None + + if self.use_ada_layer_norm: + self.norm1 = AdaLayerNorm(dim, num_embeds_ada_norm) + else: + self.norm1 = nn.LayerNorm(dim, elementwise_affine=norm_elementwise_affine) + + if cross_attention_dim is not None or double_self_attention: + # We currently only use AdaLayerNormZero for self attention where there will only be one attention block. + # I.e. the number of returned modulation chunks from AdaLayerZero would not make sense if returned during + # the second cross attention block. + self.norm2 = ( + AdaLayerNorm(dim, num_embeds_ada_norm) + if self.use_ada_layer_norm + else nn.LayerNorm(dim, elementwise_affine=norm_elementwise_affine) + ) + else: + self.norm2 = None + + # 3. Feed-forward + self.norm3 = nn.LayerNorm(dim, elementwise_affine=norm_elementwise_affine) + self.ff = FeedForward(dim, dropout=dropout, activation_fn=activation_fn, final_dropout=final_dropout) + + def forward( + self, + hidden_states, + attention_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + timestep=None, + cross_attention_kwargs=None, + class_labels=None, + ): + # Following the diffusers transformer block implementation, put the LayerNorm on the + # residual backbone + # Pre-LayerNorm + if self.pre_layer_norm: + if self.use_ada_layer_norm: + hidden_states = self.norm1(hidden_states, timestep) + else: + hidden_states = self.norm1(hidden_states) + + # 1. Self-Attention + cross_attention_kwargs = cross_attention_kwargs if cross_attention_kwargs is not None else {} + attn_output = self.attn1( + hidden_states, + encoder_hidden_states=encoder_hidden_states if self.only_cross_attention else None, + attention_mask=attention_mask, + **cross_attention_kwargs, + ) + + hidden_states = attn_output + hidden_states + + # Following the diffusers transformer block implementation, put the LayerNorm on the + # residual backbone + # Post-LayerNorm + if not self.pre_layer_norm: + if self.use_ada_layer_norm: + hidden_states = self.norm1(hidden_states, timestep) + else: + hidden_states = self.norm1(hidden_states) + + if self.attn2 is not None: + # Pre-LayerNorm + if self.pre_layer_norm: + hidden_states = ( + self.norm2(hidden_states, timestep) if self.use_ada_layer_norm else self.norm2(hidden_states) + ) + # TODO (Birch-San): Here we should prepare the encoder_attention mask correctly + # prepare attention mask here + + # 2. Cross-Attention + attn_output = self.attn2( + hidden_states, + encoder_hidden_states=encoder_hidden_states, + attention_mask=encoder_attention_mask, + **cross_attention_kwargs, + ) + + hidden_states = attn_output + hidden_states + + # Post-LayerNorm + if not self.pre_layer_norm: + hidden_states = ( + self.norm2(hidden_states, timestep) if self.use_ada_layer_norm else self.norm2(hidden_states) + ) + + # 3. Feed-forward + # Pre-LayerNorm + if self.pre_layer_norm: + hidden_states = self.norm3(hidden_states) + + ff_output = self.ff(hidden_states) + + hidden_states = ff_output + hidden_states + + # Post-LayerNorm + if not self.pre_layer_norm: + hidden_states = self.norm3(hidden_states) + + return hidden_states + + +# Modified from diffusers.models.transformer_2d.Transformer2DModel +# Modify the transformer block structure to be U-Net like following U-ViT +# Only supports patch-style input and torch.nn.LayerNorm currently +# https://github.com/baofff/U-ViT +class UTransformer2DModel(ModelMixin, ConfigMixin): + """ + Transformer model based on the [U-ViT](https://github.com/baofff/U-ViT) architecture for image-like data. Compared + to [`Transformer2DModel`], this model has skip connections between transformer blocks in a "U"-shaped fashion, + similar to a U-Net. Supports only continuous (actual embeddings) inputs, which are embedded via a [`PatchEmbed`] + layer and then reshaped to (b, t, d). + + Parameters: + num_attention_heads (`int`, *optional*, defaults to 16): The number of heads to use for multi-head attention. + attention_head_dim (`int`, *optional*, defaults to 88): The number of channels in each head. + in_channels (`int`, *optional*): + Pass if the input is continuous. The number of channels in the input. + out_channels (`int`, *optional*): + The number of output channels; if `None`, defaults to `in_channels`. + num_layers (`int`, *optional*, defaults to 1): The number of layers of Transformer blocks to use. + dropout (`float`, *optional*, defaults to 0.0): The dropout probability to use. + norm_num_groups (`int`, *optional*, defaults to `32`): + The number of groups to use when performing Group Normalization. + cross_attention_dim (`int`, *optional*): The number of encoder_hidden_states dimensions to use. + attention_bias (`bool`, *optional*): + Configure if the TransformerBlocks' attention should contain a bias parameter. + sample_size (`int`, *optional*): Pass if the input is discrete. The width of the latent images. + Note that this is fixed at training time as it is used for learning a number of position embeddings. See + `ImagePositionalEmbeddings`. + num_vector_embeds (`int`, *optional*): + Pass if the input is discrete. The number of classes of the vector embeddings of the latent pixels. + Includes the class for the masked latent pixel. + patch_size (`int`, *optional*, defaults to 2): + The patch size to use in the patch embedding. + activation_fn (`str`, *optional*, defaults to `"geglu"`): Activation function to be used in feed-forward. + num_embeds_ada_norm ( `int`, *optional*): Pass if at least one of the norm_layers is `AdaLayerNorm`. + The number of diffusion steps used during training. Note that this is fixed at training time as it is used + to learn a number of embeddings that are added to the hidden states. During inference, you can denoise for + up to but not more than steps than `num_embeds_ada_norm`. + use_linear_projection (int, *optional*): TODO: Not used + only_cross_attention (`bool`, *optional*): + Whether to use only cross-attention layers. In this case two cross attention layers are used in each + transformer block. + upcast_attention (`bool`, *optional*): + Whether to upcast the query and key to float() when performing the attention calculation. + norm_type (`str`, *optional*, defaults to `"layer_norm"`): + The Layer Normalization implementation to use. Defaults to `torch.nn.LayerNorm`. + block_type (`str`, *optional*, defaults to `"unidiffuser"`): + The transformer block implementation to use. If `"unidiffuser"`, has the LayerNorms on the residual + backbone of each transformer block; otherwise has them in the attention/feedforward branches (the standard + behavior in `diffusers`.) + pre_layer_norm (`bool`, *optional*): + Whether to perform layer normalization before the attention and feedforward operations ("pre-LayerNorm"), + as opposed to after ("post-LayerNorm"). The original UniDiffuser implementation is post-LayerNorm + (`pre_layer_norm = False`). + norm_elementwise_affine (`bool`, *optional*): + Whether to use learnable per-element affine parameters during layer normalization. + use_patch_pos_embed (`bool`, *optional*): + Whether to use position embeddings inside the patch embedding layer (`PatchEmbed`). + final_dropout (`bool`, *optional*): + Whether to use a final Dropout layer after the feedforward network. + """ + + @register_to_config + def __init__( + self, + num_attention_heads: int = 16, + attention_head_dim: int = 88, + in_channels: Optional[int] = None, + out_channels: Optional[int] = None, + num_layers: int = 1, + dropout: float = 0.0, + norm_num_groups: int = 32, + cross_attention_dim: Optional[int] = None, + attention_bias: bool = False, + sample_size: Optional[int] = None, + num_vector_embeds: Optional[int] = None, + patch_size: Optional[int] = 2, + activation_fn: str = "geglu", + num_embeds_ada_norm: Optional[int] = None, + use_linear_projection: bool = False, + only_cross_attention: bool = False, + upcast_attention: bool = False, + norm_type: str = "layer_norm", + block_type: str = "unidiffuser", + pre_layer_norm: bool = False, + norm_elementwise_affine: bool = True, + use_patch_pos_embed=False, + ff_final_dropout: bool = False, + ): + super().__init__() + self.use_linear_projection = use_linear_projection + self.num_attention_heads = num_attention_heads + self.attention_head_dim = attention_head_dim + inner_dim = num_attention_heads * attention_head_dim + + # 1. Input + # Only support patch input of shape (batch_size, num_channels, height, width) for now + assert in_channels is not None and patch_size is not None, "Patch input requires in_channels and patch_size." + + assert sample_size is not None, "UTransformer2DModel over patched input must provide sample_size" + + # 2. Define input layers + self.height = sample_size + self.width = sample_size + + self.patch_size = patch_size + self.pos_embed = PatchEmbed( + height=sample_size, + width=sample_size, + patch_size=patch_size, + in_channels=in_channels, + embed_dim=inner_dim, + use_pos_embed=use_patch_pos_embed, + ) + + # 3. Define transformers blocks + # Modify this to have in_blocks ("downsample" blocks, even though we don't actually downsample), a mid_block, + # and out_blocks ("upsample" blocks). Like a U-Net, there are skip connections from in_blocks to out_blocks in + # a "U"-shaped fashion (e.g. first in_block to last out_block, etc.). + # Quick hack to make the transformer block type configurable + if block_type == "unidiffuser": + block_cls = UniDiffuserBlock + else: + block_cls = UTransformerBlock + self.transformer_in_blocks = nn.ModuleList( + [ + block_cls( + inner_dim, + num_attention_heads, + attention_head_dim, + dropout=dropout, + cross_attention_dim=cross_attention_dim, + activation_fn=activation_fn, + num_embeds_ada_norm=num_embeds_ada_norm, + attention_bias=attention_bias, + only_cross_attention=only_cross_attention, + upcast_attention=upcast_attention, + norm_type=norm_type, + pre_layer_norm=pre_layer_norm, + norm_elementwise_affine=norm_elementwise_affine, + final_dropout=ff_final_dropout, + ) + for d in range(num_layers // 2) + ] + ) + + self.transformer_mid_block = block_cls( + inner_dim, + num_attention_heads, + attention_head_dim, + dropout=dropout, + cross_attention_dim=cross_attention_dim, + activation_fn=activation_fn, + num_embeds_ada_norm=num_embeds_ada_norm, + attention_bias=attention_bias, + only_cross_attention=only_cross_attention, + upcast_attention=upcast_attention, + norm_type=norm_type, + pre_layer_norm=pre_layer_norm, + norm_elementwise_affine=norm_elementwise_affine, + final_dropout=ff_final_dropout, + ) + + # For each skip connection, we use a SkipBlock (concatenation + Linear + LayerNorm) to process the inputs + # before each transformer out_block. + self.transformer_out_blocks = nn.ModuleList( + [ + nn.ModuleDict( + { + "skip": SkipBlock( + inner_dim, + ), + "block": block_cls( + inner_dim, + num_attention_heads, + attention_head_dim, + dropout=dropout, + cross_attention_dim=cross_attention_dim, + activation_fn=activation_fn, + num_embeds_ada_norm=num_embeds_ada_norm, + attention_bias=attention_bias, + only_cross_attention=only_cross_attention, + upcast_attention=upcast_attention, + norm_type=norm_type, + pre_layer_norm=pre_layer_norm, + norm_elementwise_affine=norm_elementwise_affine, + final_dropout=ff_final_dropout, + ), + } + ) + for d in range(num_layers // 2) + ] + ) + + # 4. Define output layers + self.out_channels = in_channels if out_channels is None else out_channels + + # Following the UniDiffuser U-ViT implementation, we process the transformer output with + # a LayerNorm layer with per-element affine params + self.norm_out = nn.LayerNorm(inner_dim) + + def forward( + self, + hidden_states, + encoder_hidden_states=None, + timestep=None, + class_labels=None, + cross_attention_kwargs=None, + return_dict: bool = True, + hidden_states_is_embedding: bool = False, + unpatchify: bool = True, + ): + """ + Args: + hidden_states ( When discrete, `torch.LongTensor` of shape `(batch size, num latent pixels)`. + When continuous, `torch.Tensor` of shape `(batch size, channel, height, width)`): Input hidden_states + encoder_hidden_states ( `torch.LongTensor` of shape `(batch size, encoder_hidden_states dim)`, *optional*): + Conditional embeddings for cross attention layer. If not given, cross-attention defaults to + self-attention. + timestep ( `torch.long`, *optional*): + Optional timestep to be applied as an embedding in AdaLayerNorm's. Used to indicate denoising step. + class_labels ( `torch.LongTensor` of shape `(batch size, num classes)`, *optional*): + Optional class labels to be applied as an embedding in AdaLayerZeroNorm. Used to indicate class labels + conditioning. + cross_attention_kwargs (*optional*): + Keyword arguments to supply to the cross attention layers, if used. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`models.unets.unet_2d_condition.UNet2DConditionOutput`] instead of a plain + tuple. + hidden_states_is_embedding (`bool`, *optional*, defaults to `False`): + Whether or not hidden_states is an embedding directly usable by the transformer. In this case we will + ignore input handling (e.g. continuous, vectorized, etc.) and directly feed hidden_states into the + transformer blocks. + unpatchify (`bool`, *optional*, defaults to `True`): + Whether to unpatchify the transformer output. + + Returns: + [`~models.transformer_2d.Transformer2DModelOutput`] or `tuple`: + [`~models.transformer_2d.Transformer2DModelOutput`] if `return_dict` is True, otherwise a `tuple`. When + returning a tuple, the first element is the sample tensor. + """ + # 0. Check inputs + + if not unpatchify and return_dict: + raise ValueError( + f"Cannot both define `unpatchify`: {unpatchify} and `return_dict`: {return_dict} since when" + f" `unpatchify` is {unpatchify} the returned output is of shape (batch_size, seq_len, hidden_dim)" + " rather than (batch_size, num_channels, height, width)." + ) + + # 1. Input + if not hidden_states_is_embedding: + hidden_states = self.pos_embed(hidden_states) + + # 2. Blocks + + # In ("downsample") blocks + skips = [] + for in_block in self.transformer_in_blocks: + hidden_states = in_block( + hidden_states, + encoder_hidden_states=encoder_hidden_states, + timestep=timestep, + cross_attention_kwargs=cross_attention_kwargs, + class_labels=class_labels, + ) + skips.append(hidden_states) + + # Mid block + hidden_states = self.transformer_mid_block(hidden_states) + + # Out ("upsample") blocks + for out_block in self.transformer_out_blocks: + hidden_states = out_block["skip"](hidden_states, skips.pop()) + hidden_states = out_block["block"]( + hidden_states, + encoder_hidden_states=encoder_hidden_states, + timestep=timestep, + cross_attention_kwargs=cross_attention_kwargs, + class_labels=class_labels, + ) + + # 3. Output + # Don't support AdaLayerNorm for now, so no conditioning/scale/shift logic + hidden_states = self.norm_out(hidden_states) + # hidden_states = self.proj_out(hidden_states) + + if unpatchify: + # unpatchify + height = width = int(hidden_states.shape[1] ** 0.5) + hidden_states = hidden_states.reshape( + shape=(-1, height, width, self.patch_size, self.patch_size, self.out_channels) + ) + hidden_states = torch.einsum("nhwpqc->nchpwq", hidden_states) + output = hidden_states.reshape( + shape=(-1, self.out_channels, height * self.patch_size, width * self.patch_size) + ) + else: + output = hidden_states + + if not return_dict: + return (output,) + + return Transformer2DModelOutput(sample=output) + + +class UniDiffuserModel(ModelMixin, ConfigMixin): + """ + Transformer model for a image-text [UniDiffuser](https://huggingface.co/papers/2303.06555) model. This is a + modification of [`UTransformer2DModel`] with input and output heads for the VAE-embedded latent image, the + CLIP-embedded image, and the CLIP-embedded prompt (see paper for more details). + + Parameters: + text_dim (`int`): The hidden dimension of the CLIP text model used to embed images. + clip_img_dim (`int`): The hidden dimension of the CLIP vision model used to embed prompts. + num_attention_heads (`int`, *optional*, defaults to 16): The number of heads to use for multi-head attention. + attention_head_dim (`int`, *optional*, defaults to 88): The number of channels in each head. + in_channels (`int`, *optional*): + Pass if the input is continuous. The number of channels in the input. + out_channels (`int`, *optional*): + The number of output channels; if `None`, defaults to `in_channels`. + num_layers (`int`, *optional*, defaults to 1): The number of layers of Transformer blocks to use. + dropout (`float`, *optional*, defaults to 0.0): The dropout probability to use. + norm_num_groups (`int`, *optional*, defaults to `32`): + The number of groups to use when performing Group Normalization. + cross_attention_dim (`int`, *optional*): The number of encoder_hidden_states dimensions to use. + attention_bias (`bool`, *optional*): + Configure if the TransformerBlocks' attention should contain a bias parameter. + sample_size (`int`, *optional*): Pass if the input is discrete. The width of the latent images. + Note that this is fixed at training time as it is used for learning a number of position embeddings. See + `ImagePositionalEmbeddings`. + num_vector_embeds (`int`, *optional*): + Pass if the input is discrete. The number of classes of the vector embeddings of the latent pixels. + Includes the class for the masked latent pixel. + patch_size (`int`, *optional*, defaults to 2): + The patch size to use in the patch embedding. + activation_fn (`str`, *optional*, defaults to `"geglu"`): Activation function to be used in feed-forward. + num_embeds_ada_norm ( `int`, *optional*): Pass if at least one of the norm_layers is `AdaLayerNorm`. + The number of diffusion steps used during training. Note that this is fixed at training time as it is used + to learn a number of embeddings that are added to the hidden states. During inference, you can denoise for + up to but not more than steps than `num_embeds_ada_norm`. + use_linear_projection (int, *optional*): TODO: Not used + only_cross_attention (`bool`, *optional*): + Whether to use only cross-attention layers. In this case two cross attention layers are used in each + transformer block. + upcast_attention (`bool`, *optional*): + Whether to upcast the query and key to float32 when performing the attention calculation. + norm_type (`str`, *optional*, defaults to `"layer_norm"`): + The Layer Normalization implementation to use. Defaults to `torch.nn.LayerNorm`. + block_type (`str`, *optional*, defaults to `"unidiffuser"`): + The transformer block implementation to use. If `"unidiffuser"`, has the LayerNorms on the residual + backbone of each transformer block; otherwise has them in the attention/feedforward branches (the standard + behavior in `diffusers`.) + pre_layer_norm (`bool`, *optional*): + Whether to perform layer normalization before the attention and feedforward operations ("pre-LayerNorm"), + as opposed to after ("post-LayerNorm"). The original UniDiffuser implementation is post-LayerNorm + (`pre_layer_norm = False`). + norm_elementwise_affine (`bool`, *optional*): + Whether to use learnable per-element affine parameters during layer normalization. + use_patch_pos_embed (`bool`, *optional*): + Whether to use position embeddings inside the patch embedding layer (`PatchEmbed`). + ff_final_dropout (`bool`, *optional*): + Whether to use a final Dropout layer after the feedforward network. + use_data_type_embedding (`bool`, *optional*): + Whether to use a data type embedding. This is only relevant for UniDiffuser-v1 style models; UniDiffuser-v1 + is continue-trained from UniDiffuser-v0 on non-publically-available data and accepts a `data_type` + argument, which can either be `1` to use the weights trained on non-publically-available data or `0` + otherwise. This argument is subsequently embedded by the data type embedding, if used. + """ + + @register_to_config + def __init__( + self, + text_dim: int = 768, + clip_img_dim: int = 512, + num_text_tokens: int = 77, + num_attention_heads: int = 16, + attention_head_dim: int = 88, + in_channels: Optional[int] = None, + out_channels: Optional[int] = None, + num_layers: int = 1, + dropout: float = 0.0, + norm_num_groups: int = 32, + cross_attention_dim: Optional[int] = None, + attention_bias: bool = False, + sample_size: Optional[int] = None, + num_vector_embeds: Optional[int] = None, + patch_size: Optional[int] = None, + activation_fn: str = "geglu", + num_embeds_ada_norm: Optional[int] = None, + use_linear_projection: bool = False, + only_cross_attention: bool = False, + upcast_attention: bool = False, + norm_type: str = "layer_norm", + block_type: str = "unidiffuser", + pre_layer_norm: bool = False, + use_timestep_embedding=False, + norm_elementwise_affine: bool = True, + use_patch_pos_embed=False, + ff_final_dropout: bool = True, + use_data_type_embedding: bool = False, + ): + super().__init__() + + # 0. Handle dimensions + self.inner_dim = num_attention_heads * attention_head_dim + + assert sample_size is not None, "UniDiffuserModel over patched input must provide sample_size" + self.sample_size = sample_size + self.in_channels = in_channels + self.out_channels = in_channels if out_channels is None else out_channels + + self.patch_size = patch_size + # Assume image is square... + self.num_patches = (self.sample_size // patch_size) * (self.sample_size // patch_size) + + # 1. Define input layers + # 1.1 Input layers for text and image input + # For now, only support patch input for VAE latent image input + self.vae_img_in = PatchEmbed( + height=sample_size, + width=sample_size, + patch_size=patch_size, + in_channels=in_channels, + embed_dim=self.inner_dim, + use_pos_embed=use_patch_pos_embed, + ) + self.clip_img_in = nn.Linear(clip_img_dim, self.inner_dim) + self.text_in = nn.Linear(text_dim, self.inner_dim) + + # 1.2. Timestep embeddings for t_img, t_text + self.timestep_img_proj = Timesteps( + self.inner_dim, + flip_sin_to_cos=True, + downscale_freq_shift=0, + ) + self.timestep_img_embed = ( + TimestepEmbedding( + self.inner_dim, + 4 * self.inner_dim, + out_dim=self.inner_dim, + ) + if use_timestep_embedding + else nn.Identity() + ) + + self.timestep_text_proj = Timesteps( + self.inner_dim, + flip_sin_to_cos=True, + downscale_freq_shift=0, + ) + self.timestep_text_embed = ( + TimestepEmbedding( + self.inner_dim, + 4 * self.inner_dim, + out_dim=self.inner_dim, + ) + if use_timestep_embedding + else nn.Identity() + ) + + # 1.3. Positional embedding + self.num_text_tokens = num_text_tokens + self.num_tokens = 1 + 1 + num_text_tokens + 1 + self.num_patches + self.pos_embed = nn.Parameter(torch.zeros(1, self.num_tokens, self.inner_dim)) + self.pos_embed_drop = nn.Dropout(p=dropout) + trunc_normal_(self.pos_embed, std=0.02) + + # 1.4. Handle data type token embeddings for UniDiffuser-V1, if necessary + self.use_data_type_embedding = use_data_type_embedding + if self.use_data_type_embedding: + self.data_type_token_embedding = nn.Embedding(2, self.inner_dim) + self.data_type_pos_embed_token = nn.Parameter(torch.zeros(1, 1, self.inner_dim)) + + # 2. Define transformer blocks + self.transformer = UTransformer2DModel( + num_attention_heads=num_attention_heads, + attention_head_dim=attention_head_dim, + in_channels=in_channels, + out_channels=out_channels, + num_layers=num_layers, + dropout=dropout, + norm_num_groups=norm_num_groups, + cross_attention_dim=cross_attention_dim, + attention_bias=attention_bias, + sample_size=sample_size, + num_vector_embeds=num_vector_embeds, + patch_size=patch_size, + activation_fn=activation_fn, + num_embeds_ada_norm=num_embeds_ada_norm, + use_linear_projection=use_linear_projection, + only_cross_attention=only_cross_attention, + upcast_attention=upcast_attention, + norm_type=norm_type, + block_type=block_type, + pre_layer_norm=pre_layer_norm, + norm_elementwise_affine=norm_elementwise_affine, + use_patch_pos_embed=use_patch_pos_embed, + ff_final_dropout=ff_final_dropout, + ) + + # 3. Define output layers + patch_dim = (patch_size**2) * out_channels + self.vae_img_out = nn.Linear(self.inner_dim, patch_dim) + self.clip_img_out = nn.Linear(self.inner_dim, clip_img_dim) + self.text_out = nn.Linear(self.inner_dim, text_dim) + + @torch.jit.ignore + def no_weight_decay(self): + return {"pos_embed"} + + def forward( + self, + latent_image_embeds: torch.Tensor, + image_embeds: torch.Tensor, + prompt_embeds: torch.Tensor, + timestep_img: Union[torch.Tensor, float, int], + timestep_text: Union[torch.Tensor, float, int], + data_type: Optional[Union[torch.Tensor, float, int]] = 1, + encoder_hidden_states=None, + cross_attention_kwargs=None, + ): + """ + Args: + latent_image_embeds (`torch.Tensor` of shape `(batch size, latent channels, height, width)`): + Latent image representation from the VAE encoder. + image_embeds (`torch.Tensor` of shape `(batch size, 1, clip_img_dim)`): + CLIP-embedded image representation (unsqueezed in the first dimension). + prompt_embeds (`torch.Tensor` of shape `(batch size, seq_len, text_dim)`): + CLIP-embedded text representation. + timestep_img (`torch.long` or `float` or `int`): + Current denoising step for the image. + timestep_text (`torch.long` or `float` or `int`): + Current denoising step for the text. + data_type: (`torch.int` or `float` or `int`, *optional*, defaults to `1`): + Only used in UniDiffuser-v1-style models. Can be either `1`, to use weights trained on nonpublic data, + or `0` otherwise. + encoder_hidden_states ( `torch.LongTensor` of shape `(batch size, encoder_hidden_states dim)`, *optional*): + Conditional embeddings for cross attention layer. If not given, cross-attention defaults to + self-attention. + cross_attention_kwargs (*optional*): + Keyword arguments to supply to the cross attention layers, if used. + + + Returns: + `tuple`: Returns relevant parts of the model's noise prediction: the first element of the tuple is tbe VAE + image embedding, the second element is the CLIP image embedding, and the third element is the CLIP text + embedding. + """ + batch_size = latent_image_embeds.shape[0] + + # 1. Input + # 1.1. Map inputs to shape (B, N, inner_dim) + vae_hidden_states = self.vae_img_in(latent_image_embeds) + clip_hidden_states = self.clip_img_in(image_embeds) + text_hidden_states = self.text_in(prompt_embeds) + + num_text_tokens, num_img_tokens = text_hidden_states.size(1), vae_hidden_states.size(1) + + # 1.2. Encode image timesteps to single token (B, 1, inner_dim) + if not torch.is_tensor(timestep_img): + timestep_img = torch.tensor([timestep_img], dtype=torch.long, device=vae_hidden_states.device) + + # broadcast to batch dimension in a way that's compatible with ONNX/Core ML + timestep_img = timestep_img * torch.ones(batch_size, dtype=timestep_img.dtype, device=timestep_img.device) + + timestep_img_token = self.timestep_img_proj(timestep_img) + # t_img_token does not contain any weights and will always return f32 tensors + # but time_embedding might be fp16, so we need to cast here. + timestep_img_token = timestep_img_token.to(dtype=self.dtype) + timestep_img_token = self.timestep_img_embed(timestep_img_token) + timestep_img_token = timestep_img_token.unsqueeze(dim=1) + + # 1.3. Encode text timesteps to single token (B, 1, inner_dim) + if not torch.is_tensor(timestep_text): + timestep_text = torch.tensor([timestep_text], dtype=torch.long, device=vae_hidden_states.device) + + # broadcast to batch dimension in a way that's compatible with ONNX/Core ML + timestep_text = timestep_text * torch.ones(batch_size, dtype=timestep_text.dtype, device=timestep_text.device) + + timestep_text_token = self.timestep_text_proj(timestep_text) + # t_text_token does not contain any weights and will always return f32 tensors + # but time_embedding might be fp16, so we need to cast here. + timestep_text_token = timestep_text_token.to(dtype=self.dtype) + timestep_text_token = self.timestep_text_embed(timestep_text_token) + timestep_text_token = timestep_text_token.unsqueeze(dim=1) + + # 1.4. Concatenate all of the embeddings together. + if self.use_data_type_embedding: + assert data_type is not None, "data_type must be supplied if the model uses a data type embedding" + if not torch.is_tensor(data_type): + data_type = torch.tensor([data_type], dtype=torch.int, device=vae_hidden_states.device) + + # broadcast to batch dimension in a way that's compatible with ONNX/Core ML + data_type = data_type * torch.ones(batch_size, dtype=data_type.dtype, device=data_type.device) + + data_type_token = self.data_type_token_embedding(data_type).unsqueeze(dim=1) + hidden_states = torch.cat( + [ + timestep_img_token, + timestep_text_token, + data_type_token, + text_hidden_states, + clip_hidden_states, + vae_hidden_states, + ], + dim=1, + ) + else: + hidden_states = torch.cat( + [timestep_img_token, timestep_text_token, text_hidden_states, clip_hidden_states, vae_hidden_states], + dim=1, + ) + + # 1.5. Prepare the positional embeddings and add to hidden states + # Note: I think img_vae should always have the proper shape, so there's no need to interpolate + # the position embeddings. + if self.use_data_type_embedding: + pos_embed = torch.cat( + [self.pos_embed[:, : 1 + 1, :], self.data_type_pos_embed_token, self.pos_embed[:, 1 + 1 :, :]], dim=1 + ) + else: + pos_embed = self.pos_embed + hidden_states = hidden_states + pos_embed + hidden_states = self.pos_embed_drop(hidden_states) + + # 2. Blocks + hidden_states = self.transformer( + hidden_states, + encoder_hidden_states=encoder_hidden_states, + timestep=None, + class_labels=None, + cross_attention_kwargs=cross_attention_kwargs, + return_dict=False, + hidden_states_is_embedding=True, + unpatchify=False, + )[0] + + # 3. Output + # Split out the predicted noise representation. + if self.use_data_type_embedding: + ( + t_img_token_out, + t_text_token_out, + data_type_token_out, + text_out, + img_clip_out, + img_vae_out, + ) = hidden_states.split((1, 1, 1, num_text_tokens, 1, num_img_tokens), dim=1) + else: + t_img_token_out, t_text_token_out, text_out, img_clip_out, img_vae_out = hidden_states.split( + (1, 1, num_text_tokens, 1, num_img_tokens), dim=1 + ) + + img_vae_out = self.vae_img_out(img_vae_out) + + # unpatchify + height = width = int(img_vae_out.shape[1] ** 0.5) + img_vae_out = img_vae_out.reshape( + shape=(-1, height, width, self.patch_size, self.patch_size, self.out_channels) + ) + img_vae_out = torch.einsum("nhwpqc->nchpwq", img_vae_out) + img_vae_out = img_vae_out.reshape( + shape=(-1, self.out_channels, height * self.patch_size, width * self.patch_size) + ) + + img_clip_out = self.clip_img_out(img_clip_out) + + text_out = self.text_out(text_out) + + return img_vae_out, img_clip_out, text_out diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/pipeline_unidiffuser.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/pipeline_unidiffuser.py new file mode 100644 index 0000000000000000000000000000000000000000..f9298d5b86f871b858eba938b8bba21015fa61ad --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/unidiffuser/pipeline_unidiffuser.py @@ -0,0 +1,1462 @@ +import inspect +from dataclasses import dataclass +from typing import Callable, List, Optional, Union + +import numpy as np +import PIL.Image +import torch +from transformers import ( + CLIPImageProcessor, + CLIPTextModel, + CLIPTokenizer, + CLIPVisionModelWithProjection, + GPT2Tokenizer, +) + +from ...image_processor import VaeImageProcessor +from ...loaders import StableDiffusionLoraLoaderMixin, TextualInversionLoaderMixin +from ...models import AutoencoderKL +from ...models.lora import adjust_lora_scale_text_encoder +from ...schedulers import KarrasDiffusionSchedulers +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.outputs import BaseOutput +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline +from .modeling_text_decoder import UniDiffuserTextDecoder +from .modeling_uvit import UniDiffuserModel + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +# New BaseOutput child class for joint image-text output +@dataclass +class ImageTextPipelineOutput(BaseOutput): + """ + Output class for joint image-text pipelines. + + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or NumPy array of shape `(batch_size, height, width, + num_channels)`. + text (`List[str]` or `List[List[str]]`) + List of generated text strings of length `batch_size` or a list of list of strings whose outer list has + length `batch_size`. + """ + + images: Optional[Union[List[PIL.Image.Image], np.ndarray]] + text: Optional[Union[List[str], List[List[str]]]] + + +class UniDiffuserPipeline(DeprecatedPipelineMixin, DiffusionPipeline): + r""" + Pipeline for a bimodal image-text model which supports unconditional text and image generation, text-conditioned + image generation, image-conditioned text generation, and joint image-text generation. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations. This + is part of the UniDiffuser image representation along with the CLIP vision encoding. + text_encoder ([`CLIPTextModel`]): + Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)). + image_encoder ([`CLIPVisionModel`]): + A [`~transformers.CLIPVisionModel`] to encode images as part of its image representation along with the VAE + latent representation. + image_processor ([`CLIPImageProcessor`]): + [`~transformers.CLIPImageProcessor`] to preprocess an image before CLIP encoding it with `image_encoder`. + clip_tokenizer ([`CLIPTokenizer`]): + A [`~transformers.CLIPTokenizer`] to tokenize the prompt before encoding it with `text_encoder`. + text_decoder ([`UniDiffuserTextDecoder`]): + Frozen text decoder. This is a GPT-style model which is used to generate text from the UniDiffuser + embedding. + text_tokenizer ([`GPT2Tokenizer`]): + A [`~transformers.GPT2Tokenizer`] to decode text for text generation; used along with the `text_decoder`. + unet ([`UniDiffuserModel`]): + A [U-ViT](https://github.com/baofff/U-ViT) model with UNNet-style skip connections between transformer + layers to denoise the encoded image latents. + scheduler ([`SchedulerMixin`]): + A scheduler to be used in combination with `unet` to denoise the encoded image and/or text latents. The + original UniDiffuser paper uses the [`DPMSolverMultistepScheduler`] scheduler. + """ + + _last_supported_version = "0.33.1" + # TODO: support for moving submodules for components with enable_model_cpu_offload + model_cpu_offload_seq = "text_encoder->image_encoder->unet->vae->text_decoder" + + def __init__( + self, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + image_encoder: CLIPVisionModelWithProjection, + clip_image_processor: CLIPImageProcessor, + clip_tokenizer: CLIPTokenizer, + text_decoder: UniDiffuserTextDecoder, + text_tokenizer: GPT2Tokenizer, + unet: UniDiffuserModel, + scheduler: KarrasDiffusionSchedulers, + ): + super().__init__() + + if text_encoder.config.hidden_size != text_decoder.prefix_inner_dim: + raise ValueError( + f"The text encoder hidden size and text decoder prefix inner dim must be the same, but" + f" `text_encoder.config.hidden_size`: {text_encoder.config.hidden_size} and `text_decoder.prefix_inner_dim`: {text_decoder.prefix_inner_dim}" + ) + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + image_encoder=image_encoder, + clip_image_processor=clip_image_processor, + clip_tokenizer=clip_tokenizer, + text_decoder=text_decoder, + text_tokenizer=text_tokenizer, + unet=unet, + scheduler=scheduler, + ) + + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor) + + self.num_channels_latents = vae.config.latent_channels + self.text_encoder_seq_len = text_encoder.config.max_position_embeddings + self.text_encoder_hidden_size = text_encoder.config.hidden_size + self.image_encoder_projection_dim = image_encoder.config.projection_dim + self.unet_resolution = unet.config.sample_size + + self.text_intermediate_dim = self.text_encoder_hidden_size + if self.text_decoder.prefix_hidden_dim is not None: + self.text_intermediate_dim = self.text_decoder.prefix_hidden_dim + + self.mode = None + + # TODO: handle safety checking? + self.safety_checker = None + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs + def prepare_extra_step_kwargs(self, generator, eta): + # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature + # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers. + # eta corresponds to η in DDIM paper: https://huggingface.co/papers/2010.02502 + # and should be between [0, 1] + + accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) + extra_step_kwargs = {} + if accepts_eta: + extra_step_kwargs["eta"] = eta + + # check if the scheduler accepts generator + accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys()) + if accepts_generator: + extra_step_kwargs["generator"] = generator + return extra_step_kwargs + + def _infer_mode(self, prompt, prompt_embeds, image, latents, prompt_latents, vae_latents, clip_latents): + r""" + Infer the generation task ('mode') from the inputs to `__call__`. If the mode has been manually set, the set + mode will be used. + """ + prompt_available = (prompt is not None) or (prompt_embeds is not None) + image_available = image is not None + input_available = prompt_available or image_available + + prompt_latents_available = prompt_latents is not None + vae_latents_available = vae_latents is not None + clip_latents_available = clip_latents is not None + full_latents_available = latents is not None + image_latents_available = vae_latents_available and clip_latents_available + all_indv_latents_available = prompt_latents_available and image_latents_available + + if self.mode is not None: + # Preferentially use the mode set by the user + mode = self.mode + elif prompt_available: + mode = "text2img" + elif image_available: + mode = "img2text" + else: + # Neither prompt nor image supplied, infer based on availability of latents + if full_latents_available or all_indv_latents_available: + mode = "joint" + elif prompt_latents_available: + mode = "text" + elif image_latents_available: + mode = "img" + else: + # No inputs or latents available + mode = "joint" + + # Give warnings for ambiguous cases + if self.mode is None and prompt_available and image_available: + logger.warning( + f"You have supplied both a text prompt and image to the pipeline and mode has not been set manually," + f" defaulting to mode '{mode}'." + ) + + if self.mode is None and not input_available: + if vae_latents_available != clip_latents_available: + # Exactly one of vae_latents and clip_latents is supplied + logger.warning( + f"You have supplied exactly one of `vae_latents` and `clip_latents`, whereas either both or none" + f" are expected to be supplied. Defaulting to mode '{mode}'." + ) + elif not prompt_latents_available and not vae_latents_available and not clip_latents_available: + # No inputs or latents supplied + logger.warning( + f"No inputs or latents have been supplied, and mode has not been manually set," + f" defaulting to mode '{mode}'." + ) + + return mode + + # Copied from diffusers.pipelines.pipeline_utils.StableDiffusionMixin.enable_vae_slicing + def enable_vae_slicing(self): + r""" + Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to + compute decoding in several steps. This is useful to save some memory and allow larger batch sizes. + """ + depr_message = f"Calling `enable_vae_slicing()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.enable_slicing()`." + deprecate( + "enable_vae_slicing", + "0.40.0", + depr_message, + ) + self.vae.enable_slicing() + + # Copied from diffusers.pipelines.pipeline_utils.StableDiffusionMixin.disable_vae_slicing + def disable_vae_slicing(self): + r""" + Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to + computing decoding in one step. + """ + depr_message = f"Calling `disable_vae_slicing()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.disable_slicing()`." + deprecate( + "disable_vae_slicing", + "0.40.0", + depr_message, + ) + self.vae.disable_slicing() + + # Copied from diffusers.pipelines.pipeline_utils.StableDiffusionMixin.enable_vae_tiling + def enable_vae_tiling(self): + r""" + Enable tiled VAE decoding. When this option is enabled, the VAE will split the input tensor into tiles to + compute decoding and encoding in several steps. This is useful for saving a large amount of memory and to allow + processing larger images. + """ + depr_message = f"Calling `enable_vae_tiling()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.enable_tiling()`." + deprecate( + "enable_vae_tiling", + "0.40.0", + depr_message, + ) + self.vae.enable_tiling() + + # Copied from diffusers.pipelines.pipeline_utils.StableDiffusionMixin.disable_vae_tiling + def disable_vae_tiling(self): + r""" + Disable tiled VAE decoding. If `enable_vae_tiling` was previously enabled, this method will go back to + computing decoding in one step. + """ + depr_message = f"Calling `disable_vae_tiling()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.disable_tiling()`." + deprecate( + "disable_vae_tiling", + "0.40.0", + depr_message, + ) + self.vae.disable_tiling() + + # Functions to manually set the mode + def set_text_mode(self): + r"""Manually set the generation mode to unconditional ("marginal") text generation.""" + self.mode = "text" + + def set_image_mode(self): + r"""Manually set the generation mode to unconditional ("marginal") image generation.""" + self.mode = "img" + + def set_text_to_image_mode(self): + r"""Manually set the generation mode to text-conditioned image generation.""" + self.mode = "text2img" + + def set_image_to_text_mode(self): + r"""Manually set the generation mode to image-conditioned text generation.""" + self.mode = "img2text" + + def set_joint_mode(self): + r"""Manually set the generation mode to unconditional joint image-text generation.""" + self.mode = "joint" + + def reset_mode(self): + r"""Removes a manually set mode; after calling this, the pipeline will infer the mode from inputs.""" + self.mode = None + + def _infer_batch_size( + self, + mode, + prompt, + prompt_embeds, + image, + num_images_per_prompt, + num_prompts_per_image, + latents, + prompt_latents, + vae_latents, + clip_latents, + ): + r"""Infers the batch size and multiplier depending on mode and supplied arguments to `__call__`.""" + if num_images_per_prompt is None: + num_images_per_prompt = 1 + if num_prompts_per_image is None: + num_prompts_per_image = 1 + + assert num_images_per_prompt > 0, "num_images_per_prompt must be a positive integer" + assert num_prompts_per_image > 0, "num_prompts_per_image must be a positive integer" + + if mode in ["text2img"]: + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + # Either prompt or prompt_embeds must be present for text2img. + batch_size = prompt_embeds.shape[0] + multiplier = num_images_per_prompt + elif mode in ["img2text"]: + if isinstance(image, PIL.Image.Image): + batch_size = 1 + else: + # Image must be available and type either PIL.Image.Image or torch.Tensor. + # Not currently supporting something like image_embeds. + batch_size = image.shape[0] + multiplier = num_prompts_per_image + elif mode in ["img"]: + if vae_latents is not None: + batch_size = vae_latents.shape[0] + elif clip_latents is not None: + batch_size = clip_latents.shape[0] + else: + batch_size = 1 + multiplier = num_images_per_prompt + elif mode in ["text"]: + if prompt_latents is not None: + batch_size = prompt_latents.shape[0] + else: + batch_size = 1 + multiplier = num_prompts_per_image + elif mode in ["joint"]: + if latents is not None: + batch_size = latents.shape[0] + elif prompt_latents is not None: + batch_size = prompt_latents.shape[0] + elif vae_latents is not None: + batch_size = vae_latents.shape[0] + elif clip_latents is not None: + batch_size = clip_latents.shape[0] + else: + batch_size = 1 + + if num_images_per_prompt == num_prompts_per_image: + multiplier = num_images_per_prompt + else: + multiplier = min(num_images_per_prompt, num_prompts_per_image) + logger.warning( + f"You are using mode `{mode}` and `num_images_per_prompt`: {num_images_per_prompt} and" + f" num_prompts_per_image: {num_prompts_per_image} are not equal. Using batch size equal to" + f" `min(num_images_per_prompt, num_prompts_per_image) = {batch_size}." + ) + return batch_size, multiplier + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline._encode_prompt + def _encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + **kwargs, + ): + deprecation_message = "`_encode_prompt()` is deprecated and it will be removed in a future version. Use `encode_prompt()` instead. Also, be aware that the output format changed from a concatenated tensor to a tuple." + deprecate("_encode_prompt()", "1.0.0", deprecation_message, standard_warn=False) + + prompt_embeds_tuple = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + lora_scale=lora_scale, + **kwargs, + ) + + # concatenate for backwards comp + prompt_embeds = torch.cat([prompt_embeds_tuple[1], prompt_embeds_tuple[0]]) + + return prompt_embeds + + # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt with self.tokenizer->self.clip_tokenizer + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + lora_scale: Optional[float] = None, + clip_skip: Optional[int] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + do_classifier_free_guidance (`bool`): + whether to use classifier free guidance or not + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + lora_scale (`float`, *optional*): + A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + clip_skip (`int`, *optional*): + Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that + the output of the pre-final layer will be used for computing the prompt embeddings. + """ + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, StableDiffusionLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if not USE_PEFT_BACKEND: + adjust_lora_scale_text_encoder(self.text_encoder, lora_scale) + else: + scale_lora_layers(self.text_encoder, lora_scale) + + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.clip_tokenizer) + + text_inputs = self.clip_tokenizer( + prompt, + padding="max_length", + max_length=self.clip_tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.clip_tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.clip_tokenizer.batch_decode( + untruncated_ids[:, self.clip_tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.clip_tokenizer.model_max_length} tokens: {removed_text}" + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = text_inputs.attention_mask.to(device) + else: + attention_mask = None + + if clip_skip is None: + prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask) + prompt_embeds = prompt_embeds[0] + else: + prompt_embeds = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True + ) + # Access the `hidden_states` first, that contains a tuple of + # all the hidden states from the encoder layers. Then index into + # the tuple to access the hidden states from the desired layer. + prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)] + # We also need to apply the final LayerNorm here to not mess with the + # representations. The `last_hidden_states` that we typically use for + # obtaining the final prompt representations passes through the LayerNorm + # layer. + prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds) + + if self.text_encoder is not None: + prompt_embeds_dtype = self.text_encoder.dtype + elif self.unet is not None: + prompt_embeds_dtype = self.unet.dtype + else: + prompt_embeds_dtype = prompt_embeds.dtype + + prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + bs_embed, seq_len, _ = prompt_embeds.shape + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1) + + # get unconditional embeddings for classifier free guidance + if do_classifier_free_guidance and negative_prompt_embeds is None: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + # textual inversion: process multi-vector tokens if necessary + if isinstance(self, TextualInversionLoaderMixin): + uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.clip_tokenizer) + + max_length = prompt_embeds.shape[1] + uncond_input = self.clip_tokenizer( + uncond_tokens, + padding="max_length", + max_length=max_length, + truncation=True, + return_tensors="pt", + ) + + if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask: + attention_mask = uncond_input.attention_mask.to(device) + else: + attention_mask = None + + negative_prompt_embeds = self.text_encoder( + uncond_input.input_ids.to(device), + attention_mask=attention_mask, + ) + negative_prompt_embeds = negative_prompt_embeds[0] + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + + negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device) + + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + if self.text_encoder is not None: + if isinstance(self, StableDiffusionLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + return prompt_embeds, negative_prompt_embeds + + # Modified from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_instruct_pix2pix.StableDiffusionInstructPix2PixPipeline.prepare_image_latents + # Add num_prompts_per_image argument, sample from autoencoder moment distribution + def encode_image_vae_latents( + self, + image, + batch_size, + num_prompts_per_image, + dtype, + device, + do_classifier_free_guidance, + generator=None, + ): + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + image = image.to(device=device, dtype=dtype) + + batch_size = batch_size * num_prompts_per_image + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if isinstance(generator, list): + image_latents = [ + self.vae.encode(image[i : i + 1]).latent_dist.sample(generator=generator[i]) + * self.vae.config.scaling_factor + for i in range(batch_size) + ] + image_latents = torch.cat(image_latents, dim=0) + else: + image_latents = self.vae.encode(image).latent_dist.sample(generator=generator) + # Scale image_latents by the VAE's scaling factor + image_latents = image_latents * self.vae.config.scaling_factor + + if batch_size > image_latents.shape[0] and batch_size % image_latents.shape[0] == 0: + # expand image_latents for batch_size + deprecation_message = ( + f"You have passed {batch_size} text prompts (`prompt`), but only {image_latents.shape[0]} initial" + " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" + " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" + " your script to pass as many initial images as text prompts to suppress this warning." + ) + deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) + additional_image_per_prompt = batch_size // image_latents.shape[0] + image_latents = torch.cat([image_latents] * additional_image_per_prompt, dim=0) + elif batch_size > image_latents.shape[0] and batch_size % image_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {image_latents.shape[0]} to {batch_size} text prompts." + ) + else: + image_latents = torch.cat([image_latents], dim=0) + + if do_classifier_free_guidance: + uncond_image_latents = torch.zeros_like(image_latents) + image_latents = torch.cat([image_latents, image_latents, uncond_image_latents], dim=0) + + return image_latents + + def encode_image_clip_latents( + self, + image, + batch_size, + num_prompts_per_image, + dtype, + device, + generator=None, + ): + # Map image to CLIP embedding. + if not isinstance(image, (torch.Tensor, PIL.Image.Image, list)): + raise ValueError( + f"`image` has to be of type `torch.Tensor`, `PIL.Image.Image` or list but is {type(image)}" + ) + + preprocessed_image = self.clip_image_processor.preprocess( + image, + return_tensors="pt", + ) + preprocessed_image = preprocessed_image.to(device=device, dtype=dtype) + + batch_size = batch_size * num_prompts_per_image + if isinstance(generator, list): + image_latents = [ + self.image_encoder(**preprocessed_image[i : i + 1]).image_embeds for i in range(batch_size) + ] + image_latents = torch.cat(image_latents, dim=0) + else: + image_latents = self.image_encoder(**preprocessed_image).image_embeds + + if batch_size > image_latents.shape[0] and batch_size % image_latents.shape[0] == 0: + # expand image_latents for batch_size + deprecation_message = ( + f"You have passed {batch_size} text prompts (`prompt`), but only {image_latents.shape[0]} initial" + " images (`image`). Initial images are now duplicating to match the number of text prompts. Note" + " that this behavior is deprecated and will be removed in a version 1.0.0. Please make sure to update" + " your script to pass as many initial images as text prompts to suppress this warning." + ) + deprecate("len(prompt) != len(image)", "1.0.0", deprecation_message, standard_warn=False) + additional_image_per_prompt = batch_size // image_latents.shape[0] + image_latents = torch.cat([image_latents] * additional_image_per_prompt, dim=0) + elif batch_size > image_latents.shape[0] and batch_size % image_latents.shape[0] != 0: + raise ValueError( + f"Cannot duplicate `image` of batch size {image_latents.shape[0]} to {batch_size} text prompts." + ) + else: + image_latents = torch.cat([image_latents], dim=0) + + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + return image_latents + + def prepare_text_latents( + self, batch_size, num_images_per_prompt, seq_len, hidden_size, dtype, device, generator, latents=None + ): + # Prepare latents for the CLIP embedded prompt. + shape = (batch_size * num_images_per_prompt, seq_len, hidden_size) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + # latents is assumed to have shace (B, L, D) + latents = latents.repeat(num_images_per_prompt, 1, 1) + latents = latents.to(device=device, dtype=dtype) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + # Modified from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents + # Rename prepare_latents -> prepare_image_vae_latents and add num_prompts_per_image argument. + def prepare_image_vae_latents( + self, + batch_size, + num_prompts_per_image, + num_channels_latents, + height, + width, + dtype, + device, + generator, + latents=None, + ): + shape = ( + batch_size * num_prompts_per_image, + num_channels_latents, + height // self.vae_scale_factor, + width // self.vae_scale_factor, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + # latents is assumed to have shape (B, C, H, W) + latents = latents.repeat(num_prompts_per_image, 1, 1, 1) + latents = latents.to(device=device, dtype=dtype) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def prepare_image_clip_latents( + self, batch_size, num_prompts_per_image, clip_img_dim, dtype, device, generator, latents=None + ): + # Prepare latents for the CLIP embedded image. + shape = (batch_size * num_prompts_per_image, 1, clip_img_dim) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + # latents is assumed to have shape (B, L, D) + latents = latents.repeat(num_prompts_per_image, 1, 1) + latents = latents.to(device=device, dtype=dtype) + + # scale the initial noise by the standard deviation required by the scheduler + latents = latents * self.scheduler.init_noise_sigma + return latents + + def decode_text_latents(self, text_latents, device): + output_token_list, seq_lengths = self.text_decoder.generate_captions( + text_latents, self.text_tokenizer.eos_token_id, device=device + ) + output_list = output_token_list.cpu().numpy() + generated_text = [ + self.text_tokenizer.decode(output[: int(length)], skip_special_tokens=True) + for output, length in zip(output_list, seq_lengths) + ] + return generated_text + + def _split(self, x, height, width): + r""" + Splits a flattened embedding x of shape (B, C * H * W + clip_img_dim) into two tensors of shape (B, C, H, W) + and (B, 1, clip_img_dim) + """ + batch_size = x.shape[0] + latent_height = height // self.vae_scale_factor + latent_width = width // self.vae_scale_factor + img_vae_dim = self.num_channels_latents * latent_height * latent_width + + img_vae, img_clip = x.split([img_vae_dim, self.image_encoder_projection_dim], dim=1) + + img_vae = torch.reshape(img_vae, (batch_size, self.num_channels_latents, latent_height, latent_width)) + img_clip = torch.reshape(img_clip, (batch_size, 1, self.image_encoder_projection_dim)) + return img_vae, img_clip + + def _combine(self, img_vae, img_clip): + r""" + Combines a latent image img_vae of shape (B, C, H, W) and a CLIP-embedded image img_clip of shape (B, 1, + clip_img_dim) into a single tensor of shape (B, C * H * W + clip_img_dim). + """ + img_vae = torch.reshape(img_vae, (img_vae.shape[0], -1)) + img_clip = torch.reshape(img_clip, (img_clip.shape[0], -1)) + return torch.concat([img_vae, img_clip], dim=-1) + + def _split_joint(self, x, height, width): + r""" + Splits a flattened embedding x of shape (B, C * H * W + clip_img_dim + text_seq_len * text_dim] into (img_vae, + img_clip, text) where img_vae is of shape (B, C, H, W), img_clip is of shape (B, 1, clip_img_dim), and text is + of shape (B, text_seq_len, text_dim). + """ + batch_size = x.shape[0] + latent_height = height // self.vae_scale_factor + latent_width = width // self.vae_scale_factor + img_vae_dim = self.num_channels_latents * latent_height * latent_width + text_dim = self.text_encoder_seq_len * self.text_intermediate_dim + + img_vae, img_clip, text = x.split([img_vae_dim, self.image_encoder_projection_dim, text_dim], dim=1) + + img_vae = torch.reshape(img_vae, (batch_size, self.num_channels_latents, latent_height, latent_width)) + img_clip = torch.reshape(img_clip, (batch_size, 1, self.image_encoder_projection_dim)) + text = torch.reshape(text, (batch_size, self.text_encoder_seq_len, self.text_intermediate_dim)) + return img_vae, img_clip, text + + def _combine_joint(self, img_vae, img_clip, text): + r""" + Combines a latent image img_vae of shape (B, C, H, W), a CLIP-embedded image img_clip of shape (B, L_img, + clip_img_dim), and a text embedding text of shape (B, L_text, text_dim) into a single embedding x of shape (B, + C * H * W + L_img * clip_img_dim + L_text * text_dim). + """ + img_vae = torch.reshape(img_vae, (img_vae.shape[0], -1)) + img_clip = torch.reshape(img_clip, (img_clip.shape[0], -1)) + text = torch.reshape(text, (text.shape[0], -1)) + return torch.concat([img_vae, img_clip, text], dim=-1) + + def _get_noise_pred( + self, + mode, + latents, + t, + prompt_embeds, + img_vae, + img_clip, + max_timestep, + data_type, + guidance_scale, + generator, + device, + height, + width, + ): + r""" + Gets the noise prediction using the `unet` and performs classifier-free guidance, if necessary. + """ + if mode == "joint": + # Joint text-image generation + img_vae_latents, img_clip_latents, text_latents = self._split_joint(latents, height, width) + + img_vae_out, img_clip_out, text_out = self.unet( + img_vae_latents, img_clip_latents, text_latents, timestep_img=t, timestep_text=t, data_type=data_type + ) + + x_out = self._combine_joint(img_vae_out, img_clip_out, text_out) + + if guidance_scale <= 1.0: + return x_out + + # Classifier-free guidance + img_vae_T = randn_tensor(img_vae.shape, generator=generator, device=device, dtype=img_vae.dtype) + img_clip_T = randn_tensor(img_clip.shape, generator=generator, device=device, dtype=img_clip.dtype) + text_T = randn_tensor(prompt_embeds.shape, generator=generator, device=device, dtype=prompt_embeds.dtype) + + _, _, text_out_uncond = self.unet( + img_vae_T, img_clip_T, text_latents, timestep_img=max_timestep, timestep_text=t, data_type=data_type + ) + + img_vae_out_uncond, img_clip_out_uncond, _ = self.unet( + img_vae_latents, + img_clip_latents, + text_T, + timestep_img=t, + timestep_text=max_timestep, + data_type=data_type, + ) + + x_out_uncond = self._combine_joint(img_vae_out_uncond, img_clip_out_uncond, text_out_uncond) + + return guidance_scale * x_out + (1.0 - guidance_scale) * x_out_uncond + elif mode == "text2img": + # Text-conditioned image generation + img_vae_latents, img_clip_latents = self._split(latents, height, width) + + img_vae_out, img_clip_out, text_out = self.unet( + img_vae_latents, img_clip_latents, prompt_embeds, timestep_img=t, timestep_text=0, data_type=data_type + ) + + img_out = self._combine(img_vae_out, img_clip_out) + + if guidance_scale <= 1.0: + return img_out + + # Classifier-free guidance + text_T = randn_tensor(prompt_embeds.shape, generator=generator, device=device, dtype=prompt_embeds.dtype) + + img_vae_out_uncond, img_clip_out_uncond, text_out_uncond = self.unet( + img_vae_latents, + img_clip_latents, + text_T, + timestep_img=t, + timestep_text=max_timestep, + data_type=data_type, + ) + + img_out_uncond = self._combine(img_vae_out_uncond, img_clip_out_uncond) + + return guidance_scale * img_out + (1.0 - guidance_scale) * img_out_uncond + elif mode == "img2text": + # Image-conditioned text generation + img_vae_out, img_clip_out, text_out = self.unet( + img_vae, img_clip, latents, timestep_img=0, timestep_text=t, data_type=data_type + ) + + if guidance_scale <= 1.0: + return text_out + + # Classifier-free guidance + img_vae_T = randn_tensor(img_vae.shape, generator=generator, device=device, dtype=img_vae.dtype) + img_clip_T = randn_tensor(img_clip.shape, generator=generator, device=device, dtype=img_clip.dtype) + + img_vae_out_uncond, img_clip_out_uncond, text_out_uncond = self.unet( + img_vae_T, img_clip_T, latents, timestep_img=max_timestep, timestep_text=t, data_type=data_type + ) + + return guidance_scale * text_out + (1.0 - guidance_scale) * text_out_uncond + elif mode == "text": + # Unconditional ("marginal") text generation (no CFG) + img_vae_out, img_clip_out, text_out = self.unet( + img_vae, img_clip, latents, timestep_img=max_timestep, timestep_text=t, data_type=data_type + ) + + return text_out + elif mode == "img": + # Unconditional ("marginal") image generation (no CFG) + img_vae_latents, img_clip_latents = self._split(latents, height, width) + + img_vae_out, img_clip_out, text_out = self.unet( + img_vae_latents, + img_clip_latents, + prompt_embeds, + timestep_img=t, + timestep_text=max_timestep, + data_type=data_type, + ) + + img_out = self._combine(img_vae_out, img_clip_out) + return img_out + + def check_latents_shape(self, latents_name, latents, expected_shape): + latents_shape = latents.shape + expected_num_dims = len(expected_shape) + 1 # expected dimensions plus the batch dimension + expected_shape_str = ", ".join(str(dim) for dim in expected_shape) + if len(latents_shape) != expected_num_dims: + raise ValueError( + f"`{latents_name}` should have shape (batch_size, {expected_shape_str}), but the current shape" + f" {latents_shape} has {len(latents_shape)} dimensions." + ) + for i in range(1, expected_num_dims): + if latents_shape[i] != expected_shape[i - 1]: + raise ValueError( + f"`{latents_name}` should have shape (batch_size, {expected_shape_str}), but the current shape" + f" {latents_shape} has {latents_shape[i]} != {expected_shape[i - 1]} at dimension {i}." + ) + + def check_inputs( + self, + mode, + prompt, + image, + height, + width, + callback_steps, + negative_prompt=None, + prompt_embeds=None, + negative_prompt_embeds=None, + latents=None, + prompt_latents=None, + vae_latents=None, + clip_latents=None, + ): + # Check inputs before running the generative process. + if height % self.vae_scale_factor != 0 or width % self.vae_scale_factor != 0: + raise ValueError( + f"`height` and `width` have to be divisible by {self.vae_scale_factor} but are {height} and {width}." + ) + + if (callback_steps is None) or ( + callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) + ): + raise ValueError( + f"`callback_steps` has to be a positive integer but is {callback_steps} of type" + f" {type(callback_steps)}." + ) + + if mode == "text2img": + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if mode == "img2text": + if image is None: + raise ValueError("`img2text` mode requires an image to be provided.") + + # Check provided latents + latent_height = height // self.vae_scale_factor + latent_width = width // self.vae_scale_factor + full_latents_available = latents is not None + prompt_latents_available = prompt_latents is not None + vae_latents_available = vae_latents is not None + clip_latents_available = clip_latents is not None + + if full_latents_available: + individual_latents_available = ( + prompt_latents is not None or vae_latents is not None or clip_latents is not None + ) + if individual_latents_available: + logger.warning( + "You have supplied both `latents` and at least one of `prompt_latents`, `vae_latents`, and" + " `clip_latents`. The value of `latents` will override the value of any individually supplied latents." + ) + # Check shape of full latents + img_vae_dim = self.num_channels_latents * latent_height * latent_width + text_dim = self.text_encoder_seq_len * self.text_encoder_hidden_size + latents_dim = img_vae_dim + self.image_encoder_projection_dim + text_dim + latents_expected_shape = (latents_dim,) + self.check_latents_shape("latents", latents, latents_expected_shape) + + # Check individual latent shapes, if present + if prompt_latents_available: + prompt_latents_expected_shape = (self.text_encoder_seq_len, self.text_encoder_hidden_size) + self.check_latents_shape("prompt_latents", prompt_latents, prompt_latents_expected_shape) + + if vae_latents_available: + vae_latents_expected_shape = (self.num_channels_latents, latent_height, latent_width) + self.check_latents_shape("vae_latents", vae_latents, vae_latents_expected_shape) + + if clip_latents_available: + clip_latents_expected_shape = (1, self.image_encoder_projection_dim) + self.check_latents_shape("clip_latents", clip_latents, clip_latents_expected_shape) + + if mode in ["text2img", "img"] and vae_latents_available and clip_latents_available: + if vae_latents.shape[0] != clip_latents.shape[0]: + raise ValueError( + f"Both `vae_latents` and `clip_latents` are supplied, but their batch dimensions are not equal:" + f" {vae_latents.shape[0]} != {clip_latents.shape[0]}." + ) + + if mode == "joint" and prompt_latents_available and vae_latents_available and clip_latents_available: + if prompt_latents.shape[0] != vae_latents.shape[0] or prompt_latents.shape[0] != clip_latents.shape[0]: + raise ValueError( + f"All of `prompt_latents`, `vae_latents`, and `clip_latents` are supplied, but their batch" + f" dimensions are not equal: {prompt_latents.shape[0]} != {vae_latents.shape[0]}" + f" != {clip_latents.shape[0]}." + ) + + @torch.no_grad() + def __call__( + self, + prompt: Optional[Union[str, List[str]]] = None, + image: Optional[Union[torch.Tensor, PIL.Image.Image]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + data_type: Optional[int] = 1, + num_inference_steps: int = 50, + guidance_scale: float = 8.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + num_prompts_per_image: Optional[int] = 1, + eta: float = 0.0, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_latents: Optional[torch.Tensor] = None, + vae_latents: Optional[torch.Tensor] = None, + clip_latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback: Optional[Callable[[int, int, torch.Tensor], None]] = None, + callback_steps: int = 1, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`. + Required for text-conditioned image generation (`text2img`) mode. + image (`torch.Tensor` or `PIL.Image.Image`, *optional*): + `Image` or tensor representing an image batch. Required for image-conditioned text generation + (`img2text`) mode. + height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`): + The width in pixels of the generated image. + data_type (`int`, *optional*, defaults to 1): + The data type (either 0 or 1). Only used if you are loading a checkpoint which supports a data type + embedding; this is added for compatibility with the + [UniDiffuser-v1](https://huggingface.co/thu-ml/unidiffuser-v1) checkpoint. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, *optional*, defaults to 8.0): + A higher guidance scale value encourages the model to generate images closely linked to the text + `prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide what to not include in image generation. If not defined, you need to + pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`). Used in + text-conditioned image generation (`text2img`) mode. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. Used in `text2img` (text-conditioned image generation) and + `img` mode. If the mode is joint and both `num_images_per_prompt` and `num_prompts_per_image` are + supplied, `min(num_images_per_prompt, num_prompts_per_image)` samples are generated. + num_prompts_per_image (`int`, *optional*, defaults to 1): + The number of prompts to generate per image. Used in `img2text` (image-conditioned text generation) and + `text` mode. If the mode is joint and both `num_images_per_prompt` and `num_prompts_per_image` are + supplied, `min(num_images_per_prompt, num_prompts_per_image)` samples are generated. + eta (`float`, *optional*, defaults to 0.0): + Corresponds to parameter eta (η) from the [DDIM](https://huggingface.co/papers/2010.02502) paper. Only + applies to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for joint + image-text generation. Can be used to tweak the same generation with different prompts. If not + provided, a latents tensor is generated by sampling using the supplied random `generator`. This assumes + a full set of VAE, CLIP, and text latents, if supplied, overrides the value of `prompt_latents`, + `vae_latents`, and `clip_latents`. + prompt_latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for text + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + vae_latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + clip_latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. Used in text-conditioned + image generation (`text2img`) mode. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If + not provided, `negative_prompt_embeds` are be generated from the `negative_prompt` input argument. Used + in text-conditioned image generation (`text2img`) mode. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImageTextPipelineOutput`] instead of a plain tuple. + callback (`Callable`, *optional*): + A function that calls every `callback_steps` steps during inference. The function is called with the + following arguments: `callback(step: int, timestep: int, latents: torch.Tensor)`. + callback_steps (`int`, *optional*, defaults to 1): + The frequency at which the `callback` function is called. If not specified, the callback is called at + every step. + + Returns: + [`~pipelines.unidiffuser.ImageTextPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`~pipelines.unidiffuser.ImageTextPipelineOutput`] is returned, otherwise a + `tuple` is returned where the first element is a list with the generated images and the second element + is a list of generated texts. + """ + + # 0. Default height and width to unet + height = height or self.unet_resolution * self.vae_scale_factor + width = width or self.unet_resolution * self.vae_scale_factor + + # 1. Check inputs + # Recalculate mode for each call to the pipeline. + mode = self._infer_mode(prompt, prompt_embeds, image, latents, prompt_latents, vae_latents, clip_latents) + self.check_inputs( + mode, + prompt, + image, + height, + width, + callback_steps, + negative_prompt, + prompt_embeds, + negative_prompt_embeds, + latents, + prompt_latents, + vae_latents, + clip_latents, + ) + + # 2. Define call parameters + batch_size, multiplier = self._infer_batch_size( + mode, + prompt, + prompt_embeds, + image, + num_images_per_prompt, + num_prompts_per_image, + latents, + prompt_latents, + vae_latents, + clip_latents, + ) + device = self._execution_device + reduce_text_emb_dim = self.text_intermediate_dim < self.text_encoder_hidden_size or self.mode != "text2img" + + # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2) + # of the Imagen paper: https://huggingface.co/papers/2205.11487 . `guidance_scale = 1` + # corresponds to doing no classifier free guidance. + # Note that this differs from the formulation in the unidiffusers paper! + do_classifier_free_guidance = guidance_scale > 1.0 + + # check if scheduler is in sigmas space + # scheduler_is_in_sigma_space = hasattr(self.scheduler, "sigmas") + + # 3. Encode input prompt, if available; otherwise prepare text latents + if latents is not None: + # Overwrite individual latents + vae_latents, clip_latents, prompt_latents = self._split_joint(latents, height, width) + + if mode in ["text2img"]: + # 3.1. Encode input prompt, if available + assert prompt is not None or prompt_embeds is not None + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=multiplier, + do_classifier_free_guidance=do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + # if do_classifier_free_guidance: + # prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds]) + else: + # 3.2. Prepare text latent variables, if input not available + prompt_embeds = self.prepare_text_latents( + batch_size=batch_size, + num_images_per_prompt=multiplier, + seq_len=self.text_encoder_seq_len, + hidden_size=self.text_encoder_hidden_size, + dtype=self.text_encoder.dtype, # Should work with both full precision and mixed precision + device=device, + generator=generator, + latents=prompt_latents, + ) + + if reduce_text_emb_dim: + prompt_embeds = self.text_decoder.encode(prompt_embeds) + + # 4. Encode image, if available; otherwise prepare image latents + if mode in ["img2text"]: + # 4.1. Encode images, if available + assert image is not None, "`img2text` requires a conditioning image" + # Encode image using VAE + image_vae = self.image_processor.preprocess(image) + height, width = image_vae.shape[-2:] + image_vae_latents = self.encode_image_vae_latents( + image=image_vae, + batch_size=batch_size, + num_prompts_per_image=multiplier, + dtype=prompt_embeds.dtype, + device=device, + do_classifier_free_guidance=False, # Copied from InstructPix2Pix, don't use their version of CFG + generator=generator, + ) + + # Encode image using CLIP + image_clip_latents = self.encode_image_clip_latents( + image=image, + batch_size=batch_size, + num_prompts_per_image=multiplier, + dtype=prompt_embeds.dtype, + device=device, + generator=generator, + ) + # (batch_size, clip_hidden_size) => (batch_size, 1, clip_hidden_size) + image_clip_latents = image_clip_latents.unsqueeze(1) + else: + # 4.2. Prepare image latent variables, if input not available + # Prepare image VAE latents in latent space + image_vae_latents = self.prepare_image_vae_latents( + batch_size=batch_size, + num_prompts_per_image=multiplier, + num_channels_latents=self.num_channels_latents, + height=height, + width=width, + dtype=prompt_embeds.dtype, + device=device, + generator=generator, + latents=vae_latents, + ) + + # Prepare image CLIP latents + image_clip_latents = self.prepare_image_clip_latents( + batch_size=batch_size, + num_prompts_per_image=multiplier, + clip_img_dim=self.image_encoder_projection_dim, + dtype=prompt_embeds.dtype, + device=device, + generator=generator, + latents=clip_latents, + ) + + # 5. Set timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + # max_timestep = timesteps[0] + max_timestep = self.scheduler.config.num_train_timesteps + + # 6. Prepare latent variables + if mode == "joint": + latents = self._combine_joint(image_vae_latents, image_clip_latents, prompt_embeds) + elif mode in ["text2img", "img"]: + latents = self._combine(image_vae_latents, image_clip_latents) + elif mode in ["img2text", "text"]: + latents = prompt_embeds + + # 7. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline + extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta) + + logger.debug(f"Scheduler extra step kwargs: {extra_step_kwargs}") + + # 8. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + # predict the noise residual + # Also applies classifier-free guidance as described in the UniDiffuser paper + noise_pred = self._get_noise_pred( + mode, + latents, + t, + prompt_embeds, + image_vae_latents, + image_clip_latents, + max_timestep, + data_type, + guidance_scale, + generator, + device, + height, + width, + ) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # 9. Post-processing + image = None + text = None + if mode == "joint": + image_vae_latents, image_clip_latents, text_latents = self._split_joint(latents, height, width) + + if not output_type == "latent": + # Map latent VAE image back to pixel space + image = self.vae.decode(image_vae_latents / self.vae.config.scaling_factor, return_dict=False)[0] + else: + image = image_vae_latents + + text = self.decode_text_latents(text_latents, device) + elif mode in ["text2img", "img"]: + image_vae_latents, image_clip_latents = self._split(latents, height, width) + + if not output_type == "latent": + # Map latent VAE image back to pixel space + image = self.vae.decode(image_vae_latents / self.vae.config.scaling_factor, return_dict=False)[0] + else: + image = image_vae_latents + elif mode in ["img2text", "text"]: + text_latents = latents + text = self.decode_text_latents(text_latents, device) + + self.maybe_free_model_hooks() + + # 10. Postprocess the image, if necessary + if image is not None: + do_denormalize = [True] * image.shape[0] + image = self.image_processor.postprocess(image, output_type=output_type, do_denormalize=do_denormalize) + + # Offload last model to CPU + if hasattr(self, "final_offload_hook") and self.final_offload_hook is not None: + self.final_offload_hook.offload() + + if not return_dict: + return (image, text) + + return ImageTextPipelineOutput(images=image, text=text) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ab765a1bbad9ae0b8c7f2e7dec5019e3a5e4ea01 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/__init__.py @@ -0,0 +1,52 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_visualcloze_combined"] = ["VisualClozePipeline"] + _import_structure["pipeline_visualcloze_generation"] = ["VisualClozeGenerationPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_visualcloze_combined import VisualClozePipeline + from .pipeline_visualcloze_generation import VisualClozeGenerationPipeline + + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/pipeline_visualcloze_combined.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/pipeline_visualcloze_combined.py new file mode 100644 index 0000000000000000000000000000000000000000..91a54e1ae82f52986924a2394fc80d1417c9c972 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/pipeline_visualcloze_combined.py @@ -0,0 +1,440 @@ +# Copyright 2025 VisualCloze team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Any, Callable, Dict, List, Optional, Union + +import torch +from PIL import Image +from transformers import CLIPTextModel, CLIPTokenizer, T5EncoderModel, T5TokenizerFast + +from ...loaders import FluxLoraLoaderMixin, FromSingleFileMixin, TextualInversionLoaderMixin +from ...models.autoencoders import AutoencoderKL +from ...models.transformers import FluxTransformer2DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import is_torch_xla_available, logging, replace_example_docstring +from ..flux.pipeline_flux_fill import FluxFillPipeline as VisualClozeUpsamplingPipeline +from ..flux.pipeline_output import FluxPipelineOutput +from ..pipeline_utils import DiffusionPipeline +from .pipeline_visualcloze_generation import VisualClozeGenerationPipeline + + +if is_torch_xla_available(): + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```python + >>> import torch + >>> from diffusers import VisualClozePipeline + >>> from diffusers.utils import load_image + + >>> image_paths = [ + ... # in-context examples + ... [ + ... load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/visualcloze/visualcloze_mask2image_incontext-example-1_mask.jpg" + ... ), + ... load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/visualcloze/visualcloze_mask2image_incontext-example-1_image.jpg" + ... ), + ... ], + ... # query with the target image + ... [ + ... load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/visualcloze/visualcloze_mask2image_query_mask.jpg" + ... ), + ... None, # No image needed for the target image + ... ], + ... ] + >>> task_prompt = "In each row, a logical task is demonstrated to achieve [IMAGE2] an aesthetically pleasing photograph based on [IMAGE1] sam 2-generated masks with rich color coding." + >>> content_prompt = "Majestic photo of a golden eagle perched on a rocky outcrop in a mountainous landscape. The eagle is positioned in the right foreground, facing left, with its sharp beak and keen eyes prominently visible. Its plumage is a mix of dark brown and golden hues, with intricate feather details. The background features a soft-focus view of snow-capped mountains under a cloudy sky, creating a serene and grandiose atmosphere. The foreground includes rugged rocks and patches of green moss. Photorealistic, medium depth of field, soft natural lighting, cool color palette, high contrast, sharp focus on the eagle, blurred background, tranquil, majestic, wildlife photography." + >>> pipe = VisualClozePipeline.from_pretrained( + ... "VisualCloze/VisualClozePipeline-384", resolution=384, torch_dtype=torch.bfloat16 + ... ) + >>> pipe.to("cuda") + + >>> image = pipe( + ... task_prompt=task_prompt, + ... content_prompt=content_prompt, + ... image=image_paths, + ... upsampling_width=1344, + ... upsampling_height=768, + ... upsampling_strength=0.4, + ... guidance_scale=30, + ... num_inference_steps=30, + ... max_sequence_length=512, + ... generator=torch.Generator("cpu").manual_seed(0), + ... ).images[0][0] + >>> image.save("visualcloze.png") + ``` +""" + + +class VisualClozePipeline( + DiffusionPipeline, + FluxLoraLoaderMixin, + FromSingleFileMixin, + TextualInversionLoaderMixin, +): + r""" + The VisualCloze pipeline for image generation with visual context. Reference: + https://github.com/lzyhha/VisualCloze/tree/main. This pipeline is designed to generate images based on visual + in-context examples. + + Args: + transformer ([`FluxTransformer2DModel`]): + Conditional Transformer (MMDiT) architecture to denoise the encoded image latents. + scheduler ([`FlowMatchEulerDiscreteScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + text_encoder_2 ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/t5-v1_1-xxl](https://huggingface.co/google/t5-v1_1-xxl) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`T5TokenizerFast`): + Second Tokenizer of class + [T5TokenizerFast](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5TokenizerFast). + resolution (`int`, *optional*, defaults to 384): + The resolution of each image when concatenating images from the query and in-context examples. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->transformer->vae" + _optional_components = [] + _callback_tensor_inputs = ["latents", "prompt_embeds"] + + def __init__( + self, + scheduler: FlowMatchEulerDiscreteScheduler, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + text_encoder_2: T5EncoderModel, + tokenizer_2: T5TokenizerFast, + transformer: FluxTransformer2DModel, + resolution: int = 384, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + transformer=transformer, + scheduler=scheduler, + ) + + self.generation_pipe = VisualClozeGenerationPipeline( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + transformer=transformer, + scheduler=scheduler, + resolution=resolution, + ) + self.upsampling_pipe = VisualClozeUpsamplingPipeline( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + transformer=transformer, + scheduler=scheduler, + ) + + def check_inputs( + self, + image, + task_prompt, + content_prompt, + upsampling_height, + upsampling_width, + strength, + prompt_embeds=None, + pooled_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + max_sequence_length=None, + ): + if strength < 0 or strength > 1: + raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") + + if upsampling_height is not None and upsampling_height % (self.vae_scale_factor * 2) != 0: + logger.warning( + f"`upsampling_height`has to be divisible by {self.vae_scale_factor * 2} but are {upsampling_height}. Dimensions will be resized accordingly" + ) + if upsampling_width is not None and upsampling_width % (self.vae_scale_factor * 2) != 0: + logger.warning( + f"`upsampling_width` have to be divisible by {self.vae_scale_factor * 2} but are {upsampling_width}. Dimensions will be resized accordingly" + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + # Validate prompt inputs + if (task_prompt is not None or content_prompt is not None) and prompt_embeds is not None: + raise ValueError("Cannot provide both text `task_prompt` + `content_prompt` and `prompt_embeds`. ") + + if task_prompt is None and content_prompt is None and prompt_embeds is None: + raise ValueError("Must provide either `task_prompt` + `content_prompt` or pre-computed `prompt_embeds`. ") + + # Validate prompt types and consistency + if task_prompt is None: + raise ValueError("`task_prompt` is missing.") + + if task_prompt is not None and not isinstance(task_prompt, (str, list)): + raise ValueError(f"`task_prompt` must be str or list, got {type(task_prompt)}") + + if content_prompt is not None and not isinstance(content_prompt, (str, list)): + raise ValueError(f"`content_prompt` must be str or list, got {type(content_prompt)}") + + if isinstance(task_prompt, list) or isinstance(content_prompt, list): + if not isinstance(task_prompt, list) or not isinstance(content_prompt, list): + raise ValueError( + f"`task_prompt` and `content_prompt` must both be lists, or both be of type str or None, " + f"got {type(task_prompt)} and {type(content_prompt)}" + ) + if len(content_prompt) != len(task_prompt): + raise ValueError("`task_prompt` and `content_prompt` must have the same length whe they are lists.") + + for sample in image: + if not isinstance(sample, list) or not isinstance(sample[0], list): + raise ValueError("Each sample in the batch must have a 2D list of images.") + if len({len(row) for row in sample}) != 1: + raise ValueError("Each in-context example and query should contain the same number of images.") + if not any(img is None for img in sample[-1]): + raise ValueError("There are no targets in the query, which should be represented as None.") + for row in sample[:-1]: + if any(img is None for img in row): + raise ValueError("Images are missing in in-context examples.") + + # Validate embeddings + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + # Validate sequence length + if max_sequence_length is not None and max_sequence_length > 512: + raise ValueError(f"max_sequence_length cannot exceed 512, got {max_sequence_length}") + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + task_prompt: Union[str, List[str]] = None, + content_prompt: Union[str, List[str]] = None, + image: Optional[torch.FloatTensor] = None, + upsampling_height: Optional[int] = None, + upsampling_width: Optional[int] = None, + num_inference_steps: int = 50, + sigmas: Optional[List[float]] = None, + guidance_scale: float = 30.0, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.FloatTensor] = None, + prompt_embeds: Optional[torch.FloatTensor] = None, + pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + joint_attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + upsampling_strength: float = 1.0, + ): + r""" + Function invoked when calling the VisualCloze pipeline for generation. + + Args: + task_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to define the task intention. + content_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to define the content or caption of the target image to be generated. + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image`, numpy array or tensor representing an image batch to be used as the starting point. For both + numpy array and pytorch tensor, the expected value range is between `[0, 1]` If it's a tensor or a list + or tensors, the expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a numpy array or a + list of arrays, the expected shape should be `(B, H, W, C)` or `(H, W, C)`. + upsampling_height (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The height in pixels of the generated image (i.e., output image) after upsampling via SDEdit. By + default, the image is upsampled by a factor of three, and the base resolution is determined by the + resolution parameter of the pipeline. When only one of `upsampling_height` or `upsampling_width` is + specified, the other will be automatically set based on the aspect ratio. + upsampling_width (`int`, *optional*, defaults to self.unet.config.sample_size * self.vae_scale_factor): + The width in pixels of the generated image (i.e., output image) after upsampling via SDEdit. By + default, the image is upsampled by a factor of three, and the base resolution is determined by the + resolution parameter of the pipeline. When only one of `upsampling_height` or `upsampling_width` is + specified, the other will be automatically set based on the aspect ratio. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 30.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.FloatTensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.flux.FluxPipelineOutput`] instead of a plain tuple. + joint_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int` defaults to 512): Maximum sequence length to use with the `prompt`. + upsampling_strength (`float`, *optional*, defaults to 1.0): + Indicates extent to transform the reference `image` when upsampling the results. Must be between 0 and + 1. The generated image is used as a starting point and more noise is added the higher the + `upsampling_strength`. The number of denoising steps depends on the amount of noise initially added. + When `upsampling_strength` is 1, added noise is maximum and the denoising process runs for the full + number of iterations specified in `num_inference_steps`. A value of 0 skips the upsampling step and + output the results at the resolution of `self.resolution`. + + Examples: + + Returns: + [`~pipelines.flux.FluxPipelineOutput`] or `tuple`: [`~pipelines.flux.FluxPipelineOutput`] if `return_dict` + is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated + images. + """ + + generation_output = self.generation_pipe( + task_prompt=task_prompt, + content_prompt=content_prompt, + image=image, + num_inference_steps=num_inference_steps, + sigmas=sigmas, + guidance_scale=guidance_scale, + num_images_per_prompt=num_images_per_prompt, + generator=generator, + latents=latents, + prompt_embeds=prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + joint_attention_kwargs=joint_attention_kwargs, + callback_on_step_end=callback_on_step_end, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + max_sequence_length=max_sequence_length, + output_type=output_type if upsampling_strength == 0 else "pil", + ) + if upsampling_strength == 0: + if not return_dict: + return (generation_output,) + + return FluxPipelineOutput(images=generation_output) + + # Upsampling the generated images + # 1. Prepare the input images and prompts + if not isinstance(content_prompt, (list)): + content_prompt = [content_prompt] + n_target_per_sample = [] + upsampling_image = [] + upsampling_mask = [] + upsampling_prompt = [] + upsampling_generator = generator if isinstance(generator, (torch.Generator,)) else [] + for i in range(len(generation_output.images)): + n_target_per_sample.append(len(generation_output.images[i])) + for image in generation_output.images[i]: + upsampling_image.append(image) + upsampling_mask.append(Image.new("RGB", image.size, (255, 255, 255))) + upsampling_prompt.append( + content_prompt[i % len(content_prompt)] if content_prompt[i % len(content_prompt)] else "" + ) + if not isinstance(generator, (torch.Generator,)): + upsampling_generator.append(generator[i % len(content_prompt)]) + + # 2. Apply the denosing loop + upsampling_output = self.upsampling_pipe( + prompt=upsampling_prompt, + image=upsampling_image, + mask_image=upsampling_mask, + height=upsampling_height, + width=upsampling_width, + strength=upsampling_strength, + num_inference_steps=num_inference_steps, + sigmas=sigmas, + guidance_scale=guidance_scale, + generator=upsampling_generator, + output_type=output_type, + joint_attention_kwargs=joint_attention_kwargs, + callback_on_step_end=callback_on_step_end, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + max_sequence_length=max_sequence_length, + ) + image = upsampling_output.images + + output = [] + if output_type == "pil": + # Each sample in the batch may have multiple output images. When returning as PIL images, + # these images cannot be concatenated. Therefore, for each sample, + # a list is used to represent all the output images. + output = [] + start = 0 + for n in n_target_per_sample: + output.append(image[start : start + n]) + start += n + else: + output = image + + if not return_dict: + return (output,) + + return FluxPipelineOutput(images=output) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/pipeline_visualcloze_generation.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/pipeline_visualcloze_generation.py new file mode 100644 index 0000000000000000000000000000000000000000..e12995106bcfc72e0ab9397435dcb74d9f6d965b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/pipeline_visualcloze_generation.py @@ -0,0 +1,977 @@ +# Copyright 2025 VisualCloze team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Any, Callable, Dict, List, Optional, Union + +import numpy as np +import torch +from transformers import CLIPTextModel, CLIPTokenizer, T5EncoderModel, T5TokenizerFast + +from ...loaders import FluxLoraLoaderMixin, FromSingleFileMixin, TextualInversionLoaderMixin +from ...models.autoencoders import AutoencoderKL +from ...models.transformers import FluxTransformer2DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import ( + USE_PEFT_BACKEND, + deprecate, + is_torch_xla_available, + logging, + replace_example_docstring, + scale_lora_layers, + unscale_lora_layers, +) +from ...utils.torch_utils import randn_tensor +from ..flux.pipeline_flux_fill import calculate_shift, retrieve_latents, retrieve_timesteps +from ..flux.pipeline_output import FluxPipelineOutput +from ..pipeline_utils import DiffusionPipeline +from .visualcloze_utils import VisualClozeProcessor + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```python + >>> import torch + >>> from diffusers import VisualClozeGenerationPipeline, FluxFillPipeline as VisualClozeUpsamplingPipeline + >>> from diffusers.utils import load_image + >>> from PIL import Image + + >>> image_paths = [ + ... # in-context examples + ... [ + ... load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/visualcloze/visualcloze_mask2image_incontext-example-1_mask.jpg" + ... ), + ... load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/visualcloze/visualcloze_mask2image_incontext-example-1_image.jpg" + ... ), + ... ], + ... # query with the target image + ... [ + ... load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/visualcloze/visualcloze_mask2image_query_mask.jpg" + ... ), + ... None, # No image needed for the target image + ... ], + ... ] + >>> task_prompt = "In each row, a logical task is demonstrated to achieve [IMAGE2] an aesthetically pleasing photograph based on [IMAGE1] sam 2-generated masks with rich color coding." + >>> content_prompt = "Majestic photo of a golden eagle perched on a rocky outcrop in a mountainous landscape. The eagle is positioned in the right foreground, facing left, with its sharp beak and keen eyes prominently visible. Its plumage is a mix of dark brown and golden hues, with intricate feather details. The background features a soft-focus view of snow-capped mountains under a cloudy sky, creating a serene and grandiose atmosphere. The foreground includes rugged rocks and patches of green moss. Photorealistic, medium depth of field, soft natural lighting, cool color palette, high contrast, sharp focus on the eagle, blurred background, tranquil, majestic, wildlife photography." + >>> pipe = VisualClozeGenerationPipeline.from_pretrained( + ... "VisualCloze/VisualClozePipeline-384", resolution=384, torch_dtype=torch.bfloat16 + ... ) + >>> pipe.to("cuda") + + >>> image = pipe( + ... task_prompt=task_prompt, + ... content_prompt=content_prompt, + ... image=image_paths, + ... guidance_scale=30, + ... num_inference_steps=30, + ... max_sequence_length=512, + ... generator=torch.Generator("cpu").manual_seed(0), + ... ).images[0][0] + + >>> # optional, upsampling the generated image + >>> pipe_upsample = VisualClozeUpsamplingPipeline.from_pipe(pipe) + >>> pipe_upsample.to("cuda") + + >>> mask_image = Image.new("RGB", image.size, (255, 255, 255)) + + >>> image = pipe_upsample( + ... image=image, + ... mask_image=mask_image, + ... prompt=content_prompt, + ... width=1344, + ... height=768, + ... strength=0.4, + ... guidance_scale=30, + ... num_inference_steps=30, + ... max_sequence_length=512, + ... generator=torch.Generator("cpu").manual_seed(0), + ... ).images[0] + + >>> image.save("visualcloze.png") + ``` +""" + + +class VisualClozeGenerationPipeline( + DiffusionPipeline, + FluxLoraLoaderMixin, + FromSingleFileMixin, + TextualInversionLoaderMixin, +): + r""" + The VisualCloze pipeline for image generation with visual context. Reference: + https://github.com/lzyhha/VisualCloze/tree/main This pipeline is designed to generate images based on visual + in-context examples. + + Args: + transformer ([`FluxTransformer2DModel`]): + Conditional Transformer (MMDiT) architecture to denoise the encoded image latents. + scheduler ([`FlowMatchEulerDiscreteScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKL`]): + Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. + text_encoder ([`CLIPTextModel`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically + the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. + text_encoder_2 ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/t5-v1_1-xxl](https://huggingface.co/google/t5-v1_1-xxl) variant. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/en/model_doc/clip#transformers.CLIPTokenizer). + tokenizer_2 (`T5TokenizerFast`): + Second Tokenizer of class + [T5TokenizerFast](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5TokenizerFast). + resolution (`int`, *optional*, defaults to 384): + The resolution of each image when concatenating images from the query and in-context examples. + """ + + model_cpu_offload_seq = "text_encoder->text_encoder_2->transformer->vae" + _optional_components = [] + _callback_tensor_inputs = ["latents", "prompt_embeds"] + + def __init__( + self, + scheduler: FlowMatchEulerDiscreteScheduler, + vae: AutoencoderKL, + text_encoder: CLIPTextModel, + tokenizer: CLIPTokenizer, + text_encoder_2: T5EncoderModel, + tokenizer_2: T5TokenizerFast, + transformer: FluxTransformer2DModel, + resolution: int = 384, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + text_encoder_2=text_encoder_2, + tokenizer=tokenizer, + tokenizer_2=tokenizer_2, + transformer=transformer, + scheduler=scheduler, + ) + self.resolution = resolution + self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1) if getattr(self, "vae", None) else 8 + # Flux latents are turned into 2x2 patches and packed. This means the latent width and height has to be divisible + # by the patch size. So the vae scale factor is multiplied by the patch size to account for this + self.latent_channels = self.vae.config.latent_channels if getattr(self, "vae", None) else 16 + self.image_processor = VisualClozeProcessor( + vae_scale_factor=self.vae_scale_factor * 2, vae_latent_channels=self.latent_channels, resolution=resolution + ) + self.tokenizer_max_length = ( + self.tokenizer.model_max_length if hasattr(self, "tokenizer") and self.tokenizer is not None else 77 + ) + self.default_sample_size = 128 + + # Copied from diffusers.pipelines.flux.pipeline_flux.FluxPipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_images_per_prompt: int = 1, + max_sequence_length: int = 512, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + batch_size = len(prompt) + + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer_2) + + text_inputs = self.tokenizer_2( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + return_length=False, + return_overflowing_tokens=False, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer_2(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer_2.batch_decode(untruncated_ids[:, self.tokenizer_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because `max_sequence_length` is set to " + f" {max_sequence_length} tokens: {removed_text}" + ) + + prompt_embeds = self.text_encoder_2(text_input_ids.to(device), output_hidden_states=False)[0] + + dtype = self.text_encoder_2.dtype + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + + _, seq_len, _ = prompt_embeds.shape + + # duplicate text embeddings and attention mask for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.flux.pipeline_flux.FluxPipeline._get_clip_prompt_embeds + def _get_clip_prompt_embeds( + self, + prompt: Union[str, List[str]], + num_images_per_prompt: int = 1, + device: Optional[torch.device] = None, + ): + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + batch_size = len(prompt) + + if isinstance(self, TextualInversionLoaderMixin): + prompt = self.maybe_convert_prompt(prompt, self.tokenizer) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer_max_length, + truncation=True, + return_overflowing_tokens=False, + return_length=False, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer.batch_decode(untruncated_ids[:, self.tokenizer_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer_max_length} tokens: {removed_text}" + ) + prompt_embeds = self.text_encoder(text_input_ids.to(device), output_hidden_states=False) + + # Use pooled output of CLIPTextModel + prompt_embeds = prompt_embeds.pooler_output + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt) + prompt_embeds = prompt_embeds.view(batch_size * num_images_per_prompt, -1) + + return prompt_embeds + + # Modified from diffusers.pipelines.flux.pipeline_flux.FluxPipeline.encode_prompt + def encode_prompt( + self, + layout_prompt: Union[str, List[str]], + task_prompt: Union[str, List[str]], + content_prompt: Union[str, List[str]], + device: Optional[torch.device] = None, + num_images_per_prompt: int = 1, + prompt_embeds: Optional[torch.FloatTensor] = None, + pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + max_sequence_length: int = 512, + lora_scale: Optional[float] = None, + ): + r""" + + Args: + layout_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to define the number of in-context examples and the number of images involved in + the task. + task_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to define the task intention. + content_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to define the content or caption of the target image to be generated. + device: (`torch.device`): + torch device + num_images_per_prompt (`int`): + number of images that should be generated per prompt + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + lora_scale (`float`, *optional*): + A lora scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded. + """ + device = device or self._execution_device + + # set lora scale so that monkey patched LoRA + # function of text encoder can correctly access it + if lora_scale is not None and isinstance(self, FluxLoraLoaderMixin): + self._lora_scale = lora_scale + + # dynamically adjust the LoRA scale + if self.text_encoder is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder, lora_scale) + if self.text_encoder_2 is not None and USE_PEFT_BACKEND: + scale_lora_layers(self.text_encoder_2, lora_scale) + + if isinstance(layout_prompt, str): + layout_prompt = [layout_prompt] + task_prompt = [task_prompt] + content_prompt = [content_prompt] + + def _preprocess(prompt, content=False): + if prompt is not None: + return f"The last image of the last row depicts: {prompt}" if content else prompt + else: + return "" + + prompt = [ + f"{_preprocess(layout_prompt[i])} {_preprocess(task_prompt[i])} {_preprocess(content_prompt[i], content=True)}".strip() + for i in range(len(layout_prompt)) + ] + pooled_prompt_embeds = self._get_clip_prompt_embeds( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + ) + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + ) + + if self.text_encoder is not None: + if isinstance(self, FluxLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder, lora_scale) + + if self.text_encoder_2 is not None: + if isinstance(self, FluxLoraLoaderMixin) and USE_PEFT_BACKEND: + # Retrieve the original scale by scaling back the LoRA layers + unscale_lora_layers(self.text_encoder_2, lora_scale) + + dtype = self.text_encoder.dtype if self.text_encoder is not None else self.transformer.dtype + text_ids = torch.zeros(prompt_embeds.shape[1], 3).to(device=device, dtype=dtype) + + return prompt_embeds, pooled_prompt_embeds, text_ids + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3_inpaint.StableDiffusion3InpaintPipeline._encode_vae_image + def _encode_vae_image(self, image: torch.Tensor, generator: torch.Generator): + if isinstance(generator, list): + image_latents = [ + retrieve_latents(self.vae.encode(image[i : i + 1]), generator=generator[i]) + for i in range(image.shape[0]) + ] + image_latents = torch.cat(image_latents, dim=0) + else: + image_latents = retrieve_latents(self.vae.encode(image), generator=generator) + + image_latents = (image_latents - self.vae.config.shift_factor) * self.vae.config.scaling_factor + + return image_latents + + # Copied from diffusers.pipelines.stable_diffusion_3.pipeline_stable_diffusion_3_img2img.StableDiffusion3Img2ImgPipeline.get_timesteps + def get_timesteps(self, num_inference_steps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(num_inference_steps * strength, num_inference_steps) + + t_start = int(max(num_inference_steps - init_timestep, 0)) + timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :] + if hasattr(self.scheduler, "set_begin_index"): + self.scheduler.set_begin_index(t_start * self.scheduler.order) + + return timesteps, num_inference_steps - t_start + + def check_inputs( + self, + image, + task_prompt, + content_prompt, + prompt_embeds=None, + pooled_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + max_sequence_length=None, + ): + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + # Validate prompt inputs + if (task_prompt is not None or content_prompt is not None) and prompt_embeds is not None: + raise ValueError("Cannot provide both text `task_prompt` + `content_prompt` and `prompt_embeds`. ") + + if task_prompt is None and content_prompt is None and prompt_embeds is None: + raise ValueError("Must provide either `task_prompt` + `content_prompt` or pre-computed `prompt_embeds`. ") + + # Validate prompt types and consistency + if task_prompt is None: + raise ValueError("`task_prompt` is missing.") + + if task_prompt is not None and not isinstance(task_prompt, (str, list)): + raise ValueError(f"`task_prompt` must be str or list, got {type(task_prompt)}") + + if content_prompt is not None and not isinstance(content_prompt, (str, list)): + raise ValueError(f"`content_prompt` must be str or list, got {type(content_prompt)}") + + if isinstance(task_prompt, list) or isinstance(content_prompt, list): + if not isinstance(task_prompt, list) or not isinstance(content_prompt, list): + raise ValueError( + f"`task_prompt` and `content_prompt` must both be lists, or both be of type str or None, " + f"got {type(task_prompt)} and {type(content_prompt)}" + ) + if len(content_prompt) != len(task_prompt): + raise ValueError("`task_prompt` and `content_prompt` must have the same length whe they are lists.") + + for sample in image: + if not isinstance(sample, list) or not isinstance(sample[0], list): + raise ValueError("Each sample in the batch must have a 2D list of images.") + if len({len(row) for row in sample}) != 1: + raise ValueError("Each in-context example and query should contain the same number of images.") + if not any(img is None for img in sample[-1]): + raise ValueError("There are no targets in the query, which should be represented as None.") + for row in sample[:-1]: + if any(img is None for img in row): + raise ValueError("Images are missing in in-context examples.") + + # Validate embeddings + if prompt_embeds is not None and pooled_prompt_embeds is None: + raise ValueError( + "If `prompt_embeds` are provided, `pooled_prompt_embeds` also have to be passed. Make sure to generate `pooled_prompt_embeds` from the same text encoder that was used to generate `prompt_embeds`." + ) + + # Validate sequence length + if max_sequence_length is not None and max_sequence_length > 512: + raise ValueError(f"max_sequence_length cannot exceed 512, got {max_sequence_length}") + + @staticmethod + def _prepare_latent_image_ids(image, vae_scale_factor, device, dtype): + latent_image_ids = [] + + for idx, img in enumerate(image, start=1): + img = img.squeeze(0) + channels, height, width = img.shape + + num_patches_h = height // vae_scale_factor // 2 + num_patches_w = width // vae_scale_factor // 2 + + patch_ids = torch.zeros(num_patches_h, num_patches_w, 3, device=device, dtype=dtype) + patch_ids[..., 0] = idx + patch_ids[..., 1] = torch.arange(num_patches_h, device=device, dtype=dtype)[:, None] + patch_ids[..., 2] = torch.arange(num_patches_w, device=device, dtype=dtype)[None, :] + + patch_ids = patch_ids.reshape(-1, 3) + latent_image_ids.append(patch_ids) + + return torch.cat(latent_image_ids, dim=0) + + @staticmethod + # Copied from diffusers.pipelines.flux.pipeline_flux.FluxPipeline._pack_latents + def _pack_latents(latents, batch_size, num_channels_latents, height, width): + latents = latents.view(batch_size, num_channels_latents, height // 2, 2, width // 2, 2) + latents = latents.permute(0, 2, 4, 1, 3, 5) + latents = latents.reshape(batch_size, (height // 2) * (width // 2), num_channels_latents * 4) + + return latents + + @staticmethod + def _unpack_latents(latents, sizes, vae_scale_factor): + batch_size, num_patches, channels = latents.shape + + start = 0 + unpacked_latents = [] + for i in range(len(sizes)): + cur_size = sizes[i] + height = cur_size[0][0] // vae_scale_factor + width = sum([size[1] for size in cur_size]) // vae_scale_factor + + end = start + (height * width) // 4 + + cur_latents = latents[:, start:end] + cur_latents = cur_latents.view(batch_size, height // 2, width // 2, channels // 4, 2, 2) + cur_latents = cur_latents.permute(0, 3, 1, 4, 2, 5) + cur_latents = cur_latents.reshape(batch_size, channels // (2 * 2), height, width) + + unpacked_latents.append(cur_latents) + + start = end + + return unpacked_latents + + def enable_vae_slicing(self): + r""" + Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to + compute decoding in several steps. This is useful to save some memory and allow larger batch sizes. + """ + depr_message = f"Calling `enable_vae_slicing()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.enable_slicing()`." + deprecate( + "enable_vae_slicing", + "0.40.0", + depr_message, + ) + self.vae.enable_slicing() + + def disable_vae_slicing(self): + r""" + Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to + computing decoding in one step. + """ + depr_message = f"Calling `disable_vae_slicing()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.disable_slicing()`." + deprecate( + "disable_vae_slicing", + "0.40.0", + depr_message, + ) + self.vae.disable_slicing() + + def enable_vae_tiling(self): + r""" + Enable tiled VAE decoding. When this option is enabled, the VAE will split the input tensor into tiles to + compute decoding and encoding in several steps. This is useful for saving a large amount of memory and to allow + processing larger images. + """ + depr_message = f"Calling `enable_vae_tiling()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.enable_tiling()`." + deprecate( + "enable_vae_tiling", + "0.40.0", + depr_message, + ) + self.vae.enable_tiling() + + def disable_vae_tiling(self): + r""" + Disable tiled VAE decoding. If `enable_vae_tiling` was previously enabled, this method will go back to + computing decoding in one step. + """ + depr_message = f"Calling `disable_vae_tiling()` on a `{self.__class__.__name__}` is deprecated and this method will be removed in a future version. Please use `pipe.vae.disable_tiling()`." + deprecate( + "disable_vae_tiling", + "0.40.0", + depr_message, + ) + self.vae.disable_tiling() + + def _prepare_latents(self, image, mask, gen, vae_scale_factor, device, dtype): + """Helper function to prepare latents for a single batch.""" + # Concatenate images and masks along width dimension + image = [torch.cat(img, dim=3).to(device=device, dtype=dtype) for img in image] + mask = [torch.cat(m, dim=3).to(device=device, dtype=dtype) for m in mask] + + # Generate latent image IDs + latent_image_ids = self._prepare_latent_image_ids(image, vae_scale_factor, device, dtype) + + # For initial encoding, use actual images + image_latent = [self._encode_vae_image(img, gen) for img in image] + masked_image_latent = [img.clone() for img in image_latent] + + for i in range(len(image_latent)): + # Rearrange latents and masks for patch processing + num_channels_latents, height, width = image_latent[i].shape[1:] + image_latent[i] = self._pack_latents(image_latent[i], 1, num_channels_latents, height, width) + masked_image_latent[i] = self._pack_latents(masked_image_latent[i], 1, num_channels_latents, height, width) + + # Rearrange masks for patch processing + num_channels_latents, height, width = mask[i].shape[1:] + mask[i] = mask[i].view( + 1, + num_channels_latents, + height // vae_scale_factor, + vae_scale_factor, + width // vae_scale_factor, + vae_scale_factor, + ) + mask[i] = mask[i].permute(0, 1, 3, 5, 2, 4) + mask[i] = mask[i].reshape( + 1, + num_channels_latents * (vae_scale_factor**2), + height // vae_scale_factor, + width // vae_scale_factor, + ) + mask[i] = self._pack_latents( + mask[i], + 1, + num_channels_latents * (vae_scale_factor**2), + height // vae_scale_factor, + width // vae_scale_factor, + ) + + # Concatenate along batch dimension + image_latent = torch.cat(image_latent, dim=1) + masked_image_latent = torch.cat(masked_image_latent, dim=1) + mask = torch.cat(mask, dim=1) + + return image_latent, masked_image_latent, mask, latent_image_ids + + def prepare_latents( + self, + input_image, + input_mask, + timestep, + batch_size, + dtype, + device, + generator, + vae_scale_factor, + ): + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + # Process each batch + masked_image_latents = [] + image_latents = [] + masks = [] + latent_image_ids = [] + + for i in range(len(input_image)): + _image_latent, _masked_image_latent, _mask, _latent_image_ids = self._prepare_latents( + input_image[i], + input_mask[i], + generator if isinstance(generator, torch.Generator) else generator[i], + vae_scale_factor, + device, + dtype, + ) + masked_image_latents.append(_masked_image_latent) + image_latents.append(_image_latent) + masks.append(_mask) + latent_image_ids.append(_latent_image_ids) + + # Concatenate all batches + masked_image_latents = torch.cat(masked_image_latents, dim=0) + image_latents = torch.cat(image_latents, dim=0) + masks = torch.cat(masks, dim=0) + + # Handle batch size expansion + if batch_size > masked_image_latents.shape[0]: + if batch_size % masked_image_latents.shape[0] == 0: + # Expand batches by repeating + additional_image_per_prompt = batch_size // masked_image_latents.shape[0] + masked_image_latents = torch.cat([masked_image_latents] * additional_image_per_prompt, dim=0) + image_latents = torch.cat([image_latents] * additional_image_per_prompt, dim=0) + masks = torch.cat([masks] * additional_image_per_prompt, dim=0) + else: + raise ValueError( + f"Cannot expand batch size from {masked_image_latents.shape[0]} to {batch_size}. " + "Batch sizes must be multiples of each other." + ) + + # Add noise to latents + noises = randn_tensor(image_latents.shape, generator=generator, device=device, dtype=dtype) + latents = self.scheduler.scale_noise(image_latents, timestep, noises).to(dtype=dtype) + + # Combine masked latents with masks + masked_image_latents = torch.cat((masked_image_latents, masks), dim=-1).to(dtype=dtype) + + return latents, masked_image_latents, latent_image_ids[0] + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def joint_attention_kwargs(self): + return self._joint_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + task_prompt: Union[str, List[str]] = None, + content_prompt: Union[str, List[str]] = None, + image: Optional[torch.FloatTensor] = None, + num_inference_steps: int = 50, + sigmas: Optional[List[float]] = None, + guidance_scale: float = 30.0, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.FloatTensor] = None, + prompt_embeds: Optional[torch.FloatTensor] = None, + pooled_prompt_embeds: Optional[torch.FloatTensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + joint_attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + Function invoked when calling the VisualCloze pipeline for generation. + + Args: + task_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to define the task intention. + content_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to define the content or caption of the target image to be generated. + image (`torch.Tensor`, `PIL.Image.Image`, `np.ndarray`, `List[torch.Tensor]`, `List[PIL.Image.Image]`, or `List[np.ndarray]`): + `Image`, numpy array or tensor representing an image batch to be used as the starting point. For both + numpy array and pytorch tensor, the expected value range is between `[0, 1]` If it's a tensor or a list + or tensors, the expected shape should be `(B, C, H, W)` or `(C, H, W)`. If it is a numpy array or a + list of arrays, the expected shape should be `(B, H, W, C)` or `(H, W, C)`. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 30.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.FloatTensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + pooled_prompt_embeds (`torch.FloatTensor`, *optional*): + Pre-generated pooled text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. + If not provided, pooled text embeddings will be generated from `prompt` input argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.flux.FluxPipelineOutput`] instead of a plain tuple. + joint_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int` defaults to 512): Maximum sequence length to use with the `prompt`. + + Examples: + + Returns: + [`~pipelines.flux.FluxPipelineOutput`] or `tuple`: [`~pipelines.flux.FluxPipelineOutput`] if `return_dict` + is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the generated + images. + """ + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + image, + task_prompt, + content_prompt, + prompt_embeds=prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + max_sequence_length=max_sequence_length, + ) + + self._guidance_scale = guidance_scale + self._joint_attention_kwargs = joint_attention_kwargs + self._interrupt = False + + processor_output = self.image_processor.preprocess( + task_prompt, content_prompt, image, vae_scale_factor=self.vae_scale_factor + ) + + # 2. Define call parameters + if processor_output["task_prompt"] is not None and isinstance(processor_output["task_prompt"], str): + batch_size = 1 + elif processor_output["task_prompt"] is not None and isinstance(processor_output["task_prompt"], list): + batch_size = len(processor_output["task_prompt"]) + + device = self._execution_device + + # 3. Prepare prompt embeddings + lora_scale = ( + self.joint_attention_kwargs.get("scale", None) if self.joint_attention_kwargs is not None else None + ) + prompt_embeds, pooled_prompt_embeds, text_ids = self.encode_prompt( + layout_prompt=processor_output["layout_prompt"], + task_prompt=processor_output["task_prompt"], + content_prompt=processor_output["content_prompt"], + prompt_embeds=prompt_embeds, + pooled_prompt_embeds=pooled_prompt_embeds, + device=device, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + lora_scale=lora_scale, + ) + + # 4. Prepare timesteps + # Calculate sequence length and shift factor + image_seq_len = sum( + (size[0] // self.vae_scale_factor // 2) * (size[1] // self.vae_scale_factor // 2) + for sample in processor_output["image_size"][0] + for size in sample + ) + + # Calculate noise schedule parameters + mu = calculate_shift( + image_seq_len, + self.scheduler.config.get("base_image_seq_len", 256), + self.scheduler.config.get("max_image_seq_len", 4096), + self.scheduler.config.get("base_shift", 0.5), + self.scheduler.config.get("max_shift", 1.15), + ) + + # Get timesteps + sigmas = np.linspace(1.0, 1 / num_inference_steps, num_inference_steps) if sigmas is None else sigmas + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, + num_inference_steps, + device, + sigmas=sigmas, + mu=mu, + ) + timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, 1.0, device) + + # 5. Prepare latent variables + latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt) + latents, masked_image_latents, latent_image_ids = self.prepare_latents( + processor_output["init_image"], + processor_output["mask"], + latent_timestep, + batch_size * num_images_per_prompt, + prompt_embeds.dtype, + device, + generator, + vae_scale_factor=self.vae_scale_factor, + ) + + # Calculate warmup steps + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + self._num_timesteps = len(timesteps) + + # Prepare guidance + if self.transformer.config.guidance_embeds: + guidance = torch.full([1], guidance_scale, device=device, dtype=torch.float32) + guidance = guidance.expand(latents.shape[0]) + else: + guidance = None + + # 6. Denoising loop + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # Broadcast to batch dimension in a way that's compatible with ONNX/Core ML + timestep = t.expand(latents.shape[0]).to(latents.dtype) + latent_model_input = torch.cat((latents, masked_image_latents), dim=2) + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep / 1000, + guidance=guidance, + pooled_projections=pooled_prompt_embeds, + encoder_hidden_states=prompt_embeds, + txt_ids=text_ids, + img_ids=latent_image_ids, + joint_attention_kwargs=self.joint_attention_kwargs, + return_dict=False, + )[0] + + # Compute the previous noisy sample x_t -> x_t-1 + latents_dtype = latents.dtype + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if latents.dtype != latents_dtype: + if torch.backends.mps.is_available(): + # Some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272 + latents = latents.to(latents_dtype) + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + + # Call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + # XLA optimization + if XLA_AVAILABLE: + xm.mark_step() + + # 7. Post-process the image + # Crop the target image + # Since the generated image is a concatenation of the conditional and target regions, + # we need to extract only the target regions based on their positions + image = [] + if output_type == "latent": + image = latents + else: + for b in range(len(latents)): + cur_image_size = processor_output["image_size"][b % batch_size] + cur_target_position = processor_output["target_position"][b % batch_size] + cur_latent = self._unpack_latents(latents[b].unsqueeze(0), cur_image_size, self.vae_scale_factor)[-1] + cur_latent = (cur_latent / self.vae.config.scaling_factor) + self.vae.config.shift_factor + cur_image = self.vae.decode(cur_latent, return_dict=False)[0] + cur_image = self.image_processor.postprocess(cur_image, output_type=output_type)[0] + + start = 0 + cropped = [] + for i, size in enumerate(cur_image_size[-1]): + if cur_target_position[i]: + if output_type == "pil": + cropped.append(cur_image.crop((start, 0, start + size[1], size[0]))) + else: + cropped.append(cur_image[0 : size[0], start : start + size[1]]) + start += size[1] + image.append(cropped) + if output_type != "pil": + image = np.concatenate([arr[None] for sub_image in image for arr in sub_image], axis=0) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return FluxPipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/visualcloze_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/visualcloze_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..efe5dff476238388a780b615516eb0fc96dadf97 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/visualcloze/visualcloze_utils.py @@ -0,0 +1,251 @@ +# Copyright 2025 VisualCloze team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Dict, List, Optional, Tuple, Union + +import torch +from PIL import Image + +from ...image_processor import VaeImageProcessor + + +class VisualClozeProcessor(VaeImageProcessor): + """ + Image processor for the VisualCloze pipeline. + + This processor handles the preprocessing of images for visual cloze tasks, including resizing, normalization, and + mask generation. + + Args: + resolution (int, optional): + Target resolution for processing images. Each image will be resized to this resolution before being + concatenated to avoid the out-of-memory error. Defaults to 384. + *args: Additional arguments passed to [~image_processor.VaeImageProcessor] + **kwargs: Additional keyword arguments passed to [~image_processor.VaeImageProcessor] + """ + + def __init__(self, *args, resolution: int = 384, **kwargs): + super().__init__(*args, **kwargs) + self.resolution = resolution + + def preprocess_image( + self, input_images: List[List[Optional[Image.Image]]], vae_scale_factor: int + ) -> Tuple[List[List[torch.Tensor]], List[List[List[int]]], List[int]]: + """ + Preprocesses input images for the VisualCloze pipeline. + + This function handles the preprocessing of input images by: + 1. Resizing and cropping images to maintain consistent dimensions + 2. Converting images to the Tensor format for the VAE + 3. Normalizing pixel values + 4. Tracking image sizes and positions of target images + + Args: + input_images (List[List[Optional[Image.Image]]]): + A nested list of PIL Images where: + - Outer list represents different samples, including in-context examples and the query + - Inner list contains images for the task + - In the last row, condition images are provided and the target images are placed as None + vae_scale_factor (int): + The scale factor used by the VAE for resizing images + + Returns: + Tuple containing: + - List[List[torch.Tensor]]: Preprocessed images in tensor format + - List[List[List[int]]]: Dimensions of each processed image [height, width] + - List[int]: Target positions indicating which images are to be generated + """ + n_samples, n_task_images = len(input_images), len(input_images[0]) + divisible = 2 * vae_scale_factor + + processed_images: List[List[Image.Image]] = [[] for _ in range(n_samples)] + resize_size: List[Optional[Tuple[int, int]]] = [None for _ in range(n_samples)] + target_position: List[int] = [] + + # Process each sample + for i in range(n_samples): + # Determine size from first non-None image + for j in range(n_task_images): + if input_images[i][j] is not None: + aspect_ratio = input_images[i][j].width / input_images[i][j].height + target_area = self.resolution * self.resolution + new_h = int((target_area / aspect_ratio) ** 0.5) + new_w = int(new_h * aspect_ratio) + + new_w = max(new_w // divisible, 1) * divisible + new_h = max(new_h // divisible, 1) * divisible + resize_size[i] = (new_w, new_h) + break + + # Process all images in the sample + for j in range(n_task_images): + if input_images[i][j] is not None: + target = self._resize_and_crop(input_images[i][j], resize_size[i][0], resize_size[i][1]) + processed_images[i].append(target) + if i == n_samples - 1: + target_position.append(0) + else: + blank = Image.new("RGB", resize_size[i] or (self.resolution, self.resolution), (0, 0, 0)) + processed_images[i].append(blank) + if i == n_samples - 1: + target_position.append(1) + + # Ensure consistent width for multiple target images when there are multiple target images + if len(target_position) > 1 and sum(target_position) > 1: + new_w = resize_size[n_samples - 1][0] or 384 + for i in range(len(processed_images)): + for j in range(len(processed_images[i])): + if processed_images[i][j] is not None: + new_h = int(processed_images[i][j].height * (new_w / processed_images[i][j].width)) + new_w = int(new_w / 16) * 16 + new_h = int(new_h / 16) * 16 + processed_images[i][j] = self._resize_and_crop(processed_images[i][j], new_h, new_w) + + # Convert to tensors and normalize + image_sizes = [] + for i in range(len(processed_images)): + image_sizes.append([[img.height, img.width] for img in processed_images[i]]) + for j, image in enumerate(processed_images[i]): + image = self.pil_to_numpy(image) + image = self.numpy_to_pt(image) + image = self.normalize(image) + processed_images[i][j] = image + + return processed_images, image_sizes, target_position + + def preprocess_mask( + self, input_images: List[List[Image.Image]], target_position: List[int] + ) -> List[List[torch.Tensor]]: + """ + Generate masks for the VisualCloze pipeline. + + Args: + input_images (List[List[Image.Image]]): + Processed images from preprocess_image + target_position (List[int]): + Binary list marking the positions of target images (1 for target, 0 for condition) + + Returns: + List[List[torch.Tensor]]: + A nested list of mask tensors (1 for target positions, 0 for condition images) + """ + mask = [] + for i, row in enumerate(input_images): + if i == len(input_images) - 1: # Query row + row_masks = [ + torch.full((1, 1, row[0].shape[2], row[0].shape[3]), fill_value=m) for m in target_position + ] + else: # In-context examples + row_masks = [ + torch.full((1, 1, row[0].shape[2], row[0].shape[3]), fill_value=0) for _ in target_position + ] + mask.append(row_masks) + return mask + + def preprocess_image_upsampling( + self, + input_images: List[List[Image.Image]], + height: int, + width: int, + ) -> Tuple[List[List[Image.Image]], List[List[List[int]]]]: + """Process images for the upsampling stage in the VisualCloze pipeline. + + Args: + input_images: Input image to process + height: Target height + width: Target width + + Returns: + Tuple of processed image and its size + """ + image = self.resize(input_images[0][0], height, width) + image = self.pil_to_numpy(image) # to np + image = self.numpy_to_pt(image) # to pt + image = self.normalize(image) + + input_images[0][0] = image + image_sizes = [[[height, width]]] + return input_images, image_sizes + + def preprocess_mask_upsampling(self, input_images: List[List[Image.Image]]) -> List[List[torch.Tensor]]: + return [[torch.ones((1, 1, input_images[0][0].shape[2], input_images[0][0].shape[3]))]] + + def get_layout_prompt(self, size: Tuple[int, int]) -> str: + layout_instruction = ( + f"A grid layout with {size[0]} rows and {size[1]} columns, displaying {size[0] * size[1]} images arranged side by side.", + ) + return layout_instruction + + def preprocess( + self, + task_prompt: Union[str, List[str]], + content_prompt: Union[str, List[str]], + input_images: Optional[List[List[List[Optional[str]]]]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + upsampling: bool = False, + vae_scale_factor: int = 16, + ) -> Dict: + """Process visual cloze inputs. + + Args: + task_prompt: Task description(s) + content_prompt: Content description(s) + input_images: List of images or None for the target images + height: Optional target height for upsampling stage + width: Optional target width for upsampling stage + upsampling: Whether this is in the upsampling processing stage + + Returns: + Dictionary containing processed images, masks, prompts and metadata + """ + if isinstance(task_prompt, str): + task_prompt = [task_prompt] + content_prompt = [content_prompt] + input_images = [input_images] + + output = { + "init_image": [], + "mask": [], + "task_prompt": task_prompt if not upsampling else [None for _ in range(len(task_prompt))], + "content_prompt": content_prompt, + "layout_prompt": [], + "target_position": [], + "image_size": [], + } + for i in range(len(task_prompt)): + if upsampling: + layout_prompt = None + else: + layout_prompt = self.get_layout_prompt((len(input_images[i]), len(input_images[i][0]))) + + if upsampling: + cur_processed_images, cur_image_size = self.preprocess_image_upsampling( + input_images[i], height=height, width=width + ) + cur_mask = self.preprocess_mask_upsampling(cur_processed_images) + else: + cur_processed_images, cur_image_size, cur_target_position = self.preprocess_image( + input_images[i], vae_scale_factor=vae_scale_factor + ) + cur_mask = self.preprocess_mask(cur_processed_images, cur_target_position) + + output["target_position"].append(cur_target_position) + + output["image_size"].append(cur_image_size) + output["init_image"].append(cur_processed_images) + output["mask"].append(cur_mask) + output["layout_prompt"].append(layout_prompt) + + return output diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ad51a52f9242052d1424a360c59cac72f2d8129e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/__init__.py @@ -0,0 +1,54 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_wan"] = ["WanPipeline"] + _import_structure["pipeline_wan_animate"] = ["WanAnimatePipeline"] + _import_structure["pipeline_wan_i2v"] = ["WanImageToVideoPipeline"] + _import_structure["pipeline_wan_vace"] = ["WanVACEPipeline"] + _import_structure["pipeline_wan_video2video"] = ["WanVideoToVideoPipeline"] +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_wan import WanPipeline + from .pipeline_wan_animate import WanAnimatePipeline + from .pipeline_wan_i2v import WanImageToVideoPipeline + from .pipeline_wan_vace import WanVACEPipeline + from .pipeline_wan_video2video import WanVideoToVideoPipeline +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/image_processor.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/image_processor.py new file mode 100644 index 0000000000000000000000000000000000000000..b1594d08630f5c0b4878f00b0d00f86c0bb96c2d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/image_processor.py @@ -0,0 +1,185 @@ +# Copyright 2025 The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Optional, Tuple, Union + +import numpy as np +import PIL.Image +import torch + +from ...configuration_utils import register_to_config +from ...image_processor import VaeImageProcessor +from ...utils import PIL_INTERPOLATION + + +class WanAnimateImageProcessor(VaeImageProcessor): + r""" + Image processor to preprocess the reference (character) image for the Wan Animate model. + + Args: + do_resize (`bool`, *optional*, defaults to `True`): + Whether to downscale the image's (height, width) dimensions to multiples of `vae_scale_factor`. Can accept + `height` and `width` arguments from [`image_processor.VaeImageProcessor.preprocess`] method. + vae_scale_factor (`int`, *optional*, defaults to `8`): + VAE (spatial) scale factor. If `do_resize` is `True`, the image is automatically resized to multiples of + this factor. + vae_latent_channels (`int`, *optional*, defaults to `16`): + VAE latent channels. + spatial_patch_size (`Tuple[int, int]`, *optional*, defaults to `(2, 2)`): + The spatial patch size used by the diffusion transformer. For Wan models, this is typically (2, 2). + resample (`str`, *optional*, defaults to `lanczos`): + Resampling filter to use when resizing the image. + do_normalize (`bool`, *optional*, defaults to `True`): + Whether to normalize the image to [-1,1]. + do_binarize (`bool`, *optional*, defaults to `False`): + Whether to binarize the image to 0/1. + do_convert_rgb (`bool`, *optional*, defaults to be `False`): + Whether to convert the images to RGB format. + do_convert_grayscale (`bool`, *optional*, defaults to be `False`): + Whether to convert the images to grayscale format. + fill_color (`str` or `float` or `Tuple[float, ...]`, *optional*, defaults to `None`): + An optional fill color when `resize_mode` is set to `"fill"`. This will fill the empty space with that + color instead of filling with data from the image. Any valid `color` argument to `PIL.Image.new` is valid; + if `None`, will default to filling with data from `image`. + """ + + @register_to_config + def __init__( + self, + do_resize: bool = True, + vae_scale_factor: int = 8, + vae_latent_channels: int = 16, + spatial_patch_size: Tuple[int, int] = (2, 2), + resample: str = "lanczos", + reducing_gap: int = None, + do_normalize: bool = True, + do_binarize: bool = False, + do_convert_rgb: bool = False, + do_convert_grayscale: bool = False, + fill_color: Optional[Union[str, float, Tuple[float, ...]]] = 0, + ): + super().__init__() + if do_convert_rgb and do_convert_grayscale: + raise ValueError( + "`do_convert_rgb` and `do_convert_grayscale` can not both be set to `True`," + " if you intended to convert the image into RGB format, please set `do_convert_grayscale = False`.", + " if you intended to convert the image into grayscale format, please set `do_convert_rgb = False`", + ) + + def _resize_and_fill( + self, + image: PIL.Image.Image, + width: int, + height: int, + ) -> PIL.Image.Image: + r""" + Resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center + the image within the dimensions, filling empty with data from image. + + Args: + image (`PIL.Image.Image`): + The image to resize and fill. + width (`int`): + The width to resize the image to. + height (`int`): + The height to resize the image to. + + Returns: + `PIL.Image.Image`: + The resized and filled image. + """ + + ratio = width / height + src_ratio = image.width / image.height + fill_with_image_data = self.config.fill_color is None + fill_color = self.config.fill_color or 0 + + src_w = width if ratio < src_ratio else image.width * height // image.height + src_h = height if ratio >= src_ratio else image.height * width // image.width + + resized = image.resize((src_w, src_h), resample=PIL_INTERPOLATION[self.config.resample]) + res = PIL.Image.new("RGB", (width, height), color=fill_color) + res.paste(resized, box=(width // 2 - src_w // 2, height // 2 - src_h // 2)) + + if fill_with_image_data: + if ratio < src_ratio: + fill_height = height // 2 - src_h // 2 + if fill_height > 0: + res.paste(resized.resize((width, fill_height), box=(0, 0, width, 0)), box=(0, 0)) + res.paste( + resized.resize((width, fill_height), box=(0, resized.height, width, resized.height)), + box=(0, fill_height + src_h), + ) + elif ratio > src_ratio: + fill_width = width // 2 - src_w // 2 + if fill_width > 0: + res.paste(resized.resize((fill_width, height), box=(0, 0, 0, height)), box=(0, 0)) + res.paste( + resized.resize((fill_width, height), box=(resized.width, 0, resized.width, height)), + box=(fill_width + src_w, 0), + ) + + return res + + def get_default_height_width( + self, + image: Union[PIL.Image.Image, np.ndarray, torch.Tensor], + height: Optional[int] = None, + width: Optional[int] = None, + ) -> Tuple[int, int]: + r""" + Returns the height and width of the image, downscaled to the next integer multiple of `vae_scale_factor`. + + Args: + image (`Union[PIL.Image.Image, np.ndarray, torch.Tensor]`): + The image input, which can be a PIL image, NumPy array, or PyTorch tensor. If it is a NumPy array, it + should have shape `[batch, height, width]` or `[batch, height, width, channels]`. If it is a PyTorch + tensor, it should have shape `[batch, channels, height, width]`. + height (`Optional[int]`, *optional*, defaults to `None`): + The height of the preprocessed image. If `None`, the height of the `image` input will be used. + width (`Optional[int]`, *optional*, defaults to `None`): + The width of the preprocessed image. If `None`, the width of the `image` input will be used. + + Returns: + `Tuple[int, int]`: + A tuple containing the height and width, both resized to the nearest integer multiple of + `vae_scale_factor * spatial_patch_size`. + """ + + if height is None: + if isinstance(image, PIL.Image.Image): + height = image.height + elif isinstance(image, torch.Tensor): + height = image.shape[2] + else: + height = image.shape[1] + + if width is None: + if isinstance(image, PIL.Image.Image): + width = image.width + elif isinstance(image, torch.Tensor): + width = image.shape[3] + else: + width = image.shape[2] + + max_area = width * height + aspect_ratio = height / width + mod_value_h = self.config.vae_scale_factor * self.config.spatial_patch_size[0] + mod_value_w = self.config.vae_scale_factor * self.config.spatial_patch_size[1] + + # Try to preserve the aspect ratio + height = round(np.sqrt(max_area * aspect_ratio)) // mod_value_h * mod_value_h + width = round(np.sqrt(max_area / aspect_ratio)) // mod_value_w * mod_value_w + + return height, width diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..88907ad0f0a1dfc828879f30bdd31b9043396144 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_output.py @@ -0,0 +1,20 @@ +from dataclasses import dataclass + +import torch + +from diffusers.utils import BaseOutput + + +@dataclass +class WanPipelineOutput(BaseOutput): + r""" + Output class for Wan pipelines. + + Args: + frames (`torch.Tensor`, `np.ndarray`, or List[List[PIL.Image.Image]]): + List of video outputs - It can be a nested list of length `batch_size,` with each sub-list containing + denoised PIL image sequences of length `num_frames.` It can also be a NumPy array or Torch tensor of shape + `(batch_size, num_frames, channels, height, width)`. + """ + + frames: torch.Tensor diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan.py new file mode 100644 index 0000000000000000000000000000000000000000..78fe71ea91380583e2727aafac85ce66cf223fb4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan.py @@ -0,0 +1,656 @@ +# Copyright 2025 The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +from typing import Any, Callable, Dict, List, Optional, Union + +import regex as re +import torch +from transformers import AutoTokenizer, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...loaders import WanLoraLoaderMixin +from ...models import AutoencoderKLWan, WanTransformer3DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import WanPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """ + Examples: + ```python + >>> import torch + >>> from diffusers.utils import export_to_video + >>> from diffusers import AutoencoderKLWan, WanPipeline + >>> from diffusers.schedulers.scheduling_unipc_multistep import UniPCMultistepScheduler + + >>> # Available models: Wan-AI/Wan2.1-T2V-14B-Diffusers, Wan-AI/Wan2.1-T2V-1.3B-Diffusers + >>> model_id = "Wan-AI/Wan2.1-T2V-14B-Diffusers" + >>> vae = AutoencoderKLWan.from_pretrained(model_id, subfolder="vae", torch_dtype=torch.float32) + >>> pipe = WanPipeline.from_pretrained(model_id, vae=vae, torch_dtype=torch.bfloat16) + >>> flow_shift = 5.0 # 5.0 for 720P, 3.0 for 480P + >>> pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=flow_shift) + >>> pipe.to("cuda") + + >>> prompt = "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window." + >>> negative_prompt = "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards" + + >>> output = pipe( + ... prompt=prompt, + ... negative_prompt=negative_prompt, + ... height=720, + ... width=1280, + ... num_frames=81, + ... guidance_scale=5.0, + ... ).frames[0] + >>> export_to_video(output, "output.mp4", fps=16) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +class WanPipeline(DiffusionPipeline, WanLoraLoaderMixin): + r""" + Pipeline for text-to-video generation using Wan. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + tokenizer ([`T5Tokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + transformer ([`WanTransformer3DModel`]): + Conditional Transformer to denoise the input latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + transformer_2 ([`WanTransformer3DModel`], *optional*): + Conditional Transformer to denoise the input latents during the low-noise stage. If provided, enables + two-stage denoising where `transformer` handles high-noise stages and `transformer_2` handles low-noise + stages. If not provided, only `transformer` is used. + boundary_ratio (`float`, *optional*, defaults to `None`): + Ratio of total timesteps to use as the boundary for switching between transformers in two-stage denoising. + The actual boundary timestep is calculated as `boundary_ratio * num_train_timesteps`. When provided, + `transformer` handles timesteps >= boundary_timestep and `transformer_2` handles timesteps < + boundary_timestep. If `None`, only `transformer` is used for the entire denoising process. + """ + + model_cpu_offload_seq = "text_encoder->transformer->transformer_2->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + _optional_components = ["transformer", "transformer_2"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + vae: AutoencoderKLWan, + scheduler: FlowMatchEulerDiscreteScheduler, + transformer: Optional[WanTransformer3DModel] = None, + transformer_2: Optional[WanTransformer3DModel] = None, + boundary_ratio: Optional[float] = None, + expand_timesteps: bool = False, # Wan2.2 ti2v + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + transformer=transformer, + scheduler=scheduler, + transformer_2=transformer_2, + ) + self.register_to_config(boundary_ratio=boundary_ratio) + self.register_to_config(expand_timesteps=expand_timesteps) + self.vae_scale_factor_temporal = self.vae.config.scale_factor_temporal if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = self.vae.config.scale_factor_spatial if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + height, + width, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + guidance_scale_2=None, + ): + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + if self.config.boundary_ratio is None and guidance_scale_2 is not None: + raise ValueError("`guidance_scale_2` is only supported when the pipeline's `boundary_ratio` is not None.") + + def prepare_latents( + self, + batch_size: int, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 81, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + if latents is not None: + return latents.to(device=device, dtype=dtype) + + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + shape = ( + batch_size, + num_channels_latents, + num_latent_frames, + int(height) // self.vae_scale_factor_spatial, + int(width) // self.vae_scale_factor_spatial, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + return latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1.0 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + height: int = 480, + width: int = 832, + num_frames: int = 81, + num_inference_steps: int = 50, + guidance_scale: float = 5.0, + guidance_scale_2: Optional[float] = None, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, pass `prompt_embeds` instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to avoid during image generation. If not defined, pass `negative_prompt_embeds` + instead. Ignored when not using guidance (`guidance_scale` < `1`). + height (`int`, defaults to `480`): + The height in pixels of the generated image. + width (`int`, defaults to `832`): + The width in pixels of the generated image. + num_frames (`int`, defaults to `81`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `5.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + guidance_scale_2 (`float`, *optional*, defaults to `None`): + Guidance scale for the low-noise stage transformer (`transformer_2`). If `None` and the pipeline's + `boundary_ratio` is not None, uses the same value as `guidance_scale`. Only used when `transformer_2` + and the pipeline's `boundary_ratio` are not None. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`WanPipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, defaults to `512`): + The maximum sequence length of the text encoder. If the prompt is longer than this, it will be + truncated. If the prompt is shorter, it will be padded to this length. + + Examples: + + Returns: + [`~WanPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`WanPipelineOutput`] is returned, otherwise a `tuple` is returned where + the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + height, + width, + prompt_embeds, + negative_prompt_embeds, + callback_on_step_end_tensor_inputs, + guidance_scale_2, + ) + + if num_frames % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`num_frames - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the nearest number." + ) + num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + num_frames = max(num_frames, 1) + + if self.config.boundary_ratio is not None and guidance_scale_2 is None: + guidance_scale_2 = guidance_scale + + self._guidance_scale = guidance_scale + self._guidance_scale_2 = guidance_scale_2 + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + transformer_dtype = self.transformer.dtype if self.transformer is not None else self.transformer_2.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = ( + self.transformer.config.in_channels + if self.transformer is not None + else self.transformer_2.config.in_channels + ) + latents = self.prepare_latents( + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + num_frames, + torch.float32, + device, + generator, + latents, + ) + + mask = torch.ones(latents.shape, dtype=torch.float32, device=device) + + # 6. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + + if self.config.boundary_ratio is not None: + boundary_timestep = self.config.boundary_ratio * self.scheduler.config.num_train_timesteps + else: + boundary_timestep = None + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + self._current_timestep = t + + if boundary_timestep is None or t >= boundary_timestep: + # wan2.1 or high-noise stage in wan2.2 + current_model = self.transformer + current_guidance_scale = guidance_scale + else: + # low-noise stage in wan2.2 + current_model = self.transformer_2 + current_guidance_scale = guidance_scale_2 + + latent_model_input = latents.to(transformer_dtype) + if self.config.expand_timesteps: + # seq_len: num_latent_frames * latent_height//2 * latent_width//2 + temp_ts = (mask[0][0][:, ::2, ::2] * t).flatten() + # batch_size, seq_len + timestep = temp_ts.unsqueeze(0).expand(latents.shape[0], -1) + else: + timestep = t.expand(latents.shape[0]) + + with current_model.cache_context("cond"): + noise_pred = current_model( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + + if self.do_classifier_free_guidance: + with current_model.cache_context("uncond"): + noise_uncond = current_model( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + current_guidance_scale * (noise_pred - noise_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + self._current_timestep = None + + if not output_type == "latent": + latents = latents.to(self.vae.dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video = self.vae.decode(latents, return_dict=False)[0] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return WanPipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_animate.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_animate.py new file mode 100644 index 0000000000000000000000000000000000000000..c7c983b2f7d46a103969c61f1c3a55879ef1c4b4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_animate.py @@ -0,0 +1,1204 @@ +# Copyright 2025 The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +from copy import deepcopy +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import PIL +import regex as re +import torch +import torch.nn.functional as F +from transformers import AutoTokenizer, CLIPImageProcessor, CLIPVisionModel, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput +from ...loaders import WanLoraLoaderMixin +from ...models import AutoencoderKLWan, WanAnimateTransformer3DModel +from ...schedulers import UniPCMultistepScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .image_processor import WanAnimateImageProcessor +from .pipeline_output import WanPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + +EXAMPLE_DOC_STRING = """ + Examples: + ```python + >>> import torch + >>> import numpy as np + >>> from diffusers import WanAnimatePipeline + >>> from diffusers.utils import export_to_video, load_image, load_video + + >>> model_id = "Wan-AI/Wan2.2-Animate-14B-Diffusers" + >>> pipe = WanAnimatePipeline.from_pretrained(model_id, torch_dtype=torch.bfloat16) + >>> # Optionally upcast the Wan VAE to FP32 + >>> pipe.vae.to(torch.float32) + >>> pipe.to("cuda") + + >>> # Load the reference character image + >>> image = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/astronaut.jpg" + ... ) + + >>> # Load pose and face videos (preprocessed from reference video) + >>> # Note: Videos should be preprocessed to extract pose keypoints and face features + >>> # Refer to the Wan-Animate preprocessing documentation for details + >>> pose_video = load_video("path/to/pose_video.mp4") + >>> face_video = load_video("path/to/face_video.mp4") + + >>> # CFG is generally not used for Wan Animate + >>> prompt = ( + ... "An astronaut hatching from an egg, on the surface of the moon, the darkness and depth of space realised in " + ... "the background. High quality, ultrarealistic detail and breath-taking movie-like camera shot." + ... ) + + >>> # Animation mode: Animate the character with the motion from pose/face videos + >>> output = pipe( + ... image=image, + ... pose_video=pose_video, + ... face_video=face_video, + ... prompt=prompt, + ... height=height, + ... width=width, + ... segment_frame_length=77, # Frame length of each inference segment + ... guidance_scale=1.0, + ... num_inference_steps=20, + ... mode="animate", + ... ).frames[0] + >>> export_to_video(output, "output_animation.mp4", fps=30) + + >>> # Replacement mode: Replace a character in the background video + >>> # Requires additional background_video and mask_video inputs + >>> background_video = load_video("path/to/background_video.mp4") + >>> mask_video = load_video("path/to/mask_video.mp4") # Black areas preserved, white areas generated + >>> output = pipe( + ... image=image, + ... pose_video=pose_video, + ... face_video=face_video, + ... background_video=background_video, + ... mask_video=mask_video, + ... prompt=prompt, + ... height=height, + ... width=width, + ... segment_frame_length=77, # Frame length of each inference segment + ... guidance_scale=1.0, + ... num_inference_steps=20, + ... mode="replace", + ... ).frames[0] + >>> export_to_video(output, "output_replacement.mp4", fps=30) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class WanAnimatePipeline(DiffusionPipeline, WanLoraLoaderMixin): + r""" + Pipeline for unified character animation and replacement using Wan-Animate. + + WanAnimatePipeline takes a character image, pose video, and face video as input, and generates a video in two + modes: + + 1. **Animation mode**: The model generates a video of the character image that mimics the human motion in the input + pose and face videos. The character is animated based on the provided motion controls, creating a new animated + video of the character. + + 2. **Replacement mode**: The model replaces a character in a background video with the provided character image, + using the pose and face videos for motion control. This mode requires additional `background_video` and + `mask_video` inputs. The mask video should have black regions where the original content should be preserved and + white regions where the new character should be generated. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + The pipeline also inherits the following loading methods: + - [`~loaders.WanLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + + Args: + tokenizer ([`T5Tokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + image_encoder ([`CLIPVisionModel`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPVisionModel), specifically + the + [clip-vit-huge-patch14](https://github.com/mlfoundations/open_clip/blob/main/docs/PRETRAINED.md#vit-h14-xlm-roberta-large) + variant. + transformer ([`WanAnimateTransformer3DModel`]): + Conditional Transformer to denoise the input latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + image_processor ([`CLIPImageProcessor`]): + Image processor for preprocessing images before encoding. + """ + + model_cpu_offload_seq = "text_encoder->image_encoder->transformer->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + vae: AutoencoderKLWan, + scheduler: UniPCMultistepScheduler, + image_processor: CLIPImageProcessor, + image_encoder: CLIPVisionModel, + transformer: WanAnimateTransformer3DModel, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + image_encoder=image_encoder, + transformer=transformer, + scheduler=scheduler, + image_processor=image_processor, + ) + + self.vae_scale_factor_temporal = self.vae.config.scale_factor_temporal if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = self.vae.config.scale_factor_spatial if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + self.video_processor_for_mask = VideoProcessor( + vae_scale_factor=self.vae_scale_factor_spatial, do_normalize=False, do_convert_grayscale=True + ) + # In case self.transformer is None (e.g. for some pipeline tests) + spatial_patch_size = self.transformer.config.patch_size[-2:] if self.transformer is not None else (2, 2) + self.vae_image_processor = WanAnimateImageProcessor( + vae_scale_factor=self.vae_scale_factor_spatial, + spatial_patch_size=spatial_patch_size, + resample="bilinear", + fill_color=0, + ) + self.image_processor = image_processor + + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 512, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.wan.pipeline_wan_i2v.WanImageToVideoPipeline.encode_image + def encode_image( + self, + image: PipelineImageInput, + device: Optional[torch.device] = None, + ): + device = device or self._execution_device + image = self.image_processor(images=image, return_tensors="pt").to(device) + image_embeds = self.image_encoder(**image, output_hidden_states=True) + return image_embeds.hidden_states[-2] + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + image, + pose_video, + face_video, + background_video, + mask_video, + height, + width, + prompt_embeds=None, + negative_prompt_embeds=None, + image_embeds=None, + callback_on_step_end_tensor_inputs=None, + mode=None, + prev_segment_conditioning_frames=None, + ): + if image is not None and image_embeds is not None: + raise ValueError( + f"Cannot forward both `image`: {image} and `image_embeds`: {image_embeds}. Please make sure to" + " only forward one of the two." + ) + if image is None and image_embeds is None: + raise ValueError( + "Provide either `image` or `prompt_embeds`. Cannot leave both `image` and `image_embeds` undefined." + ) + if image is not None and not isinstance(image, torch.Tensor) and not isinstance(image, PIL.Image.Image): + raise ValueError(f"`image` has to be of type `torch.Tensor` or `PIL.Image.Image` but is {type(image)}") + if pose_video is None: + raise ValueError("Provide `pose_video`. Cannot leave `pose_video` undefined.") + if face_video is None: + raise ValueError("Provide `face_video`. Cannot leave `face_video` undefined.") + if not isinstance(pose_video, list) or not isinstance(face_video, list): + raise ValueError("`pose_video` and `face_video` must be lists of PIL images.") + if len(pose_video) == 0 or len(face_video) == 0: + raise ValueError("`pose_video` and `face_video` must contain at least one frame.") + if mode == "replace" and (background_video is None or mask_video is None): + raise ValueError( + "Provide `background_video` and `mask_video`. Cannot leave both `background_video` and `mask_video`" + " undefined when mode is `replace`." + ) + if mode == "replace" and (not isinstance(background_video, list) or not isinstance(mask_video, list)): + raise ValueError("`background_video` and `mask_video` must be lists of PIL images when mode is `replace`.") + + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found" + f" {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + if mode is not None and (not isinstance(mode, str) or mode not in ("animate", "replace")): + raise ValueError( + f"`mode` has to be of type `str` and in ('animate', 'replace') but its type is {type(mode)} and value is {mode}" + ) + + if prev_segment_conditioning_frames is not None and ( + not isinstance(prev_segment_conditioning_frames, int) or prev_segment_conditioning_frames not in (1, 5) + ): + raise ValueError( + f"`prev_segment_conditioning_frames` has to be of type `int` and 1 or 5 but its type is" + f" {type(prev_segment_conditioning_frames)} and value is {prev_segment_conditioning_frames}" + ) + + def get_i2v_mask( + self, + batch_size: int, + latent_t: int, + latent_h: int, + latent_w: int, + mask_len: int = 1, + mask_pixel_values: Optional[torch.Tensor] = None, + dtype: Optional[torch.dtype] = None, + device: Union[str, torch.device] = "cuda", + ) -> torch.Tensor: + # mask_pixel_values shape (if supplied): [B, C = 1, T, latent_h, latent_w] + if mask_pixel_values is None: + mask_lat_size = torch.zeros( + batch_size, 1, (latent_t - 1) * 4 + 1, latent_h, latent_w, dtype=dtype, device=device + ) + else: + mask_lat_size = mask_pixel_values.clone().to(device=device, dtype=dtype) + mask_lat_size[:, :, :mask_len] = 1 + first_frame_mask = mask_lat_size[:, :, 0:1] + # Repeat first frame mask self.vae_scale_factor_temporal (= 4) times in the frame dimension + first_frame_mask = torch.repeat_interleave(first_frame_mask, dim=2, repeats=self.vae_scale_factor_temporal) + mask_lat_size = torch.concat([first_frame_mask, mask_lat_size[:, :, 1:]], dim=2) + mask_lat_size = mask_lat_size.view( + batch_size, -1, self.vae_scale_factor_temporal, latent_h, latent_w + ).transpose(1, 2) # [B, C = 1, 4 * T_lat, H_lat, W_lat] --> [B, C = 4, T_lat, H_lat, W_lat] + + return mask_lat_size + + def prepare_reference_image_latents( + self, + image: torch.Tensor, + batch_size: int = 1, + sample_mode: int = "argmax", + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + ) -> torch.Tensor: + # image shape: (B, C, H, W) or (B, C, T, H, W) + dtype = dtype or self.vae.dtype + if image.ndim == 4: + # Add a singleton frame dimension after the channels dimension + image = image.unsqueeze(2) + + _, _, _, height, width = image.shape + latent_height = height // self.vae_scale_factor_spatial + latent_width = width // self.vae_scale_factor_spatial + + # Encode image to latents using VAE + image = image.to(device=device, dtype=dtype) + if isinstance(generator, list): + # Like in prepare_latents, assume len(generator) == batch_size + ref_image_latents = [ + retrieve_latents(self.vae.encode(image), generator=g, sample_mode=sample_mode) for g in generator + ] + ref_image_latents = torch.cat(ref_image_latents) + else: + ref_image_latents = retrieve_latents(self.vae.encode(image), generator, sample_mode) + # Standardize latents in preparation for Wan VAE encode + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(ref_image_latents.device, ref_image_latents.dtype) + ) + latents_recip_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + ref_image_latents.device, ref_image_latents.dtype + ) + ref_image_latents = (ref_image_latents - latents_mean) * latents_recip_std + # Handle the case where we supply one image and one generator, but batch_size > 1 (e.g. generating multiple + # videos per prompt) + if ref_image_latents.shape[0] == 1 and batch_size > 1: + ref_image_latents = ref_image_latents.expand(batch_size, -1, -1, -1, -1) + + # Prepare I2V mask in latent space and prepend to the reference image latents along channel dim + reference_image_mask = self.get_i2v_mask(batch_size, 1, latent_height, latent_width, 1, None, dtype, device) + reference_image_latents = torch.cat([reference_image_mask, ref_image_latents], dim=1) + + return reference_image_latents + + def prepare_prev_segment_cond_latents( + self, + prev_segment_cond_video: Optional[torch.Tensor] = None, + background_video: Optional[torch.Tensor] = None, + mask_video: Optional[torch.Tensor] = None, + batch_size: int = 1, + segment_frame_length: int = 77, + start_frame: int = 0, + height: int = 720, + width: int = 1280, + prev_segment_cond_frames: int = 1, + task: str = "animate", + interpolation_mode: str = "bicubic", + sample_mode: str = "argmax", + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + ) -> torch.Tensor: + # prev_segment_cond_video shape: (B, C, T, H, W) in pixel space if supplied + # background_video shape: (B, C, T, H, W) (same as prev_segment_cond_video shape) + # mask_video shape: (B, 1, T, H, W) (same as prev_segment_cond_video, but with only 1 channel) + dtype = dtype or self.vae.dtype + if prev_segment_cond_video is None: + if task == "replace": + prev_segment_cond_video = background_video[:, :, :prev_segment_cond_frames].to(dtype) + else: + cond_frames_shape = (batch_size, 3, prev_segment_cond_frames, height, width) # In pixel space + prev_segment_cond_video = torch.zeros(cond_frames_shape, dtype=dtype, device=device) + + data_batch_size, channels, _, segment_height, segment_width = prev_segment_cond_video.shape + num_latent_frames = (segment_frame_length - 1) // self.vae_scale_factor_temporal + 1 + latent_height = height // self.vae_scale_factor_spatial + latent_width = width // self.vae_scale_factor_spatial + if segment_height != height or segment_width != width: + print( + f"Interpolating prev segment cond video from ({segment_width}, {segment_height}) to ({width}, {height})" + ) + # Perform a 4D (spatial) rather than a 5D (spatiotemporal) reshape, following the original code + prev_segment_cond_video = prev_segment_cond_video.transpose(1, 2).flatten(0, 1) # [B * T, C, H, W] + prev_segment_cond_video = F.interpolate( + prev_segment_cond_video, size=(height, width), mode=interpolation_mode + ) + prev_segment_cond_video = prev_segment_cond_video.unflatten(0, (batch_size, -1)).transpose(1, 2) + + # Fill the remaining part of the cond video segment with zeros (if animating) or the background video (if + # replacing). + if task == "replace": + remaining_segment = background_video[:, :, prev_segment_cond_frames:].to(dtype) + else: + remaining_segment_frames = segment_frame_length - prev_segment_cond_frames + remaining_segment = torch.zeros( + batch_size, channels, remaining_segment_frames, height, width, dtype=dtype, device=device + ) + + # Prepend the conditioning frames from the previous segment to the remaining segment video in the frame dim + prev_segment_cond_video = prev_segment_cond_video.to(dtype=dtype) + full_segment_cond_video = torch.cat([prev_segment_cond_video, remaining_segment], dim=2) + + if isinstance(generator, list): + if data_batch_size == len(generator): + prev_segment_cond_latents = [ + retrieve_latents(self.vae.encode(full_segment_cond_video[i].unsqueeze(0)), g, sample_mode) + for i, g in enumerate(generator) + ] + elif data_batch_size == 1: + # Like prepare_latents, assume len(generator) == batch_size + prev_segment_cond_latents = [ + retrieve_latents(self.vae.encode(full_segment_cond_video), g, sample_mode) for g in generator + ] + else: + raise ValueError( + f"The batch size of the prev segment video should be either {len(generator)} or 1 but is" + f" {data_batch_size}" + ) + prev_segment_cond_latents = torch.cat(prev_segment_cond_latents) + else: + prev_segment_cond_latents = retrieve_latents( + self.vae.encode(full_segment_cond_video), generator, sample_mode + ) + # Standardize latents in preparation for Wan VAE encode + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(prev_segment_cond_latents.device, prev_segment_cond_latents.dtype) + ) + latents_recip_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + prev_segment_cond_latents.device, prev_segment_cond_latents.dtype + ) + prev_segment_cond_latents = (prev_segment_cond_latents - latents_mean) * latents_recip_std + + # Prepare I2V mask + if task == "replace": + mask_video = 1 - mask_video + mask_video = mask_video.permute(0, 2, 1, 3, 4) + mask_video = mask_video.flatten(0, 1) + mask_video = F.interpolate(mask_video, size=(latent_height, latent_width), mode="nearest") + mask_pixel_values = mask_video.unflatten(0, (batch_size, -1)) + mask_pixel_values = mask_pixel_values.permute(0, 2, 1, 3, 4) # output shape: [B, C = 1, T, H_lat, W_lat] + else: + mask_pixel_values = None + prev_segment_cond_mask = self.get_i2v_mask( + batch_size, + num_latent_frames, + latent_height, + latent_width, + mask_len=prev_segment_cond_frames if start_frame > 0 else 0, + mask_pixel_values=mask_pixel_values, + dtype=dtype, + device=device, + ) + + # Prepend cond I2V mask to prev segment cond latents along channel dimension + prev_segment_cond_latents = torch.cat([prev_segment_cond_mask, prev_segment_cond_latents], dim=1) + return prev_segment_cond_latents + + def prepare_pose_latents( + self, + pose_video: torch.Tensor, + batch_size: int = 1, + sample_mode: int = "argmax", + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + ) -> torch.Tensor: + # pose_video shape: (B, C, T, H, W) + pose_video = pose_video.to(device=device, dtype=dtype if dtype is not None else self.vae.dtype) + if isinstance(generator, list): + pose_latents = [ + retrieve_latents(self.vae.encode(pose_video), generator=g, sample_mode=sample_mode) for g in generator + ] + pose_latents = torch.cat(pose_latents) + else: + pose_latents = retrieve_latents(self.vae.encode(pose_video), generator, sample_mode) + # Standardize latents in preparation for Wan VAE encode + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(pose_latents.device, pose_latents.dtype) + ) + latents_recip_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + pose_latents.device, pose_latents.dtype + ) + pose_latents = (pose_latents - latents_mean) * latents_recip_std + if pose_latents.shape[0] == 1 and batch_size > 1: + pose_latents = pose_latents.expand(batch_size, -1, -1, -1, -1) + return pose_latents + + def prepare_latents( + self, + batch_size: int, + num_channels_latents: int = 16, + height: int = 720, + width: int = 1280, + num_frames: int = 77, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + ) -> Tuple[torch.Tensor, torch.Tensor, torch.Tensor]: + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + latent_height = height // self.vae_scale_factor_spatial + latent_width = width // self.vae_scale_factor_spatial + + shape = (batch_size, num_channels_latents, num_latent_frames + 1, latent_height, latent_width) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device=device, dtype=dtype) + + return latents + + def pad_video_frames(self, frames: List[Any], num_target_frames: int) -> List[Any]: + """ + Pads an array-like video `frames` to `num_target_frames` using a "reflect"-like strategy. The frame dimension + is assumed to be the first dimension. In the 1D case, we can visualize this strategy as follows: + + pad_video_frames([1, 2, 3, 4, 5], 10) -> [1, 2, 3, 4, 5, 4, 3, 2, 1, 2] + """ + idx = 0 + flip = False + target_frames = [] + while len(target_frames) < num_target_frames: + target_frames.append(deepcopy(frames[idx])) + if flip: + idx -= 1 + else: + idx += 1 + if idx == 0 or idx == len(frames) - 1: + flip = not flip + + return target_frames + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image: PipelineImageInput, + pose_video: List[PIL.Image.Image], + face_video: List[PIL.Image.Image], + background_video: Optional[List[PIL.Image.Image]] = None, + mask_video: Optional[List[PIL.Image.Image]] = None, + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + height: int = 720, + width: int = 1280, + segment_frame_length: int = 77, + num_inference_steps: int = 20, + mode: str = "animate", + prev_segment_conditioning_frames: int = 1, + motion_encode_batch_size: Optional[int] = None, + guidance_scale: float = 1.0, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + image_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + The call function to the pipeline for generation. + + Args: + image (`PipelineImageInput`): + The input character image to condition the generation on. Must be an image, a list of images or a + `torch.Tensor`. + pose_video (`List[PIL.Image.Image]`): + The input pose video to condition the generation on. Must be a list of PIL images. + face_video (`List[PIL.Image.Image]`): + The input face video to condition the generation on. Must be a list of PIL images. + background_video (`List[PIL.Image.Image]`, *optional*): + When mode is `"replace"`, the input background video to condition the generation on. Must be a list of + PIL images. + mask_video (`List[PIL.Image.Image]`, *optional*): + When mode is `"replace"`, the input mask video to condition the generation on. Must be a list of PIL + images. + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + mode (`str`, defaults to `"animation"`): + The mode of the generation. Choose between `"animate"` and `"replace"`. + prev_segment_conditioning_frames (`int`, defaults to `1`): + The number of frames from the previous video segment to be used for temporal guidance. Recommended to + be 1 or 5. In general, should be 4N + 1, where N is a non-negative integer. + motion_encode_batch_size (`int`, *optional*): + The batch size for batched encoding of the face video via the motion encoder. This allows trading off + inference speed for lower memory usage by setting a smaller batch size. Will default to + `self.transformer.config.motion_encoder_batch_size` if not set. + height (`int`, defaults to `720`): + The height of the generated video. + width (`int`, defaults to `1280`): + The width of the generated video. + segment_frame_length (`int`, defaults to `77`): + The number of frames in each generated video segment. The total frames of video generated will be equal + to the number of frames in `pose_video`; we will generate the video in segments until we have hit this + length. In general, should be 4N + 1, where N is a non-negative integer. + num_inference_steps (`int`, defaults to `20`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `1.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. By default, CFG is not used in Wan + Animate inference. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `negative_prompt` input argument. + image_embeds (`torch.Tensor`, *optional*): + Pre-generated image embeddings. Can be used to easily tweak image inputs (weighting). If not provided, + image embeddings are generated from the `image` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`WanPipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, defaults to `512`): + The maximum sequence length of the text encoder. If the prompt is longer than this, it will be + truncated. If the prompt is shorter, it will be padded to this length. + + Examples: + + Returns: + [`~WanPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`WanPipelineOutput`] is returned, otherwise a `tuple` is returned where + the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + image, + pose_video, + face_video, + background_video, + mask_video, + height, + width, + prompt_embeds, + negative_prompt_embeds, + image_embeds, + callback_on_step_end_tensor_inputs, + mode, + prev_segment_conditioning_frames, + ) + + if segment_frame_length % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`segment_frame_length - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the" + f" nearest number." + ) + segment_frame_length = ( + segment_frame_length // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + ) + segment_frame_length = max(segment_frame_length, 1) + + self._guidance_scale = guidance_scale + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # As we generate in segments of `segment_frame_length`, set the target frame length to be the least multiple + # of the effective segment length greater than or equal to the length of `pose_video`. + cond_video_frames = len(pose_video) + effective_segment_length = segment_frame_length - prev_segment_conditioning_frames + last_segment_frames = (cond_video_frames - prev_segment_conditioning_frames) % effective_segment_length + if last_segment_frames == 0: + num_padding_frames = 0 + else: + num_padding_frames = effective_segment_length - last_segment_frames + num_target_frames = cond_video_frames + num_padding_frames + num_segments = num_target_frames // effective_segment_length + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + transformer_dtype = self.transformer.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # 4. Preprocess and encode the reference (character) image + image_height, image_width = self.video_processor.get_default_height_width(image) + if image_height != height or image_width != width: + logger.warning(f"Reshaping reference image from ({image_width}, {image_height}) to ({width}, {height})") + image_pixels = self.vae_image_processor.preprocess(image, height=height, width=width, resize_mode="fill").to( + device, dtype=torch.float32 + ) + + # Get CLIP features from the reference image + if image_embeds is None: + image_embeds = self.encode_image(image, device) + image_embeds = image_embeds.repeat(batch_size * num_videos_per_prompt, 1, 1) + image_embeds = image_embeds.to(transformer_dtype) + + # 5. Encode conditioning videos (pose, face) + pose_video = self.pad_video_frames(pose_video, num_target_frames) + face_video = self.pad_video_frames(face_video, num_target_frames) + + # TODO: also support np.ndarray input (e.g. from decord like the original implementation?) + pose_video_width, pose_video_height = pose_video[0].size + if pose_video_height != height or pose_video_width != width: + logger.warning( + f"Reshaping pose video from ({pose_video_width}, {pose_video_height}) to ({width}, {height})" + ) + pose_video = self.video_processor.preprocess_video(pose_video, height=height, width=width).to( + device, dtype=torch.float32 + ) + + face_video_width, face_video_height = face_video[0].size + expected_face_size = self.transformer.config.motion_encoder_size + if face_video_width != expected_face_size or face_video_height != expected_face_size: + logger.warning( + f"Reshaping face video from ({face_video_width}, {face_video_height}) to ({expected_face_size}," + f" {expected_face_size})" + ) + face_video = self.video_processor.preprocess_video( + face_video, height=expected_face_size, width=expected_face_size + ).to(device, dtype=torch.float32) + + if mode == "replace": + background_video = self.pad_video_frames(background_video, num_target_frames) + mask_video = self.pad_video_frames(mask_video, num_target_frames) + + background_video = self.video_processor.preprocess_video(background_video, height=height, width=width).to( + device, dtype=torch.float32 + ) + mask_video = self.video_processor_for_mask.preprocess_video(mask_video, height=height, width=width).to( + device, dtype=torch.float32 + ) + + # 6. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 7. Prepare latent variables which stay constant for all inference segments + num_channels_latents = self.vae.config.z_dim + + # Get VAE-encoded latents of the reference (character) image + reference_image_latents = self.prepare_reference_image_latents( + image_pixels, batch_size * num_videos_per_prompt, generator=generator, device=device + ) + + # 8. Loop over video inference segments + start = 0 + end = segment_frame_length # Data space frames, not latent frames + all_out_frames = [] + out_frames = None + + for _ in range(num_segments): + assert start + prev_segment_conditioning_frames < cond_video_frames + + # Sample noisy latents from prior for the current inference segment + latents = self.prepare_latents( + batch_size * num_videos_per_prompt, + num_channels_latents=num_channels_latents, + height=height, + width=width, + num_frames=segment_frame_length, + dtype=torch.float32, + device=device, + generator=generator, + latents=latents if start == 0 else None, # Only use pre-calculated latents for first segment + ) + + pose_video_segment = pose_video[:, :, start:end] + face_video_segment = face_video[:, :, start:end] + + face_video_segment = face_video_segment.expand(batch_size * num_videos_per_prompt, -1, -1, -1, -1) + face_video_segment = face_video_segment.to(dtype=transformer_dtype) + + if start > 0: + prev_segment_cond_video = out_frames[:, :, -prev_segment_conditioning_frames:].clone().detach() + else: + prev_segment_cond_video = None + + if mode == "replace": + background_video_segment = background_video[:, :, start:end] + mask_video_segment = mask_video[:, :, start:end] + + background_video_segment = background_video_segment.expand( + batch_size * num_videos_per_prompt, -1, -1, -1, -1 + ) + mask_video_segment = mask_video_segment.expand(batch_size * num_videos_per_prompt, -1, -1, -1, -1) + else: + background_video_segment = None + mask_video_segment = None + + pose_latents = self.prepare_pose_latents( + pose_video_segment, batch_size * num_videos_per_prompt, generator=generator, device=device + ) + pose_latents = pose_latents.to(dtype=transformer_dtype) + + prev_segment_cond_latents = self.prepare_prev_segment_cond_latents( + prev_segment_cond_video, + background_video=background_video_segment, + mask_video=mask_video_segment, + batch_size=batch_size * num_videos_per_prompt, + segment_frame_length=segment_frame_length, + start_frame=start, + height=height, + width=width, + prev_segment_cond_frames=prev_segment_conditioning_frames, + task=mode, + generator=generator, + device=device, + ) + + # Concatenate the reference latents in the frame dimension + reference_latents = torch.cat([reference_image_latents, prev_segment_cond_latents], dim=2) + + # 8.1 Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + self._current_timestep = t + + # Concatenate the reference image + prev segment conditioning in the channel dim + latent_model_input = torch.cat([latents, reference_latents], dim=1).to(transformer_dtype) + timestep = t.expand(latents.shape[0]) + + with self.transformer.cache_context("cond"): + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + encoder_hidden_states_image=image_embeds, + pose_hidden_states=pose_latents, + face_pixel_values=face_video_segment, + motion_encode_batch_size=motion_encode_batch_size, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + + if self.do_classifier_free_guidance: + # Blank out face for unconditional guidance (set all pixels to -1) + face_pixel_values_uncond = face_video_segment * 0 - 1 + with self.transformer.cache_context("uncond"): + noise_uncond = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + encoder_hidden_states_image=image_embeds, + pose_hidden_states=pose_latents, + face_pixel_values=face_pixel_values_uncond, + motion_encode_batch_size=motion_encode_batch_size, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + guidance_scale * (noise_pred - noise_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + latents = latents.to(self.vae.dtype) + # Destandardize latents in preparation for Wan VAE decoding + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_recip_std = 1.0 / torch.tensor(self.vae.config.latents_std).view( + 1, self.vae.config.z_dim, 1, 1, 1 + ).to(latents.device, latents.dtype) + latents = latents / latents_recip_std + latents_mean + # Skip the first latent frame (used for conditioning) + out_frames = self.vae.decode(latents[:, :, 1:], return_dict=False)[0] + + if start > 0: + out_frames = out_frames[:, :, prev_segment_conditioning_frames:] + all_out_frames.append(out_frames) + + start += effective_segment_length + end += effective_segment_length + + # Reset scheduler timesteps / state for next denoising loop + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + self._current_timestep = None + assert start + prev_segment_conditioning_frames >= cond_video_frames + + if not output_type == "latent": + video = torch.cat(all_out_frames, dim=2)[:, :, :cond_video_frames] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return WanPipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_i2v.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_i2v.py new file mode 100644 index 0000000000000000000000000000000000000000..b7fd0b05980f101a382df787b2bcd7b39d3cedeb --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_i2v.py @@ -0,0 +1,824 @@ +# Copyright 2025 The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +from typing import Any, Callable, Dict, List, Optional, Tuple, Union + +import PIL +import regex as re +import torch +from transformers import AutoTokenizer, CLIPImageProcessor, CLIPVisionModel, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput +from ...loaders import WanLoraLoaderMixin +from ...models import AutoencoderKLWan, WanTransformer3DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import WanPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + +EXAMPLE_DOC_STRING = """ + Examples: + ```python + >>> import torch + >>> import numpy as np + >>> from diffusers import AutoencoderKLWan, WanImageToVideoPipeline + >>> from diffusers.utils import export_to_video, load_image + >>> from transformers import CLIPVisionModel + + >>> # Available models: Wan-AI/Wan2.1-I2V-14B-480P-Diffusers, Wan-AI/Wan2.1-I2V-14B-720P-Diffusers + >>> model_id = "Wan-AI/Wan2.1-I2V-14B-480P-Diffusers" + >>> image_encoder = CLIPVisionModel.from_pretrained( + ... model_id, subfolder="image_encoder", torch_dtype=torch.float32 + ... ) + >>> vae = AutoencoderKLWan.from_pretrained(model_id, subfolder="vae", torch_dtype=torch.float32) + >>> pipe = WanImageToVideoPipeline.from_pretrained( + ... model_id, vae=vae, image_encoder=image_encoder, torch_dtype=torch.bfloat16 + ... ) + >>> pipe.to("cuda") + + >>> image = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/astronaut.jpg" + ... ) + >>> max_area = 480 * 832 + >>> aspect_ratio = image.height / image.width + >>> mod_value = pipe.vae_scale_factor_spatial * pipe.transformer.config.patch_size[1] + >>> height = round(np.sqrt(max_area * aspect_ratio)) // mod_value * mod_value + >>> width = round(np.sqrt(max_area / aspect_ratio)) // mod_value * mod_value + >>> image = image.resize((width, height)) + >>> prompt = ( + ... "An astronaut hatching from an egg, on the surface of the moon, the darkness and depth of space realised in " + ... "the background. High quality, ultrarealistic detail and breath-taking movie-like camera shot." + ... ) + >>> negative_prompt = "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards" + + >>> output = pipe( + ... image=image, + ... prompt=prompt, + ... negative_prompt=negative_prompt, + ... height=height, + ... width=width, + ... num_frames=81, + ... guidance_scale=5.0, + ... ).frames[0] + >>> export_to_video(output, "output.mp4", fps=16) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class WanImageToVideoPipeline(DiffusionPipeline, WanLoraLoaderMixin): + r""" + Pipeline for image-to-video generation using Wan. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + tokenizer ([`T5Tokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + image_encoder ([`CLIPVisionModel`]): + [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPVisionModel), specifically + the + [clip-vit-huge-patch14](https://github.com/mlfoundations/open_clip/blob/main/docs/PRETRAINED.md#vit-h14-xlm-roberta-large) + variant. + transformer ([`WanTransformer3DModel`]): + Conditional Transformer to denoise the input latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + transformer_2 ([`WanTransformer3DModel`], *optional*): + Conditional Transformer to denoise the input latents during the low-noise stage. In two-stage denoising, + `transformer` handles high-noise stages and `transformer_2` handles low-noise stages. If not provided, only + `transformer` is used. + boundary_ratio (`float`, *optional*, defaults to `None`): + Ratio of total timesteps to use as the boundary for switching between transformers in two-stage denoising. + The actual boundary timestep is calculated as `boundary_ratio * num_train_timesteps`. When provided, + `transformer` handles timesteps >= boundary_timestep and `transformer_2` handles timesteps < + boundary_timestep. If `None`, only `transformer` is used for the entire denoising process. + """ + + model_cpu_offload_seq = "text_encoder->image_encoder->transformer->transformer_2->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + _optional_components = ["transformer", "transformer_2", "image_encoder", "image_processor"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + vae: AutoencoderKLWan, + scheduler: FlowMatchEulerDiscreteScheduler, + image_processor: CLIPImageProcessor = None, + image_encoder: CLIPVisionModel = None, + transformer: WanTransformer3DModel = None, + transformer_2: WanTransformer3DModel = None, + boundary_ratio: Optional[float] = None, + expand_timesteps: bool = False, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + image_encoder=image_encoder, + transformer=transformer, + scheduler=scheduler, + image_processor=image_processor, + transformer_2=transformer_2, + ) + self.register_to_config(boundary_ratio=boundary_ratio, expand_timesteps=expand_timesteps) + + self.vae_scale_factor_temporal = self.vae.config.scale_factor_temporal if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = self.vae.config.scale_factor_spatial if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + self.image_processor = image_processor + + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 512, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + def encode_image( + self, + image: PipelineImageInput, + device: Optional[torch.device] = None, + ): + device = device or self._execution_device + image = self.image_processor(images=image, return_tensors="pt").to(device) + image_embeds = self.image_encoder(**image, output_hidden_states=True) + return image_embeds.hidden_states[-2] + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + image, + height, + width, + prompt_embeds=None, + negative_prompt_embeds=None, + image_embeds=None, + callback_on_step_end_tensor_inputs=None, + guidance_scale_2=None, + ): + if image is not None and image_embeds is not None: + raise ValueError( + f"Cannot forward both `image`: {image} and `image_embeds`: {image_embeds}. Please make sure to" + " only forward one of the two." + ) + if image is None and image_embeds is None: + raise ValueError( + "Provide either `image` or `prompt_embeds`. Cannot leave both `image` and `image_embeds` undefined." + ) + if image is not None and not isinstance(image, torch.Tensor) and not isinstance(image, PIL.Image.Image): + raise ValueError(f"`image` has to be of type `torch.Tensor` or `PIL.Image.Image` but is {type(image)}") + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + if self.config.boundary_ratio is None and guidance_scale_2 is not None: + raise ValueError("`guidance_scale_2` is only supported when the pipeline's `boundary_ratio` is not None.") + + if self.config.boundary_ratio is not None and image_embeds is not None: + raise ValueError("Cannot forward `image_embeds` when the pipeline's `boundary_ratio` is not configured.") + + def prepare_latents( + self, + image: PipelineImageInput, + batch_size: int, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 81, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + last_image: Optional[torch.Tensor] = None, + ) -> Tuple[torch.Tensor, torch.Tensor]: + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + latent_height = height // self.vae_scale_factor_spatial + latent_width = width // self.vae_scale_factor_spatial + + shape = (batch_size, num_channels_latents, num_latent_frames, latent_height, latent_width) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + latents = latents.to(device=device, dtype=dtype) + + image = image.unsqueeze(2) # [batch_size, channels, 1, height, width] + + if self.config.expand_timesteps: + video_condition = image + + elif last_image is None: + video_condition = torch.cat( + [image, image.new_zeros(image.shape[0], image.shape[1], num_frames - 1, height, width)], dim=2 + ) + else: + last_image = last_image.unsqueeze(2) + video_condition = torch.cat( + [image, image.new_zeros(image.shape[0], image.shape[1], num_frames - 2, height, width), last_image], + dim=2, + ) + video_condition = video_condition.to(device=device, dtype=self.vae.dtype) + + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + + if isinstance(generator, list): + latent_condition = [ + retrieve_latents(self.vae.encode(video_condition), sample_mode="argmax") for _ in generator + ] + latent_condition = torch.cat(latent_condition) + else: + latent_condition = retrieve_latents(self.vae.encode(video_condition), sample_mode="argmax") + latent_condition = latent_condition.repeat(batch_size, 1, 1, 1, 1) + + latent_condition = latent_condition.to(dtype) + latent_condition = (latent_condition - latents_mean) * latents_std + + if self.config.expand_timesteps: + first_frame_mask = torch.ones( + 1, 1, num_latent_frames, latent_height, latent_width, dtype=dtype, device=device + ) + first_frame_mask[:, :, 0] = 0 + return latents, latent_condition, first_frame_mask + + mask_lat_size = torch.ones(batch_size, 1, num_frames, latent_height, latent_width) + + if last_image is None: + mask_lat_size[:, :, list(range(1, num_frames))] = 0 + else: + mask_lat_size[:, :, list(range(1, num_frames - 1))] = 0 + first_frame_mask = mask_lat_size[:, :, 0:1] + first_frame_mask = torch.repeat_interleave(first_frame_mask, dim=2, repeats=self.vae_scale_factor_temporal) + mask_lat_size = torch.concat([first_frame_mask, mask_lat_size[:, :, 1:, :]], dim=2) + mask_lat_size = mask_lat_size.view(batch_size, -1, self.vae_scale_factor_temporal, latent_height, latent_width) + mask_lat_size = mask_lat_size.transpose(1, 2) + mask_lat_size = mask_lat_size.to(latent_condition.device) + + return latents, torch.concat([mask_lat_size, latent_condition], dim=1) + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image: PipelineImageInput, + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + height: int = 480, + width: int = 832, + num_frames: int = 81, + num_inference_steps: int = 50, + guidance_scale: float = 5.0, + guidance_scale_2: Optional[float] = None, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + image_embeds: Optional[torch.Tensor] = None, + last_image: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + The call function to the pipeline for generation. + + Args: + image (`PipelineImageInput`): + The input image to condition the generation on. Must be an image, a list of images or a `torch.Tensor`. + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + height (`int`, defaults to `480`): + The height of the generated video. + width (`int`, defaults to `832`): + The width of the generated video. + num_frames (`int`, defaults to `81`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `5.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + guidance_scale_2 (`float`, *optional*, defaults to `None`): + Guidance scale for the low-noise stage transformer (`transformer_2`). If `None` and the pipeline's + `boundary_ratio` is not None, uses the same value as `guidance_scale`. Only used when `transformer_2` + and the pipeline's `boundary_ratio` are not None. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `negative_prompt` input argument. + image_embeds (`torch.Tensor`, *optional*): + Pre-generated image embeddings. Can be used to easily tweak image inputs (weighting). If not provided, + image embeddings are generated from the `image` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`WanPipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, defaults to `512`): + The maximum sequence length of the text encoder. If the prompt is longer than this, it will be + truncated. If the prompt is shorter, it will be padded to this length. + + Examples: + + Returns: + [`~WanPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`WanPipelineOutput`] is returned, otherwise a `tuple` is returned where + the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + image, + height, + width, + prompt_embeds, + negative_prompt_embeds, + image_embeds, + callback_on_step_end_tensor_inputs, + guidance_scale_2, + ) + + if num_frames % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`num_frames - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the nearest number." + ) + num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + num_frames = max(num_frames, 1) + + if self.config.boundary_ratio is not None and guidance_scale_2 is None: + guidance_scale_2 = guidance_scale + + self._guidance_scale = guidance_scale + self._guidance_scale_2 = guidance_scale_2 + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + # Encode image embedding + transformer_dtype = self.transformer.dtype if self.transformer is not None else self.transformer_2.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # only wan 2.1 i2v transformer accepts image_embeds + if self.transformer is not None and self.transformer.config.image_dim is not None: + if image_embeds is None: + if last_image is None: + image_embeds = self.encode_image(image, device) + else: + image_embeds = self.encode_image([image, last_image], device) + image_embeds = image_embeds.repeat(batch_size, 1, 1) + image_embeds = image_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + num_channels_latents = self.vae.config.z_dim + image = self.video_processor.preprocess(image, height=height, width=width).to(device, dtype=torch.float32) + if last_image is not None: + last_image = self.video_processor.preprocess(last_image, height=height, width=width).to( + device, dtype=torch.float32 + ) + + latents_outputs = self.prepare_latents( + image, + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + num_frames, + torch.float32, + device, + generator, + latents, + last_image, + ) + if self.config.expand_timesteps: + # wan 2.2 5b i2v use firt_frame_mask to mask timesteps + latents, condition, first_frame_mask = latents_outputs + else: + latents, condition = latents_outputs + + # 6. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + + if self.config.boundary_ratio is not None: + boundary_timestep = self.config.boundary_ratio * self.scheduler.config.num_train_timesteps + else: + boundary_timestep = None + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + self._current_timestep = t + + if boundary_timestep is None or t >= boundary_timestep: + # wan2.1 or high-noise stage in wan2.2 + current_model = self.transformer + current_guidance_scale = guidance_scale + else: + # low-noise stage in wan2.2 + current_model = self.transformer_2 + current_guidance_scale = guidance_scale_2 + + if self.config.expand_timesteps: + latent_model_input = (1 - first_frame_mask) * condition + first_frame_mask * latents + latent_model_input = latent_model_input.to(transformer_dtype) + + # seq_len: num_latent_frames * (latent_height // patch_size) * (latent_width // patch_size) + temp_ts = (first_frame_mask[0][0][:, ::2, ::2] * t).flatten() + # batch_size, seq_len + timestep = temp_ts.unsqueeze(0).expand(latents.shape[0], -1) + else: + latent_model_input = torch.cat([latents, condition], dim=1).to(transformer_dtype) + timestep = t.expand(latents.shape[0]) + + with current_model.cache_context("cond"): + noise_pred = current_model( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + encoder_hidden_states_image=image_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + + if self.do_classifier_free_guidance: + with current_model.cache_context("uncond"): + noise_uncond = current_model( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + encoder_hidden_states_image=image_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + current_guidance_scale * (noise_pred - noise_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + self._current_timestep = None + + if self.config.expand_timesteps: + latents = (1 - first_frame_mask) * condition + first_frame_mask * latents + + if not output_type == "latent": + latents = latents.to(self.vae.dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video = self.vae.decode(latents, return_dict=False)[0] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return WanPipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_vace.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_vace.py new file mode 100644 index 0000000000000000000000000000000000000000..351ae2e70563c1474fa293d9d0a4f1492f749f74 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_vace.py @@ -0,0 +1,1045 @@ +# Copyright 2025 The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +from typing import Any, Callable, Dict, List, Optional, Union + +import PIL.Image +import regex as re +import torch +from transformers import AutoTokenizer, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...image_processor import PipelineImageInput +from ...loaders import WanLoraLoaderMixin +from ...models import AutoencoderKLWan, WanVACETransformer3DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import WanPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """ + Examples: + ```python + >>> import torch + >>> import PIL.Image + >>> from diffusers import AutoencoderKLWan, WanVACEPipeline + >>> from diffusers.schedulers.scheduling_unipc_multistep import UniPCMultistepScheduler + >>> from diffusers.utils import export_to_video, load_image + def prepare_video_and_mask(first_img: PIL.Image.Image, last_img: PIL.Image.Image, height: int, width: int, num_frames: int): + first_img = first_img.resize((width, height)) + last_img = last_img.resize((width, height)) + frames = [] + frames.append(first_img) + # Ideally, this should be 127.5 to match original code, but they perform computation on numpy arrays + # whereas we are passing PIL images. If you choose to pass numpy arrays, you can set it to 127.5 to + # match the original code. + frames.extend([PIL.Image.new("RGB", (width, height), (128, 128, 128))] * (num_frames - 2)) + frames.append(last_img) + mask_black = PIL.Image.new("L", (width, height), 0) + mask_white = PIL.Image.new("L", (width, height), 255) + mask = [mask_black, *[mask_white] * (num_frames - 2), mask_black] + return frames, mask + + >>> # Available checkpoints: Wan-AI/Wan2.1-VACE-1.3B-diffusers, Wan-AI/Wan2.1-VACE-14B-diffusers + >>> model_id = "Wan-AI/Wan2.1-VACE-1.3B-diffusers" + >>> vae = AutoencoderKLWan.from_pretrained(model_id, subfolder="vae", torch_dtype=torch.float32) + >>> pipe = WanVACEPipeline.from_pretrained(model_id, vae=vae, torch_dtype=torch.bfloat16) + >>> flow_shift = 3.0 # 5.0 for 720P, 3.0 for 480P + >>> pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=flow_shift) + >>> pipe.to("cuda") + + >>> prompt = "CG animation style, a small blue bird takes off from the ground, flapping its wings. The bird's feathers are delicate, with a unique pattern on its chest. The background shows a blue sky with white clouds under bright sunshine. The camera follows the bird upward, capturing its flight and the vastness of the sky from a close-up, low-angle perspective." + >>> negative_prompt = "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards" + >>> first_frame = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/flf2v_input_first_frame.png" + ... ) + >>> last_frame = load_image( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/flf2v_input_last_frame.png>>> " + ... ) + + >>> height = 512 + >>> width = 512 + >>> num_frames = 81 + >>> video, mask = prepare_video_and_mask(first_frame, last_frame, height, width, num_frames) + + >>> output = pipe( + ... video=video, + ... mask=mask, + ... prompt=prompt, + ... negative_prompt=negative_prompt, + ... height=height, + ... width=width, + ... num_frames=num_frames, + ... num_inference_steps=30, + ... guidance_scale=5.0, + ... generator=torch.Generator().manual_seed(42), + ... ).frames[0] + >>> export_to_video(output, "output.mp4", fps=16) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class WanVACEPipeline(DiffusionPipeline, WanLoraLoaderMixin): + r""" + Pipeline for controllable generation using Wan. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + tokenizer ([`T5Tokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + transformer ([`WanVACETransformer3DModel`], *optional*): + Conditional Transformer to denoise the input latents during the high-noise stage. In two-stage denoising, + `transformer` handles high-noise stages and `transformer_2` handles low-noise stages. At least one of + `transformer` or `transformer_2` must be provided. + transformer_2 ([`WanVACETransformer3DModel`], *optional*): + Conditional Transformer to denoise the input latents during the low-noise stage. In two-stage denoising, + `transformer` handles high-noise stages and `transformer_2` handles low-noise stages. At least one of + `transformer` or `transformer_2` must be provided. + boundary_ratio (`float`, *optional*, defaults to `None`): + Ratio of total timesteps to use as the boundary for switching between transformers in two-stage denoising. + The actual boundary timestep is calculated as `boundary_ratio * num_train_timesteps`. When provided, + `transformer` handles timesteps >= boundary_timestep and `transformer_2` handles timesteps < + boundary_timestep. If `None`, only the available transformer is used for the entire denoising process. + """ + + model_cpu_offload_seq = "text_encoder->transformer->transformer_2->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + _optional_components = ["transformer", "transformer_2"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + vae: AutoencoderKLWan, + scheduler: FlowMatchEulerDiscreteScheduler, + transformer: WanVACETransformer3DModel = None, + transformer_2: WanVACETransformer3DModel = None, + boundary_ratio: Optional[float] = None, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + transformer=transformer, + transformer_2=transformer_2, + scheduler=scheduler, + ) + self.register_to_config(boundary_ratio=boundary_ratio) + self.vae_scale_factor_temporal = 2 ** sum(self.vae.temperal_downsample) if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = 2 ** len(self.vae.temperal_downsample) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + height, + width, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + video=None, + mask=None, + reference_images=None, + guidance_scale_2=None, + ): + if self.transformer is not None: + base = self.vae_scale_factor_spatial * self.transformer.config.patch_size[1] + elif self.transformer_2 is not None: + base = self.vae_scale_factor_spatial * self.transformer_2.config.patch_size[1] + else: + raise ValueError( + "`transformer` or `transformer_2` component must be set in order to run inference with this pipeline" + ) + + if height % base != 0 or width % base != 0: + raise ValueError(f"`height` and `width` have to be divisible by {base} but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + if self.config.boundary_ratio is None and guidance_scale_2 is not None: + raise ValueError("`guidance_scale_2` is only supported when the pipeline's `boundary_ratio` is not None.") + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + if video is not None: + if mask is not None: + if len(video) != len(mask): + raise ValueError( + f"Length of `video` {len(video)} and `mask` {len(mask)} do not match. Please make sure that" + " they have the same length." + ) + if reference_images is not None: + is_pil_image = isinstance(reference_images, PIL.Image.Image) + is_list_of_pil_images = isinstance(reference_images, list) and all( + isinstance(ref_img, PIL.Image.Image) for ref_img in reference_images + ) + is_list_of_list_of_pil_images = isinstance(reference_images, list) and all( + isinstance(ref_img, list) and all(isinstance(ref_img_, PIL.Image.Image) for ref_img_ in ref_img) + for ref_img in reference_images + ) + if not (is_pil_image or is_list_of_pil_images or is_list_of_list_of_pil_images): + raise ValueError( + "`reference_images` has to be of type `PIL.Image.Image` or `list` of `PIL.Image.Image`, or " + "`list` of `list` of `PIL.Image.Image`, but is {type(reference_images)}" + ) + if is_list_of_list_of_pil_images and len(reference_images) != 1: + raise ValueError( + "The pipeline only supports generating one video at a time at the moment. When passing a list " + "of list of reference images, where the outer list corresponds to the batch size and the inner " + "list corresponds to list of conditioning images per video, please make sure to only pass " + "one inner list of reference images (i.e., `[[, , ...]]`" + ) + elif mask is not None: + raise ValueError("`mask` can only be passed if `video` is passed as well.") + + def preprocess_conditions( + self, + video: Optional[List[PipelineImageInput]] = None, + mask: Optional[List[PipelineImageInput]] = None, + reference_images: Optional[Union[PIL.Image.Image, List[PIL.Image.Image], List[List[PIL.Image.Image]]]] = None, + batch_size: int = 1, + height: int = 480, + width: int = 832, + num_frames: int = 81, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + ): + if video is not None: + base = self.vae_scale_factor_spatial * ( + self.transformer.config.patch_size[1] + if self.transformer is not None + else self.transformer_2.config.patch_size[1] + ) + video_height, video_width = self.video_processor.get_default_height_width(video[0]) + + if video_height * video_width > height * width: + scale = min(width / video_width, height / video_height) + video_height, video_width = int(video_height * scale), int(video_width * scale) + + if video_height % base != 0 or video_width % base != 0: + logger.warning( + f"Video height and width should be divisible by {base}, but got {video_height} and {video_width}. " + ) + video_height = (video_height // base) * base + video_width = (video_width // base) * base + + assert video_height * video_width <= height * width + + video = self.video_processor.preprocess_video(video, video_height, video_width) + image_size = (video_height, video_width) # Use the height/width of video (with possible rescaling) + else: + video = torch.zeros(batch_size, 3, num_frames, height, width, dtype=dtype, device=device) + image_size = (height, width) # Use the height/width provider by user + + if mask is not None: + mask = self.video_processor.preprocess_video(mask, image_size[0], image_size[1]) + mask = torch.clamp((mask + 1) / 2, min=0, max=1) + else: + mask = torch.ones_like(video) + + video = video.to(dtype=dtype, device=device) + mask = mask.to(dtype=dtype, device=device) + + # Make a list of list of images where the outer list corresponds to video batch size and the inner list + # corresponds to list of conditioning images per video + if reference_images is None or isinstance(reference_images, PIL.Image.Image): + reference_images = [[reference_images] for _ in range(video.shape[0])] + elif isinstance(reference_images, (list, tuple)) and isinstance(next(iter(reference_images)), PIL.Image.Image): + reference_images = [reference_images] + elif ( + isinstance(reference_images, (list, tuple)) + and isinstance(next(iter(reference_images)), list) + and isinstance(next(iter(reference_images[0])), PIL.Image.Image) + ): + reference_images = reference_images + else: + raise ValueError( + "`reference_images` has to be of type `PIL.Image.Image` or `list` of `PIL.Image.Image`, or " + "`list` of `list` of `PIL.Image.Image`, but is {type(reference_images)}" + ) + + if video.shape[0] != len(reference_images): + raise ValueError( + f"Batch size of `video` {video.shape[0]} and length of `reference_images` {len(reference_images)} does not match." + ) + + ref_images_lengths = [len(reference_images_batch) for reference_images_batch in reference_images] + if any(l != ref_images_lengths[0] for l in ref_images_lengths): + raise ValueError( + f"All batches of `reference_images` should have the same length, but got {ref_images_lengths}. Support for this " + "may be added in the future." + ) + + reference_images_preprocessed = [] + for i, reference_images_batch in enumerate(reference_images): + preprocessed_images = [] + for j, image in enumerate(reference_images_batch): + if image is None: + continue + image = self.video_processor.preprocess(image, None, None) + img_height, img_width = image.shape[-2:] + scale = min(image_size[0] / img_height, image_size[1] / img_width) + new_height, new_width = int(img_height * scale), int(img_width * scale) + resized_image = torch.nn.functional.interpolate( + image, size=(new_height, new_width), mode="bilinear", align_corners=False + ).squeeze(0) # [C, H, W] + top = (image_size[0] - new_height) // 2 + left = (image_size[1] - new_width) // 2 + canvas = torch.ones(3, *image_size, device=device, dtype=dtype) + canvas[:, top : top + new_height, left : left + new_width] = resized_image + preprocessed_images.append(canvas) + reference_images_preprocessed.append(preprocessed_images) + + return video, mask, reference_images_preprocessed + + def prepare_video_latents( + self, + video: torch.Tensor, + mask: torch.Tensor, + reference_images: Optional[List[List[torch.Tensor]]] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + device: Optional[torch.device] = None, + ) -> torch.Tensor: + device = device or self._execution_device + + if isinstance(generator, list): + # TODO: support this + raise ValueError("Passing a list of generators is not yet supported. This may be supported in the future.") + + if reference_images is None: + # For each batch of video, we set no re + # ference image (as one or more can be passed by user) + reference_images = [[None] for _ in range(video.shape[0])] + else: + if video.shape[0] != len(reference_images): + raise ValueError( + f"Batch size of `video` {video.shape[0]} and length of `reference_images` {len(reference_images)} does not match." + ) + + if video.shape[0] != 1: + # TODO: support this + raise ValueError( + "Generating with more than one video is not yet supported. This may be supported in the future." + ) + + vae_dtype = self.vae.dtype + video = video.to(dtype=vae_dtype) + + latents_mean = torch.tensor(self.vae.config.latents_mean, device=device, dtype=torch.float32).view( + 1, self.vae.config.z_dim, 1, 1, 1 + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std, device=device, dtype=torch.float32).view( + 1, self.vae.config.z_dim, 1, 1, 1 + ) + + if mask is None: + latents = retrieve_latents(self.vae.encode(video), generator, sample_mode="argmax").unbind(0) + latents = ((latents.float() - latents_mean) * latents_std).to(vae_dtype) + else: + mask = torch.where(mask > 0.5, 1.0, 0.0).to(dtype=vae_dtype) + inactive = video * (1 - mask) + reactive = video * mask + inactive = retrieve_latents(self.vae.encode(inactive), generator, sample_mode="argmax") + reactive = retrieve_latents(self.vae.encode(reactive), generator, sample_mode="argmax") + inactive = ((inactive.float() - latents_mean) * latents_std).to(vae_dtype) + reactive = ((reactive.float() - latents_mean) * latents_std).to(vae_dtype) + latents = torch.cat([inactive, reactive], dim=1) + + latent_list = [] + for latent, reference_images_batch in zip(latents, reference_images): + for reference_image in reference_images_batch: + assert reference_image.ndim == 3 + reference_image = reference_image.to(dtype=vae_dtype) + reference_image = reference_image[None, :, None, :, :] # [1, C, 1, H, W] + reference_latent = retrieve_latents(self.vae.encode(reference_image), generator, sample_mode="argmax") + reference_latent = ((reference_latent.float() - latents_mean) * latents_std).to(vae_dtype) + reference_latent = reference_latent.squeeze(0) # [C, 1, H, W] + reference_latent = torch.cat([reference_latent, torch.zeros_like(reference_latent)], dim=0) + latent = torch.cat([reference_latent.squeeze(0), latent], dim=1) + latent_list.append(latent) + return torch.stack(latent_list) + + def prepare_masks( + self, + mask: torch.Tensor, + reference_images: Optional[List[torch.Tensor]] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + ) -> torch.Tensor: + if isinstance(generator, list): + # TODO: support this + raise ValueError("Passing a list of generators is not yet supported. This may be supported in the future.") + + if reference_images is None: + # For each batch of video, we set no reference image (as one or more can be passed by user) + reference_images = [[None] for _ in range(mask.shape[0])] + else: + if mask.shape[0] != len(reference_images): + raise ValueError( + f"Batch size of `mask` {mask.shape[0]} and length of `reference_images` {len(reference_images)} does not match." + ) + + if mask.shape[0] != 1: + # TODO: support this + raise ValueError( + "Generating with more than one video is not yet supported. This may be supported in the future." + ) + + transformer_patch_size = ( + self.transformer.config.patch_size[1] + if self.transformer is not None + else self.transformer_2.config.patch_size[1] + ) + + mask_list = [] + for mask_, reference_images_batch in zip(mask, reference_images): + num_channels, num_frames, height, width = mask_.shape + new_num_frames = (num_frames + self.vae_scale_factor_temporal - 1) // self.vae_scale_factor_temporal + new_height = height // (self.vae_scale_factor_spatial * transformer_patch_size) * transformer_patch_size + new_width = width // (self.vae_scale_factor_spatial * transformer_patch_size) * transformer_patch_size + mask_ = mask_[0, :, :, :] + mask_ = mask_.view( + num_frames, new_height, self.vae_scale_factor_spatial, new_width, self.vae_scale_factor_spatial + ) + mask_ = mask_.permute(2, 4, 0, 1, 3).flatten(0, 1) # [8x8, num_frames, new_height, new_width] + mask_ = torch.nn.functional.interpolate( + mask_.unsqueeze(0), size=(new_num_frames, new_height, new_width), mode="nearest-exact" + ).squeeze(0) + num_ref_images = len(reference_images_batch) + if num_ref_images > 0: + mask_padding = torch.zeros_like(mask_[:, :num_ref_images, :, :]) + mask_ = torch.cat([mask_padding, mask_], dim=1) + mask_list.append(mask_) + return torch.stack(mask_list) + + def prepare_latents( + self, + batch_size: int, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + num_frames: int = 81, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + if latents is not None: + return latents.to(device=device, dtype=dtype) + + num_latent_frames = (num_frames - 1) // self.vae_scale_factor_temporal + 1 + shape = ( + batch_size, + num_channels_latents, + num_latent_frames, + int(height) // self.vae_scale_factor_spatial, + int(width) // self.vae_scale_factor_spatial, + ) + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + return latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1.0 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + video: Optional[List[PipelineImageInput]] = None, + mask: Optional[List[PipelineImageInput]] = None, + reference_images: Optional[List[PipelineImageInput]] = None, + conditioning_scale: Union[float, List[float], torch.Tensor] = 1.0, + height: int = 480, + width: int = 832, + num_frames: int = 81, + num_inference_steps: int = 50, + guidance_scale: float = 5.0, + guidance_scale_2: Optional[float] = None, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds` + instead. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + video (`List[PIL.Image.Image]`, *optional*): + The input video or videos to be used as a starting point for the generation. The video should be a list + of PIL images, a numpy array, or a torch tensor. Currently, the pipeline only supports generating one + video at a time. + mask (`List[PIL.Image.Image]`, *optional*): + The input mask defines which video regions to condition on and which to generate. Black areas in the + mask indicate conditioning regions, while white areas indicate regions for generation. The mask should + be a list of PIL images, a numpy array, or a torch tensor. Currently supports generating a single video + at a time. + reference_images (`List[PIL.Image.Image]`, *optional*): + A list of one or more reference images as extra conditioning for the generation. For example, if you + are trying to inpaint a video to change the character, you can pass reference images of the new + character here. Refer to the Diffusers [examples](https://github.com/huggingface/diffusers/pull/11582) + and original [user + guide](https://github.com/ali-vilab/VACE/blob/0897c6d055d7d9ea9e191dce763006664d9780f8/UserGuide.md) + for a full list of supported tasks and use cases. + conditioning_scale (`float`, `List[float]`, `torch.Tensor`, defaults to `1.0`): + The conditioning scale to be applied when adding the control conditioning latent stream to the + denoising latent stream in each control layer of the model. If a float is provided, it will be applied + uniformly to all layers. If a list or tensor is provided, it should have the same length as the number + of control layers in the model (`len(transformer.config.vace_layers)`). + height (`int`, defaults to `480`): + The height in pixels of the generated image. + width (`int`, defaults to `832`): + The width in pixels of the generated image. + num_frames (`int`, defaults to `81`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `5.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + guidance_scale_2 (`float`, *optional*, defaults to `None`): + Guidance scale for the low-noise stage transformer (`transformer_2`). If `None` and the pipeline's + `boundary_ratio` is not None, uses the same value as `guidance_scale`. Only used when `transformer_2` + and the pipeline's `boundary_ratio` are not None. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`WanPipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, defaults to `512`): + The maximum sequence length of the text encoder. If the prompt is longer than this, it will be + truncated. If the prompt is shorter, it will be padded to this length. + + Examples: + + Returns: + [`~WanPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`WanPipelineOutput`] is returned, otherwise a `tuple` is returned where + the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + # Simplification of implementation for now + if prompt is not None and not isinstance(prompt, str): + raise ValueError("Passing a list of prompts is not yet supported. This may be supported in the future.") + if num_videos_per_prompt != 1: + raise ValueError( + "Generating multiple videos per prompt is not yet supported. This may be supported in the future." + ) + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + height, + width, + prompt_embeds, + negative_prompt_embeds, + callback_on_step_end_tensor_inputs, + video, + mask, + reference_images, + guidance_scale_2, + ) + + if num_frames % self.vae_scale_factor_temporal != 1: + logger.warning( + f"`num_frames - 1` has to be divisible by {self.vae_scale_factor_temporal}. Rounding to the nearest number." + ) + num_frames = num_frames // self.vae_scale_factor_temporal * self.vae_scale_factor_temporal + 1 + num_frames = max(num_frames, 1) + + if self.config.boundary_ratio is not None and guidance_scale_2 is None: + guidance_scale_2 = guidance_scale + + self._guidance_scale = guidance_scale + self._guidance_scale_2 = guidance_scale_2 + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + vae_dtype = self.vae.dtype + transformer_dtype = self.transformer.dtype if self.transformer is not None else self.transformer_2.dtype + + vace_layers = ( + self.transformer.config.vace_layers + if self.transformer is not None + else self.transformer_2.config.vace_layers + ) + if isinstance(conditioning_scale, (int, float)): + conditioning_scale = [conditioning_scale] * len(vace_layers) + if isinstance(conditioning_scale, list): + if len(conditioning_scale) != len(vace_layers): + raise ValueError( + f"Length of `conditioning_scale` {len(conditioning_scale)} does not match number of layers {len(vace_layers)}." + ) + conditioning_scale = torch.tensor(conditioning_scale) + if isinstance(conditioning_scale, torch.Tensor): + if conditioning_scale.size(0) != len(vace_layers): + raise ValueError( + f"Length of `conditioning_scale` {conditioning_scale.size(0)} does not match number of layers {len(vace_layers)}." + ) + conditioning_scale = conditioning_scale.to(device=device, dtype=transformer_dtype) + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latent variables + video, mask, reference_images = self.preprocess_conditions( + video, + mask, + reference_images, + batch_size, + height, + width, + num_frames, + torch.float32, + device, + ) + num_reference_images = len(reference_images[0]) + + conditioning_latents = self.prepare_video_latents(video, mask, reference_images, generator, device) + mask = self.prepare_masks(mask, reference_images, generator) + conditioning_latents = torch.cat([conditioning_latents, mask], dim=1) + conditioning_latents = conditioning_latents.to(transformer_dtype) + + num_channels_latents = ( + self.transformer.config.in_channels + if self.transformer is not None + else self.transformer_2.config.in_channels + ) + latents = self.prepare_latents( + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + num_frames + num_reference_images * self.vae_scale_factor_temporal, + torch.float32, + device, + generator, + latents, + ) + + if conditioning_latents.shape[2] != latents.shape[2]: + logger.warning( + "The number of frames in the conditioning latents does not match the number of frames to be generated. Generation quality may be affected." + ) + + # 6. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + + if self.config.boundary_ratio is not None: + boundary_timestep = self.config.boundary_ratio * self.scheduler.config.num_train_timesteps + else: + boundary_timestep = None + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + self._current_timestep = t + + if boundary_timestep is None or t >= boundary_timestep: + # wan2.1 or high-noise stage in wan2.2 + current_model = self.transformer + current_guidance_scale = guidance_scale + else: + # low-noise stage in wan2.2 + current_model = self.transformer_2 + current_guidance_scale = guidance_scale_2 + + latent_model_input = latents.to(transformer_dtype) + timestep = t.expand(latents.shape[0]) + + with current_model.cache_context("cond"): + noise_pred = current_model( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + control_hidden_states=conditioning_latents, + control_hidden_states_scale=conditioning_scale, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + + if self.do_classifier_free_guidance: + with current_model.cache_context("uncond"): + noise_uncond = current_model( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + control_hidden_states=conditioning_latents, + control_hidden_states_scale=conditioning_scale, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + current_guidance_scale * (noise_pred - noise_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + self._current_timestep = None + + if not output_type == "latent": + latents = latents[:, :, num_reference_images:] + latents = latents.to(vae_dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video = self.vae.decode(latents, return_dict=False)[0] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return WanPipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_video2video.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_video2video.py new file mode 100644 index 0000000000000000000000000000000000000000..a976126da7fe674568d6970a626b33b334b642d1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wan/pipeline_wan_video2video.py @@ -0,0 +1,725 @@ +# Copyright 2025 The Wan Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import html +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import regex as re +import torch +from PIL import Image +from transformers import AutoTokenizer, UMT5EncoderModel + +from ...callbacks import MultiPipelineCallbacks, PipelineCallback +from ...loaders import WanLoraLoaderMixin +from ...models import AutoencoderKLWan, WanTransformer3DModel +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import is_ftfy_available, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ...video_processor import VideoProcessor +from ..pipeline_utils import DiffusionPipeline +from .pipeline_output import WanPipelineOutput + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +if is_ftfy_available(): + import ftfy + + +EXAMPLE_DOC_STRING = """ + Examples: + ```python + >>> import torch + >>> from diffusers.utils import export_to_video, load_video + >>> from diffusers import AutoencoderKLWan, WanVideoToVideoPipeline + >>> from diffusers.schedulers.scheduling_unipc_multistep import UniPCMultistepScheduler + + >>> # Available models: Wan-AI/Wan2.1-T2V-14B-Diffusers, Wan-AI/Wan2.1-T2V-1.3B-Diffusers + >>> model_id = "Wan-AI/Wan2.1-T2V-1.3B-Diffusers" + >>> vae = AutoencoderKLWan.from_pretrained(model_id, subfolder="vae", torch_dtype=torch.float32) + >>> pipe = WanVideoToVideoPipeline.from_pretrained(model_id, vae=vae, torch_dtype=torch.bfloat16) + >>> flow_shift = 3.0 # 5.0 for 720P, 3.0 for 480P + >>> pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=flow_shift) + >>> pipe.to("cuda") + + >>> prompt = "A robot standing on a mountain top. The sun is setting in the background" + >>> negative_prompt = "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards" + >>> video = load_video( + ... "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/hiker.mp4" + ... ) + >>> output = pipe( + ... video=video, + ... prompt=prompt, + ... negative_prompt=negative_prompt, + ... height=480, + ... width=720, + ... guidance_scale=5.0, + ... strength=0.7, + ... ).frames[0] + >>> export_to_video(output, "output.mp4", fps=16) + ``` +""" + + +def basic_clean(text): + text = ftfy.fix_text(text) + text = html.unescape(html.unescape(text)) + return text.strip() + + +def whitespace_clean(text): + text = re.sub(r"\s+", " ", text) + text = text.strip() + return text + + +def prompt_clean(text): + text = whitespace_clean(basic_clean(text)) + return text + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.retrieve_latents +def retrieve_latents( + encoder_output: torch.Tensor, generator: Optional[torch.Generator] = None, sample_mode: str = "sample" +): + if hasattr(encoder_output, "latent_dist") and sample_mode == "sample": + return encoder_output.latent_dist.sample(generator) + elif hasattr(encoder_output, "latent_dist") and sample_mode == "argmax": + return encoder_output.latent_dist.mode() + elif hasattr(encoder_output, "latents"): + return encoder_output.latents + else: + raise AttributeError("Could not access latents of provided encoder_output") + + +class WanVideoToVideoPipeline(DiffusionPipeline, WanLoraLoaderMixin): + r""" + Pipeline for video-to-video generation using Wan. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods + implemented for all pipelines (downloading, saving, running on a particular device, etc.). + + Args: + tokenizer ([`T5Tokenizer`]): + Tokenizer from [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5Tokenizer), + specifically the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + text_encoder ([`T5EncoderModel`]): + [T5](https://huggingface.co/docs/transformers/en/model_doc/t5#transformers.T5EncoderModel), specifically + the [google/umt5-xxl](https://huggingface.co/google/umt5-xxl) variant. + transformer ([`WanTransformer3DModel`]): + Conditional Transformer to denoise the input latents. + scheduler ([`UniPCMultistepScheduler`]): + A scheduler to be used in combination with `transformer` to denoise the encoded image latents. + vae ([`AutoencoderKLWan`]): + Variational Auto-Encoder (VAE) Model to encode and decode videos to and from latent representations. + """ + + model_cpu_offload_seq = "text_encoder->transformer->vae" + _callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"] + + def __init__( + self, + tokenizer: AutoTokenizer, + text_encoder: UMT5EncoderModel, + transformer: WanTransformer3DModel, + vae: AutoencoderKLWan, + scheduler: FlowMatchEulerDiscreteScheduler, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + transformer=transformer, + scheduler=scheduler, + ) + + self.vae_scale_factor_temporal = 2 ** sum(self.vae.temperal_downsample) if getattr(self, "vae", None) else 4 + self.vae_scale_factor_spatial = 2 ** len(self.vae.temperal_downsample) if getattr(self, "vae", None) else 8 + self.video_processor = VideoProcessor(vae_scale_factor=self.vae_scale_factor_spatial) + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline._get_t5_prompt_embeds + def _get_t5_prompt_embeds( + self, + prompt: Union[str, List[str]] = None, + num_videos_per_prompt: int = 1, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + device = device or self._execution_device + dtype = dtype or self.text_encoder.dtype + + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt = [prompt_clean(u) for u in prompt] + batch_size = len(prompt) + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + add_special_tokens=True, + return_attention_mask=True, + return_tensors="pt", + ) + text_input_ids, mask = text_inputs.input_ids, text_inputs.attention_mask + seq_lens = mask.gt(0).sum(dim=1).long() + + prompt_embeds = self.text_encoder(text_input_ids.to(device), mask.to(device)).last_hidden_state + prompt_embeds = prompt_embeds.to(dtype=dtype, device=device) + prompt_embeds = [u[:v] for u, v in zip(prompt_embeds, seq_lens)] + prompt_embeds = torch.stack( + [torch.cat([u, u.new_zeros(max_sequence_length - u.size(0), u.size(1))]) for u in prompt_embeds], dim=0 + ) + + # duplicate text embeddings for each generation per prompt, using mps friendly method + _, seq_len, _ = prompt_embeds.shape + prompt_embeds = prompt_embeds.repeat(1, num_videos_per_prompt, 1) + prompt_embeds = prompt_embeds.view(batch_size * num_videos_per_prompt, seq_len, -1) + + return prompt_embeds + + # Copied from diffusers.pipelines.wan.pipeline_wan.WanPipeline.encode_prompt + def encode_prompt( + self, + prompt: Union[str, List[str]], + negative_prompt: Optional[Union[str, List[str]]] = None, + do_classifier_free_guidance: bool = True, + num_videos_per_prompt: int = 1, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + max_sequence_length: int = 226, + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + ): + r""" + Encodes the prompt into text encoder hidden states. + + Args: + prompt (`str` or `List[str]`, *optional*): + prompt to be encoded + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + do_classifier_free_guidance (`bool`, *optional*, defaults to `True`): + Whether to use classifier free guidance or not. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + Number of videos that should be generated per prompt. torch device to place the resulting embeddings on + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + device: (`torch.device`, *optional*): + torch device + dtype: (`torch.dtype`, *optional*): + torch dtype + """ + device = device or self._execution_device + + prompt = [prompt] if isinstance(prompt, str) else prompt + if prompt is not None: + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + prompt_embeds = self._get_t5_prompt_embeds( + prompt=prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + if do_classifier_free_guidance and negative_prompt_embeds is None: + negative_prompt = negative_prompt or "" + negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + + if prompt is not None and type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + + negative_prompt_embeds = self._get_t5_prompt_embeds( + prompt=negative_prompt, + num_videos_per_prompt=num_videos_per_prompt, + max_sequence_length=max_sequence_length, + device=device, + dtype=dtype, + ) + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + height, + width, + video=None, + latents=None, + prompt_embeds=None, + negative_prompt_embeds=None, + callback_on_step_end_tensor_inputs=None, + ): + if height % 16 != 0 or width % 16 != 0: + raise ValueError(f"`height` and `width` have to be divisible by 16 but are {height} and {width}.") + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`: {negative_prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + elif negative_prompt is not None and ( + not isinstance(negative_prompt, str) and not isinstance(negative_prompt, list) + ): + raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}") + + if video is not None and latents is not None: + raise ValueError("Only one of `video` or `latents` should be provided") + + def prepare_latents( + self, + video: Optional[torch.Tensor] = None, + batch_size: int = 1, + num_channels_latents: int = 16, + height: int = 480, + width: int = 832, + dtype: Optional[torch.dtype] = None, + device: Optional[torch.device] = None, + generator: Optional[torch.Generator] = None, + latents: Optional[torch.Tensor] = None, + timestep: Optional[torch.Tensor] = None, + ): + if isinstance(generator, list) and len(generator) != batch_size: + raise ValueError( + f"You have passed a list of generators of length {len(generator)}, but requested an effective batch" + f" size of {batch_size}. Make sure the batch size matches the length of the generators." + ) + + num_latent_frames = ( + (video.size(2) - 1) // self.vae_scale_factor_temporal + 1 if latents is None else latents.size(1) + ) + shape = ( + batch_size, + num_channels_latents, + num_latent_frames, + height // self.vae_scale_factor_spatial, + width // self.vae_scale_factor_spatial, + ) + + if latents is None: + init_latents = [retrieve_latents(self.vae.encode(vid.unsqueeze(0)), sample_mode="argmax") for vid in video] + + init_latents = torch.cat(init_latents, dim=0).to(dtype) + + latents_mean = ( + torch.tensor(self.vae.config.latents_mean).view(1, self.vae.config.z_dim, 1, 1, 1).to(device, dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + device, dtype + ) + + init_latents = (init_latents - latents_mean) * latents_std + + noise = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + if hasattr(self.scheduler, "add_noise"): + latents = self.scheduler.add_noise(init_latents, noise, timestep) + else: + latents = self.scheduler.scale_noise(init_latents, timestep, noise) + else: + latents = latents.to(device) + + return latents + + # Copied from diffusers.pipelines.animatediff.pipeline_animatediff_video2video.AnimateDiffVideoToVideoPipeline.get_timesteps + def get_timesteps(self, num_inference_steps, timesteps, strength, device): + # get the original timestep using init_timestep + init_timestep = min(int(num_inference_steps * strength), num_inference_steps) + + t_start = max(num_inference_steps - init_timestep, 0) + timesteps = timesteps[t_start * self.scheduler.order :] + + return timesteps, num_inference_steps - t_start + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1.0 + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def current_timestep(self): + return self._current_timestep + + @property + def interrupt(self): + return self._interrupt + + @property + def attention_kwargs(self): + return self._attention_kwargs + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + video: List[Image.Image] = None, + prompt: Union[str, List[str]] = None, + negative_prompt: Union[str, List[str]] = None, + height: int = 480, + width: int = 832, + num_inference_steps: int = 50, + timesteps: Optional[List[int]] = None, + guidance_scale: float = 5.0, + strength: float = 0.8, + num_videos_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + output_type: Optional[str] = "np", + return_dict: bool = True, + attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[ + Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks] + ] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + The call function to the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds` + instead. + height (`int`, defaults to `480`): + The height in pixels of the generated image. + width (`int`, defaults to `832`): + The width in pixels of the generated image. + num_frames (`int`, defaults to `81`): + The number of frames in the generated video. + num_inference_steps (`int`, defaults to `50`): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + guidance_scale (`float`, defaults to `5.0`): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + strength (`float`, defaults to `0.8`): + Higher strength leads to more differences between original image and generated video. + num_videos_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make + generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor is generated by sampling using the supplied random `generator`. + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not + provided, text embeddings are generated from the `prompt` input argument. + output_type (`str`, *optional*, defaults to `"np"`): + The output format of the generated image. Choose between `PIL.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`WanPipelineOutput`] instead of a plain tuple. + attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, `PipelineCallback`, `MultiPipelineCallbacks`, *optional*): + A function or a subclass of `PipelineCallback` or `MultiPipelineCallbacks` that is called at the end of + each denoising step during the inference. with the following arguments: `callback_on_step_end(self: + DiffusionPipeline, step: int, timestep: int, callback_kwargs: Dict)`. `callback_kwargs` will include a + list of all tensors as specified by `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, defaults to `512`): + The maximum sequence length of the text encoder. If the prompt is longer than this, it will be + truncated. If the prompt is shorter, it will be padded to this length. + + Examples: + + Returns: + [`~WanPipelineOutput`] or `tuple`: + If `return_dict` is `True`, [`WanPipelineOutput`] is returned, otherwise a `tuple` is returned where + the first element is a list with the generated images and the second element is a list of `bool`s + indicating whether the corresponding generated image contains "not-safe-for-work" (nsfw) content. + """ + + if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)): + callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs + + height = height or self.transformer.config.sample_height * self.vae_scale_factor_spatial + width = width or self.transformer.config.sample_width * self.vae_scale_factor_spatial + num_videos_per_prompt = 1 + + # 1. Check inputs. Raise error if not correct + self.check_inputs( + prompt, + negative_prompt, + height, + width, + video, + latents, + prompt_embeds, + negative_prompt_embeds, + callback_on_step_end_tensor_inputs, + ) + + self._guidance_scale = guidance_scale + self._attention_kwargs = attention_kwargs + self._current_timestep = None + self._interrupt = False + + device = self._execution_device + + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 3. Encode input prompt + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + num_videos_per_prompt=num_videos_per_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + device=device, + ) + + transformer_dtype = self.transformer.dtype + prompt_embeds = prompt_embeds.to(transformer_dtype) + if negative_prompt_embeds is not None: + negative_prompt_embeds = negative_prompt_embeds.to(transformer_dtype) + + # 4. Prepare timesteps + timesteps, num_inference_steps = retrieve_timesteps(self.scheduler, num_inference_steps, device, timesteps) + timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, timesteps, strength, device) + latent_timestep = timesteps[:1].repeat(batch_size * num_videos_per_prompt) + self._num_timesteps = len(timesteps) + + if latents is None: + video = self.video_processor.preprocess_video(video, height=height, width=width).to( + device, dtype=torch.float32 + ) + + # 5. Prepare latent variables + num_channels_latents = self.transformer.config.in_channels + latents = self.prepare_latents( + video, + batch_size * num_videos_per_prompt, + num_channels_latents, + height, + width, + torch.float32, + device, + generator, + latents, + latent_timestep, + ) + + # 6. Denoising loop + num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order + self._num_timesteps = len(timesteps) + + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + self._current_timestep = t + latent_model_input = latents.to(transformer_dtype) + timestep = t.expand(latents.shape[0]) + + noise_pred = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=prompt_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + + if self.do_classifier_free_guidance: + noise_uncond = self.transformer( + hidden_states=latent_model_input, + timestep=timestep, + encoder_hidden_states=negative_prompt_embeds, + attention_kwargs=attention_kwargs, + return_dict=False, + )[0] + noise_pred = noise_uncond + guidance_scale * (noise_pred - noise_uncond) + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred, t, latents, return_dict=False)[0] + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + if XLA_AVAILABLE: + xm.mark_step() + + self._current_timestep = None + + if not output_type == "latent": + latents = latents.to(self.vae.dtype) + latents_mean = ( + torch.tensor(self.vae.config.latents_mean) + .view(1, self.vae.config.z_dim, 1, 1, 1) + .to(latents.device, latents.dtype) + ) + latents_std = 1.0 / torch.tensor(self.vae.config.latents_std).view(1, self.vae.config.z_dim, 1, 1, 1).to( + latents.device, latents.dtype + ) + latents = latents / latents_std + latents_mean + video = self.vae.decode(latents, return_dict=False)[0] + video = self.video_processor.postprocess_video(video, output_type=output_type) + else: + video = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (video,) + + return WanPipelineOutput(frames=video) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ddb852d1931558fe0948e81e16cf9a92fc2a114b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/__init__.py @@ -0,0 +1,56 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["modeling_paella_vq_model"] = ["PaellaVQModel"] + _import_structure["modeling_wuerstchen_diffnext"] = ["WuerstchenDiffNeXt"] + _import_structure["modeling_wuerstchen_prior"] = ["WuerstchenPrior"] + _import_structure["pipeline_wuerstchen"] = ["WuerstchenDecoderPipeline"] + _import_structure["pipeline_wuerstchen_combined"] = ["WuerstchenCombinedPipeline"] + _import_structure["pipeline_wuerstchen_prior"] = ["DEFAULT_STAGE_C_TIMESTEPS", "WuerstchenPriorPipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * # noqa F403 + else: + from .modeling_paella_vq_model import PaellaVQModel + from .modeling_wuerstchen_diffnext import WuerstchenDiffNeXt + from .modeling_wuerstchen_prior import WuerstchenPrior + from .pipeline_wuerstchen import WuerstchenDecoderPipeline + from .pipeline_wuerstchen_combined import WuerstchenCombinedPipeline + from .pipeline_wuerstchen_prior import DEFAULT_STAGE_C_TIMESTEPS, WuerstchenPriorPipeline +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_paella_vq_model.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_paella_vq_model.py new file mode 100644 index 0000000000000000000000000000000000000000..5ab206b15176e5ab9cb636762d38d3c38618124a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_paella_vq_model.py @@ -0,0 +1,172 @@ +# Copyright (c) 2022 Dominic Rampas MIT License +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Union + +import torch +import torch.nn as nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models.autoencoders.vae import DecoderOutput, VectorQuantizer +from ...models.modeling_utils import ModelMixin +from ...models.vq_model import VQEncoderOutput +from ...utils.accelerate_utils import apply_forward_hook + + +class MixingResidualBlock(nn.Module): + """ + Residual block with mixing used by Paella's VQ-VAE. + """ + + def __init__(self, inp_channels, embed_dim): + super().__init__() + # depthwise + self.norm1 = nn.LayerNorm(inp_channels, elementwise_affine=False, eps=1e-6) + self.depthwise = nn.Sequential( + nn.ReplicationPad2d(1), nn.Conv2d(inp_channels, inp_channels, kernel_size=3, groups=inp_channels) + ) + + # channelwise + self.norm2 = nn.LayerNorm(inp_channels, elementwise_affine=False, eps=1e-6) + self.channelwise = nn.Sequential( + nn.Linear(inp_channels, embed_dim), nn.GELU(), nn.Linear(embed_dim, inp_channels) + ) + + self.gammas = nn.Parameter(torch.zeros(6), requires_grad=True) + + def forward(self, x): + mods = self.gammas + x_temp = self.norm1(x.permute(0, 2, 3, 1)).permute(0, 3, 1, 2) * (1 + mods[0]) + mods[1] + x = x + self.depthwise(x_temp) * mods[2] + x_temp = self.norm2(x.permute(0, 2, 3, 1)).permute(0, 3, 1, 2) * (1 + mods[3]) + mods[4] + x = x + self.channelwise(x_temp.permute(0, 2, 3, 1)).permute(0, 3, 1, 2) * mods[5] + return x + + +class PaellaVQModel(ModelMixin, ConfigMixin): + r"""VQ-VAE model from Paella model. + + This model inherits from [`ModelMixin`]. Check the superclass documentation for the generic methods the library + implements for all the model (such as downloading or saving, etc.) + + Parameters: + in_channels (int, *optional*, defaults to 3): Number of channels in the input image. + out_channels (int, *optional*, defaults to 3): Number of channels in the output. + up_down_scale_factor (int, *optional*, defaults to 2): Up and Downscale factor of the input image. + levels (int, *optional*, defaults to 2): Number of levels in the model. + bottleneck_blocks (int, *optional*, defaults to 12): Number of bottleneck blocks in the model. + embed_dim (int, *optional*, defaults to 384): Number of hidden channels in the model. + latent_channels (int, *optional*, defaults to 4): Number of latent channels in the VQ-VAE model. + num_vq_embeddings (int, *optional*, defaults to 8192): Number of codebook vectors in the VQ-VAE. + scale_factor (float, *optional*, defaults to 0.3764): Scaling factor of the latent space. + """ + + @register_to_config + def __init__( + self, + in_channels: int = 3, + out_channels: int = 3, + up_down_scale_factor: int = 2, + levels: int = 2, + bottleneck_blocks: int = 12, + embed_dim: int = 384, + latent_channels: int = 4, + num_vq_embeddings: int = 8192, + scale_factor: float = 0.3764, + ): + super().__init__() + + c_levels = [embed_dim // (2**i) for i in reversed(range(levels))] + # Encoder blocks + self.in_block = nn.Sequential( + nn.PixelUnshuffle(up_down_scale_factor), + nn.Conv2d(in_channels * up_down_scale_factor**2, c_levels[0], kernel_size=1), + ) + down_blocks = [] + for i in range(levels): + if i > 0: + down_blocks.append(nn.Conv2d(c_levels[i - 1], c_levels[i], kernel_size=4, stride=2, padding=1)) + block = MixingResidualBlock(c_levels[i], c_levels[i] * 4) + down_blocks.append(block) + down_blocks.append( + nn.Sequential( + nn.Conv2d(c_levels[-1], latent_channels, kernel_size=1, bias=False), + nn.BatchNorm2d(latent_channels), # then normalize them to have mean 0 and std 1 + ) + ) + self.down_blocks = nn.Sequential(*down_blocks) + + # Vector Quantizer + self.vquantizer = VectorQuantizer(num_vq_embeddings, vq_embed_dim=latent_channels, legacy=False, beta=0.25) + + # Decoder blocks + up_blocks = [nn.Sequential(nn.Conv2d(latent_channels, c_levels[-1], kernel_size=1))] + for i in range(levels): + for j in range(bottleneck_blocks if i == 0 else 1): + block = MixingResidualBlock(c_levels[levels - 1 - i], c_levels[levels - 1 - i] * 4) + up_blocks.append(block) + if i < levels - 1: + up_blocks.append( + nn.ConvTranspose2d( + c_levels[levels - 1 - i], c_levels[levels - 2 - i], kernel_size=4, stride=2, padding=1 + ) + ) + self.up_blocks = nn.Sequential(*up_blocks) + self.out_block = nn.Sequential( + nn.Conv2d(c_levels[0], out_channels * up_down_scale_factor**2, kernel_size=1), + nn.PixelShuffle(up_down_scale_factor), + ) + + @apply_forward_hook + def encode(self, x: torch.Tensor, return_dict: bool = True) -> VQEncoderOutput: + h = self.in_block(x) + h = self.down_blocks(h) + + if not return_dict: + return (h,) + + return VQEncoderOutput(latents=h) + + @apply_forward_hook + def decode( + self, h: torch.Tensor, force_not_quantize: bool = True, return_dict: bool = True + ) -> Union[DecoderOutput, torch.Tensor]: + if not force_not_quantize: + quant, _, _ = self.vquantizer(h) + else: + quant = h + + x = self.up_blocks(quant) + dec = self.out_block(x) + if not return_dict: + return (dec,) + + return DecoderOutput(sample=dec) + + def forward(self, sample: torch.Tensor, return_dict: bool = True) -> Union[DecoderOutput, torch.Tensor]: + r""" + Args: + sample (`torch.Tensor`): Input sample. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`DecoderOutput`] instead of a plain tuple. + """ + x = sample + h = self.encode(x).latents + dec = self.decode(h).sample + + if not return_dict: + return (dec,) + + return DecoderOutput(sample=dec) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_common.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_common.py new file mode 100644 index 0000000000000000000000000000000000000000..73e71b3076fbca259ae76138bc4ab3d3797e2755 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_common.py @@ -0,0 +1,76 @@ +import torch +import torch.nn as nn + +from ...models.attention_processor import Attention + + +class WuerstchenLayerNorm(nn.LayerNorm): + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + + def forward(self, x): + x = x.permute(0, 2, 3, 1) + x = super().forward(x) + return x.permute(0, 3, 1, 2) + + +class TimestepBlock(nn.Module): + def __init__(self, c, c_timestep): + super().__init__() + + self.mapper = nn.Linear(c_timestep, c * 2) + + def forward(self, x, t): + a, b = self.mapper(t)[:, :, None, None].chunk(2, dim=1) + return x * (1 + a) + b + + +class ResBlock(nn.Module): + def __init__(self, c, c_skip=0, kernel_size=3, dropout=0.0): + super().__init__() + + self.depthwise = nn.Conv2d(c + c_skip, c, kernel_size=kernel_size, padding=kernel_size // 2, groups=c) + self.norm = WuerstchenLayerNorm(c, elementwise_affine=False, eps=1e-6) + self.channelwise = nn.Sequential( + nn.Linear(c, c * 4), nn.GELU(), GlobalResponseNorm(c * 4), nn.Dropout(dropout), nn.Linear(c * 4, c) + ) + + def forward(self, x, x_skip=None): + x_res = x + if x_skip is not None: + x = torch.cat([x, x_skip], dim=1) + x = self.norm(self.depthwise(x)).permute(0, 2, 3, 1) + x = self.channelwise(x).permute(0, 3, 1, 2) + return x + x_res + + +# from https://github.com/facebookresearch/ConvNeXt-V2/blob/3608f67cc1dae164790c5d0aead7bf2d73d9719b/models/utils.py#L105 +class GlobalResponseNorm(nn.Module): + def __init__(self, dim): + super().__init__() + self.gamma = nn.Parameter(torch.zeros(1, 1, 1, dim)) + self.beta = nn.Parameter(torch.zeros(1, 1, 1, dim)) + + def forward(self, x): + agg_norm = torch.norm(x, p=2, dim=(1, 2), keepdim=True) + stand_div_norm = agg_norm / (agg_norm.mean(dim=-1, keepdim=True) + 1e-6) + return self.gamma * (x * stand_div_norm) + self.beta + x + + +class AttnBlock(nn.Module): + def __init__(self, c, c_cond, nhead, self_attn=True, dropout=0.0): + super().__init__() + + self.self_attn = self_attn + self.norm = WuerstchenLayerNorm(c, elementwise_affine=False, eps=1e-6) + self.attention = Attention(query_dim=c, heads=nhead, dim_head=c // nhead, dropout=dropout, bias=True) + self.kv_mapper = nn.Sequential(nn.SiLU(), nn.Linear(c_cond, c)) + + def forward(self, x, kv): + kv = self.kv_mapper(kv) + norm_x = self.norm(x) + if self.self_attn: + batch_size, channel, _, _ = x.shape + kv = torch.cat([norm_x.view(batch_size, channel, -1).transpose(1, 2), kv], dim=1) + x = x + self.attention(norm_x, encoder_hidden_states=kv) + return x diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_diffnext.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_diffnext.py new file mode 100644 index 0000000000000000000000000000000000000000..77ae597655d164e25add03a641a6b8eca5396200 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_diffnext.py @@ -0,0 +1,254 @@ +# Copyright (c) 2023 Dominic Rampas MIT License +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math + +import numpy as np +import torch +import torch.nn as nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...models.modeling_utils import ModelMixin +from .modeling_wuerstchen_common import AttnBlock, GlobalResponseNorm, TimestepBlock, WuerstchenLayerNorm + + +class WuerstchenDiffNeXt(ModelMixin, ConfigMixin): + @register_to_config + def __init__( + self, + c_in=4, + c_out=4, + c_r=64, + patch_size=2, + c_cond=1024, + c_hidden=[320, 640, 1280, 1280], + nhead=[-1, 10, 20, 20], + blocks=[4, 4, 14, 4], + level_config=["CT", "CTA", "CTA", "CTA"], + inject_effnet=[False, True, True, True], + effnet_embd=16, + clip_embd=1024, + kernel_size=3, + dropout=0.1, + ): + super().__init__() + self.c_r = c_r + self.c_cond = c_cond + if not isinstance(dropout, list): + dropout = [dropout] * len(c_hidden) + + # CONDITIONING + self.clip_mapper = nn.Linear(clip_embd, c_cond) + self.effnet_mappers = nn.ModuleList( + [ + nn.Conv2d(effnet_embd, c_cond, kernel_size=1) if inject else None + for inject in inject_effnet + list(reversed(inject_effnet)) + ] + ) + self.seq_norm = nn.LayerNorm(c_cond, elementwise_affine=False, eps=1e-6) + + self.embedding = nn.Sequential( + nn.PixelUnshuffle(patch_size), + nn.Conv2d(c_in * (patch_size**2), c_hidden[0], kernel_size=1), + WuerstchenLayerNorm(c_hidden[0], elementwise_affine=False, eps=1e-6), + ) + + def get_block(block_type, c_hidden, nhead, c_skip=0, dropout=0): + if block_type == "C": + return ResBlockStageB(c_hidden, c_skip, kernel_size=kernel_size, dropout=dropout) + elif block_type == "A": + return AttnBlock(c_hidden, c_cond, nhead, self_attn=True, dropout=dropout) + elif block_type == "T": + return TimestepBlock(c_hidden, c_r) + else: + raise ValueError(f"Block type {block_type} not supported") + + # BLOCKS + # -- down blocks + self.down_blocks = nn.ModuleList() + for i in range(len(c_hidden)): + down_block = nn.ModuleList() + if i > 0: + down_block.append( + nn.Sequential( + WuerstchenLayerNorm(c_hidden[i - 1], elementwise_affine=False, eps=1e-6), + nn.Conv2d(c_hidden[i - 1], c_hidden[i], kernel_size=2, stride=2), + ) + ) + for _ in range(blocks[i]): + for block_type in level_config[i]: + c_skip = c_cond if inject_effnet[i] else 0 + down_block.append(get_block(block_type, c_hidden[i], nhead[i], c_skip=c_skip, dropout=dropout[i])) + self.down_blocks.append(down_block) + + # -- up blocks + self.up_blocks = nn.ModuleList() + for i in reversed(range(len(c_hidden))): + up_block = nn.ModuleList() + for j in range(blocks[i]): + for k, block_type in enumerate(level_config[i]): + c_skip = c_hidden[i] if i < len(c_hidden) - 1 and j == k == 0 else 0 + c_skip += c_cond if inject_effnet[i] else 0 + up_block.append(get_block(block_type, c_hidden[i], nhead[i], c_skip=c_skip, dropout=dropout[i])) + if i > 0: + up_block.append( + nn.Sequential( + WuerstchenLayerNorm(c_hidden[i], elementwise_affine=False, eps=1e-6), + nn.ConvTranspose2d(c_hidden[i], c_hidden[i - 1], kernel_size=2, stride=2), + ) + ) + self.up_blocks.append(up_block) + + # OUTPUT + self.clf = nn.Sequential( + WuerstchenLayerNorm(c_hidden[0], elementwise_affine=False, eps=1e-6), + nn.Conv2d(c_hidden[0], 2 * c_out * (patch_size**2), kernel_size=1), + nn.PixelShuffle(patch_size), + ) + + # --- WEIGHT INIT --- + self.apply(self._init_weights) + + def _init_weights(self, m): + # General init + if isinstance(m, (nn.Conv2d, nn.Linear)): + nn.init.xavier_uniform_(m.weight) + if m.bias is not None: + nn.init.constant_(m.bias, 0) + + for mapper in self.effnet_mappers: + if mapper is not None: + nn.init.normal_(mapper.weight, std=0.02) # conditionings + nn.init.normal_(self.clip_mapper.weight, std=0.02) # conditionings + nn.init.xavier_uniform_(self.embedding[1].weight, 0.02) # inputs + nn.init.constant_(self.clf[1].weight, 0) # outputs + + # blocks + for level_block in self.down_blocks + self.up_blocks: + for block in level_block: + if isinstance(block, ResBlockStageB): + block.channelwise[-1].weight.data *= np.sqrt(1 / sum(self.config.blocks)) + elif isinstance(block, TimestepBlock): + nn.init.constant_(block.mapper.weight, 0) + + def gen_r_embedding(self, r, max_positions=10000): + r = r * max_positions + half_dim = self.c_r // 2 + emb = math.log(max_positions) / (half_dim - 1) + emb = torch.arange(half_dim, device=r.device).float().mul(-emb).exp() + emb = r[:, None] * emb[None, :] + emb = torch.cat([emb.sin(), emb.cos()], dim=1) + if self.c_r % 2 == 1: # zero pad + emb = nn.functional.pad(emb, (0, 1), mode="constant") + return emb.to(dtype=r.dtype) + + def gen_c_embeddings(self, clip): + clip = self.clip_mapper(clip) + clip = self.seq_norm(clip) + return clip + + def _down_encode(self, x, r_embed, effnet, clip=None): + level_outputs = [] + for i, down_block in enumerate(self.down_blocks): + effnet_c = None + for block in down_block: + if isinstance(block, ResBlockStageB): + if effnet_c is None and self.effnet_mappers[i] is not None: + dtype = effnet.dtype + effnet_c = self.effnet_mappers[i]( + nn.functional.interpolate( + effnet.float(), size=x.shape[-2:], mode="bicubic", antialias=True, align_corners=True + ).to(dtype) + ) + skip = effnet_c if self.effnet_mappers[i] is not None else None + x = block(x, skip) + elif isinstance(block, AttnBlock): + x = block(x, clip) + elif isinstance(block, TimestepBlock): + x = block(x, r_embed) + else: + x = block(x) + level_outputs.insert(0, x) + return level_outputs + + def _up_decode(self, level_outputs, r_embed, effnet, clip=None): + x = level_outputs[0] + for i, up_block in enumerate(self.up_blocks): + effnet_c = None + for j, block in enumerate(up_block): + if isinstance(block, ResBlockStageB): + if effnet_c is None and self.effnet_mappers[len(self.down_blocks) + i] is not None: + dtype = effnet.dtype + effnet_c = self.effnet_mappers[len(self.down_blocks) + i]( + nn.functional.interpolate( + effnet.float(), size=x.shape[-2:], mode="bicubic", antialias=True, align_corners=True + ).to(dtype) + ) + skip = level_outputs[i] if j == 0 and i > 0 else None + if effnet_c is not None: + if skip is not None: + skip = torch.cat([skip, effnet_c], dim=1) + else: + skip = effnet_c + x = block(x, skip) + elif isinstance(block, AttnBlock): + x = block(x, clip) + elif isinstance(block, TimestepBlock): + x = block(x, r_embed) + else: + x = block(x) + return x + + def forward(self, x, r, effnet, clip=None, x_cat=None, eps=1e-3, return_noise=True): + if x_cat is not None: + x = torch.cat([x, x_cat], dim=1) + # Process the conditioning embeddings + r_embed = self.gen_r_embedding(r) + if clip is not None: + clip = self.gen_c_embeddings(clip) + + # Model Blocks + x_in = x + x = self.embedding(x) + level_outputs = self._down_encode(x, r_embed, effnet, clip) + x = self._up_decode(level_outputs, r_embed, effnet, clip) + a, b = self.clf(x).chunk(2, dim=1) + b = b.sigmoid() * (1 - eps * 2) + eps + if return_noise: + return (x_in - a) / b + else: + return a, b + + +class ResBlockStageB(nn.Module): + def __init__(self, c, c_skip=0, kernel_size=3, dropout=0.0): + super().__init__() + self.depthwise = nn.Conv2d(c, c, kernel_size=kernel_size, padding=kernel_size // 2, groups=c) + self.norm = WuerstchenLayerNorm(c, elementwise_affine=False, eps=1e-6) + self.channelwise = nn.Sequential( + nn.Linear(c + c_skip, c * 4), + nn.GELU(), + GlobalResponseNorm(c * 4), + nn.Dropout(dropout), + nn.Linear(c * 4, c), + ) + + def forward(self, x, x_skip=None): + x_res = x + x = self.norm(self.depthwise(x)) + if x_skip is not None: + x = torch.cat([x, x_skip], dim=1) + x = self.channelwise(x.permute(0, 2, 3, 1)).permute(0, 3, 1, 2) + return x + x_res diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_prior.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_prior.py new file mode 100644 index 0000000000000000000000000000000000000000..ae821a55788aeddf49d8a7299c6c82da467f2832 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/modeling_wuerstchen_prior.py @@ -0,0 +1,174 @@ +# Copyright (c) 2023 Dominic Rampas MIT License +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from typing import Dict, Union + +import torch +import torch.nn as nn + +from ...configuration_utils import ConfigMixin, register_to_config +from ...loaders import PeftAdapterMixin, UNet2DConditionLoadersMixin +from ...models.attention_processor import ( + ADDED_KV_ATTENTION_PROCESSORS, + CROSS_ATTENTION_PROCESSORS, + AttentionProcessor, + AttnAddedKVProcessor, + AttnProcessor, +) +from ...models.modeling_utils import ModelMixin +from .modeling_wuerstchen_common import AttnBlock, ResBlock, TimestepBlock, WuerstchenLayerNorm + + +class WuerstchenPrior(ModelMixin, ConfigMixin, UNet2DConditionLoadersMixin, PeftAdapterMixin): + unet_name = "prior" + _supports_gradient_checkpointing = True + + @register_to_config + def __init__(self, c_in=16, c=1280, c_cond=1024, c_r=64, depth=16, nhead=16, dropout=0.1): + super().__init__() + + self.c_r = c_r + self.projection = nn.Conv2d(c_in, c, kernel_size=1) + self.cond_mapper = nn.Sequential( + nn.Linear(c_cond, c), + nn.LeakyReLU(0.2), + nn.Linear(c, c), + ) + + self.blocks = nn.ModuleList() + for _ in range(depth): + self.blocks.append(ResBlock(c, dropout=dropout)) + self.blocks.append(TimestepBlock(c, c_r)) + self.blocks.append(AttnBlock(c, c, nhead, self_attn=True, dropout=dropout)) + self.out = nn.Sequential( + WuerstchenLayerNorm(c, elementwise_affine=False, eps=1e-6), + nn.Conv2d(c, c_in * 2, kernel_size=1), + ) + + self.gradient_checkpointing = False + self.set_default_attn_processor() + + @property + # Copied from diffusers.models.unets.unet_2d_condition.UNet2DConditionModel.attn_processors + def attn_processors(self) -> Dict[str, AttentionProcessor]: + r""" + Returns: + `dict` of attention processors: A dictionary containing all attention processors used in the model with + indexed by its weight name. + """ + # set recursively + processors = {} + + def fn_recursive_add_processors(name: str, module: torch.nn.Module, processors: Dict[str, AttentionProcessor]): + if hasattr(module, "get_processor"): + processors[f"{name}.processor"] = module.get_processor() + + for sub_name, child in module.named_children(): + fn_recursive_add_processors(f"{name}.{sub_name}", child, processors) + + return processors + + for name, module in self.named_children(): + fn_recursive_add_processors(name, module, processors) + + return processors + + # Copied from diffusers.models.unets.unet_2d_condition.UNet2DConditionModel.set_attn_processor + def set_attn_processor(self, processor: Union[AttentionProcessor, Dict[str, AttentionProcessor]]): + r""" + Sets the attention processor to use to compute attention. + + Parameters: + processor (`dict` of `AttentionProcessor` or only `AttentionProcessor`): + The instantiated processor class or a dictionary of processor classes that will be set as the processor + for **all** `Attention` layers. + + If `processor` is a dict, the key needs to define the path to the corresponding cross attention + processor. This is strongly recommended when setting trainable attention processors. + + """ + count = len(self.attn_processors.keys()) + + if isinstance(processor, dict) and len(processor) != count: + raise ValueError( + f"A dict of processors was passed, but the number of processors {len(processor)} does not match the" + f" number of attention layers: {count}. Please make sure to pass {count} processor classes." + ) + + def fn_recursive_attn_processor(name: str, module: torch.nn.Module, processor): + if hasattr(module, "set_processor"): + if not isinstance(processor, dict): + module.set_processor(processor) + else: + module.set_processor(processor.pop(f"{name}.processor")) + + for sub_name, child in module.named_children(): + fn_recursive_attn_processor(f"{name}.{sub_name}", child, processor) + + for name, module in self.named_children(): + fn_recursive_attn_processor(name, module, processor) + + # Copied from diffusers.models.unets.unet_2d_condition.UNet2DConditionModel.set_default_attn_processor + def set_default_attn_processor(self): + """ + Disables custom attention processors and sets the default attention implementation. + """ + if all(proc.__class__ in ADDED_KV_ATTENTION_PROCESSORS for proc in self.attn_processors.values()): + processor = AttnAddedKVProcessor() + elif all(proc.__class__ in CROSS_ATTENTION_PROCESSORS for proc in self.attn_processors.values()): + processor = AttnProcessor() + else: + raise ValueError( + f"Cannot call `set_default_attn_processor` when attention processors are of type {next(iter(self.attn_processors.values()))}" + ) + + self.set_attn_processor(processor) + + def gen_r_embedding(self, r, max_positions=10000): + r = r * max_positions + half_dim = self.c_r // 2 + emb = math.log(max_positions) / (half_dim - 1) + emb = torch.arange(half_dim, device=r.device).float().mul(-emb).exp() + emb = r[:, None] * emb[None, :] + emb = torch.cat([emb.sin(), emb.cos()], dim=1) + if self.c_r % 2 == 1: # zero pad + emb = nn.functional.pad(emb, (0, 1), mode="constant") + return emb.to(dtype=r.dtype) + + def forward(self, x, r, c): + x_in = x + x = self.projection(x) + c_embed = self.cond_mapper(c) + r_embed = self.gen_r_embedding(r) + + if torch.is_grad_enabled() and self.gradient_checkpointing: + for block in self.blocks: + if isinstance(block, AttnBlock): + x = self._gradient_checkpointing_func(block, x, c_embed) + elif isinstance(block, TimestepBlock): + x = self._gradient_checkpointing_func(block, x, r_embed) + else: + x = self._gradient_checkpointing_func(block, x) + else: + for block in self.blocks: + if isinstance(block, AttnBlock): + x = block(x, c_embed) + elif isinstance(block, TimestepBlock): + x = block(x, r_embed) + else: + x = block(x) + a, b = self.out(x).chunk(2, dim=1) + return (x_in - a) / ((1 - b).abs() + 1e-5) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen.py new file mode 100644 index 0000000000000000000000000000000000000000..bbdb60471fd1836ca0aa676bb1a25296e7ea6bcd --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen.py @@ -0,0 +1,449 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import Callable, Dict, List, Optional, Union + +import numpy as np +import torch +from transformers import CLIPTextModel, CLIPTokenizer + +from ...schedulers import DDPMWuerstchenScheduler +from ...utils import deprecate, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline, ImagePipelineOutput +from .modeling_paella_vq_model import PaellaVQModel +from .modeling_wuerstchen_diffnext import WuerstchenDiffNeXt + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import WuerstchenPriorPipeline, WuerstchenDecoderPipeline + + >>> prior_pipe = WuerstchenPriorPipeline.from_pretrained( + ... "warp-ai/wuerstchen-prior", torch_dtype=torch.float16 + ... ).to("cuda") + >>> gen_pipe = WuerstchenDecoderPipeline.from_pretrain("warp-ai/wuerstchen", torch_dtype=torch.float16).to( + ... "cuda" + ... ) + + >>> prompt = "an image of a shiba inu, donning a spacesuit and helmet" + >>> prior_output = pipe(prompt) + >>> images = gen_pipe(prior_output.image_embeddings, prompt=prompt) + ``` +""" + + +class WuerstchenDecoderPipeline(DeprecatedPipelineMixin, DiffusionPipeline): + """ + Pipeline for generating images from the Wuerstchen model. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + Args: + tokenizer (`CLIPTokenizer`): + The CLIP tokenizer. + text_encoder (`CLIPTextModel`): + The CLIP text encoder. + decoder ([`WuerstchenDiffNeXt`]): + The WuerstchenDiffNeXt unet decoder. + vqgan ([`PaellaVQModel`]): + The VQGAN model. + scheduler ([`DDPMWuerstchenScheduler`]): + A scheduler to be used in combination with `prior` to generate image embedding. + latent_dim_scale (float, `optional`, defaults to 10.67): + Multiplier to determine the VQ latent space size from the image embeddings. If the image embeddings are + height=24 and width=24, the VQ latent shape needs to be height=int(24*10.67)=256 and + width=int(24*10.67)=256 in order to match the training conditions. + """ + + model_cpu_offload_seq = "text_encoder->decoder->vqgan" + _callback_tensor_inputs = [ + "latents", + "text_encoder_hidden_states", + "negative_prompt_embeds", + "image_embeddings", + ] + + def __init__( + self, + tokenizer: CLIPTokenizer, + text_encoder: CLIPTextModel, + decoder: WuerstchenDiffNeXt, + scheduler: DDPMWuerstchenScheduler, + vqgan: PaellaVQModel, + latent_dim_scale: float = 10.67, + ) -> None: + super().__init__() + self.register_modules( + tokenizer=tokenizer, + text_encoder=text_encoder, + decoder=decoder, + scheduler=scheduler, + vqgan=vqgan, + ) + self.register_to_config(latent_dim_scale=latent_dim_scale) + + # Copied from diffusers.pipelines.unclip.pipeline_unclip.UnCLIPPipeline.prepare_latents + def prepare_latents(self, shape, dtype, device, generator, latents, scheduler): + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def encode_prompt( + self, + prompt, + device, + num_images_per_prompt, + do_classifier_free_guidance, + negative_prompt=None, + ): + batch_size = len(prompt) if isinstance(prompt, list) else 1 + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + attention_mask = text_inputs.attention_mask + + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(text_input_ids, untruncated_ids): + removed_text = self.tokenizer.batch_decode(untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1]) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + text_input_ids = text_input_ids[:, : self.tokenizer.model_max_length] + attention_mask = attention_mask[:, : self.tokenizer.model_max_length] + + text_encoder_output = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask.to(device)) + text_encoder_hidden_states = text_encoder_output.last_hidden_state + text_encoder_hidden_states = text_encoder_hidden_states.repeat_interleave(num_images_per_prompt, dim=0) + + uncond_text_encoder_hidden_states = None + if do_classifier_free_guidance: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + negative_prompt_embeds_text_encoder_output = self.text_encoder( + uncond_input.input_ids.to(device), attention_mask=uncond_input.attention_mask.to(device) + ) + + uncond_text_encoder_hidden_states = negative_prompt_embeds_text_encoder_output.last_hidden_state + + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = uncond_text_encoder_hidden_states.shape[1] + uncond_text_encoder_hidden_states = uncond_text_encoder_hidden_states.repeat(1, num_images_per_prompt, 1) + uncond_text_encoder_hidden_states = uncond_text_encoder_hidden_states.view( + batch_size * num_images_per_prompt, seq_len, -1 + ) + # done duplicates + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + return text_encoder_hidden_states, uncond_text_encoder_hidden_states + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + image_embeddings: Union[torch.Tensor, List[torch.Tensor]], + prompt: Union[str, List[str]] = None, + num_inference_steps: int = 12, + timesteps: Optional[List[float]] = None, + guidance_scale: float = 0.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: int = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + """ + Function invoked when calling the pipeline for generation. + + Args: + image_embedding (`torch.Tensor` or `List[torch.Tensor]`): + Image Embeddings either extracted from an image or generated by a Prior Model. + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation. + num_inference_steps (`int`, *optional*, defaults to 12): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process. If not defined, equal spaced `num_inference_steps` + timesteps are used. Must be in descending order. + guidance_scale (`float`, *optional*, defaults to 0.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `decoder_guidance_scale` is defined as `w` of + equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by + setting `decoder_guidance_scale > 1`. Higher guidance scale encourages to generate images that are + closely linked to the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `decoder_guidance_scale` is less than `1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between: `"pil"` (`PIL.Image.Image`), `"np"` + (`np.array`) or `"pt"` (`torch.Tensor`). + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.ImagePipelineOutput`] or `tuple` [`~pipelines.ImagePipelineOutput`] if `return_dict` is True, + otherwise a `tuple`. When returning a tuple, the first element is a list with the generated image + embeddings. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + # 0. Define commonly used variables + device = self._execution_device + dtype = self.decoder.dtype + self._guidance_scale = guidance_scale + + # 1. Check inputs. Raise error if not correct + if not isinstance(prompt, list): + if isinstance(prompt, str): + prompt = [prompt] + else: + raise TypeError(f"'prompt' must be of type 'list' or 'str', but got {type(prompt)}.") + + if self.do_classifier_free_guidance: + if negative_prompt is not None and not isinstance(negative_prompt, list): + if isinstance(negative_prompt, str): + negative_prompt = [negative_prompt] + else: + raise TypeError( + f"'negative_prompt' must be of type 'list' or 'str', but got {type(negative_prompt)}." + ) + + if isinstance(image_embeddings, list): + image_embeddings = torch.cat(image_embeddings, dim=0) + if isinstance(image_embeddings, np.ndarray): + image_embeddings = torch.Tensor(image_embeddings, device=device).to(dtype=dtype) + if not isinstance(image_embeddings, torch.Tensor): + raise TypeError( + f"'image_embeddings' must be of type 'torch.Tensor' or 'np.array', but got {type(image_embeddings)}." + ) + + if not isinstance(num_inference_steps, int): + raise TypeError( + f"'num_inference_steps' must be of type 'int', but got {type(num_inference_steps)}\ + In Case you want to provide explicit timesteps, please use the 'timesteps' argument." + ) + + # 2. Encode caption + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt, + device, + image_embeddings.size(0) * num_images_per_prompt, + self.do_classifier_free_guidance, + negative_prompt, + ) + text_encoder_hidden_states = ( + torch.cat([prompt_embeds, negative_prompt_embeds]) if negative_prompt_embeds is not None else prompt_embeds + ) + effnet = ( + torch.cat([image_embeddings, torch.zeros_like(image_embeddings)]) + if self.do_classifier_free_guidance + else image_embeddings + ) + + # 3. Determine latent shape of latents + latent_height = int(image_embeddings.size(2) * self.config.latent_dim_scale) + latent_width = int(image_embeddings.size(3) * self.config.latent_dim_scale) + latent_features_shape = (image_embeddings.size(0) * num_images_per_prompt, 4, latent_height, latent_width) + + # 4. Prepare and set timesteps + if timesteps is not None: + self.scheduler.set_timesteps(timesteps=timesteps, device=device) + timesteps = self.scheduler.timesteps + num_inference_steps = len(timesteps) + else: + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latents + latents = self.prepare_latents(latent_features_shape, dtype, device, generator, latents, self.scheduler) + + # 6. Run denoising loop + self._num_timesteps = len(timesteps[:-1]) + for i, t in enumerate(self.progress_bar(timesteps[:-1])): + ratio = t.expand(latents.size(0)).to(dtype) + # 7. Denoise latents + predicted_latents = self.decoder( + torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents, + r=torch.cat([ratio] * 2) if self.do_classifier_free_guidance else ratio, + effnet=effnet, + clip=text_encoder_hidden_states, + ) + + # 8. Check for classifier free guidance and apply it + if self.do_classifier_free_guidance: + predicted_latents_text, predicted_latents_uncond = predicted_latents.chunk(2) + predicted_latents = torch.lerp(predicted_latents_uncond, predicted_latents_text, self.guidance_scale) + + # 9. Renoise latents to next timestep + latents = self.scheduler.step( + model_output=predicted_latents, + timestep=ratio, + sample=latents, + generator=generator, + ).prev_sample + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + image_embeddings = callback_outputs.pop("image_embeddings", image_embeddings) + text_encoder_hidden_states = callback_outputs.pop( + "text_encoder_hidden_states", text_encoder_hidden_states + ) + + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + if output_type not in ["pt", "np", "pil", "latent"]: + raise ValueError( + f"Only the output types `pt`, `np`, `pil` and `latent` are supported not output_type={output_type}" + ) + + if not output_type == "latent": + # 10. Scale and decode the image latents with vq-vae + latents = self.vqgan.config.scale_factor * latents + images = self.vqgan.decode(latents).sample.clamp(0, 1) + if output_type == "np": + images = images.permute(0, 2, 3, 1).cpu().float().numpy() + elif output_type == "pil": + images = images.permute(0, 2, 3, 1).cpu().float().numpy() + images = self.numpy_to_pil(images) + else: + images = latents + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return images + return ImagePipelineOutput(images) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen_combined.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen_combined.py new file mode 100644 index 0000000000000000000000000000000000000000..c54c1fefe8fe61fe88e73b6aa1c0d82fd6576f70 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen_combined.py @@ -0,0 +1,307 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import Callable, Dict, List, Optional, Union + +import torch +from transformers import CLIPTextModel, CLIPTokenizer + +from ...schedulers import DDPMWuerstchenScheduler +from ...utils import deprecate, replace_example_docstring +from ..pipeline_utils import DeprecatedPipelineMixin, DiffusionPipeline +from .modeling_paella_vq_model import PaellaVQModel +from .modeling_wuerstchen_diffnext import WuerstchenDiffNeXt +from .modeling_wuerstchen_prior import WuerstchenPrior +from .pipeline_wuerstchen import WuerstchenDecoderPipeline +from .pipeline_wuerstchen_prior import WuerstchenPriorPipeline + + +TEXT2IMAGE_EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> from diffusions import WuerstchenCombinedPipeline + + >>> pipe = WuerstchenCombinedPipeline.from_pretrained("warp-ai/Wuerstchen", torch_dtype=torch.float16).to( + ... "cuda" + ... ) + >>> prompt = "an image of a shiba inu, donning a spacesuit and helmet" + >>> images = pipe(prompt=prompt) + ``` +""" + + +class WuerstchenCombinedPipeline(DeprecatedPipelineMixin, DiffusionPipeline): + """ + Combined Pipeline for text-to-image generation using Wuerstchen + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + Args: + tokenizer (`CLIPTokenizer`): + The decoder tokenizer to be used for text inputs. + text_encoder (`CLIPTextModel`): + The decoder text encoder to be used for text inputs. + decoder (`WuerstchenDiffNeXt`): + The decoder model to be used for decoder image generation pipeline. + scheduler (`DDPMWuerstchenScheduler`): + The scheduler to be used for decoder image generation pipeline. + vqgan (`PaellaVQModel`): + The VQGAN model to be used for decoder image generation pipeline. + prior_tokenizer (`CLIPTokenizer`): + The prior tokenizer to be used for text inputs. + prior_text_encoder (`CLIPTextModel`): + The prior text encoder to be used for text inputs. + prior_prior (`WuerstchenPrior`): + The prior model to be used for prior pipeline. + prior_scheduler (`DDPMWuerstchenScheduler`): + The scheduler to be used for prior pipeline. + """ + + _last_supported_version = "0.33.1" + _load_connected_pipes = True + + def __init__( + self, + tokenizer: CLIPTokenizer, + text_encoder: CLIPTextModel, + decoder: WuerstchenDiffNeXt, + scheduler: DDPMWuerstchenScheduler, + vqgan: PaellaVQModel, + prior_tokenizer: CLIPTokenizer, + prior_text_encoder: CLIPTextModel, + prior_prior: WuerstchenPrior, + prior_scheduler: DDPMWuerstchenScheduler, + ): + super().__init__() + + self.register_modules( + text_encoder=text_encoder, + tokenizer=tokenizer, + decoder=decoder, + scheduler=scheduler, + vqgan=vqgan, + prior_prior=prior_prior, + prior_text_encoder=prior_text_encoder, + prior_tokenizer=prior_tokenizer, + prior_scheduler=prior_scheduler, + ) + self.prior_pipe = WuerstchenPriorPipeline( + prior=prior_prior, + text_encoder=prior_text_encoder, + tokenizer=prior_tokenizer, + scheduler=prior_scheduler, + ) + self.decoder_pipe = WuerstchenDecoderPipeline( + text_encoder=text_encoder, + tokenizer=tokenizer, + decoder=decoder, + scheduler=scheduler, + vqgan=vqgan, + ) + + def enable_xformers_memory_efficient_attention(self, attention_op: Optional[Callable] = None): + self.decoder_pipe.enable_xformers_memory_efficient_attention(attention_op) + + def enable_model_cpu_offload(self, gpu_id: Optional[int] = None, device: Union[torch.device, str] = None): + r""" + Offloads all models to CPU using accelerate, reducing memory usage with a low impact on performance. Compared + to `enable_sequential_cpu_offload`, this method moves one whole model at a time to the GPU when its `forward` + method is called, and the model remains in GPU until the next model runs. Memory savings are lower than with + `enable_sequential_cpu_offload`, but performance is much better due to the iterative execution of the `unet`. + """ + self.prior_pipe.enable_model_cpu_offload(gpu_id=gpu_id, device=device) + self.decoder_pipe.enable_model_cpu_offload(gpu_id=gpu_id, device=device) + + def enable_sequential_cpu_offload(self, gpu_id: Optional[int] = None, device: Union[torch.device, str] = None): + r""" + Offloads all models (`unet`, `text_encoder`, `vae`, and `safety checker` state dicts) to CPU using 🤗 + Accelerate, significantly reducing memory usage. Models are moved to a `torch.device('meta')` and loaded on a + GPU only when their specific submodule's `forward` method is called. Offloading happens on a submodule basis. + Memory savings are higher than using `enable_model_cpu_offload`, but performance is lower. + """ + self.prior_pipe.enable_sequential_cpu_offload(gpu_id=gpu_id, device=device) + self.decoder_pipe.enable_sequential_cpu_offload(gpu_id=gpu_id, device=device) + + def progress_bar(self, iterable=None, total=None): + self.prior_pipe.progress_bar(iterable=iterable, total=total) + self.decoder_pipe.progress_bar(iterable=iterable, total=total) + + def set_progress_bar_config(self, **kwargs): + self.prior_pipe.set_progress_bar_config(**kwargs) + self.decoder_pipe.set_progress_bar_config(**kwargs) + + @torch.no_grad() + @replace_example_docstring(TEXT2IMAGE_EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Optional[Union[str, List[str]]] = None, + height: int = 512, + width: int = 512, + prior_num_inference_steps: int = 60, + prior_timesteps: Optional[List[float]] = None, + prior_guidance_scale: float = 4.0, + num_inference_steps: int = 12, + decoder_timesteps: Optional[List[float]] = None, + decoder_guidance_scale: float = 0.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + num_images_per_prompt: int = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + prior_callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + prior_callback_on_step_end_tensor_inputs: List[str] = ["latents"], + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + """ + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation for the prior and decoder. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `guidance_scale` is less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings for the prior. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings for the prior. Can be used to easily tweak text inputs, *e.g.* + prompt weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` + input argument. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + height (`int`, *optional*, defaults to 512): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to 512): + The width in pixels of the generated image. + prior_guidance_scale (`float`, *optional*, defaults to 4.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `prior_guidance_scale` is defined as `w` of + equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by + setting `prior_guidance_scale > 1`. Higher guidance scale encourages to generate images that are + closely linked to the text `prompt`, usually at the expense of lower image quality. + prior_num_inference_steps (`Union[int, Dict[float, int]]`, *optional*, defaults to 60): + The number of prior denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. For more specific timestep spacing, you can pass customized + `prior_timesteps` + num_inference_steps (`int`, *optional*, defaults to 12): + The number of decoder denoising steps. More denoising steps usually lead to a higher quality image at + the expense of slower inference. For more specific timestep spacing, you can pass customized + `timesteps` + prior_timesteps (`List[float]`, *optional*): + Custom timesteps to use for the denoising process for the prior. If not defined, equal spaced + `prior_num_inference_steps` timesteps are used. Must be in descending order. + decoder_timesteps (`List[float]`, *optional*): + Custom timesteps to use for the denoising process for the decoder. If not defined, equal spaced + `num_inference_steps` timesteps are used. Must be in descending order. + decoder_guidance_scale (`float`, *optional*, defaults to 0.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `guidance_scale` is defined as `w` of equation 2. + of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by setting + `guidance_scale > 1`. Higher guidance scale encourages to generate images that are closely linked to + the text `prompt`, usually at the expense of lower image quality. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between: `"pil"` (`PIL.Image.Image`), `"np"` + (`np.array`) or `"pt"` (`torch.Tensor`). + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + prior_callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `prior_callback_on_step_end(self: DiffusionPipeline, step: int, timestep: + int, callback_kwargs: Dict)`. + prior_callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `prior_callback_on_step_end` function. The tensors specified in the + list will be passed as `callback_kwargs` argument. You will only be able to include variables listed in + the `._callback_tensor_inputs` attribute of your pipeline class. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.ImagePipelineOutput`] or `tuple` [`~pipelines.ImagePipelineOutput`] if `return_dict` is True, + otherwise a `tuple`. When returning a tuple, the first element is a list with the generated images. + """ + prior_kwargs = {} + if kwargs.get("prior_callback", None) is not None: + prior_kwargs["callback"] = kwargs.pop("prior_callback") + deprecate( + "prior_callback", + "1.0.0", + "Passing `prior_callback` as an input argument to `__call__` is deprecated, consider use `prior_callback_on_step_end`", + ) + if kwargs.get("prior_callback_steps", None) is not None: + deprecate( + "prior_callback_steps", + "1.0.0", + "Passing `prior_callback_steps` as an input argument to `__call__` is deprecated, consider use `prior_callback_on_step_end`", + ) + prior_kwargs["callback_steps"] = kwargs.pop("prior_callback_steps") + + prior_outputs = self.prior_pipe( + prompt=prompt if prompt_embeds is None else None, + height=height, + width=width, + num_inference_steps=prior_num_inference_steps, + timesteps=prior_timesteps, + guidance_scale=prior_guidance_scale, + negative_prompt=negative_prompt if negative_prompt_embeds is None else None, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + num_images_per_prompt=num_images_per_prompt, + generator=generator, + latents=latents, + output_type="pt", + return_dict=False, + callback_on_step_end=prior_callback_on_step_end, + callback_on_step_end_tensor_inputs=prior_callback_on_step_end_tensor_inputs, + **prior_kwargs, + ) + image_embeddings = prior_outputs[0] + + outputs = self.decoder_pipe( + image_embeddings=image_embeddings, + prompt=prompt if prompt is not None else "", + num_inference_steps=num_inference_steps, + timesteps=decoder_timesteps, + guidance_scale=decoder_guidance_scale, + negative_prompt=negative_prompt, + generator=generator, + output_type=output_type, + return_dict=return_dict, + callback_on_step_end=callback_on_step_end, + callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs, + **kwargs, + ) + + return outputs diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen_prior.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen_prior.py new file mode 100644 index 0000000000000000000000000000000000000000..e138b6e805c85a2d51c1558f3c707fc794e225c2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/pipelines/wuerstchen/pipeline_wuerstchen_prior.py @@ -0,0 +1,528 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from math import ceil +from typing import Callable, Dict, List, Optional, Union + +import numpy as np +import torch +from transformers import CLIPTextModel, CLIPTokenizer + +from ...loaders import StableDiffusionLoraLoaderMixin +from ...schedulers import DDPMWuerstchenScheduler +from ...utils import BaseOutput, deprecate, is_torch_xla_available, logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from ..pipeline_utils import DiffusionPipeline +from .modeling_wuerstchen_prior import WuerstchenPrior + + +if is_torch_xla_available(): + import torch_xla.core.xla_model as xm + + XLA_AVAILABLE = True +else: + XLA_AVAILABLE = False + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +DEFAULT_STAGE_C_TIMESTEPS = list(np.linspace(1.0, 2 / 3, 20)) + list(np.linspace(2 / 3, 0.0, 11))[1:] + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import WuerstchenPriorPipeline + + >>> prior_pipe = WuerstchenPriorPipeline.from_pretrained( + ... "warp-ai/wuerstchen-prior", torch_dtype=torch.float16 + ... ).to("cuda") + + >>> prompt = "an image of a shiba inu, donning a spacesuit and helmet" + >>> prior_output = pipe(prompt) + ``` +""" + + +@dataclass +class WuerstchenPriorPipelineOutput(BaseOutput): + """ + Output class for WuerstchenPriorPipeline. + + Args: + image_embeddings (`torch.Tensor` or `np.ndarray`) + Prior image embeddings for text prompt + + """ + + image_embeddings: Union[torch.Tensor, np.ndarray] + + +class WuerstchenPriorPipeline(DiffusionPipeline, StableDiffusionLoraLoaderMixin): + """ + Pipeline for generating image prior for Wuerstchen. + + This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the + library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) + + The pipeline also inherits the following loading methods: + - [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] for loading LoRA weights + - [`~loaders.StableDiffusionLoraLoaderMixin.save_lora_weights`] for saving LoRA weights + + Args: + prior ([`Prior`]): + The canonical unCLIP prior to approximate the image embedding from the text embedding. + text_encoder ([`CLIPTextModelWithProjection`]): + Frozen text-encoder. + tokenizer (`CLIPTokenizer`): + Tokenizer of class + [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). + scheduler ([`DDPMWuerstchenScheduler`]): + A scheduler to be used in combination with `prior` to generate image embedding. + latent_mean ('float', *optional*, defaults to 42.0): + Mean value for latent diffusers. + latent_std ('float', *optional*, defaults to 1.0): + Standard value for latent diffusers. + resolution_multiple ('float', *optional*, defaults to 42.67): + Default resolution for multiple images generated. + """ + + unet_name = "prior" + text_encoder_name = "text_encoder" + model_cpu_offload_seq = "text_encoder->prior" + _callback_tensor_inputs = ["latents", "text_encoder_hidden_states", "negative_prompt_embeds"] + _lora_loadable_modules = ["prior", "text_encoder"] + + def __init__( + self, + tokenizer: CLIPTokenizer, + text_encoder: CLIPTextModel, + prior: WuerstchenPrior, + scheduler: DDPMWuerstchenScheduler, + latent_mean: float = 42.0, + latent_std: float = 1.0, + resolution_multiple: float = 42.67, + ) -> None: + super().__init__() + self.register_modules( + tokenizer=tokenizer, + text_encoder=text_encoder, + prior=prior, + scheduler=scheduler, + ) + self.register_to_config( + latent_mean=latent_mean, latent_std=latent_std, resolution_multiple=resolution_multiple + ) + + # Copied from diffusers.pipelines.unclip.pipeline_unclip.UnCLIPPipeline.prepare_latents + def prepare_latents(self, shape, dtype, device, generator, latents, scheduler): + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + + latents = latents * scheduler.init_noise_sigma + return latents + + def encode_prompt( + self, + device, + num_images_per_prompt, + do_classifier_free_guidance, + prompt=None, + negative_prompt=None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + ): + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + if prompt_embeds is None: + # get prompt text embeddings + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + text_input_ids = text_inputs.input_ids + attention_mask = text_inputs.attention_mask + + untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids + + if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal( + text_input_ids, untruncated_ids + ): + removed_text = self.tokenizer.batch_decode( + untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1] + ) + logger.warning( + "The following part of your input was truncated because CLIP can only handle sequences up to" + f" {self.tokenizer.model_max_length} tokens: {removed_text}" + ) + text_input_ids = text_input_ids[:, : self.tokenizer.model_max_length] + attention_mask = attention_mask[:, : self.tokenizer.model_max_length] + + text_encoder_output = self.text_encoder( + text_input_ids.to(device), attention_mask=attention_mask.to(device) + ) + prompt_embeds = text_encoder_output.last_hidden_state + + prompt_embeds = prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + prompt_embeds = prompt_embeds.repeat_interleave(num_images_per_prompt, dim=0) + + if negative_prompt_embeds is None and do_classifier_free_guidance: + uncond_tokens: List[str] + if negative_prompt is None: + uncond_tokens = [""] * batch_size + elif type(prompt) is not type(negative_prompt): + raise TypeError( + f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !=" + f" {type(prompt)}." + ) + elif isinstance(negative_prompt, str): + uncond_tokens = [negative_prompt] + elif batch_size != len(negative_prompt): + raise ValueError( + f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" + f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" + " the batch size of `prompt`." + ) + else: + uncond_tokens = negative_prompt + + uncond_input = self.tokenizer( + uncond_tokens, + padding="max_length", + max_length=self.tokenizer.model_max_length, + truncation=True, + return_tensors="pt", + ) + negative_prompt_embeds_text_encoder_output = self.text_encoder( + uncond_input.input_ids.to(device), attention_mask=uncond_input.attention_mask.to(device) + ) + + negative_prompt_embeds = negative_prompt_embeds_text_encoder_output.last_hidden_state + + if do_classifier_free_guidance: + # duplicate unconditional embeddings for each generation per prompt, using mps friendly method + seq_len = negative_prompt_embeds.shape[1] + negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder.dtype, device=device) + negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1) + negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1) + # done duplicates + + return prompt_embeds, negative_prompt_embeds + + def check_inputs( + self, + prompt, + negative_prompt, + num_inference_steps, + do_classifier_free_guidance, + prompt_embeds=None, + negative_prompt_embeds=None, + ): + if prompt is not None and prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to" + " only forward one of the two." + ) + elif prompt is None and prompt_embeds is None: + raise ValueError( + "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined." + ) + elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)): + raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") + + if negative_prompt is not None and negative_prompt_embeds is not None: + raise ValueError( + f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:" + f" {negative_prompt_embeds}. Please make sure to only forward one of the two." + ) + + if prompt_embeds is not None and negative_prompt_embeds is not None: + if prompt_embeds.shape != negative_prompt_embeds.shape: + raise ValueError( + "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but" + f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`" + f" {negative_prompt_embeds.shape}." + ) + + if not isinstance(num_inference_steps, int): + raise TypeError( + f"'num_inference_steps' must be of type 'int', but got {type(num_inference_steps)}\ + In Case you want to provide explicit timesteps, please use the 'timesteps' argument." + ) + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def num_timesteps(self): + return self._num_timesteps + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Optional[Union[str, List[str]]] = None, + height: int = 1024, + width: int = 1024, + num_inference_steps: int = 60, + timesteps: List[float] = None, + guidance_scale: float = 8.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[torch.Tensor] = None, + negative_prompt_embeds: Optional[torch.Tensor] = None, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.Tensor] = None, + output_type: Optional[str] = "pt", + return_dict: bool = True, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + **kwargs, + ): + """ + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`): + The prompt or prompts to guide the image generation. + height (`int`, *optional*, defaults to 1024): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to 1024): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 60): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + timesteps (`List[int]`, *optional*): + Custom timesteps to use for the denoising process. If not defined, equal spaced `num_inference_steps` + timesteps are used. Must be in descending order. + guidance_scale (`float`, *optional*, defaults to 8.0): + Guidance scale as defined in [Classifier-Free Diffusion + Guidance](https://huggingface.co/papers/2207.12598). `decoder_guidance_scale` is defined as `w` of + equation 2. of [Imagen Paper](https://huggingface.co/papers/2205.11487). Guidance scale is enabled by + setting `decoder_guidance_scale > 1`. Higher guidance scale encourages to generate images that are + closely linked to the text `prompt`, usually at the expense of lower image quality. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored + if `decoder_guidance_scale` is less than `1`). + prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`torch.Tensor`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.Tensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between: `"pil"` (`PIL.Image.Image`), `"np"` + (`np.array`) or `"pt"` (`torch.Tensor`). + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.ImagePipelineOutput`] instead of a plain tuple. + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + + Examples: + + Returns: + [`~pipelines.WuerstchenPriorPipelineOutput`] or `tuple` [`~pipelines.WuerstchenPriorPipelineOutput`] if + `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the + generated image embeddings. + """ + + callback = kwargs.pop("callback", None) + callback_steps = kwargs.pop("callback_steps", None) + + if callback is not None: + deprecate( + "callback", + "1.0.0", + "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + if callback_steps is not None: + deprecate( + "callback_steps", + "1.0.0", + "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`", + ) + + if callback_on_step_end_tensor_inputs is not None and not all( + k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs + ): + raise ValueError( + f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}" + ) + + # 0. Define commonly used variables + device = self._execution_device + self._guidance_scale = guidance_scale + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = prompt_embeds.shape[0] + + # 1. Check inputs. Raise error if not correct + if prompt is not None and not isinstance(prompt, list): + if isinstance(prompt, str): + prompt = [prompt] + else: + raise TypeError(f"'prompt' must be of type 'list' or 'str', but got {type(prompt)}.") + + if self.do_classifier_free_guidance: + if negative_prompt is not None and not isinstance(negative_prompt, list): + if isinstance(negative_prompt, str): + negative_prompt = [negative_prompt] + else: + raise TypeError( + f"'negative_prompt' must be of type 'list' or 'str', but got {type(negative_prompt)}." + ) + + self.check_inputs( + prompt, + negative_prompt, + num_inference_steps, + self.do_classifier_free_guidance, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + # 2. Encode caption + prompt_embeds, negative_prompt_embeds = self.encode_prompt( + prompt=prompt, + device=device, + num_images_per_prompt=num_images_per_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + negative_prompt=negative_prompt, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + ) + + # For classifier free guidance, we need to do two forward passes. + # Here we concatenate the unconditional and text embeddings into a single batch + # to avoid doing two forward passes + text_encoder_hidden_states = ( + torch.cat([prompt_embeds, negative_prompt_embeds]) if negative_prompt_embeds is not None else prompt_embeds + ) + + # 3. Determine latent shape of image embeddings + dtype = text_encoder_hidden_states.dtype + latent_height = ceil(height / self.config.resolution_multiple) + latent_width = ceil(width / self.config.resolution_multiple) + num_channels = self.prior.config.c_in + effnet_features_shape = (num_images_per_prompt * batch_size, num_channels, latent_height, latent_width) + + # 4. Prepare and set timesteps + if timesteps is not None: + self.scheduler.set_timesteps(timesteps=timesteps, device=device) + timesteps = self.scheduler.timesteps + num_inference_steps = len(timesteps) + else: + self.scheduler.set_timesteps(num_inference_steps, device=device) + timesteps = self.scheduler.timesteps + + # 5. Prepare latents + latents = self.prepare_latents(effnet_features_shape, dtype, device, generator, latents, self.scheduler) + + # 6. Run denoising loop + self._num_timesteps = len(timesteps[:-1]) + for i, t in enumerate(self.progress_bar(timesteps[:-1])): + ratio = t.expand(latents.size(0)).to(dtype) + + # 7. Denoise image embeddings + predicted_image_embedding = self.prior( + torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents, + r=torch.cat([ratio] * 2) if self.do_classifier_free_guidance else ratio, + c=text_encoder_hidden_states, + ) + + # 8. Check for classifier free guidance and apply it + if self.do_classifier_free_guidance: + predicted_image_embedding_text, predicted_image_embedding_uncond = predicted_image_embedding.chunk(2) + predicted_image_embedding = torch.lerp( + predicted_image_embedding_uncond, predicted_image_embedding_text, self.guidance_scale + ) + + # 9. Renoise latents to next timestep + latents = self.scheduler.step( + model_output=predicted_image_embedding, + timestep=ratio, + sample=latents, + generator=generator, + ).prev_sample + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + text_encoder_hidden_states = callback_outputs.pop( + "text_encoder_hidden_states", text_encoder_hidden_states + ) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + if callback is not None and i % callback_steps == 0: + step_idx = i // getattr(self.scheduler, "order", 1) + callback(step_idx, t, latents) + + if XLA_AVAILABLE: + xm.mark_step() + + # 10. Denormalize the latents + latents = latents * self.config.latent_mean - self.config.latent_std + + # Offload all models + self.maybe_free_model_hooks() + + if output_type == "np": + latents = latents.cpu().float().numpy() + + if not return_dict: + return (latents,) + + return WuerstchenPriorPipelineOutput(latents) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/py.typed b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/py.typed new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..3ca867c12908e9604b27fd384d924476ac8ba8d9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/__init__.py @@ -0,0 +1,18 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +from .auto import DiffusersAutoQuantizer +from .base import DiffusersQuantizer +from .pipe_quant_config import PipelineQuantizationConfig diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/auto.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/auto.py new file mode 100644 index 0000000000000000000000000000000000000000..070bcd0b21514107c596014abc6f23ea10f036d1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/auto.py @@ -0,0 +1,150 @@ +# Copyright 2025 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Adapted from +https://github.com/huggingface/transformers/blob/c409cd81777fb27aadc043ed3d8339dbc020fb3b/src/transformers/quantizers/auto.py +""" + +import warnings +from typing import Dict, Optional, Union + +from .bitsandbytes import BnB4BitDiffusersQuantizer, BnB8BitDiffusersQuantizer +from .gguf import GGUFQuantizer +from .modelopt import NVIDIAModelOptQuantizer +from .quantization_config import ( + BitsAndBytesConfig, + GGUFQuantizationConfig, + NVIDIAModelOptConfig, + QuantizationConfigMixin, + QuantizationMethod, + QuantoConfig, + TorchAoConfig, +) +from .quanto import QuantoQuantizer +from .torchao import TorchAoHfQuantizer + + +AUTO_QUANTIZER_MAPPING = { + "bitsandbytes_4bit": BnB4BitDiffusersQuantizer, + "bitsandbytes_8bit": BnB8BitDiffusersQuantizer, + "gguf": GGUFQuantizer, + "quanto": QuantoQuantizer, + "torchao": TorchAoHfQuantizer, + "modelopt": NVIDIAModelOptQuantizer, +} + +AUTO_QUANTIZATION_CONFIG_MAPPING = { + "bitsandbytes_4bit": BitsAndBytesConfig, + "bitsandbytes_8bit": BitsAndBytesConfig, + "gguf": GGUFQuantizationConfig, + "quanto": QuantoConfig, + "torchao": TorchAoConfig, + "modelopt": NVIDIAModelOptConfig, +} + + +class DiffusersAutoQuantizer: + """ + The auto diffusers quantizer class that takes care of automatically instantiating to the correct + `DiffusersQuantizer` given the `QuantizationConfig`. + """ + + @classmethod + def from_dict(cls, quantization_config_dict: Dict): + quant_method = quantization_config_dict.get("quant_method", None) + # We need a special care for bnb models to make sure everything is BC .. + if quantization_config_dict.get("load_in_8bit", False) or quantization_config_dict.get("load_in_4bit", False): + suffix = "_4bit" if quantization_config_dict.get("load_in_4bit", False) else "_8bit" + quant_method = QuantizationMethod.BITS_AND_BYTES + suffix + elif quant_method is None: + raise ValueError( + "The model's quantization config from the arguments has no `quant_method` attribute. Make sure that the model has been correctly quantized" + ) + + if quant_method not in AUTO_QUANTIZATION_CONFIG_MAPPING.keys(): + raise ValueError( + f"Unknown quantization type, got {quant_method} - supported types are:" + f" {list(AUTO_QUANTIZER_MAPPING.keys())}" + ) + + target_cls = AUTO_QUANTIZATION_CONFIG_MAPPING[quant_method] + return target_cls.from_dict(quantization_config_dict) + + @classmethod + def from_config(cls, quantization_config: Union[QuantizationConfigMixin, Dict], **kwargs): + # Convert it to a QuantizationConfig if the q_config is a dict + if isinstance(quantization_config, dict): + quantization_config = cls.from_dict(quantization_config) + + quant_method = quantization_config.quant_method + + # Again, we need a special care for bnb as we have a single quantization config + # class for both 4-bit and 8-bit quantization + if quant_method == QuantizationMethod.BITS_AND_BYTES: + if quantization_config.load_in_8bit: + quant_method += "_8bit" + else: + quant_method += "_4bit" + + if quant_method not in AUTO_QUANTIZER_MAPPING.keys(): + raise ValueError( + f"Unknown quantization type, got {quant_method} - supported types are:" + f" {list(AUTO_QUANTIZER_MAPPING.keys())}" + ) + + target_cls = AUTO_QUANTIZER_MAPPING[quant_method] + return target_cls(quantization_config, **kwargs) + + @classmethod + def from_pretrained(cls, pretrained_model_name_or_path, **kwargs): + model_config = cls.load_config(pretrained_model_name_or_path, **kwargs) + if getattr(model_config, "quantization_config", None) is None: + raise ValueError( + f"Did not found a `quantization_config` in {pretrained_model_name_or_path}. Make sure that the model is correctly quantized." + ) + quantization_config_dict = model_config.quantization_config + quantization_config = cls.from_dict(quantization_config_dict) + # Update with potential kwargs that are passed through from_pretrained. + quantization_config.update(kwargs) + + return cls.from_config(quantization_config) + + @classmethod + def merge_quantization_configs( + cls, + quantization_config: Union[dict, QuantizationConfigMixin], + quantization_config_from_args: Optional[QuantizationConfigMixin], + ): + """ + handles situations where both quantization_config from args and quantization_config from model config are + present. + """ + if quantization_config_from_args is not None: + warning_msg = ( + "You passed `quantization_config` or equivalent parameters to `from_pretrained` but the model you're loading" + " already has a `quantization_config` attribute. The `quantization_config` from the model will be used." + ) + else: + warning_msg = "" + + if isinstance(quantization_config, dict): + quantization_config = cls.from_dict(quantization_config) + + if isinstance(quantization_config, NVIDIAModelOptConfig): + quantization_config.check_model_patching() + + if warning_msg != "": + warnings.warn(warning_msg) + + return quantization_config diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/base.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/base.py new file mode 100644 index 0000000000000000000000000000000000000000..24fc724b4c88588eee9374d2cb17133c9a7af096 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/base.py @@ -0,0 +1,245 @@ +# Copyright 2025 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" +Adapted from +https://github.com/huggingface/transformers/blob/52cb4034ada381fe1ffe8d428a1076e5411a8026/src/transformers/quantizers/base.py +""" + +from abc import ABC, abstractmethod +from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union + +from ..utils import is_torch_available +from .quantization_config import QuantizationConfigMixin + + +if TYPE_CHECKING: + from ..models.modeling_utils import ModelMixin + +if is_torch_available(): + import torch + + +class DiffusersQuantizer(ABC): + """ + Abstract class of the HuggingFace quantizer. Supports for now quantizing HF diffusers models for inference and/or + quantization. This class is used only for diffusers.models.modeling_utils.ModelMixin.from_pretrained and cannot be + easily used outside the scope of that method yet. + + Attributes + quantization_config (`diffusers.quantizers.quantization_config.QuantizationConfigMixin`): + The quantization config that defines the quantization parameters of your model that you want to quantize. + modules_to_not_convert (`List[str]`, *optional*): + The list of module names to not convert when quantizing the model. + required_packages (`List[str]`, *optional*): + The list of required pip packages to install prior to using the quantizer + requires_calibration (`bool`): + Whether the quantization method requires to calibrate the model before using it. + """ + + requires_calibration = False + required_packages = None + + def __init__(self, quantization_config: QuantizationConfigMixin, **kwargs): + self.quantization_config = quantization_config + + # -- Handle extra kwargs below -- + self.modules_to_not_convert = kwargs.pop("modules_to_not_convert", []) + self.pre_quantized = kwargs.pop("pre_quantized", True) + + if not self.pre_quantized and self.requires_calibration: + raise ValueError( + f"The quantization method {quantization_config.quant_method} does require the model to be pre-quantized." + f" You explicitly passed `pre_quantized=False` meaning your model weights are not quantized. Make sure to " + f"pass `pre_quantized=True` while knowing what you are doing." + ) + + def update_torch_dtype(self, torch_dtype: "torch.dtype") -> "torch.dtype": + """ + Some quantization methods require to explicitly set the dtype of the model to a target dtype. You need to + override this method in case you want to make sure that behavior is preserved + + Args: + torch_dtype (`torch.dtype`): + The input dtype that is passed in `from_pretrained` + """ + return torch_dtype + + def update_device_map(self, device_map: Optional[Dict[str, Any]]) -> Optional[Dict[str, Any]]: + """ + Override this method if you want to pass a override the existing device map with a new one. E.g. for + bitsandbytes, since `accelerate` is a hard requirement, if no device_map is passed, the device_map is set to + `"auto"`` + + Args: + device_map (`Union[dict, str]`, *optional*): + The device_map that is passed through the `from_pretrained` method. + """ + return device_map + + def adjust_target_dtype(self, torch_dtype: "torch.dtype") -> "torch.dtype": + """ + Override this method if you want to adjust the `target_dtype` variable used in `from_pretrained` to compute the + device_map in case the device_map is a `str`. E.g. for bitsandbytes we force-set `target_dtype` to `torch.int8` + and for 4-bit we pass a custom enum `accelerate.CustomDtype.int4`. + + Args: + torch_dtype (`torch.dtype`, *optional*): + The torch_dtype that is used to compute the device_map. + """ + return torch_dtype + + def update_missing_keys(self, model, missing_keys: List[str], prefix: str) -> List[str]: + """ + Override this method if you want to adjust the `missing_keys`. + + Args: + missing_keys (`List[str]`, *optional*): + The list of missing keys in the checkpoint compared to the state dict of the model + """ + return missing_keys + + def get_special_dtypes_update(self, model, torch_dtype: "torch.dtype") -> Dict[str, "torch.dtype"]: + """ + returns dtypes for modules that are not quantized - used for the computation of the device_map in case one + passes a str as a device_map. The method will use the `modules_to_not_convert` that is modified in + `_process_model_before_weight_loading`. `diffusers` models don't have any `modules_to_not_convert` attributes + yet but this can change soon in the future. + + Args: + model (`~diffusers.models.modeling_utils.ModelMixin`): + The model to quantize + torch_dtype (`torch.dtype`): + The dtype passed in `from_pretrained` method. + """ + + return { + name: torch_dtype + for name, _ in model.named_parameters() + if any(m in name for m in self.modules_to_not_convert) + } + + def adjust_max_memory(self, max_memory: Dict[str, Union[int, str]]) -> Dict[str, Union[int, str]]: + """adjust max_memory argument for infer_auto_device_map() if extra memory is needed for quantization""" + return max_memory + + def check_if_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + state_dict: Dict[str, Any], + **kwargs, + ) -> bool: + """ + checks if a loaded state_dict component is part of quantized param + some validation; only defined for + quantization methods that require to create a new parameters for quantization. + """ + return False + + def create_quantized_param(self, *args, **kwargs) -> "torch.nn.Parameter": + """ + takes needed components from state_dict and creates quantized param. + """ + return + + def check_quantized_param_shape(self, *args, **kwargs): + """ + checks if the quantized param has expected shape. + """ + return True + + def validate_environment(self, *args, **kwargs): + """ + This method is used to potentially check for potential conflicts with arguments that are passed in + `from_pretrained`. You need to define it for all future quantizers that are integrated with diffusers. If no + explicit check are needed, simply return nothing. + """ + return + + def preprocess_model(self, model: "ModelMixin", **kwargs): + """ + Setting model attributes and/or converting model before weights loading. At this point the model should be + initialized on the meta device so you can freely manipulate the skeleton of the model in order to replace + modules in-place. Make sure to override the abstract method `_process_model_before_weight_loading`. + + Args: + model (`~diffusers.models.modeling_utils.ModelMixin`): + The model to quantize + kwargs (`dict`, *optional*): + The keyword arguments that are passed along `_process_model_before_weight_loading`. + """ + model.is_quantized = True + model.quantization_method = self.quantization_config.quant_method + return self._process_model_before_weight_loading(model, **kwargs) + + def postprocess_model(self, model: "ModelMixin", **kwargs): + """ + Post-process the model post weights loading. Make sure to override the abstract method + `_process_model_after_weight_loading`. + + Args: + model (`~diffusers.models.modeling_utils.ModelMixin`): + The model to quantize + kwargs (`dict`, *optional*): + The keyword arguments that are passed along `_process_model_after_weight_loading`. + """ + return self._process_model_after_weight_loading(model, **kwargs) + + def dequantize(self, model): + """ + Potentially dequantize the model to retrieve the original model, with some loss in accuracy / performance. Note + not all quantization schemes support this. + """ + model = self._dequantize(model) + + # Delete quantizer and quantization config + del model.hf_quantizer + + return model + + def get_cuda_warm_up_factor(self): + """ + The factor to be used in `caching_allocator_warmup` to get the number of bytes to pre-allocate to warm up cuda. + A factor of 2 means we allocate all bytes in the empty model (since we allocate in fp16), a factor of 4 means + we allocate half the memory of the weights residing in the empty model, etc... + """ + # By default we return 4, i.e. half the model size (this corresponds to the case where the model is not + # really pre-processed, i.e. we do not have the info that weights are going to be 8 bits before actual + # weight loading) + return 4 + + def _dequantize(self, model): + raise NotImplementedError( + f"{self.quantization_config.quant_method} has no implementation of `dequantize`, please raise an issue on GitHub." + ) + + @abstractmethod + def _process_model_before_weight_loading(self, model, **kwargs): ... + + @abstractmethod + def _process_model_after_weight_loading(self, model, **kwargs): ... + + @property + @abstractmethod + def is_serializable(self): ... + + @property + @abstractmethod + def is_trainable(self): ... + + @property + def is_compileable(self) -> bool: + """Flag indicating whether the quantized model can be compiled""" + return False diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..9e745bc810faad76608b00ab9c493369466d0970 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/__init__.py @@ -0,0 +1,2 @@ +from .bnb_quantizer import BnB4BitDiffusersQuantizer, BnB8BitDiffusersQuantizer +from .utils import dequantize_and_replace, dequantize_bnb_weight, replace_with_bnb_linear diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/bnb_quantizer.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/bnb_quantizer.py new file mode 100644 index 0000000000000000000000000000000000000000..0dfdff019b79ef3bfb9b89df6378ab398199beeb --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/bnb_quantizer.py @@ -0,0 +1,577 @@ +# Copyright 2025 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Adapted from +https://github.com/huggingface/transformers/blob/c409cd81777fb27aadc043ed3d8339dbc020fb3b/src/transformers/quantizers/quantizer_bnb_4bit.py +""" + +from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union + +from ...utils import get_module_from_name +from ..base import DiffusersQuantizer + + +if TYPE_CHECKING: + from ...models.modeling_utils import ModelMixin + +from ...utils import ( + is_accelerate_available, + is_accelerate_version, + is_bitsandbytes_available, + is_bitsandbytes_version, + is_torch_available, + logging, +) + + +if is_torch_available(): + import torch + +logger = logging.get_logger(__name__) + + +class BnB4BitDiffusersQuantizer(DiffusersQuantizer): + """ + 4-bit quantization from bitsandbytes.py quantization method: + before loading: converts transformer layers into Linear4bit during loading: load 16bit weight and pass to the + layer object after: quantizes individual weights in Linear4bit into 4bit at the first .cuda() call saving: + from state dict, as usual; saves weights and `quant_state` components + loading: + need to locate `quant_state` components and pass to Param4bit constructor + """ + + use_keep_in_fp32_modules = True + requires_calibration = False + + def __init__(self, quantization_config, **kwargs): + super().__init__(quantization_config, **kwargs) + + if self.quantization_config.llm_int8_skip_modules is not None: + self.modules_to_not_convert = self.quantization_config.llm_int8_skip_modules + + def validate_environment(self, *args, **kwargs): + if not (torch.cuda.is_available() or torch.xpu.is_available()): + raise RuntimeError("No GPU found. A GPU is needed for quantization.") + if not is_accelerate_available() or is_accelerate_version("<", "0.26.0"): + raise ImportError( + "Using `bitsandbytes` 4-bit quantization requires Accelerate: `pip install 'accelerate>=0.26.0'`" + ) + if not is_bitsandbytes_available() or is_bitsandbytes_version("<", "0.43.3"): + raise ImportError( + "Using `bitsandbytes` 4-bit quantization requires the latest version of bitsandbytes: `pip install -U bitsandbytes`" + ) + + if kwargs.get("from_flax", False): + raise ValueError( + "Converting into 4-bit weights from flax weights is currently not supported, please make" + " sure the weights are in PyTorch format." + ) + + device_map = kwargs.get("device_map", None) + if ( + device_map is not None + and isinstance(device_map, dict) + and not self.quantization_config.llm_int8_enable_fp32_cpu_offload + ): + device_map_without_no_convert = { + key: device_map[key] for key in device_map.keys() if key not in self.modules_to_not_convert + } + if "cpu" in device_map_without_no_convert.values() or "disk" in device_map_without_no_convert.values(): + raise ValueError( + "Some modules are dispatched on the CPU or the disk. Make sure you have enough GPU RAM to fit the " + "quantized model. If you want to dispatch the model on the CPU or the disk while keeping these modules " + "in 32-bit, you need to set `load_in_8bit_fp32_cpu_offload=True` and pass a custom `device_map` to " + "`from_pretrained`. Check " + "https://huggingface.co/docs/transformers/main/en/main_classes/quantization#offload-between-cpu-and-gpu " + "for more details. " + ) + + def adjust_target_dtype(self, target_dtype: "torch.dtype") -> "torch.dtype": + if target_dtype != torch.int8: + from accelerate.utils import CustomDtype + + logger.info("target_dtype {target_dtype} is replaced by `CustomDtype.INT4` for 4-bit BnB quantization") + return CustomDtype.INT4 + else: + raise ValueError(f"Wrong `target_dtype` ({target_dtype}) provided.") + + def check_if_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + state_dict: Dict[str, Any], + **kwargs, + ) -> bool: + import bitsandbytes as bnb + + module, tensor_name = get_module_from_name(model, param_name) + if isinstance(module._parameters.get(tensor_name, None), bnb.nn.Params4bit): + # Add here check for loaded components' dtypes once serialization is implemented + return True + elif isinstance(module, bnb.nn.Linear4bit) and tensor_name == "bias": + # bias could be loaded by regular set_module_tensor_to_device() from accelerate, + # but it would wrongly use uninitialized weight there. + return True + else: + return False + + def create_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + target_device: "torch.device", + state_dict: Dict[str, Any], + unexpected_keys: Optional[List[str]] = None, + **kwargs, + ): + import bitsandbytes as bnb + + module, tensor_name = get_module_from_name(model, param_name) + + if tensor_name not in module._parameters: + raise ValueError(f"{module} does not have a parameter or a buffer named {tensor_name}.") + + old_value = getattr(module, tensor_name) + + if tensor_name == "bias": + if param_value is None: + new_value = old_value.to(target_device) + else: + new_value = param_value.to(target_device) + + new_value = torch.nn.Parameter(new_value, requires_grad=old_value.requires_grad) + module._parameters[tensor_name] = new_value + return + + if not isinstance(module._parameters[tensor_name], bnb.nn.Params4bit): + raise ValueError("this function only loads `Linear4bit components`") + if ( + old_value.device == torch.device("meta") + and target_device not in ["meta", torch.device("meta")] + and param_value is None + ): + raise ValueError(f"{tensor_name} is on the meta device, we need a `value` to put in on {target_device}.") + + # construct `new_value` for the module._parameters[tensor_name]: + if self.pre_quantized: + # 4bit loading. Collecting components for restoring quantized weight + # This can be expanded to make a universal call for any quantized weight loading + + if not self.is_serializable: + raise ValueError( + "Detected int4 weights but the version of bitsandbytes is not compatible with int4 serialization. " + "Make sure to download the latest `bitsandbytes` version. `pip install --upgrade bitsandbytes`." + ) + + if (param_name + ".quant_state.bitsandbytes__fp4" not in state_dict) and ( + param_name + ".quant_state.bitsandbytes__nf4" not in state_dict + ): + raise ValueError( + f"Supplied state dict for {param_name} does not contain `bitsandbytes__*` and possibly other `quantized_stats` components." + ) + + quantized_stats = {} + for k, v in state_dict.items(): + # `startswith` to counter for edge cases where `param_name` + # substring can be present in multiple places in the `state_dict` + if param_name + "." in k and k.startswith(param_name): + quantized_stats[k] = v + if unexpected_keys is not None and k in unexpected_keys: + unexpected_keys.remove(k) + + new_value = bnb.nn.Params4bit.from_prequantized( + data=param_value, + quantized_stats=quantized_stats, + requires_grad=False, + device=target_device, + ) + else: + new_value = param_value.to("cpu") + kwargs = old_value.__dict__ + new_value = bnb.nn.Params4bit(new_value, requires_grad=False, **kwargs).to(target_device) + + module._parameters[tensor_name] = new_value + + def check_quantized_param_shape(self, param_name, current_param, loaded_param): + current_param_shape = current_param.shape + loaded_param_shape = loaded_param.shape + + n = current_param_shape.numel() + inferred_shape = (n,) if "bias" in param_name else ((n + 1) // 2, 1) + if loaded_param_shape != inferred_shape: + raise ValueError( + f"Expected the flattened shape of the current param ({param_name}) to be {loaded_param_shape} but is {inferred_shape}." + ) + else: + return True + + def adjust_max_memory(self, max_memory: Dict[str, Union[int, str]]) -> Dict[str, Union[int, str]]: + # need more space for buffers that are created during quantization + max_memory = {key: val * 0.90 for key, val in max_memory.items()} + return max_memory + + def update_torch_dtype(self, torch_dtype: "torch.dtype") -> "torch.dtype": + if torch_dtype is None: + # We force the `dtype` to be float16, this is a requirement from `bitsandbytes` + logger.info( + "Overriding torch_dtype=%s with `torch_dtype=torch.float16` due to " + "requirements of `bitsandbytes` to enable model loading in 8-bit or 4-bit. " + "Pass your own torch_dtype to specify the dtype of the remaining non-linear layers or pass" + " torch_dtype=torch.float16 to remove this warning.", + torch_dtype, + ) + torch_dtype = torch.float16 + return torch_dtype + + def update_device_map(self, device_map): + if device_map is None: + if torch.xpu.is_available(): + current_device = f"xpu:{torch.xpu.current_device()}" + else: + current_device = f"cuda:{torch.cuda.current_device()}" + device_map = {"": current_device} + logger.info( + "The device_map was not initialized. " + "Setting device_map to {" + ": {current_device}}. " + "If you want to use the model for inference, please set device_map ='auto' " + ) + return device_map + + def _process_model_before_weight_loading( + self, + model: "ModelMixin", + device_map, + keep_in_fp32_modules: List[str] = [], + **kwargs, + ): + from .utils import replace_with_bnb_linear + + load_in_8bit_fp32_cpu_offload = self.quantization_config.llm_int8_enable_fp32_cpu_offload + + # We may keep some modules such as the `proj_out` in their original dtype for numerical stability reasons + self.modules_to_not_convert = self.quantization_config.llm_int8_skip_modules + + if not isinstance(self.modules_to_not_convert, list): + self.modules_to_not_convert = [self.modules_to_not_convert] + + self.modules_to_not_convert.extend(keep_in_fp32_modules) + + # Extend `self.modules_to_not_convert` to keys that are supposed to be offloaded to `cpu` or `disk` + if isinstance(device_map, dict) and len(device_map.keys()) > 1: + keys_on_cpu = [key for key, value in device_map.items() if value in ["disk", "cpu"]] + + if len(keys_on_cpu) > 0 and not load_in_8bit_fp32_cpu_offload: + raise ValueError( + "If you want to offload some keys to `cpu` or `disk`, you need to set " + "`llm_int8_enable_fp32_cpu_offload=True`. Note that these modules will not be " + " converted to 8-bit but kept in 32-bit." + ) + self.modules_to_not_convert.extend(keys_on_cpu) + + # Purge `None`. + # Unlike `transformers`, we don't know if we should always keep certain modules in FP32 + # in case of diffusion transformer models. For language models and others alike, `lm_head` + # and tied modules are usually kept in FP32. + self.modules_to_not_convert = [module for module in self.modules_to_not_convert if module is not None] + + model = replace_with_bnb_linear( + model, modules_to_not_convert=self.modules_to_not_convert, quantization_config=self.quantization_config + ) + model.config.quantization_config = self.quantization_config + model.is_loaded_in_4bit = True + + def _process_model_after_weight_loading(self, model: "ModelMixin", **kwargs): + model.is_4bit_serializable = self.is_serializable + return model + + @property + def is_serializable(self): + # Because we're mandating `bitsandbytes` 0.43.3. + return True + + @property + def is_trainable(self) -> bool: + # Because we're mandating `bitsandbytes` 0.43.3. + return True + + def _dequantize(self, model): + from .utils import dequantize_and_replace + + is_model_on_cpu = model.device.type == "cpu" + if is_model_on_cpu: + logger.info( + "Model was found to be on CPU (could happen as a result of `enable_model_cpu_offload()`). So, moving it to GPU. After dequantization, will move the model back to CPU again to preserve the previous device." + ) + if torch.xpu.is_available(): + model.to(torch.xpu.current_device()) + else: + model.to(torch.cuda.current_device()) + + model = dequantize_and_replace( + model, self.modules_to_not_convert, quantization_config=self.quantization_config + ) + if is_model_on_cpu: + model.to("cpu") + return model + + +class BnB8BitDiffusersQuantizer(DiffusersQuantizer): + """ + 8-bit quantization from bitsandbytes quantization method: + before loading: converts transformer layers into Linear8bitLt during loading: load 16bit weight and pass to the + layer object after: quantizes individual weights in Linear8bitLt into 8bit at fitst .cuda() call + saving: + from state dict, as usual; saves weights and 'SCB' component + loading: + need to locate SCB component and pass to the Linear8bitLt object + """ + + use_keep_in_fp32_modules = True + requires_calibration = False + + def __init__(self, quantization_config, **kwargs): + super().__init__(quantization_config, **kwargs) + + if self.quantization_config.llm_int8_skip_modules is not None: + self.modules_to_not_convert = self.quantization_config.llm_int8_skip_modules + + def validate_environment(self, *args, **kwargs): + if not (torch.cuda.is_available() or torch.xpu.is_available()): + raise RuntimeError("No GPU found. A GPU is needed for quantization.") + if not is_accelerate_available() or is_accelerate_version("<", "0.26.0"): + raise ImportError( + "Using `bitsandbytes` 8-bit quantization requires Accelerate: `pip install 'accelerate>=0.26.0'`" + ) + if not is_bitsandbytes_available() or is_bitsandbytes_version("<", "0.43.3"): + raise ImportError( + "Using `bitsandbytes` 8-bit quantization requires the latest version of bitsandbytes: `pip install -U bitsandbytes`" + ) + + if kwargs.get("from_flax", False): + raise ValueError( + "Converting into 8-bit weights from flax weights is currently not supported, please make" + " sure the weights are in PyTorch format." + ) + + device_map = kwargs.get("device_map", None) + if ( + device_map is not None + and isinstance(device_map, dict) + and not self.quantization_config.llm_int8_enable_fp32_cpu_offload + ): + device_map_without_no_convert = { + key: device_map[key] for key in device_map.keys() if key not in self.modules_to_not_convert + } + if "cpu" in device_map_without_no_convert.values() or "disk" in device_map_without_no_convert.values(): + raise ValueError( + "Some modules are dispatched on the CPU or the disk. Make sure you have enough GPU RAM to fit the " + "quantized model. If you want to dispatch the model on the CPU or the disk while keeping these modules " + "in 32-bit, you need to set `load_in_8bit_fp32_cpu_offload=True` and pass a custom `device_map` to " + "`from_pretrained`. Check " + "https://huggingface.co/docs/transformers/main/en/main_classes/quantization#offload-between-cpu-and-gpu " + "for more details. " + ) + + # Copied from diffusers.quantizers.bitsandbytes.bnb_quantizer.BnB4BitDiffusersQuantizer.adjust_max_memory + def adjust_max_memory(self, max_memory: Dict[str, Union[int, str]]) -> Dict[str, Union[int, str]]: + # need more space for buffers that are created during quantization + max_memory = {key: val * 0.90 for key, val in max_memory.items()} + return max_memory + + # Copied from diffusers.quantizers.bitsandbytes.bnb_quantizer.BnB4BitDiffusersQuantizer.update_torch_dtype + def update_torch_dtype(self, torch_dtype: "torch.dtype") -> "torch.dtype": + if torch_dtype is None: + # We force the `dtype` to be float16, this is a requirement from `bitsandbytes` + logger.info( + "Overriding torch_dtype=%s with `torch_dtype=torch.float16` due to " + "requirements of `bitsandbytes` to enable model loading in 8-bit or 4-bit. " + "Pass your own torch_dtype to specify the dtype of the remaining non-linear layers or pass" + " torch_dtype=torch.float16 to remove this warning.", + torch_dtype, + ) + torch_dtype = torch.float16 + return torch_dtype + + # Copied from diffusers.quantizers.bitsandbytes.bnb_quantizer.BnB4BitDiffusersQuantizer.update_device_map + def update_device_map(self, device_map): + if device_map is None: + if torch.xpu.is_available(): + current_device = f"xpu:{torch.xpu.current_device()}" + else: + current_device = f"cuda:{torch.cuda.current_device()}" + device_map = {"": current_device} + logger.info( + "The device_map was not initialized. " + "Setting device_map to {" + ": {current_device}}. " + "If you want to use the model for inference, please set device_map ='auto' " + ) + return device_map + + def adjust_target_dtype(self, target_dtype: "torch.dtype") -> "torch.dtype": + if target_dtype != torch.int8: + logger.info("target_dtype {target_dtype} is replaced by `torch.int8` for 8-bit BnB quantization") + return torch.int8 + + def check_if_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + state_dict: Dict[str, Any], + **kwargs, + ): + import bitsandbytes as bnb + + module, tensor_name = get_module_from_name(model, param_name) + if isinstance(module._parameters.get(tensor_name, None), bnb.nn.Int8Params): + if self.pre_quantized: + if param_name.replace("weight", "SCB") not in state_dict.keys(): + raise ValueError("Missing quantization component `SCB`") + if param_value.dtype != torch.int8: + raise ValueError( + f"Incompatible dtype `{param_value.dtype}` when loading 8-bit prequantized weight. Expected `torch.int8`." + ) + return True + return False + + def create_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + target_device: "torch.device", + state_dict: Dict[str, Any], + unexpected_keys: Optional[List[str]] = None, + **kwargs, + ): + import bitsandbytes as bnb + + fp16_statistics_key = param_name.replace("weight", "SCB") + fp16_weights_format_key = param_name.replace("weight", "weight_format") + + fp16_statistics = state_dict.get(fp16_statistics_key, None) + fp16_weights_format = state_dict.get(fp16_weights_format_key, None) + + module, tensor_name = get_module_from_name(model, param_name) + if tensor_name not in module._parameters: + raise ValueError(f"{module} does not have a parameter or a buffer named {tensor_name}.") + + old_value = getattr(module, tensor_name) + + if not isinstance(module._parameters[tensor_name], bnb.nn.Int8Params): + raise ValueError(f"Parameter `{tensor_name}` should only be a `bnb.nn.Int8Params` instance.") + if ( + old_value.device == torch.device("meta") + and target_device not in ["meta", torch.device("meta")] + and param_value is None + ): + raise ValueError(f"{tensor_name} is on the meta device, we need a `value` to put in on {target_device}.") + + new_value = param_value.to("cpu") + if self.pre_quantized and not self.is_serializable: + raise ValueError( + "Detected int8 weights but the version of bitsandbytes is not compatible with int8 serialization. " + "Make sure to download the latest `bitsandbytes` version. `pip install --upgrade bitsandbytes`." + ) + + kwargs = old_value.__dict__ + new_value = bnb.nn.Int8Params(new_value, requires_grad=False, **kwargs).to(target_device) + + module._parameters[tensor_name] = new_value + if fp16_statistics is not None: + setattr(module.weight, "SCB", fp16_statistics.to(target_device)) + if unexpected_keys is not None: + unexpected_keys.remove(fp16_statistics_key) + + # We just need to pop the `weight_format` keys from the state dict to remove unneeded + # messages. The correct format is correctly retrieved during the first forward pass. + if fp16_weights_format is not None and unexpected_keys is not None: + unexpected_keys.remove(fp16_weights_format_key) + + # Copied from diffusers.quantizers.bitsandbytes.bnb_quantizer.BnB4BitDiffusersQuantizer._process_model_after_weight_loading with 4bit->8bit + def _process_model_after_weight_loading(self, model: "ModelMixin", **kwargs): + model.is_8bit_serializable = self.is_serializable + return model + + # Copied from diffusers.quantizers.bitsandbytes.bnb_quantizer.BnB4BitDiffusersQuantizer._process_model_before_weight_loading with 4bit->8bit + def _process_model_before_weight_loading( + self, + model: "ModelMixin", + device_map, + keep_in_fp32_modules: List[str] = [], + **kwargs, + ): + from .utils import replace_with_bnb_linear + + load_in_8bit_fp32_cpu_offload = self.quantization_config.llm_int8_enable_fp32_cpu_offload + + # We may keep some modules such as the `proj_out` in their original dtype for numerical stability reasons + self.modules_to_not_convert = self.quantization_config.llm_int8_skip_modules + + if not isinstance(self.modules_to_not_convert, list): + self.modules_to_not_convert = [self.modules_to_not_convert] + + self.modules_to_not_convert.extend(keep_in_fp32_modules) + + # Extend `self.modules_to_not_convert` to keys that are supposed to be offloaded to `cpu` or `disk` + if isinstance(device_map, dict) and len(device_map.keys()) > 1: + keys_on_cpu = [key for key, value in device_map.items() if value in ["disk", "cpu"]] + + if len(keys_on_cpu) > 0 and not load_in_8bit_fp32_cpu_offload: + raise ValueError( + "If you want to offload some keys to `cpu` or `disk`, you need to set " + "`llm_int8_enable_fp32_cpu_offload=True`. Note that these modules will not be " + " converted to 8-bit but kept in 32-bit." + ) + self.modules_to_not_convert.extend(keys_on_cpu) + + # Purge `None`. + # Unlike `transformers`, we don't know if we should always keep certain modules in FP32 + # in case of diffusion transformer models. For language models and others alike, `lm_head` + # and tied modules are usually kept in FP32. + self.modules_to_not_convert = [module for module in self.modules_to_not_convert if module is not None] + + model = replace_with_bnb_linear( + model, modules_to_not_convert=self.modules_to_not_convert, quantization_config=self.quantization_config + ) + model.config.quantization_config = self.quantization_config + model.is_loaded_in_8bit = True + + @property + # Copied from diffusers.quantizers.bitsandbytes.bnb_quantizer.BnB4BitDiffusersQuantizer.is_serializable + def is_serializable(self): + # Because we're mandating `bitsandbytes` 0.43.3. + return True + + @property + # Copied from diffusers.quantizers.bitsandbytes.bnb_quantizer.BnB4BitDiffusersQuantizer.is_serializable + def is_trainable(self) -> bool: + # Because we're mandating `bitsandbytes` 0.43.3. + return True + + @property + def is_compileable(self) -> bool: + return True + + def _dequantize(self, model): + from .utils import dequantize_and_replace + + model = dequantize_and_replace( + model, self.modules_to_not_convert, quantization_config=self.quantization_config + ) + return model diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..429aabb8fae6de0a2620cde68fba61db9a0557a7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/bitsandbytes/utils.py @@ -0,0 +1,319 @@ +# Copyright 2025 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Adapted from +https://github.com/huggingface/transformers/blob/c409cd81777fb27aadc043ed3d8339dbc020fb3b/src/transformers/integrations/bitsandbytes.py +""" + +import inspect +from inspect import signature +from typing import Union + +from ...utils import is_accelerate_available, is_bitsandbytes_available, is_torch_available, logging +from ..quantization_config import QuantizationMethod + + +if is_torch_available(): + import torch + import torch.nn as nn + +if is_bitsandbytes_available(): + import bitsandbytes as bnb + +if is_accelerate_available(): + import accelerate + from accelerate import init_empty_weights + from accelerate.hooks import add_hook_to_module, remove_hook_from_module + +logger = logging.get_logger(__name__) + + +def _replace_with_bnb_linear( + model, + modules_to_not_convert=None, + current_key_name=None, + quantization_config=None, + has_been_replaced=False, +): + """ + Private method that wraps the recursion for module replacement. + + Returns the converted model and a boolean that indicates if the conversion has been successful or not. + """ + for name, module in model.named_children(): + if current_key_name is None: + current_key_name = [] + current_key_name.append(name) + + if isinstance(module, nn.Linear) and name not in modules_to_not_convert: + # Check if the current key is not in the `modules_to_not_convert` + current_key_name_str = ".".join(current_key_name) + if not any( + (key + "." in current_key_name_str) or (key == current_key_name_str) for key in modules_to_not_convert + ): + with init_empty_weights(): + in_features = module.in_features + out_features = module.out_features + + if quantization_config.quantization_method() == "llm_int8": + model._modules[name] = bnb.nn.Linear8bitLt( + in_features, + out_features, + module.bias is not None, + has_fp16_weights=quantization_config.llm_int8_has_fp16_weight, + threshold=quantization_config.llm_int8_threshold, + ) + has_been_replaced = True + else: + if ( + quantization_config.llm_int8_skip_modules is not None + and name in quantization_config.llm_int8_skip_modules + ): + pass + else: + extra_kwargs = ( + {"quant_storage": quantization_config.bnb_4bit_quant_storage} + if "quant_storage" in list(signature(bnb.nn.Linear4bit).parameters) + else {} + ) + model._modules[name] = bnb.nn.Linear4bit( + in_features, + out_features, + module.bias is not None, + quantization_config.bnb_4bit_compute_dtype, + compress_statistics=quantization_config.bnb_4bit_use_double_quant, + quant_type=quantization_config.bnb_4bit_quant_type, + **extra_kwargs, + ) + has_been_replaced = True + # Store the module class in case we need to transpose the weight later + model._modules[name].source_cls = type(module) + # Force requires grad to False to avoid unexpected errors + model._modules[name].requires_grad_(False) + if len(list(module.children())) > 0: + _, has_been_replaced = _replace_with_bnb_linear( + module, + modules_to_not_convert, + current_key_name, + quantization_config, + has_been_replaced=has_been_replaced, + ) + # Remove the last key for recursion + current_key_name.pop(-1) + return model, has_been_replaced + + +def replace_with_bnb_linear(model, modules_to_not_convert=None, current_key_name=None, quantization_config=None): + """ + Helper function to replace the `nn.Linear` layers within `model` with either `bnb.nn.Linear8bit` or + `bnb.nn.Linear4bit` using the `bitsandbytes` library. + + References: + * `bnb.nn.Linear8bit`: [LLM.int8(): 8-bit Matrix Multiplication for Transformers at + Scale](https://huggingface.co/papers/2208.07339) + * `bnb.nn.Linear4bit`: [QLoRA: Efficient Finetuning of Quantized + LLMs](https://huggingface.co/papers/2305.14314) + + Parameters: + model (`torch.nn.Module`): + Input model or `torch.nn.Module` as the function is run recursively. + modules_to_not_convert (`List[`str`]`, *optional*, defaults to `[]`): + Names of the modules to not convert in `Linear8bitLt`. In practice we keep the `modules_to_not_convert` in + full precision for numerical stability reasons. + current_key_name (`List[`str`]`, *optional*): + An array to track the current key of the recursion. This is used to check whether the current key (part of + it) is not in the list of modules to not convert (for instances modules that are offloaded to `cpu` or + `disk`). + quantization_config ('transformers.utils.quantization_config.BitsAndBytesConfig'): + To configure and manage settings related to quantization, a technique used to compress neural network + models by reducing the precision of the weights and activations, thus making models more efficient in terms + of both storage and computation. + """ + model, _ = _replace_with_bnb_linear(model, modules_to_not_convert, current_key_name, quantization_config) + + has_been_replaced = any( + isinstance(replaced_module, (bnb.nn.Linear4bit, bnb.nn.Linear8bitLt)) + for _, replaced_module in model.named_modules() + ) + if not has_been_replaced: + logger.warning( + "You are loading your model in 8bit or 4bit but no linear modules were found in your model." + " Please double check your model architecture, or submit an issue on github if you think this is" + " a bug." + ) + + return model + + +# Adapted from PEFT: https://github.com/huggingface/peft/blob/6d458b300fc2ed82e19f796b53af4c97d03ea604/src/peft/utils/integrations.py#L81 +def dequantize_bnb_weight(weight: "torch.nn.Parameter", state=None, dtype: "torch.dtype" = None): + """ + Helper function to dequantize 4bit or 8bit bnb weights. + + If the weight is not a bnb quantized weight, it will be returned as is. + """ + if not isinstance(weight, torch.nn.Parameter): + raise TypeError(f"Input weight should be of type nn.Parameter, got {type(weight)} instead") + + cls_name = weight.__class__.__name__ + if cls_name not in ("Params4bit", "Int8Params"): + return weight + + if cls_name == "Params4bit": + output_tensor = bnb.functional.dequantize_4bit(weight.data, weight.quant_state) + msg = f"The model is going to be dequantized in {output_tensor.dtype} - if you want to upcast it to another dtype, make sure to pass the desired dtype when quantizing the model through `bnb_4bit_quant_type` argument of `BitsAndBytesConfig`" + if dtype: + msg = f"The model is going to be first dequantized in {output_tensor.dtype} and type-casted to {dtype}" + output_tensor = output_tensor.to(dtype) + logger.warning_once(msg) + return output_tensor + + if state.SCB is None: + state.SCB = weight.SCB + + if hasattr(bnb.functional, "int8_vectorwise_dequant"): + # Use bitsandbytes API if available (requires v0.45.0+) + dequantized = bnb.functional.int8_vectorwise_dequant(weight.data, state.SCB) + else: + # Multiply by (scale/127) to dequantize. + dequantized = weight.data * state.SCB.view(-1, 1) * 7.874015718698502e-3 + + if dtype: + dequantized = dequantized.to(dtype) + return dequantized + + +def _create_accelerate_new_hook(old_hook): + r""" + Creates a new hook based on the old hook. Use it only if you know what you are doing ! This method is a copy of: + https://github.com/huggingface/peft/blob/748f7968f3a31ec06a1c2b0328993319ad9a150a/src/peft/utils/other.py#L245 with + some changes + """ + old_hook_cls = getattr(accelerate.hooks, old_hook.__class__.__name__) + old_hook_attr = old_hook.__dict__ + filtered_old_hook_attr = {} + old_hook_init_signature = inspect.signature(old_hook_cls.__init__) + for k in old_hook_attr.keys(): + if k in old_hook_init_signature.parameters: + filtered_old_hook_attr[k] = old_hook_attr[k] + new_hook = old_hook_cls(**filtered_old_hook_attr) + return new_hook + + +def _dequantize_and_replace( + model, + dtype, + modules_to_not_convert=None, + current_key_name=None, + quantization_config=None, + has_been_replaced=False, +): + """ + Converts a quantized model into its dequantized original version. The newly converted model will have some + performance drop compared to the original model before quantization - use it only for specific usecases such as + QLoRA adapters merging. + + Returns the converted model and a boolean that indicates if the conversion has been successful or not. + """ + quant_method = quantization_config.quantization_method() + + target_cls = bnb.nn.Linear8bitLt if quant_method == "llm_int8" else bnb.nn.Linear4bit + + for name, module in model.named_children(): + if current_key_name is None: + current_key_name = [] + current_key_name.append(name) + + if isinstance(module, target_cls) and name not in modules_to_not_convert: + # Check if the current key is not in the `modules_to_not_convert` + current_key_name_str = ".".join(current_key_name) + + if not any( + (key + "." in current_key_name_str) or (key == current_key_name_str) for key in modules_to_not_convert + ): + bias = getattr(module, "bias", None) + + device = module.weight.device + with init_empty_weights(): + new_module = torch.nn.Linear(module.in_features, module.out_features, bias=bias is not None) + + if quant_method == "llm_int8": + state = module.state + else: + state = None + + new_module.weight = torch.nn.Parameter(dequantize_bnb_weight(module.weight, state, dtype)) + + if bias is not None: + new_module.bias = bias + + # Create a new hook and attach it in case we use accelerate + if hasattr(module, "_hf_hook"): + old_hook = module._hf_hook + new_hook = _create_accelerate_new_hook(old_hook) + + remove_hook_from_module(module) + add_hook_to_module(new_module, new_hook) + + new_module.to(device) + model._modules[name] = new_module + has_been_replaced = True + if len(list(module.children())) > 0: + _, has_been_replaced = _dequantize_and_replace( + module, + dtype=dtype, + modules_to_not_convert=modules_to_not_convert, + current_key_name=current_key_name, + quantization_config=quantization_config, + has_been_replaced=has_been_replaced, + ) + # Remove the last key for recursion + current_key_name.pop(-1) + return model, has_been_replaced + + +def dequantize_and_replace( + model, + modules_to_not_convert=None, + quantization_config=None, +): + model, _ = _dequantize_and_replace( + model, + dtype=model.dtype, + modules_to_not_convert=modules_to_not_convert, + quantization_config=quantization_config, + ) + has_been_replaced = any( + isinstance(replaced_module, torch.nn.Linear) for _, replaced_module in model.named_modules() + ) + if not has_been_replaced: + logger.warning( + "Some linear modules were not dequantized. This could lead to unexpected behaviour. Please check your model." + ) + + return model + + +def _check_bnb_status(module) -> Union[bool, bool]: + is_loaded_in_4bit_bnb = ( + hasattr(module, "is_loaded_in_4bit") + and module.is_loaded_in_4bit + and getattr(module, "quantization_method", None) == QuantizationMethod.BITS_AND_BYTES + ) + is_loaded_in_8bit_bnb = ( + hasattr(module, "is_loaded_in_8bit") + and module.is_loaded_in_8bit + and getattr(module, "quantization_method", None) == QuantizationMethod.BITS_AND_BYTES + ) + return is_loaded_in_4bit_bnb or is_loaded_in_8bit_bnb, is_loaded_in_4bit_bnb, is_loaded_in_8bit_bnb diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..b3d9082ac803c8da97ba7bb37021445307b96f7c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/__init__.py @@ -0,0 +1 @@ +from .gguf_quantizer import GGUFQuantizer diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/gguf_quantizer.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/gguf_quantizer.py new file mode 100644 index 0000000000000000000000000000000000000000..aa5ebf5711a3731c4768da9ede0206b2edc64ade --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/gguf_quantizer.py @@ -0,0 +1,169 @@ +from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union + +from ..base import DiffusersQuantizer + + +if TYPE_CHECKING: + from ...models.modeling_utils import ModelMixin + + +from ...utils import ( + get_module_from_name, + is_accelerate_available, + is_accelerate_version, + is_gguf_available, + is_gguf_version, + is_torch_available, + logging, +) + + +if is_torch_available() and is_gguf_available(): + import torch + + from .utils import ( + GGML_QUANT_SIZES, + GGUFParameter, + _dequantize_gguf_and_restore_linear, + _quant_shape_from_byte_shape, + _replace_with_gguf_linear, + ) + + +logger = logging.get_logger(__name__) + + +class GGUFQuantizer(DiffusersQuantizer): + use_keep_in_fp32_modules = True + + def __init__(self, quantization_config, **kwargs): + super().__init__(quantization_config, **kwargs) + + self.compute_dtype = quantization_config.compute_dtype + self.pre_quantized = quantization_config.pre_quantized + self.modules_to_not_convert = quantization_config.modules_to_not_convert + + if not isinstance(self.modules_to_not_convert, list): + self.modules_to_not_convert = [self.modules_to_not_convert] + + def validate_environment(self, *args, **kwargs): + if not is_accelerate_available() or is_accelerate_version("<", "0.26.0"): + raise ImportError( + "Loading GGUF Parameters requires `accelerate` installed in your environment: `pip install 'accelerate>=0.26.0'`" + ) + if not is_gguf_available() or is_gguf_version("<", "0.10.0"): + raise ImportError( + "To load GGUF format files you must have `gguf` installed in your environment: `pip install gguf>=0.10.0`" + ) + + # Copied from diffusers.quantizers.bitsandbytes.bnb_quantizer.BnB4BitDiffusersQuantizer.adjust_max_memory + def adjust_max_memory(self, max_memory: Dict[str, Union[int, str]]) -> Dict[str, Union[int, str]]: + # need more space for buffers that are created during quantization + max_memory = {key: val * 0.90 for key, val in max_memory.items()} + return max_memory + + def adjust_target_dtype(self, target_dtype: "torch.dtype") -> "torch.dtype": + if target_dtype != torch.uint8: + logger.info(f"target_dtype {target_dtype} is replaced by `torch.uint8` for GGUF quantization") + return torch.uint8 + + def update_torch_dtype(self, torch_dtype: "torch.dtype") -> "torch.dtype": + if torch_dtype is None: + torch_dtype = self.compute_dtype + return torch_dtype + + def check_quantized_param_shape(self, param_name, current_param, loaded_param): + loaded_param_shape = loaded_param.shape + current_param_shape = current_param.shape + quant_type = loaded_param.quant_type + + block_size, type_size = GGML_QUANT_SIZES[quant_type] + + inferred_shape = _quant_shape_from_byte_shape(loaded_param_shape, type_size, block_size) + if inferred_shape != current_param_shape: + raise ValueError( + f"{param_name} has an expected quantized shape of: {inferred_shape}, but received shape: {loaded_param_shape}" + ) + + return True + + def check_if_quantized_param( + self, + model: "ModelMixin", + param_value: Union["GGUFParameter", "torch.Tensor"], + param_name: str, + state_dict: Dict[str, Any], + **kwargs, + ) -> bool: + if isinstance(param_value, GGUFParameter): + return True + + return False + + def create_quantized_param( + self, + model: "ModelMixin", + param_value: Union["GGUFParameter", "torch.Tensor"], + param_name: str, + target_device: "torch.device", + state_dict: Optional[Dict[str, Any]] = None, + unexpected_keys: Optional[List[str]] = None, + **kwargs, + ): + module, tensor_name = get_module_from_name(model, param_name) + if tensor_name not in module._parameters and tensor_name not in module._buffers: + raise ValueError(f"{module} does not have a parameter or a buffer named {tensor_name}.") + + if tensor_name in module._parameters: + module._parameters[tensor_name] = param_value.to(target_device) + if tensor_name in module._buffers: + module._buffers[tensor_name] = param_value.to(target_device) + + def _process_model_before_weight_loading( + self, + model: "ModelMixin", + device_map, + keep_in_fp32_modules: List[str] = [], + **kwargs, + ): + state_dict = kwargs.get("state_dict", None) + + self.modules_to_not_convert.extend(keep_in_fp32_modules) + self.modules_to_not_convert = [module for module in self.modules_to_not_convert if module is not None] + + _replace_with_gguf_linear( + model, self.compute_dtype, state_dict, modules_to_not_convert=self.modules_to_not_convert + ) + + def _process_model_after_weight_loading(self, model: "ModelMixin", **kwargs): + return model + + @property + def is_serializable(self): + return False + + @property + def is_trainable(self) -> bool: + return False + + @property + def is_compileable(self) -> bool: + return True + + def _dequantize(self, model): + is_model_on_cpu = model.device.type == "cpu" + if is_model_on_cpu: + logger.info( + "Model was found to be on CPU (could happen as a result of `enable_model_cpu_offload()`). So, moving it to accelerator. After dequantization, will move the model back to CPU again to preserve the previous device." + ) + device = ( + torch.accelerator.current_accelerator() + if hasattr(torch, "accelerator") + else torch.cuda.current_device() + ) + model.to(device) + + model = _dequantize_gguf_and_restore_linear(model, self.modules_to_not_convert) + if is_model_on_cpu: + model.to("cpu") + return model diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..2fba9986e8250e009035b6ce07cb1565a65fd197 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/gguf/utils.py @@ -0,0 +1,606 @@ +# Copyright 2025 The HuggingFace Team and City96. All rights reserved. +# # +# # Licensed under the Apache License, Version 2.0 (the "License"); +# # you may not use this file except in compliance with the License. +# # You may obtain a copy of the License at +# # +# # http://www.apache.org/licenses/LICENSE-2.0 +# # +# # Unless required by applicable law or agreed to in writing, software +# # distributed under the License is distributed on an "AS IS" BASIS, +# # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# # See the License for the specific language governing permissions and +# # limitations under the License. + +import inspect +import os +from contextlib import nullcontext + +import gguf +import torch +import torch.nn as nn + +from ...utils import is_accelerate_available, is_kernels_available + + +if is_accelerate_available(): + import accelerate + from accelerate import init_empty_weights + from accelerate.hooks import add_hook_to_module, remove_hook_from_module + + +can_use_cuda_kernels = ( + os.getenv("DIFFUSERS_GGUF_CUDA_KERNELS", "false").lower() in ["1", "true", "yes"] + and torch.cuda.is_available() + and torch.cuda.get_device_capability()[0] >= 7 +) +if can_use_cuda_kernels and is_kernels_available(): + from kernels import get_kernel + + ops = get_kernel("Isotr0py/ggml") +else: + ops = None + +UNQUANTIZED_TYPES = {gguf.GGMLQuantizationType.F32, gguf.GGMLQuantizationType.F16, gguf.GGMLQuantizationType.BF16} +STANDARD_QUANT_TYPES = { + gguf.GGMLQuantizationType.Q4_0, + gguf.GGMLQuantizationType.Q4_1, + gguf.GGMLQuantizationType.Q5_0, + gguf.GGMLQuantizationType.Q5_1, + gguf.GGMLQuantizationType.Q8_0, + gguf.GGMLQuantizationType.Q8_1, +} +KQUANT_TYPES = { + gguf.GGMLQuantizationType.Q2_K, + gguf.GGMLQuantizationType.Q3_K, + gguf.GGMLQuantizationType.Q4_K, + gguf.GGMLQuantizationType.Q5_K, + gguf.GGMLQuantizationType.Q6_K, +} +IMATRIX_QUANT_TYPES = { + gguf.GGMLQuantizationType.IQ1_M, + gguf.GGMLQuantizationType.IQ1_S, + gguf.GGMLQuantizationType.IQ2_XXS, + gguf.GGMLQuantizationType.IQ2_XS, + gguf.GGMLQuantizationType.IQ2_S, + gguf.GGMLQuantizationType.IQ3_XXS, + gguf.GGMLQuantizationType.IQ3_S, + gguf.GGMLQuantizationType.IQ4_XS, + gguf.GGMLQuantizationType.IQ4_NL, +} +# TODO(Isotr0py): Currently, we don't have MMQ kernel for I-Matrix quantization. +# Consolidate DEQUANT_TYPES, MMVQ_QUANT_TYPES and MMQ_QUANT_TYPES after we add +# MMQ kernel for I-Matrix quantization. +DEQUANT_TYPES = STANDARD_QUANT_TYPES | KQUANT_TYPES | IMATRIX_QUANT_TYPES +MMVQ_QUANT_TYPES = STANDARD_QUANT_TYPES | KQUANT_TYPES | IMATRIX_QUANT_TYPES +MMQ_QUANT_TYPES = STANDARD_QUANT_TYPES | KQUANT_TYPES + + +def _fused_mul_mat_gguf(x: torch.Tensor, qweight: torch.Tensor, qweight_type: int) -> torch.Tensor: + # there is no need to call any kernel for fp16/bf16 + if qweight_type in UNQUANTIZED_TYPES: + return x @ qweight.T + + # TODO(Isotr0py): GGUF's MMQ and MMVQ implementation are designed for + # contiguous batching and inefficient with diffusers' batching, + # so we disabled it now. + + # elif qweight_type in MMVQ_QUANT_TYPES: + # y = ops.ggml_mul_mat_vec_a8(qweight, x, qweight_type, qweight.shape[0]) + # elif qweight_type in MMQ_QUANT_TYPES: + # y = ops.ggml_mul_mat_a8(qweight, x, qweight_type, qweight.shape[0]) + + # If there is no available MMQ kernel, fallback to dequantize + if qweight_type in DEQUANT_TYPES: + block_size, type_size = gguf.GGML_QUANT_SIZES[qweight_type] + shape = (qweight.shape[0], qweight.shape[1] // type_size * block_size) + weight = ops.ggml_dequantize(qweight, qweight_type, *shape) + y = x @ weight.to(x.dtype).T + else: + # Raise an error if the quantization type is not supported. + # Might be useful if llama.cpp adds a new quantization type. + # Wrap to GGMLQuantizationType IntEnum to make sure it's a valid type. + qweight_type = gguf.GGMLQuantizationType(qweight_type) + raise NotImplementedError(f"Unsupported GGUF quantization type: {qweight_type}") + return y.as_tensor() + + +# Copied from diffusers.quantizers.bitsandbytes.utils._create_accelerate_new_hook +def _create_accelerate_new_hook(old_hook): + r""" + Creates a new hook based on the old hook. Use it only if you know what you are doing ! This method is a copy of: + https://github.com/huggingface/peft/blob/748f7968f3a31ec06a1c2b0328993319ad9a150a/src/peft/utils/other.py#L245 with + some changes + """ + old_hook_cls = getattr(accelerate.hooks, old_hook.__class__.__name__) + old_hook_attr = old_hook.__dict__ + filtered_old_hook_attr = {} + old_hook_init_signature = inspect.signature(old_hook_cls.__init__) + for k in old_hook_attr.keys(): + if k in old_hook_init_signature.parameters: + filtered_old_hook_attr[k] = old_hook_attr[k] + new_hook = old_hook_cls(**filtered_old_hook_attr) + return new_hook + + +def _replace_with_gguf_linear(model, compute_dtype, state_dict, prefix="", modules_to_not_convert=[]): + def _should_convert_to_gguf(state_dict, prefix): + weight_key = prefix + "weight" + return weight_key in state_dict and isinstance(state_dict[weight_key], GGUFParameter) + + has_children = list(model.children()) + if not has_children: + return + + for name, module in model.named_children(): + module_prefix = prefix + name + "." + _replace_with_gguf_linear(module, compute_dtype, state_dict, module_prefix, modules_to_not_convert) + + if ( + isinstance(module, nn.Linear) + and _should_convert_to_gguf(state_dict, module_prefix) + and name not in modules_to_not_convert + ): + ctx = init_empty_weights if is_accelerate_available() else nullcontext + with ctx(): + model._modules[name] = GGUFLinear( + module.in_features, + module.out_features, + module.bias is not None, + compute_dtype=compute_dtype, + ) + model._modules[name].source_cls = type(module) + # Force requires_grad to False to avoid unexpected errors + model._modules[name].requires_grad_(False) + + return model + + +def _dequantize_gguf_and_restore_linear(model, modules_to_not_convert=[]): + for name, module in model.named_children(): + if isinstance(module, GGUFLinear) and name not in modules_to_not_convert: + device = module.weight.device + bias = getattr(module, "bias", None) + + ctx = init_empty_weights if is_accelerate_available() else nullcontext + with ctx(): + new_module = nn.Linear( + module.in_features, + module.out_features, + module.bias is not None, + device=device, + ) + new_module.weight = nn.Parameter(dequantize_gguf_tensor(module.weight)) + if bias is not None: + new_module.bias = bias + + # Create a new hook and attach it in case we use accelerate + if hasattr(module, "_hf_hook"): + old_hook = module._hf_hook + new_hook = _create_accelerate_new_hook(old_hook) + + remove_hook_from_module(module) + add_hook_to_module(new_module, new_hook) + + new_module.to(device) + model._modules[name] = new_module + + has_children = list(module.children()) + if has_children: + _dequantize_gguf_and_restore_linear(module, modules_to_not_convert) + + return model + + +# dequantize operations based on torch ports of GGUF dequantize_functions +# from City96 +# more info: https://github.com/city96/ComfyUI-GGUF/blob/main/dequant.py + + +QK_K = 256 +K_SCALE_SIZE = 12 + + +def to_uint32(x): + x = x.view(torch.uint8).to(torch.int32) + return (x[:, 0] | x[:, 1] << 8 | x[:, 2] << 16 | x[:, 3] << 24).unsqueeze(1) + + +def split_block_dims(blocks, *args): + n_max = blocks.shape[1] + dims = list(args) + [n_max - sum(args)] + return torch.split(blocks, dims, dim=1) + + +def get_scale_min(scales): + n_blocks = scales.shape[0] + scales = scales.view(torch.uint8) + scales = scales.reshape((n_blocks, 3, 4)) + + d, m, m_d = torch.split(scales, scales.shape[-2] // 3, dim=-2) + + sc = torch.cat([d & 0x3F, (m_d & 0x0F) | ((d >> 2) & 0x30)], dim=-1) + min = torch.cat([m & 0x3F, (m_d >> 4) | ((m >> 2) & 0x30)], dim=-1) + + return (sc.reshape((n_blocks, 8)), min.reshape((n_blocks, 8))) + + +def dequantize_blocks_Q8_0(blocks, block_size, type_size, dtype=None): + d, x = split_block_dims(blocks, 2) + d = d.view(torch.float16).to(dtype) + x = x.view(torch.int8) + return d * x + + +def dequantize_blocks_Q5_1(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + d, m, qh, qs = split_block_dims(blocks, 2, 2, 4) + d = d.view(torch.float16).to(dtype) + m = m.view(torch.float16).to(dtype) + qh = to_uint32(qh) + + qh = qh.reshape((n_blocks, 1)) >> torch.arange(32, device=d.device, dtype=torch.int32).reshape(1, 32) + ql = qs.reshape((n_blocks, -1, 1, block_size // 2)) >> torch.tensor( + [0, 4], device=d.device, dtype=torch.uint8 + ).reshape(1, 1, 2, 1) + qh = (qh & 1).to(torch.uint8) + ql = (ql & 0x0F).reshape((n_blocks, -1)) + + qs = ql | (qh << 4) + return (d * qs) + m + + +def dequantize_blocks_Q5_0(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + d, qh, qs = split_block_dims(blocks, 2, 4) + d = d.view(torch.float16).to(dtype) + qh = to_uint32(qh) + + qh = qh.reshape(n_blocks, 1) >> torch.arange(32, device=d.device, dtype=torch.int32).reshape(1, 32) + ql = qs.reshape(n_blocks, -1, 1, block_size // 2) >> torch.tensor( + [0, 4], device=d.device, dtype=torch.uint8 + ).reshape(1, 1, 2, 1) + + qh = (qh & 1).to(torch.uint8) + ql = (ql & 0x0F).reshape(n_blocks, -1) + + qs = (ql | (qh << 4)).to(torch.int8) - 16 + return d * qs + + +def dequantize_blocks_Q4_1(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + d, m, qs = split_block_dims(blocks, 2, 2) + d = d.view(torch.float16).to(dtype) + m = m.view(torch.float16).to(dtype) + + qs = qs.reshape((n_blocks, -1, 1, block_size // 2)) >> torch.tensor( + [0, 4], device=d.device, dtype=torch.uint8 + ).reshape(1, 1, 2, 1) + qs = (qs & 0x0F).reshape(n_blocks, -1) + + return (d * qs) + m + + +def dequantize_blocks_Q4_0(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + d, qs = split_block_dims(blocks, 2) + d = d.view(torch.float16).to(dtype) + + qs = qs.reshape((n_blocks, -1, 1, block_size // 2)) >> torch.tensor( + [0, 4], device=d.device, dtype=torch.uint8 + ).reshape((1, 1, 2, 1)) + qs = (qs & 0x0F).reshape((n_blocks, -1)).to(torch.int8) - 8 + return d * qs + + +def dequantize_blocks_Q6_K(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + ( + ql, + qh, + scales, + d, + ) = split_block_dims(blocks, QK_K // 2, QK_K // 4, QK_K // 16) + + scales = scales.view(torch.int8).to(dtype) + d = d.view(torch.float16).to(dtype) + d = (d * scales).reshape((n_blocks, QK_K // 16, 1)) + + ql = ql.reshape((n_blocks, -1, 1, 64)) >> torch.tensor([0, 4], device=d.device, dtype=torch.uint8).reshape( + (1, 1, 2, 1) + ) + ql = (ql & 0x0F).reshape((n_blocks, -1, 32)) + qh = qh.reshape((n_blocks, -1, 1, 32)) >> torch.tensor([0, 2, 4, 6], device=d.device, dtype=torch.uint8).reshape( + (1, 1, 4, 1) + ) + qh = (qh & 0x03).reshape((n_blocks, -1, 32)) + q = (ql | (qh << 4)).to(torch.int8) - 32 + q = q.reshape((n_blocks, QK_K // 16, -1)) + + return (d * q).reshape((n_blocks, QK_K)) + + +def dequantize_blocks_Q5_K(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + d, dmin, scales, qh, qs = split_block_dims(blocks, 2, 2, K_SCALE_SIZE, QK_K // 8) + + d = d.view(torch.float16).to(dtype) + dmin = dmin.view(torch.float16).to(dtype) + + sc, m = get_scale_min(scales) + + d = (d * sc).reshape((n_blocks, -1, 1)) + dm = (dmin * m).reshape((n_blocks, -1, 1)) + + ql = qs.reshape((n_blocks, -1, 1, 32)) >> torch.tensor([0, 4], device=d.device, dtype=torch.uint8).reshape( + (1, 1, 2, 1) + ) + qh = qh.reshape((n_blocks, -1, 1, 32)) >> torch.arange(0, 8, device=d.device, dtype=torch.uint8).reshape( + (1, 1, 8, 1) + ) + ql = (ql & 0x0F).reshape((n_blocks, -1, 32)) + qh = (qh & 0x01).reshape((n_blocks, -1, 32)) + q = ql | (qh << 4) + + return (d * q - dm).reshape((n_blocks, QK_K)) + + +def dequantize_blocks_Q4_K(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + d, dmin, scales, qs = split_block_dims(blocks, 2, 2, K_SCALE_SIZE) + d = d.view(torch.float16).to(dtype) + dmin = dmin.view(torch.float16).to(dtype) + + sc, m = get_scale_min(scales) + + d = (d * sc).reshape((n_blocks, -1, 1)) + dm = (dmin * m).reshape((n_blocks, -1, 1)) + + qs = qs.reshape((n_blocks, -1, 1, 32)) >> torch.tensor([0, 4], device=d.device, dtype=torch.uint8).reshape( + (1, 1, 2, 1) + ) + qs = (qs & 0x0F).reshape((n_blocks, -1, 32)) + + return (d * qs - dm).reshape((n_blocks, QK_K)) + + +def dequantize_blocks_Q3_K(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + hmask, qs, scales, d = split_block_dims(blocks, QK_K // 8, QK_K // 4, 12) + d = d.view(torch.float16).to(dtype) + + lscales, hscales = scales[:, :8], scales[:, 8:] + lscales = lscales.reshape((n_blocks, 1, 8)) >> torch.tensor([0, 4], device=d.device, dtype=torch.uint8).reshape( + (1, 2, 1) + ) + lscales = lscales.reshape((n_blocks, 16)) + hscales = hscales.reshape((n_blocks, 1, 4)) >> torch.tensor( + [0, 2, 4, 6], device=d.device, dtype=torch.uint8 + ).reshape((1, 4, 1)) + hscales = hscales.reshape((n_blocks, 16)) + scales = (lscales & 0x0F) | ((hscales & 0x03) << 4) + scales = scales.to(torch.int8) - 32 + + dl = (d * scales).reshape((n_blocks, 16, 1)) + + ql = qs.reshape((n_blocks, -1, 1, 32)) >> torch.tensor([0, 2, 4, 6], device=d.device, dtype=torch.uint8).reshape( + (1, 1, 4, 1) + ) + qh = hmask.reshape(n_blocks, -1, 1, 32) >> torch.arange(0, 8, device=d.device, dtype=torch.uint8).reshape( + (1, 1, 8, 1) + ) + ql = ql.reshape((n_blocks, 16, QK_K // 16)) & 3 + qh = (qh.reshape((n_blocks, 16, QK_K // 16)) & 1) ^ 1 + q = ql.to(torch.int8) - (qh << 2).to(torch.int8) + + return (dl * q).reshape((n_blocks, QK_K)) + + +def dequantize_blocks_Q2_K(blocks, block_size, type_size, dtype=None): + n_blocks = blocks.shape[0] + + scales, qs, d, dmin = split_block_dims(blocks, QK_K // 16, QK_K // 4, 2) + d = d.view(torch.float16).to(dtype) + dmin = dmin.view(torch.float16).to(dtype) + + # (n_blocks, 16, 1) + dl = (d * (scales & 0xF)).reshape((n_blocks, QK_K // 16, 1)) + ml = (dmin * (scales >> 4)).reshape((n_blocks, QK_K // 16, 1)) + + shift = torch.tensor([0, 2, 4, 6], device=d.device, dtype=torch.uint8).reshape((1, 1, 4, 1)) + + qs = (qs.reshape((n_blocks, -1, 1, 32)) >> shift) & 3 + qs = qs.reshape((n_blocks, QK_K // 16, 16)) + qs = dl * qs - ml + + return qs.reshape((n_blocks, -1)) + + +def dequantize_blocks_BF16(blocks, block_size, type_size, dtype=None): + return (blocks.view(torch.int16).to(torch.int32) << 16).view(torch.float32) + + +# this part from calcuis (gguf.org) +# more info: https://github.com/calcuis/gguf-connector/blob/main/src/gguf_connector/quant2c.py + + +def dequantize_blocks_IQ4_NL(blocks, block_size, type_size, dtype=None): + kvalues = torch.tensor( + [-127, -104, -83, -65, -49, -35, -22, -10, 1, 13, 25, 38, 53, 69, 89, 113], + dtype=torch.float32, + device=blocks.device, + ) + n_blocks = blocks.shape[0] + d, qs = split_block_dims(blocks, 2) + d = d.view(torch.float16).to(dtype) + qs = qs.reshape((n_blocks, -1, 1, block_size // 2)) >> torch.tensor( + [0, 4], device=blocks.device, dtype=torch.uint8 + ).reshape((1, 1, 2, 1)) + qs = (qs & 15).reshape((n_blocks, -1)).to(torch.int64) + kvalues = kvalues.view(1, 1, 16) + qs = qs.unsqueeze(-1) + qs = torch.gather(kvalues.expand(qs.shape[0], qs.shape[1], 16), 2, qs) + qs = qs.squeeze(-1).to(dtype) + return d * qs + + +def dequantize_blocks_IQ4_XS(blocks, block_size, type_size, dtype=None): + kvalues = torch.tensor( + [-127, -104, -83, -65, -49, -35, -22, -10, 1, 13, 25, 38, 53, 69, 89, 113], + dtype=torch.float32, + device=blocks.device, + ) + n_blocks = blocks.shape[0] + d, scales_h, scales_l, qs = split_block_dims(blocks, 2, 2, QK_K // 64) + d = d.view(torch.float16).to(dtype) + scales_h = scales_h.view(torch.int16) + scales_l = scales_l.reshape((n_blocks, -1, 1)) >> torch.tensor( + [0, 4], device=blocks.device, dtype=torch.uint8 + ).reshape((1, 1, 2)) + scales_h = scales_h.reshape((n_blocks, 1, -1)) >> torch.tensor( + [2 * i for i in range(QK_K // 32)], device=blocks.device, dtype=torch.uint8 + ).reshape((1, -1, 1)) + scales_l = scales_l.reshape((n_blocks, -1)) & 0x0F + scales_h = scales_h.reshape((n_blocks, -1)) & 0x03 + scales = (scales_l | (scales_h << 4)) - 32 + dl = (d * scales.to(dtype)).reshape((n_blocks, -1, 1)) + shifts_q = torch.tensor([0, 4], device=blocks.device, dtype=torch.uint8).reshape(1, 1, 2, 1) + qs = qs.reshape((n_blocks, -1, 1, 16)) >> shifts_q + qs = (qs & 15).reshape((n_blocks, -1, 32)).to(torch.int64) + kvalues = kvalues.view(1, 1, 1, 16) + qs = qs.unsqueeze(-1) + qs = torch.gather(kvalues.expand(qs.shape[0], qs.shape[1], qs.shape[2], 16), 3, qs) + qs = qs.squeeze(-1).to(dtype) + return (dl * qs).reshape(n_blocks, -1) + + +GGML_QUANT_SIZES = gguf.GGML_QUANT_SIZES +dequantize_functions = { + gguf.GGMLQuantizationType.IQ4_NL: dequantize_blocks_IQ4_NL, + gguf.GGMLQuantizationType.IQ4_XS: dequantize_blocks_IQ4_XS, + gguf.GGMLQuantizationType.BF16: dequantize_blocks_BF16, + gguf.GGMLQuantizationType.Q8_0: dequantize_blocks_Q8_0, + gguf.GGMLQuantizationType.Q5_1: dequantize_blocks_Q5_1, + gguf.GGMLQuantizationType.Q5_0: dequantize_blocks_Q5_0, + gguf.GGMLQuantizationType.Q4_1: dequantize_blocks_Q4_1, + gguf.GGMLQuantizationType.Q4_0: dequantize_blocks_Q4_0, + gguf.GGMLQuantizationType.Q6_K: dequantize_blocks_Q6_K, + gguf.GGMLQuantizationType.Q5_K: dequantize_blocks_Q5_K, + gguf.GGMLQuantizationType.Q4_K: dequantize_blocks_Q4_K, + gguf.GGMLQuantizationType.Q3_K: dequantize_blocks_Q3_K, + gguf.GGMLQuantizationType.Q2_K: dequantize_blocks_Q2_K, +} +SUPPORTED_GGUF_QUANT_TYPES = list(dequantize_functions.keys()) + + +def _quant_shape_from_byte_shape(shape, type_size, block_size): + return (*shape[:-1], shape[-1] // type_size * block_size) + + +def dequantize_gguf_tensor(tensor): + if not hasattr(tensor, "quant_type"): + return tensor + + quant_type = tensor.quant_type + dequant_fn = dequantize_functions[quant_type] + + block_size, type_size = GGML_QUANT_SIZES[quant_type] + + tensor = tensor.view(torch.uint8) + shape = _quant_shape_from_byte_shape(tensor.shape, type_size, block_size) + + n_blocks = tensor.numel() // type_size + blocks = tensor.reshape((n_blocks, type_size)) + + dequant = dequant_fn(blocks, block_size, type_size) + dequant = dequant.reshape(shape) + + return dequant.as_tensor() + + +class GGUFParameter(torch.nn.Parameter): + def __new__(cls, data, requires_grad=False, quant_type=None): + data = data if data is not None else torch.empty(0) + self = torch.Tensor._make_subclass(cls, data, requires_grad) + self.quant_type = quant_type + block_size, type_size = GGML_QUANT_SIZES[quant_type] + self.quant_shape = _quant_shape_from_byte_shape(self.shape, type_size, block_size) + + return self + + def as_tensor(self): + return torch.Tensor._make_subclass(torch.Tensor, self, self.requires_grad) + + @staticmethod + def _extract_quant_type(args): + # When converting from original format checkpoints we often use splits, cats etc on tensors + # this method ensures that the returned tensor type from those operations remains GGUFParameter + # so that we preserve quant_type information + for arg in args: + if isinstance(arg, list) and isinstance(arg[0], GGUFParameter): + return arg[0].quant_type + if isinstance(arg, GGUFParameter): + return arg.quant_type + return None + + @classmethod + def __torch_function__(cls, func, types, args=(), kwargs=None): + if kwargs is None: + kwargs = {} + + result = super().__torch_function__(func, types, args, kwargs) + + if isinstance(result, torch.Tensor): + quant_type = cls._extract_quant_type(args) + return cls(result, quant_type=quant_type) + # Handle tuples and lists + elif type(result) in (list, tuple): + # Preserve the original type (tuple or list) + quant_type = cls._extract_quant_type(args) + wrapped = [cls(x, quant_type=quant_type) if isinstance(x, torch.Tensor) else x for x in result] + return type(result)(wrapped) + else: + return result + + +class GGUFLinear(nn.Linear): + def __init__( + self, + in_features, + out_features, + bias=False, + compute_dtype=None, + device=None, + ) -> None: + super().__init__(in_features, out_features, bias, device) + self.compute_dtype = compute_dtype + self.device = device + + def forward(self, inputs: torch.Tensor): + if ops is not None and self.weight.is_cuda and inputs.is_cuda: + return self.forward_cuda(inputs) + return self.forward_native(inputs) + + def forward_native(self, inputs: torch.Tensor): + weight = dequantize_gguf_tensor(self.weight) + weight = weight.to(self.compute_dtype) + bias = self.bias.to(self.compute_dtype) if self.bias is not None else None + + output = torch.nn.functional.linear(inputs, weight, bias) + return output + + def forward_cuda(self, inputs: torch.Tensor): + quant_type = self.weight.quant_type + output = _fused_mul_mat_gguf(inputs.to(self.compute_dtype), self.weight, quant_type) + if self.bias is not None: + output += self.bias.to(self.compute_dtype) + return output diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/modelopt/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/modelopt/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ae0951cb30d140011f6b3595036f3ca225b423f4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/modelopt/__init__.py @@ -0,0 +1 @@ +from .modelopt_quantizer import NVIDIAModelOptQuantizer diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/modelopt/modelopt_quantizer.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/modelopt/modelopt_quantizer.py new file mode 100644 index 0000000000000000000000000000000000000000..534f752321b32a0d7de823a4635620fc15ad288f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/modelopt/modelopt_quantizer.py @@ -0,0 +1,190 @@ +from typing import TYPE_CHECKING, Any, Dict, List, Union + +from ...utils import ( + get_module_from_name, + is_accelerate_available, + is_nvidia_modelopt_available, + is_torch_available, + logging, +) +from ..base import DiffusersQuantizer + + +if TYPE_CHECKING: + from ...models.modeling_utils import ModelMixin + + +if is_torch_available(): + import torch + import torch.nn as nn + +if is_accelerate_available(): + from accelerate.utils import set_module_tensor_to_device + + +logger = logging.get_logger(__name__) + + +class NVIDIAModelOptQuantizer(DiffusersQuantizer): + r""" + Diffusers Quantizer for TensorRT Model Optimizer + """ + + use_keep_in_fp32_modules = True + requires_calibration = False + required_packages = ["nvidia_modelopt"] + + def __init__(self, quantization_config, **kwargs): + super().__init__(quantization_config, **kwargs) + + def validate_environment(self, *args, **kwargs): + if not is_nvidia_modelopt_available(): + raise ImportError( + "Loading an nvidia-modelopt quantized model requires nvidia-modelopt library (`pip install nvidia-modelopt`)" + ) + + self.offload = False + + device_map = kwargs.get("device_map", None) + if isinstance(device_map, dict): + if "cpu" in device_map.values() or "disk" in device_map.values(): + if self.pre_quantized: + raise ValueError( + "You are attempting to perform cpu/disk offload with a pre-quantized modelopt model " + "This is not supported yet. Please remove the CPU or disk device from the `device_map` argument." + ) + else: + self.offload = True + + def check_if_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + state_dict: Dict[str, Any], + **kwargs, + ): + # ModelOpt imports diffusers internally. This is here to prevent circular imports + from modelopt.torch.quantization.utils import is_quantized + + module, tensor_name = get_module_from_name(model, param_name) + if self.pre_quantized: + return True + elif is_quantized(module) and "weight" in tensor_name: + return True + return False + + def create_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + target_device: "torch.device", + *args, + **kwargs, + ): + """ + Create the quantized parameter by calling .calibrate() after setting it to the module. + """ + # ModelOpt imports diffusers internally. This is here to prevent circular imports + import modelopt.torch.quantization as mtq + + dtype = kwargs.get("dtype", torch.float32) + module, tensor_name = get_module_from_name(model, param_name) + if self.pre_quantized: + module._parameters[tensor_name] = torch.nn.Parameter(param_value.to(device=target_device)) + else: + set_module_tensor_to_device(model, param_name, target_device, param_value, dtype) + mtq.calibrate( + module, self.quantization_config.modelopt_config["algorithm"], self.quantization_config.forward_loop + ) + mtq.compress(module) + module.weight.requires_grad = False + + def adjust_max_memory(self, max_memory: Dict[str, Union[int, str]]) -> Dict[str, Union[int, str]]: + max_memory = {key: val * 0.90 for key, val in max_memory.items()} + return max_memory + + def adjust_target_dtype(self, target_dtype: "torch.dtype") -> "torch.dtype": + if self.quantization_config.quant_type == "FP8": + target_dtype = torch.float8_e4m3fn + return target_dtype + + def update_torch_dtype(self, torch_dtype: "torch.dtype" = None) -> "torch.dtype": + if torch_dtype is None: + logger.info("You did not specify `torch_dtype` in `from_pretrained`. Setting it to `torch.float32`.") + torch_dtype = torch.float32 + return torch_dtype + + def get_conv_param_names(self, model: "ModelMixin") -> List[str]: + """ + Get parameter names for all convolutional layers in a HuggingFace ModelMixin. Includes Conv1d/2d/3d and + ConvTranspose1d/2d/3d. + """ + conv_types = ( + nn.Conv1d, + nn.Conv2d, + nn.Conv3d, + nn.ConvTranspose1d, + nn.ConvTranspose2d, + nn.ConvTranspose3d, + ) + + conv_param_names = [] + for name, module in model.named_modules(): + if isinstance(module, conv_types): + for param_name, _ in module.named_parameters(recurse=False): + conv_param_names.append(f"{name}.{param_name}") + + return conv_param_names + + def _process_model_before_weight_loading( + self, + model: "ModelMixin", + device_map, + keep_in_fp32_modules: List[str] = [], + **kwargs, + ): + # ModelOpt imports diffusers internally. This is here to prevent circular imports + import modelopt.torch.opt as mto + + if self.pre_quantized: + return + + modules_to_not_convert = self.quantization_config.modules_to_not_convert + + if modules_to_not_convert is None: + modules_to_not_convert = [] + if isinstance(modules_to_not_convert, str): + modules_to_not_convert = [modules_to_not_convert] + modules_to_not_convert.extend(keep_in_fp32_modules) + if self.quantization_config.disable_conv_quantization: + modules_to_not_convert.extend(self.get_conv_param_names(model)) + + for module in modules_to_not_convert: + self.quantization_config.modelopt_config["quant_cfg"]["*" + module + "*"] = {"enable": False} + self.quantization_config.modules_to_not_convert = modules_to_not_convert + mto.apply_mode(model, mode=[("quantize", self.quantization_config.modelopt_config)]) + model.config.quantization_config = self.quantization_config + + def _process_model_after_weight_loading(self, model, **kwargs): + # ModelOpt imports diffusers internally. This is here to prevent circular imports + from modelopt.torch.opt import ModeloptStateManager + + if self.pre_quantized: + return model + + for _, m in model.named_modules(): + if hasattr(m, ModeloptStateManager._state_key) and m is not model: + ModeloptStateManager.remove_state(m) + + return model + + @property + def is_trainable(self): + return True + + @property + def is_serializable(self): + self.quantization_config.check_model_patching(operation="saving") + return True diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/pipe_quant_config.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/pipe_quant_config.py new file mode 100644 index 0000000000000000000000000000000000000000..f75a337341a98b6a1ae89397d03917924d7854da --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/pipe_quant_config.py @@ -0,0 +1,205 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Dict, List, Optional, Union + +from ..utils import is_transformers_available, logging +from .quantization_config import QuantizationConfigMixin as DiffQuantConfigMixin + + +try: + from transformers.utils.quantization_config import QuantizationConfigMixin as TransformersQuantConfigMixin +except ImportError: + + class TransformersQuantConfigMixin: + pass + + +logger = logging.get_logger(__name__) + + +class PipelineQuantizationConfig: + """ + Configuration class to be used when applying quantization on-the-fly to [`~DiffusionPipeline.from_pretrained`]. + + Args: + quant_backend (`str`): Quantization backend to be used. When using this option, we assume that the backend + is available to both `diffusers` and `transformers`. + quant_kwargs (`dict`): Params to initialize the quantization backend class. + components_to_quantize (`list`): Components of a pipeline to be quantized. + quant_mapping (`dict`): Mapping defining the quantization specs to be used for the pipeline + components. When using this argument, users are not expected to provide `quant_backend`, `quant_kawargs`, + and `components_to_quantize`. + """ + + def __init__( + self, + quant_backend: str = None, + quant_kwargs: Dict[str, Union[str, float, int, dict]] = None, + components_to_quantize: Optional[Union[List[str], str]] = None, + quant_mapping: Dict[str, Union[DiffQuantConfigMixin, "TransformersQuantConfigMixin"]] = None, + ): + self.quant_backend = quant_backend + # Initialize kwargs to be {} to set to the defaults. + self.quant_kwargs = quant_kwargs or {} + if components_to_quantize: + if isinstance(components_to_quantize, str): + components_to_quantize = [components_to_quantize] + self.components_to_quantize = components_to_quantize + self.quant_mapping = quant_mapping + self.config_mapping = {} # book-keeping Example: `{module_name: quant_config}` + self.post_init() + + def post_init(self): + quant_mapping = self.quant_mapping + self.is_granular = True if quant_mapping is not None else False + + self._validate_init_args() + + def _validate_init_args(self): + if self.quant_backend and self.quant_mapping: + raise ValueError("Both `quant_backend` and `quant_mapping` cannot be specified at the same time.") + + if not self.quant_mapping and not self.quant_backend: + raise ValueError("Must provide a `quant_backend` when not providing a `quant_mapping`.") + + if not self.quant_kwargs and not self.quant_mapping: + raise ValueError("Both `quant_kwargs` and `quant_mapping` cannot be None.") + + if self.quant_backend is not None: + self._validate_init_kwargs_in_backends() + + if self.quant_mapping is not None: + self._validate_quant_mapping_args() + + def _validate_init_kwargs_in_backends(self): + quant_backend = self.quant_backend + + self._check_backend_availability(quant_backend) + + quant_config_mapping_transformers, quant_config_mapping_diffusers = self._get_quant_config_list() + + if quant_config_mapping_transformers is not None: + init_kwargs_transformers = inspect.signature(quant_config_mapping_transformers[quant_backend].__init__) + init_kwargs_transformers = {name for name in init_kwargs_transformers.parameters if name != "self"} + else: + init_kwargs_transformers = None + + init_kwargs_diffusers = inspect.signature(quant_config_mapping_diffusers[quant_backend].__init__) + init_kwargs_diffusers = {name for name in init_kwargs_diffusers.parameters if name != "self"} + + if init_kwargs_transformers != init_kwargs_diffusers: + raise ValueError( + "The signatures of the __init__ methods of the quantization config classes in `diffusers` and `transformers` don't match. " + f"Please provide a `quant_mapping` instead, in the {self.__class__.__name__} class. Refer to [the docs](https://huggingface.co/docs/diffusers/main/en/quantization/overview#pipeline-level-quantization) to learn more about how " + "this mapping would look like." + ) + + def _validate_quant_mapping_args(self): + quant_mapping = self.quant_mapping + transformers_map, diffusers_map = self._get_quant_config_list() + + available_transformers = list(transformers_map.values()) if transformers_map else None + available_diffusers = list(diffusers_map.values()) + + for module_name, config in quant_mapping.items(): + if any(isinstance(config, cfg) for cfg in available_diffusers): + continue + + if available_transformers and any(isinstance(config, cfg) for cfg in available_transformers): + continue + + if available_transformers: + raise ValueError( + f"Provided config for module_name={module_name} could not be found. " + f"Available diffusers configs: {available_diffusers}; " + f"Available transformers configs: {available_transformers}." + ) + else: + raise ValueError( + f"Provided config for module_name={module_name} could not be found. " + f"Available diffusers configs: {available_diffusers}." + ) + + def _check_backend_availability(self, quant_backend: str): + quant_config_mapping_transformers, quant_config_mapping_diffusers = self._get_quant_config_list() + + available_backends_transformers = ( + list(quant_config_mapping_transformers.keys()) if quant_config_mapping_transformers else None + ) + available_backends_diffusers = list(quant_config_mapping_diffusers.keys()) + + if ( + available_backends_transformers and quant_backend not in available_backends_transformers + ) or quant_backend not in quant_config_mapping_diffusers: + error_message = f"Provided quant_backend={quant_backend} was not found." + if available_backends_transformers: + error_message += f"\nAvailable ones (transformers): {available_backends_transformers}." + error_message += f"\nAvailable ones (diffusers): {available_backends_diffusers}." + raise ValueError(error_message) + + def _resolve_quant_config(self, is_diffusers: bool = True, module_name: str = None): + quant_config_mapping_transformers, quant_config_mapping_diffusers = self._get_quant_config_list() + + quant_mapping = self.quant_mapping + components_to_quantize = self.components_to_quantize + + # Granular case + if self.is_granular and module_name in quant_mapping: + logger.debug(f"Initializing quantization config class for {module_name}.") + config = quant_mapping[module_name] + self.config_mapping.update({module_name: config}) + return config + + # Global config case + else: + should_quantize = False + # Only quantize the modules requested for. + if components_to_quantize and module_name in components_to_quantize: + should_quantize = True + # No specification for `components_to_quantize` means all modules should be quantized. + elif not self.is_granular and not components_to_quantize: + should_quantize = True + + if should_quantize: + logger.debug(f"Initializing quantization config class for {module_name}.") + mapping_to_use = quant_config_mapping_diffusers if is_diffusers else quant_config_mapping_transformers + quant_config_cls = mapping_to_use[self.quant_backend] + quant_kwargs = self.quant_kwargs + quant_obj = quant_config_cls(**quant_kwargs) + self.config_mapping.update({module_name: quant_obj}) + return quant_obj + + # Fallback: no applicable configuration found. + return None + + def _get_quant_config_list(self): + if is_transformers_available(): + from transformers.quantizers.auto import ( + AUTO_QUANTIZATION_CONFIG_MAPPING as quant_config_mapping_transformers, + ) + else: + quant_config_mapping_transformers = None + + from ..quantizers.auto import AUTO_QUANTIZATION_CONFIG_MAPPING as quant_config_mapping_diffusers + + return quant_config_mapping_transformers, quant_config_mapping_diffusers + + def __repr__(self): + out = "" + config_mapping = dict(sorted(self.config_mapping.copy().items())) + for module_name, config in config_mapping.items(): + out += f"{module_name} {config}" + return out diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quantization_config.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quantization_config.py new file mode 100644 index 0000000000000000000000000000000000000000..5dd8f56717df4f2bb886f2ad7ba1d87d6188030f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quantization_config.py @@ -0,0 +1,1038 @@ +#!/usr/bin/env python +# coding=utf-8 + +# Copyright 2023 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" +Adapted from +https://github.com/huggingface/transformers/blob/52cb4034ada381fe1ffe8d428a1076e5411a8026/src/transformers/utils/quantization_config.py +""" + +import copy +import dataclasses +import importlib.metadata +import inspect +import json +import os +import warnings +from dataclasses import dataclass, is_dataclass +from enum import Enum +from functools import partial +from typing import Any, Callable, Dict, List, Optional, Union + +from packaging import version + +from ..utils import is_torch_available, is_torchao_available, is_torchao_version, logging + + +if is_torch_available(): + import torch + +logger = logging.get_logger(__name__) + + +class QuantizationMethod(str, Enum): + BITS_AND_BYTES = "bitsandbytes" + GGUF = "gguf" + TORCHAO = "torchao" + QUANTO = "quanto" + MODELOPT = "modelopt" + + +if is_torchao_available(): + from torchao.quantization.quant_primitives import MappingType + + class TorchAoJSONEncoder(json.JSONEncoder): + def default(self, obj): + if isinstance(obj, MappingType): + return obj.name + return super().default(obj) + + +@dataclass +class QuantizationConfigMixin: + """ + Mixin class for quantization config + """ + + quant_method: QuantizationMethod + _exclude_attributes_at_init = [] + + @classmethod + def from_dict(cls, config_dict, return_unused_kwargs=False, **kwargs): + """ + Instantiates a [`QuantizationConfigMixin`] from a Python dictionary of parameters. + + Args: + config_dict (`Dict[str, Any]`): + Dictionary that will be used to instantiate the configuration object. + return_unused_kwargs (`bool`, *optional*, defaults to `False`): + Whether or not to return a list of unused keyword arguments. Used for `from_pretrained` method in + `PreTrainedModel`. + kwargs (`Dict[str, Any]`): + Additional parameters from which to initialize the configuration object. + + Returns: + [`QuantizationConfigMixin`]: The configuration object instantiated from those parameters. + """ + + config = cls(**config_dict) + + to_remove = [] + for key, value in kwargs.items(): + if hasattr(config, key): + setattr(config, key, value) + to_remove.append(key) + for key in to_remove: + kwargs.pop(key, None) + + if return_unused_kwargs: + return config, kwargs + else: + return config + + def to_json_file(self, json_file_path: Union[str, os.PathLike]): + """ + Save this instance to a JSON file. + + Args: + json_file_path (`str` or `os.PathLike`): + Path to the JSON file in which this configuration instance's parameters will be saved. + use_diff (`bool`, *optional*, defaults to `True`): + If set to `True`, only the difference between the config instance and the default + `QuantizationConfig()` is serialized to JSON file. + """ + with open(json_file_path, "w", encoding="utf-8") as writer: + config_dict = self.to_dict() + json_string = json.dumps(config_dict, indent=2, sort_keys=True) + "\n" + + writer.write(json_string) + + def to_dict(self) -> Dict[str, Any]: + """ + Serializes this instance to a Python dictionary. Returns: + `Dict[str, Any]`: Dictionary of all the attributes that make up this configuration instance. + """ + return copy.deepcopy(self.__dict__) + + def __iter__(self): + """allows `dict(obj)` for situations where obj may be a dict or QuantizationConfigMixin""" + for attr, value in copy.deepcopy(self.__dict__).items(): + yield attr, value + + def __repr__(self): + return f"{self.__class__.__name__} {self.to_json_string()}" + + def to_json_string(self, use_diff: bool = True) -> str: + """ + Serializes this instance to a JSON string. + + Args: + use_diff (`bool`, *optional*, defaults to `True`): + If set to `True`, only the difference between the config instance and the default `PretrainedConfig()` + is serialized to JSON string. + + Returns: + `str`: String containing all the attributes that make up this configuration instance in JSON format. + """ + if use_diff is True: + config_dict = self.to_diff_dict() + else: + config_dict = self.to_dict() + return json.dumps(config_dict, indent=2, sort_keys=True) + "\n" + + def update(self, **kwargs): + """ + Updates attributes of this class instance with attributes from `kwargs` if they match existing attributes, + returning all the unused kwargs. + + Args: + kwargs (`Dict[str, Any]`): + Dictionary of attributes to tentatively update this class. + + Returns: + `Dict[str, Any]`: Dictionary containing all the key-value pairs that were not used to update the instance. + """ + to_remove = [] + for key, value in kwargs.items(): + if hasattr(self, key): + setattr(self, key, value) + to_remove.append(key) + + # Remove all the attributes that were updated, without modifying the input dict + unused_kwargs = {key: value for key, value in kwargs.items() if key not in to_remove} + return unused_kwargs + + +@dataclass +class BitsAndBytesConfig(QuantizationConfigMixin): + """ + This is a wrapper class about all possible attributes and features that you can play with a model that has been + loaded using `bitsandbytes`. + + This replaces `load_in_8bit` or `load_in_4bit` therefore both options are mutually exclusive. + + Currently only supports `LLM.int8()`, `FP4`, and `NF4` quantization. If more methods are added to `bitsandbytes`, + then more arguments will be added to this class. + + Args: + load_in_8bit (`bool`, *optional*, defaults to `False`): + This flag is used to enable 8-bit quantization with LLM.int8(). + load_in_4bit (`bool`, *optional*, defaults to `False`): + This flag is used to enable 4-bit quantization by replacing the Linear layers with FP4/NF4 layers from + `bitsandbytes`. + llm_int8_threshold (`float`, *optional*, defaults to 6.0): + This corresponds to the outlier threshold for outlier detection as described in `LLM.int8() : 8-bit Matrix + Multiplication for Transformers at Scale` paper: https://huggingface.co/papers/2208.07339 Any hidden states + value that is above this threshold will be considered an outlier and the operation on those values will be + done in fp16. Values are usually normally distributed, that is, most values are in the range [-3.5, 3.5], + but there are some exceptional systematic outliers that are very differently distributed for large models. + These outliers are often in the interval [-60, -6] or [6, 60]. Int8 quantization works well for values of + magnitude ~5, but beyond that, there is a significant performance penalty. A good default threshold is 6, + but a lower threshold might be needed for more unstable models (small models, fine-tuning). + llm_int8_skip_modules (`List[str]`, *optional*): + An explicit list of the modules that we do not want to convert in 8-bit. This is useful for models such as + Jukebox that has several heads in different places and not necessarily at the last position. For example + for `CausalLM` models, the last `lm_head` is typically kept in its original `dtype`. + llm_int8_enable_fp32_cpu_offload (`bool`, *optional*, defaults to `False`): + This flag is used for advanced use cases and users that are aware of this feature. If you want to split + your model in different parts and run some parts in int8 on GPU and some parts in fp32 on CPU, you can use + this flag. This is useful for offloading large models such as `google/flan-t5-xxl`. Note that the int8 + operations will not be run on CPU. + llm_int8_has_fp16_weight (`bool`, *optional*, defaults to `False`): + This flag runs LLM.int8() with 16-bit main weights. This is useful for fine-tuning as the weights do not + have to be converted back and forth for the backward pass. + bnb_4bit_compute_dtype (`torch.dtype` or str, *optional*, defaults to `torch.float32`): + This sets the computational type which might be different than the input type. For example, inputs might be + fp32, but computation can be set to bf16 for speedups. + bnb_4bit_quant_type (`str`, *optional*, defaults to `"fp4"`): + This sets the quantization data type in the bnb.nn.Linear4Bit layers. Options are FP4 and NF4 data types + which are specified by `fp4` or `nf4`. + bnb_4bit_use_double_quant (`bool`, *optional*, defaults to `False`): + This flag is used for nested quantization where the quantization constants from the first quantization are + quantized again. + bnb_4bit_quant_storage (`torch.dtype` or str, *optional*, defaults to `torch.uint8`): + This sets the storage type to pack the quanitzed 4-bit prarams. + kwargs (`Dict[str, Any]`, *optional*): + Additional parameters from which to initialize the configuration object. + """ + + _exclude_attributes_at_init = ["_load_in_4bit", "_load_in_8bit", "quant_method"] + + def __init__( + self, + load_in_8bit=False, + load_in_4bit=False, + llm_int8_threshold=6.0, + llm_int8_skip_modules=None, + llm_int8_enable_fp32_cpu_offload=False, + llm_int8_has_fp16_weight=False, + bnb_4bit_compute_dtype=None, + bnb_4bit_quant_type="fp4", + bnb_4bit_use_double_quant=False, + bnb_4bit_quant_storage=None, + **kwargs, + ): + self.quant_method = QuantizationMethod.BITS_AND_BYTES + + if load_in_4bit and load_in_8bit: + raise ValueError("load_in_4bit and load_in_8bit are both True, but only one can be used at the same time") + + self._load_in_8bit = load_in_8bit + self._load_in_4bit = load_in_4bit + self.llm_int8_threshold = llm_int8_threshold + self.llm_int8_skip_modules = llm_int8_skip_modules + self.llm_int8_enable_fp32_cpu_offload = llm_int8_enable_fp32_cpu_offload + self.llm_int8_has_fp16_weight = llm_int8_has_fp16_weight + self.bnb_4bit_quant_type = bnb_4bit_quant_type + self.bnb_4bit_use_double_quant = bnb_4bit_use_double_quant + + if bnb_4bit_compute_dtype is None: + self.bnb_4bit_compute_dtype = torch.float32 + elif isinstance(bnb_4bit_compute_dtype, str): + self.bnb_4bit_compute_dtype = getattr(torch, bnb_4bit_compute_dtype) + elif isinstance(bnb_4bit_compute_dtype, torch.dtype): + self.bnb_4bit_compute_dtype = bnb_4bit_compute_dtype + else: + raise ValueError("bnb_4bit_compute_dtype must be a string or a torch.dtype") + + if bnb_4bit_quant_storage is None: + self.bnb_4bit_quant_storage = torch.uint8 + elif isinstance(bnb_4bit_quant_storage, str): + if bnb_4bit_quant_storage not in [ + "float16", + "float32", + "int8", + "uint8", + "float64", + "bfloat16", + ]: + raise ValueError( + "`bnb_4bit_quant_storage` must be a valid string (one of 'float16', 'float32', 'int8', 'uint8', 'float64', 'bfloat16') " + ) + self.bnb_4bit_quant_storage = getattr(torch, bnb_4bit_quant_storage) + elif isinstance(bnb_4bit_quant_storage, torch.dtype): + self.bnb_4bit_quant_storage = bnb_4bit_quant_storage + else: + raise ValueError("bnb_4bit_quant_storage must be a string or a torch.dtype") + + if kwargs and not all(k in self._exclude_attributes_at_init for k in kwargs): + logger.warning(f"Unused kwargs: {list(kwargs.keys())}. These kwargs are not used in {self.__class__}.") + + self.post_init() + + @property + def load_in_4bit(self): + return self._load_in_4bit + + @load_in_4bit.setter + def load_in_4bit(self, value: bool): + if not isinstance(value, bool): + raise TypeError("load_in_4bit must be a boolean") + + if self.load_in_8bit and value: + raise ValueError("load_in_4bit and load_in_8bit are both True, but only one can be used at the same time") + self._load_in_4bit = value + + @property + def load_in_8bit(self): + return self._load_in_8bit + + @load_in_8bit.setter + def load_in_8bit(self, value: bool): + if not isinstance(value, bool): + raise TypeError("load_in_8bit must be a boolean") + + if self.load_in_4bit and value: + raise ValueError("load_in_4bit and load_in_8bit are both True, but only one can be used at the same time") + self._load_in_8bit = value + + def post_init(self): + r""" + Safety checker that arguments are correct - also replaces some NoneType arguments with their default values. + """ + if not isinstance(self.load_in_4bit, bool): + raise TypeError("load_in_4bit must be a boolean") + + if not isinstance(self.load_in_8bit, bool): + raise TypeError("load_in_8bit must be a boolean") + + if not isinstance(self.llm_int8_threshold, float): + raise TypeError("llm_int8_threshold must be a float") + + if self.llm_int8_skip_modules is not None and not isinstance(self.llm_int8_skip_modules, list): + raise TypeError("llm_int8_skip_modules must be a list of strings") + if not isinstance(self.llm_int8_enable_fp32_cpu_offload, bool): + raise TypeError("llm_int8_enable_fp32_cpu_offload must be a boolean") + + if not isinstance(self.llm_int8_has_fp16_weight, bool): + raise TypeError("llm_int8_has_fp16_weight must be a boolean") + + if self.bnb_4bit_compute_dtype is not None and not isinstance(self.bnb_4bit_compute_dtype, torch.dtype): + raise TypeError("bnb_4bit_compute_dtype must be torch.dtype") + + if not isinstance(self.bnb_4bit_quant_type, str): + raise TypeError("bnb_4bit_quant_type must be a string") + + if not isinstance(self.bnb_4bit_use_double_quant, bool): + raise TypeError("bnb_4bit_use_double_quant must be a boolean") + + if self.load_in_4bit and not version.parse(importlib.metadata.version("bitsandbytes")) >= version.parse( + "0.39.0" + ): + raise ValueError( + "4 bit quantization requires bitsandbytes>=0.39.0 - please upgrade your bitsandbytes version" + ) + + def is_quantizable(self): + r""" + Returns `True` if the model is quantizable, `False` otherwise. + """ + return self.load_in_8bit or self.load_in_4bit + + def quantization_method(self): + r""" + This method returns the quantization method used for the model. If the model is not quantizable, it returns + `None`. + """ + if self.load_in_8bit: + return "llm_int8" + elif self.load_in_4bit and self.bnb_4bit_quant_type == "fp4": + return "fp4" + elif self.load_in_4bit and self.bnb_4bit_quant_type == "nf4": + return "nf4" + else: + return None + + def to_dict(self) -> Dict[str, Any]: + """ + Serializes this instance to a Python dictionary. Returns: + `Dict[str, Any]`: Dictionary of all the attributes that make up this configuration instance. + """ + output = copy.deepcopy(self.__dict__) + output["bnb_4bit_compute_dtype"] = str(output["bnb_4bit_compute_dtype"]).split(".")[1] + output["bnb_4bit_quant_storage"] = str(output["bnb_4bit_quant_storage"]).split(".")[1] + output["load_in_4bit"] = self.load_in_4bit + output["load_in_8bit"] = self.load_in_8bit + + return output + + def __repr__(self): + config_dict = self.to_dict() + return f"{self.__class__.__name__} {json.dumps(config_dict, indent=2, sort_keys=True)}\n" + + def to_diff_dict(self) -> Dict[str, Any]: + """ + Removes all attributes from config which correspond to the default config attributes for better readability and + serializes to a Python dictionary. + + Returns: + `Dict[str, Any]`: Dictionary of all the attributes that make up this configuration instance, + """ + config_dict = self.to_dict() + + # get the default config dict + default_config_dict = BitsAndBytesConfig().to_dict() + + serializable_config_dict = {} + + # only serialize values that differ from the default config + for key, value in config_dict.items(): + if value != default_config_dict[key]: + serializable_config_dict[key] = value + + return serializable_config_dict + + +@dataclass +class GGUFQuantizationConfig(QuantizationConfigMixin): + """This is a config class for GGUF Quantization techniques. + + Args: + compute_dtype: (`torch.dtype`, defaults to `torch.float32`): + This sets the computational type which might be different than the input type. For example, inputs might be + fp32, but computation can be set to bf16 for speedups. + + """ + + def __init__(self, compute_dtype: Optional["torch.dtype"] = None): + self.quant_method = QuantizationMethod.GGUF + self.compute_dtype = compute_dtype + self.pre_quantized = True + + # TODO: (Dhruv) Add this as an init argument when we can support loading unquantized checkpoints. + self.modules_to_not_convert = None + + if self.compute_dtype is None: + self.compute_dtype = torch.float32 + + +@dataclass +class TorchAoConfig(QuantizationConfigMixin): + """This is a config class for torchao quantization/sparsity techniques. + + Args: + quant_type (Union[`str`, AOBaseConfig]): + The type of quantization we want to use, currently supporting: + - **Integer quantization:** + - Full function names: `int4_weight_only`, `int8_dynamic_activation_int4_weight`, + `int8_weight_only`, `int8_dynamic_activation_int8_weight` + - Shorthands: `int4wo`, `int4dq`, `int8wo`, `int8dq` + + - **Floating point 8-bit quantization:** + - Full function names: `float8_weight_only`, `float8_dynamic_activation_float8_weight`, + `float8_static_activation_float8_weight` + - Shorthands: `float8wo`, `float8wo_e5m2`, `float8wo_e4m3`, `float8dq`, `float8dq_e4m3`, + `float8_e4m3_tensor`, `float8_e4m3_row`, + + - **Floating point X-bit quantization:** + - Full function names: `fpx_weight_only` + - Shorthands: `fpX_eAwB`, where `X` is the number of bits (between `1` to `7`), `A` is the number + of exponent bits and `B` is the number of mantissa bits. The constraint of `X == A + B + 1` must + be satisfied for a given shorthand notation. + + - **Unsigned Integer quantization:** + - Full function names: `uintx_weight_only` + - Shorthands: `uint1wo`, `uint2wo`, `uint3wo`, `uint4wo`, `uint5wo`, `uint6wo`, `uint7wo` + - An AOBaseConfig instance: for more advanced configuration options. + modules_to_not_convert (`List[str]`, *optional*, default to `None`): + The list of modules to not quantize, useful for quantizing models that explicitly require to have some + modules left in their original precision. + kwargs (`Dict[str, Any]`, *optional*): + The keyword arguments for the chosen type of quantization, for example, int4_weight_only quantization + supports two keyword arguments `group_size` and `inner_k_tiles` currently. More API examples and + documentation of arguments can be found in + https://github.com/pytorch/ao/tree/main/torchao/quantization#other-available-quantization-techniques + + Example: + ```python + from diffusers import FluxTransformer2DModel, TorchAoConfig + + # AOBaseConfig-based configuration + from torchao.quantization import Int8WeightOnlyConfig + + quantization_config = TorchAoConfig(Int8WeightOnlyConfig()) + + # String-based config + quantization_config = TorchAoConfig("int8wo") + transformer = FluxTransformer2DModel.from_pretrained( + "black-forest-labs/Flux.1-Dev", + subfolder="transformer", + quantization_config=quantization_config, + torch_dtype=torch.bfloat16, + ) + ``` + """ + + def __init__( + self, + quant_type: Union[str, "AOBaseConfig"], # noqa: F821 + modules_to_not_convert: Optional[List[str]] = None, + **kwargs, + ) -> None: + self.quant_method = QuantizationMethod.TORCHAO + self.quant_type = quant_type + self.modules_to_not_convert = modules_to_not_convert + + # When we load from serialized config, "quant_type_kwargs" will be the key + if "quant_type_kwargs" in kwargs: + self.quant_type_kwargs = kwargs["quant_type_kwargs"] + else: + self.quant_type_kwargs = kwargs + + self.post_init() + + def post_init(self): + if not isinstance(self.quant_type, str): + if is_torchao_version("<=", "0.9.0"): + raise ValueError( + f"torchao <= 0.9.0 only supports string quant_type, got {type(self.quant_type).__name__}. " + f"Upgrade to torchao > 0.9.0 to use AOBaseConfig." + ) + + from torchao.quantization.quant_api import AOBaseConfig + + if not isinstance(self.quant_type, AOBaseConfig): + raise TypeError(f"quant_type must be a AOBaseConfig instance, got {type(self.quant_type).__name__}") + + elif isinstance(self.quant_type, str): + TORCHAO_QUANT_TYPE_METHODS = self._get_torchao_quant_type_to_method() + + if self.quant_type not in TORCHAO_QUANT_TYPE_METHODS.keys(): + is_floating_quant_type = self.quant_type.startswith("float") or self.quant_type.startswith("fp") + if is_floating_quant_type and not self._is_xpu_or_cuda_capability_atleast_8_9(): + raise ValueError( + f"Requested quantization type: {self.quant_type} is not supported on GPUs with CUDA capability <= 8.9. You " + f"can check the CUDA capability of your GPU using `torch.cuda.get_device_capability()`." + ) + + raise ValueError( + f"Requested quantization type: {self.quant_type} is not supported or is an incorrect `quant_type` name. If you think the " + f"provided quantization type should be supported, please open an issue at https://github.com/huggingface/diffusers/issues." + ) + + method = TORCHAO_QUANT_TYPE_METHODS[self.quant_type] + signature = inspect.signature(method) + all_kwargs = { + param.name + for param in signature.parameters.values() + if param.kind in [inspect.Parameter.KEYWORD_ONLY, inspect.Parameter.POSITIONAL_OR_KEYWORD] + } + unsupported_kwargs = list(self.quant_type_kwargs.keys() - all_kwargs) + + if len(unsupported_kwargs) > 0: + raise ValueError( + f'The quantization method "{self.quant_type}" does not support the following keyword arguments: ' + f"{unsupported_kwargs}. The following keywords arguments are supported: {all_kwargs}." + ) + + def to_dict(self): + """Convert configuration to a dictionary.""" + d = super().to_dict() + + if isinstance(self.quant_type, str): + # Handle layout serialization if present + if "quant_type_kwargs" in d and "layout" in d["quant_type_kwargs"]: + if is_dataclass(d["quant_type_kwargs"]["layout"]): + d["quant_type_kwargs"]["layout"] = [ + d["quant_type_kwargs"]["layout"].__class__.__name__, + dataclasses.asdict(d["quant_type_kwargs"]["layout"]), + ] + if isinstance(d["quant_type_kwargs"]["layout"], list): + assert len(d["quant_type_kwargs"]["layout"]) == 2, "layout saves layout name and layout kwargs" + assert isinstance(d["quant_type_kwargs"]["layout"][0], str), "layout name must be a string" + assert isinstance(d["quant_type_kwargs"]["layout"][1], dict), "layout kwargs must be a dict" + else: + raise ValueError("layout must be a list") + else: + # Handle AOBaseConfig serialization + from torchao.core.config import config_to_dict + + # For now we assume there is 1 config per Transformer, however in the future + # We may want to support a config per fqn. + d["quant_type"] = {"default": config_to_dict(self.quant_type)} + + return d + + @classmethod + def from_dict(cls, config_dict, return_unused_kwargs=False, **kwargs): + """Create configuration from a dictionary.""" + if not is_torchao_version(">", "0.9.0"): + raise NotImplementedError("TorchAoConfig requires torchao > 0.9.0 for construction from dict") + config_dict = config_dict.copy() + quant_type = config_dict.pop("quant_type") + + if isinstance(quant_type, str): + return cls(quant_type=quant_type, **config_dict) + # Check if we only have one key which is "default" + # In the future we may update this + assert len(quant_type) == 1 and "default" in quant_type, ( + "Expected only one key 'default' in quant_type dictionary" + ) + quant_type = quant_type["default"] + + # Deserialize quant_type if needed + from torchao.core.config import config_from_dict + + quant_type = config_from_dict(quant_type) + + return cls(quant_type=quant_type, **config_dict) + + @classmethod + def _get_torchao_quant_type_to_method(cls): + r""" + Returns supported torchao quantization types with all commonly used notations. + """ + + if is_torchao_available(): + # TODO(aryan): Support autoquant and sparsify + from torchao.quantization import ( + float8_dynamic_activation_float8_weight, + float8_static_activation_float8_weight, + float8_weight_only, + fpx_weight_only, + int4_weight_only, + int8_dynamic_activation_int4_weight, + int8_dynamic_activation_int8_weight, + int8_weight_only, + uintx_weight_only, + ) + + # TODO(aryan): Add a note on how to use PerAxis and PerGroup observers + from torchao.quantization.observer import PerRow, PerTensor + + def generate_float8dq_types(dtype: torch.dtype): + name = "e5m2" if dtype == torch.float8_e5m2 else "e4m3" + types = {} + + for granularity_cls in [PerTensor, PerRow]: + # Note: Activation and Weights cannot have different granularities + granularity_name = "tensor" if granularity_cls is PerTensor else "row" + types[f"float8dq_{name}_{granularity_name}"] = partial( + float8_dynamic_activation_float8_weight, + activation_dtype=dtype, + weight_dtype=dtype, + granularity=(granularity_cls(), granularity_cls()), + ) + + return types + + def generate_fpx_quantization_types(bits: int): + types = {} + + for ebits in range(1, bits): + mbits = bits - ebits - 1 + types[f"fp{bits}_e{ebits}m{mbits}"] = partial(fpx_weight_only, ebits=ebits, mbits=mbits) + + non_sign_bits = bits - 1 + default_ebits = (non_sign_bits + 1) // 2 + default_mbits = non_sign_bits - default_ebits + types[f"fp{bits}"] = partial(fpx_weight_only, ebits=default_ebits, mbits=default_mbits) + + return types + + INT4_QUANTIZATION_TYPES = { + # int4 weight + bfloat16/float16 activation + "int4wo": int4_weight_only, + "int4_weight_only": int4_weight_only, + # int4 weight + int8 activation + "int4dq": int8_dynamic_activation_int4_weight, + "int8_dynamic_activation_int4_weight": int8_dynamic_activation_int4_weight, + } + + INT8_QUANTIZATION_TYPES = { + # int8 weight + bfloat16/float16 activation + "int8wo": int8_weight_only, + "int8_weight_only": int8_weight_only, + # int8 weight + int8 activation + "int8dq": int8_dynamic_activation_int8_weight, + "int8_dynamic_activation_int8_weight": int8_dynamic_activation_int8_weight, + } + + # TODO(aryan): handle torch 2.2/2.3 + FLOATX_QUANTIZATION_TYPES = { + # float8_e5m2 weight + bfloat16/float16 activation + "float8wo": partial(float8_weight_only, weight_dtype=torch.float8_e5m2), + "float8_weight_only": float8_weight_only, + "float8wo_e5m2": partial(float8_weight_only, weight_dtype=torch.float8_e5m2), + # float8_e4m3 weight + bfloat16/float16 activation + "float8wo_e4m3": partial(float8_weight_only, weight_dtype=torch.float8_e4m3fn), + # float8_e5m2 weight + float8 activation (dynamic) + "float8dq": float8_dynamic_activation_float8_weight, + "float8_dynamic_activation_float8_weight": float8_dynamic_activation_float8_weight, + # ===== Matrix multiplication is not supported in float8_e5m2 so the following errors out. + # However, changing activation_dtype=torch.float8_e4m3 might work here ===== + # "float8dq_e5m2": partial( + # float8_dynamic_activation_float8_weight, + # activation_dtype=torch.float8_e5m2, + # weight_dtype=torch.float8_e5m2, + # ), + # **generate_float8dq_types(torch.float8_e5m2), + # ===== ===== + # float8_e4m3 weight + float8 activation (dynamic) + "float8dq_e4m3": partial( + float8_dynamic_activation_float8_weight, + activation_dtype=torch.float8_e4m3fn, + weight_dtype=torch.float8_e4m3fn, + ), + **generate_float8dq_types(torch.float8_e4m3fn), + # float8 weight + float8 activation (static) + "float8_static_activation_float8_weight": float8_static_activation_float8_weight, + # For fpx, only x <= 8 is supported by default. Other dtypes can be explored by users directly + # fpx weight + bfloat16/float16 activation + **generate_fpx_quantization_types(3), + **generate_fpx_quantization_types(4), + **generate_fpx_quantization_types(5), + **generate_fpx_quantization_types(6), + **generate_fpx_quantization_types(7), + } + + UINTX_QUANTIZATION_DTYPES = { + "uintx_weight_only": uintx_weight_only, + "uint1wo": partial(uintx_weight_only, dtype=torch.uint1), + "uint2wo": partial(uintx_weight_only, dtype=torch.uint2), + "uint3wo": partial(uintx_weight_only, dtype=torch.uint3), + "uint4wo": partial(uintx_weight_only, dtype=torch.uint4), + "uint5wo": partial(uintx_weight_only, dtype=torch.uint5), + "uint6wo": partial(uintx_weight_only, dtype=torch.uint6), + "uint7wo": partial(uintx_weight_only, dtype=torch.uint7), + # "uint8wo": partial(uintx_weight_only, dtype=torch.uint8), # uint8 quantization is not supported + } + + QUANTIZATION_TYPES = {} + QUANTIZATION_TYPES.update(INT4_QUANTIZATION_TYPES) + QUANTIZATION_TYPES.update(INT8_QUANTIZATION_TYPES) + QUANTIZATION_TYPES.update(UINTX_QUANTIZATION_DTYPES) + + if cls._is_xpu_or_cuda_capability_atleast_8_9(): + QUANTIZATION_TYPES.update(FLOATX_QUANTIZATION_TYPES) + + return QUANTIZATION_TYPES + else: + raise ValueError( + "TorchAoConfig requires torchao to be installed, please install with `pip install torchao`" + ) + + @staticmethod + def _is_xpu_or_cuda_capability_atleast_8_9() -> bool: + if torch.cuda.is_available(): + major, minor = torch.cuda.get_device_capability() + if major == 8: + return minor >= 9 + return major >= 9 + elif torch.xpu.is_available(): + return True + else: + raise RuntimeError("TorchAO requires a CUDA compatible GPU or Intel XPU and installation of PyTorch.") + + def get_apply_tensor_subclass(self): + """Create the appropriate quantization method based on configuration.""" + if not isinstance(self.quant_type, str): + return self.quant_type + else: + methods = self._get_torchao_quant_type_to_method() + quant_type_kwargs = self.quant_type_kwargs.copy() + if ( + not torch.cuda.is_available() + and is_torchao_available() + and self.quant_type == "int4_weight_only" + and version.parse(importlib.metadata.version("torchao")) >= version.parse("0.8.0") + and quant_type_kwargs.get("layout", None) is None + ): + if torch.xpu.is_available(): + if version.parse(importlib.metadata.version("torchao")) >= version.parse( + "0.11.0" + ) and version.parse(importlib.metadata.version("torch")) > version.parse("2.7.9"): + from torchao.dtypes import Int4XPULayout + from torchao.quantization.quant_primitives import ZeroPointDomain + + quant_type_kwargs["layout"] = Int4XPULayout() + quant_type_kwargs["zero_point_domain"] = ZeroPointDomain.INT + else: + raise ValueError( + "TorchAoConfig requires torchao >= 0.11.0 and torch >= 2.8.0 for XPU support. Please upgrade the version or use run on CPU with the cpu version pytorch." + ) + else: + from torchao.dtypes import Int4CPULayout + + quant_type_kwargs["layout"] = Int4CPULayout() + + return methods[self.quant_type](**quant_type_kwargs) + + def __repr__(self): + r""" + Example of how this looks for `TorchAoConfig("uint4wo", group_size=32)`: + + ``` + TorchAoConfig { + "modules_to_not_convert": null, + "quant_method": "torchao", + "quant_type": "uint4wo", + "quant_type_kwargs": { + "group_size": 32 + } + } + ``` + """ + config_dict = self.to_dict() + return ( + f"{self.__class__.__name__} {json.dumps(config_dict, indent=2, sort_keys=True, cls=TorchAoJSONEncoder)}\n" + ) + + +@dataclass +class QuantoConfig(QuantizationConfigMixin): + """ + This is a wrapper class about all possible attributes and features that you can play with a model that has been + loaded using `quanto`. + + Args: + weights_dtype (`str`, *optional*, defaults to `"int8"`): + The target dtype for the weights after quantization. Supported values are ("float8","int8","int4","int2") + modules_to_not_convert (`list`, *optional*, default to `None`): + The list of modules to not quantize, useful for quantizing models that explicitly require to have some + modules left in their original precision (e.g. Whisper encoder, Llava encoder, Mixtral gate layers). + """ + + def __init__( + self, + weights_dtype: str = "int8", + modules_to_not_convert: Optional[List[str]] = None, + **kwargs, + ): + self.quant_method = QuantizationMethod.QUANTO + self.weights_dtype = weights_dtype + self.modules_to_not_convert = modules_to_not_convert + + self.post_init() + + def post_init(self): + r""" + Safety checker that arguments are correct + """ + accepted_weights = ["float8", "int8", "int4", "int2"] + if self.weights_dtype not in accepted_weights: + raise ValueError(f"Only support weights in {accepted_weights} but found {self.weights_dtype}") + + +@dataclass +class NVIDIAModelOptConfig(QuantizationConfigMixin): + """This is a config class to use nvidia modelopt for quantization. + + Args: + quant_type (`str`): + The type of quantization we want to use, following is how to use: + **weightquant_activationquant ==> FP8_FP8** In the above example we have use FP8 for both weight and + activation quantization. Following are the all the options: + - FP8 + - INT8 + - INT4 + - NF4 + - NVFP4 + modules_to_not_convert (`List[str]`, *optional*, default to `None`): + The list of modules to not quantize, useful for quantizing models that explicitly require to have some + weight_only (`bool`, *optional*, default to `False`): + If set to `True`, the quantization will be applied only to the weights of the model. + channel_quantize (`int`, *optional*, default to `None`): + The channel quantization axis, useful for quantizing models across different axes. + block_quantize (`int`, *optional*, default to `None`): + The block size, useful to further quantize each channel/axes into blocks. + scale_channel_quantize (`int`, *optional*, default to `None`): + The scale channel quantization axis, useful for quantizing calculated scale across different axes. + scale_block_quantize (`int`, *optional*, default to `None`): + The scale block size, useful for quantizing each scale channel/axes into blocks. + algorithm (`str`, *optional*, default to `"max"`): + The algorithm to use for quantization, currently only supports `"max"`. + forward_loop (`Callable`, *optional*, default to `None`): + The forward loop function to use for calibration during quantization. + modelopt_config (`dict`, *optional*, default to `None`): + The modelopt config, useful for passing custom configs to modelopt. + disable_conv_quantization (`bool`, *optional*, default to `False`): + If set to `True`, the quantization will be disabled for convolutional layers. + kwargs (`Dict[str, Any]`, *optional*): + Additional parameters which are to be used for calibration. + """ + + quanttype_to_numbits = { + "FP8": (4, 3), + "INT8": 8, + "INT4": 4, + "NF4": 4, + "NVFP4": (2, 1), + } + quanttype_to_scalingbits = { + "NF4": 8, + "NVFP4": (4, 3), + } + + def __init__( + self, + quant_type: str, + modules_to_not_convert: Optional[List[str]] = None, + weight_only: bool = True, + channel_quantize: Optional[int] = None, + block_quantize: Optional[int] = None, + scale_channel_quantize: Optional[int] = None, + scale_block_quantize: Optional[int] = None, + algorithm: str = "max", + forward_loop: Optional[Callable] = None, + modelopt_config: Optional[dict] = None, + disable_conv_quantization: bool = False, + **kwargs, + ) -> None: + self.quant_method = QuantizationMethod.MODELOPT + self._normalize_quant_type(quant_type) + self.modules_to_not_convert = modules_to_not_convert + self.weight_only = weight_only + self.channel_quantize = channel_quantize + self.block_quantize = block_quantize + self.calib_cfg = { + "method": algorithm, + # add more options here if needed + } + self.forward_loop = forward_loop + self.scale_channel_quantize = scale_channel_quantize + self.scale_block_quantize = scale_block_quantize + self.modelopt_config = self.get_config_from_quant_type() if not modelopt_config else modelopt_config + self.disable_conv_quantization = disable_conv_quantization + + def check_model_patching(self, operation: str = "loading"): + # ModelOpt imports diffusers internally. This is here to prevent circular imports + from modelopt.torch.opt.plugins.huggingface import _PATCHED_CLASSES + + if len(_PATCHED_CLASSES) == 0: + warning_msg = ( + f"Not {operation} weights in modelopt format. This might cause unreliable behavior." + "Please make sure to run the following code before loading/saving model weights:\n\n" + " from modelopt.torch.opt import enable_huggingface_checkpointing\n" + " enable_huggingface_checkpointing()\n" + ) + warnings.warn(warning_msg) + + def _normalize_quant_type(self, quant_type: str) -> str: + """ + Validates and normalizes the quantization type string. + + Splits the quant_type into weight and activation components, verifies them against supported types, and + replaces unsupported values with safe defaults. + + Args: + quant_type (str): The input quantization type string (e.g., 'FP8_INT8'). + + Returns: + str: A valid quantization type string (e.g., 'FP8_INT8' or 'FP8'). + """ + parts = quant_type.split("_") + w_type = parts[0] + act_type = parts[1] if len(parts) > 1 else None + if len(parts) > 2: + logger.warning(f"Quantization type {quant_type} is not supported. Picking FP8_INT8 as default") + w_type = "FP8" + act_type = None + else: + if w_type not in NVIDIAModelOptConfig.quanttype_to_numbits: + logger.warning(f"Weight Quantization type {w_type} is not supported. Picking FP8 as default") + w_type = "FP8" + if act_type is not None and act_type not in NVIDIAModelOptConfig.quanttype_to_numbits: + logger.warning(f"Activation Quantization type {act_type} is not supported. Picking INT8 as default") + act_type = None + self.quant_type = w_type + ("_" + act_type if act_type is not None else "") + + def get_config_from_quant_type(self) -> Dict[str, Any]: + """ + Get the config from the quantization type. + """ + import modelopt.torch.quantization as mtq + + BASE_CONFIG = { + "quant_cfg": { + "*weight_quantizer": {"fake_quant": False}, + "*input_quantizer": {}, + "*output_quantizer": {"enable": False}, + "*q_bmm_quantizer": {}, + "*k_bmm_quantizer": {}, + "*v_bmm_quantizer": {}, + "*softmax_quantizer": {}, + **mtq.config._default_disabled_quantizer_cfg, + }, + "algorithm": self.calib_cfg, + } + + quant_cfg = BASE_CONFIG["quant_cfg"] + if self.weight_only: + for k in quant_cfg: + if "*weight_quantizer" not in k and not quant_cfg[k]: + quant_cfg[k]["enable"] = False + + parts = self.quant_type.split("_") + w_type = parts[0] + act_type = parts[1].replace("A", "") if len(parts) > 1 else None + for k in quant_cfg: + if k not in mtq.config._default_disabled_quantizer_cfg and "enable" not in quant_cfg[k]: + if k == "*input_quantizer": + if act_type is not None: + quant_cfg[k]["num_bits"] = NVIDIAModelOptConfig.quanttype_to_numbits[act_type] + continue + quant_cfg[k]["num_bits"] = NVIDIAModelOptConfig.quanttype_to_numbits[w_type] + + if self.block_quantize is not None and self.channel_quantize is not None: + quant_cfg["*weight_quantizer"]["block_sizes"] = {self.channel_quantize: self.block_quantize} + quant_cfg["*input_quantizer"]["block_sizes"] = { + self.channel_quantize: self.block_quantize, + "type": "dynamic", + } + elif self.channel_quantize is not None: + quant_cfg["*weight_quantizer"]["axis"] = self.channel_quantize + quant_cfg["*input_quantizer"]["axis"] = self.channel_quantize + quant_cfg["*input_quantizer"]["type"] = "dynamic" + + # Only fixed scaling sizes are supported for now in modelopt + if self.scale_channel_quantize is not None and self.scale_block_quantize is not None: + if w_type in NVIDIAModelOptConfig.quanttype_to_scalingbits: + quant_cfg["*weight_quantizer"]["block_sizes"].update( + { + "scale_bits": NVIDIAModelOptConfig.quanttype_to_scalingbits[w_type], + "scale_block_sizes": {self.scale_channel_quantize: self.scale_block_quantize}, + } + ) + if act_type and act_type in NVIDIAModelOptConfig.quanttype_to_scalingbits: + quant_cfg["*input_quantizer"]["block_sizes"].update( + { + "scale_bits": NVIDIAModelOptConfig.quanttype_to_scalingbits[act_type], + "scale_block_sizes": {self.scale_channel_quantize: self.scale_block_quantize}, + } + ) + + return BASE_CONFIG diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..a4e8a1f41a1e4bf3bbb53c5684398277eb671a83 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/__init__.py @@ -0,0 +1 @@ +from .quanto_quantizer import QuantoQuantizer diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/quanto_quantizer.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/quanto_quantizer.py new file mode 100644 index 0000000000000000000000000000000000000000..c5f71f816fc343e39f38cf69f817322312c182d2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/quanto_quantizer.py @@ -0,0 +1,181 @@ +from typing import TYPE_CHECKING, Any, Dict, List, Union + +from diffusers.utils.import_utils import is_optimum_quanto_version + +from ...utils import ( + get_module_from_name, + is_accelerate_available, + is_accelerate_version, + is_optimum_quanto_available, + is_torch_available, + logging, +) +from ..base import DiffusersQuantizer + + +if TYPE_CHECKING: + from ...models.modeling_utils import ModelMixin + + +if is_torch_available(): + import torch + +if is_accelerate_available(): + from accelerate.utils import CustomDtype, set_module_tensor_to_device + +if is_optimum_quanto_available(): + from .utils import _replace_with_quanto_layers + +logger = logging.get_logger(__name__) + + +class QuantoQuantizer(DiffusersQuantizer): + r""" + Diffusers Quantizer for Optimum Quanto + """ + + use_keep_in_fp32_modules = True + requires_calibration = False + required_packages = ["quanto", "accelerate"] + + def __init__(self, quantization_config, **kwargs): + super().__init__(quantization_config, **kwargs) + + def validate_environment(self, *args, **kwargs): + if not is_optimum_quanto_available(): + raise ImportError( + "Loading an optimum-quanto quantized model requires optimum-quanto library (`pip install optimum-quanto`)" + ) + if not is_optimum_quanto_version(">=", "0.2.6"): + raise ImportError( + "Loading an optimum-quanto quantized model requires `optimum-quanto>=0.2.6`. " + "Please upgrade your installation with `pip install --upgrade optimum-quanto" + ) + + if not is_accelerate_available(): + raise ImportError( + "Loading an optimum-quanto quantized model requires accelerate library (`pip install accelerate`)" + ) + + device_map = kwargs.get("device_map", None) + if isinstance(device_map, dict) and len(device_map.keys()) > 1: + raise ValueError( + "`device_map` for multi-GPU inference or CPU/disk offload is currently not supported with Diffusers and the Quanto backend" + ) + + def check_if_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + state_dict: Dict[str, Any], + **kwargs, + ): + # Quanto imports diffusers internally. This is here to prevent circular imports + from optimum.quanto import QModuleMixin, QTensor + from optimum.quanto.tensor.packed import PackedTensor + + module, tensor_name = get_module_from_name(model, param_name) + if self.pre_quantized and any(isinstance(module, t) for t in [QTensor, PackedTensor]): + return True + elif isinstance(module, QModuleMixin) and "weight" in tensor_name: + return not module.frozen + + return False + + def create_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + target_device: "torch.device", + *args, + **kwargs, + ): + """ + Create the quantized parameter by calling .freeze() after setting it to the module. + """ + + dtype = kwargs.get("dtype", torch.float32) + module, tensor_name = get_module_from_name(model, param_name) + if self.pre_quantized: + setattr(module, tensor_name, param_value) + else: + set_module_tensor_to_device(model, param_name, target_device, param_value, dtype) + module.freeze() + module.weight.requires_grad = False + + def adjust_max_memory(self, max_memory: Dict[str, Union[int, str]]) -> Dict[str, Union[int, str]]: + max_memory = {key: val * 0.90 for key, val in max_memory.items()} + return max_memory + + def adjust_target_dtype(self, target_dtype: "torch.dtype") -> "torch.dtype": + if is_accelerate_version(">=", "0.27.0"): + mapping = { + "int8": torch.int8, + "float8": CustomDtype.FP8, + "int4": CustomDtype.INT4, + "int2": CustomDtype.INT2, + } + target_dtype = mapping[self.quantization_config.weights_dtype] + + return target_dtype + + def update_torch_dtype(self, torch_dtype: "torch.dtype" = None) -> "torch.dtype": + if torch_dtype is None: + logger.info("You did not specify `torch_dtype` in `from_pretrained`. Setting it to `torch.float32`.") + torch_dtype = torch.float32 + return torch_dtype + + def update_missing_keys(self, model, missing_keys: List[str], prefix: str) -> List[str]: + # Quanto imports diffusers internally. This is here to prevent circular imports + from optimum.quanto import QModuleMixin + + not_missing_keys = [] + for name, module in model.named_modules(): + if isinstance(module, QModuleMixin): + for missing in missing_keys: + if ( + (name in missing or name in f"{prefix}.{missing}") + and not missing.endswith(".weight") + and not missing.endswith(".bias") + ): + not_missing_keys.append(missing) + return [k for k in missing_keys if k not in not_missing_keys] + + def _process_model_before_weight_loading( + self, + model: "ModelMixin", + device_map, + keep_in_fp32_modules: List[str] = [], + **kwargs, + ): + self.modules_to_not_convert = self.quantization_config.modules_to_not_convert + + if not isinstance(self.modules_to_not_convert, list): + self.modules_to_not_convert = [self.modules_to_not_convert] + + self.modules_to_not_convert.extend(keep_in_fp32_modules) + + model = _replace_with_quanto_layers( + model, + modules_to_not_convert=self.modules_to_not_convert, + quantization_config=self.quantization_config, + pre_quantized=self.pre_quantized, + ) + model.config.quantization_config = self.quantization_config + + def _process_model_after_weight_loading(self, model, **kwargs): + return model + + @property + def is_trainable(self): + return True + + @property + def is_serializable(self): + return True + + @property + def is_compileable(self) -> bool: + return True diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..6f41fd36b43a7c222de17a297523939d27f34537 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/quanto/utils.py @@ -0,0 +1,60 @@ +import torch.nn as nn + +from ...utils import is_accelerate_available, logging + + +logger = logging.get_logger(__name__) + +if is_accelerate_available(): + from accelerate import init_empty_weights + + +def _replace_with_quanto_layers(model, quantization_config, modules_to_not_convert: list, pre_quantized=False): + # Quanto imports diffusers internally. These are placed here to avoid circular imports + from optimum.quanto import QLinear, freeze, qfloat8, qint2, qint4, qint8 + + def _get_weight_type(dtype: str): + return {"float8": qfloat8, "int8": qint8, "int4": qint4, "int2": qint2}[dtype] + + def _replace_layers(model, quantization_config, modules_to_not_convert): + has_children = list(model.children()) + if not has_children: + return model + + for name, module in model.named_children(): + _replace_layers(module, quantization_config, modules_to_not_convert) + + if name in modules_to_not_convert: + continue + + if isinstance(module, nn.Linear): + with init_empty_weights(): + qlinear = QLinear( + in_features=module.in_features, + out_features=module.out_features, + bias=module.bias is not None, + dtype=module.weight.dtype, + weights=_get_weight_type(quantization_config.weights_dtype), + ) + model._modules[name] = qlinear + model._modules[name].source_cls = type(module) + model._modules[name].requires_grad_(False) + + return model + + model = _replace_layers(model, quantization_config, modules_to_not_convert) + has_been_replaced = any(isinstance(replaced_module, QLinear) for _, replaced_module in model.named_modules()) + + if not has_been_replaced: + logger.warning( + f"{model.__class__.__name__} does not appear to have any `nn.Linear` modules. Quantization will not be applied." + " Please check your model architecture, or submit an issue on Github if you think this is a bug." + " https://github.com/huggingface/diffusers/issues/new" + ) + + # We need to freeze the pre_quantized model in order for the loaded state_dict and model state dict + # to match when trying to load weights with load_model_dict_into_meta + if pre_quantized: + freeze(model) + + return model diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/torchao/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/torchao/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..c56bf54c25158fb9e7ef9ff3bc1eb651743764fb --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/torchao/__init__.py @@ -0,0 +1,15 @@ +# Copyright 2025 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from .torchao_quantizer import TorchAoHfQuantizer diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/torchao/torchao_quantizer.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/torchao/torchao_quantizer.py new file mode 100644 index 0000000000000000000000000000000000000000..2334c7af86306596282b4b0978a1e5a9bf776cfd --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/quantizers/torchao/torchao_quantizer.py @@ -0,0 +1,417 @@ +# Copyright 2025 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" +Adapted from +https://github.com/huggingface/transformers/blob/3a8eb74668e9c2cc563b2f5c62fac174797063e0/src/transformers/quantizers/quantizer_torchao.py +""" + +import importlib +import re +import types +from fnmatch import fnmatch +from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union + +from packaging import version + +from ...utils import ( + get_module_from_name, + is_torch_available, + is_torch_version, + is_torchao_available, + is_torchao_version, + logging, +) +from ..base import DiffusersQuantizer + + +if TYPE_CHECKING: + from ...models.modeling_utils import ModelMixin + + +if is_torch_available(): + import torch + import torch.nn as nn + + if is_torch_version(">=", "2.5"): + SUPPORTED_TORCH_DTYPES_FOR_QUANTIZATION = ( + # At the moment, only int8 is supported for integer quantization dtypes. + # In Torch 2.6, int1-int7 will be introduced, so this can be visited in the future + # to support more quantization methods, such as intx_weight_only. + torch.int8, + torch.float8_e4m3fn, + torch.float8_e5m2, + torch.uint1, + torch.uint2, + torch.uint3, + torch.uint4, + torch.uint5, + torch.uint6, + torch.uint7, + ) + else: + SUPPORTED_TORCH_DTYPES_FOR_QUANTIZATION = ( + torch.int8, + torch.float8_e4m3fn, + torch.float8_e5m2, + ) + +if is_torchao_available(): + from torchao.quantization import quantize_ + + +def _update_torch_safe_globals(): + safe_globals = [ + (torch.uint1, "torch.uint1"), + (torch.uint2, "torch.uint2"), + (torch.uint3, "torch.uint3"), + (torch.uint4, "torch.uint4"), + (torch.uint5, "torch.uint5"), + (torch.uint6, "torch.uint6"), + (torch.uint7, "torch.uint7"), + ] + try: + from torchao.dtypes import NF4Tensor + from torchao.dtypes.floatx.float8_layout import Float8AQTTensorImpl + from torchao.dtypes.uintx.uint4_layout import UInt4Tensor + from torchao.dtypes.uintx.uintx_layout import UintxAQTTensorImpl, UintxTensor + + safe_globals.extend([UintxTensor, UInt4Tensor, UintxAQTTensorImpl, Float8AQTTensorImpl, NF4Tensor]) + + except (ImportError, ModuleNotFoundError) as e: + logger.warning( + "Unable to import `torchao` Tensor objects. This may affect loading checkpoints serialized with `torchao`" + ) + logger.debug(e) + + finally: + torch.serialization.add_safe_globals(safe_globals=safe_globals) + + +if ( + is_torch_available() + and is_torch_version(">=", "2.6.0") + and is_torchao_available() + and is_torchao_version(">=", "0.7.0") +): + _update_torch_safe_globals() + + +def fuzzy_match_size(config_name: str) -> Optional[str]: + """ + Extract the size digit from strings like "4weight", "8weight". Returns the digit as an integer if found, otherwise + None. + """ + config_name = config_name.lower() + + str_match = re.search(r"(\d)weight", config_name) + + if str_match: + return str_match.group(1) + + return None + + +logger = logging.get_logger(__name__) + + +def _quantization_type(weight): + from torchao.dtypes import AffineQuantizedTensor + from torchao.quantization.linear_activation_quantized_tensor import LinearActivationQuantizedTensor + + if isinstance(weight, AffineQuantizedTensor): + return f"{weight.__class__.__name__}({weight._quantization_type()})" + + if isinstance(weight, LinearActivationQuantizedTensor): + return f"{weight.__class__.__name__}(activation={weight.input_quant_func}, weight={_quantization_type(weight.original_weight_tensor)})" + + +def _linear_extra_repr(self): + weight = _quantization_type(self.weight) + if weight is None: + return f"in_features={self.weight.shape[1]}, out_features={self.weight.shape[0]}, weight=None" + else: + return f"in_features={self.weight.shape[1]}, out_features={self.weight.shape[0]}, weight={weight}" + + +class TorchAoHfQuantizer(DiffusersQuantizer): + r""" + Diffusers Quantizer for TorchAO: https://github.com/pytorch/ao/. + """ + + requires_calibration = False + required_packages = ["torchao"] + + def __init__(self, quantization_config, **kwargs): + super().__init__(quantization_config, **kwargs) + + def validate_environment(self, *args, **kwargs): + if not is_torchao_available(): + raise ImportError( + "Loading a TorchAO quantized model requires the torchao library. Please install with `pip install torchao`" + ) + torchao_version = version.parse(importlib.metadata.version("torch")) + if torchao_version < version.parse("0.7.0"): + raise RuntimeError( + f"The minimum required version of `torchao` is 0.7.0, but the current version is {torchao_version}. Please upgrade with `pip install -U torchao`." + ) + + self.offload = False + + device_map = kwargs.get("device_map", None) + if isinstance(device_map, dict): + if "cpu" in device_map.values() or "disk" in device_map.values(): + if self.pre_quantized: + raise ValueError( + "You are attempting to perform cpu/disk offload with a pre-quantized torchao model " + "This is not supported yet. Please remove the CPU or disk device from the `device_map` argument." + ) + else: + self.offload = True + + if self.pre_quantized: + weights_only = kwargs.get("weights_only", None) + if weights_only: + torch_version = version.parse(importlib.metadata.version("torch")) + if torch_version < version.parse("2.5.0"): + # TODO(aryan): TorchAO is compatible with Pytorch >= 2.2 for certain quantization types. Try to see if we can support it in future + raise RuntimeError( + f"In order to use TorchAO pre-quantized model, you need to have torch>=2.5.0. However, the current version is {torch_version}." + ) + + def update_torch_dtype(self, torch_dtype): + quant_type = self.quantization_config.quant_type + if isinstance(quant_type, str) and (quant_type.startswith("int") or quant_type.startswith("uint")): + if torch_dtype is not None and torch_dtype != torch.bfloat16: + logger.warning( + f"You are trying to set torch_dtype to {torch_dtype} for int4/int8/uintx quantization, but " + f"only bfloat16 is supported right now. Please set `torch_dtype=torch.bfloat16`." + ) + + if torch_dtype is None: + # We need to set the torch_dtype, otherwise we have dtype mismatch when performing the quantized linear op + logger.warning( + "Overriding `torch_dtype` with `torch_dtype=torch.bfloat16` due to requirements of `torchao` " + "to enable model loading in different precisions. Pass your own `torch_dtype` to specify the " + "dtype of the remaining non-linear layers, or pass torch_dtype=torch.bfloat16, to remove this warning." + ) + torch_dtype = torch.bfloat16 + + return torch_dtype + + def adjust_target_dtype(self, target_dtype: "torch.dtype") -> "torch.dtype": + quant_type = self.quantization_config.quant_type + from accelerate.utils import CustomDtype + + if isinstance(quant_type, str): + if quant_type.startswith("int8"): + # Note that int4 weights are created by packing into torch.int8, but since there is no torch.int4, we use torch.int8 + return torch.int8 + elif quant_type.startswith("int4"): + return CustomDtype.INT4 + elif quant_type == "uintx_weight_only": + return self.quantization_config.quant_type_kwargs.get("dtype", torch.uint8) + elif quant_type.startswith("uint"): + return { + 1: torch.uint1, + 2: torch.uint2, + 3: torch.uint3, + 4: torch.uint4, + 5: torch.uint5, + 6: torch.uint6, + 7: torch.uint7, + }[int(quant_type[4])] + elif quant_type.startswith("float") or quant_type.startswith("fp"): + return torch.bfloat16 + + elif is_torchao_version(">", "0.9.0"): + from torchao.core.config import AOBaseConfig + + quant_type = self.quantization_config.quant_type + if isinstance(quant_type, AOBaseConfig): + # Extract size digit using fuzzy match on the class name + config_name = quant_type.__class__.__name__ + size_digit = fuzzy_match_size(config_name) + + # Map the extracted digit to appropriate dtype + if size_digit == "4": + return CustomDtype.INT4 + else: + # Default to int8 + return torch.int8 + + if isinstance(target_dtype, SUPPORTED_TORCH_DTYPES_FOR_QUANTIZATION): + return target_dtype + + # We need one of the supported dtypes to be selected in order for accelerate to determine + # the total size of modules/parameters for auto device placement. + possible_device_maps = ["auto", "balanced", "balanced_low_0", "sequential"] + raise ValueError( + f"You have set `device_map` as one of {possible_device_maps} on a TorchAO quantized model but a suitable target dtype " + f"could not be inferred. The supported target_dtypes are: {SUPPORTED_TORCH_DTYPES_FOR_QUANTIZATION}. If you think the " + f"dtype you are using should be supported, please open an issue at https://github.com/huggingface/diffusers/issues." + ) + + def adjust_max_memory(self, max_memory: Dict[str, Union[int, str]]) -> Dict[str, Union[int, str]]: + max_memory = {key: val * 0.9 for key, val in max_memory.items()} + return max_memory + + def check_if_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + state_dict: Dict[str, Any], + **kwargs, + ) -> bool: + param_device = kwargs.pop("param_device", None) + # Check if the param_name is not in self.modules_to_not_convert + if any((key + "." in param_name) or (key == param_name) for key in self.modules_to_not_convert): + return False + elif param_device == "cpu" and self.offload: + # We don't quantize weights that we offload + return False + else: + # We only quantize the weight of nn.Linear + module, tensor_name = get_module_from_name(model, param_name) + return isinstance(module, torch.nn.Linear) and (tensor_name == "weight") + + def create_quantized_param( + self, + model: "ModelMixin", + param_value: "torch.Tensor", + param_name: str, + target_device: "torch.device", + state_dict: Dict[str, Any], + unexpected_keys: List[str], + **kwargs, + ): + r""" + Each nn.Linear layer that needs to be quantized is processed here. First, we set the value the weight tensor, + then we move it to the target device. Finally, we quantize the module. + """ + module, tensor_name = get_module_from_name(model, param_name) + + if self.pre_quantized: + # If we're loading pre-quantized weights, replace the repr of linear layers for pretty printing info + # about AffineQuantizedTensor + module._parameters[tensor_name] = torch.nn.Parameter(param_value.to(device=target_device)) + if isinstance(module, nn.Linear): + module.extra_repr = types.MethodType(_linear_extra_repr, module) + else: + # As we perform quantization here, the repr of linear layers is that of AQT, so we don't have to do it ourselves + module._parameters[tensor_name] = torch.nn.Parameter(param_value).to(device=target_device) + quantize_(module, self.quantization_config.get_apply_tensor_subclass()) + + def get_cuda_warm_up_factor(self): + """ + This factor is used in caching_allocator_warmup to determine how many bytes to pre-allocate for CUDA warmup. + - A factor of 2 means we pre-allocate the full memory footprint of the model. + - A factor of 4 means we pre-allocate half of that, and so on + + However, when using TorchAO, calculating memory usage with param.numel() * param.element_size() doesn't give + the correct size for quantized weights (like int4 or int8) That's because TorchAO internally represents + quantized tensors using subtensors and metadata, and the reported element_size() still corresponds to the + torch_dtype not the actual bit-width of the quantized data. + + To correct for this: + - Use a division factor of 8 for int4 weights + - Use a division factor of 4 for int8 weights + """ + # Original mapping for non-AOBaseConfig types + # For the uint types, this is a best guess. Once these types become more used + # we can look into their nuances. + if is_torchao_version(">", "0.9.0"): + from torchao.core.config import AOBaseConfig + + quant_type = self.quantization_config.quant_type + # For autoquant case, it will be treated in the string implementation below in map_to_target_dtype + if isinstance(quant_type, AOBaseConfig): + # Extract size digit using fuzzy match on the class name + config_name = quant_type.__class__.__name__ + size_digit = fuzzy_match_size(config_name) + + if size_digit == "4": + return 8 + else: + return 4 + + map_to_target_dtype = {"int4_*": 8, "int8_*": 4, "uint*": 8, "float8*": 4} + quant_type = self.quantization_config.quant_type + for pattern, target_dtype in map_to_target_dtype.items(): + if fnmatch(quant_type, pattern): + return target_dtype + raise ValueError(f"Unsupported quant_type: {quant_type!r}") + + def _process_model_before_weight_loading( + self, + model: "ModelMixin", + device_map, + keep_in_fp32_modules: List[str] = [], + **kwargs, + ): + self.modules_to_not_convert = self.quantization_config.modules_to_not_convert + + if not isinstance(self.modules_to_not_convert, list): + self.modules_to_not_convert = [self.modules_to_not_convert] + + self.modules_to_not_convert.extend(keep_in_fp32_modules) + + # Extend `self.modules_to_not_convert` to keys that are supposed to be offloaded to `cpu` or `disk` + if isinstance(device_map, dict) and len(device_map.keys()) > 1: + keys_on_cpu = [key for key, value in device_map.items() if value in ["disk", "cpu"]] + self.modules_to_not_convert.extend(keys_on_cpu) + + # Purge `None`. + # Unlike `transformers`, we don't know if we should always keep certain modules in FP32 + # in case of diffusion transformer models. For language models and others alike, `lm_head` + # and tied modules are usually kept in FP32. + self.modules_to_not_convert = [module for module in self.modules_to_not_convert if module is not None] + + model.config.quantization_config = self.quantization_config + + def _process_model_after_weight_loading(self, model: "ModelMixin"): + return model + + def is_serializable(self, safe_serialization=None): + # TODO(aryan): needs to be tested + if safe_serialization: + logger.warning( + "torchao quantized model does not support safe serialization, please set `safe_serialization` to False." + ) + return False + + _is_torchao_serializable = version.parse(importlib.metadata.version("huggingface_hub")) >= version.parse( + "0.25.0" + ) + + if not _is_torchao_serializable: + logger.warning("torchao quantized model is only serializable after huggingface_hub >= 0.25.0 ") + + if self.offload and self.quantization_config.modules_to_not_convert is None: + logger.warning( + "The model contains offloaded modules and these modules are not quantized. We don't recommend saving the model as we won't be able to reload them." + "If you want to specify modules to not quantize, please specify modules_to_not_convert in the quantization_config." + ) + return False + + return _is_torchao_serializable + + @property + def is_trainable(self): + return self.quantization_config.quant_type.startswith("int8") + + @property + def is_compileable(self) -> bool: + return True diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/README.md b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/README.md new file mode 100644 index 0000000000000000000000000000000000000000..31ad27793e34783faabc222adf98691fb396a0d8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/README.md @@ -0,0 +1,3 @@ +# Schedulers + +For more information on the schedulers, please refer to the [docs](https://huggingface.co/docs/diffusers/api/schedulers/overview). \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..29052c1ba0cbf404bd446487a39d2eb7ca3abf40 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/__init__.py @@ -0,0 +1,224 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import TYPE_CHECKING + +from ..utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_flax_available, + is_scipy_available, + is_torch_available, + is_torchsde_available, +) + + +_dummy_modules = {} +_import_structure = {} + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_pt_objects # noqa F403 + + _dummy_modules.update(get_objects_from_module(dummy_pt_objects)) + +else: + _import_structure["deprecated"] = ["KarrasVeScheduler", "ScoreSdeVpScheduler"] + _import_structure["scheduling_amused"] = ["AmusedScheduler"] + _import_structure["scheduling_consistency_decoder"] = ["ConsistencyDecoderScheduler"] + _import_structure["scheduling_consistency_models"] = ["CMStochasticIterativeScheduler"] + _import_structure["scheduling_ddim"] = ["DDIMScheduler"] + _import_structure["scheduling_ddim_cogvideox"] = ["CogVideoXDDIMScheduler"] + _import_structure["scheduling_ddim_inverse"] = ["DDIMInverseScheduler"] + _import_structure["scheduling_ddim_parallel"] = ["DDIMParallelScheduler"] + _import_structure["scheduling_ddpm"] = ["DDPMScheduler"] + _import_structure["scheduling_ddpm_parallel"] = ["DDPMParallelScheduler"] + _import_structure["scheduling_ddpm_wuerstchen"] = ["DDPMWuerstchenScheduler"] + _import_structure["scheduling_deis_multistep"] = ["DEISMultistepScheduler"] + _import_structure["scheduling_dpm_cogvideox"] = ["CogVideoXDPMScheduler"] + _import_structure["scheduling_dpmsolver_multistep"] = ["DPMSolverMultistepScheduler"] + _import_structure["scheduling_dpmsolver_multistep_inverse"] = ["DPMSolverMultistepInverseScheduler"] + _import_structure["scheduling_dpmsolver_singlestep"] = ["DPMSolverSinglestepScheduler"] + _import_structure["scheduling_edm_dpmsolver_multistep"] = ["EDMDPMSolverMultistepScheduler"] + _import_structure["scheduling_edm_euler"] = ["EDMEulerScheduler"] + _import_structure["scheduling_euler_ancestral_discrete"] = ["EulerAncestralDiscreteScheduler"] + _import_structure["scheduling_euler_discrete"] = ["EulerDiscreteScheduler"] + _import_structure["scheduling_flow_match_euler_discrete"] = ["FlowMatchEulerDiscreteScheduler"] + _import_structure["scheduling_flow_match_heun_discrete"] = ["FlowMatchHeunDiscreteScheduler"] + _import_structure["scheduling_flow_match_lcm"] = ["FlowMatchLCMScheduler"] + _import_structure["scheduling_heun_discrete"] = ["HeunDiscreteScheduler"] + _import_structure["scheduling_ipndm"] = ["IPNDMScheduler"] + _import_structure["scheduling_k_dpm_2_ancestral_discrete"] = ["KDPM2AncestralDiscreteScheduler"] + _import_structure["scheduling_k_dpm_2_discrete"] = ["KDPM2DiscreteScheduler"] + _import_structure["scheduling_lcm"] = ["LCMScheduler"] + _import_structure["scheduling_pndm"] = ["PNDMScheduler"] + _import_structure["scheduling_repaint"] = ["RePaintScheduler"] + _import_structure["scheduling_sasolver"] = ["SASolverScheduler"] + _import_structure["scheduling_scm"] = ["SCMScheduler"] + _import_structure["scheduling_sde_ve"] = ["ScoreSdeVeScheduler"] + _import_structure["scheduling_tcd"] = ["TCDScheduler"] + _import_structure["scheduling_unclip"] = ["UnCLIPScheduler"] + _import_structure["scheduling_unipc_multistep"] = ["UniPCMultistepScheduler"] + _import_structure["scheduling_utils"] = ["AysSchedules", "KarrasDiffusionSchedulers", "SchedulerMixin"] + _import_structure["scheduling_vq_diffusion"] = ["VQDiffusionScheduler"] + +try: + if not is_flax_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_flax_objects # noqa F403 + + _dummy_modules.update(get_objects_from_module(dummy_flax_objects)) + +else: + _import_structure["scheduling_ddim_flax"] = ["FlaxDDIMScheduler"] + _import_structure["scheduling_ddpm_flax"] = ["FlaxDDPMScheduler"] + _import_structure["scheduling_dpmsolver_multistep_flax"] = ["FlaxDPMSolverMultistepScheduler"] + _import_structure["scheduling_euler_discrete_flax"] = ["FlaxEulerDiscreteScheduler"] + _import_structure["scheduling_karras_ve_flax"] = ["FlaxKarrasVeScheduler"] + _import_structure["scheduling_lms_discrete_flax"] = ["FlaxLMSDiscreteScheduler"] + _import_structure["scheduling_pndm_flax"] = ["FlaxPNDMScheduler"] + _import_structure["scheduling_sde_ve_flax"] = ["FlaxScoreSdeVeScheduler"] + _import_structure["scheduling_utils_flax"] = [ + "FlaxKarrasDiffusionSchedulers", + "FlaxSchedulerMixin", + "FlaxSchedulerOutput", + "broadcast_to_shape_from_left", + ] + + +try: + if not (is_torch_available() and is_scipy_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_torch_and_scipy_objects # noqa F403 + + _dummy_modules.update(get_objects_from_module(dummy_torch_and_scipy_objects)) + +else: + _import_structure["scheduling_lms_discrete"] = ["LMSDiscreteScheduler"] + +try: + if not (is_torch_available() and is_torchsde_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_torch_and_torchsde_objects # noqa F403 + + _dummy_modules.update(get_objects_from_module(dummy_torch_and_torchsde_objects)) + +else: + _import_structure["scheduling_cosine_dpmsolver_multistep"] = ["CosineDPMSolverMultistepScheduler"] + _import_structure["scheduling_dpmsolver_sde"] = ["DPMSolverSDEScheduler"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + from ..utils import ( + OptionalDependencyNotAvailable, + is_flax_available, + is_scipy_available, + is_torch_available, + is_torchsde_available, + ) + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_pt_objects import * # noqa F403 + else: + from .deprecated import KarrasVeScheduler, ScoreSdeVpScheduler + from .scheduling_amused import AmusedScheduler + from .scheduling_consistency_decoder import ConsistencyDecoderScheduler + from .scheduling_consistency_models import CMStochasticIterativeScheduler + from .scheduling_ddim import DDIMScheduler + from .scheduling_ddim_cogvideox import CogVideoXDDIMScheduler + from .scheduling_ddim_inverse import DDIMInverseScheduler + from .scheduling_ddim_parallel import DDIMParallelScheduler + from .scheduling_ddpm import DDPMScheduler + from .scheduling_ddpm_parallel import DDPMParallelScheduler + from .scheduling_ddpm_wuerstchen import DDPMWuerstchenScheduler + from .scheduling_deis_multistep import DEISMultistepScheduler + from .scheduling_dpm_cogvideox import CogVideoXDPMScheduler + from .scheduling_dpmsolver_multistep import DPMSolverMultistepScheduler + from .scheduling_dpmsolver_multistep_inverse import DPMSolverMultistepInverseScheduler + from .scheduling_dpmsolver_singlestep import DPMSolverSinglestepScheduler + from .scheduling_edm_dpmsolver_multistep import EDMDPMSolverMultistepScheduler + from .scheduling_edm_euler import EDMEulerScheduler + from .scheduling_euler_ancestral_discrete import EulerAncestralDiscreteScheduler + from .scheduling_euler_discrete import EulerDiscreteScheduler + from .scheduling_flow_match_euler_discrete import FlowMatchEulerDiscreteScheduler + from .scheduling_flow_match_heun_discrete import FlowMatchHeunDiscreteScheduler + from .scheduling_flow_match_lcm import FlowMatchLCMScheduler + from .scheduling_heun_discrete import HeunDiscreteScheduler + from .scheduling_ipndm import IPNDMScheduler + from .scheduling_k_dpm_2_ancestral_discrete import KDPM2AncestralDiscreteScheduler + from .scheduling_k_dpm_2_discrete import KDPM2DiscreteScheduler + from .scheduling_lcm import LCMScheduler + from .scheduling_pndm import PNDMScheduler + from .scheduling_repaint import RePaintScheduler + from .scheduling_sasolver import SASolverScheduler + from .scheduling_scm import SCMScheduler + from .scheduling_sde_ve import ScoreSdeVeScheduler + from .scheduling_tcd import TCDScheduler + from .scheduling_unclip import UnCLIPScheduler + from .scheduling_unipc_multistep import UniPCMultistepScheduler + from .scheduling_utils import AysSchedules, KarrasDiffusionSchedulers, SchedulerMixin + from .scheduling_vq_diffusion import VQDiffusionScheduler + try: + if not is_flax_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_flax_objects import * # noqa F403 + else: + from .scheduling_ddim_flax import FlaxDDIMScheduler + from .scheduling_ddpm_flax import FlaxDDPMScheduler + from .scheduling_dpmsolver_multistep_flax import FlaxDPMSolverMultistepScheduler + from .scheduling_euler_discrete_flax import FlaxEulerDiscreteScheduler + from .scheduling_karras_ve_flax import FlaxKarrasVeScheduler + from .scheduling_lms_discrete_flax import FlaxLMSDiscreteScheduler + from .scheduling_pndm_flax import FlaxPNDMScheduler + from .scheduling_sde_ve_flax import FlaxScoreSdeVeScheduler + from .scheduling_utils_flax import ( + FlaxKarrasDiffusionSchedulers, + FlaxSchedulerMixin, + FlaxSchedulerOutput, + broadcast_to_shape_from_left, + ) + + try: + if not (is_torch_available() and is_scipy_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_torch_and_scipy_objects import * # noqa F403 + else: + from .scheduling_lms_discrete import LMSDiscreteScheduler + + try: + if not (is_torch_available() and is_torchsde_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_torch_and_torchsde_objects import * # noqa F403 + else: + from .scheduling_cosine_dpmsolver_multistep import CosineDPMSolverMultistepScheduler + from .scheduling_dpmsolver_sde import DPMSolverSDEScheduler + +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__) + for name, value in _dummy_modules.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..479cf9bd568be320b60e87a831bf80835e9943f2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/__init__.py @@ -0,0 +1,50 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_pt_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_pt_objects)) +else: + _import_structure["scheduling_karras_ve"] = ["KarrasVeScheduler"] + _import_structure["scheduling_sde_vp"] = ["ScoreSdeVpScheduler"] + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_pt_objects import * # noqa F403 + else: + from .scheduling_karras_ve import KarrasVeScheduler + from .scheduling_sde_vp import ScoreSdeVpScheduler + + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/scheduling_karras_ve.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/scheduling_karras_ve.py new file mode 100644 index 0000000000000000000000000000000000000000..9206ee80a6b64d1a651113f8c97683b33efe8c0e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/scheduling_karras_ve.py @@ -0,0 +1,240 @@ +# Copyright 2025 NVIDIA and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import numpy as np +import torch + +from ...configuration_utils import ConfigMixin, register_to_config +from ...utils import BaseOutput +from ...utils.torch_utils import randn_tensor +from ..scheduling_utils import SchedulerMixin + + +@dataclass +class KarrasVeOutput(BaseOutput): + """ + Output class for the scheduler's step function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample (x_{t-1}) of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + derivative (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Derivative of predicted original image sample (x_0). + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample (x_{0}) based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + derivative: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +class KarrasVeScheduler(SchedulerMixin, ConfigMixin): + """ + A stochastic scheduler tailored to variance-expanding models. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + > [!TIP] > For more details on the parameters, see [Appendix E](https://huggingface.co/papers/2206.00364). The grid + search > values used to find the optimal `{s_noise, s_churn, s_min, s_max}` for a specific model are described in + Table 5 of > the paper. + + Args: + sigma_min (`float`, defaults to 0.02): + The minimum noise magnitude. + sigma_max (`float`, defaults to 100): + The maximum noise magnitude. + s_noise (`float`, defaults to 1.007): + The amount of additional noise to counteract loss of detail during sampling. A reasonable range is [1.000, + 1.011]. + s_churn (`float`, defaults to 80): + The parameter controlling the overall amount of stochasticity. A reasonable range is [0, 100]. + s_min (`float`, defaults to 0.05): + The start value of the sigma range to add noise (enable stochasticity). A reasonable range is [0, 10]. + s_max (`float`, defaults to 50): + The end value of the sigma range to add noise. A reasonable range is [0.2, 80]. + """ + + order = 2 + + @register_to_config + def __init__( + self, + sigma_min: float = 0.02, + sigma_max: float = 100, + s_noise: float = 1.007, + s_churn: float = 80, + s_min: float = 0.05, + s_max: float = 50, + ): + # standard deviation of the initial noise distribution + self.init_noise_sigma = sigma_max + + # setable values + self.num_inference_steps: int = None + self.timesteps: np.IntTensor = None + self.schedule: torch.Tensor = None # sigma(t_i) + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.num_inference_steps = num_inference_steps + timesteps = np.arange(0, self.num_inference_steps)[::-1].copy() + self.timesteps = torch.from_numpy(timesteps).to(device) + schedule = [ + ( + self.config.sigma_max**2 + * (self.config.sigma_min**2 / self.config.sigma_max**2) ** (i / (num_inference_steps - 1)) + ) + for i in self.timesteps + ] + self.schedule = torch.tensor(schedule, dtype=torch.float32, device=device) + + def add_noise_to_input( + self, sample: torch.Tensor, sigma: float, generator: Optional[torch.Generator] = None + ) -> Tuple[torch.Tensor, float]: + """ + Explicit Langevin-like "churn" step of adding noise to the sample according to a `gamma_i ≥ 0` to reach a + higher noise level `sigma_hat = sigma_i + gamma_i*sigma_i`. + + Args: + sample (`torch.Tensor`): + The input sample. + sigma (`float`): + generator (`torch.Generator`, *optional*): + A random number generator. + """ + if self.config.s_min <= sigma <= self.config.s_max: + gamma = min(self.config.s_churn / self.num_inference_steps, 2**0.5 - 1) + else: + gamma = 0 + + # sample eps ~ N(0, S_noise^2 * I) + eps = self.config.s_noise * randn_tensor(sample.shape, generator=generator).to(sample.device) + sigma_hat = sigma + gamma * sigma + sample_hat = sample + ((sigma_hat**2 - sigma**2) ** 0.5 * eps) + + return sample_hat, sigma_hat + + def step( + self, + model_output: torch.Tensor, + sigma_hat: float, + sigma_prev: float, + sample_hat: torch.Tensor, + return_dict: bool = True, + ) -> Union[KarrasVeOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + sigma_hat (`float`): + sigma_prev (`float`): + sample_hat (`torch.Tensor`): + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_karras_ve.KarrasVESchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_karras_ve.KarrasVESchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_karras_ve.KarrasVESchedulerOutput`] is returned, + otherwise a tuple is returned where the first element is the sample tensor. + + """ + + pred_original_sample = sample_hat + sigma_hat * model_output + derivative = (sample_hat - pred_original_sample) / sigma_hat + sample_prev = sample_hat + (sigma_prev - sigma_hat) * derivative + + if not return_dict: + return (sample_prev, derivative) + + return KarrasVeOutput( + prev_sample=sample_prev, derivative=derivative, pred_original_sample=pred_original_sample + ) + + def step_correct( + self, + model_output: torch.Tensor, + sigma_hat: float, + sigma_prev: float, + sample_hat: torch.Tensor, + sample_prev: torch.Tensor, + derivative: torch.Tensor, + return_dict: bool = True, + ) -> Union[KarrasVeOutput, Tuple]: + """ + Corrects the predicted sample based on the `model_output` of the network. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + sigma_hat (`float`): TODO + sigma_prev (`float`): TODO + sample_hat (`torch.Tensor`): TODO + sample_prev (`torch.Tensor`): TODO + derivative (`torch.Tensor`): TODO + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_ddpm.DDPMSchedulerOutput`] or `tuple`. + + Returns: + prev_sample (TODO): updated sample in the diffusion chain. derivative (TODO): TODO + + """ + pred_original_sample = sample_prev + sigma_prev * model_output + derivative_corr = (sample_prev - pred_original_sample) / sigma_prev + sample_prev = sample_hat + (sigma_prev - sigma_hat) * (0.5 * derivative + 0.5 * derivative_corr) + + if not return_dict: + return (sample_prev, derivative) + + return KarrasVeOutput( + prev_sample=sample_prev, derivative=derivative, pred_original_sample=pred_original_sample + ) + + def add_noise(self, original_samples, noise, timesteps): + raise NotImplementedError() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/scheduling_sde_vp.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/scheduling_sde_vp.py new file mode 100644 index 0000000000000000000000000000000000000000..5088bdb4976182468cbe64a3b378974c23654888 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/deprecated/scheduling_sde_vp.py @@ -0,0 +1,109 @@ +# Copyright 2025 Google Brain and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/yang-song/score_sde_pytorch + +import math +from typing import Union + +import torch + +from ...configuration_utils import ConfigMixin, register_to_config +from ...utils.torch_utils import randn_tensor +from ..scheduling_utils import SchedulerMixin + + +class ScoreSdeVpScheduler(SchedulerMixin, ConfigMixin): + """ + `ScoreSdeVpScheduler` is a variance preserving stochastic differential equation (SDE) scheduler. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 2000): + The number of diffusion steps to train the model. + beta_min (`int`, defaults to 0.1): + beta_max (`int`, defaults to 20): + sampling_eps (`int`, defaults to 1e-3): + The end value of sampling where timesteps decrease progressively from 1 to epsilon. + """ + + order = 1 + + @register_to_config + def __init__(self, num_train_timesteps=2000, beta_min=0.1, beta_max=20, sampling_eps=1e-3): + self.sigmas = None + self.discrete_sigmas = None + self.timesteps = None + + def set_timesteps(self, num_inference_steps, device: Union[str, torch.device] = None): + """ + Sets the continuous timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.timesteps = torch.linspace(1, self.config.sampling_eps, num_inference_steps, device=device) + + def step_pred(self, score, x, t, generator=None): + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + score (): + x (): + t (): + generator (`torch.Generator`, *optional*): + A random number generator. + """ + if self.timesteps is None: + raise ValueError( + "`self.timesteps` is not set, you need to run 'set_timesteps' after creating the scheduler" + ) + + # TODO(Patrick) better comments + non-PyTorch + # postprocess model score + log_mean_coeff = -0.25 * t**2 * (self.config.beta_max - self.config.beta_min) - 0.5 * t * self.config.beta_min + std = torch.sqrt(1.0 - torch.exp(2.0 * log_mean_coeff)) + std = std.flatten() + while len(std.shape) < len(score.shape): + std = std.unsqueeze(-1) + score = -score / std + + # compute + dt = -1.0 / len(self.timesteps) + + beta_t = self.config.beta_min + t * (self.config.beta_max - self.config.beta_min) + beta_t = beta_t.flatten() + while len(beta_t.shape) < len(x.shape): + beta_t = beta_t.unsqueeze(-1) + drift = -0.5 * beta_t * x + + diffusion = torch.sqrt(beta_t) + drift = drift - diffusion**2 * score + x_mean = x + drift * dt + + # add noise + noise = randn_tensor(x.shape, layout=x.layout, generator=generator, device=x.device, dtype=x.dtype) + x = x_mean + diffusion * math.sqrt(-dt) * noise + + return x, x_mean + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_amused.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_amused.py new file mode 100644 index 0000000000000000000000000000000000000000..a0b8fbc862b01c03ae2623dc19dcffae43c42de4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_amused.py @@ -0,0 +1,275 @@ +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from .scheduling_utils import SchedulerMixin + + +def gumbel_noise(t: torch.Tensor, generator: Optional[torch.Generator] = None) -> torch.Tensor: + """ + Generate Gumbel noise for sampling. + + Args: + t (`torch.Tensor`): + Input tensor to match the shape and dtype of the output noise. + generator (`torch.Generator`, *optional*): + A random number generator for reproducible sampling. + + Returns: + `torch.Tensor`: + Gumbel-distributed noise with the same shape, dtype, and device as the input tensor. + """ + device = generator.device if generator is not None else t.device + noise = torch.zeros_like(t, device=device).uniform_(0, 1, generator=generator).to(t.device) + return -torch.log((-torch.log(noise.clamp(1e-20))).clamp(1e-20)) + + +def mask_by_random_topk( + mask_len: torch.Tensor, + probs: torch.Tensor, + temperature: float = 1.0, + generator: Optional[torch.Generator] = None, +) -> torch.Tensor: + """ + Mask tokens by selecting the top-k lowest confidence scores with temperature-based randomness. + + Args: + mask_len (`torch.Tensor`): + Number of tokens to mask per sample in the batch. + probs (`torch.Tensor`): + Probability scores for each token. + temperature (`float`, *optional*, defaults to 1.0): + Temperature parameter for controlling randomness in the masking process. + generator (`torch.Generator`, *optional*): + A random number generator for reproducible sampling. + + Returns: + `torch.Tensor`: + Boolean mask indicating which tokens should be masked. + """ + confidence = torch.log(probs.clamp(1e-20)) + temperature * gumbel_noise(probs, generator=generator) + sorted_confidence = torch.sort(confidence, dim=-1).values + cut_off = torch.gather(sorted_confidence, 1, mask_len.long()) + masking = confidence < cut_off + return masking + + +@dataclass +class AmusedSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.LongTensor` of shape `(batch_size, height, width)` or `(batch_size, sequence_length)`): + Computed sample `(x_{t-1})` of previous timestep with token IDs. `prev_sample` should be used as next model + input in the denoising loop. + pred_original_sample (`torch.LongTensor` of shape `(batch_size, height, width)` or `(batch_size, sequence_length)`, *optional*): + The predicted fully denoised sample `(x_{0})` with token IDs based on the model output from the current + timestep. `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +class AmusedScheduler(SchedulerMixin, ConfigMixin): + """ + A scheduler for masked token generation as used in [`AmusedPipeline`]. + + This scheduler iteratively unmasks tokens based on their confidence scores, following either a cosine or linear + schedule. Unlike traditional diffusion schedulers that work with continuous pixel values, this scheduler operates + on discrete token IDs, making it suitable for autoregressive and non-autoregressive masked token generation models. + + This scheduler inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the + generic methods the library implements for all schedulers such as loading and saving. + + Args: + mask_token_id (`int`): + The token ID used to represent masked tokens in the sequence. + masking_schedule (`Literal["cosine", "linear"]`, *optional*, defaults to `"cosine"`): + The schedule type for determining the mask ratio at each timestep. Can be either `"cosine"` or `"linear"`. + """ + + order = 1 + + temperatures: Optional[torch.Tensor] + timesteps: Optional[torch.Tensor] + + @register_to_config + def __init__( + self, + mask_token_id: int, + masking_schedule: Literal["cosine", "linear"] = "cosine", + ): + self.temperatures = None + self.timesteps = None + + def set_timesteps( + self, + num_inference_steps: int, + temperature: Union[float, Tuple[float, float], List[float]] = (2, 0), + device: Optional[Union[str, torch.device]] = None, + ) -> None: + """ + Set the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + temperature (`Union[float, Tuple[float, float], List[float]]`, *optional*, defaults to `(2, 0)`): + Temperature parameter(s) for controlling the randomness of sampling. If a tuple or list is provided, + temperatures will be linearly interpolated between the first and second values across all timesteps. If + a single value is provided, temperatures will be linearly interpolated from that value to 0.01. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps and temperatures should be moved to. If `None`, the timesteps are not + moved. + """ + self.timesteps = torch.arange(num_inference_steps, device=device).flip(0) + + if isinstance(temperature, (tuple, list)): + self.temperatures = torch.linspace(temperature[0], temperature[1], num_inference_steps, device=device) + else: + self.temperatures = torch.linspace(temperature, 0.01, num_inference_steps, device=device) + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.LongTensor, + starting_mask_ratio: float = 1.0, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[AmusedSchedulerOutput, Tuple[torch.Tensor, torch.Tensor]]: + """ + Predict the sample at the previous timestep by masking tokens based on confidence scores. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. Typically of shape `(batch_size, num_tokens, + codebook_size)` or `(batch_size, codebook_size, height, width)` for 2D inputs. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.LongTensor`): + A current instance of a sample created by the diffusion process. Contains token IDs, with masked + positions indicated by `mask_token_id`. + starting_mask_ratio (`float`, *optional*, defaults to 1.0): + A multiplier applied to the mask ratio schedule. Values less than 1.0 will result in fewer tokens being + masked at each step. + generator (`torch.Generator`, *optional*): + A random number generator for reproducible sampling. + return_dict (`bool`, *optional*, defaults to `True`): + Whether to return an [`~schedulers.scheduling_amused.AmusedSchedulerOutput`] or a plain tuple. + + Returns: + [`~schedulers.scheduling_amused.AmusedSchedulerOutput`] or `tuple`: + If `return_dict` is `True`, [`~schedulers.scheduling_amused.AmusedSchedulerOutput`] is returned, + otherwise a tuple is returned where the first element is the sample tensor (`prev_sample`) and the + second element is the predicted original sample tensor (`pred_original_sample`). + """ + two_dim_input = sample.ndim == 3 and model_output.ndim == 4 + + if two_dim_input: + batch_size, codebook_size, height, width = model_output.shape + sample = sample.reshape(batch_size, height * width) + model_output = model_output.reshape(batch_size, codebook_size, height * width).permute(0, 2, 1) + + unknown_map = sample == self.config.mask_token_id + + probs = model_output.softmax(dim=-1) + + device = probs.device + probs_ = probs.to(generator.device) if generator is not None else probs # handles when generator is on CPU + if probs_.device.type == "cpu" and probs_.dtype != torch.float32: + probs_ = probs_.float() # multinomial is not implemented for cpu half precision + probs_ = probs_.reshape(-1, probs.size(-1)) + pred_original_sample = torch.multinomial(probs_, 1, generator=generator).to(device=device) + pred_original_sample = pred_original_sample[:, 0].view(*probs.shape[:-1]) + pred_original_sample = torch.where(unknown_map, pred_original_sample, sample) + + if timestep == 0: + prev_sample = pred_original_sample + else: + seq_len = sample.shape[1] + step_idx = (self.timesteps == timestep).nonzero() + ratio = (step_idx + 1) / len(self.timesteps) + + if self.config.masking_schedule == "cosine": + mask_ratio = torch.cos(ratio * math.pi / 2) + elif self.config.masking_schedule == "linear": + mask_ratio = 1 - ratio + else: + raise ValueError(f"unknown masking schedule {self.config.masking_schedule}") + + mask_ratio = starting_mask_ratio * mask_ratio + + mask_len = (seq_len * mask_ratio).floor() + # do not mask more than amount previously masked + mask_len = torch.min(unknown_map.sum(dim=-1, keepdim=True) - 1, mask_len) + # mask at least one + mask_len = torch.max(torch.tensor([1], device=model_output.device), mask_len) + + selected_probs = torch.gather(probs, -1, pred_original_sample[:, :, None])[:, :, 0] + # Ignores the tokens given in the input by overwriting their confidence. + selected_probs = torch.where(unknown_map, selected_probs, torch.finfo(selected_probs.dtype).max) + + masking = mask_by_random_topk(mask_len, selected_probs, self.temperatures[step_idx], generator) + + # Masks tokens with lower confidence. + prev_sample = torch.where(masking, self.config.mask_token_id, pred_original_sample) + + if two_dim_input: + prev_sample = prev_sample.reshape(batch_size, height, width) + pred_original_sample = pred_original_sample.reshape(batch_size, height, width) + + if not return_dict: + return (prev_sample, pred_original_sample) + + return AmusedSchedulerOutput(prev_sample, pred_original_sample) + + def add_noise( + self, + sample: torch.LongTensor, + timesteps: int, + generator: Optional[torch.Generator] = None, + ) -> torch.LongTensor: + """ + Add noise to a sample by randomly masking tokens according to the masking schedule. + + Args: + sample (`torch.LongTensor`): + The input sample containing token IDs to be partially masked. + timesteps (`int`): + The timestep that determines how much masking to apply. Higher timesteps result in more masking. + generator (`torch.Generator`, *optional*): + A random number generator for reproducible masking. + + Returns: + `torch.LongTensor`: + The sample with some tokens replaced by `mask_token_id` according to the masking schedule. + """ + step_idx = (self.timesteps == timesteps).nonzero() + ratio = (step_idx + 1) / len(self.timesteps) + + if self.config.masking_schedule == "cosine": + mask_ratio = torch.cos(ratio * math.pi / 2) + elif self.config.masking_schedule == "linear": + mask_ratio = 1 - ratio + else: + raise ValueError(f"unknown masking schedule {self.config.masking_schedule}") + + mask_indices = ( + torch.rand( + sample.shape, device=generator.device if generator is not None else sample.device, generator=generator + ).to(sample.device) + < mask_ratio + ) + + masked_sample = sample.clone() + + masked_sample[mask_indices] = self.config.mask_token_id + + return masked_sample diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_consistency_decoder.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_consistency_decoder.py new file mode 100644 index 0000000000000000000000000000000000000000..767fa9157f5930215dcfe20e3b30c62bb5b86464 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_consistency_decoder.py @@ -0,0 +1,181 @@ +import math +from dataclasses import dataclass +from typing import Literal, Optional, Tuple, Union + +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +@dataclass +class ConsistencyDecoderSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: torch.Tensor + + +class ConsistencyDecoderScheduler(SchedulerMixin, ConfigMixin): + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1024, + sigma_data: float = 0.5, + ): + betas = betas_for_alpha_bar(num_train_timesteps) + + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + + self.sqrt_alphas_cumprod = torch.sqrt(alphas_cumprod) + self.sqrt_one_minus_alphas_cumprod = torch.sqrt(1.0 - alphas_cumprod) + + sigmas = torch.sqrt(1.0 / alphas_cumprod - 1) + + sqrt_recip_alphas_cumprod = torch.sqrt(1.0 / alphas_cumprod) + + self.c_skip = sqrt_recip_alphas_cumprod * sigma_data**2 / (sigmas**2 + sigma_data**2) + self.c_out = sigmas * sigma_data / (sigmas**2 + sigma_data**2) ** 0.5 + self.c_in = sqrt_recip_alphas_cumprod / (sigmas**2 + sigma_data**2) ** 0.5 + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + ): + if num_inference_steps != 2: + raise ValueError("Currently more than 2 inference steps are not supported.") + + self.timesteps = torch.tensor([1008, 512], dtype=torch.long, device=device) + self.sqrt_alphas_cumprod = self.sqrt_alphas_cumprod.to(device) + self.sqrt_one_minus_alphas_cumprod = self.sqrt_one_minus_alphas_cumprod.to(device) + self.c_skip = self.c_skip.to(device) + self.c_out = self.c_out.to(device) + self.c_in = self.c_in.to(device) + + @property + def init_noise_sigma(self): + return self.sqrt_one_minus_alphas_cumprod[self.timesteps[0]] + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample * self.c_in[timestep] + + def step( + self, + model_output: torch.Tensor, + timestep: Union[float, torch.Tensor], + sample: torch.Tensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[ConsistencyDecoderSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + timestep (`float`): + The current timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a + [`~schedulers.scheduling_consistency_models.ConsistencyDecoderSchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_consistency_models.ConsistencyDecoderSchedulerOutput`] or `tuple`: + If return_dict is `True`, + [`~schedulers.scheduling_consistency_models.ConsistencyDecoderSchedulerOutput`] is returned, otherwise + a tuple is returned where the first element is the sample tensor. + """ + x_0 = self.c_out[timestep] * model_output + self.c_skip[timestep] * sample + + timestep_idx = torch.where(self.timesteps == timestep)[0] + + if timestep_idx == len(self.timesteps) - 1: + prev_sample = x_0 + else: + noise = randn_tensor(x_0.shape, generator=generator, dtype=x_0.dtype, device=x_0.device) + prev_sample = ( + self.sqrt_alphas_cumprod[self.timesteps[timestep_idx + 1]].to(x_0.dtype) * x_0 + + self.sqrt_one_minus_alphas_cumprod[self.timesteps[timestep_idx + 1]].to(x_0.dtype) * noise + ) + + if not return_dict: + return (prev_sample,) + + return ConsistencyDecoderSchedulerOutput(prev_sample=prev_sample) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_consistency_models.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_consistency_models.py new file mode 100644 index 0000000000000000000000000000000000000000..386a43db0f9cf7246debcc6162761543c6ec62ca --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_consistency_models.py @@ -0,0 +1,479 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, logging +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +class CMStochasticIterativeSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: torch.Tensor + + +class CMStochasticIterativeScheduler(SchedulerMixin, ConfigMixin): + """ + Multistep and onestep sampling for consistency models. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 40): + The number of diffusion steps to train the model. + sigma_min (`float`, defaults to 0.002): + Minimum noise magnitude in the sigma schedule. Defaults to 0.002 from the original implementation. + sigma_max (`float`, defaults to 80.0): + Maximum noise magnitude in the sigma schedule. Defaults to 80.0 from the original implementation. + sigma_data (`float`, defaults to 0.5): + The standard deviation of the data distribution from the EDM + [paper](https://huggingface.co/papers/2206.00364). Defaults to 0.5 from the original implementation. + s_noise (`float`, defaults to 1.0): + The amount of additional noise to counteract loss of detail during sampling. A reasonable range is [1.000, + 1.011]. Defaults to 1.0 from the original implementation. + rho (`float`, defaults to 7.0): + The parameter for calculating the Karras sigma schedule from the EDM + [paper](https://huggingface.co/papers/2206.00364). Defaults to 7.0 from the original implementation. + clip_denoised (`bool`, defaults to `True`): + Whether to clip the denoised outputs to `(-1, 1)`. + timesteps (`List` or `np.ndarray` or `torch.Tensor`, *optional*): + An explicit timestep schedule that can be optionally specified. The timesteps are expected to be in + increasing order. + """ + + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 40, + sigma_min: float = 0.002, + sigma_max: float = 80.0, + sigma_data: float = 0.5, + s_noise: float = 1.0, + rho: float = 7.0, + clip_denoised: bool = True, + ): + # standard deviation of the initial noise distribution + self.init_noise_sigma = sigma_max + + ramp = np.linspace(0, 1, num_train_timesteps) + sigmas = self._convert_to_karras(ramp) + timesteps = self.sigma_to_t(sigmas) + + # setable values + self.num_inference_steps = None + self.sigmas = torch.from_numpy(sigmas) + self.timesteps = torch.from_numpy(timesteps) + self.custom_timesteps = False + self.is_scale_input_called = False + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input(self, sample: torch.Tensor, timestep: Union[float, torch.Tensor]) -> torch.Tensor: + """ + Scales the consistency model input by `(sigma**2 + sigma_data**2) ** 0.5`. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`float` or `torch.Tensor`): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + # Get sigma corresponding to timestep + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + + sample = sample / ((sigma**2 + self.config.sigma_data**2) ** 0.5) + + self.is_scale_input_called = True + return sample + + def sigma_to_t(self, sigmas: Union[float, np.ndarray]): + """ + Gets scaled timesteps from the Karras sigmas for input to the consistency model. + + Args: + sigmas (`float` or `np.ndarray`): + A single Karras sigma or an array of Karras sigmas. + + Returns: + `float` or `np.ndarray`: + A scaled input timestep or scaled input timestep array. + """ + if not isinstance(sigmas, np.ndarray): + sigmas = np.array(sigmas, dtype=np.float64) + + timesteps = 1000 * 0.25 * np.log(sigmas + 1e-44) + + return timesteps + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + timesteps: Optional[List[int]] = None, + ): + """ + Sets the timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary spacing between timesteps. If `None`, then the default + timestep spacing strategy of equal spacing between timesteps is used. If `timesteps` is passed, + `num_inference_steps` must be `None`. + """ + if num_inference_steps is None and timesteps is None: + raise ValueError("Exactly one of `num_inference_steps` or `timesteps` must be supplied.") + + if num_inference_steps is not None and timesteps is not None: + raise ValueError("Can only pass one of `num_inference_steps` or `timesteps`.") + + # Follow DDPMScheduler custom timesteps logic + if timesteps is not None: + for i in range(1, len(timesteps)): + if timesteps[i] >= timesteps[i - 1]: + raise ValueError("`timesteps` must be in descending order.") + + if timesteps[0] >= self.config.num_train_timesteps: + raise ValueError( + f"`timesteps` must start before `self.config.train_timesteps`: {self.config.num_train_timesteps}." + ) + + timesteps = np.array(timesteps, dtype=np.int64) + self.custom_timesteps = True + else: + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + self.num_inference_steps = num_inference_steps + + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.int64) + self.custom_timesteps = False + + # Map timesteps to Karras sigmas directly for multistep sampling + # See https://github.com/openai/consistency_models/blob/main/cm/karras_diffusion.py#L675 + num_train_timesteps = self.config.num_train_timesteps + ramp = timesteps[::-1].copy() + ramp = ramp / (num_train_timesteps - 1) + sigmas = self._convert_to_karras(ramp) + timesteps = self.sigma_to_t(sigmas) + + sigmas = np.concatenate([sigmas, [self.config.sigma_min]]).astype(np.float32) + self.sigmas = torch.from_numpy(sigmas).to(device=device) + + if str(device).startswith("mps"): + # mps does not support float64 + self.timesteps = torch.from_numpy(timesteps).to(device, dtype=torch.float32) + else: + self.timesteps = torch.from_numpy(timesteps).to(device=device) + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Modified _convert_to_karras implementation that takes in ramp as argument + def _convert_to_karras(self, ramp): + """Constructs the noise schedule of Karras et al. (2022).""" + + sigma_min: float = self.config.sigma_min + sigma_max: float = self.config.sigma_max + + rho = self.config.rho + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + def get_scalings(self, sigma): + sigma_data = self.config.sigma_data + + c_skip = sigma_data**2 / (sigma**2 + sigma_data**2) + c_out = sigma * sigma_data / (sigma**2 + sigma_data**2) ** 0.5 + return c_skip, c_out + + def get_scalings_for_boundary_condition(self, sigma): + """ + Gets the scalings used in the consistency model parameterization (from Appendix C of the + [paper](https://huggingface.co/papers/2303.01469)) to enforce boundary condition. + + > [!TIP] > `epsilon` in the equations for `c_skip` and `c_out` is set to `sigma_min`. + + Args: + sigma (`torch.Tensor`): + The current sigma in the Karras sigma schedule. + + Returns: + `tuple`: + A two-element tuple where `c_skip` (which weights the current sample) is the first element and `c_out` + (which weights the consistency model output) is the second element. + """ + sigma_min = self.config.sigma_min + sigma_data = self.config.sigma_data + + c_skip = sigma_data**2 / ((sigma - sigma_min) ** 2 + sigma_data**2) + c_out = (sigma - sigma_min) * sigma_data / (sigma**2 + sigma_data**2) ** 0.5 + return c_skip, c_out + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[float, torch.Tensor], + sample: torch.Tensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[CMStochasticIterativeSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + timestep (`float`): + The current timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a + [`~schedulers.scheduling_consistency_models.CMStochasticIterativeSchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_consistency_models.CMStochasticIterativeSchedulerOutput`] or `tuple`: + If return_dict is `True`, + [`~schedulers.scheduling_consistency_models.CMStochasticIterativeSchedulerOutput`] is returned, + otherwise a tuple is returned where the first element is the sample tensor. + """ + + if isinstance(timestep, (int, torch.IntTensor, torch.LongTensor)): + raise ValueError( + ( + "Passing integer indices (e.g. from `enumerate(timesteps)`) as timesteps to" + f" `{self.__class__}.step()` is not supported. Make sure to pass" + " one of the `scheduler.timesteps` as a timestep." + ), + ) + + if not self.is_scale_input_called: + logger.warning( + "The `scale_model_input` function should be called before `step` to ensure correct denoising. " + "See `StableDiffusionPipeline` for a usage example." + ) + + sigma_min = self.config.sigma_min + sigma_max = self.config.sigma_max + + if self.step_index is None: + self._init_step_index(timestep) + + # sigma_next corresponds to next_t in original implementation + sigma = self.sigmas[self.step_index] + if self.step_index + 1 < self.config.num_train_timesteps: + sigma_next = self.sigmas[self.step_index + 1] + else: + # Set sigma_next to sigma_min + sigma_next = self.sigmas[-1] + + # Get scalings for boundary conditions + c_skip, c_out = self.get_scalings_for_boundary_condition(sigma) + + # 1. Denoise model output using boundary conditions + denoised = c_out * model_output + c_skip * sample + if self.config.clip_denoised: + denoised = denoised.clamp(-1, 1) + + # 2. Sample z ~ N(0, s_noise^2 * I) + # Noise is not used for onestep sampling. + if len(self.timesteps) > 1: + noise = randn_tensor( + model_output.shape, dtype=model_output.dtype, device=model_output.device, generator=generator + ) + else: + noise = torch.zeros_like(model_output) + z = noise * self.config.s_noise + + sigma_hat = sigma_next.clamp(min=sigma_min, max=sigma_max) + + # 3. Return noisy sample + # tau = sigma_hat, eps = sigma_min + prev_sample = denoised + z * (sigma_hat**2 - sigma_min**2) ** 0.5 + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return CMStochasticIterativeSchedulerOutput(prev_sample=prev_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_cosine_dpmsolver_multistep.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_cosine_dpmsolver_multistep.py new file mode 100644 index 0000000000000000000000000000000000000000..7b11d704932be61d52e7bb656db1cbd34ba6e73e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_cosine_dpmsolver_multistep.py @@ -0,0 +1,601 @@ +# Copyright 2025 TSAIL Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/LuChengTHU/dpm-solver and https://github.com/NVlabs/edm + +import math +from typing import List, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_dpmsolver_sde import BrownianTreeNoiseSampler +from .scheduling_utils import SchedulerMixin, SchedulerOutput + + +class CosineDPMSolverMultistepScheduler(SchedulerMixin, ConfigMixin): + """ + Implements a variant of `DPMSolverMultistepScheduler` with cosine schedule, proposed by Nichol and Dhariwal (2021). + This scheduler was used in Stable Audio Open [1]. + + [1] Evans, Parker, et al. "Stable Audio Open" https://huggingface.co/papers/2407.14358 + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + sigma_min (`float`, *optional*, defaults to 0.3): + Minimum noise magnitude in the sigma schedule. This was set to 0.3 in Stable Audio Open [1]. + sigma_max (`float`, *optional*, defaults to 500): + Maximum noise magnitude in the sigma schedule. This was set to 500 in Stable Audio Open [1]. + sigma_data (`float`, *optional*, defaults to 1.0): + The standard deviation of the data distribution. This is set to 1.0 in Stable Audio Open [1]. + sigma_schedule (`str`, *optional*, defaults to `exponential`): + Sigma schedule to compute the `sigmas`. By default, we the schedule introduced in the EDM paper + (https://huggingface.co/papers/2206.00364). Other acceptable value is "exponential". The exponential + schedule was incorporated in this model: https://huggingface.co/stabilityai/cosxl. + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + solver_order (`int`, defaults to 2): + The DPMSolver order which can be `1` or `2`. It is recommended to use `solver_order=2`. + prediction_type (`str`, defaults to `v_prediction`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + solver_type (`str`, defaults to `midpoint`): + Solver type for the second-order solver; can be `midpoint` or `heun`. The solver type slightly affects the + sample quality, especially for a small number of steps. It is recommended to use `midpoint` solvers. + lower_order_final (`bool`, defaults to `True`): + Whether to use lower-order solvers in the final steps. Only valid for < 15 inference steps. This can + stabilize the sampling of DPMSolver for steps < 15, especially for steps <= 10. + euler_at_final (`bool`, defaults to `False`): + Whether to use Euler's method in the final step. It is a trade-off between numerical stability and detail + richness. This can stabilize the sampling of the SDE variant of DPMSolver for small number of inference + steps, but sometimes may result in blurring. + final_sigmas_type (`str`, defaults to `"zero"`): + The final `sigma` value for the noise schedule during the sampling process. If `"sigma_min"`, the final + sigma is the same as the last sigma in the training schedule. If `zero`, the final sigma is set to 0. + """ + + _compatibles = [] + order = 1 + + @register_to_config + def __init__( + self, + sigma_min: float = 0.3, + sigma_max: float = 500, + sigma_data: float = 1.0, + sigma_schedule: str = "exponential", + num_train_timesteps: int = 1000, + solver_order: int = 2, + prediction_type: str = "v_prediction", + rho: float = 7.0, + solver_type: str = "midpoint", + lower_order_final: bool = True, + euler_at_final: bool = False, + final_sigmas_type: Optional[str] = "zero", # "zero", "sigma_min" + ): + if solver_type not in ["midpoint", "heun"]: + if solver_type in ["logrho", "bh1", "bh2"]: + self.register_to_config(solver_type="midpoint") + else: + raise NotImplementedError(f"{solver_type} is not implemented for {self.__class__}") + + ramp = torch.linspace(0, 1, num_train_timesteps) + if sigma_schedule == "karras": + sigmas = self._compute_karras_sigmas(ramp) + elif sigma_schedule == "exponential": + sigmas = self._compute_exponential_sigmas(ramp) + + self.timesteps = self.precondition_noise(sigmas) + + self.sigmas = torch.cat([sigmas, torch.zeros(1, device=sigmas.device)]) + + # setable values + self.num_inference_steps = None + self.model_outputs = [None] * solver_order + self.lower_order_nums = 0 + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def init_noise_sigma(self): + # standard deviation of the initial noise distribution + return (self.config.sigma_max**2 + 1) ** 0.5 + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler.precondition_inputs + def precondition_inputs(self, sample, sigma): + c_in = self._get_conditioning_c_in(sigma) + scaled_sample = sample * c_in + return scaled_sample + + def precondition_noise(self, sigma): + if not isinstance(sigma, torch.Tensor): + sigma = torch.tensor([sigma]) + + return sigma.atan() / math.pi * 2 + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler.precondition_outputs + def precondition_outputs(self, sample, model_output, sigma): + sigma_data = self.config.sigma_data + c_skip = sigma_data**2 / (sigma**2 + sigma_data**2) + + if self.config.prediction_type == "epsilon": + c_out = sigma * sigma_data / (sigma**2 + sigma_data**2) ** 0.5 + elif self.config.prediction_type == "v_prediction": + c_out = -sigma * sigma_data / (sigma**2 + sigma_data**2) ** 0.5 + else: + raise ValueError(f"Prediction type {self.config.prediction_type} is not supported.") + + denoised = c_skip * sample + c_out * model_output + + return denoised + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler.scale_model_input + def scale_model_input(self, sample: torch.Tensor, timestep: Union[float, torch.Tensor]) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. Scales the denoising model input by `(sigma**2 + 1) ** 0.5` to match the Euler algorithm. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sample = self.precondition_inputs(sample, sigma) + + self.is_scale_input_called = True + return sample + + def set_timesteps(self, num_inference_steps: int = None, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + + self.num_inference_steps = num_inference_steps + + ramp = torch.linspace(0, 1, self.num_inference_steps) + if self.config.sigma_schedule == "karras": + sigmas = self._compute_karras_sigmas(ramp) + elif self.config.sigma_schedule == "exponential": + sigmas = self._compute_exponential_sigmas(ramp) + + sigmas = sigmas.to(dtype=torch.float32, device=device) + self.timesteps = self.precondition_noise(sigmas) + + if self.config.final_sigmas_type == "sigma_min": + sigma_last = self.config.sigma_min + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + + self.sigmas = torch.cat([sigmas, torch.tensor([sigma_last], dtype=torch.float32, device=device)]) + + self.model_outputs = [ + None, + ] * self.config.solver_order + self.lower_order_nums = 0 + + # add an index counter for schedulers that allow duplicated timesteps + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # if a noise sampler is used, reinitialise it + self.noise_sampler = None + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler._compute_karras_sigmas + def _compute_karras_sigmas(self, ramp, sigma_min=None, sigma_max=None) -> torch.Tensor: + """Constructs the noise schedule of Karras et al. (2022).""" + sigma_min = sigma_min or self.config.sigma_min + sigma_max = sigma_max or self.config.sigma_max + + rho = self.config.rho + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler._compute_exponential_sigmas + def _compute_exponential_sigmas(self, ramp, sigma_min=None, sigma_max=None) -> torch.Tensor: + """Implementation closely follows k-diffusion. + + https://github.com/crowsonkb/k-diffusion/blob/6ab5146d4a5ef63901326489f31f1d8e7dd36b48/k_diffusion/sampling.py#L26 + """ + sigma_min = sigma_min or self.config.sigma_min + sigma_max = sigma_max or self.config.sigma_max + sigmas = torch.linspace(math.log(sigma_min), math.log(sigma_max), len(ramp)).exp().flip(0) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + def _sigma_to_alpha_sigma_t(self, sigma): + alpha_t = torch.tensor(1) # Inputs are pre-scaled before going into unet, so alpha_t = 1 + sigma_t = sigma + + return alpha_t, sigma_t + + def convert_model_output( + self, + model_output: torch.Tensor, + sample: torch.Tensor = None, + ) -> torch.Tensor: + """ + Convert the model output to the corresponding type the DPMSolver/DPMSolver++ algorithm needs. DPM-Solver is + designed to discretize an integral of the noise prediction model, and DPM-Solver++ is designed to discretize an + integral of the data prediction model. + + > [!TIP] > The algorithm and model type are decoupled. You can use either DPMSolver or DPMSolver++ for both + noise > prediction and data prediction models. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The converted model output. + """ + sigma = self.sigmas[self.step_index] + x0_pred = self.precondition_outputs(sample, model_output, sigma) + + return x0_pred + + def dpm_solver_first_order_update( + self, + model_output: torch.Tensor, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + """ + One step for the first-order DPMSolver (equivalent to DDIM). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + sigma_t, sigma_s = self.sigmas[self.step_index + 1], self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s, sigma_s = self._sigma_to_alpha_sigma_t(sigma_s) + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s = torch.log(alpha_s) - torch.log(sigma_s) + + h = lambda_t - lambda_s + assert noise is not None + x_t = ( + (sigma_t / sigma_s * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * model_output + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + + return x_t + + def multistep_dpm_solver_second_order_update( + self, + model_output_list: List[torch.Tensor], + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + """ + One step for the second-order multistep DPMSolver. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + sigma_t, sigma_s0, sigma_s1 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + + m0, m1 = model_output_list[-1], model_output_list[-2] + + h, h_0 = lambda_t - lambda_s0, lambda_s0 - lambda_s1 + r0 = h_0 / h + D0, D1 = m0, (1.0 / r0) * (m0 - m1) + + # sde-dpmsolver++ + assert noise is not None + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + 0.5 * (alpha_t * (1 - torch.exp(-2.0 * h))) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + + return x_t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.index_for_timestep + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + index_candidates = (schedule_timesteps == timestep).nonzero() + + if len(index_candidates) == 0: + step_index = len(self.timesteps) - 1 + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + + return step_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._init_step_index + def _init_step_index(self, timestep): + """ + Initialize the step_index counter for the scheduler. + """ + + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[int, torch.Tensor], + sample: torch.Tensor, + generator=None, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the multistep DPMSolver. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # Improve numerical stability for small number of steps + lower_order_final = (self.step_index == len(self.timesteps) - 1) and ( + self.config.euler_at_final + or (self.config.lower_order_final and len(self.timesteps) < 15) + or self.config.final_sigmas_type == "zero" + ) + lower_order_second = ( + (self.step_index == len(self.timesteps) - 2) and self.config.lower_order_final and len(self.timesteps) < 15 + ) + + model_output = self.convert_model_output(model_output, sample=sample) + for i in range(self.config.solver_order - 1): + self.model_outputs[i] = self.model_outputs[i + 1] + self.model_outputs[-1] = model_output + + if self.noise_sampler is None: + seed = None + if generator is not None: + seed = ( + [g.initial_seed() for g in generator] if isinstance(generator, list) else generator.initial_seed() + ) + self.noise_sampler = BrownianTreeNoiseSampler( + model_output, sigma_min=self.config.sigma_min, sigma_max=self.config.sigma_max, seed=seed + ) + noise = self.noise_sampler(self.sigmas[self.step_index], self.sigmas[self.step_index + 1]).to( + model_output.device + ) + + if self.config.solver_order == 1 or self.lower_order_nums < 1 or lower_order_final: + prev_sample = self.dpm_solver_first_order_update(model_output, sample=sample, noise=noise) + elif self.config.solver_order == 2 or self.lower_order_nums < 2 or lower_order_second: + prev_sample = self.multistep_dpm_solver_second_order_update(self.model_outputs, sample=sample, noise=noise) + + if self.lower_order_nums < self.config.solver_order: + self.lower_order_nums += 1 + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler._get_conditioning_c_in + def _get_conditioning_c_in(self, sigma): + c_in = 1 / ((sigma**2 + self.config.sigma_data**2) ** 0.5) + return c_in + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim.py new file mode 100644 index 0000000000000000000000000000000000000000..d7fe29a72ac9bd391d812201dffd984c849a592f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim.py @@ -0,0 +1,588 @@ +# Copyright 2025 Stanford University Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->DDIM +class DDIMSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +def rescale_zero_terminal_snr(betas: torch.Tensor) -> torch.Tensor: + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class DDIMScheduler(SchedulerMixin, ConfigMixin): + """ + `DDIMScheduler` extends the denoising procedure introduced in denoising diffusion probabilistic models (DDPMs) with + non-Markovian guidance. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`Literal["linear", "scaled_linear", "squaredcos_cap_v2"]`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Must be one + of `"linear"`, `"scaled_linear"`, or `"squaredcos_cap_v2"`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample for numerical stability. + clip_sample_range (`float`, defaults to 1.0): + The maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + set_alpha_to_one (`bool`, defaults to `True`): + Each diffusion step uses the alphas product value at that step and at the previous one. For the final step + there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the alpha value at step 0. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + prediction_type (`Literal["epsilon", "sample", "v_prediction"]`, defaults to `"epsilon"`): + Prediction type of the scheduler function. Must be one of `"epsilon"` (predicts the noise of the diffusion + process), `"sample"` (directly predicts the noisy sample), or `"v_prediction"` (see section 2.4 of [Imagen + Video](https://huggingface.co/papers/2210.02303) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True`. + timestep_spacing (`Literal["leading", "trailing", "linspace"]`, defaults to `"leading"`): + The way the timesteps should be scaled. Must be one of `"leading"`, `"trailing"`, or `"linspace"`. Refer to + Table 2 of the [Common Diffusion Noise Schedules and Sample Steps are + Flawed](https://huggingface.co/papers/2305.08891) for more information. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: Literal["linear", "scaled_linear", "squaredcos_cap_v2"] = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + clip_sample: bool = True, + set_alpha_to_one: bool = True, + steps_offset: int = 0, + prediction_type: Literal["epsilon", "sample", "v_prediction"] = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + clip_sample_range: float = 1.0, + sample_max_value: float = 1.0, + timestep_spacing: Literal["leading", "trailing", "linspace"] = "leading", + rescale_betas_zero_snr: bool = False, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # At every step in ddim, we are looking into the previous alphas_cumprod + # For the final step, there is no previous alphas_cumprod because we are already at 0 + # `set_alpha_to_one` decides whether we set this parameter simply to one or + # whether we use the final alpha of the "non-previous" one. + self.final_alpha_cumprod = torch.tensor(1.0) if set_alpha_to_one else self.alphas_cumprod[0] + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy().astype(np.int64)) + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def _get_variance(self, timestep: int, prev_timestep: int) -> torch.Tensor: + """ + Computes the variance of the noise added at a given diffusion step. + + For a given `timestep` and its previous step, this method calculates the variance as defined in DDIM/DDPM + literature: + var_t = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + where alpha_prod and beta_prod are cumulative products of alphas and betas, respectively. + + Args: + timestep (`int`): + The current timestep in the diffusion process. + prev_timestep (`int`): + The previous timestep in the diffusion process. If negative, uses `final_alpha_cumprod`. + + Returns: + `torch.Tensor`: + The variance for the current timestep. + """ + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + variance = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + + return variance + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None) -> None: + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`Union[str, torch.device]`, *optional*): + The device to use for the timesteps. + + Raises: + ValueError: If `num_inference_steps` is larger than `self.config.num_train_timesteps`. + """ + + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + self.num_inference_steps = num_inference_steps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps) + .round()[::-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.round(np.arange(self.config.num_train_timesteps, 0, -step_ratio)).astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'leading' or 'trailing'." + ) + + self.timesteps = torch.from_numpy(timesteps).to(device) + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + eta: float = 0.0, + use_clipped_model_output: bool = False, + generator: Optional[torch.Generator] = None, + variance_noise: Optional[torch.Tensor] = None, + return_dict: bool = True, + ) -> Union[DDIMSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + eta (`float`, *optional*, defaults to 0.0): + The weight of noise for added noise in diffusion step. A value of 0 corresponds to DDIM (deterministic) + and 1 corresponds to DDPM (fully stochastic). + use_clipped_model_output (`bool`, *optional*, defaults to `False`): + If `True`, computes "corrected" `model_output` from the clipped predicted original sample. Necessary + because predicted original sample is clipped to [-1, 1] when `self.config.clip_sample` is `True`. If no + clipping has happened, "corrected" `model_output` would coincide with the one provided as input and + `use_clipped_model_output` has no effect. + generator (`torch.Generator`, *optional*): + A random number generator for reproducible sampling. + variance_noise (`torch.Tensor`, *optional*): + Alternative to generating noise with `generator` by directly providing the noise for the variance + itself. Useful for methods such as [`CycleDiffusion`]. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + # See formulas (12) and (16) of DDIM paper https://huggingface.co/papers/2010.02502 + # Ideally, read DDIM paper in-detail understanding + + # Notation ( -> + # - pred_noise_t -> e_theta(x_t, t) + # - pred_original_sample -> f_theta(x_t, t) or x_0 + # - std_dev_t -> sigma_t + # - eta -> η + # - pred_sample_direction -> "direction pointing to x_t" + # - pred_prev_sample -> "x_t-1" + + # 1. get previous step value (=t-1) + prev_timestep = timestep - self.config.num_train_timesteps // self.num_inference_steps + + # 2. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + + beta_prod_t = 1 - alpha_prod_t + + # 3. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (12) from https://huggingface.co/papers/2010.02502 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + pred_epsilon = model_output + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + pred_epsilon = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction`" + ) + + # 4. Clip or threshold "predicted x_0" + if self.config.thresholding: + pred_original_sample = self._threshold_sample(pred_original_sample) + elif self.config.clip_sample: + pred_original_sample = pred_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 5. compute variance: "sigma_t(η)" -> see formula (16) + # σ_t = sqrt((1 − α_t−1)/(1 − α_t)) * sqrt(1 − α_t/α_t−1) + variance = self._get_variance(timestep, prev_timestep) + std_dev_t = eta * variance ** (0.5) + + if use_clipped_model_output: + # the pred_epsilon is always re-derived from the clipped x_0 in Glide + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + + # 6. compute "direction pointing to x_t" of formula (12) from https://huggingface.co/papers/2010.02502 + pred_sample_direction = (1 - alpha_prod_t_prev - std_dev_t**2) ** (0.5) * pred_epsilon + + # 7. compute x_t without "random noise" of formula (12) from https://huggingface.co/papers/2010.02502 + prev_sample = alpha_prod_t_prev ** (0.5) * pred_original_sample + pred_sample_direction + + if eta > 0: + if variance_noise is not None and generator is not None: + raise ValueError( + "Cannot pass both generator and variance_noise. Please make sure that either `generator` or" + " `variance_noise` stays `None`." + ) + + if variance_noise is None: + variance_noise = randn_tensor( + model_output.shape, generator=generator, device=model_output.device, dtype=model_output.dtype + ) + variance = std_dev_t * variance_noise + + prev_sample = prev_sample + variance + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return DDIMSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.get_velocity + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.IntTensor) -> torch.Tensor: + """ + Compute the velocity prediction from the sample and noise according to the velocity formula. + + Args: + sample (`torch.Tensor`): + The input sample. + noise (`torch.Tensor`): + The noise tensor. + timesteps (`torch.IntTensor`): + The timesteps for velocity computation. + + Returns: + `torch.Tensor`: + The computed velocity. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as sample + self.alphas_cumprod = self.alphas_cumprod.to(device=sample.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=sample.dtype) + timesteps = timesteps.to(sample.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self) -> int: + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_cogvideox.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_cogvideox.py new file mode 100644 index 0000000000000000000000000000000000000000..acb5a5f3e5227cb70058dda56d4e51d8352ee10b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_cogvideox.py @@ -0,0 +1,484 @@ +# Copyright 2025 The CogVideoX team, Tsinghua University & ZhipuAI and The HuggingFace Team. +# All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->DDIM +class DDIMSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +def rescale_zero_terminal_snr(alphas_cumprod): + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + + Args: + betas (`torch.Tensor`): + the betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: rescaled betas with zero terminal SNR + """ + + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + + return alphas_bar + + +class CogVideoXDDIMScheduler(SchedulerMixin, ConfigMixin): + """ + `DDIMScheduler` extends the denoising procedure introduced in denoising diffusion probabilistic models (DDPMs) with + non-Markovian guidance. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample for numerical stability. + clip_sample_range (`float`, defaults to 1.0): + The maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + set_alpha_to_one (`bool`, defaults to `True`): + Each diffusion step uses the alphas product value at that step and at the previous one. For the final step + there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the alpha value at step 0. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True`. + timestep_spacing (`str`, defaults to `"leading"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.00085, + beta_end: float = 0.0120, + beta_schedule: str = "scaled_linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + clip_sample: bool = True, + set_alpha_to_one: bool = True, + steps_offset: int = 0, + prediction_type: str = "epsilon", + clip_sample_range: float = 1.0, + sample_max_value: float = 1.0, + timestep_spacing: str = "leading", + rescale_betas_zero_snr: bool = False, + snr_shift_scale: float = 3.0, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float64) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # Modify: SNR shift following SD3 + self.alphas_cumprod = self.alphas_cumprod / (snr_shift_scale + (1 - snr_shift_scale) * self.alphas_cumprod) + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.alphas_cumprod = rescale_zero_terminal_snr(self.alphas_cumprod) + + # At every step in ddim, we are looking into the previous alphas_cumprod + # For the final step, there is no previous alphas_cumprod because we are already at 0 + # `set_alpha_to_one` decides whether we set this parameter simply to one or + # whether we use the final alpha of the "non-previous" one. + self.final_alpha_cumprod = torch.tensor(1.0) if set_alpha_to_one else self.alphas_cumprod[0] + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy().astype(np.int64)) + + def _get_variance(self, timestep, prev_timestep): + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + variance = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + + return variance + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + """ + + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + self.num_inference_steps = num_inference_steps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps) + .round()[::-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.round(np.arange(self.config.num_train_timesteps, 0, -step_ratio)).astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'leading' or 'trailing'." + ) + + self.timesteps = torch.from_numpy(timesteps).to(device) + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + eta: float = 0.0, + use_clipped_model_output: bool = False, + generator=None, + variance_noise: Optional[torch.Tensor] = None, + return_dict: bool = True, + ) -> Union[DDIMSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + eta (`float`): + The weight of noise for added noise in diffusion step. + use_clipped_model_output (`bool`, defaults to `False`): + If `True`, computes "corrected" `model_output` from the clipped predicted original sample. Necessary + because predicted original sample is clipped to [-1, 1] when `self.config.clip_sample` is `True`. If no + clipping has happened, "corrected" `model_output` would coincide with the one provided as input and + `use_clipped_model_output` has no effect. + generator (`torch.Generator`, *optional*): + A random number generator. + variance_noise (`torch.Tensor`): + Alternative to generating noise with `generator` by directly providing the noise for the variance + itself. Useful for methods such as [`CycleDiffusion`]. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + # See formulas (12) and (16) of DDIM paper https://huggingface.co/papers/2010.02502 + # Ideally, read DDIM paper in-detail understanding + + # Notation ( -> + # - pred_noise_t -> e_theta(x_t, t) + # - pred_original_sample -> f_theta(x_t, t) or x_0 + # - std_dev_t -> sigma_t + # - eta -> η + # - pred_sample_direction -> "direction pointing to x_t" + # - pred_prev_sample -> "x_t-1" + + # 1. get previous step value (=t-1) + prev_timestep = timestep - self.config.num_train_timesteps // self.num_inference_steps + + # 2. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + + beta_prod_t = 1 - alpha_prod_t + + # 3. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (12) from https://huggingface.co/papers/2010.02502 + # To make style tests pass, commented out `pred_epsilon` as it is an unused variable + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + # pred_epsilon = model_output + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + # pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + # pred_epsilon = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction`" + ) + + a_t = ((1 - alpha_prod_t_prev) / (1 - alpha_prod_t)) ** 0.5 + b_t = alpha_prod_t_prev**0.5 - alpha_prod_t**0.5 * a_t + + prev_sample = a_t * sample + b_t * pred_original_sample + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return DDIMSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.get_velocity + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.IntTensor) -> torch.Tensor: + """ + Compute the velocity prediction from the sample and noise according to the velocity formula. + + Args: + sample (`torch.Tensor`): + The input sample. + noise (`torch.Tensor`): + The noise tensor. + timesteps (`torch.IntTensor`): + The timesteps for velocity computation. + + Returns: + `torch.Tensor`: + The computed velocity. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as sample + self.alphas_cumprod = self.alphas_cumprod.to(device=sample.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=sample.dtype) + timesteps = timesteps.to(sample.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..802d8f79779de52c39ffd1210571518c74e37b02 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_flax.py @@ -0,0 +1,314 @@ +# Copyright 2025 Stanford University Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import flax +import jax.numpy as jnp + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils_flax import ( + CommonSchedulerState, + FlaxKarrasDiffusionSchedulers, + FlaxSchedulerMixin, + FlaxSchedulerOutput, + add_noise_common, + get_velocity_common, +) + + +@flax.struct.dataclass +class DDIMSchedulerState: + common: CommonSchedulerState + final_alpha_cumprod: jnp.ndarray + + # setable values + init_noise_sigma: jnp.ndarray + timesteps: jnp.ndarray + num_inference_steps: Optional[int] = None + + @classmethod + def create( + cls, + common: CommonSchedulerState, + final_alpha_cumprod: jnp.ndarray, + init_noise_sigma: jnp.ndarray, + timesteps: jnp.ndarray, + ): + return cls( + common=common, + final_alpha_cumprod=final_alpha_cumprod, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + ) + + +@dataclass +class FlaxDDIMSchedulerOutput(FlaxSchedulerOutput): + state: DDIMSchedulerState + + +class FlaxDDIMScheduler(FlaxSchedulerMixin, ConfigMixin): + """ + Denoising diffusion implicit models is a scheduler that extends the denoising procedure introduced in denoising + diffusion probabilistic models (DDPMs) with non-Markovian guidance. + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + For more details, see the original paper: https://huggingface.co/papers/2010.02502 + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + beta_start (`float`): the starting `beta` value of inference. + beta_end (`float`): the final `beta` value. + beta_schedule (`str`): + the beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`jnp.ndarray`, optional): + option to pass an array of betas directly to the constructor to bypass `beta_start`, `beta_end` etc. + clip_sample (`bool`, default `True`): + option to clip predicted sample between for numerical stability. The clip range is determined by + `clip_sample_range`. + clip_sample_range (`float`, default `1.0`): + the maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + set_alpha_to_one (`bool`, default `True`): + each diffusion step uses the value of alphas product at that step and at the previous one. For the final + step there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the value of alpha at step 0. + steps_offset (`int`, default `0`): + An offset added to the inference steps, as required by some model families. + prediction_type (`str`, default `epsilon`): + indicates whether the model predicts the noise (epsilon), or the samples. One of `epsilon`, `sample`. + `v-prediction` is not supported for this scheduler. + dtype (`jnp.dtype`, *optional*, defaults to `jnp.float32`): + the `dtype` used for params and computation. + """ + + _compatibles = [e.name for e in FlaxKarrasDiffusionSchedulers] + + dtype: jnp.dtype + + @property + def has_state(self): + return True + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[jnp.ndarray] = None, + clip_sample: bool = True, + clip_sample_range: float = 1.0, + set_alpha_to_one: bool = True, + steps_offset: int = 0, + prediction_type: str = "epsilon", + dtype: jnp.dtype = jnp.float32, + ): + self.dtype = dtype + + def create_state(self, common: Optional[CommonSchedulerState] = None) -> DDIMSchedulerState: + if common is None: + common = CommonSchedulerState.create(self) + + # At every step in ddim, we are looking into the previous alphas_cumprod + # For the final step, there is no previous alphas_cumprod because we are already at 0 + # `set_alpha_to_one` decides whether we set this parameter simply to one or + # whether we use the final alpha of the "non-previous" one. + final_alpha_cumprod = ( + jnp.array(1.0, dtype=self.dtype) if self.config.set_alpha_to_one else common.alphas_cumprod[0] + ) + + # standard deviation of the initial noise distribution + init_noise_sigma = jnp.array(1.0, dtype=self.dtype) + + timesteps = jnp.arange(0, self.config.num_train_timesteps).round()[::-1] + + return DDIMSchedulerState.create( + common=common, + final_alpha_cumprod=final_alpha_cumprod, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + ) + + def scale_model_input( + self, state: DDIMSchedulerState, sample: jnp.ndarray, timestep: Optional[int] = None + ) -> jnp.ndarray: + """ + Args: + state (`PNDMSchedulerState`): the `FlaxPNDMScheduler` state data class instance. + sample (`jnp.ndarray`): input sample + timestep (`int`, optional): current timestep + + Returns: + `jnp.ndarray`: scaled input sample + """ + return sample + + def set_timesteps( + self, state: DDIMSchedulerState, num_inference_steps: int, shape: Tuple = () + ) -> DDIMSchedulerState: + """ + Sets the discrete timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + state (`DDIMSchedulerState`): + the `FlaxDDIMScheduler` state data class instance. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + """ + step_ratio = self.config.num_train_timesteps // num_inference_steps + # creates integer timesteps by multiplying by ratio + # rounding to avoid issues when num_inference_step is power of 3 + timesteps = (jnp.arange(0, num_inference_steps) * step_ratio).round()[::-1] + self.config.steps_offset + + return state.replace( + num_inference_steps=num_inference_steps, + timesteps=timesteps, + ) + + def _get_variance(self, state: DDIMSchedulerState, timestep, prev_timestep): + alpha_prod_t = state.common.alphas_cumprod[timestep] + alpha_prod_t_prev = jnp.where( + prev_timestep >= 0, state.common.alphas_cumprod[prev_timestep], state.final_alpha_cumprod + ) + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + variance = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + + return variance + + def step( + self, + state: DDIMSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + eta: float = 0.0, + return_dict: bool = True, + ) -> Union[FlaxDDIMSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + state (`DDIMSchedulerState`): the `FlaxDDIMScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + return_dict (`bool`): option for returning tuple rather than FlaxDDIMSchedulerOutput class + + Returns: + [`FlaxDDIMSchedulerOutput`] or `tuple`: [`FlaxDDIMSchedulerOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + if state.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + # See formulas (12) and (16) of DDIM paper https://huggingface.co/papers/2010.02502 + # Ideally, read DDIM paper in-detail understanding + + # Notation ( -> + # - pred_noise_t -> e_theta(x_t, t) + # - pred_original_sample -> f_theta(x_t, t) or x_0 + # - std_dev_t -> sigma_t + # - eta -> η + # - pred_sample_direction -> "direction pointing to x_t" + # - pred_prev_sample -> "x_t-1" + + # 1. get previous step value (=t-1) + prev_timestep = timestep - self.config.num_train_timesteps // state.num_inference_steps + + alphas_cumprod = state.common.alphas_cumprod + final_alpha_cumprod = state.final_alpha_cumprod + + # 2. compute alphas, betas + alpha_prod_t = alphas_cumprod[timestep] + alpha_prod_t_prev = jnp.where(prev_timestep >= 0, alphas_cumprod[prev_timestep], final_alpha_cumprod) + + beta_prod_t = 1 - alpha_prod_t + + # 3. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (12) from https://huggingface.co/papers/2010.02502 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + pred_epsilon = model_output + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + pred_epsilon = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction`" + ) + + # 4. Clip or threshold "predicted x_0" + if self.config.clip_sample: + pred_original_sample = pred_original_sample.clip( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 4. compute variance: "sigma_t(η)" -> see formula (16) + # σ_t = sqrt((1 − α_t−1)/(1 − α_t)) * sqrt(1 − α_t/α_t−1) + variance = self._get_variance(state, timestep, prev_timestep) + std_dev_t = eta * variance ** (0.5) + + # 5. compute "direction pointing to x_t" of formula (12) from https://huggingface.co/papers/2010.02502 + pred_sample_direction = (1 - alpha_prod_t_prev - std_dev_t**2) ** (0.5) * pred_epsilon + + # 6. compute x_t without "random noise" of formula (12) from https://huggingface.co/papers/2010.02502 + prev_sample = alpha_prod_t_prev ** (0.5) * pred_original_sample + pred_sample_direction + + if not return_dict: + return (prev_sample, state) + + return FlaxDDIMSchedulerOutput(prev_sample=prev_sample, state=state) + + def add_noise( + self, + state: DDIMSchedulerState, + original_samples: jnp.ndarray, + noise: jnp.ndarray, + timesteps: jnp.ndarray, + ) -> jnp.ndarray: + return add_noise_common(state.common, original_samples, noise, timesteps) + + def get_velocity( + self, + state: DDIMSchedulerState, + sample: jnp.ndarray, + noise: jnp.ndarray, + timesteps: jnp.ndarray, + ) -> jnp.ndarray: + return get_velocity_common(state.common, sample, noise, timesteps) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_inverse.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_inverse.py new file mode 100644 index 0000000000000000000000000000000000000000..a7717940e2a1b6065c81feabfda1d82ba55061b3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_inverse.py @@ -0,0 +1,375 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from diffusers.configuration_utils import ConfigMixin, register_to_config +from diffusers.schedulers.scheduling_utils import SchedulerMixin +from diffusers.utils import BaseOutput, deprecate + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->DDIM +class DDIMSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas): + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class DDIMInverseScheduler(SchedulerMixin, ConfigMixin): + """ + `DDIMInverseScheduler` is the reverse scheduler of [`DDIMScheduler`]. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample for numerical stability. + clip_sample_range (`float`, defaults to 1.0): + The maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + set_alpha_to_one (`bool`, defaults to `True`): + Each diffusion step uses the alphas product value at that step and at the previous one. For the final step + there is no previous alpha. When this option is `True` the previous alpha product is fixed to 0, otherwise + it uses the alpha value at step `num_train_timesteps - 1`. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + timestep_spacing (`str`, defaults to `"leading"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + order = 1 + ignore_for_config = ["kwargs"] + _deprecated_kwargs = ["set_alpha_to_zero"] + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + clip_sample: bool = True, + set_alpha_to_one: bool = True, + steps_offset: int = 0, + prediction_type: str = "epsilon", + clip_sample_range: float = 1.0, + timestep_spacing: str = "leading", + rescale_betas_zero_snr: bool = False, + **kwargs, + ): + if kwargs.get("set_alpha_to_zero", None) is not None: + deprecation_message = ( + "The `set_alpha_to_zero` argument is deprecated. Please use `set_alpha_to_one` instead." + ) + deprecate("set_alpha_to_zero", "1.0.0", deprecation_message, standard_warn=False) + set_alpha_to_one = kwargs["set_alpha_to_zero"] + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # At every step in inverted ddim, we are looking into the next alphas_cumprod + # For the initial step, there is no current alphas_cumprod, and the index is out of bounds + # `set_alpha_to_one` decides whether we set this parameter simply to one + # in this case, self.step() just output the predicted noise + # or whether we use the initial alpha used in training the diffusion model. + self.initial_alpha_cumprod = torch.tensor(1.0) if set_alpha_to_one else self.alphas_cumprod[0] + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps).copy().astype(np.int64)) + + # Copied from diffusers.schedulers.scheduling_ddim.DDIMScheduler.scale_model_input + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + """ + + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + self.num_inference_steps = num_inference_steps + + # "leading" and "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round().copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.round(np.arange(self.config.num_train_timesteps, 0, -step_ratio)[::-1]).astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'leading' or 'trailing'." + ) + + self.timesteps = torch.from_numpy(timesteps).to(device) + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + return_dict: bool = True, + ) -> Union[DDIMSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + eta (`float`): + The weight of noise for added noise in diffusion step. + use_clipped_model_output (`bool`, defaults to `False`): + If `True`, computes "corrected" `model_output` from the clipped predicted original sample. Necessary + because predicted original sample is clipped to [-1, 1] when `self.config.clip_sample` is `True`. If no + clipping has happened, "corrected" `model_output` would coincide with the one provided as input and + `use_clipped_model_output` has no effect. + variance_noise (`torch.Tensor`): + Alternative to generating noise with `generator` by directly providing the noise for the variance + itself. Useful for methods such as [`CycleDiffusion`]. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_ddim_inverse.DDIMInverseSchedulerOutput`] or + `tuple`. + + Returns: + [`~schedulers.scheduling_ddim_inverse.DDIMInverseSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_ddim_inverse.DDIMInverseSchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor. + + """ + # 1. get previous step value (=t+1) + prev_timestep = timestep + timestep = min( + timestep - self.config.num_train_timesteps // self.num_inference_steps, self.config.num_train_timesteps - 1 + ) + + # 2. compute alphas, betas + # change original implementation to exactly match noise levels for analogous forward process + alpha_prod_t = self.alphas_cumprod[timestep] if timestep >= 0 else self.initial_alpha_cumprod + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] + + beta_prod_t = 1 - alpha_prod_t + + # 3. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (12) from https://huggingface.co/papers/2010.02502 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + pred_epsilon = model_output + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + pred_epsilon = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction`" + ) + + # 4. Clip or threshold "predicted x_0" + if self.config.clip_sample: + pred_original_sample = pred_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 5. compute "direction pointing to x_t" of formula (12) from https://huggingface.co/papers/2010.02502 + pred_sample_direction = (1 - alpha_prod_t_prev) ** (0.5) * pred_epsilon + + # 6. compute x_t without "random noise" of formula (12) from https://huggingface.co/papers/2010.02502 + prev_sample = alpha_prod_t_prev ** (0.5) * pred_original_sample + pred_sample_direction + + if not return_dict: + return (prev_sample, pred_original_sample) + return DDIMSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_parallel.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_parallel.py new file mode 100644 index 0000000000000000000000000000000000000000..d957ade901b3c9a89694ef2a06a4adde7c9f28f5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddim_parallel.py @@ -0,0 +1,693 @@ +# Copyright 2025 ParaDiGMS authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput +class DDIMParallelSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas): + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class DDIMParallelScheduler(SchedulerMixin, ConfigMixin): + """ + Denoising diffusion implicit models is a scheduler that extends the denoising procedure introduced in denoising + diffusion probabilistic models (DDPMs) with non-Markovian guidance. + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + For more details, see the original paper: https://huggingface.co/papers/2010.02502 + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + beta_start (`float`): the starting `beta` value of inference. + beta_end (`float`): the final `beta` value. + beta_schedule (`str`): + the beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, optional): + option to pass an array of betas directly to the constructor to bypass `beta_start`, `beta_end` etc. + clip_sample (`bool`, default `True`): + option to clip predicted sample for numerical stability. + clip_sample_range (`float`, default `1.0`): + the maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + set_alpha_to_one (`bool`, default `True`): + each diffusion step uses the value of alphas product at that step and at the previous one. For the final + step there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the value of alpha at step 0. + steps_offset (`int`, default `0`): + An offset added to the inference steps, as required by some model families. + prediction_type (`str`, default `epsilon`, optional): + prediction type of the scheduler function, one of `epsilon` (predicting the noise of the diffusion + process), `sample` (directly predicting the noisy sample`) or `v_prediction` (see section 2.4 + https://imagen.research.google/video/paper.pdf) + thresholding (`bool`, default `False`): + whether to use the "dynamic thresholding" method (introduced by Imagen, + https://huggingface.co/papers/2205.11487). Note that the thresholding method is unsuitable for latent-space + diffusion models (such as stable-diffusion). + dynamic_thresholding_ratio (`float`, default `0.995`): + the ratio for the dynamic thresholding method. Default is `0.995`, the same as Imagen + (https://huggingface.co/papers/2205.11487). Valid only when `thresholding=True`. + sample_max_value (`float`, default `1.0`): + the threshold value for dynamic thresholding. Valid only when `thresholding=True`. + timestep_spacing (`str`, default `"leading"`): + The way the timesteps should be scaled. Refer to Table 2. of [Common Diffusion Noise Schedules and Sample + Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + rescale_betas_zero_snr (`bool`, default `False`): + whether to rescale the betas to have zero terminal SNR (proposed by + https://huggingface.co/papers/2305.08891). This can enable the model to generate very bright and dark + samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + _is_ode_scheduler = True + + @register_to_config + # Copied from diffusers.schedulers.scheduling_ddim.DDIMScheduler.__init__ + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: Literal["linear", "scaled_linear", "squaredcos_cap_v2"] = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + clip_sample: bool = True, + set_alpha_to_one: bool = True, + steps_offset: int = 0, + prediction_type: Literal["epsilon", "sample", "v_prediction"] = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + clip_sample_range: float = 1.0, + sample_max_value: float = 1.0, + timestep_spacing: Literal["leading", "trailing", "linspace"] = "leading", + rescale_betas_zero_snr: bool = False, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # At every step in ddim, we are looking into the previous alphas_cumprod + # For the final step, there is no previous alphas_cumprod because we are already at 0 + # `set_alpha_to_one` decides whether we set this parameter simply to one or + # whether we use the final alpha of the "non-previous" one. + self.final_alpha_cumprod = torch.tensor(1.0) if set_alpha_to_one else self.alphas_cumprod[0] + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy().astype(np.int64)) + + # Copied from diffusers.schedulers.scheduling_ddim.DDIMScheduler.scale_model_input + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def _get_variance(self, timestep, prev_timestep=None): + if prev_timestep is None: + prev_timestep = timestep - self.config.num_train_timesteps // self.num_inference_steps + + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + variance = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + + return variance + + def _batch_get_variance(self, t, prev_t): + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[torch.clip(prev_t, min=0)] + alpha_prod_t_prev[prev_t < 0] = torch.tensor(1.0) + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + variance = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + + return variance + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + # Copied from diffusers.schedulers.scheduling_ddim.DDIMScheduler.set_timesteps + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`Union[str, torch.device]`, *optional*): + The device to use for the timesteps. + + Raises: + ValueError: If `num_inference_steps` is larger than `self.config.num_train_timesteps`. + """ + + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + self.num_inference_steps = num_inference_steps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps) + .round()[::-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.round(np.arange(self.config.num_train_timesteps, 0, -step_ratio)).astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'leading' or 'trailing'." + ) + + self.timesteps = torch.from_numpy(timesteps).to(device) + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + eta: float = 0.0, + use_clipped_model_output: bool = False, + generator=None, + variance_noise: Optional[torch.Tensor] = None, + return_dict: bool = True, + ) -> Union[DDIMParallelSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + current instance of sample being created by diffusion process. + eta (`float`): weight of noise for added noise in diffusion step. + use_clipped_model_output (`bool`): if `True`, compute "corrected" `model_output` from the clipped + predicted original sample. Necessary because predicted original sample is clipped to [-1, 1] when + `self.config.clip_sample` is `True`. If no clipping has happened, "corrected" `model_output` would + coincide with the one provided as input and `use_clipped_model_output` will have not effect. + generator: random number generator. + variance_noise (`torch.Tensor`): instead of generating noise for the variance using `generator`, we + can directly provide the noise for the variance itself. This is useful for methods such as + CycleDiffusion. (https://huggingface.co/papers/2210.05559) + return_dict (`bool`): option for returning tuple rather than DDIMParallelSchedulerOutput class + + Returns: + [`~schedulers.scheduling_utils.DDIMParallelSchedulerOutput`] or `tuple`: + [`~schedulers.scheduling_utils.DDIMParallelSchedulerOutput`] if `return_dict` is True, otherwise a `tuple`. + When returning a tuple, the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + # See formulas (12) and (16) of DDIM paper https://huggingface.co/papers/2010.02502 + # Ideally, read DDIM paper in-detail understanding + + # Notation ( -> + # - pred_noise_t -> e_theta(x_t, t) + # - pred_original_sample -> f_theta(x_t, t) or x_0 + # - std_dev_t -> sigma_t + # - eta -> η + # - pred_sample_direction -> "direction pointing to x_t" + # - pred_prev_sample -> "x_t-1" + + # 1. get previous step value (=t-1) + prev_timestep = timestep - self.config.num_train_timesteps // self.num_inference_steps + + # 2. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + + beta_prod_t = 1 - alpha_prod_t + + # 3. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (12) from https://huggingface.co/papers/2010.02502 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + pred_epsilon = model_output + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + pred_epsilon = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction`" + ) + + # 4. Clip or threshold "predicted x_0" + if self.config.thresholding: + pred_original_sample = self._threshold_sample(pred_original_sample) + elif self.config.clip_sample: + pred_original_sample = pred_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 5. compute variance: "sigma_t(η)" -> see formula (16) + # σ_t = sqrt((1 − α_t−1)/(1 − α_t)) * sqrt(1 − α_t/α_t−1) + variance = self._get_variance(timestep, prev_timestep) + std_dev_t = eta * variance ** (0.5) + + if use_clipped_model_output: + # the pred_epsilon is always re-derived from the clipped x_0 in Glide + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + + # 6. compute "direction pointing to x_t" of formula (12) from https://huggingface.co/papers/2010.02502 + pred_sample_direction = (1 - alpha_prod_t_prev - std_dev_t**2) ** (0.5) * pred_epsilon + + # 7. compute x_t without "random noise" of formula (12) from https://huggingface.co/papers/2010.02502 + prev_sample = alpha_prod_t_prev ** (0.5) * pred_original_sample + pred_sample_direction + + if eta > 0: + if variance_noise is not None and generator is not None: + raise ValueError( + "Cannot pass both generator and variance_noise. Please make sure that either `generator` or" + " `variance_noise` stays `None`." + ) + + if variance_noise is None: + variance_noise = randn_tensor( + model_output.shape, generator=generator, device=model_output.device, dtype=model_output.dtype + ) + variance = std_dev_t * variance_noise + + prev_sample = prev_sample + variance + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return DDIMParallelSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + def batch_step_no_noise( + self, + model_output: torch.Tensor, + timesteps: List[int], + sample: torch.Tensor, + eta: float = 0.0, + use_clipped_model_output: bool = False, + ) -> torch.Tensor: + """ + Batched version of the `step` function, to be able to reverse the SDE for multiple samples/timesteps at once. + Also, does not add any noise to the predicted sample, which is necessary for parallel sampling where the noise + is pre-sampled by the pipeline. + + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): direct output from learned diffusion model. + timesteps (`List[int]`): + current discrete timesteps in the diffusion chain. This is now a list of integers. + sample (`torch.Tensor`): + current instance of sample being created by diffusion process. + eta (`float`): weight of noise for added noise in diffusion step. + use_clipped_model_output (`bool`): if `True`, compute "corrected" `model_output` from the clipped + predicted original sample. Necessary because predicted original sample is clipped to [-1, 1] when + `self.config.clip_sample` is `True`. If no clipping has happened, "corrected" `model_output` would + coincide with the one provided as input and `use_clipped_model_output` will have not effect. + + Returns: + `torch.Tensor`: sample tensor at previous timestep. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + assert eta == 0.0 + + # See formulas (12) and (16) of DDIM paper https://huggingface.co/papers/2010.02502 + # Ideally, read DDIM paper in-detail understanding + + # Notation ( -> + # - pred_noise_t -> e_theta(x_t, t) + # - pred_original_sample -> f_theta(x_t, t) or x_0 + # - std_dev_t -> sigma_t + # - eta -> η + # - pred_sample_direction -> "direction pointing to x_t" + # - pred_prev_sample -> "x_t-1" + + # 1. get previous step value (=t-1) + t = timesteps + prev_t = t - self.config.num_train_timesteps // self.num_inference_steps + + t = t.view(-1, *([1] * (model_output.ndim - 1))) + prev_t = prev_t.view(-1, *([1] * (model_output.ndim - 1))) + + # 1. compute alphas, betas + self.alphas_cumprod = self.alphas_cumprod.to(model_output.device) + self.final_alpha_cumprod = self.final_alpha_cumprod.to(model_output.device) + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[torch.clip(prev_t, min=0)] + alpha_prod_t_prev[prev_t < 0] = torch.tensor(1.0) + + beta_prod_t = 1 - alpha_prod_t + + # 3. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (12) from https://huggingface.co/papers/2010.02502 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + pred_epsilon = model_output + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + pred_epsilon = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction`" + ) + + # 4. Clip or threshold "predicted x_0" + if self.config.thresholding: + pred_original_sample = self._threshold_sample(pred_original_sample) + elif self.config.clip_sample: + pred_original_sample = pred_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 5. compute variance: "sigma_t(η)" -> see formula (16) + # σ_t = sqrt((1 − α_t−1)/(1 − α_t)) * sqrt(1 − α_t/α_t−1) + variance = self._batch_get_variance(t, prev_t).to(model_output.device).view(*alpha_prod_t_prev.shape) + std_dev_t = eta * variance ** (0.5) + + if use_clipped_model_output: + # the pred_epsilon is always re-derived from the clipped x_0 in Glide + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + + # 6. compute "direction pointing to x_t" of formula (12) from https://huggingface.co/papers/2010.02502 + pred_sample_direction = (1 - alpha_prod_t_prev - std_dev_t**2) ** (0.5) * pred_epsilon + + # 7. compute x_t without "random noise" of formula (12) from https://huggingface.co/papers/2010.02502 + prev_sample = alpha_prod_t_prev ** (0.5) * pred_original_sample + pred_sample_direction + + return prev_sample + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.get_velocity + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.IntTensor) -> torch.Tensor: + """ + Compute the velocity prediction from the sample and noise according to the velocity formula. + + Args: + sample (`torch.Tensor`): + The input sample. + noise (`torch.Tensor`): + The noise tensor. + timesteps (`torch.IntTensor`): + The timesteps for velocity computation. + + Returns: + `torch.Tensor`: + The computed velocity. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as sample + self.alphas_cumprod = self.alphas_cumprod.to(device=sample.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=sample.dtype) + timesteps = timesteps.to(sample.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm.py new file mode 100644 index 0000000000000000000000000000000000000000..1d0ad49c58cdd1f2eff99063a6e080d6c3b75fd9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm.py @@ -0,0 +1,634 @@ +# Copyright 2025 UC Berkeley Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/ermongroup/ddim + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +@dataclass +class DDPMSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas: torch.Tensor) -> torch.Tensor: + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class DDPMScheduler(SchedulerMixin, ConfigMixin): + """ + `DDPMScheduler` explores the connections between denoising score matching and Langevin dynamics sampling. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to `1000`): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to `0.0001`): + The starting `beta` value of inference. + beta_end (`float`, defaults to `0.02`): + The final `beta` value. + beta_schedule (`"linear"`, `"scaled_linear"`, `"squaredcos_cap_v2"`, or `"sigmoid"`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. + trained_betas (`np.ndarray`, *optional*): + An array of betas to pass directly to the constructor without using `beta_start` and `beta_end`. + variance_type (`"fixed_small"`, `"fixed_small_log"`, `"fixed_large"`, `"fixed_large_log"`, `"learned"`, or `"learned_range"`, defaults to `"fixed_small"`): + Clip the variance when adding noise to the denoised sample. + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample for numerical stability. + clip_sample_range (`float`, defaults to `1.0`): + The maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + prediction_type (`"epsilon"`, `"sample"`, or `"v_prediction"`, defaults to `"epsilon"`): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to `0.995`): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to `1.0`): + The threshold value for dynamic thresholding. Valid only when `thresholding=True`. + timestep_spacing (`"linspace"`, `"leading"`, or `"trailing"`, defaults to `"leading"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to `0`): + An offset added to the inference steps, as required by some model families. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: Literal["linear", "scaled_linear", "squaredcos_cap_v2", "sigmoid"] = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + variance_type: Literal[ + "fixed_small", "fixed_small_log", "fixed_large", "fixed_large_log", "learned", "learned_range" + ] = "fixed_small", + clip_sample: bool = True, + prediction_type: Literal["epsilon", "sample", "v_prediction"] = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + clip_sample_range: float = 1.0, + sample_max_value: float = 1.0, + timestep_spacing: Literal["linspace", "leading", "trailing"] = "leading", + steps_offset: int = 0, + rescale_betas_zero_snr: bool = False, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + elif beta_schedule == "sigmoid": + # GeoDiff sigmoid schedule + betas = torch.linspace(-6, 6, num_train_timesteps) + self.betas = torch.sigmoid(betas) * (beta_end - beta_start) + beta_start + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + self.one = torch.tensor(1.0) + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.custom_timesteps = False + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy()) + + self.variance_type = variance_type + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + timesteps: Optional[List[int]] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, + `timesteps` must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary spacing between timesteps. If `None`, then the default + timestep spacing strategy of equal spacing between timesteps is used. If `timesteps` is passed, + `num_inference_steps` must be `None`. + + """ + if num_inference_steps is not None and timesteps is not None: + raise ValueError("Can only pass one of `num_inference_steps` or `custom_timesteps`.") + + if timesteps is not None: + for i in range(1, len(timesteps)): + if timesteps[i] >= timesteps[i - 1]: + raise ValueError("`custom_timesteps` must be in descending order.") + + if timesteps[0] >= self.config.num_train_timesteps: + raise ValueError( + f"`timesteps` must start before `self.config.train_timesteps`: {self.config.num_train_timesteps}." + ) + + timesteps = np.array(timesteps, dtype=np.int64) + self.custom_timesteps = True + else: + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + self.num_inference_steps = num_inference_steps + self.custom_timesteps = False + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps) + .round()[::-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.round(np.arange(self.config.num_train_timesteps, 0, -step_ratio)).astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + self.timesteps = torch.from_numpy(timesteps).to(device) + + def _get_variance( + self, + t: int, + predicted_variance: Optional[torch.Tensor] = None, + variance_type: Optional[ + Literal["fixed_small", "fixed_small_log", "fixed_large", "fixed_large_log", "learned", "learned_range"] + ] = None, + ) -> torch.Tensor: + """ + Compute the variance for a given timestep according to the specified variance type. + + Args: + t (`int`): + The current timestep. + predicted_variance (`torch.Tensor`, *optional*): + The predicted variance from the model. Used only when `variance_type` is `"learned"` or + `"learned_range"`. + variance_type (`"fixed_small"`, `"fixed_small_log"`, `"fixed_large"`, `"fixed_large_log"`, `"learned"`, or `"learned_range"`, *optional*): + The type of variance to compute. If `None`, uses the variance type specified in the scheduler + configuration. + + Returns: + `torch.Tensor`: + The computed variance. + """ + prev_t = self.previous_timestep(t) + + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[prev_t] if prev_t >= 0 else self.one + current_beta_t = 1 - alpha_prod_t / alpha_prod_t_prev + + # For t > 0, compute predicted variance βt (see formula (6) and (7) from https://huggingface.co/papers/2006.11239) + # and sample from it to get previous sample + # x_{t-1} ~ N(pred_prev_sample, variance) == add variance to pred_sample + variance = (1 - alpha_prod_t_prev) / (1 - alpha_prod_t) * current_beta_t + + # we always take the log of variance, so clamp it to ensure it's not 0 + variance = torch.clamp(variance, min=1e-20) + + if variance_type is None: + variance_type = self.config.variance_type + + # hacks - were probably added for training stability + if variance_type == "fixed_small": + variance = variance + # for rl-diffuser https://huggingface.co/papers/2205.09991 + elif variance_type == "fixed_small_log": + variance = torch.log(variance) + variance = torch.exp(0.5 * variance) + elif variance_type == "fixed_large": + variance = current_beta_t + elif variance_type == "fixed_large_log": + # Glide max_log + variance = torch.log(current_beta_t) + elif variance_type == "learned": + return predicted_variance + elif variance_type == "learned_range": + min_log = torch.log(variance) + max_log = torch.log(current_beta_t) + frac = (predicted_variance + 1) / 2 + variance = frac * max_log + (1 - frac) * min_log + + return variance + + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[DDPMSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_ddpm.DDPMSchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_ddpm.DDPMSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_ddpm.DDPMSchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + """ + t = timestep + + prev_t = self.previous_timestep(t) + + if model_output.shape[1] == sample.shape[1] * 2 and self.variance_type in ["learned", "learned_range"]: + model_output, predicted_variance = torch.split(model_output, sample.shape[1], dim=1) + else: + predicted_variance = None + + # 1. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[prev_t] if prev_t >= 0 else self.one + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + current_alpha_t = alpha_prod_t / alpha_prod_t_prev + current_beta_t = 1 - current_alpha_t + + # 2. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (15) from https://huggingface.co/papers/2006.11239 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample` or" + " `v_prediction` for the DDPMScheduler." + ) + + # 3. Clip or threshold "predicted x_0" + if self.config.thresholding: + pred_original_sample = self._threshold_sample(pred_original_sample) + elif self.config.clip_sample: + pred_original_sample = pred_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 4. Compute coefficients for pred_original_sample x_0 and current sample x_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_original_sample_coeff = (alpha_prod_t_prev ** (0.5) * current_beta_t) / beta_prod_t + current_sample_coeff = current_alpha_t ** (0.5) * beta_prod_t_prev / beta_prod_t + + # 5. Compute predicted previous sample µ_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_prev_sample = pred_original_sample_coeff * pred_original_sample + current_sample_coeff * sample + + # 6. Add noise + variance = 0 + if t > 0: + device = model_output.device + variance_noise = randn_tensor( + model_output.shape, generator=generator, device=device, dtype=model_output.dtype + ) + if self.variance_type == "fixed_small_log": + variance = self._get_variance(t, predicted_variance=predicted_variance) * variance_noise + elif self.variance_type == "learned_range": + variance = self._get_variance(t, predicted_variance=predicted_variance) + variance = torch.exp(0.5 * variance) * variance_noise + else: + variance = (self._get_variance(t, predicted_variance=predicted_variance) ** 0.5) * variance_noise + + pred_prev_sample = pred_prev_sample + variance + + if not return_dict: + return ( + pred_prev_sample, + pred_original_sample, + ) + + return DDPMSchedulerOutput(prev_sample=pred_prev_sample, pred_original_sample=pred_original_sample) + + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.IntTensor) -> torch.Tensor: + """ + Compute the velocity prediction from the sample and noise according to the velocity formula. + + Args: + sample (`torch.Tensor`): + The input sample. + noise (`torch.Tensor`): + The noise tensor. + timesteps (`torch.IntTensor`): + The timesteps for velocity computation. + + Returns: + `torch.Tensor`: + The computed velocity. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as sample + self.alphas_cumprod = self.alphas_cumprod.to(device=sample.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=sample.dtype) + timesteps = timesteps.to(sample.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self) -> int: + return self.config.num_train_timesteps + + def previous_timestep(self, timestep: int) -> int: + """ + Compute the previous timestep in the diffusion chain. + + Args: + timestep (`int`): + The current timestep. + + Returns: + `int`: + The previous timestep. + """ + if self.custom_timesteps or self.num_inference_steps: + index = (self.timesteps == timestep).nonzero(as_tuple=True)[0][0] + if index == self.timesteps.shape[0] - 1: + prev_t = torch.tensor(-1) + else: + prev_t = self.timesteps[index + 1] + else: + prev_t = timestep - 1 + return prev_t diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..a3264f54f572f60c1d44898bd220bf512684f1cb --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_flax.py @@ -0,0 +1,303 @@ +# Copyright 2025 UC Berkeley Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/ermongroup/ddim + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import flax +import jax +import jax.numpy as jnp + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils_flax import ( + CommonSchedulerState, + FlaxKarrasDiffusionSchedulers, + FlaxSchedulerMixin, + FlaxSchedulerOutput, + add_noise_common, + get_velocity_common, +) + + +@flax.struct.dataclass +class DDPMSchedulerState: + common: CommonSchedulerState + + # setable values + init_noise_sigma: jnp.ndarray + timesteps: jnp.ndarray + num_inference_steps: Optional[int] = None + + @classmethod + def create(cls, common: CommonSchedulerState, init_noise_sigma: jnp.ndarray, timesteps: jnp.ndarray): + return cls(common=common, init_noise_sigma=init_noise_sigma, timesteps=timesteps) + + +@dataclass +class FlaxDDPMSchedulerOutput(FlaxSchedulerOutput): + state: DDPMSchedulerState + + +class FlaxDDPMScheduler(FlaxSchedulerMixin, ConfigMixin): + """ + Denoising diffusion probabilistic models (DDPMs) explores the connections between denoising score matching and + Langevin dynamics sampling. + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + For more details, see the original paper: https://huggingface.co/papers/2006.11239 + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + beta_start (`float`): the starting `beta` value of inference. + beta_end (`float`): the final `beta` value. + beta_schedule (`str`): + the beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, optional): + option to pass an array of betas directly to the constructor to bypass `beta_start`, `beta_end` etc. + variance_type (`str`): + options to clip the variance used when adding noise to the denoised sample. Choose from `fixed_small`, + `fixed_small_log`, `fixed_large`, `fixed_large_log`, `learned` or `learned_range`. + clip_sample (`bool`, default `True`): + option to clip predicted sample between -1 and 1 for numerical stability. + prediction_type (`str`, default `epsilon`): + indicates whether the model predicts the noise (epsilon), or the samples. One of `epsilon`, `sample`. + `v-prediction` is not supported for this scheduler. + dtype (`jnp.dtype`, *optional*, defaults to `jnp.float32`): + the `dtype` used for params and computation. + """ + + _compatibles = [e.name for e in FlaxKarrasDiffusionSchedulers] + + dtype: jnp.dtype + + @property + def has_state(self): + return True + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[jnp.ndarray] = None, + variance_type: str = "fixed_small", + clip_sample: bool = True, + prediction_type: str = "epsilon", + dtype: jnp.dtype = jnp.float32, + ): + self.dtype = dtype + + def create_state(self, common: Optional[CommonSchedulerState] = None) -> DDPMSchedulerState: + if common is None: + common = CommonSchedulerState.create(self) + + # standard deviation of the initial noise distribution + init_noise_sigma = jnp.array(1.0, dtype=self.dtype) + + timesteps = jnp.arange(0, self.config.num_train_timesteps).round()[::-1] + + return DDPMSchedulerState.create( + common=common, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + ) + + def scale_model_input( + self, state: DDPMSchedulerState, sample: jnp.ndarray, timestep: Optional[int] = None + ) -> jnp.ndarray: + """ + Args: + state (`PNDMSchedulerState`): the `FlaxPNDMScheduler` state data class instance. + sample (`jnp.ndarray`): input sample + timestep (`int`, optional): current timestep + + Returns: + `jnp.ndarray`: scaled input sample + """ + return sample + + def set_timesteps( + self, state: DDPMSchedulerState, num_inference_steps: int, shape: Tuple = () + ) -> DDPMSchedulerState: + """ + Sets the discrete timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + state (`DDIMSchedulerState`): + the `FlaxDDPMScheduler` state data class instance. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + """ + + step_ratio = self.config.num_train_timesteps // num_inference_steps + # creates integer timesteps by multiplying by ratio + # rounding to avoid issues when num_inference_step is power of 3 + timesteps = (jnp.arange(0, num_inference_steps) * step_ratio).round()[::-1] + + return state.replace( + num_inference_steps=num_inference_steps, + timesteps=timesteps, + ) + + def _get_variance(self, state: DDPMSchedulerState, t, predicted_variance=None, variance_type=None): + alpha_prod_t = state.common.alphas_cumprod[t] + alpha_prod_t_prev = jnp.where(t > 0, state.common.alphas_cumprod[t - 1], jnp.array(1.0, dtype=self.dtype)) + + # For t > 0, compute predicted variance βt (see formula (6) and (7) from https://huggingface.co/papers/2006.11239) + # and sample from it to get previous sample + # x_{t-1} ~ N(pred_prev_sample, variance) == add variance to pred_sample + variance = (1 - alpha_prod_t_prev) / (1 - alpha_prod_t) * state.common.betas[t] + + if variance_type is None: + variance_type = self.config.variance_type + + # hacks - were probably added for training stability + if variance_type == "fixed_small": + variance = jnp.clip(variance, a_min=1e-20) + # for rl-diffuser https://huggingface.co/papers/2205.09991 + elif variance_type == "fixed_small_log": + variance = jnp.log(jnp.clip(variance, a_min=1e-20)) + elif variance_type == "fixed_large": + variance = state.common.betas[t] + elif variance_type == "fixed_large_log": + # Glide max_log + variance = jnp.log(state.common.betas[t]) + elif variance_type == "learned": + return predicted_variance + elif variance_type == "learned_range": + min_log = variance + max_log = state.common.betas[t] + frac = (predicted_variance + 1) / 2 + variance = frac * max_log + (1 - frac) * min_log + + return variance + + def step( + self, + state: DDPMSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + key: Optional[jax.Array] = None, + return_dict: bool = True, + ) -> Union[FlaxDDPMSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + state (`DDPMSchedulerState`): the `FlaxDDPMScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + key (`jax.Array`): a PRNG key. + return_dict (`bool`): option for returning tuple rather than FlaxDDPMSchedulerOutput class + + Returns: + [`FlaxDDPMSchedulerOutput`] or `tuple`: [`FlaxDDPMSchedulerOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + t = timestep + + if key is None: + key = jax.random.key(0) + + if ( + len(model_output.shape) > 1 + and model_output.shape[1] == sample.shape[1] * 2 + and self.config.variance_type in ["learned", "learned_range"] + ): + model_output, predicted_variance = jnp.split(model_output, sample.shape[1], axis=1) + else: + predicted_variance = None + + # 1. compute alphas, betas + alpha_prod_t = state.common.alphas_cumprod[t] + alpha_prod_t_prev = jnp.where(t > 0, state.common.alphas_cumprod[t - 1], jnp.array(1.0, dtype=self.dtype)) + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + # 2. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (15) from https://huggingface.co/papers/2006.11239 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample` " + " for the FlaxDDPMScheduler." + ) + + # 3. Clip "predicted x_0" + if self.config.clip_sample: + pred_original_sample = jnp.clip(pred_original_sample, -1, 1) + + # 4. Compute coefficients for pred_original_sample x_0 and current sample x_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_original_sample_coeff = (alpha_prod_t_prev ** (0.5) * state.common.betas[t]) / beta_prod_t + current_sample_coeff = state.common.alphas[t] ** (0.5) * beta_prod_t_prev / beta_prod_t + + # 5. Compute predicted previous sample µ_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_prev_sample = pred_original_sample_coeff * pred_original_sample + current_sample_coeff * sample + + # 6. Add noise + def random_variance(): + split_key = jax.random.split(key, num=1)[0] + noise = jax.random.normal(split_key, shape=model_output.shape, dtype=self.dtype) + return (self._get_variance(state, t, predicted_variance=predicted_variance) ** 0.5) * noise + + variance = jnp.where(t > 0, random_variance(), jnp.zeros(model_output.shape, dtype=self.dtype)) + + pred_prev_sample = pred_prev_sample + variance + + if not return_dict: + return (pred_prev_sample, state) + + return FlaxDDPMSchedulerOutput(prev_sample=pred_prev_sample, state=state) + + def add_noise( + self, + state: DDPMSchedulerState, + original_samples: jnp.ndarray, + noise: jnp.ndarray, + timesteps: jnp.ndarray, + ) -> jnp.ndarray: + return add_noise_common(state.common, original_samples, noise, timesteps) + + def get_velocity( + self, + state: DDPMSchedulerState, + sample: jnp.ndarray, + noise: jnp.ndarray, + timesteps: jnp.ndarray, + ) -> jnp.ndarray: + return get_velocity_common(state.common, sample, noise, timesteps) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_parallel.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_parallel.py new file mode 100644 index 0000000000000000000000000000000000000000..78011d0e46a123b0d12387fd3011e17a65c13525 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_parallel.py @@ -0,0 +1,728 @@ +# Copyright 2025 ParaDiGMS authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/ermongroup/ddim + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput +class DDPMParallelSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas): + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class DDPMParallelScheduler(SchedulerMixin, ConfigMixin): + """ + Denoising diffusion probabilistic models (DDPMs) explores the connections between denoising score matching and + Langevin dynamics sampling. + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + For more details, see the original paper: https://huggingface.co/papers/2006.11239 + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + beta_start (`float`): the starting `beta` value of inference. + beta_end (`float`): the final `beta` value. + beta_schedule (`str`): + the beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, `squaredcos_cap_v2` or `sigmoid`. + trained_betas (`np.ndarray`, optional): + option to pass an array of betas directly to the constructor to bypass `beta_start`, `beta_end` etc. + variance_type (`str`): + options to clip the variance used when adding noise to the denoised sample. Choose from `fixed_small`, + `fixed_small_log`, `fixed_large`, `fixed_large_log`, `learned` or `learned_range`. + clip_sample (`bool`, default `True`): + option to clip predicted sample for numerical stability. + clip_sample_range (`float`, default `1.0`): + the maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + prediction_type (`str`, default `epsilon`, optional): + prediction type of the scheduler function, one of `epsilon` (predicting the noise of the diffusion + process), `sample` (directly predicting the noisy sample`) or `v_prediction` (see section 2.4 + https://imagen.research.google/video/paper.pdf) + thresholding (`bool`, default `False`): + whether to use the "dynamic thresholding" method (introduced by Imagen, + https://huggingface.co/papers/2205.11487). Note that the thresholding method is unsuitable for latent-space + diffusion models (such as stable-diffusion). + dynamic_thresholding_ratio (`float`, default `0.995`): + the ratio for the dynamic thresholding method. Default is `0.995`, the same as Imagen + (https://huggingface.co/papers/2205.11487). Valid only when `thresholding=True`. + sample_max_value (`float`, default `1.0`): + the threshold value for dynamic thresholding. Valid only when `thresholding=True`. + timestep_spacing (`str`, default `"leading"`): + The way the timesteps should be scaled. Refer to Table 2. of [Common Diffusion Noise Schedules and Sample + Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, default `0`): + An offset added to the inference steps, as required by some model families. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + _is_ode_scheduler = False + + @register_to_config + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.__init__ + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: Literal["linear", "scaled_linear", "squaredcos_cap_v2", "sigmoid"] = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + variance_type: Literal[ + "fixed_small", "fixed_small_log", "fixed_large", "fixed_large_log", "learned", "learned_range" + ] = "fixed_small", + clip_sample: bool = True, + prediction_type: Literal["epsilon", "sample", "v_prediction"] = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + clip_sample_range: float = 1.0, + sample_max_value: float = 1.0, + timestep_spacing: Literal["linspace", "leading", "trailing"] = "leading", + steps_offset: int = 0, + rescale_betas_zero_snr: bool = False, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + elif beta_schedule == "sigmoid": + # GeoDiff sigmoid schedule + betas = torch.linspace(-6, 6, num_train_timesteps) + self.betas = torch.sigmoid(betas) * (beta_end - beta_start) + beta_start + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + self.one = torch.tensor(1.0) + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.custom_timesteps = False + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy()) + + self.variance_type = variance_type + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.scale_model_input + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.set_timesteps + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + timesteps: Optional[List[int]] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, + `timesteps` must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary spacing between timesteps. If `None`, then the default + timestep spacing strategy of equal spacing between timesteps is used. If `timesteps` is passed, + `num_inference_steps` must be `None`. + + """ + if num_inference_steps is not None and timesteps is not None: + raise ValueError("Can only pass one of `num_inference_steps` or `custom_timesteps`.") + + if timesteps is not None: + for i in range(1, len(timesteps)): + if timesteps[i] >= timesteps[i - 1]: + raise ValueError("`custom_timesteps` must be in descending order.") + + if timesteps[0] >= self.config.num_train_timesteps: + raise ValueError( + f"`timesteps` must start before `self.config.train_timesteps`: {self.config.num_train_timesteps}." + ) + + timesteps = np.array(timesteps, dtype=np.int64) + self.custom_timesteps = True + else: + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + self.num_inference_steps = num_inference_steps + self.custom_timesteps = False + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps) + .round()[::-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.round(np.arange(self.config.num_train_timesteps, 0, -step_ratio)).astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + self.timesteps = torch.from_numpy(timesteps).to(device) + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._get_variance + def _get_variance( + self, + t: int, + predicted_variance: Optional[torch.Tensor] = None, + variance_type: Optional[ + Literal["fixed_small", "fixed_small_log", "fixed_large", "fixed_large_log", "learned", "learned_range"] + ] = None, + ) -> torch.Tensor: + """ + Compute the variance for a given timestep according to the specified variance type. + + Args: + t (`int`): + The current timestep. + predicted_variance (`torch.Tensor`, *optional*): + The predicted variance from the model. Used only when `variance_type` is `"learned"` or + `"learned_range"`. + variance_type (`"fixed_small"`, `"fixed_small_log"`, `"fixed_large"`, `"fixed_large_log"`, `"learned"`, or `"learned_range"`, *optional*): + The type of variance to compute. If `None`, uses the variance type specified in the scheduler + configuration. + + Returns: + `torch.Tensor`: + The computed variance. + """ + prev_t = self.previous_timestep(t) + + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[prev_t] if prev_t >= 0 else self.one + current_beta_t = 1 - alpha_prod_t / alpha_prod_t_prev + + # For t > 0, compute predicted variance βt (see formula (6) and (7) from https://huggingface.co/papers/2006.11239) + # and sample from it to get previous sample + # x_{t-1} ~ N(pred_prev_sample, variance) == add variance to pred_sample + variance = (1 - alpha_prod_t_prev) / (1 - alpha_prod_t) * current_beta_t + + # we always take the log of variance, so clamp it to ensure it's not 0 + variance = torch.clamp(variance, min=1e-20) + + if variance_type is None: + variance_type = self.config.variance_type + + # hacks - were probably added for training stability + if variance_type == "fixed_small": + variance = variance + # for rl-diffuser https://huggingface.co/papers/2205.09991 + elif variance_type == "fixed_small_log": + variance = torch.log(variance) + variance = torch.exp(0.5 * variance) + elif variance_type == "fixed_large": + variance = current_beta_t + elif variance_type == "fixed_large_log": + # Glide max_log + variance = torch.log(current_beta_t) + elif variance_type == "learned": + return predicted_variance + elif variance_type == "learned_range": + min_log = torch.log(variance) + max_log = torch.log(current_beta_t) + frac = (predicted_variance + 1) / 2 + variance = frac * max_log + (1 - frac) * min_log + + return variance + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + generator=None, + return_dict: bool = True, + ) -> Union[DDPMParallelSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + current instance of sample being created by diffusion process. + generator: random number generator. + return_dict (`bool`): option for returning tuple rather than DDPMParallelSchedulerOutput class + + Returns: + [`~schedulers.scheduling_utils.DDPMParallelSchedulerOutput`] or `tuple`: + [`~schedulers.scheduling_utils.DDPMParallelSchedulerOutput`] if `return_dict` is True, otherwise a `tuple`. + When returning a tuple, the first element is the sample tensor. + + """ + t = timestep + + prev_t = self.previous_timestep(t) + + if model_output.shape[1] == sample.shape[1] * 2 and self.variance_type in ["learned", "learned_range"]: + model_output, predicted_variance = torch.split(model_output, sample.shape[1], dim=1) + else: + predicted_variance = None + + # 1. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[prev_t] if prev_t >= 0 else self.one + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + current_alpha_t = alpha_prod_t / alpha_prod_t_prev + current_beta_t = 1 - current_alpha_t + + # 2. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (15) from https://huggingface.co/papers/2006.11239 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample` or" + " `v_prediction` for the DDPMScheduler." + ) + + # 3. Clip or threshold "predicted x_0" + if self.config.thresholding: + pred_original_sample = self._threshold_sample(pred_original_sample) + elif self.config.clip_sample: + pred_original_sample = pred_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 4. Compute coefficients for pred_original_sample x_0 and current sample x_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_original_sample_coeff = (alpha_prod_t_prev ** (0.5) * current_beta_t) / beta_prod_t + current_sample_coeff = current_alpha_t ** (0.5) * beta_prod_t_prev / beta_prod_t + + # 5. Compute predicted previous sample µ_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_prev_sample = pred_original_sample_coeff * pred_original_sample + current_sample_coeff * sample + + # 6. Add noise + variance = 0 + if t > 0: + device = model_output.device + variance_noise = randn_tensor( + model_output.shape, generator=generator, device=device, dtype=model_output.dtype + ) + if self.variance_type == "fixed_small_log": + variance = self._get_variance(t, predicted_variance=predicted_variance) * variance_noise + elif self.variance_type == "learned_range": + variance = self._get_variance(t, predicted_variance=predicted_variance) + variance = torch.exp(0.5 * variance) * variance_noise + else: + variance = (self._get_variance(t, predicted_variance=predicted_variance) ** 0.5) * variance_noise + + pred_prev_sample = pred_prev_sample + variance + + if not return_dict: + return ( + pred_prev_sample, + pred_original_sample, + ) + + return DDPMParallelSchedulerOutput(prev_sample=pred_prev_sample, pred_original_sample=pred_original_sample) + + def batch_step_no_noise( + self, + model_output: torch.Tensor, + timesteps: List[int], + sample: torch.Tensor, + ) -> torch.Tensor: + """ + Batched version of the `step` function, to be able to reverse the SDE for multiple samples/timesteps at once. + Also, does not add any noise to the predicted sample, which is necessary for parallel sampling where the noise + is pre-sampled by the pipeline. + + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): direct output from learned diffusion model. + timesteps (`List[int]`): + current discrete timesteps in the diffusion chain. This is now a list of integers. + sample (`torch.Tensor`): + current instance of sample being created by diffusion process. + + Returns: + `torch.Tensor`: sample tensor at previous timestep. + """ + t = timesteps + num_inference_steps = self.num_inference_steps if self.num_inference_steps else self.config.num_train_timesteps + prev_t = t - self.config.num_train_timesteps // num_inference_steps + + t = t.view(-1, *([1] * (model_output.ndim - 1))) + prev_t = prev_t.view(-1, *([1] * (model_output.ndim - 1))) + + if model_output.shape[1] == sample.shape[1] * 2 and self.variance_type in ["learned", "learned_range"]: + model_output, predicted_variance = torch.split(model_output, sample.shape[1], dim=1) + else: + pass + + # 1. compute alphas, betas + self.alphas_cumprod = self.alphas_cumprod.to(model_output.device) + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[torch.clip(prev_t, min=0)] + alpha_prod_t_prev[prev_t < 0] = torch.tensor(1.0) + + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + current_alpha_t = alpha_prod_t / alpha_prod_t_prev + current_beta_t = 1 - current_alpha_t + + # 2. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (15) from https://huggingface.co/papers/2006.11239 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample` or" + " `v_prediction` for the DDPMParallelScheduler." + ) + + # 3. Clip or threshold "predicted x_0" + if self.config.thresholding: + pred_original_sample = self._threshold_sample(pred_original_sample) + elif self.config.clip_sample: + pred_original_sample = pred_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 4. Compute coefficients for pred_original_sample x_0 and current sample x_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_original_sample_coeff = (alpha_prod_t_prev ** (0.5) * current_beta_t) / beta_prod_t + current_sample_coeff = current_alpha_t ** (0.5) * beta_prod_t_prev / beta_prod_t + + # 5. Compute predicted previous sample µ_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_prev_sample = pred_original_sample_coeff * pred_original_sample + current_sample_coeff * sample + + return pred_prev_sample + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.get_velocity + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.IntTensor) -> torch.Tensor: + """ + Compute the velocity prediction from the sample and noise according to the velocity formula. + + Args: + sample (`torch.Tensor`): + The input sample. + noise (`torch.Tensor`): + The noise tensor. + timesteps (`torch.IntTensor`): + The timesteps for velocity computation. + + Returns: + `torch.Tensor`: + The computed velocity. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as sample + self.alphas_cumprod = self.alphas_cumprod.to(device=sample.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=sample.dtype) + timesteps = timesteps.to(sample.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self): + return self.config.num_train_timesteps + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.previous_timestep + def previous_timestep(self, timestep): + """ + Compute the previous timestep in the diffusion chain. + + Args: + timestep (`int`): + The current timestep. + + Returns: + `int`: + The previous timestep. + """ + if self.custom_timesteps or self.num_inference_steps: + index = (self.timesteps == timestep).nonzero(as_tuple=True)[0][0] + if index == self.timesteps.shape[0] - 1: + prev_t = torch.tensor(-1) + else: + prev_t = self.timesteps[index + 1] + else: + prev_t = timestep - 1 + return prev_t diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_wuerstchen.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_wuerstchen.py new file mode 100644 index 0000000000000000000000000000000000000000..71f08277ebd71fc363dcddc4c8dd5fb6fa250e2b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ddpm_wuerstchen.py @@ -0,0 +1,230 @@ +# Copyright (c) 2022 Pablo Pernías MIT License +# Copyright 2025 UC Berkeley Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/ermongroup/ddim + +import math +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +@dataclass +class DDPMWuerstchenSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's step function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample (x_{t-1}) of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: torch.Tensor + + +def betas_for_alpha_bar( + num_diffusion_timesteps, + max_beta=0.999, + alpha_transform_type="cosine", +): + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + + Args: + num_diffusion_timesteps (`int`): the number of betas to produce. + max_beta (`float`): the maximum beta to use; use values lower than 1 to + prevent singularities. + alpha_transform_type (`str`, *optional*, default to `cosine`): the type of noise schedule for alpha_bar. + Choose from `cosine` or `exp` + + Returns: + betas (`np.ndarray`): the betas used by the scheduler to step the model outputs + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class DDPMWuerstchenScheduler(SchedulerMixin, ConfigMixin): + """ + Denoising diffusion probabilistic models (DDPMs) explores the connections between denoising score matching and + Langevin dynamics sampling. + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + For more details, see the original paper: https://huggingface.co/papers/2006.11239 + + Args: + scaler (`float`): .... + s (`float`): .... + """ + + @register_to_config + def __init__( + self, + scaler: float = 1.0, + s: float = 0.008, + ): + self.scaler = scaler + self.s = torch.tensor([s]) + self._init_alpha_cumprod = torch.cos(self.s / (1 + self.s) * torch.pi * 0.5) ** 2 + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + def _alpha_cumprod(self, t, device): + if self.scaler > 1: + t = 1 - (1 - t) ** self.scaler + elif self.scaler < 1: + t = t**self.scaler + alpha_cumprod = torch.cos( + (t + self.s.to(device)) / (1 + self.s.to(device)) * torch.pi * 0.5 + ) ** 2 / self._init_alpha_cumprod.to(device) + return alpha_cumprod.clamp(0.0001, 0.9999) + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): input sample + timestep (`int`, optional): current timestep + + Returns: + `torch.Tensor`: scaled input sample + """ + return sample + + def set_timesteps( + self, + num_inference_steps: int = None, + timesteps: Optional[List[int]] = None, + device: Union[str, torch.device] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + num_inference_steps (`Dict[float, int]`): + the number of diffusion steps used when generating samples with a pre-trained model. If passed, then + `timesteps` must be `None`. + device (`str` or `torch.device`, optional): + the device to which the timesteps are moved to. {2 / 3: 20, 0.0: 10} + """ + if timesteps is None: + timesteps = torch.linspace(1.0, 0.0, num_inference_steps + 1, device=device) + if not isinstance(timesteps, torch.Tensor): + timesteps = torch.Tensor(timesteps).to(device) + self.timesteps = timesteps + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + generator=None, + return_dict: bool = True, + ) -> Union[DDPMWuerstchenSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + current instance of sample being created by diffusion process. + generator: random number generator. + return_dict (`bool`): option for returning tuple rather than DDPMWuerstchenSchedulerOutput class + + Returns: + [`DDPMWuerstchenSchedulerOutput`] or `tuple`: [`DDPMWuerstchenSchedulerOutput`] if `return_dict` is True, + otherwise a `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + dtype = model_output.dtype + device = model_output.device + t = timestep + + prev_t = self.previous_timestep(t) + + alpha_cumprod = self._alpha_cumprod(t, device).view(t.size(0), *[1 for _ in sample.shape[1:]]) + alpha_cumprod_prev = self._alpha_cumprod(prev_t, device).view(prev_t.size(0), *[1 for _ in sample.shape[1:]]) + alpha = alpha_cumprod / alpha_cumprod_prev + + mu = (1.0 / alpha).sqrt() * (sample - (1 - alpha) * model_output / (1 - alpha_cumprod).sqrt()) + + std_noise = randn_tensor(mu.shape, generator=generator, device=model_output.device, dtype=model_output.dtype) + std = ((1 - alpha) * (1.0 - alpha_cumprod_prev) / (1.0 - alpha_cumprod)).sqrt() * std_noise + pred = mu + std * (prev_t != 0).float().view(prev_t.size(0), *[1 for _ in sample.shape[1:]]) + + if not return_dict: + return (pred.to(dtype),) + + return DDPMWuerstchenSchedulerOutput(prev_sample=pred.to(dtype)) + + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + device = original_samples.device + dtype = original_samples.dtype + alpha_cumprod = self._alpha_cumprod(timesteps, device=device).view( + timesteps.size(0), *[1 for _ in original_samples.shape[1:]] + ) + noisy_samples = alpha_cumprod.sqrt() * original_samples + (1 - alpha_cumprod).sqrt() * noise + return noisy_samples.to(dtype=dtype) + + def __len__(self): + return self.config.num_train_timesteps + + def previous_timestep(self, timestep): + index = (self.timesteps - timestep[0]).abs().argmin().item() + prev_t = self.timesteps[index + 1][None].expand(timestep.shape[0]) + return prev_t diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_deis_multistep.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_deis_multistep.py new file mode 100644 index 0000000000000000000000000000000000000000..bf8e1d98d6c0f9ecd3f743c4eeb8f3858a47c038 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_deis_multistep.py @@ -0,0 +1,959 @@ +# Copyright 2025 FLAIR Lab and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: check https://huggingface.co/papers/2204.13902 and https://github.com/qsh-zh/deis for more info +# The codebase is modified based on https://github.com/huggingface/diffusers/blob/main/src/diffusers/schedulers/scheduling_dpmsolver_multistep.py + +import math +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import deprecate, is_scipy_available +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin, SchedulerOutput + + +if is_scipy_available(): + import scipy.stats + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class DEISMultistepScheduler(SchedulerMixin, ConfigMixin): + """ + `DEISMultistepScheduler` is a fast high order solver for diffusion ordinary differential equations (ODEs). + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + solver_order (`int`, defaults to 2): + The DEIS order which can be `1` or `2` or `3`. It is recommended to use `solver_order=2` for guided + sampling, and `solver_order=3` for unconditional sampling. + prediction_type (`str`, defaults to `epsilon`): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True`. + algorithm_type (`str`, defaults to `deis`): + The algorithm type for the solver. + lower_order_final (`bool`, defaults to `True`): + Whether to use lower-order solvers in the final steps. Only valid for < 15 inference steps. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[np.ndarray] = None, + solver_order: int = 2, + prediction_type: str = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + algorithm_type: str = "deis", + solver_type: str = "logrho", + lower_order_final: bool = True, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + use_flow_sigmas: Optional[bool] = False, + flow_shift: Optional[float] = 1.0, + timestep_spacing: str = "linspace", + steps_offset: int = 0, + use_dynamic_shifting: bool = False, + time_shift_type: str = "exponential", + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + # Currently we only support VP-type noise schedule + self.alpha_t = torch.sqrt(self.alphas_cumprod) + self.sigma_t = torch.sqrt(1 - self.alphas_cumprod) + self.lambda_t = torch.log(self.alpha_t) - torch.log(self.sigma_t) + self.sigmas = ((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5 + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # settings for DEIS + if algorithm_type not in ["deis"]: + if algorithm_type in ["dpmsolver", "dpmsolver++"]: + self.register_to_config(algorithm_type="deis") + else: + raise NotImplementedError(f"{algorithm_type} is not implemented for {self.__class__}") + + if solver_type not in ["logrho"]: + if solver_type in ["midpoint", "heun", "bh1", "bh2"]: + self.register_to_config(solver_type="logrho") + else: + raise NotImplementedError(f"solver type {solver_type} is not implemented for {self.__class__}") + + # setable values + self.num_inference_steps = None + timesteps = np.linspace(0, num_train_timesteps - 1, num_train_timesteps, dtype=np.float32)[::-1].copy() + self.timesteps = torch.from_numpy(timesteps) + self.model_outputs = [None] * solver_order + self.lower_order_nums = 0 + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_timesteps( + self, num_inference_steps: int, device: Union[str, torch.device] = None, mu: Optional[float] = None + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + if mu is not None: + assert self.config.use_dynamic_shifting and self.config.time_shift_type == "exponential" + self.config.flow_shift = np.exp(mu) + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps + 1) + .round()[::-1][:-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // (num_inference_steps + 1) + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps + 1) * step_ratio).round()[::-1][:-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.arange(self.config.num_train_timesteps, 0, -step_ratio).round().copy().astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + if self.config.use_karras_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]).round() + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_exponential_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_beta_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_flow_sigmas: + alphas = np.linspace(1, 1 / self.config.num_train_timesteps, num_inference_steps + 1) + sigmas = 1.0 - alphas + sigmas = np.flip(self.config.flow_shift * sigmas / (1 + (self.config.flow_shift - 1) * sigmas))[:-1].copy() + timesteps = (sigmas * self.config.num_train_timesteps).copy() + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + else: + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + sigma_last = ((1 - self.alphas_cumprod[0]) / self.alphas_cumprod[0]) ** 0.5 + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + + self.sigmas = torch.from_numpy(sigmas) + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.int64) + + self.num_inference_steps = len(timesteps) + + self.model_outputs = [ + None, + ] * self.config.solver_order + self.lower_order_nums = 0 + + # add an index counter for schedulers that allow duplicated timesteps + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._sigma_to_alpha_sigma_t + def _sigma_to_alpha_sigma_t(self, sigma): + if self.config.use_flow_sigmas: + alpha_t = 1 - sigma + sigma_t = sigma + else: + alpha_t = 1 / ((sigma**2 + 1) ** 0.5) + sigma_t = sigma * alpha_t + + return alpha_t, sigma_t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def convert_model_output( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + """ + Convert the model output to the corresponding type the DEIS algorithm needs. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The converted model output. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + if sample is None: + if len(args) > 1: + sample = args[1] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + if self.config.prediction_type == "epsilon": + x0_pred = (sample - sigma_t * model_output) / alpha_t + elif self.config.prediction_type == "sample": + x0_pred = model_output + elif self.config.prediction_type == "v_prediction": + x0_pred = alpha_t * sample - sigma_t * model_output + elif self.config.prediction_type == "flow_prediction": + sigma_t = self.sigmas[self.step_index] + x0_pred = sample - sigma_t * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, " + "`v_prediction`, or `flow_prediction` for the DEISMultistepScheduler." + ) + + if self.config.thresholding: + x0_pred = self._threshold_sample(x0_pred) + + if self.config.algorithm_type == "deis": + return (sample - alpha_t * x0_pred) / sigma_t + else: + raise NotImplementedError("only support log-rho multistep deis now") + + def deis_first_order_update( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the first-order DEIS (equivalent to DDIM). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + prev_timestep (`int`): + The previous discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s = self.sigmas[self.step_index + 1], self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s, sigma_s = self._sigma_to_alpha_sigma_t(sigma_s) + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s = torch.log(alpha_s) - torch.log(sigma_s) + + h = lambda_t - lambda_s + if self.config.algorithm_type == "deis": + x_t = (alpha_t / alpha_s) * sample - (sigma_t * (torch.exp(h) - 1.0)) * model_output + else: + raise NotImplementedError("only support log-rho multistep deis now") + return x_t + + def multistep_deis_second_order_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the second-order multistep DEIS. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s0, sigma_s1 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + + m0, m1 = model_output_list[-1], model_output_list[-2] + + rho_t, rho_s0, rho_s1 = sigma_t / alpha_t, sigma_s0 / alpha_s0, sigma_s1 / alpha_s1 + + if self.config.algorithm_type == "deis": + + def ind_fn(t, b, c): + # Integrate[(log(t) - log(c)) / (log(b) - log(c)), {t}] + return t * (-np.log(c) + np.log(t) - 1) / (np.log(b) - np.log(c)) + + coef1 = ind_fn(rho_t, rho_s0, rho_s1) - ind_fn(rho_s0, rho_s0, rho_s1) + coef2 = ind_fn(rho_t, rho_s1, rho_s0) - ind_fn(rho_s0, rho_s1, rho_s0) + + x_t = alpha_t * (sample / alpha_s0 + coef1 * m0 + coef2 * m1) + return x_t + else: + raise NotImplementedError("only support log-rho multistep deis now") + + def multistep_deis_third_order_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the third-order multistep DEIS. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s0, sigma_s1, sigma_s2 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + self.sigmas[self.step_index - 2], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + alpha_s2, sigma_s2 = self._sigma_to_alpha_sigma_t(sigma_s2) + + m0, m1, m2 = model_output_list[-1], model_output_list[-2], model_output_list[-3] + + rho_t, rho_s0, rho_s1, rho_s2 = ( + sigma_t / alpha_t, + sigma_s0 / alpha_s0, + sigma_s1 / alpha_s1, + sigma_s2 / alpha_s2, + ) + + if self.config.algorithm_type == "deis": + + def ind_fn(t, b, c, d): + # Integrate[(log(t) - log(c))(log(t) - log(d)) / (log(b) - log(c))(log(b) - log(d)), {t}] + numerator = t * ( + np.log(c) * (np.log(d) - np.log(t) + 1) + - np.log(d) * np.log(t) + + np.log(d) + + np.log(t) ** 2 + - 2 * np.log(t) + + 2 + ) + denominator = (np.log(b) - np.log(c)) * (np.log(b) - np.log(d)) + return numerator / denominator + + coef1 = ind_fn(rho_t, rho_s0, rho_s1, rho_s2) - ind_fn(rho_s0, rho_s0, rho_s1, rho_s2) + coef2 = ind_fn(rho_t, rho_s1, rho_s2, rho_s0) - ind_fn(rho_s0, rho_s1, rho_s2, rho_s0) + coef3 = ind_fn(rho_t, rho_s2, rho_s0, rho_s1) - ind_fn(rho_s0, rho_s2, rho_s0, rho_s1) + + x_t = alpha_t * (sample / alpha_s0 + coef1 * m0 + coef2 * m1 + coef3 * m2) + + return x_t + else: + raise NotImplementedError("only support log-rho multistep deis now") + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.index_for_timestep + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + index_candidates = (schedule_timesteps == timestep).nonzero() + + if len(index_candidates) == 0: + step_index = len(self.timesteps) - 1 + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + + return step_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._init_step_index + def _init_step_index(self, timestep): + """ + Initialize the step_index counter for the scheduler. + """ + + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[int, torch.Tensor], + sample: torch.Tensor, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the multistep DEIS. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + lower_order_final = ( + (self.step_index == len(self.timesteps) - 1) and self.config.lower_order_final and len(self.timesteps) < 15 + ) + lower_order_second = ( + (self.step_index == len(self.timesteps) - 2) and self.config.lower_order_final and len(self.timesteps) < 15 + ) + + model_output = self.convert_model_output(model_output, sample=sample) + for i in range(self.config.solver_order - 1): + self.model_outputs[i] = self.model_outputs[i + 1] + self.model_outputs[-1] = model_output + + if self.config.solver_order == 1 or self.lower_order_nums < 1 or lower_order_final: + prev_sample = self.deis_first_order_update(model_output, sample=sample) + elif self.config.solver_order == 2 or self.lower_order_nums < 2 or lower_order_second: + prev_sample = self.multistep_deis_second_order_update(self.model_outputs, sample=sample) + else: + prev_sample = self.multistep_deis_third_order_update(self.model_outputs, sample=sample) + + if self.lower_order_nums < self.config.solver_order: + self.lower_order_nums += 1 + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def scale_model_input(self, sample: torch.Tensor, *args, **kwargs) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # begin_index is None when the scheduler is used for training or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + noisy_samples = alpha_t * original_samples + sigma_t * noise + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpm_cogvideox.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpm_cogvideox.py new file mode 100644 index 0000000000000000000000000000000000000000..c5d79b5fe54ae7f1bb8d02ddbd32614c033879cc --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpm_cogvideox.py @@ -0,0 +1,521 @@ +# Copyright 2025 The CogVideoX team, Tsinghua University & ZhipuAI and The HuggingFace Team. +# All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->DDIM +class DDIMSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +def rescale_zero_terminal_snr(alphas_cumprod): + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + + Args: + betas (`torch.Tensor`): + the betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: rescaled betas with zero terminal SNR + """ + + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + + return alphas_bar + + +class CogVideoXDPMScheduler(SchedulerMixin, ConfigMixin): + """ + `DDIMScheduler` extends the denoising procedure introduced in denoising diffusion probabilistic models (DDPMs) with + non-Markovian guidance. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample for numerical stability. + clip_sample_range (`float`, defaults to 1.0): + The maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + set_alpha_to_one (`bool`, defaults to `True`): + Each diffusion step uses the alphas product value at that step and at the previous one. For the final step + there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the alpha value at step 0. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True`. + timestep_spacing (`str`, defaults to `"leading"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.00085, + beta_end: float = 0.0120, + beta_schedule: str = "scaled_linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + clip_sample: bool = True, + set_alpha_to_one: bool = True, + steps_offset: int = 0, + prediction_type: str = "epsilon", + clip_sample_range: float = 1.0, + sample_max_value: float = 1.0, + timestep_spacing: str = "leading", + rescale_betas_zero_snr: bool = False, + snr_shift_scale: float = 3.0, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float64) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # Modify: SNR shift following SD3 + self.alphas_cumprod = self.alphas_cumprod / (snr_shift_scale + (1 - snr_shift_scale) * self.alphas_cumprod) + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.alphas_cumprod = rescale_zero_terminal_snr(self.alphas_cumprod) + + # At every step in ddim, we are looking into the previous alphas_cumprod + # For the final step, there is no previous alphas_cumprod because we are already at 0 + # `set_alpha_to_one` decides whether we set this parameter simply to one or + # whether we use the final alpha of the "non-previous" one. + self.final_alpha_cumprod = torch.tensor(1.0) if set_alpha_to_one else self.alphas_cumprod[0] + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy().astype(np.int64)) + + def _get_variance(self, timestep, prev_timestep): + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + variance = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + + return variance + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + """ + + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + self.num_inference_steps = num_inference_steps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps) + .round()[::-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.round(np.arange(self.config.num_train_timesteps, 0, -step_ratio)).astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'leading' or 'trailing'." + ) + + self.timesteps = torch.from_numpy(timesteps).to(device) + + def get_variables(self, alpha_prod_t, alpha_prod_t_prev, alpha_prod_t_back=None): + lamb = ((alpha_prod_t / (1 - alpha_prod_t)) ** 0.5).log() + lamb_next = ((alpha_prod_t_prev / (1 - alpha_prod_t_prev)) ** 0.5).log() + h = lamb_next - lamb + + if alpha_prod_t_back is not None: + lamb_previous = ((alpha_prod_t_back / (1 - alpha_prod_t_back)) ** 0.5).log() + h_last = lamb - lamb_previous + r = h_last / h + return h, r, lamb, lamb_next + else: + return h, None, lamb, lamb_next + + def get_mult(self, h, r, alpha_prod_t, alpha_prod_t_prev, alpha_prod_t_back): + mult1 = ((1 - alpha_prod_t_prev) / (1 - alpha_prod_t)) ** 0.5 * (-h).exp() + mult2 = (-2 * h).expm1() * alpha_prod_t_prev**0.5 + + if alpha_prod_t_back is not None: + mult3 = 1 + 1 / (2 * r) + mult4 = 1 / (2 * r) + return mult1, mult2, mult3, mult4 + else: + return mult1, mult2 + + def step( + self, + model_output: torch.Tensor, + old_pred_original_sample: torch.Tensor, + timestep: int, + timestep_back: int, + sample: torch.Tensor, + eta: float = 0.0, + use_clipped_model_output: bool = False, + generator=None, + variance_noise: Optional[torch.Tensor] = None, + return_dict: bool = False, + ) -> Union[DDIMSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + eta (`float`): + The weight of noise for added noise in diffusion step. + use_clipped_model_output (`bool`, defaults to `False`): + If `True`, computes "corrected" `model_output` from the clipped predicted original sample. Necessary + because predicted original sample is clipped to [-1, 1] when `self.config.clip_sample` is `True`. If no + clipping has happened, "corrected" `model_output` would coincide with the one provided as input and + `use_clipped_model_output` has no effect. + generator (`torch.Generator`, *optional*): + A random number generator. + variance_noise (`torch.Tensor`): + Alternative to generating noise with `generator` by directly providing the noise for the variance + itself. Useful for methods such as [`CycleDiffusion`]. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_ddim.DDIMSchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + # See formulas (12) and (16) of DDIM paper https://huggingface.co/papers/2010.02502 + # Ideally, read DDIM paper in-detail understanding + + # Notation ( -> + # - pred_noise_t -> e_theta(x_t, t) + # - pred_original_sample -> f_theta(x_t, t) or x_0 + # - std_dev_t -> sigma_t + # - eta -> η + # - pred_sample_direction -> "direction pointing to x_t" + # - pred_prev_sample -> "x_t-1" + + # 1. get previous step value (=t-1) + prev_timestep = timestep - self.config.num_train_timesteps // self.num_inference_steps + + # 2. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + alpha_prod_t_back = self.alphas_cumprod[timestep_back] if timestep_back is not None else None + + beta_prod_t = 1 - alpha_prod_t + + # 3. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (12) from https://huggingface.co/papers/2010.02502 + # To make style tests pass, commented out `pred_epsilon` as it is an unused variable + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + # pred_epsilon = model_output + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + # pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + elif self.config.prediction_type == "v_prediction": + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + # pred_epsilon = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction`" + ) + + h, r, lamb, lamb_next = self.get_variables(alpha_prod_t, alpha_prod_t_prev, alpha_prod_t_back) + mult = list(self.get_mult(h, r, alpha_prod_t, alpha_prod_t_prev, alpha_prod_t_back)) + mult_noise = (1 - alpha_prod_t_prev) ** 0.5 * (1 - (-2 * h).exp()) ** 0.5 + + noise = randn_tensor(sample.shape, generator=generator, device=sample.device, dtype=sample.dtype) + prev_sample = mult[0] * sample - mult[1] * pred_original_sample + mult_noise * noise + + if old_pred_original_sample is None or prev_timestep < 0: + # Save a network evaluation if all noise levels are 0 or on the first step + return prev_sample, pred_original_sample + else: + denoised_d = mult[2] * pred_original_sample - mult[3] * old_pred_original_sample + noise = randn_tensor(sample.shape, generator=generator, device=sample.device, dtype=sample.dtype) + x_advanced = mult[0] * sample - mult[1] * denoised_d + mult_noise * noise + + prev_sample = x_advanced + + if not return_dict: + return (prev_sample, pred_original_sample) + + return DDIMSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.get_velocity + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.IntTensor) -> torch.Tensor: + """ + Compute the velocity prediction from the sample and noise according to the velocity formula. + + Args: + sample (`torch.Tensor`): + The input sample. + noise (`torch.Tensor`): + The noise tensor. + timesteps (`torch.IntTensor`): + The timesteps for velocity computation. + + Returns: + `torch.Tensor`: + The computed velocity. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as sample + self.alphas_cumprod = self.alphas_cumprod.to(device=sample.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=sample.dtype) + timesteps = timesteps.to(sample.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep.py new file mode 100644 index 0000000000000000000000000000000000000000..dee97f39ff68e1d56ce500d38c83fe86c865d558 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep.py @@ -0,0 +1,1242 @@ +# Copyright 2025 TSAIL Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/LuChengTHU/dpm-solver + +import math +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import deprecate, is_scipy_available +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin, SchedulerOutput + + +if is_scipy_available(): + import scipy.stats + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas): + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class DPMSolverMultistepScheduler(SchedulerMixin, ConfigMixin): + """ + `DPMSolverMultistepScheduler` is a fast dedicated high-order solver for diffusion ODEs. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + solver_order (`int`, defaults to 2): + The DPMSolver order which can be `1` or `2` or `3`. It is recommended to use `solver_order=2` for guided + sampling, and `solver_order=3` for unconditional sampling. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample), `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper), or `flow_prediction`. + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True` and + `algorithm_type="dpmsolver++"`. + algorithm_type (`str`, defaults to `dpmsolver++`): + Algorithm type for the solver; can be `dpmsolver`, `dpmsolver++`, `sde-dpmsolver` or `sde-dpmsolver++`. The + `dpmsolver` type implements the algorithms in the [DPMSolver](https://huggingface.co/papers/2206.00927) + paper, and the `dpmsolver++` type implements the algorithms in the + [DPMSolver++](https://huggingface.co/papers/2211.01095) paper. It is recommended to use `dpmsolver++` or + `sde-dpmsolver++` with `solver_order=2` for guided sampling like in Stable Diffusion. + solver_type (`str`, defaults to `midpoint`): + Solver type for the second-order solver; can be `midpoint` or `heun`. The solver type slightly affects the + sample quality, especially for a small number of steps. It is recommended to use `midpoint` solvers. + lower_order_final (`bool`, defaults to `True`): + Whether to use lower-order solvers in the final steps. Only valid for < 15 inference steps. This can + stabilize the sampling of DPMSolver for steps < 15, especially for steps <= 10. + euler_at_final (`bool`, defaults to `False`): + Whether to use Euler's method in the final step. It is a trade-off between numerical stability and detail + richness. This can stabilize the sampling of the SDE variant of DPMSolver for small number of inference + steps, but sometimes may result in blurring. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + use_lu_lambdas (`bool`, *optional*, defaults to `False`): + Whether to use the uniform-logSNR for step sizes proposed by Lu's DPM-Solver in the noise schedule during + the sampling process. If `True`, the sigmas and time steps are determined according to a sequence of + `lambda(t)`. + use_flow_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use flow sigmas for step sizes in the noise schedule during the sampling process. + flow_shift (`float`, *optional*, defaults to 1.0): + The shift value for the timestep schedule for flow matching. + final_sigmas_type (`str`, defaults to `"zero"`): + The final `sigma` value for the noise schedule during the sampling process. If `"sigma_min"`, the final + sigma is the same as the last sigma in the training schedule. If `zero`, the final sigma is set to 0. + lambda_min_clipped (`float`, defaults to `-inf`): + Clipping threshold for the minimum value of `lambda(t)` for numerical stability. This is critical for the + cosine (`squaredcos_cap_v2`) noise schedule. + variance_type (`str`, *optional*): + Set to "learned" or "learned_range" for diffusion models that predict variance. If set, the model's output + contains the predicted Gaussian variance. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + solver_order: int = 2, + prediction_type: str = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + algorithm_type: str = "dpmsolver++", + solver_type: str = "midpoint", + lower_order_final: bool = True, + euler_at_final: bool = False, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + use_lu_lambdas: Optional[bool] = False, + use_flow_sigmas: Optional[bool] = False, + flow_shift: Optional[float] = 1.0, + final_sigmas_type: Optional[str] = "zero", # "zero", "sigma_min" + lambda_min_clipped: float = -float("inf"), + variance_type: Optional[str] = None, + timestep_spacing: str = "linspace", + steps_offset: int = 0, + rescale_betas_zero_snr: bool = False, + use_dynamic_shifting: bool = False, + time_shift_type: str = "exponential", + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if algorithm_type in ["dpmsolver", "sde-dpmsolver"]: + deprecation_message = f"algorithm_type {algorithm_type} is deprecated and will be removed in a future version. Choose from `dpmsolver++` or `sde-dpmsolver++` instead" + deprecate("algorithm_types dpmsolver and sde-dpmsolver", "1.0.0", deprecation_message) + + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + if rescale_betas_zero_snr: + # Close to 0 without being 0 so first sigma is not inf + # FP16 smallest positive subnormal works well here + self.alphas_cumprod[-1] = 2**-24 + + # Currently we only support VP-type noise schedule + self.alpha_t = torch.sqrt(self.alphas_cumprod) + self.sigma_t = torch.sqrt(1 - self.alphas_cumprod) + self.lambda_t = torch.log(self.alpha_t) - torch.log(self.sigma_t) + self.sigmas = ((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5 + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # settings for DPM-Solver + if algorithm_type not in ["dpmsolver", "dpmsolver++", "sde-dpmsolver", "sde-dpmsolver++"]: + if algorithm_type == "deis": + self.register_to_config(algorithm_type="dpmsolver++") + else: + raise NotImplementedError(f"{algorithm_type} is not implemented for {self.__class__}") + + if solver_type not in ["midpoint", "heun"]: + if solver_type in ["logrho", "bh1", "bh2"]: + self.register_to_config(solver_type="midpoint") + else: + raise NotImplementedError(f"{solver_type} is not implemented for {self.__class__}") + + if algorithm_type not in ["dpmsolver++", "sde-dpmsolver++"] and final_sigmas_type == "zero": + raise ValueError( + f"`final_sigmas_type` {final_sigmas_type} is not supported for `algorithm_type` {algorithm_type}. Please choose `sigma_min` instead." + ) + + # setable values + self.num_inference_steps = None + timesteps = np.linspace(0, num_train_timesteps - 1, num_train_timesteps, dtype=np.float32)[::-1].copy() + self.timesteps = torch.from_numpy(timesteps) + self.model_outputs = [None] * solver_order + self.lower_order_nums = 0 + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_timesteps( + self, + num_inference_steps: int = None, + device: Union[str, torch.device] = None, + mu: Optional[float] = None, + timesteps: Optional[List[int]] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary timesteps schedule. If `None`, timesteps will be generated + based on the `timestep_spacing` attribute. If `timesteps` is passed, `num_inference_steps` and `sigmas` + must be `None`, and `timestep_spacing` attribute will be ignored. + """ + if mu is not None: + assert self.config.use_dynamic_shifting and self.config.time_shift_type == "exponential" + self.config.flow_shift = np.exp(mu) + if num_inference_steps is None and timesteps is None: + raise ValueError("Must pass exactly one of `num_inference_steps` or `timesteps`.") + if num_inference_steps is not None and timesteps is not None: + raise ValueError("Can only pass one of `num_inference_steps` or `custom_timesteps`.") + if timesteps is not None and self.config.use_karras_sigmas: + raise ValueError("Cannot use `timesteps` with `config.use_karras_sigmas = True`") + if timesteps is not None and self.config.use_lu_lambdas: + raise ValueError("Cannot use `timesteps` with `config.use_lu_lambdas = True`") + if timesteps is not None and self.config.use_exponential_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_exponential_sigmas = True`.") + if timesteps is not None and self.config.use_beta_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_beta_sigmas = True`.") + + if timesteps is not None: + timesteps = np.array(timesteps).astype(np.int64) + else: + # Clipping the minimum of all lambda(t) for numerical stability. + # This is critical for cosine (squaredcos_cap_v2) noise schedule. + clipped_idx = torch.searchsorted(torch.flip(self.lambda_t, [0]), self.config.lambda_min_clipped) + last_timestep = ((self.config.num_train_timesteps - clipped_idx).numpy()).item() + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, last_timestep - 1, num_inference_steps + 1) + .round()[::-1][:-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = last_timestep // (num_inference_steps + 1) + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = ( + (np.arange(0, num_inference_steps + 1) * step_ratio).round()[::-1][:-1].copy().astype(np.int64) + ) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.arange(last_timestep, 0, -step_ratio).round().copy().astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + + if self.config.use_karras_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + if self.config.beta_schedule != "squaredcos_cap_v2": + timesteps = timesteps.round() + elif self.config.use_lu_lambdas: + lambdas = np.flip(log_sigmas.copy()) + lambdas = self._convert_to_lu(in_lambdas=lambdas, num_inference_steps=num_inference_steps) + sigmas = np.exp(lambdas) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + if self.config.beta_schedule != "squaredcos_cap_v2": + timesteps = timesteps.round() + elif self.config.use_exponential_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_beta_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_flow_sigmas: + alphas = np.linspace(1, 1 / self.config.num_train_timesteps, num_inference_steps + 1) + sigmas = 1.0 - alphas + sigmas = np.flip(self.config.flow_shift * sigmas / (1 + (self.config.flow_shift - 1) * sigmas))[:-1].copy() + timesteps = (sigmas * self.config.num_train_timesteps).copy() + else: + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + + if self.config.final_sigmas_type == "sigma_min": + sigma_last = ((1 - self.alphas_cumprod[0]) / self.alphas_cumprod[0]) ** 0.5 + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + + self.sigmas = torch.from_numpy(sigmas) + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.int64) + + self.num_inference_steps = len(timesteps) + + self.model_outputs = [ + None, + ] * self.config.solver_order + self.lower_order_nums = 0 + + # add an index counter for schedulers that allow duplicated timesteps + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + def _sigma_to_alpha_sigma_t(self, sigma): + if self.config.use_flow_sigmas: + alpha_t = 1 - sigma + sigma_t = sigma + else: + alpha_t = 1 / ((sigma**2 + 1) ** 0.5) + sigma_t = sigma * alpha_t + + return alpha_t, sigma_t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + def _convert_to_lu(self, in_lambdas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """Constructs the noise schedule of Lu et al. (2022).""" + + lambda_min: float = in_lambdas[-1].item() + lambda_max: float = in_lambdas[0].item() + + rho = 1.0 # 1.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = lambda_min ** (1 / rho) + max_inv_rho = lambda_max ** (1 / rho) + lambdas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return lambdas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def convert_model_output( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + """ + Convert the model output to the corresponding type the DPMSolver/DPMSolver++ algorithm needs. DPM-Solver is + designed to discretize an integral of the noise prediction model, and DPM-Solver++ is designed to discretize an + integral of the data prediction model. + + > [!TIP] > The algorithm and model type are decoupled. You can use either DPMSolver or DPMSolver++ for both + noise > prediction and data prediction models. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The converted model output. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + if sample is None: + if len(args) > 1: + sample = args[1] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + # DPM-Solver++ needs to solve an integral of the data prediction model. + if self.config.algorithm_type in ["dpmsolver++", "sde-dpmsolver++"]: + if self.config.prediction_type == "epsilon": + # DPM-Solver and DPM-Solver++ only need the "mean" output. + if self.config.variance_type in ["learned", "learned_range"]: + model_output = model_output[:, :3] + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + x0_pred = (sample - sigma_t * model_output) / alpha_t + elif self.config.prediction_type == "sample": + x0_pred = model_output + elif self.config.prediction_type == "v_prediction": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + x0_pred = alpha_t * sample - sigma_t * model_output + elif self.config.prediction_type == "flow_prediction": + sigma_t = self.sigmas[self.step_index] + x0_pred = sample - sigma_t * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, " + "`v_prediction`, or `flow_prediction` for the DPMSolverMultistepScheduler." + ) + + if self.config.thresholding: + x0_pred = self._threshold_sample(x0_pred) + + return x0_pred + + # DPM-Solver needs to solve an integral of the noise prediction model. + elif self.config.algorithm_type in ["dpmsolver", "sde-dpmsolver"]: + if self.config.prediction_type == "epsilon": + # DPM-Solver and DPM-Solver++ only need the "mean" output. + if self.config.variance_type in ["learned", "learned_range"]: + epsilon = model_output[:, :3] + else: + epsilon = model_output + elif self.config.prediction_type == "sample": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + epsilon = (sample - alpha_t * model_output) / sigma_t + elif self.config.prediction_type == "v_prediction": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + epsilon = alpha_t * model_output + sigma_t * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction` for the DPMSolverMultistepScheduler." + ) + + if self.config.thresholding: + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + x0_pred = (sample - sigma_t * epsilon) / alpha_t + x0_pred = self._threshold_sample(x0_pred) + epsilon = (sample - alpha_t * x0_pred) / sigma_t + + return epsilon + + def dpm_solver_first_order_update( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the first-order DPMSolver (equivalent to DDIM). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s = self.sigmas[self.step_index + 1], self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s, sigma_s = self._sigma_to_alpha_sigma_t(sigma_s) + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s = torch.log(alpha_s) - torch.log(sigma_s) + + h = lambda_t - lambda_s + if self.config.algorithm_type == "dpmsolver++": + x_t = (sigma_t / sigma_s) * sample - (alpha_t * (torch.exp(-h) - 1.0)) * model_output + elif self.config.algorithm_type == "dpmsolver": + x_t = (alpha_t / alpha_s) * sample - (sigma_t * (torch.exp(h) - 1.0)) * model_output + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + x_t = ( + (sigma_t / sigma_s * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * model_output + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.algorithm_type == "sde-dpmsolver": + assert noise is not None + x_t = ( + (alpha_t / alpha_s) * sample + - 2.0 * (sigma_t * (torch.exp(h) - 1.0)) * model_output + + sigma_t * torch.sqrt(torch.exp(2 * h) - 1.0) * noise + ) + return x_t + + def multistep_dpm_solver_second_order_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the second-order multistep DPMSolver. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s0, sigma_s1 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + + m0, m1 = model_output_list[-1], model_output_list[-2] + + h, h_0 = lambda_t - lambda_s0, lambda_s0 - lambda_s1 + r0 = h_0 / h + D0, D1 = m0, (1.0 / r0) * (m0 - m1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2211.01095 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + - 0.5 * (alpha_t * (torch.exp(-h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1 + ) + elif self.config.algorithm_type == "dpmsolver": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - 0.5 * (sigma_t * (torch.exp(h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1 + ) + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + 0.5 * (alpha_t * (1 - torch.exp(-2.0 * h))) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.algorithm_type == "sde-dpmsolver": + assert noise is not None + if self.config.solver_type == "midpoint": + x_t = ( + (alpha_t / alpha_s0) * sample + - 2.0 * (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * (torch.exp(h) - 1.0)) * D1 + + sigma_t * torch.sqrt(torch.exp(2 * h) - 1.0) * noise + ) + elif self.config.solver_type == "heun": + x_t = ( + (alpha_t / alpha_s0) * sample + - 2.0 * (sigma_t * (torch.exp(h) - 1.0)) * D0 + - 2.0 * (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1 + + sigma_t * torch.sqrt(torch.exp(2 * h) - 1.0) * noise + ) + return x_t + + def multistep_dpm_solver_third_order_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the third-order multistep DPMSolver. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s0, sigma_s1, sigma_s2 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + self.sigmas[self.step_index - 2], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + alpha_s2, sigma_s2 = self._sigma_to_alpha_sigma_t(sigma_s2) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + lambda_s2 = torch.log(alpha_s2) - torch.log(sigma_s2) + + m0, m1, m2 = model_output_list[-1], model_output_list[-2], model_output_list[-3] + + h, h_0, h_1 = lambda_t - lambda_s0, lambda_s0 - lambda_s1, lambda_s1 - lambda_s2 + r0, r1 = h_0 / h, h_1 / h + D0 = m0 + D1_0, D1_1 = (1.0 / r0) * (m0 - m1), (1.0 / r1) * (m1 - m2) + D1 = D1_0 + (r0 / (r0 + r1)) * (D1_0 - D1_1) + D2 = (1.0 / (r0 + r1)) * (D1_0 - D1_1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1 + - (alpha_t * ((torch.exp(-h) - 1.0 + h) / h**2 - 0.5)) * D2 + ) + elif self.config.algorithm_type == "dpmsolver": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1 + - (sigma_t * ((torch.exp(h) - 1.0 - h) / h**2 - 0.5)) * D2 + ) + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1.0 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h) - 2.0 * h) / (2.0 * h) ** 2 - 0.5)) * D2 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + return x_t + + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + index_candidates = (schedule_timesteps == timestep).nonzero() + + if len(index_candidates) == 0: + step_index = len(self.timesteps) - 1 + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + + return step_index + + def _init_step_index(self, timestep): + """ + Initialize the step_index counter for the scheduler. + """ + + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[int, torch.Tensor], + sample: torch.Tensor, + generator=None, + variance_noise: Optional[torch.Tensor] = None, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the multistep DPMSolver. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + variance_noise (`torch.Tensor`): + Alternative to generating noise with `generator` by directly providing the noise for the variance + itself. Useful for methods such as [`LEdits++`]. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # Improve numerical stability for small number of steps + lower_order_final = (self.step_index == len(self.timesteps) - 1) and ( + self.config.euler_at_final + or (self.config.lower_order_final and len(self.timesteps) < 15) + or self.config.final_sigmas_type == "zero" + ) + lower_order_second = ( + (self.step_index == len(self.timesteps) - 2) and self.config.lower_order_final and len(self.timesteps) < 15 + ) + + model_output = self.convert_model_output(model_output, sample=sample) + for i in range(self.config.solver_order - 1): + self.model_outputs[i] = self.model_outputs[i + 1] + self.model_outputs[-1] = model_output + + # Upcast to avoid precision issues when computing prev_sample + sample = sample.to(torch.float32) + if self.config.algorithm_type in ["sde-dpmsolver", "sde-dpmsolver++"] and variance_noise is None: + noise = randn_tensor( + model_output.shape, generator=generator, device=model_output.device, dtype=torch.float32 + ) + elif self.config.algorithm_type in ["sde-dpmsolver", "sde-dpmsolver++"]: + noise = variance_noise.to(device=model_output.device, dtype=torch.float32) + else: + noise = None + + if self.config.solver_order == 1 or self.lower_order_nums < 1 or lower_order_final: + prev_sample = self.dpm_solver_first_order_update(model_output, sample=sample, noise=noise) + elif self.config.solver_order == 2 or self.lower_order_nums < 2 or lower_order_second: + prev_sample = self.multistep_dpm_solver_second_order_update(self.model_outputs, sample=sample, noise=noise) + else: + prev_sample = self.multistep_dpm_solver_third_order_update(self.model_outputs, sample=sample, noise=noise) + + if self.lower_order_nums < self.config.solver_order: + self.lower_order_nums += 1 + + # Cast sample back to expected dtype + prev_sample = prev_sample.to(model_output.dtype) + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def scale_model_input(self, sample: torch.Tensor, *args, **kwargs) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # begin_index is None when the scheduler is used for training or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + noisy_samples = alpha_t * original_samples + sigma_t * noise + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..71b9960bf2ff21d116caffce05c986d8b3a898e4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep_flax.py @@ -0,0 +1,645 @@ +# Copyright 2025 TSAIL Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/LuChengTHU/dpm-solver + +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import flax +import jax +import jax.numpy as jnp + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils_flax import ( + CommonSchedulerState, + FlaxKarrasDiffusionSchedulers, + FlaxSchedulerMixin, + FlaxSchedulerOutput, + add_noise_common, +) + + +@flax.struct.dataclass +class DPMSolverMultistepSchedulerState: + common: CommonSchedulerState + alpha_t: jnp.ndarray + sigma_t: jnp.ndarray + lambda_t: jnp.ndarray + + # setable values + init_noise_sigma: jnp.ndarray + timesteps: jnp.ndarray + num_inference_steps: Optional[int] = None + + # running values + model_outputs: Optional[jnp.ndarray] = None + lower_order_nums: Optional[jnp.int32] = None + prev_timestep: Optional[jnp.int32] = None + cur_sample: Optional[jnp.ndarray] = None + + @classmethod + def create( + cls, + common: CommonSchedulerState, + alpha_t: jnp.ndarray, + sigma_t: jnp.ndarray, + lambda_t: jnp.ndarray, + init_noise_sigma: jnp.ndarray, + timesteps: jnp.ndarray, + ): + return cls( + common=common, + alpha_t=alpha_t, + sigma_t=sigma_t, + lambda_t=lambda_t, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + ) + + +@dataclass +class FlaxDPMSolverMultistepSchedulerOutput(FlaxSchedulerOutput): + state: DPMSolverMultistepSchedulerState + + +class FlaxDPMSolverMultistepScheduler(FlaxSchedulerMixin, ConfigMixin): + """ + DPM-Solver (and the improved version DPM-Solver++) is a fast dedicated high-order solver for diffusion ODEs with + the convergence order guarantee. Empirically, sampling by DPM-Solver with only 20 steps can generate high-quality + samples, and it can generate quite good samples even in only 10 steps. + + For more details, see the original paper: https://huggingface.co/papers/2206.00927 and + https://huggingface.co/papers/2211.01095 + + Currently, we support the multistep DPM-Solver for both noise prediction models and data prediction models. We + recommend to use `solver_order=2` for guided sampling, and `solver_order=3` for unconditional sampling. + + We also support the "dynamic thresholding" method in Imagen (https://huggingface.co/papers/2205.11487). For + pixel-space diffusion models, you can set both `algorithm_type="dpmsolver++"` and `thresholding=True` to use the + dynamic thresholding. Note that the thresholding method is unsuitable for latent-space diffusion models (such as + stable-diffusion). + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + For more details, see the original paper: https://huggingface.co/papers/2206.00927 and + https://huggingface.co/papers/2211.01095 + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + beta_start (`float`): the starting `beta` value of inference. + beta_end (`float`): the final `beta` value. + beta_schedule (`str`): + the beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, optional): + option to pass an array of betas directly to the constructor to bypass `beta_start`, `beta_end` etc. + solver_order (`int`, default `2`): + the order of DPM-Solver; can be `1` or `2` or `3`. We recommend to use `solver_order=2` for guided + sampling, and `solver_order=3` for unconditional sampling. + prediction_type (`str`, default `epsilon`): + indicates whether the model predicts the noise (epsilon), or the data / `x0`. One of `epsilon`, `sample`, + or `v-prediction`. + thresholding (`bool`, default `False`): + whether to use the "dynamic thresholding" method (introduced by Imagen, + https://huggingface.co/papers/2205.11487). For pixel-space diffusion models, you can set both + `algorithm_type=dpmsolver++` and `thresholding=True` to use the dynamic thresholding. Note that the + thresholding method is unsuitable for latent-space diffusion models (such as stable-diffusion). + dynamic_thresholding_ratio (`float`, default `0.995`): + the ratio for the dynamic thresholding method. Default is `0.995`, the same as Imagen + (https://huggingface.co/papers/2205.11487). + sample_max_value (`float`, default `1.0`): + the threshold value for dynamic thresholding. Valid only when `thresholding=True` and + `algorithm_type="dpmsolver++`. + algorithm_type (`str`, default `dpmsolver++`): + the algorithm type for the solver. Either `dpmsolver` or `dpmsolver++`. The `dpmsolver` type implements the + algorithms in https://huggingface.co/papers/2206.00927, and the `dpmsolver++` type implements the + algorithms in https://huggingface.co/papers/2211.01095. We recommend to use `dpmsolver++` with + `solver_order=2` for guided sampling (e.g. stable-diffusion). + solver_type (`str`, default `midpoint`): + the solver type for the second-order solver. Either `midpoint` or `heun`. The solver type slightly affects + the sample quality, especially for small number of steps. We empirically find that `midpoint` solvers are + slightly better, so we recommend to use the `midpoint` type. + lower_order_final (`bool`, default `True`): + whether to use lower-order solvers in the final steps. Only valid for < 15 inference steps. We empirically + find this trick can stabilize the sampling of DPM-Solver for steps < 15, especially for steps <= 10. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + dtype (`jnp.dtype`, *optional*, defaults to `jnp.float32`): + the `dtype` used for params and computation. + """ + + _compatibles = [e.name for e in FlaxKarrasDiffusionSchedulers] + + dtype: jnp.dtype + + @property + def has_state(self): + return True + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[jnp.ndarray] = None, + solver_order: int = 2, + prediction_type: str = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + algorithm_type: str = "dpmsolver++", + solver_type: str = "midpoint", + lower_order_final: bool = True, + timestep_spacing: str = "linspace", + dtype: jnp.dtype = jnp.float32, + ): + self.dtype = dtype + + def create_state(self, common: Optional[CommonSchedulerState] = None) -> DPMSolverMultistepSchedulerState: + if common is None: + common = CommonSchedulerState.create(self) + + # Currently we only support VP-type noise schedule + alpha_t = jnp.sqrt(common.alphas_cumprod) + sigma_t = jnp.sqrt(1 - common.alphas_cumprod) + lambda_t = jnp.log(alpha_t) - jnp.log(sigma_t) + + # settings for DPM-Solver + if self.config.algorithm_type not in ["dpmsolver", "dpmsolver++"]: + raise NotImplementedError(f"{self.config.algorithm_type} is not implemented for {self.__class__}") + if self.config.solver_type not in ["midpoint", "heun"]: + raise NotImplementedError(f"{self.config.solver_type} is not implemented for {self.__class__}") + + # standard deviation of the initial noise distribution + init_noise_sigma = jnp.array(1.0, dtype=self.dtype) + + timesteps = jnp.arange(0, self.config.num_train_timesteps).round()[::-1] + + return DPMSolverMultistepSchedulerState.create( + common=common, + alpha_t=alpha_t, + sigma_t=sigma_t, + lambda_t=lambda_t, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + ) + + def set_timesteps( + self, state: DPMSolverMultistepSchedulerState, num_inference_steps: int, shape: Tuple + ) -> DPMSolverMultistepSchedulerState: + """ + Sets the discrete timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + state (`DPMSolverMultistepSchedulerState`): + the `FlaxDPMSolverMultistepScheduler` state data class instance. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + shape (`Tuple`): + the shape of the samples to be generated. + """ + last_timestep = self.config.num_train_timesteps + if self.config.timestep_spacing == "linspace": + timesteps = ( + jnp.linspace(0, last_timestep - 1, num_inference_steps + 1).round()[::-1][:-1].astype(jnp.int32) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = last_timestep // (num_inference_steps + 1) + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = ( + (jnp.arange(0, num_inference_steps + 1) * step_ratio).round()[::-1][:-1].copy().astype(jnp.int32) + ) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = jnp.arange(last_timestep, 0, -step_ratio).round().copy().astype(jnp.int32) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + # initial running values + + model_outputs = jnp.zeros((self.config.solver_order,) + shape, dtype=self.dtype) + lower_order_nums = jnp.int32(0) + prev_timestep = jnp.int32(-1) + cur_sample = jnp.zeros(shape, dtype=self.dtype) + + return state.replace( + num_inference_steps=num_inference_steps, + timesteps=timesteps, + model_outputs=model_outputs, + lower_order_nums=lower_order_nums, + prev_timestep=prev_timestep, + cur_sample=cur_sample, + ) + + def convert_model_output( + self, + state: DPMSolverMultistepSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + ) -> jnp.ndarray: + """ + Convert the model output to the corresponding type that the algorithm (DPM-Solver / DPM-Solver++) needs. + + DPM-Solver is designed to discretize an integral of the noise prediction model, and DPM-Solver++ is designed to + discretize an integral of the data prediction model. So we need to first convert the model output to the + corresponding type to match the algorithm. + + Note that the algorithm type and the model type is decoupled. That is to say, we can use either DPM-Solver or + DPM-Solver++ for both noise prediction model and data prediction model. + + Args: + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + + Returns: + `jnp.ndarray`: the converted model output. + """ + # DPM-Solver++ needs to solve an integral of the data prediction model. + if self.config.algorithm_type == "dpmsolver++": + if self.config.prediction_type == "epsilon": + alpha_t, sigma_t = state.alpha_t[timestep], state.sigma_t[timestep] + x0_pred = (sample - sigma_t * model_output) / alpha_t + elif self.config.prediction_type == "sample": + x0_pred = model_output + elif self.config.prediction_type == "v_prediction": + alpha_t, sigma_t = state.alpha_t[timestep], state.sigma_t[timestep] + x0_pred = alpha_t * sample - sigma_t * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, " + " or `v_prediction` for the FlaxDPMSolverMultistepScheduler." + ) + + if self.config.thresholding: + # Dynamic thresholding in https://huggingface.co/papers/2205.11487 + dynamic_max_val = jnp.percentile( + jnp.abs(x0_pred), self.config.dynamic_thresholding_ratio, axis=tuple(range(1, x0_pred.ndim)) + ) + dynamic_max_val = jnp.maximum( + dynamic_max_val, self.config.sample_max_value * jnp.ones_like(dynamic_max_val) + ) + x0_pred = jnp.clip(x0_pred, -dynamic_max_val, dynamic_max_val) / dynamic_max_val + return x0_pred + # DPM-Solver needs to solve an integral of the noise prediction model. + elif self.config.algorithm_type == "dpmsolver": + if self.config.prediction_type == "epsilon": + return model_output + elif self.config.prediction_type == "sample": + alpha_t, sigma_t = state.alpha_t[timestep], state.sigma_t[timestep] + epsilon = (sample - alpha_t * model_output) / sigma_t + return epsilon + elif self.config.prediction_type == "v_prediction": + alpha_t, sigma_t = state.alpha_t[timestep], state.sigma_t[timestep] + epsilon = alpha_t * model_output + sigma_t * sample + return epsilon + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, " + " or `v_prediction` for the FlaxDPMSolverMultistepScheduler." + ) + + def dpm_solver_first_order_update( + self, + state: DPMSolverMultistepSchedulerState, + model_output: jnp.ndarray, + timestep: int, + prev_timestep: int, + sample: jnp.ndarray, + ) -> jnp.ndarray: + """ + One step for the first-order DPM-Solver (equivalent to DDIM). + + See https://huggingface.co/papers/2206.00927 for the detailed derivation. + + Args: + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + prev_timestep (`int`): previous discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + + Returns: + `jnp.ndarray`: the sample tensor at the previous timestep. + """ + t, s0 = prev_timestep, timestep + m0 = model_output + lambda_t, lambda_s = state.lambda_t[t], state.lambda_t[s0] + alpha_t, alpha_s = state.alpha_t[t], state.alpha_t[s0] + sigma_t, sigma_s = state.sigma_t[t], state.sigma_t[s0] + h = lambda_t - lambda_s + if self.config.algorithm_type == "dpmsolver++": + x_t = (sigma_t / sigma_s) * sample - (alpha_t * (jnp.exp(-h) - 1.0)) * m0 + elif self.config.algorithm_type == "dpmsolver": + x_t = (alpha_t / alpha_s) * sample - (sigma_t * (jnp.exp(h) - 1.0)) * m0 + return x_t + + def multistep_dpm_solver_second_order_update( + self, + state: DPMSolverMultistepSchedulerState, + model_output_list: jnp.ndarray, + timestep_list: List[int], + prev_timestep: int, + sample: jnp.ndarray, + ) -> jnp.ndarray: + """ + One step for the second-order multistep DPM-Solver. + + Args: + model_output_list (`List[jnp.ndarray]`): + direct outputs from learned diffusion model at current and latter timesteps. + timestep (`int`): current and latter discrete timestep in the diffusion chain. + prev_timestep (`int`): previous discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + + Returns: + `jnp.ndarray`: the sample tensor at the previous timestep. + """ + t, s0, s1 = prev_timestep, timestep_list[-1], timestep_list[-2] + m0, m1 = model_output_list[-1], model_output_list[-2] + lambda_t, lambda_s0, lambda_s1 = state.lambda_t[t], state.lambda_t[s0], state.lambda_t[s1] + alpha_t, alpha_s0 = state.alpha_t[t], state.alpha_t[s0] + sigma_t, sigma_s0 = state.sigma_t[t], state.sigma_t[s0] + h, h_0 = lambda_t - lambda_s0, lambda_s0 - lambda_s1 + r0 = h_0 / h + D0, D1 = m0, (1.0 / r0) * (m0 - m1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2211.01095 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (jnp.exp(-h) - 1.0)) * D0 + - 0.5 * (alpha_t * (jnp.exp(-h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (jnp.exp(-h) - 1.0)) * D0 + + (alpha_t * ((jnp.exp(-h) - 1.0) / h + 1.0)) * D1 + ) + elif self.config.algorithm_type == "dpmsolver": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (jnp.exp(h) - 1.0)) * D0 + - 0.5 * (sigma_t * (jnp.exp(h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (jnp.exp(h) - 1.0)) * D0 + - (sigma_t * ((jnp.exp(h) - 1.0) / h - 1.0)) * D1 + ) + return x_t + + def multistep_dpm_solver_third_order_update( + self, + state: DPMSolverMultistepSchedulerState, + model_output_list: jnp.ndarray, + timestep_list: List[int], + prev_timestep: int, + sample: jnp.ndarray, + ) -> jnp.ndarray: + """ + One step for the third-order multistep DPM-Solver. + + Args: + model_output_list (`List[jnp.ndarray]`): + direct outputs from learned diffusion model at current and latter timesteps. + timestep (`int`): current and latter discrete timestep in the diffusion chain. + prev_timestep (`int`): previous discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + + Returns: + `jnp.ndarray`: the sample tensor at the previous timestep. + """ + t, s0, s1, s2 = prev_timestep, timestep_list[-1], timestep_list[-2], timestep_list[-3] + m0, m1, m2 = model_output_list[-1], model_output_list[-2], model_output_list[-3] + lambda_t, lambda_s0, lambda_s1, lambda_s2 = ( + state.lambda_t[t], + state.lambda_t[s0], + state.lambda_t[s1], + state.lambda_t[s2], + ) + alpha_t, alpha_s0 = state.alpha_t[t], state.alpha_t[s0] + sigma_t, sigma_s0 = state.sigma_t[t], state.sigma_t[s0] + h, h_0, h_1 = lambda_t - lambda_s0, lambda_s0 - lambda_s1, lambda_s1 - lambda_s2 + r0, r1 = h_0 / h, h_1 / h + D0 = m0 + D1_0, D1_1 = (1.0 / r0) * (m0 - m1), (1.0 / r1) * (m1 - m2) + D1 = D1_0 + (r0 / (r0 + r1)) * (D1_0 - D1_1) + D2 = (1.0 / (r0 + r1)) * (D1_0 - D1_1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (jnp.exp(-h) - 1.0)) * D0 + + (alpha_t * ((jnp.exp(-h) - 1.0) / h + 1.0)) * D1 + - (alpha_t * ((jnp.exp(-h) - 1.0 + h) / h**2 - 0.5)) * D2 + ) + elif self.config.algorithm_type == "dpmsolver": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (jnp.exp(h) - 1.0)) * D0 + - (sigma_t * ((jnp.exp(h) - 1.0) / h - 1.0)) * D1 + - (sigma_t * ((jnp.exp(h) - 1.0 - h) / h**2 - 0.5)) * D2 + ) + return x_t + + def step( + self, + state: DPMSolverMultistepSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + return_dict: bool = True, + ) -> Union[FlaxDPMSolverMultistepSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by DPM-Solver. Core function to propagate the diffusion process + from the learned model outputs (most often the predicted noise). + + Args: + state (`DPMSolverMultistepSchedulerState`): + the `FlaxDPMSolverMultistepScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + return_dict (`bool`): option for returning tuple rather than FlaxDPMSolverMultistepSchedulerOutput class + + Returns: + [`FlaxDPMSolverMultistepSchedulerOutput`] or `tuple`: [`FlaxDPMSolverMultistepSchedulerOutput`] if + `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + if state.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + (step_index,) = jnp.where(state.timesteps == timestep, size=1) + step_index = step_index[0] + + prev_timestep = jax.lax.select(step_index == len(state.timesteps) - 1, 0, state.timesteps[step_index + 1]) + + model_output = self.convert_model_output(state, model_output, timestep, sample) + + model_outputs_new = jnp.roll(state.model_outputs, -1, axis=0) + model_outputs_new = model_outputs_new.at[-1].set(model_output) + state = state.replace( + model_outputs=model_outputs_new, + prev_timestep=prev_timestep, + cur_sample=sample, + ) + + def step_1(state: DPMSolverMultistepSchedulerState) -> jnp.ndarray: + return self.dpm_solver_first_order_update( + state, + state.model_outputs[-1], + state.timesteps[step_index], + state.prev_timestep, + state.cur_sample, + ) + + def step_23(state: DPMSolverMultistepSchedulerState) -> jnp.ndarray: + def step_2(state: DPMSolverMultistepSchedulerState) -> jnp.ndarray: + timestep_list = jnp.array([state.timesteps[step_index - 1], state.timesteps[step_index]]) + return self.multistep_dpm_solver_second_order_update( + state, + state.model_outputs, + timestep_list, + state.prev_timestep, + state.cur_sample, + ) + + def step_3(state: DPMSolverMultistepSchedulerState) -> jnp.ndarray: + timestep_list = jnp.array( + [ + state.timesteps[step_index - 2], + state.timesteps[step_index - 1], + state.timesteps[step_index], + ] + ) + return self.multistep_dpm_solver_third_order_update( + state, + state.model_outputs, + timestep_list, + state.prev_timestep, + state.cur_sample, + ) + + step_2_output = step_2(state) + step_3_output = step_3(state) + + if self.config.solver_order == 2: + return step_2_output + elif self.config.lower_order_final and len(state.timesteps) < 15: + return jax.lax.select( + state.lower_order_nums < 2, + step_2_output, + jax.lax.select( + step_index == len(state.timesteps) - 2, + step_2_output, + step_3_output, + ), + ) + else: + return jax.lax.select( + state.lower_order_nums < 2, + step_2_output, + step_3_output, + ) + + step_1_output = step_1(state) + step_23_output = step_23(state) + + if self.config.solver_order == 1: + prev_sample = step_1_output + + elif self.config.lower_order_final and len(state.timesteps) < 15: + prev_sample = jax.lax.select( + state.lower_order_nums < 1, + step_1_output, + jax.lax.select( + step_index == len(state.timesteps) - 1, + step_1_output, + step_23_output, + ), + ) + + else: + prev_sample = jax.lax.select( + state.lower_order_nums < 1, + step_1_output, + step_23_output, + ) + + state = state.replace( + lower_order_nums=jnp.minimum(state.lower_order_nums + 1, self.config.solver_order), + ) + + if not return_dict: + return (prev_sample, state) + + return FlaxDPMSolverMultistepSchedulerOutput(prev_sample=prev_sample, state=state) + + def scale_model_input( + self, state: DPMSolverMultistepSchedulerState, sample: jnp.ndarray, timestep: Optional[int] = None + ) -> jnp.ndarray: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + state (`DPMSolverMultistepSchedulerState`): + the `FlaxDPMSolverMultistepScheduler` state data class instance. + sample (`jnp.ndarray`): input sample + timestep (`int`, optional): current timestep + + Returns: + `jnp.ndarray`: scaled input sample + """ + return sample + + def add_noise( + self, + state: DPMSolverMultistepSchedulerState, + original_samples: jnp.ndarray, + noise: jnp.ndarray, + timesteps: jnp.ndarray, + ) -> jnp.ndarray: + return add_noise_common(state.common, original_samples, noise, timesteps) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep_inverse.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep_inverse.py new file mode 100644 index 0000000000000000000000000000000000000000..0f734aeb54c9c59d249d9e68097bacc4c388780d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_multistep_inverse.py @@ -0,0 +1,1089 @@ +# Copyright 2025 TSAIL Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/LuChengTHU/dpm-solver + +import math +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import deprecate, is_scipy_available +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin, SchedulerOutput + + +if is_scipy_available(): + import scipy.stats + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class DPMSolverMultistepInverseScheduler(SchedulerMixin, ConfigMixin): + """ + `DPMSolverMultistepInverseScheduler` is the reverse scheduler of [`DPMSolverMultistepScheduler`]. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + solver_order (`int`, defaults to 2): + The DPMSolver order which can be `1` or `2` or `3`. It is recommended to use `solver_order=2` for guided + sampling, and `solver_order=3` for unconditional sampling. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True` and + `algorithm_type="dpmsolver++"`. + algorithm_type (`str`, defaults to `dpmsolver++`): + Algorithm type for the solver; can be `dpmsolver`, `dpmsolver++`, `sde-dpmsolver` or `sde-dpmsolver++`. The + `dpmsolver` type implements the algorithms in the [DPMSolver](https://huggingface.co/papers/2206.00927) + paper, and the `dpmsolver++` type implements the algorithms in the + [DPMSolver++](https://huggingface.co/papers/2211.01095) paper. It is recommended to use `dpmsolver++` or + `sde-dpmsolver++` with `solver_order=2` for guided sampling like in Stable Diffusion. + solver_type (`str`, defaults to `midpoint`): + Solver type for the second-order solver; can be `midpoint` or `heun`. The solver type slightly affects the + sample quality, especially for a small number of steps. It is recommended to use `midpoint` solvers. + lower_order_final (`bool`, defaults to `True`): + Whether to use lower-order solvers in the final steps. Only valid for < 15 inference steps. This can + stabilize the sampling of DPMSolver for steps < 15, especially for steps <= 10. + euler_at_final (`bool`, defaults to `False`): + Whether to use Euler's method in the final step. It is a trade-off between numerical stability and detail + richness. This can stabilize the sampling of the SDE variant of DPMSolver for small number of inference + steps, but sometimes may result in blurring. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + lambda_min_clipped (`float`, defaults to `-inf`): + Clipping threshold for the minimum value of `lambda(t)` for numerical stability. This is critical for the + cosine (`squaredcos_cap_v2`) noise schedule. + variance_type (`str`, *optional*): + Set to "learned" or "learned_range" for diffusion models that predict variance. If set, the model's output + contains the predicted Gaussian variance. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + solver_order: int = 2, + prediction_type: str = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + algorithm_type: str = "dpmsolver++", + solver_type: str = "midpoint", + lower_order_final: bool = True, + euler_at_final: bool = False, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + use_flow_sigmas: Optional[bool] = False, + flow_shift: Optional[float] = 1.0, + lambda_min_clipped: float = -float("inf"), + variance_type: Optional[str] = None, + timestep_spacing: str = "linspace", + steps_offset: int = 0, + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if algorithm_type in ["dpmsolver", "sde-dpmsolver"]: + deprecation_message = f"algorithm_type {algorithm_type} is deprecated and will be removed in a future version. Choose from `dpmsolver++` or `sde-dpmsolver++` instead" + deprecate("algorithm_types dpmsolver and sde-dpmsolver", "1.0.0", deprecation_message) + + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + # Currently we only support VP-type noise schedule + self.alpha_t = torch.sqrt(self.alphas_cumprod) + self.sigma_t = torch.sqrt(1 - self.alphas_cumprod) + self.lambda_t = torch.log(self.alpha_t) - torch.log(self.sigma_t) + self.sigmas = ((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5 + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # settings for DPM-Solver + if algorithm_type not in ["dpmsolver", "dpmsolver++", "sde-dpmsolver", "sde-dpmsolver++"]: + if algorithm_type == "deis": + self.register_to_config(algorithm_type="dpmsolver++") + else: + raise NotImplementedError(f"{algorithm_type} is not implemented for {self.__class__}") + + if solver_type not in ["midpoint", "heun"]: + if solver_type in ["logrho", "bh1", "bh2"]: + self.register_to_config(solver_type="midpoint") + else: + raise NotImplementedError(f"{solver_type} is not implemented for {self.__class__}") + + # setable values + self.num_inference_steps = None + timesteps = np.linspace(0, num_train_timesteps - 1, num_train_timesteps, dtype=np.float32).copy() + self.timesteps = torch.from_numpy(timesteps) + self.model_outputs = [None] * solver_order + self.lower_order_nums = 0 + self._step_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + self.use_karras_sigmas = use_karras_sigmas + self.use_exponential_sigmas = use_exponential_sigmas + self.use_beta_sigmas = use_beta_sigmas + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + def set_timesteps(self, num_inference_steps: int = None, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + # Clipping the minimum of all lambda(t) for numerical stability. + # This is critical for cosine (squaredcos_cap_v2) noise schedule. + clipped_idx = torch.searchsorted(torch.flip(self.lambda_t, [0]), self.config.lambda_min_clipped).item() + self.noisiest_timestep = self.config.num_train_timesteps - 1 - clipped_idx + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.noisiest_timestep, num_inference_steps + 1).round()[:-1].copy().astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = (self.noisiest_timestep + 1) // (num_inference_steps + 1) + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps + 1) * step_ratio).round()[:-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.arange(self.noisiest_timestep + 1, 0, -step_ratio).round()[::-1].copy().astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', " + "'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]).round() + timesteps = timesteps.copy().astype(np.int64) + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_flow_sigmas: + alphas = np.linspace(1, 1 / self.config.num_train_timesteps, num_inference_steps + 1) + sigmas = 1.0 - alphas + sigmas = np.flip(self.config.flow_shift * sigmas / (1 + (self.config.flow_shift - 1) * sigmas))[:-1].copy() + timesteps = (sigmas * self.config.num_train_timesteps).copy() + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + else: + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + sigma_max = ( + (1 - self.alphas_cumprod[self.noisiest_timestep]) / self.alphas_cumprod[self.noisiest_timestep] + ) ** 0.5 + sigmas = np.concatenate([sigmas, [sigma_max]]).astype(np.float32) + + self.sigmas = torch.from_numpy(sigmas) + + # when num_inference_steps == num_train_timesteps, we can end up with + # duplicates in timesteps. + _, unique_indices = np.unique(timesteps, return_index=True) + timesteps = timesteps[np.sort(unique_indices)] + + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.int64) + + self.num_inference_steps = len(timesteps) + + self.model_outputs = [ + None, + ] * self.config.solver_order + self.lower_order_nums = 0 + + # add an index counter for schedulers that allow duplicated timesteps + self._step_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._sigma_to_alpha_sigma_t + def _sigma_to_alpha_sigma_t(self, sigma): + if self.config.use_flow_sigmas: + alpha_t = 1 - sigma + sigma_t = sigma + else: + alpha_t = 1 / ((sigma**2 + 1) ** 0.5) + sigma_t = sigma * alpha_t + + return alpha_t, sigma_t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.convert_model_output + def convert_model_output( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + """ + Convert the model output to the corresponding type the DPMSolver/DPMSolver++ algorithm needs. DPM-Solver is + designed to discretize an integral of the noise prediction model, and DPM-Solver++ is designed to discretize an + integral of the data prediction model. + + > [!TIP] > The algorithm and model type are decoupled. You can use either DPMSolver or DPMSolver++ for both + noise > prediction and data prediction models. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The converted model output. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + if sample is None: + if len(args) > 1: + sample = args[1] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + # DPM-Solver++ needs to solve an integral of the data prediction model. + if self.config.algorithm_type in ["dpmsolver++", "sde-dpmsolver++"]: + if self.config.prediction_type == "epsilon": + # DPM-Solver and DPM-Solver++ only need the "mean" output. + if self.config.variance_type in ["learned", "learned_range"]: + model_output = model_output[:, :3] + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + x0_pred = (sample - sigma_t * model_output) / alpha_t + elif self.config.prediction_type == "sample": + x0_pred = model_output + elif self.config.prediction_type == "v_prediction": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + x0_pred = alpha_t * sample - sigma_t * model_output + elif self.config.prediction_type == "flow_prediction": + sigma_t = self.sigmas[self.step_index] + x0_pred = sample - sigma_t * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, " + "`v_prediction`, or `flow_prediction` for the DPMSolverMultistepScheduler." + ) + + if self.config.thresholding: + x0_pred = self._threshold_sample(x0_pred) + + return x0_pred + + # DPM-Solver needs to solve an integral of the noise prediction model. + elif self.config.algorithm_type in ["dpmsolver", "sde-dpmsolver"]: + if self.config.prediction_type == "epsilon": + # DPM-Solver and DPM-Solver++ only need the "mean" output. + if self.config.variance_type in ["learned", "learned_range"]: + epsilon = model_output[:, :3] + else: + epsilon = model_output + elif self.config.prediction_type == "sample": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + epsilon = (sample - alpha_t * model_output) / sigma_t + elif self.config.prediction_type == "v_prediction": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + epsilon = alpha_t * model_output + sigma_t * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction` for the DPMSolverMultistepScheduler." + ) + + if self.config.thresholding: + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + x0_pred = (sample - sigma_t * epsilon) / alpha_t + x0_pred = self._threshold_sample(x0_pred) + epsilon = (sample - alpha_t * x0_pred) / sigma_t + + return epsilon + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.dpm_solver_first_order_update + def dpm_solver_first_order_update( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the first-order DPMSolver (equivalent to DDIM). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s = self.sigmas[self.step_index + 1], self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s, sigma_s = self._sigma_to_alpha_sigma_t(sigma_s) + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s = torch.log(alpha_s) - torch.log(sigma_s) + + h = lambda_t - lambda_s + if self.config.algorithm_type == "dpmsolver++": + x_t = (sigma_t / sigma_s) * sample - (alpha_t * (torch.exp(-h) - 1.0)) * model_output + elif self.config.algorithm_type == "dpmsolver": + x_t = (alpha_t / alpha_s) * sample - (sigma_t * (torch.exp(h) - 1.0)) * model_output + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + x_t = ( + (sigma_t / sigma_s * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * model_output + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.algorithm_type == "sde-dpmsolver": + assert noise is not None + x_t = ( + (alpha_t / alpha_s) * sample + - 2.0 * (sigma_t * (torch.exp(h) - 1.0)) * model_output + + sigma_t * torch.sqrt(torch.exp(2 * h) - 1.0) * noise + ) + return x_t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.multistep_dpm_solver_second_order_update + def multistep_dpm_solver_second_order_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the second-order multistep DPMSolver. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s0, sigma_s1 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + + m0, m1 = model_output_list[-1], model_output_list[-2] + + h, h_0 = lambda_t - lambda_s0, lambda_s0 - lambda_s1 + r0 = h_0 / h + D0, D1 = m0, (1.0 / r0) * (m0 - m1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2211.01095 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + - 0.5 * (alpha_t * (torch.exp(-h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1 + ) + elif self.config.algorithm_type == "dpmsolver": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - 0.5 * (sigma_t * (torch.exp(h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1 + ) + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + 0.5 * (alpha_t * (1 - torch.exp(-2.0 * h))) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.algorithm_type == "sde-dpmsolver": + assert noise is not None + if self.config.solver_type == "midpoint": + x_t = ( + (alpha_t / alpha_s0) * sample + - 2.0 * (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * (torch.exp(h) - 1.0)) * D1 + + sigma_t * torch.sqrt(torch.exp(2 * h) - 1.0) * noise + ) + elif self.config.solver_type == "heun": + x_t = ( + (alpha_t / alpha_s0) * sample + - 2.0 * (sigma_t * (torch.exp(h) - 1.0)) * D0 + - 2.0 * (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1 + + sigma_t * torch.sqrt(torch.exp(2 * h) - 1.0) * noise + ) + return x_t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.multistep_dpm_solver_third_order_update + def multistep_dpm_solver_third_order_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the third-order multistep DPMSolver. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s0, sigma_s1, sigma_s2 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + self.sigmas[self.step_index - 2], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + alpha_s2, sigma_s2 = self._sigma_to_alpha_sigma_t(sigma_s2) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + lambda_s2 = torch.log(alpha_s2) - torch.log(sigma_s2) + + m0, m1, m2 = model_output_list[-1], model_output_list[-2], model_output_list[-3] + + h, h_0, h_1 = lambda_t - lambda_s0, lambda_s0 - lambda_s1, lambda_s1 - lambda_s2 + r0, r1 = h_0 / h, h_1 / h + D0 = m0 + D1_0, D1_1 = (1.0 / r0) * (m0 - m1), (1.0 / r1) * (m1 - m2) + D1 = D1_0 + (r0 / (r0 + r1)) * (D1_0 - D1_1) + D2 = (1.0 / (r0 + r1)) * (D1_0 - D1_1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1 + - (alpha_t * ((torch.exp(-h) - 1.0 + h) / h**2 - 0.5)) * D2 + ) + elif self.config.algorithm_type == "dpmsolver": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + x_t = ( + (alpha_t / alpha_s0) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1 + - (sigma_t * ((torch.exp(h) - 1.0 - h) / h**2 - 0.5)) * D2 + ) + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1.0 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h) - 2.0 * h) / (2.0 * h) ** 2 - 0.5)) * D2 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + return x_t + + def _init_step_index(self, timestep): + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + + index_candidates = (self.timesteps == timestep).nonzero() + + if len(index_candidates) == 0: + step_index = len(self.timesteps) - 1 + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + + self._step_index = step_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[int, torch.Tensor], + sample: torch.Tensor, + generator=None, + variance_noise: Optional[torch.Tensor] = None, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the multistep DPMSolver. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + variance_noise (`torch.Tensor`): + Alternative to generating noise with `generator` by directly providing the noise for the variance + itself. Useful for methods such as [`CycleDiffusion`]. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # Improve numerical stability for small number of steps + lower_order_final = (self.step_index == len(self.timesteps) - 1) and ( + self.config.euler_at_final or (self.config.lower_order_final and len(self.timesteps) < 15) + ) + lower_order_second = ( + (self.step_index == len(self.timesteps) - 2) and self.config.lower_order_final and len(self.timesteps) < 15 + ) + + model_output = self.convert_model_output(model_output, sample=sample) + for i in range(self.config.solver_order - 1): + self.model_outputs[i] = self.model_outputs[i + 1] + self.model_outputs[-1] = model_output + + if self.config.algorithm_type in ["sde-dpmsolver", "sde-dpmsolver++"] and variance_noise is None: + noise = randn_tensor( + model_output.shape, generator=generator, device=model_output.device, dtype=model_output.dtype + ) + elif self.config.algorithm_type in ["sde-dpmsolver", "sde-dpmsolver++"]: + noise = variance_noise + else: + noise = None + + if self.config.solver_order == 1 or self.lower_order_nums < 1 or lower_order_final: + prev_sample = self.dpm_solver_first_order_update(model_output, sample=sample, noise=noise) + elif self.config.solver_order == 2 or self.lower_order_nums < 2 or lower_order_second: + prev_sample = self.multistep_dpm_solver_second_order_update(self.model_outputs, sample=sample, noise=noise) + else: + prev_sample = self.multistep_dpm_solver_third_order_update(self.model_outputs, sample=sample) + + if self.lower_order_nums < self.config.solver_order: + self.lower_order_nums += 1 + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.scale_model_input + def scale_model_input(self, sample: torch.Tensor, *args, **kwargs) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + step_indices = [] + for timestep in timesteps: + index_candidates = (schedule_timesteps == timestep).nonzero() + if len(index_candidates) == 0: + step_index = len(schedule_timesteps) - 1 + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + step_indices.append(step_index) + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + noisy_samples = alpha_t * original_samples + sigma_t * noise + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_sde.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_sde.py new file mode 100644 index 0000000000000000000000000000000000000000..ef89feb1cad6c05cf9b3f1e4b818dede9d59a108 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_sde.py @@ -0,0 +1,768 @@ +# Copyright 2025 Katherine Crowson, The HuggingFace Team and hlky. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch +import torchsde + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, is_scipy_available +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +if is_scipy_available(): + import scipy.stats + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->DPMSolverSDE +class DPMSolverSDESchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +class BatchedBrownianTree: + """A wrapper around torchsde.BrownianTree that enables batches of entropy.""" + + def __init__(self, x, t0, t1, seed=None, **kwargs): + t0, t1, self.sign = self.sort(t0, t1) + w0 = kwargs.get("w0", torch.zeros_like(x)) + if seed is None: + seed = torch.randint(0, 2**63 - 1, []).item() + self.batched = True + try: + assert len(seed) == x.shape[0] + w0 = w0[0] + except TypeError: + seed = [seed] + self.batched = False + self.trees = [ + torchsde.BrownianInterval( + t0=t0, + t1=t1, + size=w0.shape, + dtype=w0.dtype, + device=w0.device, + entropy=s, + tol=1e-6, + pool_size=24, + halfway_tree=True, + ) + for s in seed + ] + + @staticmethod + def sort(a, b): + return (a, b, 1) if a < b else (b, a, -1) + + def __call__(self, t0, t1): + t0, t1, sign = self.sort(t0, t1) + w = torch.stack([tree(t0, t1) for tree in self.trees]) * (self.sign * sign) + return w if self.batched else w[0] + + +class BrownianTreeNoiseSampler: + """A noise sampler backed by a torchsde.BrownianTree. + + Args: + x (Tensor): The tensor whose shape, device and dtype to use to generate + random samples. + sigma_min (float): The low end of the valid interval. + sigma_max (float): The high end of the valid interval. + seed (int or List[int]): The random seed. If a list of seeds is + supplied instead of a single integer, then the noise sampler will use one BrownianTree per batch item, each + with its own seed. + transform (callable): A function that maps sigma to the sampler's + internal timestep. + """ + + def __init__(self, x, sigma_min, sigma_max, seed=None, transform=lambda x: x): + self.transform = transform + t0, t1 = self.transform(torch.as_tensor(sigma_min)), self.transform(torch.as_tensor(sigma_max)) + self.tree = BatchedBrownianTree(x, t0, t1, seed) + + def __call__(self, sigma, sigma_next): + t0, t1 = self.transform(torch.as_tensor(sigma)), self.transform(torch.as_tensor(sigma_next)) + return self.tree(t0, t1) / (t1 - t0).abs().sqrt() + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class DPMSolverSDEScheduler(SchedulerMixin, ConfigMixin): + """ + DPMSolverSDEScheduler implements the stochastic sampler from the [Elucidating the Design Space of Diffusion-Based + Generative Models](https://huggingface.co/papers/2206.00364) paper. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.00085): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.012): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear` or `scaled_linear`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + noise_sampler_seed (`int`, *optional*, defaults to `None`): + The random seed to use for the noise sampler. If `None`, a random seed is generated. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 2 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.00085, # sensible defaults + beta_end: float = 0.012, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + prediction_type: str = "epsilon", + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + noise_sampler_seed: Optional[int] = None, + timestep_spacing: str = "linspace", + steps_offset: int = 0, + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # set all values + self.set_timesteps(num_train_timesteps, None, num_train_timesteps) + self.use_karras_sigmas = use_karras_sigmas + self.noise_sampler = None + self.noise_sampler_seed = noise_sampler_seed + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + @property + def init_noise_sigma(self): + # standard deviation of the initial noise distribution + if self.config.timestep_spacing in ["linspace", "trailing"]: + return self.sigmas.max() + + return (self.sigmas.max() ** 2 + 1) ** 0.5 + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input( + self, + sample: torch.Tensor, + timestep: Union[float, torch.Tensor], + ) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sigma_input = sigma if self.state_in_first_order else self.mid_point_sigma + sample = sample / ((sigma_input**2 + 1) ** 0.5) + return sample + + def set_timesteps( + self, + num_inference_steps: int, + device: Union[str, torch.device] = None, + num_train_timesteps: Optional[int] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.num_inference_steps = num_inference_steps + + num_train_timesteps = num_train_timesteps or self.config.num_train_timesteps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = np.linspace(0, num_train_timesteps - 1, num_inference_steps, dtype=float)[::-1].copy() + elif self.config.timestep_spacing == "leading": + step_ratio = num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(float) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(num_train_timesteps, 0, -step_ratio)).round().copy().astype(float) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + + second_order_timesteps = self._second_order_timesteps(sigmas, log_sigmas) + + sigmas = np.concatenate([sigmas, [0.0]]).astype(np.float32) + sigmas = torch.from_numpy(sigmas).to(device=device) + self.sigmas = torch.cat([sigmas[:1], sigmas[1:-1].repeat_interleave(2), sigmas[-1:]]) + + timesteps = torch.from_numpy(timesteps) + second_order_timesteps = torch.from_numpy(second_order_timesteps) + timesteps = torch.cat([timesteps[:1], timesteps[1:].repeat_interleave(2)]) + timesteps[1::2] = second_order_timesteps + + if str(device).startswith("mps"): + # mps does not support float64 + self.timesteps = timesteps.to(device, dtype=torch.float32) + else: + self.timesteps = timesteps.to(device=device) + + # empty first order variables + self.sample = None + self.mid_point_sigma = None + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + self.noise_sampler = None + + def _second_order_timesteps(self, sigmas, log_sigmas): + def sigma_fn(_t): + return np.exp(-_t) + + def t_fn(_sigma): + return -np.log(_sigma) + + midpoint_ratio = 0.5 + t = t_fn(sigmas) + delta_time = np.diff(t) + t_proposed = t[:-1] + delta_time * midpoint_ratio + sig_proposed = sigma_fn(t_proposed) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sig_proposed]) + return timesteps + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_lms_discrete.LMSDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + sigma_min: float = in_sigmas[-1].item() + sigma_max: float = in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, self.num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + @property + def state_in_first_order(self): + return self.sample is None + + def step( + self, + model_output: Union[torch.Tensor, np.ndarray], + timestep: Union[float, torch.Tensor], + sample: Union[torch.Tensor, np.ndarray], + return_dict: bool = True, + s_noise: float = 1.0, + ) -> Union[DPMSolverSDESchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor` or `np.ndarray`): + The direct output from learned diffusion model. + timestep (`float` or `torch.Tensor`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor` or `np.ndarray`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_dpmsolver_sde.DPMSolverSDESchedulerOutput`] or + tuple. + s_noise (`float`, *optional*, defaults to 1.0): + Scaling factor for noise added to the sample. + + Returns: + [`~schedulers.scheduling_dpmsolver_sde.DPMSolverSDESchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_dpmsolver_sde.DPMSolverSDESchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor. + """ + if self.step_index is None: + self._init_step_index(timestep) + + # Create a noise sampler if it hasn't been created yet + if self.noise_sampler is None: + min_sigma, max_sigma = self.sigmas[self.sigmas > 0].min(), self.sigmas.max() + self.noise_sampler = BrownianTreeNoiseSampler(sample, min_sigma, max_sigma, self.noise_sampler_seed) + + # Define functions to compute sigma and t from each other + def sigma_fn(_t: torch.Tensor) -> torch.Tensor: + return _t.neg().exp() + + def t_fn(_sigma: torch.Tensor) -> torch.Tensor: + return _sigma.log().neg() + + if self.state_in_first_order: + sigma = self.sigmas[self.step_index] + sigma_next = self.sigmas[self.step_index + 1] + else: + # 2nd order + sigma = self.sigmas[self.step_index - 1] + sigma_next = self.sigmas[self.step_index] + + # Set the midpoint and step size for the current step + midpoint_ratio = 0.5 + t, t_next = t_fn(sigma), t_fn(sigma_next) + delta_time = t_next - t + t_proposed = t + delta_time * midpoint_ratio + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if self.config.prediction_type == "epsilon": + sigma_input = sigma if self.state_in_first_order else sigma_fn(t_proposed) + pred_original_sample = sample - sigma_input * model_output + elif self.config.prediction_type == "v_prediction": + sigma_input = sigma if self.state_in_first_order else sigma_fn(t_proposed) + pred_original_sample = model_output * (-sigma_input / (sigma_input**2 + 1) ** 0.5) + ( + sample / (sigma_input**2 + 1) + ) + elif self.config.prediction_type == "sample": + raise NotImplementedError("prediction_type not implemented yet: sample") + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + if sigma_next == 0: + derivative = (sample - pred_original_sample) / sigma + dt = sigma_next - sigma + prev_sample = sample + derivative * dt + else: + if self.state_in_first_order: + t_next = t_proposed + else: + sample = self.sample + + sigma_from = sigma_fn(t) + sigma_to = sigma_fn(t_next) + sigma_up = min(sigma_to, (sigma_to**2 * (sigma_from**2 - sigma_to**2) / sigma_from**2) ** 0.5) + sigma_down = (sigma_to**2 - sigma_up**2) ** 0.5 + ancestral_t = t_fn(sigma_down) + prev_sample = (sigma_fn(ancestral_t) / sigma_fn(t)) * sample - ( + t - ancestral_t + ).expm1() * pred_original_sample + prev_sample = prev_sample + self.noise_sampler(sigma_fn(t), sigma_fn(t_next)) * s_noise * sigma_up + + if self.state_in_first_order: + # store for 2nd order step + self.sample = sample + self.mid_point_sigma = sigma_fn(t_next) + else: + # free for "first order mode" + self.sample = None + self.mid_point_sigma = None + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return DPMSolverSDESchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_singlestep.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_singlestep.py new file mode 100644 index 0000000000000000000000000000000000000000..0b271d7eacb4b7bd3c6e73befcc3eed01767a23a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_dpmsolver_singlestep.py @@ -0,0 +1,1236 @@ +# Copyright 2025 TSAIL Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/LuChengTHU/dpm-solver + +import math +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import deprecate, is_scipy_available, logging +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin, SchedulerOutput + + +if is_scipy_available(): + import scipy.stats + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class DPMSolverSinglestepScheduler(SchedulerMixin, ConfigMixin): + """ + `DPMSolverSinglestepScheduler` is a fast dedicated high-order solver for diffusion ODEs. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + solver_order (`int`, defaults to 2): + The DPMSolver order which can be `1` or `2` or `3`. It is recommended to use `solver_order=2` for guided + sampling, and `solver_order=3` for unconditional sampling. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True` and + `algorithm_type="dpmsolver++"`. + algorithm_type (`str`, defaults to `dpmsolver++`): + Algorithm type for the solver; can be `dpmsolver` or `dpmsolver++` or `sde-dpmsolver++`. The `dpmsolver` + type implements the algorithms in the [DPMSolver](https://huggingface.co/papers/2206.00927) paper, and the + `dpmsolver++` type implements the algorithms in the [DPMSolver++](https://huggingface.co/papers/2211.01095) + paper. It is recommended to use `dpmsolver++` or `sde-dpmsolver++` with `solver_order=2` for guided + sampling like in Stable Diffusion. + solver_type (`str`, defaults to `midpoint`): + Solver type for the second-order solver; can be `midpoint` or `heun`. The solver type slightly affects the + sample quality, especially for a small number of steps. It is recommended to use `midpoint` solvers. + lower_order_final (`bool`, defaults to `True`): + Whether to use lower-order solvers in the final steps. Only valid for < 15 inference steps. This can + stabilize the sampling of DPMSolver for steps < 15, especially for steps <= 10. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + final_sigmas_type (`str`, *optional*, defaults to `"zero"`): + The final `sigma` value for the noise schedule during the sampling process. If `"sigma_min"`, the final + sigma is the same as the last sigma in the training schedule. If `zero`, the final sigma is set to 0. + lambda_min_clipped (`float`, defaults to `-inf`): + Clipping threshold for the minimum value of `lambda(t)` for numerical stability. This is critical for the + cosine (`squaredcos_cap_v2`) noise schedule. + variance_type (`str`, *optional*): + Set to "learned" or "learned_range" for diffusion models that predict variance. If set, the model's output + contains the predicted Gaussian variance. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[np.ndarray] = None, + solver_order: int = 2, + prediction_type: str = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + algorithm_type: str = "dpmsolver++", + solver_type: str = "midpoint", + lower_order_final: bool = False, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + use_flow_sigmas: Optional[bool] = False, + flow_shift: Optional[float] = 1.0, + final_sigmas_type: Optional[str] = "zero", # "zero", "sigma_min" + lambda_min_clipped: float = -float("inf"), + variance_type: Optional[str] = None, + use_dynamic_shifting: bool = False, + time_shift_type: str = "exponential", + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if algorithm_type == "dpmsolver": + deprecation_message = "algorithm_type `dpmsolver` is deprecated and will be removed in a future version. Choose from `dpmsolver++` or `sde-dpmsolver++` instead" + deprecate("algorithm_types=dpmsolver", "1.0.0", deprecation_message) + + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + # Currently we only support VP-type noise schedule + self.alpha_t = torch.sqrt(self.alphas_cumprod) + self.sigma_t = torch.sqrt(1 - self.alphas_cumprod) + self.lambda_t = torch.log(self.alpha_t) - torch.log(self.sigma_t) + self.sigmas = ((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5 + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # settings for DPM-Solver + if algorithm_type not in ["dpmsolver", "dpmsolver++", "sde-dpmsolver++"]: + if algorithm_type == "deis": + self.register_to_config(algorithm_type="dpmsolver++") + else: + raise NotImplementedError(f"{algorithm_type} is not implemented for {self.__class__}") + if solver_type not in ["midpoint", "heun"]: + if solver_type in ["logrho", "bh1", "bh2"]: + self.register_to_config(solver_type="midpoint") + else: + raise NotImplementedError(f"{solver_type} is not implemented for {self.__class__}") + + if algorithm_type not in ["dpmsolver++", "sde-dpmsolver++"] and final_sigmas_type == "zero": + raise ValueError( + f"`final_sigmas_type` {final_sigmas_type} is not supported for `algorithm_type` {algorithm_type}. Please choose `sigma_min` instead." + ) + + # setable values + self.num_inference_steps = None + timesteps = np.linspace(0, num_train_timesteps - 1, num_train_timesteps, dtype=np.float32)[::-1].copy() + self.timesteps = torch.from_numpy(timesteps) + self.model_outputs = [None] * solver_order + self.sample = None + self.order_list = self.get_order_list(num_train_timesteps) + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + def get_order_list(self, num_inference_steps: int) -> List[int]: + """ + Computes the solver order at each time step. + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + """ + steps = num_inference_steps + order = self.config.solver_order + if order > 3: + raise ValueError("Order > 3 is not supported by this scheduler") + if self.config.lower_order_final: + if order == 3: + if steps % 3 == 0: + orders = [1, 2, 3] * (steps // 3 - 1) + [1, 2] + [1] + elif steps % 3 == 1: + orders = [1, 2, 3] * (steps // 3) + [1] + else: + orders = [1, 2, 3] * (steps // 3) + [1, 2] + elif order == 2: + if steps % 2 == 0: + orders = [1, 2] * (steps // 2 - 1) + [1, 1] + else: + orders = [1, 2] * (steps // 2) + [1] + elif order == 1: + orders = [1] * steps + else: + if order == 3: + orders = [1, 2, 3] * (steps // 3) + elif order == 2: + orders = [1, 2] * (steps // 2) + elif order == 1: + orders = [1] * steps + + if self.config.final_sigmas_type == "zero": + orders[-1] = 1 + + return orders + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_timesteps( + self, + num_inference_steps: int = None, + device: Union[str, torch.device] = None, + mu: Optional[float] = None, + timesteps: Optional[List[int]] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary spacing between timesteps. If `None`, then the default + timestep spacing strategy of equal spacing between timesteps schedule is used. If `timesteps` is + passed, `num_inference_steps` must be `None`. + """ + if mu is not None: + assert self.config.use_dynamic_shifting and self.config.time_shift_type == "exponential" + self.config.flow_shift = np.exp(mu) + if num_inference_steps is None and timesteps is None: + raise ValueError("Must pass exactly one of `num_inference_steps` or `timesteps`.") + if num_inference_steps is not None and timesteps is not None: + raise ValueError("Must pass exactly one of `num_inference_steps` or `timesteps`.") + if timesteps is not None and self.config.use_karras_sigmas: + raise ValueError("Cannot use `timesteps` when `config.use_karras_sigmas=True`.") + if timesteps is not None and self.config.use_exponential_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_exponential_sigmas = True`.") + if timesteps is not None and self.config.use_beta_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_beta_sigmas = True`.") + + num_inference_steps = num_inference_steps or len(timesteps) + self.num_inference_steps = num_inference_steps + + if timesteps is not None: + timesteps = np.array(timesteps).astype(np.int64) + else: + # Clipping the minimum of all lambda(t) for numerical stability. + # This is critical for cosine (squaredcos_cap_v2) noise schedule. + clipped_idx = torch.searchsorted(torch.flip(self.lambda_t, [0]), self.config.lambda_min_clipped) + clipped_idx = clipped_idx.item() + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1 - clipped_idx, num_inference_steps + 1) + .round()[::-1][:-1] + .copy() + .astype(np.int64) + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + if self.config.use_karras_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]).round() + elif self.config.use_exponential_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_beta_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_flow_sigmas: + alphas = np.linspace(1, 1 / self.config.num_train_timesteps, num_inference_steps + 1) + sigmas = 1.0 - alphas + sigmas = np.flip(self.config.flow_shift * sigmas / (1 + (self.config.flow_shift - 1) * sigmas))[:-1].copy() + timesteps = (sigmas * self.config.num_train_timesteps).copy() + else: + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + + if self.config.final_sigmas_type == "sigma_min": + sigma_last = ((1 - self.alphas_cumprod[0]) / self.alphas_cumprod[0]) ** 0.5 + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f" `final_sigmas_type` must be one of `sigma_min` or `zero`, but got {self.config.final_sigmas_type}" + ) + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + + self.sigmas = torch.from_numpy(sigmas).to(device=device) + + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.int64) + self.model_outputs = [None] * self.config.solver_order + self.sample = None + + if not self.config.lower_order_final and num_inference_steps % self.config.solver_order != 0: + logger.warning( + "Changing scheduler {self.config} to have `lower_order_final` set to True to handle uneven amount of inference steps. Please make sure to always use an even number of `num_inference steps when using `lower_order_final=False`." + ) + self.register_to_config(lower_order_final=True) + + if not self.config.lower_order_final and self.config.final_sigmas_type == "zero": + logger.warning( + " `last_sigmas_type='zero'` is not supported for `lower_order_final=False`. Changing scheduler {self.config} to have `lower_order_final` set to True." + ) + self.register_to_config(lower_order_final=True) + + self.order_list = self.get_order_list(num_inference_steps) + + # add an index counter for schedulers that allow duplicated timesteps + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._sigma_to_alpha_sigma_t + def _sigma_to_alpha_sigma_t(self, sigma): + if self.config.use_flow_sigmas: + alpha_t = 1 - sigma + sigma_t = sigma + else: + alpha_t = 1 / ((sigma**2 + 1) ** 0.5) + sigma_t = sigma * alpha_t + + return alpha_t, sigma_t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def convert_model_output( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + """ + Convert the model output to the corresponding type the DPMSolver/DPMSolver++ algorithm needs. DPM-Solver is + designed to discretize an integral of the noise prediction model, and DPM-Solver++ is designed to discretize an + integral of the data prediction model. + + > [!TIP] > The algorithm and model type are decoupled. You can use either DPMSolver or DPMSolver++ for both + noise > prediction and data prediction models. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The converted model output. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + if sample is None: + if len(args) > 1: + sample = args[1] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + # DPM-Solver++ needs to solve an integral of the data prediction model. + if self.config.algorithm_type in ["dpmsolver++", "sde-dpmsolver++"]: + if self.config.prediction_type == "epsilon": + # DPM-Solver and DPM-Solver++ only need the "mean" output. + if self.config.variance_type in ["learned", "learned_range"]: + model_output = model_output[:, :3] + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + x0_pred = (sample - sigma_t * model_output) / alpha_t + elif self.config.prediction_type == "sample": + x0_pred = model_output + elif self.config.prediction_type == "v_prediction": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + x0_pred = alpha_t * sample - sigma_t * model_output + elif self.config.prediction_type == "flow_prediction": + sigma_t = self.sigmas[self.step_index] + x0_pred = sample - sigma_t * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, " + "`v_prediction`, or `flow_prediction` for the DPMSolverSinglestepScheduler." + ) + + if self.config.thresholding: + x0_pred = self._threshold_sample(x0_pred) + + return x0_pred + + # DPM-Solver needs to solve an integral of the noise prediction model. + elif self.config.algorithm_type == "dpmsolver": + if self.config.prediction_type == "epsilon": + # DPM-Solver and DPM-Solver++ only need the "mean" output. + if self.config.variance_type in ["learned", "learned_range"]: + epsilon = model_output[:, :3] + else: + epsilon = model_output + elif self.config.prediction_type == "sample": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + epsilon = (sample - alpha_t * model_output) / sigma_t + elif self.config.prediction_type == "v_prediction": + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + epsilon = alpha_t * model_output + sigma_t * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction` for the DPMSolverSinglestepScheduler." + ) + + if self.config.thresholding: + alpha_t, sigma_t = self.alpha_t[timestep], self.sigma_t[timestep] + x0_pred = (sample - sigma_t * epsilon) / alpha_t + x0_pred = self._threshold_sample(x0_pred) + epsilon = (sample - alpha_t * x0_pred) / sigma_t + + return epsilon + + def dpm_solver_first_order_update( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the first-order DPMSolver (equivalent to DDIM). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + prev_timestep (`int`): + The previous discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + sigma_t, sigma_s = self.sigmas[self.step_index + 1], self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s, sigma_s = self._sigma_to_alpha_sigma_t(sigma_s) + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s = torch.log(alpha_s) - torch.log(sigma_s) + h = lambda_t - lambda_s + if self.config.algorithm_type == "dpmsolver++": + x_t = (sigma_t / sigma_s) * sample - (alpha_t * (torch.exp(-h) - 1.0)) * model_output + elif self.config.algorithm_type == "dpmsolver": + x_t = (alpha_t / alpha_s) * sample - (sigma_t * (torch.exp(h) - 1.0)) * model_output + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + x_t = ( + (sigma_t / sigma_s * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * model_output + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + return x_t + + def singlestep_dpm_solver_second_order_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the second-order singlestep DPMSolver that computes the solution at time `prev_timestep` from the + time `timestep_list[-2]`. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + timestep (`int`): + The current and latter discrete timestep in the diffusion chain. + prev_timestep (`int`): + The previous discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + sigma_t, sigma_s0, sigma_s1 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + + m0, m1 = model_output_list[-1], model_output_list[-2] + + h, h_0 = lambda_t - lambda_s1, lambda_s0 - lambda_s1 + r0 = h_0 / h + D0, D1 = m1, (1.0 / r0) * (m0 - m1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2211.01095 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s1) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + - 0.5 * (alpha_t * (torch.exp(-h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s1) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1 + ) + elif self.config.algorithm_type == "dpmsolver": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (alpha_t / alpha_s1) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - 0.5 * (sigma_t * (torch.exp(h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (alpha_t / alpha_s1) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1 + ) + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s1 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + 0.5 * (alpha_t * (1 - torch.exp(-2.0 * h))) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s1 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + return x_t + + def singlestep_dpm_solver_third_order_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the third-order singlestep DPMSolver that computes the solution at time `prev_timestep` from the + time `timestep_list[-3]`. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + timestep (`int`): + The current and latter discrete timestep in the diffusion chain. + prev_timestep (`int`): + The previous discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma_t, sigma_s0, sigma_s1, sigma_s2 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + self.sigmas[self.step_index - 2], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + alpha_s2, sigma_s2 = self._sigma_to_alpha_sigma_t(sigma_s2) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + lambda_s2 = torch.log(alpha_s2) - torch.log(sigma_s2) + + m0, m1, m2 = model_output_list[-1], model_output_list[-2], model_output_list[-3] + + h, h_0, h_1 = lambda_t - lambda_s2, lambda_s0 - lambda_s2, lambda_s1 - lambda_s2 + r0, r1 = h_0 / h, h_1 / h + D0 = m2 + D1_0, D1_1 = (1.0 / r1) * (m1 - m2), (1.0 / r0) * (m0 - m2) + D1 = (r0 * D1_0 - r1 * D1_1) / (r0 - r1) + D2 = 2.0 * (D1_1 - D1_0) / (r0 - r1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s2) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1_1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s2) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1 + - (alpha_t * ((torch.exp(-h) - 1.0 + h) / h**2 - 0.5)) * D2 + ) + elif self.config.algorithm_type == "dpmsolver": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (alpha_t / alpha_s2) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1_1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (alpha_t / alpha_s2) * sample + - (sigma_t * (torch.exp(h) - 1.0)) * D0 + - (sigma_t * ((torch.exp(h) - 1.0) / h - 1.0)) * D1 + - (sigma_t * ((torch.exp(h) - 1.0 - h) / h**2 - 0.5)) * D2 + ) + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s2 * torch.exp(-h)) * sample + + (alpha_t * (1.0 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1_1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s2 * torch.exp(-h)) * sample + + (alpha_t * (1.0 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h) + (-2.0 * h)) / (-2.0 * h) ** 2 - 0.5)) * D2 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + return x_t + + def singlestep_dpm_solver_update( + self, + model_output_list: List[torch.Tensor], + *args, + sample: torch.Tensor = None, + order: int = None, + noise: Optional[torch.Tensor] = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the singlestep DPMSolver. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + timestep (`int`): + The current and latter discrete timestep in the diffusion chain. + prev_timestep (`int`): + The previous discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by diffusion process. + order (`int`): + The solver order at this step. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + timestep_list = args[0] if len(args) > 0 else kwargs.pop("timestep_list", None) + prev_timestep = args[1] if len(args) > 1 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 2: + sample = args[2] + else: + raise ValueError("missing `sample` as a required keyword argument") + if order is None: + if len(args) > 3: + order = args[3] + else: + raise ValueError("missing `order` as a required keyword argument") + if timestep_list is not None: + deprecate( + "timestep_list", + "1.0.0", + "Passing `timestep_list` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + if order == 1: + return self.dpm_solver_first_order_update(model_output_list[-1], sample=sample, noise=noise) + elif order == 2: + return self.singlestep_dpm_solver_second_order_update(model_output_list, sample=sample, noise=noise) + elif order == 3: + return self.singlestep_dpm_solver_third_order_update(model_output_list, sample=sample, noise=noise) + else: + raise ValueError(f"Order must be 1, 2, 3, got {order}") + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.index_for_timestep + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + index_candidates = (schedule_timesteps == timestep).nonzero() + + if len(index_candidates) == 0: + step_index = len(self.timesteps) - 1 + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + + return step_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._init_step_index + def _init_step_index(self, timestep): + """ + Initialize the step_index counter for the scheduler. + """ + + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[int, torch.Tensor], + sample: torch.Tensor, + generator=None, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the singlestep DPMSolver. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + model_output = self.convert_model_output(model_output, sample=sample) + for i in range(self.config.solver_order - 1): + self.model_outputs[i] = self.model_outputs[i + 1] + self.model_outputs[-1] = model_output + + if self.config.algorithm_type == "sde-dpmsolver++": + noise = randn_tensor( + model_output.shape, generator=generator, device=model_output.device, dtype=model_output.dtype + ) + else: + noise = None + + order = self.order_list[self.step_index] + + # For img2img denoising might start with order>1 which is not possible + # In this case make sure that the first two steps are both order=1 + while self.model_outputs[-order] is None: + order -= 1 + + # For single-step solvers, we use the initial value at each time with order = 1. + if order == 1: + self.sample = sample + + prev_sample = self.singlestep_dpm_solver_update( + self.model_outputs, sample=self.sample, order=order, noise=noise + ) + + # upon completion increase step index by one, noise=noise + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def scale_model_input(self, sample: torch.Tensor, *args, **kwargs) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # begin_index is None when the scheduler is used for training or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + noisy_samples = alpha_t * original_samples + sigma_t * noise + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_edm_dpmsolver_multistep.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_edm_dpmsolver_multistep.py new file mode 100644 index 0000000000000000000000000000000000000000..eeec588e27a32c53e5810509de13aa8dd201605f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_edm_dpmsolver_multistep.py @@ -0,0 +1,746 @@ +# Copyright 2025 TSAIL Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/LuChengTHU/dpm-solver and https://github.com/NVlabs/edm + +import math +from typing import List, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin, SchedulerOutput + + +class EDMDPMSolverMultistepScheduler(SchedulerMixin, ConfigMixin): + """ + Implements DPMSolverMultistepScheduler in EDM formulation as presented in Karras et al. 2022 [1]. + `EDMDPMSolverMultistepScheduler` is a fast dedicated high-order solver for diffusion ODEs. + + [1] Karras, Tero, et al. "Elucidating the Design Space of Diffusion-Based Generative Models." + https://huggingface.co/papers/2206.00364 + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + sigma_min (`float`, *optional*, defaults to 0.002): + Minimum noise magnitude in the sigma schedule. This was set to 0.002 in the EDM paper [1]; a reasonable + range is [0, 10]. + sigma_max (`float`, *optional*, defaults to 80.0): + Maximum noise magnitude in the sigma schedule. This was set to 80.0 in the EDM paper [1]; a reasonable + range is [0.2, 80.0]. + sigma_data (`float`, *optional*, defaults to 0.5): + The standard deviation of the data distribution. This is set to 0.5 in the EDM paper [1]. + sigma_schedule (`str`, *optional*, defaults to `karras`): + Sigma schedule to compute the `sigmas`. By default, we the schedule introduced in the EDM paper + (https://huggingface.co/papers/2206.00364). Other acceptable value is "exponential". The exponential + schedule was incorporated in this model: https://huggingface.co/stabilityai/cosxl. + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + solver_order (`int`, defaults to 2): + The DPMSolver order which can be `1` or `2` or `3`. It is recommended to use `solver_order=2` for guided + sampling, and `solver_order=3` for unconditional sampling. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True` and + `algorithm_type="dpmsolver++"`. + algorithm_type (`str`, defaults to `dpmsolver++`): + Algorithm type for the solver; can be `dpmsolver++` or `sde-dpmsolver++`. The `dpmsolver++` type implements + the algorithms in the [DPMSolver++](https://huggingface.co/papers/2211.01095) paper. It is recommended to + use `dpmsolver++` or `sde-dpmsolver++` with `solver_order=2` for guided sampling like in Stable Diffusion. + solver_type (`str`, defaults to `midpoint`): + Solver type for the second-order solver; can be `midpoint` or `heun`. The solver type slightly affects the + sample quality, especially for a small number of steps. It is recommended to use `midpoint` solvers. + lower_order_final (`bool`, defaults to `True`): + Whether to use lower-order solvers in the final steps. Only valid for < 15 inference steps. This can + stabilize the sampling of DPMSolver for steps < 15, especially for steps <= 10. + euler_at_final (`bool`, defaults to `False`): + Whether to use Euler's method in the final step. It is a trade-off between numerical stability and detail + richness. This can stabilize the sampling of the SDE variant of DPMSolver for small number of inference + steps, but sometimes may result in blurring. + final_sigmas_type (`str`, defaults to `"zero"`): + The final `sigma` value for the noise schedule during the sampling process. If `"sigma_min"`, the final + sigma is the same as the last sigma in the training schedule. If `zero`, the final sigma is set to 0. + """ + + _compatibles = [] + order = 1 + + @register_to_config + def __init__( + self, + sigma_min: float = 0.002, + sigma_max: float = 80.0, + sigma_data: float = 0.5, + sigma_schedule: str = "karras", + num_train_timesteps: int = 1000, + prediction_type: str = "epsilon", + rho: float = 7.0, + solver_order: int = 2, + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + algorithm_type: str = "dpmsolver++", + solver_type: str = "midpoint", + lower_order_final: bool = True, + euler_at_final: bool = False, + final_sigmas_type: Optional[str] = "zero", # "zero", "sigma_min" + ): + # settings for DPM-Solver + if algorithm_type not in ["dpmsolver++", "sde-dpmsolver++"]: + if algorithm_type == "deis": + self.register_to_config(algorithm_type="dpmsolver++") + else: + raise NotImplementedError(f"{algorithm_type} is not implemented for {self.__class__}") + + if solver_type not in ["midpoint", "heun"]: + if solver_type in ["logrho", "bh1", "bh2"]: + self.register_to_config(solver_type="midpoint") + else: + raise NotImplementedError(f"{solver_type} is not implemented for {self.__class__}") + + if algorithm_type not in ["dpmsolver++", "sde-dpmsolver++"] and final_sigmas_type == "zero": + raise ValueError( + f"`final_sigmas_type` {final_sigmas_type} is not supported for `algorithm_type` {algorithm_type}. Please choose `sigma_min` instead." + ) + + ramp = torch.linspace(0, 1, num_train_timesteps) + if sigma_schedule == "karras": + sigmas = self._compute_karras_sigmas(ramp) + elif sigma_schedule == "exponential": + sigmas = self._compute_exponential_sigmas(ramp) + + self.timesteps = self.precondition_noise(sigmas) + + self.sigmas = torch.cat([sigmas, torch.zeros(1, device=sigmas.device)]) + + # setable values + self.num_inference_steps = None + self.model_outputs = [None] * solver_order + self.lower_order_nums = 0 + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def init_noise_sigma(self): + # standard deviation of the initial noise distribution + return (self.config.sigma_max**2 + 1) ** 0.5 + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler.precondition_inputs + def precondition_inputs(self, sample, sigma): + c_in = self._get_conditioning_c_in(sigma) + scaled_sample = sample * c_in + return scaled_sample + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler.precondition_noise + def precondition_noise(self, sigma): + if not isinstance(sigma, torch.Tensor): + sigma = torch.tensor([sigma]) + + c_noise = 0.25 * torch.log(sigma) + + return c_noise + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler.precondition_outputs + def precondition_outputs(self, sample, model_output, sigma): + sigma_data = self.config.sigma_data + c_skip = sigma_data**2 / (sigma**2 + sigma_data**2) + + if self.config.prediction_type == "epsilon": + c_out = sigma * sigma_data / (sigma**2 + sigma_data**2) ** 0.5 + elif self.config.prediction_type == "v_prediction": + c_out = -sigma * sigma_data / (sigma**2 + sigma_data**2) ** 0.5 + else: + raise ValueError(f"Prediction type {self.config.prediction_type} is not supported.") + + denoised = c_skip * sample + c_out * model_output + + return denoised + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler.scale_model_input + def scale_model_input(self, sample: torch.Tensor, timestep: Union[float, torch.Tensor]) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. Scales the denoising model input by `(sigma**2 + 1) ** 0.5` to match the Euler algorithm. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sample = self.precondition_inputs(sample, sigma) + + self.is_scale_input_called = True + return sample + + def set_timesteps(self, num_inference_steps: int = None, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + + self.num_inference_steps = num_inference_steps + + ramp = torch.linspace(0, 1, self.num_inference_steps) + if self.config.sigma_schedule == "karras": + sigmas = self._compute_karras_sigmas(ramp) + elif self.config.sigma_schedule == "exponential": + sigmas = self._compute_exponential_sigmas(ramp) + + sigmas = sigmas.to(dtype=torch.float32, device=device) + self.timesteps = self.precondition_noise(sigmas) + + if self.config.final_sigmas_type == "sigma_min": + sigma_last = self.config.sigma_min + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + + self.sigmas = torch.cat([sigmas, torch.tensor([sigma_last], dtype=torch.float32, device=device)]) + + self.model_outputs = [ + None, + ] * self.config.solver_order + self.lower_order_nums = 0 + + # add an index counter for schedulers that allow duplicated timesteps + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler._compute_karras_sigmas + def _compute_karras_sigmas(self, ramp, sigma_min=None, sigma_max=None) -> torch.Tensor: + """Constructs the noise schedule of Karras et al. (2022).""" + sigma_min = sigma_min or self.config.sigma_min + sigma_max = sigma_max or self.config.sigma_max + + rho = self.config.rho + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler._compute_exponential_sigmas + def _compute_exponential_sigmas(self, ramp, sigma_min=None, sigma_max=None) -> torch.Tensor: + """Implementation closely follows k-diffusion. + + https://github.com/crowsonkb/k-diffusion/blob/6ab5146d4a5ef63901326489f31f1d8e7dd36b48/k_diffusion/sampling.py#L26 + """ + sigma_min = sigma_min or self.config.sigma_min + sigma_max = sigma_max or self.config.sigma_max + sigmas = torch.linspace(math.log(sigma_min), math.log(sigma_max), len(ramp)).exp().flip(0) + return sigmas + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + def _sigma_to_alpha_sigma_t(self, sigma): + alpha_t = torch.tensor(1) # Inputs are pre-scaled before going into unet, so alpha_t = 1 + sigma_t = sigma + + return alpha_t, sigma_t + + def convert_model_output( + self, + model_output: torch.Tensor, + sample: torch.Tensor = None, + ) -> torch.Tensor: + """ + Convert the model output to the corresponding type the DPMSolver/DPMSolver++ algorithm needs. DPM-Solver is + designed to discretize an integral of the noise prediction model, and DPM-Solver++ is designed to discretize an + integral of the data prediction model. + + > [!TIP] > The algorithm and model type are decoupled. You can use either DPMSolver or DPMSolver++ for both + noise > prediction and data prediction models. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The converted model output. + """ + sigma = self.sigmas[self.step_index] + x0_pred = self.precondition_outputs(sample, model_output, sigma) + + if self.config.thresholding: + x0_pred = self._threshold_sample(x0_pred) + + return x0_pred + + def dpm_solver_first_order_update( + self, + model_output: torch.Tensor, + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + """ + One step for the first-order DPMSolver (equivalent to DDIM). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + sigma_t, sigma_s = self.sigmas[self.step_index + 1], self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s, sigma_s = self._sigma_to_alpha_sigma_t(sigma_s) + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s = torch.log(alpha_s) - torch.log(sigma_s) + + h = lambda_t - lambda_s + if self.config.algorithm_type == "dpmsolver++": + x_t = (sigma_t / sigma_s) * sample - (alpha_t * (torch.exp(-h) - 1.0)) * model_output + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + x_t = ( + (sigma_t / sigma_s * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * model_output + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + + return x_t + + def multistep_dpm_solver_second_order_update( + self, + model_output_list: List[torch.Tensor], + sample: torch.Tensor = None, + noise: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + """ + One step for the second-order multistep DPMSolver. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + sigma_t, sigma_s0, sigma_s1 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + + m0, m1 = model_output_list[-1], model_output_list[-2] + + h, h_0 = lambda_t - lambda_s0, lambda_s0 - lambda_s1 + r0 = h_0 / h + D0, D1 = m0, (1.0 / r0) * (m0 - m1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2211.01095 for detailed derivations + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + - 0.5 * (alpha_t * (torch.exp(-h) - 1.0)) * D1 + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1 + ) + elif self.config.algorithm_type == "sde-dpmsolver++": + assert noise is not None + if self.config.solver_type == "midpoint": + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + 0.5 * (alpha_t * (1 - torch.exp(-2.0 * h))) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + elif self.config.solver_type == "heun": + x_t = ( + (sigma_t / sigma_s0 * torch.exp(-h)) * sample + + (alpha_t * (1 - torch.exp(-2.0 * h))) * D0 + + (alpha_t * ((1.0 - torch.exp(-2.0 * h)) / (-2.0 * h) + 1.0)) * D1 + + sigma_t * torch.sqrt(1.0 - torch.exp(-2 * h)) * noise + ) + + return x_t + + def multistep_dpm_solver_third_order_update( + self, + model_output_list: List[torch.Tensor], + sample: torch.Tensor = None, + ) -> torch.Tensor: + """ + One step for the third-order multistep DPMSolver. + + Args: + model_output_list (`List[torch.Tensor]`): + The direct outputs from learned diffusion model at current and latter timesteps. + sample (`torch.Tensor`): + A current instance of a sample created by diffusion process. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + sigma_t, sigma_s0, sigma_s1, sigma_s2 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + self.sigmas[self.step_index - 2], + ) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + alpha_s1, sigma_s1 = self._sigma_to_alpha_sigma_t(sigma_s1) + alpha_s2, sigma_s2 = self._sigma_to_alpha_sigma_t(sigma_s2) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + lambda_s1 = torch.log(alpha_s1) - torch.log(sigma_s1) + lambda_s2 = torch.log(alpha_s2) - torch.log(sigma_s2) + + m0, m1, m2 = model_output_list[-1], model_output_list[-2], model_output_list[-3] + + h, h_0, h_1 = lambda_t - lambda_s0, lambda_s0 - lambda_s1, lambda_s1 - lambda_s2 + r0, r1 = h_0 / h, h_1 / h + D0 = m0 + D1_0, D1_1 = (1.0 / r0) * (m0 - m1), (1.0 / r1) * (m1 - m2) + D1 = D1_0 + (r0 / (r0 + r1)) * (D1_0 - D1_1) + D2 = (1.0 / (r0 + r1)) * (D1_0 - D1_1) + if self.config.algorithm_type == "dpmsolver++": + # See https://huggingface.co/papers/2206.00927 for detailed derivations + x_t = ( + (sigma_t / sigma_s0) * sample + - (alpha_t * (torch.exp(-h) - 1.0)) * D0 + + (alpha_t * ((torch.exp(-h) - 1.0) / h + 1.0)) * D1 + - (alpha_t * ((torch.exp(-h) - 1.0 + h) / h**2 - 0.5)) * D2 + ) + + return x_t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.index_for_timestep + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + index_candidates = (schedule_timesteps == timestep).nonzero() + + if len(index_candidates) == 0: + step_index = len(self.timesteps) - 1 + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + + return step_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._init_step_index + def _init_step_index(self, timestep): + """ + Initialize the step_index counter for the scheduler. + """ + + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[int, torch.Tensor], + sample: torch.Tensor, + generator=None, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the multistep DPMSolver. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # Improve numerical stability for small number of steps + lower_order_final = (self.step_index == len(self.timesteps) - 1) and ( + self.config.euler_at_final + or (self.config.lower_order_final and len(self.timesteps) < 15) + or self.config.final_sigmas_type == "zero" + ) + lower_order_second = ( + (self.step_index == len(self.timesteps) - 2) and self.config.lower_order_final and len(self.timesteps) < 15 + ) + + model_output = self.convert_model_output(model_output, sample=sample) + for i in range(self.config.solver_order - 1): + self.model_outputs[i] = self.model_outputs[i + 1] + self.model_outputs[-1] = model_output + + if self.config.algorithm_type == "sde-dpmsolver++": + noise = randn_tensor( + model_output.shape, generator=generator, device=model_output.device, dtype=model_output.dtype + ) + else: + noise = None + + if self.config.solver_order == 1 or self.lower_order_nums < 1 or lower_order_final: + prev_sample = self.dpm_solver_first_order_update(model_output, sample=sample, noise=noise) + elif self.config.solver_order == 2 or self.lower_order_nums < 2 or lower_order_second: + prev_sample = self.multistep_dpm_solver_second_order_update(self.model_outputs, sample=sample, noise=noise) + else: + prev_sample = self.multistep_dpm_solver_third_order_update(self.model_outputs, sample=sample) + + if self.lower_order_nums < self.config.solver_order: + self.lower_order_nums += 1 + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_edm_euler.EDMEulerScheduler._get_conditioning_c_in + def _get_conditioning_c_in(self, sigma): + c_in = 1 / ((sigma**2 + self.config.sigma_data**2) ** 0.5) + return c_in + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_edm_euler.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_edm_euler.py new file mode 100644 index 0000000000000000000000000000000000000000..0bf17356a7fa8bf8392b22b58d50920d9064ecc5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_edm_euler.py @@ -0,0 +1,486 @@ +# Copyright 2025 Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, logging +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->EulerDiscrete +class EDMEulerSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +class EDMEulerScheduler(SchedulerMixin, ConfigMixin): + """ + Implements the Euler scheduler in EDM formulation as presented in Karras et al. 2022 [1]. + + [1] Karras, Tero, et al. "Elucidating the Design Space of Diffusion-Based Generative Models." + https://huggingface.co/papers/2206.00364 + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + sigma_min (`float`, *optional*, defaults to 0.002): + Minimum noise magnitude in the sigma schedule. This was set to 0.002 in the EDM paper [1]; a reasonable + range is [0, 10]. + sigma_max (`float`, *optional*, defaults to 80.0): + Maximum noise magnitude in the sigma schedule. This was set to 80.0 in the EDM paper [1]; a reasonable + range is [0.2, 80.0]. + sigma_data (`float`, *optional*, defaults to 0.5): + The standard deviation of the data distribution. This is set to 0.5 in the EDM paper [1]. + sigma_schedule (`str`, *optional*, defaults to `karras`): + Sigma schedule to compute the `sigmas`. By default, we the schedule introduced in the EDM paper + (https://huggingface.co/papers/2206.00364). Other acceptable value is "exponential". The exponential + schedule was incorporated in this model: https://huggingface.co/stabilityai/cosxl. + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + rho (`float`, *optional*, defaults to 7.0): + The rho parameter used for calculating the Karras sigma schedule, which is set to 7.0 in the EDM paper [1]. + final_sigmas_type (`str`, defaults to `"zero"`): + The final `sigma` value for the noise schedule during the sampling process. If `"sigma_min"`, the final + sigma is the same as the last sigma in the training schedule. If `zero`, the final sigma is set to 0. + """ + + _compatibles = [] + order = 1 + + @register_to_config + def __init__( + self, + sigma_min: float = 0.002, + sigma_max: float = 80.0, + sigma_data: float = 0.5, + sigma_schedule: str = "karras", + num_train_timesteps: int = 1000, + prediction_type: str = "epsilon", + rho: float = 7.0, + final_sigmas_type: str = "zero", # can be "zero" or "sigma_min" + ): + if sigma_schedule not in ["karras", "exponential"]: + raise ValueError(f"Wrong value for provided for `{sigma_schedule=}`.`") + + # setable values + self.num_inference_steps = None + + sigmas_dtype = torch.float32 if torch.backends.mps.is_available() else torch.float64 + sigmas = torch.arange(num_train_timesteps + 1, dtype=sigmas_dtype) / num_train_timesteps + if sigma_schedule == "karras": + sigmas = self._compute_karras_sigmas(sigmas) + elif sigma_schedule == "exponential": + sigmas = self._compute_exponential_sigmas(sigmas) + sigmas = sigmas.to(torch.float32) + + self.timesteps = self.precondition_noise(sigmas) + + if self.config.final_sigmas_type == "sigma_min": + sigma_last = sigmas[-1] + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + + self.sigmas = torch.cat([sigmas, torch.full((1,), fill_value=sigma_last, device=sigmas.device)]) + + self.is_scale_input_called = False + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def init_noise_sigma(self): + # standard deviation of the initial noise distribution + return (self.config.sigma_max**2 + 1) ** 0.5 + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def precondition_inputs(self, sample, sigma): + c_in = self._get_conditioning_c_in(sigma) + scaled_sample = sample * c_in + return scaled_sample + + def precondition_noise(self, sigma): + if not isinstance(sigma, torch.Tensor): + sigma = torch.tensor([sigma]) + + c_noise = 0.25 * torch.log(sigma) + + return c_noise + + def precondition_outputs(self, sample, model_output, sigma): + sigma_data = self.config.sigma_data + c_skip = sigma_data**2 / (sigma**2 + sigma_data**2) + + if self.config.prediction_type == "epsilon": + c_out = sigma * sigma_data / (sigma**2 + sigma_data**2) ** 0.5 + elif self.config.prediction_type == "v_prediction": + c_out = -sigma * sigma_data / (sigma**2 + sigma_data**2) ** 0.5 + else: + raise ValueError(f"Prediction type {self.config.prediction_type} is not supported.") + + denoised = c_skip * sample + c_out * model_output + + return denoised + + def scale_model_input(self, sample: torch.Tensor, timestep: Union[float, torch.Tensor]) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. Scales the denoising model input by `(sigma**2 + 1) ** 0.5` to match the Euler algorithm. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sample = self.precondition_inputs(sample, sigma) + + self.is_scale_input_called = True + return sample + + def set_timesteps( + self, + num_inference_steps: int = None, + device: Union[str, torch.device] = None, + sigmas: Optional[Union[torch.Tensor, List[float]]] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + sigmas (`Union[torch.Tensor, List[float]]`, *optional*): + Custom sigmas to use for the denoising process. If not defined, the default behavior when + `num_inference_steps` is passed will be used. + """ + self.num_inference_steps = num_inference_steps + + sigmas_dtype = torch.float32 if torch.backends.mps.is_available() else torch.float64 + if sigmas is None: + sigmas = torch.linspace(0, 1, self.num_inference_steps, dtype=sigmas_dtype) + elif isinstance(sigmas, float): + sigmas = torch.tensor(sigmas, dtype=sigmas_dtype) + else: + sigmas = sigmas.to(sigmas_dtype) + if self.config.sigma_schedule == "karras": + sigmas = self._compute_karras_sigmas(sigmas) + elif self.config.sigma_schedule == "exponential": + sigmas = self._compute_exponential_sigmas(sigmas) + sigmas = sigmas.to(dtype=torch.float32, device=device) + + self.timesteps = self.precondition_noise(sigmas) + + if self.config.final_sigmas_type == "sigma_min": + sigma_last = sigmas[-1] + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + + self.sigmas = torch.cat([sigmas, torch.full((1,), fill_value=sigma_last, device=sigmas.device)]) + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Taken from https://github.com/crowsonkb/k-diffusion/blob/686dbad0f39640ea25c8a8c6a6e56bb40eacefa2/k_diffusion/sampling.py#L17 + def _compute_karras_sigmas(self, ramp, sigma_min=None, sigma_max=None) -> torch.Tensor: + """Constructs the noise schedule of Karras et al. (2022).""" + sigma_min = sigma_min or self.config.sigma_min + sigma_max = sigma_max or self.config.sigma_max + + rho = self.config.rho + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + def _compute_exponential_sigmas(self, ramp, sigma_min=None, sigma_max=None) -> torch.Tensor: + """Implementation closely follows k-diffusion. + + https://github.com/crowsonkb/k-diffusion/blob/6ab5146d4a5ef63901326489f31f1d8e7dd36b48/k_diffusion/sampling.py#L26 + """ + sigma_min = sigma_min or self.config.sigma_min + sigma_max = sigma_max or self.config.sigma_max + sigmas = torch.linspace(math.log(sigma_min), math.log(sigma_max), len(ramp)).exp().flip(0) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[float, torch.Tensor], + sample: torch.Tensor, + s_churn: float = 0.0, + s_tmin: float = 0.0, + s_tmax: float = float("inf"), + s_noise: float = 1.0, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + pred_original_sample: Optional[torch.Tensor] = None, + ) -> Union[EDMEulerSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + s_churn (`float`): + s_tmin (`float`): + s_tmax (`float`): + s_noise (`float`, defaults to 1.0): + Scaling factor for noise added to the sample. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_euler_discrete.EDMEulerSchedulerOutput`] or tuple. + + Returns: + [`~schedulers.scheduling_euler_discrete.EDMEulerSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_euler_discrete.EDMEulerSchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor. + """ + + if isinstance(timestep, (int, torch.IntTensor, torch.LongTensor)): + raise ValueError( + ( + "Passing integer indices (e.g. from `enumerate(timesteps)`) as timesteps to" + " `EDMEulerScheduler.step()` is not supported. Make sure to pass" + " one of the `scheduler.timesteps` as a timestep." + ), + ) + + if not self.is_scale_input_called: + logger.warning( + "The `scale_model_input` function should be called before `step` to ensure correct denoising. " + "See `StableDiffusionPipeline` for a usage example." + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # Upcast to avoid precision issues when computing prev_sample + sample = sample.to(torch.float32) + + sigma = self.sigmas[self.step_index] + + gamma = min(s_churn / (len(self.sigmas) - 1), 2**0.5 - 1) if s_tmin <= sigma <= s_tmax else 0.0 + + sigma_hat = sigma * (gamma + 1) + + if gamma > 0: + noise = randn_tensor( + model_output.shape, dtype=model_output.dtype, device=model_output.device, generator=generator + ) + eps = noise * s_noise + sample = sample + eps * (sigma_hat**2 - sigma**2) ** 0.5 + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if pred_original_sample is None: + pred_original_sample = self.precondition_outputs(sample, model_output, sigma_hat) + + # 2. Convert to an ODE derivative + derivative = (sample - pred_original_sample) / sigma_hat + + dt = self.sigmas[self.step_index + 1] - sigma_hat + + prev_sample = sample + derivative * dt + + # Cast sample back to model compatible dtype + prev_sample = prev_sample.to(model_output.dtype) + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return EDMEulerSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def _get_conditioning_c_in(self, sigma): + c_in = 1 / ((sigma**2 + self.config.sigma_data**2) ** 0.5) + return c_in + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_ancestral_discrete.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_ancestral_discrete.py new file mode 100644 index 0000000000000000000000000000000000000000..8f39507301ce97675cd53e9bdfecefc3c81c44f9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_ancestral_discrete.py @@ -0,0 +1,521 @@ +# Copyright 2025 Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, logging +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->EulerAncestralDiscrete +class EulerAncestralDiscreteSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas): + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class EulerAncestralDiscreteScheduler(SchedulerMixin, ConfigMixin): + """ + Ancestral sampling with Euler method steps. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear` or `scaled_linear`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + prediction_type: str = "epsilon", + timestep_spacing: str = "linspace", + steps_offset: int = 0, + rescale_betas_zero_snr: bool = False, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + if rescale_betas_zero_snr: + # Close to 0 without being 0 so first sigma is not inf + # FP16 smallest positive subnormal works well here + self.alphas_cumprod[-1] = 2**-24 + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + sigmas = np.concatenate([sigmas[::-1], [0.0]]).astype(np.float32) + self.sigmas = torch.from_numpy(sigmas) + + # setable values + self.num_inference_steps = None + timesteps = np.linspace(0, num_train_timesteps - 1, num_train_timesteps, dtype=float)[::-1].copy() + self.timesteps = torch.from_numpy(timesteps) + self.is_scale_input_called = False + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def init_noise_sigma(self): + # standard deviation of the initial noise distribution + if self.config.timestep_spacing in ["linspace", "trailing"]: + return self.sigmas.max() + + return (self.sigmas.max() ** 2 + 1) ** 0.5 + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input(self, sample: torch.Tensor, timestep: Union[float, torch.Tensor]) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. Scales the denoising model input by `(sigma**2 + 1) ** 0.5` to match the Euler algorithm. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sample = sample / ((sigma**2 + 1) ** 0.5) + self.is_scale_input_called = True + return sample + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.num_inference_steps = num_inference_steps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps, dtype=np.float32)[ + ::-1 + ].copy() + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.float32) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(self.config.num_train_timesteps, 0, -step_ratio)).round().copy().astype(np.float32) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + sigmas = np.concatenate([sigmas, [0.0]]).astype(np.float32) + self.sigmas = torch.from_numpy(sigmas).to(device=device) + + self.timesteps = torch.from_numpy(timesteps).to(device=device) + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[float, torch.Tensor], + sample: torch.Tensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[EulerAncestralDiscreteSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`): + Whether or not to return a + [`~schedulers.scheduling_euler_ancestral_discrete.EulerAncestralDiscreteSchedulerOutput`] or tuple. + + Returns: + [`~schedulers.scheduling_euler_ancestral_discrete.EulerAncestralDiscreteSchedulerOutput`] or `tuple`: + If return_dict is `True`, + [`~schedulers.scheduling_euler_ancestral_discrete.EulerAncestralDiscreteSchedulerOutput`] is returned, + otherwise a tuple is returned where the first element is the sample tensor. + + """ + + if isinstance(timestep, (int, torch.IntTensor, torch.LongTensor)): + raise ValueError( + ( + "Passing integer indices (e.g. from `enumerate(timesteps)`) as timesteps to" + " `EulerDiscreteScheduler.step()` is not supported. Make sure to pass" + " one of the `scheduler.timesteps` as a timestep." + ), + ) + + if not self.is_scale_input_called: + logger.warning( + "The `scale_model_input` function should be called before `step` to ensure correct denoising. " + "See `StableDiffusionPipeline` for a usage example." + ) + + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + + # Upcast to avoid precision issues when computing prev_sample + sample = sample.to(torch.float32) + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if self.config.prediction_type == "epsilon": + pred_original_sample = sample - sigma * model_output + elif self.config.prediction_type == "v_prediction": + # * c_out + input * c_skip + pred_original_sample = model_output * (-sigma / (sigma**2 + 1) ** 0.5) + (sample / (sigma**2 + 1)) + elif self.config.prediction_type == "sample": + raise NotImplementedError("prediction_type not implemented yet: sample") + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + sigma_from = self.sigmas[self.step_index] + sigma_to = self.sigmas[self.step_index + 1] + sigma_up = (sigma_to**2 * (sigma_from**2 - sigma_to**2) / sigma_from**2) ** 0.5 + sigma_down = (sigma_to**2 - sigma_up**2) ** 0.5 + + # 2. Convert to an ODE derivative + derivative = (sample - pred_original_sample) / sigma + + dt = sigma_down - sigma + + prev_sample = sample + derivative * dt + + device = model_output.device + noise = randn_tensor(model_output.shape, dtype=model_output.dtype, device=device, generator=generator) + + prev_sample = prev_sample + noise * sigma_up + + # Cast sample back to model compatible dtype + prev_sample = prev_sample.to(model_output.dtype) + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return EulerAncestralDiscreteSchedulerOutput( + prev_sample=prev_sample, pred_original_sample=pred_original_sample + ) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_discrete.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_discrete.py new file mode 100644 index 0000000000000000000000000000000000000000..5ea926c4ca3821be0884dcc56fb51d641be5e40f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_discrete.py @@ -0,0 +1,899 @@ +# Copyright 2025 Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, is_scipy_available, logging +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +if is_scipy_available(): + import scipy.stats + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->EulerDiscrete +class EulerDiscreteSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas: torch.Tensor) -> torch.Tensor: + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class EulerDiscreteScheduler(SchedulerMixin, ConfigMixin): + """ + Euler scheduler. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`Literal["linear", "scaled_linear", "squaredcos_cap_v2"]`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `"linear"`, `"scaled_linear"`, or `"squaredcos_cap_v2"`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + prediction_type (`Literal["epsilon", "sample", "v_prediction"]`, defaults to `"epsilon"`, *optional*): + Prediction type of the scheduler function; can be `"epsilon"` (predicts the noise of the diffusion + process), `"sample"` (directly predicts the noisy sample`) or `"v_prediction"` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + interpolation_type (`Literal["linear", "log_linear"]`, defaults to `"linear"`, *optional*): + The interpolation type to compute intermediate sigmas for the scheduler denoising steps. Should be one of + `"linear"` or `"log_linear"`. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + sigma_min (`float`, *optional*): + The minimum sigma value for the noise schedule. If not provided, defaults to the last sigma in the + schedule. + sigma_max (`float`, *optional*): + The maximum sigma value for the noise schedule. If not provided, defaults to the first sigma in the + schedule. + timestep_spacing (`Literal["linspace", "leading", "trailing"]`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + timestep_type (`Literal["discrete", "continuous"]`, defaults to `"discrete"`): + The type of timesteps to use. Can be `"discrete"` or `"continuous"`. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + final_sigmas_type (`Literal["zero", "sigma_min"]`, defaults to `"zero"`): + The final `sigma` value for the noise schedule during the sampling process. If `"sigma_min"`, the final + sigma is the same as the last sigma in the training schedule. If `"zero"`, the final sigma is set to 0. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: Literal["linear", "scaled_linear", "squaredcos_cap_v2"] = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + prediction_type: Literal["epsilon", "sample", "v_prediction"] = "epsilon", + interpolation_type: Literal["linear", "log_linear"] = "linear", + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + sigma_min: Optional[float] = None, + sigma_max: Optional[float] = None, + timestep_spacing: Literal["linspace", "leading", "trailing"] = "linspace", + timestep_type: Literal["discrete", "continuous"] = "discrete", + steps_offset: int = 0, + rescale_betas_zero_snr: bool = False, + final_sigmas_type: Literal["zero", "sigma_min"] = "zero", + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + if rescale_betas_zero_snr: + # Close to 0 without being 0 so first sigma is not inf + # FP16 smallest positive subnormal works well here + self.alphas_cumprod[-1] = 2**-24 + + sigmas = (((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5).flip(0) + timesteps = np.linspace(0, num_train_timesteps - 1, num_train_timesteps, dtype=float)[::-1].copy() + timesteps = torch.from_numpy(timesteps).to(dtype=torch.float32) + + # setable values + self.num_inference_steps = None + + # TODO: Support the full EDM scalings for all prediction types and timestep types + if timestep_type == "continuous" and prediction_type == "v_prediction": + self.timesteps = torch.Tensor([0.25 * sigma.log() for sigma in sigmas]) + else: + self.timesteps = timesteps + + self.sigmas = torch.cat([sigmas, torch.zeros(1, device=sigmas.device)]) + + self.is_scale_input_called = False + self.use_karras_sigmas = use_karras_sigmas + self.use_exponential_sigmas = use_exponential_sigmas + self.use_beta_sigmas = use_beta_sigmas + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def init_noise_sigma(self) -> Union[float, torch.Tensor]: + """ + The standard deviation of the initial noise distribution. + + Returns: + `float` or `torch.Tensor`: + The standard deviation of the initial noise distribution, computed based on the maximum sigma value and + the timestep spacing configuration. + """ + max_sigma = max(self.sigmas) if isinstance(self.sigmas, list) else self.sigmas.max() + if self.config.timestep_spacing in ["linspace", "trailing"]: + return max_sigma + + return (max_sigma**2 + 1) ** 0.5 + + @property + def step_index(self) -> Optional[int]: + """ + The index counter for current timestep. It will increase by 1 after each scheduler step. + + Returns: + `int` or `None`: + The current step index, or `None` if not initialized. + """ + return self._step_index + + @property + def begin_index(self) -> Optional[int]: + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + + Returns: + `int` or `None`: + The begin index for the scheduler, or `None` if not set. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0) -> None: + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input(self, sample: torch.Tensor, timestep: Union[float, torch.Tensor]) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. Scales the denoising model input by `(sigma**2 + 1) ** 0.5` to match the Euler algorithm. + + Args: + sample (`torch.Tensor`): + The input sample to be scaled. + timestep (`float` or `torch.Tensor`): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample, divided by `(sigma**2 + 1) ** 0.5`. + """ + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sample = sample / ((sigma**2 + 1) ** 0.5) + + self.is_scale_input_called = True + return sample + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + ) -> None: + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`, *optional*): + The number of diffusion steps used when generating samples with a pre-trained model. If `None`, + `timesteps` or `sigmas` must be provided. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary timesteps schedule. If `None`, timesteps will be generated + based on the `timestep_spacing` attribute. If `timesteps` is passed, `num_inference_steps` and `sigmas` + must be `None`, and `timestep_spacing` attribute will be ignored. + sigmas (`List[float]`, *optional*): + Custom sigmas used to support arbitrary timesteps schedule. If `None`, timesteps and sigmas will be + generated based on the relevant scheduler attributes. If `sigmas` is passed, `num_inference_steps` and + `timesteps` must be `None`, and the timesteps will be generated based on the custom sigmas schedule. + """ + + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` should be set.") + if num_inference_steps is None and timesteps is None and sigmas is None: + raise ValueError("Must pass exactly one of `num_inference_steps` or `timesteps` or `sigmas.") + if num_inference_steps is not None and (timesteps is not None or sigmas is not None): + raise ValueError("Can only pass one of `num_inference_steps` or `timesteps` or `sigmas`.") + if timesteps is not None and self.config.use_karras_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_karras_sigmas = True`.") + if timesteps is not None and self.config.use_exponential_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_exponential_sigmas = True`.") + if timesteps is not None and self.config.use_beta_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_beta_sigmas = True`.") + if ( + timesteps is not None + and self.config.timestep_type == "continuous" + and self.config.prediction_type == "v_prediction" + ): + raise ValueError( + "Cannot set `timesteps` with `config.timestep_type = 'continuous'` and `config.prediction_type = 'v_prediction'`." + ) + + if num_inference_steps is None: + num_inference_steps = len(timesteps) if timesteps is not None else len(sigmas) - 1 + self.num_inference_steps = num_inference_steps + + if sigmas is not None: + log_sigmas = np.log(np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5)) + sigmas = np.array(sigmas).astype(np.float32) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas[:-1]]) + + else: + if timesteps is not None: + timesteps = np.array(timesteps).astype(np.float32) + else: + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = np.linspace( + 0, self.config.num_train_timesteps - 1, num_inference_steps, dtype=np.float32 + )[::-1].copy() + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = ( + (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.float32) + ) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = ( + (np.arange(self.config.num_train_timesteps, 0, -step_ratio)).round().copy().astype(np.float32) + ) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + if self.config.interpolation_type == "linear": + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + elif self.config.interpolation_type == "log_linear": + sigmas = torch.linspace(np.log(sigmas[-1]), np.log(sigmas[0]), num_inference_steps + 1).exp().numpy() + else: + raise ValueError( + f"{self.config.interpolation_type} is not implemented. Please specify interpolation_type to either" + " 'linear' or 'log_linear'" + ) + + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=self.num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + + if self.config.final_sigmas_type == "sigma_min": + sigma_last = ((1 - self.alphas_cumprod[0]) / self.alphas_cumprod[0]) ** 0.5 + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + + sigmas = torch.from_numpy(sigmas).to(dtype=torch.float32, device=device) + + # TODO: Support the full EDM scalings for all prediction types and timestep types + if self.config.timestep_type == "continuous" and self.config.prediction_type == "v_prediction": + self.timesteps = torch.Tensor([0.25 * sigma.log() for sigma in sigmas[:-1]]).to(device=device) + else: + self.timesteps = torch.from_numpy(timesteps.astype(np.float32)).to(device=device) + + self._step_index = None + self._begin_index = None + self.sigmas = sigmas.to("cpu") # to avoid too much CPU/GPU communication + + def _sigma_to_t(self, sigma: np.ndarray, log_sigmas: np.ndarray) -> np.ndarray: + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from https://github.com/crowsonkb/k-diffusion/blob/686dbad0f39640ea25c8a8c6a6e56bb40eacefa2/k_diffusion/sampling.py#L17 + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from https://github.com/crowsonkb/k-diffusion/blob/686dbad0f39640ea25c8a8c6a6e56bb40eacefa2/k_diffusion/sampling.py#L26 + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[float, torch.Tensor], + sample: torch.Tensor, + s_churn: float = 0.0, + s_tmin: float = 0.0, + s_tmax: float = float("inf"), + s_noise: float = 1.0, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[EulerDiscreteSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + timestep (`float` or `torch.Tensor`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + s_churn (`float`, *optional*, defaults to `0.0`): + Stochasticity parameter that controls the amount of noise added during sampling. Higher values increase + randomness. + s_tmin (`float`, *optional*, defaults to `0.0`): + Minimum timestep threshold for applying stochasticity. Only timesteps above this value will have noise + added. + s_tmax (`float`, *optional*, defaults to `inf`): + Maximum timestep threshold for applying stochasticity. Only timesteps below this value will have noise + added. + s_noise (`float`, *optional*, defaults to `1.0`): + Scaling factor for noise added to the sample. + generator (`torch.Generator`, *optional*): + A random number generator for reproducible sampling. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_euler_discrete.EulerDiscreteSchedulerOutput`] or + tuple. + + Returns: + [`~schedulers.scheduling_euler_discrete.EulerDiscreteSchedulerOutput`] or `tuple`: + If `return_dict` is `True`, [`~schedulers.scheduling_euler_discrete.EulerDiscreteSchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor and the second + element is the predicted original sample. + """ + + if isinstance(timestep, (int, torch.IntTensor, torch.LongTensor)): + raise ValueError( + ( + "Passing integer indices (e.g. from `enumerate(timesteps)`) as timesteps to" + " `EulerDiscreteScheduler.step()` is not supported. Make sure to pass" + " one of the `scheduler.timesteps` as a timestep." + ), + ) + + if not self.is_scale_input_called: + logger.warning( + "The `scale_model_input` function should be called before `step` to ensure correct denoising. " + "See `StableDiffusionPipeline` for a usage example." + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # Upcast to avoid precision issues when computing prev_sample + sample = sample.to(torch.float32) + + sigma = self.sigmas[self.step_index] + + gamma = min(s_churn / (len(self.sigmas) - 1), 2**0.5 - 1) if s_tmin <= sigma <= s_tmax else 0.0 + + sigma_hat = sigma * (gamma + 1) + + if gamma > 0: + noise = randn_tensor( + model_output.shape, dtype=model_output.dtype, device=model_output.device, generator=generator + ) + eps = noise * s_noise + sample = sample + eps * (sigma_hat**2 - sigma**2) ** 0.5 + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + # NOTE: "original_sample" should not be an expected prediction_type but is left in for + # backwards compatibility + if self.config.prediction_type == "original_sample" or self.config.prediction_type == "sample": + pred_original_sample = model_output + elif self.config.prediction_type == "epsilon": + pred_original_sample = sample - sigma_hat * model_output + elif self.config.prediction_type == "v_prediction": + # denoised = model_output * c_out + input * c_skip + pred_original_sample = model_output * (-sigma / (sigma**2 + 1) ** 0.5) + (sample / (sigma**2 + 1)) + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + # 2. Convert to an ODE derivative + derivative = (sample - pred_original_sample) / sigma_hat + + dt = self.sigmas[self.step_index + 1] - sigma_hat + + prev_sample = sample + derivative * dt + + # Cast sample back to model compatible dtype + prev_sample = prev_sample.to(model_output.dtype) + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return EulerDiscreteSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.Tensor) -> torch.Tensor: + """ + Compute the velocity prediction for the given sample and noise at the specified timesteps. + + This method implements the velocity prediction used in v-prediction models, which predicts a linear combination + of the sample and noise. + + Args: + sample (`torch.Tensor`): + The input sample for which to compute the velocity. + noise (`torch.Tensor`): + The noise tensor corresponding to the sample. + timesteps (`torch.Tensor`): + The timesteps at which to compute the velocity. + + Returns: + `torch.Tensor`: + The velocity prediction computed as `sqrt(alpha_prod) * noise - sqrt(1 - alpha_prod) * sample`. + """ + if ( + isinstance(timesteps, int) + or isinstance(timesteps, torch.IntTensor) + or isinstance(timesteps, torch.LongTensor) + ): + raise ValueError( + ( + "Passing integer indices (e.g. from `enumerate(timesteps)`) as timesteps to" + " `EulerDiscreteScheduler.get_velocity()` is not supported. Make sure to pass" + " one of the `scheduler.timesteps` as a timestep." + ), + ) + + if sample.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(sample.device, dtype=torch.float32) + timesteps = timesteps.to(sample.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(sample.device) + timesteps = timesteps.to(sample.device) + + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + alphas_cumprod = self.alphas_cumprod.to(sample) + sqrt_alpha_prod = alphas_cumprod[step_indices] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[step_indices]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self) -> int: + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_discrete_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_discrete_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..dae01302ac6a440f7903cf8b1e22da250b9a3434 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_euler_discrete_flax.py @@ -0,0 +1,265 @@ +# Copyright 2025 Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import flax +import jax.numpy as jnp + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils_flax import ( + CommonSchedulerState, + FlaxKarrasDiffusionSchedulers, + FlaxSchedulerMixin, + FlaxSchedulerOutput, + broadcast_to_shape_from_left, +) + + +@flax.struct.dataclass +class EulerDiscreteSchedulerState: + common: CommonSchedulerState + + # setable values + init_noise_sigma: jnp.ndarray + timesteps: jnp.ndarray + sigmas: jnp.ndarray + num_inference_steps: Optional[int] = None + + @classmethod + def create( + cls, common: CommonSchedulerState, init_noise_sigma: jnp.ndarray, timesteps: jnp.ndarray, sigmas: jnp.ndarray + ): + return cls(common=common, init_noise_sigma=init_noise_sigma, timesteps=timesteps, sigmas=sigmas) + + +@dataclass +class FlaxEulerDiscreteSchedulerOutput(FlaxSchedulerOutput): + state: EulerDiscreteSchedulerState + + +class FlaxEulerDiscreteScheduler(FlaxSchedulerMixin, ConfigMixin): + """ + Euler scheduler (Algorithm 2) from Karras et al. (2022) https://huggingface.co/papers/2206.00364. . Based on the + original k-diffusion implementation by Katherine Crowson: + https://github.com/crowsonkb/k-diffusion/blob/481677d114f6ea445aa009cf5bd7a9cdee909e47/k_diffusion/sampling.py#L51 + + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + beta_start (`float`): the starting `beta` value of inference. + beta_end (`float`): the final `beta` value. + beta_schedule (`str`): + the beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear` or `scaled_linear`. + trained_betas (`jnp.ndarray`, optional): + option to pass an array of betas directly to the constructor to bypass `beta_start`, `beta_end` etc. + prediction_type (`str`, default `epsilon`, optional): + prediction type of the scheduler function, one of `epsilon` (predicting the noise of the diffusion + process), `sample` (directly predicting the noisy sample`) or `v_prediction` (see section 2.4 + https://imagen.research.google/video/paper.pdf) + dtype (`jnp.dtype`, *optional*, defaults to `jnp.float32`): + the `dtype` used for params and computation. + """ + + _compatibles = [e.name for e in FlaxKarrasDiffusionSchedulers] + + dtype: jnp.dtype + + @property + def has_state(self): + return True + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[jnp.ndarray] = None, + prediction_type: str = "epsilon", + timestep_spacing: str = "linspace", + dtype: jnp.dtype = jnp.float32, + ): + self.dtype = dtype + + def create_state(self, common: Optional[CommonSchedulerState] = None) -> EulerDiscreteSchedulerState: + if common is None: + common = CommonSchedulerState.create(self) + + timesteps = jnp.arange(0, self.config.num_train_timesteps).round()[::-1] + sigmas = ((1 - common.alphas_cumprod) / common.alphas_cumprod) ** 0.5 + sigmas = jnp.interp(timesteps, jnp.arange(0, len(sigmas)), sigmas) + sigmas = jnp.concatenate([sigmas, jnp.array([0.0], dtype=self.dtype)]) + + # standard deviation of the initial noise distribution + if self.config.timestep_spacing in ["linspace", "trailing"]: + init_noise_sigma = sigmas.max() + else: + init_noise_sigma = (sigmas.max() ** 2 + 1) ** 0.5 + + return EulerDiscreteSchedulerState.create( + common=common, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + sigmas=sigmas, + ) + + def scale_model_input(self, state: EulerDiscreteSchedulerState, sample: jnp.ndarray, timestep: int) -> jnp.ndarray: + """ + Scales the denoising model input by `(sigma**2 + 1) ** 0.5` to match the Euler algorithm. + + Args: + state (`EulerDiscreteSchedulerState`): + the `FlaxEulerDiscreteScheduler` state data class instance. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + timestep (`int`): + current discrete timestep in the diffusion chain. + + Returns: + `jnp.ndarray`: scaled input sample + """ + (step_index,) = jnp.where(state.timesteps == timestep, size=1) + step_index = step_index[0] + + sigma = state.sigmas[step_index] + sample = sample / ((sigma**2 + 1) ** 0.5) + return sample + + def set_timesteps( + self, state: EulerDiscreteSchedulerState, num_inference_steps: int, shape: Tuple = () + ) -> EulerDiscreteSchedulerState: + """ + Sets the timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + state (`EulerDiscreteSchedulerState`): + the `FlaxEulerDiscreteScheduler` state data class instance. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + """ + + if self.config.timestep_spacing == "linspace": + timesteps = jnp.linspace(self.config.num_train_timesteps - 1, 0, num_inference_steps, dtype=self.dtype) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // num_inference_steps + timesteps = (jnp.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(float) + timesteps += 1 + else: + raise ValueError( + f"timestep_spacing must be one of ['linspace', 'leading'], got {self.config.timestep_spacing}" + ) + + sigmas = ((1 - state.common.alphas_cumprod) / state.common.alphas_cumprod) ** 0.5 + sigmas = jnp.interp(timesteps, jnp.arange(0, len(sigmas)), sigmas) + sigmas = jnp.concatenate([sigmas, jnp.array([0.0], dtype=self.dtype)]) + + # standard deviation of the initial noise distribution + if self.config.timestep_spacing in ["linspace", "trailing"]: + init_noise_sigma = sigmas.max() + else: + init_noise_sigma = (sigmas.max() ** 2 + 1) ** 0.5 + + return state.replace( + timesteps=timesteps, + sigmas=sigmas, + num_inference_steps=num_inference_steps, + init_noise_sigma=init_noise_sigma, + ) + + def step( + self, + state: EulerDiscreteSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + return_dict: bool = True, + ) -> Union[FlaxEulerDiscreteSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + state (`EulerDiscreteSchedulerState`): + the `FlaxEulerDiscreteScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + order: coefficient for multi-step inference. + return_dict (`bool`): option for returning tuple rather than FlaxEulerDiscreteScheduler class + + Returns: + [`FlaxEulerDiscreteScheduler`] or `tuple`: [`FlaxEulerDiscreteScheduler`] if `return_dict` is True, + otherwise a `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + if state.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + (step_index,) = jnp.where(state.timesteps == timestep, size=1) + step_index = step_index[0] + + sigma = state.sigmas[step_index] + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if self.config.prediction_type == "epsilon": + pred_original_sample = sample - sigma * model_output + elif self.config.prediction_type == "v_prediction": + # * c_out + input * c_skip + pred_original_sample = model_output * (-sigma / (sigma**2 + 1) ** 0.5) + (sample / (sigma**2 + 1)) + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + # 2. Convert to an ODE derivative + derivative = (sample - pred_original_sample) / sigma + + # dt = sigma_down - sigma + dt = state.sigmas[step_index + 1] - sigma + + prev_sample = sample + derivative * dt + + if not return_dict: + return (prev_sample, state) + + return FlaxEulerDiscreteSchedulerOutput(prev_sample=prev_sample, state=state) + + def add_noise( + self, + state: EulerDiscreteSchedulerState, + original_samples: jnp.ndarray, + noise: jnp.ndarray, + timesteps: jnp.ndarray, + ) -> jnp.ndarray: + sigma = state.sigmas[timesteps].flatten() + sigma = broadcast_to_shape_from_left(sigma, noise.shape) + + noisy_samples = original_samples + noise * sigma + + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_euler_discrete.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_euler_discrete.py new file mode 100644 index 0000000000000000000000000000000000000000..9fd61d9e18d17d2af3b3ab1573ef5faf9b2295c4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_euler_discrete.py @@ -0,0 +1,603 @@ +# Copyright 2025 Stability AI, Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, is_scipy_available, logging +from .scheduling_utils import SchedulerMixin + + +if is_scipy_available(): + import scipy.stats + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +class FlowMatchEulerDiscreteSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: torch.FloatTensor + + +class FlowMatchEulerDiscreteScheduler(SchedulerMixin, ConfigMixin): + """ + Euler scheduler. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + shift (`float`, defaults to 1.0): + The shift value for the timestep schedule. + use_dynamic_shifting (`bool`, defaults to False): + Whether to apply timestep shifting on-the-fly based on the image resolution. + base_shift (`float`, defaults to 0.5): + Value to stabilize image generation. Increasing `base_shift` reduces variation and image is more consistent + with desired output. + max_shift (`float`, defaults to 1.15): + Value change allowed to latent vectors. Increasing `max_shift` encourages more variation and image may be + more exaggerated or stylized. + base_image_seq_len (`int`, defaults to 256): + The base image sequence length. + max_image_seq_len (`int`, defaults to 4096): + The maximum image sequence length. + invert_sigmas (`bool`, defaults to False): + Whether to invert the sigmas. + shift_terminal (`float`, defaults to None): + The end value of the shifted timestep schedule. + use_karras_sigmas (`bool`, defaults to False): + Whether to use Karras sigmas for step sizes in the noise schedule during sampling. + use_exponential_sigmas (`bool`, defaults to False): + Whether to use exponential sigmas for step sizes in the noise schedule during sampling. + use_beta_sigmas (`bool`, defaults to False): + Whether to use beta sigmas for step sizes in the noise schedule during sampling. + time_shift_type (`str`, defaults to "exponential"): + The type of dynamic resolution-dependent timestep shifting to apply. Either "exponential" or "linear". + stochastic_sampling (`bool`, defaults to False): + Whether to use stochastic sampling. + """ + + _compatibles = [] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + shift: float = 1.0, + use_dynamic_shifting: bool = False, + base_shift: Optional[float] = 0.5, + max_shift: Optional[float] = 1.15, + base_image_seq_len: Optional[int] = 256, + max_image_seq_len: Optional[int] = 4096, + invert_sigmas: bool = False, + shift_terminal: Optional[float] = None, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + time_shift_type: str = "exponential", + stochastic_sampling: bool = False, + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if time_shift_type not in {"exponential", "linear"}: + raise ValueError("`time_shift_type` must either be 'exponential' or 'linear'.") + + timesteps = np.linspace(1, num_train_timesteps, num_train_timesteps, dtype=np.float32)[::-1].copy() + timesteps = torch.from_numpy(timesteps).to(dtype=torch.float32) + + sigmas = timesteps / num_train_timesteps + if not use_dynamic_shifting: + # when use_dynamic_shifting is True, we apply the timestep shifting on the fly based on the image resolution + sigmas = shift * sigmas / (1 + (shift - 1) * sigmas) + + self.timesteps = sigmas * num_train_timesteps + + self._step_index = None + self._begin_index = None + + self._shift = shift + + self.sigmas = sigmas.to("cpu") # to avoid too much CPU/GPU communication + self.sigma_min = self.sigmas[-1].item() + self.sigma_max = self.sigmas[0].item() + + @property + def shift(self): + """ + The value used for shifting. + """ + return self._shift + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_shift(self, shift: float): + self._shift = shift + + def scale_noise( + self, + sample: torch.FloatTensor, + timestep: Union[float, torch.FloatTensor], + noise: Optional[torch.FloatTensor] = None, + ) -> torch.FloatTensor: + """ + Forward process in flow-matching + + Args: + sample (`torch.FloatTensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.FloatTensor`: + A scaled input sample. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=sample.device, dtype=sample.dtype) + + if sample.device.type == "mps" and torch.is_floating_point(timestep): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(sample.device, dtype=torch.float32) + timestep = timestep.to(sample.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(sample.device) + timestep = timestep.to(sample.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timestep] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timestep.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timestep.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(sample.shape): + sigma = sigma.unsqueeze(-1) + + sample = sigma * noise + (1.0 - sigma) * sample + + return sample + + def _sigma_to_t(self, sigma): + return sigma * self.config.num_train_timesteps + + def time_shift(self, mu: float, sigma: float, t: torch.Tensor): + if self.config.time_shift_type == "exponential": + return self._time_shift_exponential(mu, sigma, t) + elif self.config.time_shift_type == "linear": + return self._time_shift_linear(mu, sigma, t) + + def stretch_shift_to_terminal(self, t: torch.Tensor) -> torch.Tensor: + r""" + Stretches and shifts the timestep schedule to ensure it terminates at the configured `shift_terminal` config + value. + + Reference: + https://github.com/Lightricks/LTX-Video/blob/a01a171f8fe3d99dce2728d60a73fecf4d4238ae/ltx_video/schedulers/rf.py#L51 + + Args: + t (`torch.Tensor`): + A tensor of timesteps to be stretched and shifted. + + Returns: + `torch.Tensor`: + A tensor of adjusted timesteps such that the final value equals `self.config.shift_terminal`. + """ + one_minus_z = 1 - t + scale_factor = one_minus_z[-1] / (1 - self.config.shift_terminal) + stretched_t = 1 - (one_minus_z / scale_factor) + return stretched_t + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + sigmas: Optional[List[float]] = None, + mu: Optional[float] = None, + timesteps: Optional[List[float]] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`, *optional*): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + sigmas (`List[float]`, *optional*): + Custom values for sigmas to be used for each diffusion step. If `None`, the sigmas are computed + automatically. + mu (`float`, *optional*): + Determines the amount of shifting applied to sigmas when performing resolution-dependent timestep + shifting. + timesteps (`List[float]`, *optional*): + Custom values for timesteps to be used for each diffusion step. If `None`, the timesteps are computed + automatically. + """ + if self.config.use_dynamic_shifting and mu is None: + raise ValueError("`mu` must be passed when `use_dynamic_shifting` is set to be `True`") + + if sigmas is not None and timesteps is not None: + if len(sigmas) != len(timesteps): + raise ValueError("`sigmas` and `timesteps` should have the same length") + + if num_inference_steps is not None: + if (sigmas is not None and len(sigmas) != num_inference_steps) or ( + timesteps is not None and len(timesteps) != num_inference_steps + ): + raise ValueError( + "`sigmas` and `timesteps` should have the same length as num_inference_steps, if `num_inference_steps` is provided" + ) + else: + num_inference_steps = len(sigmas) if sigmas is not None else len(timesteps) + + self.num_inference_steps = num_inference_steps + + # 1. Prepare default sigmas + is_timesteps_provided = timesteps is not None + + if is_timesteps_provided: + timesteps = np.array(timesteps).astype(np.float32) + + if sigmas is None: + if timesteps is None: + timesteps = np.linspace( + self._sigma_to_t(self.sigma_max), self._sigma_to_t(self.sigma_min), num_inference_steps + ) + sigmas = timesteps / self.config.num_train_timesteps + else: + sigmas = np.array(sigmas).astype(np.float32) + num_inference_steps = len(sigmas) + + # 2. Perform timestep shifting. Either no shifting is applied, or resolution-dependent shifting of + # "exponential" or "linear" type is applied + if self.config.use_dynamic_shifting: + sigmas = self.time_shift(mu, 1.0, sigmas) + else: + sigmas = self.shift * sigmas / (1 + (self.shift - 1) * sigmas) + + # 3. If required, stretch the sigmas schedule to terminate at the configured `shift_terminal` value + if self.config.shift_terminal: + sigmas = self.stretch_shift_to_terminal(sigmas) + + # 4. If required, convert sigmas to one of karras, exponential, or beta sigma schedules + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + + # 5. Convert sigmas and timesteps to tensors and move to specified device + sigmas = torch.from_numpy(sigmas).to(dtype=torch.float32, device=device) + if not is_timesteps_provided: + timesteps = sigmas * self.config.num_train_timesteps + else: + timesteps = torch.from_numpy(timesteps).to(dtype=torch.float32, device=device) + + # 6. Append the terminal sigma value. + # If a model requires inverted sigma schedule for denoising but timesteps without inversion, the + # `invert_sigmas` flag can be set to `True`. This case is only required in Mochi + if self.config.invert_sigmas: + sigmas = 1.0 - sigmas + timesteps = sigmas * self.config.num_train_timesteps + sigmas = torch.cat([sigmas, torch.ones(1, device=sigmas.device)]) + else: + sigmas = torch.cat([sigmas, torch.zeros(1, device=sigmas.device)]) + + self.timesteps = timesteps + self.sigmas = sigmas + self._step_index = None + self._begin_index = None + + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + def _init_step_index(self, timestep): + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.FloatTensor, + timestep: Union[float, torch.FloatTensor], + sample: torch.FloatTensor, + s_churn: float = 0.0, + s_tmin: float = 0.0, + s_tmax: float = float("inf"), + s_noise: float = 1.0, + generator: Optional[torch.Generator] = None, + per_token_timesteps: Optional[torch.Tensor] = None, + return_dict: bool = True, + ) -> Union[FlowMatchEulerDiscreteSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.FloatTensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.FloatTensor`): + A current instance of a sample created by the diffusion process. + s_churn (`float`): + s_tmin (`float`): + s_tmax (`float`): + s_noise (`float`, defaults to 1.0): + Scaling factor for noise added to the sample. + generator (`torch.Generator`, *optional*): + A random number generator. + per_token_timesteps (`torch.Tensor`, *optional*): + The timesteps for each token in the sample. + return_dict (`bool`): + Whether or not to return a + [`~schedulers.scheduling_flow_match_euler_discrete.FlowMatchEulerDiscreteSchedulerOutput`] or tuple. + + Returns: + [`~schedulers.scheduling_flow_match_euler_discrete.FlowMatchEulerDiscreteSchedulerOutput`] or `tuple`: + If return_dict is `True`, + [`~schedulers.scheduling_flow_match_euler_discrete.FlowMatchEulerDiscreteSchedulerOutput`] is returned, + otherwise a tuple is returned where the first element is the sample tensor. + """ + + if ( + isinstance(timestep, int) + or isinstance(timestep, torch.IntTensor) + or isinstance(timestep, torch.LongTensor) + ): + raise ValueError( + ( + "Passing integer indices (e.g. from `enumerate(timesteps)`) as timesteps to" + " `FlowMatchEulerDiscreteScheduler.step()` is not supported. Make sure to pass" + " one of the `scheduler.timesteps` as a timestep." + ), + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # Upcast to avoid precision issues when computing prev_sample + sample = sample.to(torch.float32) + + if per_token_timesteps is not None: + per_token_sigmas = per_token_timesteps / self.config.num_train_timesteps + + sigmas = self.sigmas[:, None, None] + lower_mask = sigmas < per_token_sigmas[None] - 1e-6 + lower_sigmas = lower_mask * sigmas + lower_sigmas, _ = lower_sigmas.max(dim=0) + + current_sigma = per_token_sigmas[..., None] + next_sigma = lower_sigmas[..., None] + dt = current_sigma - next_sigma + else: + sigma_idx = self.step_index + sigma = self.sigmas[sigma_idx] + sigma_next = self.sigmas[sigma_idx + 1] + + current_sigma = sigma + next_sigma = sigma_next + dt = sigma_next - sigma + + if self.config.stochastic_sampling: + x0 = sample - current_sigma * model_output + noise = torch.randn_like(sample) + prev_sample = (1.0 - next_sigma) * x0 + next_sigma * noise + else: + prev_sample = sample + dt * model_output + + # upon completion increase step index by one + self._step_index += 1 + if per_token_timesteps is None: + # Cast sample back to model compatible dtype + prev_sample = prev_sample.to(model_output.dtype) + + if not return_dict: + return (prev_sample,) + + return FlowMatchEulerDiscreteSchedulerOutput(prev_sample=prev_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def _time_shift_exponential(self, mu, sigma, t): + return math.exp(mu) / (math.exp(mu) + (1 / t - 1) ** sigma) + + def _time_shift_linear(self, mu, sigma, t): + return mu / (mu + (1 / t - 1) ** sigma) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_heun_discrete.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_heun_discrete.py new file mode 100644 index 0000000000000000000000000000000000000000..6febee444c5a1a4b369877cbd8bb71dc3152be08 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_heun_discrete.py @@ -0,0 +1,321 @@ +# Copyright 2025 Stability AI, Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, logging +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +class FlowMatchHeunDiscreteSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: torch.FloatTensor + + +class FlowMatchHeunDiscreteScheduler(SchedulerMixin, ConfigMixin): + """ + Heun scheduler. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + shift (`float`, defaults to 1.0): + The shift value for the timestep schedule. + """ + + _compatibles = [] + order = 2 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + shift: float = 1.0, + ): + timesteps = np.linspace(1, num_train_timesteps, num_train_timesteps, dtype=np.float32)[::-1].copy() + timesteps = torch.from_numpy(timesteps).to(dtype=torch.float32) + + sigmas = timesteps / num_train_timesteps + sigmas = shift * sigmas / (1 + (shift - 1) * sigmas) + + self.timesteps = sigmas * num_train_timesteps + + self._step_index = None + self._begin_index = None + + self.sigmas = sigmas.to("cpu") # to avoid too much CPU/GPU communication + self.sigma_min = self.sigmas[-1].item() + self.sigma_max = self.sigmas[0].item() + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_noise( + self, + sample: torch.FloatTensor, + timestep: Union[float, torch.FloatTensor], + noise: Optional[torch.FloatTensor] = None, + ) -> torch.FloatTensor: + """ + Forward process in flow-matching + + Args: + sample (`torch.FloatTensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.FloatTensor`: + A scaled input sample. + """ + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sample = sigma * noise + (1.0 - sigma) * sample + + return sample + + def _sigma_to_t(self, sigma): + return sigma * self.config.num_train_timesteps + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.num_inference_steps = num_inference_steps + + timesteps = np.linspace( + self._sigma_to_t(self.sigma_max), self._sigma_to_t(self.sigma_min), num_inference_steps + ) + + sigmas = timesteps / self.config.num_train_timesteps + sigmas = self.config.shift * sigmas / (1 + (self.config.shift - 1) * sigmas) + sigmas = torch.from_numpy(sigmas).to(dtype=torch.float32, device=device) + + timesteps = sigmas * self.config.num_train_timesteps + timesteps = torch.cat([timesteps[:1], timesteps[1:].repeat_interleave(2)]) + self.timesteps = timesteps.to(device=device) + + sigmas = torch.cat([sigmas, torch.zeros(1, device=sigmas.device)]) + self.sigmas = torch.cat([sigmas[:1], sigmas[1:-1].repeat_interleave(2), sigmas[-1:]]) + + # empty dt and derivative + self.prev_derivative = None + self.dt = None + + self._step_index = None + self._begin_index = None + + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + def _init_step_index(self, timestep): + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + @property + def state_in_first_order(self): + return self.dt is None + + def step( + self, + model_output: torch.FloatTensor, + timestep: Union[float, torch.FloatTensor], + sample: torch.FloatTensor, + s_churn: float = 0.0, + s_tmin: float = 0.0, + s_tmax: float = float("inf"), + s_noise: float = 1.0, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[FlowMatchHeunDiscreteSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.FloatTensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.FloatTensor`): + A current instance of a sample created by the diffusion process. + s_churn (`float`): + s_tmin (`float`): + s_tmax (`float`): + s_noise (`float`, defaults to 1.0): + Scaling factor for noise added to the sample. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`): + Whether or not to return a + [`~schedulers.scheduling_flow_match_heun_discrete.FlowMatchHeunDiscreteSchedulerOutput`] tuple. + + Returns: + [`~schedulers.scheduling_flow_match_heun_discrete.FlowMatchHeunDiscreteSchedulerOutput`] or `tuple`: + If return_dict is `True`, + [`~schedulers.scheduling_flow_match_heun_discrete.FlowMatchHeunDiscreteSchedulerOutput`] is returned, + otherwise a tuple is returned where the first element is the sample tensor. + """ + + if ( + isinstance(timestep, int) + or isinstance(timestep, torch.IntTensor) + or isinstance(timestep, torch.LongTensor) + ): + raise ValueError( + ( + "Passing integer indices (e.g. from `enumerate(timesteps)`) as timesteps to" + " `FlowMatchHeunDiscreteScheduler.step()` is not supported. Make sure to pass" + " one of the `scheduler.timesteps` as a timestep." + ), + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # Upcast to avoid precision issues when computing prev_sample + sample = sample.to(torch.float32) + + if self.state_in_first_order: + sigma = self.sigmas[self.step_index] + sigma_next = self.sigmas[self.step_index + 1] + else: + # 2nd order / Heun's method + sigma = self.sigmas[self.step_index - 1] + sigma_next = self.sigmas[self.step_index] + + gamma = min(s_churn / (len(self.sigmas) - 1), 2**0.5 - 1) if s_tmin <= sigma <= s_tmax else 0.0 + + sigma_hat = sigma * (gamma + 1) + + if gamma > 0: + noise = randn_tensor( + model_output.shape, dtype=model_output.dtype, device=model_output.device, generator=generator + ) + eps = noise * s_noise + sample = sample + eps * (sigma_hat**2 - sigma**2) ** 0.5 + + if self.state_in_first_order: + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + denoised = sample - model_output * sigma + # 2. convert to an ODE derivative for 1st order + derivative = (sample - denoised) / sigma_hat + # 3. Delta timestep + dt = sigma_next - sigma_hat + + # store for 2nd order step + self.prev_derivative = derivative + self.dt = dt + self.sample = sample + else: + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + denoised = sample - model_output * sigma_next + # 2. 2nd order / Heun's method + derivative = (sample - denoised) / sigma_next + derivative = 0.5 * (self.prev_derivative + derivative) + + # 3. take prev timestep & sample + dt = self.dt + sample = self.sample + + # free dt and derivative + # Note, this puts the scheduler in "first order mode" + self.prev_derivative = None + self.dt = None + self.sample = None + + prev_sample = sample + derivative * dt + # Cast sample back to model compatible dtype + prev_sample = prev_sample.to(model_output.dtype) + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return FlowMatchHeunDiscreteSchedulerOutput(prev_sample=prev_sample) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_lcm.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_lcm.py new file mode 100644 index 0000000000000000000000000000000000000000..25186d1fe969e568ebbf521bb04ec46dac0faa86 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_flow_match_lcm.py @@ -0,0 +1,603 @@ +# Copyright 2025 Stability AI, Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, is_scipy_available, logging +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +if is_scipy_available(): + import scipy.stats + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +class FlowMatchLCMSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: torch.FloatTensor + + +class FlowMatchLCMScheduler(SchedulerMixin, ConfigMixin): + """ + LCM scheduler for Flow Matching. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + shift (`float`, defaults to 1.0): + The shift value for the timestep schedule. + use_dynamic_shifting (`bool`, defaults to False): + Whether to apply timestep shifting on-the-fly based on the image resolution. + base_shift (`float`, defaults to 0.5): + Value to stabilize image generation. Increasing `base_shift` reduces variation and image is more consistent + with desired output. + max_shift (`float`, defaults to 1.15): + Value change allowed to latent vectors. Increasing `max_shift` encourages more variation and image may be + more exaggerated or stylized. + base_image_seq_len (`int`, defaults to 256): + The base image sequence length. + max_image_seq_len (`int`, defaults to 4096): + The maximum image sequence length. + invert_sigmas (`bool`, defaults to False): + Whether to invert the sigmas. + shift_terminal (`float`, defaults to None): + The end value of the shifted timestep schedule. + use_karras_sigmas (`bool`, defaults to False): + Whether to use Karras sigmas for step sizes in the noise schedule during sampling. + use_exponential_sigmas (`bool`, defaults to False): + Whether to use exponential sigmas for step sizes in the noise schedule during sampling. + use_beta_sigmas (`bool`, defaults to False): + Whether to use beta sigmas for step sizes in the noise schedule during sampling. + time_shift_type (`str`, defaults to "exponential"): + The type of dynamic resolution-dependent timestep shifting to apply. Either "exponential" or "linear". + scale_factors ('list', defaults to None) + It defines how to scale the latents at which predictions are made. + upscale_mode ('str', defaults to 'bicubic') + Upscaling method, applied if scale-wise generation is considered + """ + + _compatibles = [] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + shift: float = 1.0, + use_dynamic_shifting: bool = False, + base_shift: Optional[float] = 0.5, + max_shift: Optional[float] = 1.15, + base_image_seq_len: Optional[int] = 256, + max_image_seq_len: Optional[int] = 4096, + invert_sigmas: bool = False, + shift_terminal: Optional[float] = None, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + time_shift_type: str = "exponential", + scale_factors: Optional[List[float]] = None, + upscale_mode: Optional[str] = "bicubic", + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if time_shift_type not in {"exponential", "linear"}: + raise ValueError("`time_shift_type` must either be 'exponential' or 'linear'.") + + timesteps = np.linspace(1, num_train_timesteps, num_train_timesteps, dtype=np.float32)[::-1].copy() + timesteps = torch.from_numpy(timesteps).to(dtype=torch.float32) + + sigmas = timesteps / num_train_timesteps + if not use_dynamic_shifting: + # when use_dynamic_shifting is True, we apply the timestep shifting on the fly based on the image resolution + sigmas = shift * sigmas / (1 + (shift - 1) * sigmas) + + self.timesteps = sigmas * num_train_timesteps + + self._step_index = None + self._begin_index = None + + self._shift = shift + + self._init_size = None + self._scale_factors = scale_factors + self._upscale_mode = upscale_mode + + self.sigmas = sigmas.to("cpu") # to avoid too much CPU/GPU communication + self.sigma_min = self.sigmas[-1].item() + self.sigma_max = self.sigmas[0].item() + + @property + def shift(self): + """ + The value used for shifting. + """ + return self._shift + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_shift(self, shift: float): + self._shift = shift + + def set_scale_factors(self, scale_factors: list, upscale_mode): + """ + Sets scale factors for a scale-wise generation regime. + + Args: + scale_factors (`list`): + The scale factors for each step + upscale_mode (`str`): + Upscaling method + """ + self._scale_factors = scale_factors + self._upscale_mode = upscale_mode + + def scale_noise( + self, + sample: torch.FloatTensor, + timestep: Union[float, torch.FloatTensor], + noise: Optional[torch.FloatTensor] = None, + ) -> torch.FloatTensor: + """ + Forward process in flow-matching + + Args: + sample (`torch.FloatTensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.FloatTensor`: + A scaled input sample. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=sample.device, dtype=sample.dtype) + + if sample.device.type == "mps" and torch.is_floating_point(timestep): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(sample.device, dtype=torch.float32) + timestep = timestep.to(sample.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(sample.device) + timestep = timestep.to(sample.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timestep] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timestep.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timestep.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(sample.shape): + sigma = sigma.unsqueeze(-1) + + sample = sigma * noise + (1.0 - sigma) * sample + + return sample + + def _sigma_to_t(self, sigma): + return sigma * self.config.num_train_timesteps + + def time_shift(self, mu: float, sigma: float, t: torch.Tensor): + if self.config.time_shift_type == "exponential": + return self._time_shift_exponential(mu, sigma, t) + elif self.config.time_shift_type == "linear": + return self._time_shift_linear(mu, sigma, t) + + def stretch_shift_to_terminal(self, t: torch.Tensor) -> torch.Tensor: + r""" + Stretches and shifts the timestep schedule to ensure it terminates at the configured `shift_terminal` config + value. + + Reference: + https://github.com/Lightricks/LTX-Video/blob/a01a171f8fe3d99dce2728d60a73fecf4d4238ae/ltx_video/schedulers/rf.py#L51 + + Args: + t (`torch.Tensor`): + A tensor of timesteps to be stretched and shifted. + + Returns: + `torch.Tensor`: + A tensor of adjusted timesteps such that the final value equals `self.config.shift_terminal`. + """ + one_minus_z = 1 - t + scale_factor = one_minus_z[-1] / (1 - self.config.shift_terminal) + stretched_t = 1 - (one_minus_z / scale_factor) + return stretched_t + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + sigmas: Optional[List[float]] = None, + mu: Optional[float] = None, + timesteps: Optional[List[float]] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`, *optional*): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + sigmas (`List[float]`, *optional*): + Custom values for sigmas to be used for each diffusion step. If `None`, the sigmas are computed + automatically. + mu (`float`, *optional*): + Determines the amount of shifting applied to sigmas when performing resolution-dependent timestep + shifting. + timesteps (`List[float]`, *optional*): + Custom values for timesteps to be used for each diffusion step. If `None`, the timesteps are computed + automatically. + """ + if self.config.use_dynamic_shifting and mu is None: + raise ValueError("`mu` must be passed when `use_dynamic_shifting` is set to be `True`") + + if sigmas is not None and timesteps is not None: + if len(sigmas) != len(timesteps): + raise ValueError("`sigmas` and `timesteps` should have the same length") + + if num_inference_steps is not None: + if (sigmas is not None and len(sigmas) != num_inference_steps) or ( + timesteps is not None and len(timesteps) != num_inference_steps + ): + raise ValueError( + "`sigmas` and `timesteps` should have the same length as num_inference_steps, if `num_inference_steps` is provided" + ) + else: + num_inference_steps = len(sigmas) if sigmas is not None else len(timesteps) + + self.num_inference_steps = num_inference_steps + + # 1. Prepare default sigmas + is_timesteps_provided = timesteps is not None + + if is_timesteps_provided: + timesteps = np.array(timesteps).astype(np.float32) + + if sigmas is None: + if timesteps is None: + timesteps = np.linspace( + self._sigma_to_t(self.sigma_max), self._sigma_to_t(self.sigma_min), num_inference_steps + ) + sigmas = timesteps / self.config.num_train_timesteps + else: + sigmas = np.array(sigmas).astype(np.float32) + num_inference_steps = len(sigmas) + + # 2. Perform timestep shifting. Either no shifting is applied, or resolution-dependent shifting of + # "exponential" or "linear" type is applied + if self.config.use_dynamic_shifting: + sigmas = self.time_shift(mu, 1.0, sigmas) + else: + sigmas = self.shift * sigmas / (1 + (self.shift - 1) * sigmas) + + # 3. If required, stretch the sigmas schedule to terminate at the configured `shift_terminal` value + if self.config.shift_terminal: + sigmas = self.stretch_shift_to_terminal(sigmas) + + # 4. If required, convert sigmas to one of karras, exponential, or beta sigma schedules + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + + # 5. Convert sigmas and timesteps to tensors and move to specified device + sigmas = torch.from_numpy(sigmas).to(dtype=torch.float32, device=device) + if not is_timesteps_provided: + timesteps = sigmas * self.config.num_train_timesteps + else: + timesteps = torch.from_numpy(timesteps).to(dtype=torch.float32, device=device) + + # 6. Append the terminal sigma value. + # If a model requires inverted sigma schedule for denoising but timesteps without inversion, the + # `invert_sigmas` flag can be set to `True`. This case is only required in Mochi + if self.config.invert_sigmas: + sigmas = 1.0 - sigmas + timesteps = sigmas * self.config.num_train_timesteps + sigmas = torch.cat([sigmas, torch.ones(1, device=sigmas.device)]) + else: + sigmas = torch.cat([sigmas, torch.zeros(1, device=sigmas.device)]) + + self.timesteps = timesteps + self.sigmas = sigmas + self._step_index = None + self._begin_index = None + + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + def _init_step_index(self, timestep): + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.FloatTensor, + timestep: Union[float, torch.FloatTensor], + sample: torch.FloatTensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[FlowMatchLCMSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.FloatTensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.FloatTensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_flow_match_lcm.FlowMatchLCMSchedulerOutput`] or + tuple. + + Returns: + [`~schedulers.scheduling_flow_match_lcm.FlowMatchLCMSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_flow_match_lcm.FlowMatchLCMSchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor. + """ + + if ( + isinstance(timestep, int) + or isinstance(timestep, torch.IntTensor) + or isinstance(timestep, torch.LongTensor) + ): + raise ValueError( + ( + "Passing integer indices (e.g. from `enumerate(timesteps)`) as timesteps to" + " `FlowMatchLCMScheduler.step()` is not supported. Make sure to pass" + " one of the `scheduler.timesteps` as a timestep." + ), + ) + + if self._scale_factors and self._upscale_mode and len(self.timesteps) != len(self._scale_factors) + 1: + raise ValueError( + "`_scale_factors` should have the same length as `timesteps` - 1, if `_scale_factors` are set." + ) + + if self._init_size is None or self.step_index is None: + self._init_size = model_output.size()[2:] + + if self.step_index is None: + self._init_step_index(timestep) + + # Upcast to avoid precision issues when computing prev_sample + sample = sample.to(torch.float32) + + sigma = self.sigmas[self.step_index] + sigma_next = self.sigmas[self.step_index + 1] + x0_pred = sample - sigma * model_output + + if self._scale_factors and self._upscale_mode: + if self._step_index < len(self._scale_factors): + size = [round(self._scale_factors[self._step_index] * size) for size in self._init_size] + x0_pred = torch.nn.functional.interpolate(x0_pred, size=size, mode=self._upscale_mode) + + noise = randn_tensor(x0_pred.shape, generator=generator, device=x0_pred.device, dtype=x0_pred.dtype) + prev_sample = (1 - sigma_next) * x0_pred + sigma_next * noise + + # upon completion increase step index by one + self._step_index += 1 + # Cast sample back to model compatible dtype + prev_sample = prev_sample.to(model_output.dtype) + + if not return_dict: + return (prev_sample,) + + return FlowMatchLCMSchedulerOutput(prev_sample=prev_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def _time_shift_exponential(self, mu, sigma, t): + return math.exp(mu) / (math.exp(mu) + (1 / t - 1) ** sigma) + + def _time_shift_linear(self, mu, sigma, t): + return mu / (mu + (1 / t - 1) ** sigma) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_heun_discrete.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_heun_discrete.py new file mode 100644 index 0000000000000000000000000000000000000000..930b0344646d8a983114233cd9d8282c2583caa7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_heun_discrete.py @@ -0,0 +1,704 @@ +# Copyright 2025 Katherine Crowson, The HuggingFace Team and hlky. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, is_scipy_available +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +if is_scipy_available(): + import scipy.stats + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->HeunDiscrete +class HeunDiscreteSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class HeunDiscreteScheduler(SchedulerMixin, ConfigMixin): + """ + Scheduler with Heun steps for discrete beta schedules. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear` or `scaled_linear`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample for numerical stability. + clip_sample_range (`float`, defaults to 1.0): + The maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 2 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.00085, # sensible defaults + beta_end: float = 0.012, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + prediction_type: str = "epsilon", + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + clip_sample: Optional[bool] = False, + clip_sample_range: float = 1.0, + timestep_spacing: str = "linspace", + steps_offset: int = 0, + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps, alpha_transform_type="cosine") + elif beta_schedule == "exp": + self.betas = betas_for_alpha_bar(num_train_timesteps, alpha_transform_type="exp") + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # set all values + self.set_timesteps(num_train_timesteps, None, num_train_timesteps) + self.use_karras_sigmas = use_karras_sigmas + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + @property + def init_noise_sigma(self): + # standard deviation of the initial noise distribution + if self.config.timestep_spacing in ["linspace", "trailing"]: + return self.sigmas.max() + + return (self.sigmas.max() ** 2 + 1) ** 0.5 + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input( + self, + sample: torch.Tensor, + timestep: Union[float, torch.Tensor], + ) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sample = sample / ((sigma**2 + 1) ** 0.5) + return sample + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + num_train_timesteps: Optional[int] = None, + timesteps: Optional[List[int]] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + num_train_timesteps (`int`, *optional*): + The number of diffusion steps used when training the model. If `None`, the default + `num_train_timesteps` attribute is used. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary spacing between timesteps. If `None`, timesteps will be + generated based on the `timestep_spacing` attribute. If `timesteps` is passed, `num_inference_steps` + must be `None`, and `timestep_spacing` attribute will be ignored. + """ + if num_inference_steps is None and timesteps is None: + raise ValueError("Must pass exactly one of `num_inference_steps` or `custom_timesteps`.") + if num_inference_steps is not None and timesteps is not None: + raise ValueError("Can only pass one of `num_inference_steps` or `custom_timesteps`.") + if timesteps is not None and self.config.use_karras_sigmas: + raise ValueError("Cannot use `timesteps` with `config.use_karras_sigmas = True`") + if timesteps is not None and self.config.use_exponential_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_exponential_sigmas = True`.") + if timesteps is not None and self.config.use_beta_sigmas: + raise ValueError("Cannot set `timesteps` with `config.use_beta_sigmas = True`.") + + num_inference_steps = num_inference_steps or len(timesteps) + self.num_inference_steps = num_inference_steps + num_train_timesteps = num_train_timesteps or self.config.num_train_timesteps + + if timesteps is not None: + timesteps = np.array(timesteps, dtype=np.float32) + else: + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = np.linspace(0, num_train_timesteps - 1, num_inference_steps, dtype=np.float32)[::-1].copy() + elif self.config.timestep_spacing == "leading": + step_ratio = num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.float32) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(num_train_timesteps, 0, -step_ratio)).round().copy().astype(np.float32) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=self.num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + + sigmas = np.concatenate([sigmas, [0.0]]).astype(np.float32) + sigmas = torch.from_numpy(sigmas).to(device=device) + self.sigmas = torch.cat([sigmas[:1], sigmas[1:-1].repeat_interleave(2), sigmas[-1:]]) + + timesteps = torch.from_numpy(timesteps) + timesteps = torch.cat([timesteps[:1], timesteps[1:].repeat_interleave(2)]) + + self.timesteps = timesteps.to(device=device, dtype=torch.float32) + + # empty dt and derivative + self.prev_derivative = None + self.dt = None + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + @property + def state_in_first_order(self): + return self.dt is None + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: Union[torch.Tensor, np.ndarray], + timestep: Union[float, torch.Tensor], + sample: Union[torch.Tensor, np.ndarray], + return_dict: bool = True, + ) -> Union[HeunDiscreteSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_heun_discrete.HeunDiscreteSchedulerOutput`] or + tuple. + + Returns: + [`~schedulers.scheduling_heun_discrete.HeunDiscreteSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_heun_discrete.HeunDiscreteSchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor. + """ + if self.step_index is None: + self._init_step_index(timestep) + + if self.state_in_first_order: + sigma = self.sigmas[self.step_index] + sigma_next = self.sigmas[self.step_index + 1] + else: + # 2nd order / Heun's method + sigma = self.sigmas[self.step_index - 1] + sigma_next = self.sigmas[self.step_index] + + # currently only gamma=0 is supported. This usually works best anyways. + # We can support gamma in the future but then need to scale the timestep before + # passing it to the model which requires a change in API + gamma = 0 + sigma_hat = sigma * (gamma + 1) # Note: sigma_hat == sigma for now + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if self.config.prediction_type == "epsilon": + sigma_input = sigma_hat if self.state_in_first_order else sigma_next + pred_original_sample = sample - sigma_input * model_output + elif self.config.prediction_type == "v_prediction": + sigma_input = sigma_hat if self.state_in_first_order else sigma_next + pred_original_sample = model_output * (-sigma_input / (sigma_input**2 + 1) ** 0.5) + ( + sample / (sigma_input**2 + 1) + ) + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + if self.config.clip_sample: + pred_original_sample = pred_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + if self.state_in_first_order: + # 2. Convert to an ODE derivative for 1st order + derivative = (sample - pred_original_sample) / sigma_hat + # 3. delta timestep + dt = sigma_next - sigma_hat + + # store for 2nd order step + self.prev_derivative = derivative + self.dt = dt + self.sample = sample + else: + # 2. 2nd order / Heun's method + derivative = (sample - pred_original_sample) / sigma_next + derivative = (self.prev_derivative + derivative) / 2 + + # 3. take prev timestep & sample + dt = self.dt + sample = self.sample + + # free dt and derivative + # Note, this puts the scheduler in "first order mode" + self.prev_derivative = None + self.dt = None + self.sample = None + + prev_sample = sample + derivative * dt + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return HeunDiscreteSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ipndm.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ipndm.py new file mode 100644 index 0000000000000000000000000000000000000000..da188fe8297ca621adcfab8b0c89a803406e80d5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_ipndm.py @@ -0,0 +1,247 @@ +# Copyright 2025 Zhejiang University Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from typing import List, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils import SchedulerMixin, SchedulerOutput + + +class IPNDMScheduler(SchedulerMixin, ConfigMixin): + """ + A fourth-order Improved Pseudo Linear Multistep scheduler. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + """ + + order = 1 + + @register_to_config + def __init__( + self, num_train_timesteps: int = 1000, trained_betas: Optional[Union[np.ndarray, List[float]]] = None + ): + # set `betas`, `alphas`, `timesteps` + self.set_timesteps(num_train_timesteps) + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # For now we only support F-PNDM, i.e. the runge-kutta method + # For more information on the algorithm please take a look at the paper: https://huggingface.co/papers/2202.09778 + # mainly at formula (9), (12), (13) and the Algorithm 2. + self.pndm_order = 4 + + # running values + self.ets = [] + self._step_index = None + self._begin_index = None + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.num_inference_steps = num_inference_steps + steps = torch.linspace(1, 0, num_inference_steps + 1)[:-1] + steps = torch.cat([steps, torch.tensor([0.0])]) + + if self.config.trained_betas is not None: + self.betas = torch.tensor(self.config.trained_betas, dtype=torch.float32) + else: + self.betas = torch.sin(steps * math.pi / 2) ** 2 + + self.alphas = (1.0 - self.betas**2) ** 0.5 + + timesteps = (torch.atan2(self.betas, self.alphas) / math.pi * 2)[:-1] + self.timesteps = timesteps.to(device) + + self.ets = [] + self._step_index = None + self._begin_index = None + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[int, torch.Tensor], + sample: torch.Tensor, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the linear multistep method. It performs one forward pass multiple times to approximate the solution. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or tuple. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + if self.step_index is None: + self._init_step_index(timestep) + + timestep_index = self.step_index + prev_timestep_index = self.step_index + 1 + + ets = sample * self.betas[timestep_index] + model_output * self.alphas[timestep_index] + self.ets.append(ets) + + if len(self.ets) == 1: + ets = self.ets[-1] + elif len(self.ets) == 2: + ets = (3 * self.ets[-1] - self.ets[-2]) / 2 + elif len(self.ets) == 3: + ets = (23 * self.ets[-1] - 16 * self.ets[-2] + 5 * self.ets[-3]) / 12 + else: + ets = (1 / 24) * (55 * self.ets[-1] - 59 * self.ets[-2] + 37 * self.ets[-3] - 9 * self.ets[-4]) + + prev_sample = self._get_prev_sample(sample, timestep_index, prev_timestep_index, ets) + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def scale_model_input(self, sample: torch.Tensor, *args, **kwargs) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def _get_prev_sample(self, sample, timestep_index, prev_timestep_index, ets): + alpha = self.alphas[timestep_index] + sigma = self.betas[timestep_index] + + next_alpha = self.alphas[prev_timestep_index] + next_sigma = self.betas[prev_timestep_index] + + pred = (sample - sigma * ets) / max(alpha, 1e-8) + prev_sample = next_alpha * pred + ets * next_sigma + + return prev_sample + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_k_dpm_2_ancestral_discrete.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_k_dpm_2_ancestral_discrete.py new file mode 100644 index 0000000000000000000000000000000000000000..595b93c39d4c63b0f1507ac7f1a3658007102482 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_k_dpm_2_ancestral_discrete.py @@ -0,0 +1,711 @@ +# Copyright 2025 Katherine Crowson, The HuggingFace Team and hlky. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, is_scipy_available +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +if is_scipy_available(): + import scipy.stats + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->KDPM2AncestralDiscrete +class KDPM2AncestralDiscreteSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class KDPM2AncestralDiscreteScheduler(SchedulerMixin, ConfigMixin): + """ + KDPM2DiscreteScheduler with ancestral sampling is inspired by the DPMSolver2 and Algorithm 2 from the [Elucidating + the Design Space of Diffusion-Based Generative Models](https://huggingface.co/papers/2206.00364) paper. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.00085): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.012): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear` or `scaled_linear`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 2 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.00085, # sensible defaults + beta_end: float = 0.012, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + prediction_type: str = "epsilon", + timestep_spacing: str = "linspace", + steps_offset: int = 0, + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # set all values + self.set_timesteps(num_train_timesteps, None, num_train_timesteps) + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def init_noise_sigma(self): + # standard deviation of the initial noise distribution + if self.config.timestep_spacing in ["linspace", "trailing"]: + return self.sigmas.max() + + return (self.sigmas.max() ** 2 + 1) ** 0.5 + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input( + self, + sample: torch.Tensor, + timestep: Union[float, torch.Tensor], + ) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + if self.step_index is None: + self._init_step_index(timestep) + + if self.state_in_first_order: + sigma = self.sigmas[self.step_index] + else: + sigma = self.sigmas_interpol[self.step_index - 1] + + sample = sample / ((sigma**2 + 1) ** 0.5) + return sample + + def set_timesteps( + self, + num_inference_steps: int, + device: Union[str, torch.device] = None, + num_train_timesteps: Optional[int] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.num_inference_steps = num_inference_steps + + num_train_timesteps = num_train_timesteps or self.config.num_train_timesteps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = np.linspace(0, num_train_timesteps - 1, num_inference_steps, dtype=np.float32)[::-1].copy() + elif self.config.timestep_spacing == "leading": + step_ratio = num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.float32) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(num_train_timesteps, 0, -step_ratio)).round().copy().astype(np.float32) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]).round() + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + + self.log_sigmas = torch.from_numpy(log_sigmas).to(device) + sigmas = np.concatenate([sigmas, [0.0]]).astype(np.float32) + sigmas = torch.from_numpy(sigmas).to(device=device) + + # compute up and down sigmas + sigmas_next = sigmas.roll(-1) + sigmas_next[-1] = 0.0 + sigmas_up = (sigmas_next**2 * (sigmas**2 - sigmas_next**2) / sigmas**2) ** 0.5 + sigmas_down = (sigmas_next**2 - sigmas_up**2) ** 0.5 + sigmas_down[-1] = 0.0 + + # compute interpolated sigmas + sigmas_interpol = sigmas.log().lerp(sigmas_down.log(), 0.5).exp() + sigmas_interpol[-2:] = 0.0 + + # set sigmas + self.sigmas = torch.cat([sigmas[:1], sigmas[1:].repeat_interleave(2), sigmas[-1:]]) + self.sigmas_interpol = torch.cat( + [sigmas_interpol[:1], sigmas_interpol[1:].repeat_interleave(2), sigmas_interpol[-1:]] + ) + self.sigmas_up = torch.cat([sigmas_up[:1], sigmas_up[1:].repeat_interleave(2), sigmas_up[-1:]]) + self.sigmas_down = torch.cat([sigmas_down[:1], sigmas_down[1:].repeat_interleave(2), sigmas_down[-1:]]) + + if str(device).startswith("mps"): + timesteps = torch.from_numpy(timesteps).to(device, dtype=torch.float32) + else: + timesteps = torch.from_numpy(timesteps).to(device) + + sigmas_interpol = sigmas_interpol.cpu() + log_sigmas = self.log_sigmas.cpu() + timesteps_interpol = np.array( + [self._sigma_to_t(sigma_interpol, log_sigmas) for sigma_interpol in sigmas_interpol] + ) + + timesteps_interpol = torch.from_numpy(timesteps_interpol).to(device, dtype=timesteps.dtype) + interleaved_timesteps = torch.stack((timesteps_interpol[:-2, None], timesteps[1:, None]), dim=-1).flatten() + + self.timesteps = torch.cat([timesteps[:1], interleaved_timesteps]) + + self.sample = None + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + @property + def state_in_first_order(self): + return self.sample is None + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: Union[torch.Tensor, np.ndarray], + timestep: Union[float, torch.Tensor], + sample: Union[torch.Tensor, np.ndarray], + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[KDPM2AncestralDiscreteSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`): + Whether or not to return a + [`~schedulers.scheduling_k_dpm_2_ancestral_discrete.KDPM2AncestralDiscreteSchedulerOutput`] or tuple. + + Returns: + [`~schedulers.scheduling_k_dpm_2_ancestral_discrete.KDPM2AncestralDiscreteSchedulerOutput`] or `tuple`: + If return_dict is `True`, + [`~schedulers.scheduling_k_dpm_2_ancestral_discrete.KDPM2AncestralDiscreteSchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor. + """ + if self.step_index is None: + self._init_step_index(timestep) + + if self.state_in_first_order: + sigma = self.sigmas[self.step_index] + sigma_interpol = self.sigmas_interpol[self.step_index] + sigma_up = self.sigmas_up[self.step_index] + sigma_down = self.sigmas_down[self.step_index - 1] + else: + # 2nd order / KPDM2's method + sigma = self.sigmas[self.step_index - 1] + sigma_interpol = self.sigmas_interpol[self.step_index - 1] + sigma_up = self.sigmas_up[self.step_index - 1] + sigma_down = self.sigmas_down[self.step_index - 1] + + # currently only gamma=0 is supported. This usually works best anyways. + # We can support gamma in the future but then need to scale the timestep before + # passing it to the model which requires a change in API + gamma = 0 + sigma_hat = sigma * (gamma + 1) # Note: sigma_hat == sigma for now + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if self.config.prediction_type == "epsilon": + sigma_input = sigma_hat if self.state_in_first_order else sigma_interpol + pred_original_sample = sample - sigma_input * model_output + elif self.config.prediction_type == "v_prediction": + sigma_input = sigma_hat if self.state_in_first_order else sigma_interpol + pred_original_sample = model_output * (-sigma_input / (sigma_input**2 + 1) ** 0.5) + ( + sample / (sigma_input**2 + 1) + ) + elif self.config.prediction_type == "sample": + raise NotImplementedError("prediction_type not implemented yet: sample") + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + if self.state_in_first_order: + # 2. Convert to an ODE derivative for 1st order + derivative = (sample - pred_original_sample) / sigma_hat + # 3. delta timestep + dt = sigma_interpol - sigma_hat + + # store for 2nd order step + self.sample = sample + self.dt = dt + prev_sample = sample + derivative * dt + else: + # DPM-Solver-2 + # 2. Convert to an ODE derivative for 2nd order + derivative = (sample - pred_original_sample) / sigma_interpol + # 3. delta timestep + dt = sigma_down - sigma_hat + + sample = self.sample + self.sample = None + + prev_sample = sample + derivative * dt + noise = randn_tensor( + model_output.shape, dtype=model_output.dtype, device=model_output.device, generator=generator + ) + prev_sample = prev_sample + noise * sigma_up + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return KDPM2AncestralDiscreteSchedulerOutput( + prev_sample=prev_sample, pred_original_sample=pred_original_sample + ) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_k_dpm_2_discrete.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_k_dpm_2_discrete.py new file mode 100644 index 0000000000000000000000000000000000000000..7db12227229ec55ecaf5ce1d77dc653bab7a5190 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_k_dpm_2_discrete.py @@ -0,0 +1,683 @@ +# Copyright 2025 Katherine Crowson, The HuggingFace Team and hlky. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, is_scipy_available +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +if is_scipy_available(): + import scipy.stats + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->KDPM2Discrete +class KDPM2DiscreteSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class KDPM2DiscreteScheduler(SchedulerMixin, ConfigMixin): + """ + KDPM2DiscreteScheduler is inspired by the DPMSolver2 and Algorithm 2 from the [Elucidating the Design Space of + Diffusion-Based Generative Models](https://huggingface.co/papers/2206.00364) paper. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.00085): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.012): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear` or `scaled_linear`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 2 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.00085, # sensible defaults + beta_end: float = 0.012, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + prediction_type: str = "epsilon", + timestep_spacing: str = "linspace", + steps_offset: int = 0, + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # set all values + self.set_timesteps(num_train_timesteps, None, num_train_timesteps) + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def init_noise_sigma(self): + # standard deviation of the initial noise distribution + if self.config.timestep_spacing in ["linspace", "trailing"]: + return self.sigmas.max() + + return (self.sigmas.max() ** 2 + 1) ** 0.5 + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input( + self, + sample: torch.Tensor, + timestep: Union[float, torch.Tensor], + ) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + if self.step_index is None: + self._init_step_index(timestep) + + if self.state_in_first_order: + sigma = self.sigmas[self.step_index] + else: + sigma = self.sigmas_interpol[self.step_index] + + sample = sample / ((sigma**2 + 1) ** 0.5) + return sample + + def set_timesteps( + self, + num_inference_steps: int, + device: Union[str, torch.device] = None, + num_train_timesteps: Optional[int] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.num_inference_steps = num_inference_steps + + num_train_timesteps = num_train_timesteps or self.config.num_train_timesteps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = np.linspace(0, num_train_timesteps - 1, num_inference_steps, dtype=np.float32)[::-1].copy() + elif self.config.timestep_spacing == "leading": + step_ratio = num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.float32) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(num_train_timesteps, 0, -step_ratio)).round().copy().astype(np.float32) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]).round() + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + + self.log_sigmas = torch.from_numpy(log_sigmas).to(device=device) + sigmas = np.concatenate([sigmas, [0.0]]).astype(np.float32) + sigmas = torch.from_numpy(sigmas).to(device=device) + + # interpolate sigmas + sigmas_interpol = sigmas.log().lerp(sigmas.roll(1).log(), 0.5).exp() + + self.sigmas = torch.cat([sigmas[:1], sigmas[1:].repeat_interleave(2), sigmas[-1:]]) + self.sigmas_interpol = torch.cat( + [sigmas_interpol[:1], sigmas_interpol[1:].repeat_interleave(2), sigmas_interpol[-1:]] + ) + + timesteps = torch.from_numpy(timesteps).to(device) + + # interpolate timesteps + sigmas_interpol = sigmas_interpol.cpu() + log_sigmas = self.log_sigmas.cpu() + timesteps_interpol = np.array( + [self._sigma_to_t(sigma_interpol, log_sigmas) for sigma_interpol in sigmas_interpol] + ) + timesteps_interpol = torch.from_numpy(timesteps_interpol).to(device, dtype=timesteps.dtype) + interleaved_timesteps = torch.stack((timesteps_interpol[1:-1, None], timesteps[1:, None]), dim=-1).flatten() + + self.timesteps = torch.cat([timesteps[:1], interleaved_timesteps]) + + self.sample = None + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def state_in_first_order(self): + return self.sample is None + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def step( + self, + model_output: Union[torch.Tensor, np.ndarray], + timestep: Union[float, torch.Tensor], + sample: Union[torch.Tensor, np.ndarray], + return_dict: bool = True, + ) -> Union[KDPM2DiscreteSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_k_dpm_2_discrete.KDPM2DiscreteSchedulerOutput`] or + tuple. + + Returns: + [`~schedulers.scheduling_k_dpm_2_discrete.KDPM2DiscreteSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_k_dpm_2_discrete.KDPM2DiscreteSchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor. + """ + if self.step_index is None: + self._init_step_index(timestep) + + if self.state_in_first_order: + sigma = self.sigmas[self.step_index] + sigma_interpol = self.sigmas_interpol[self.step_index + 1] + sigma_next = self.sigmas[self.step_index + 1] + else: + # 2nd order / KDPM2's method + sigma = self.sigmas[self.step_index - 1] + sigma_interpol = self.sigmas_interpol[self.step_index] + sigma_next = self.sigmas[self.step_index] + + # currently only gamma=0 is supported. This usually works best anyways. + # We can support gamma in the future but then need to scale the timestep before + # passing it to the model which requires a change in API + gamma = 0 + sigma_hat = sigma * (gamma + 1) # Note: sigma_hat == sigma for now + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if self.config.prediction_type == "epsilon": + sigma_input = sigma_hat if self.state_in_first_order else sigma_interpol + pred_original_sample = sample - sigma_input * model_output + elif self.config.prediction_type == "v_prediction": + sigma_input = sigma_hat if self.state_in_first_order else sigma_interpol + pred_original_sample = model_output * (-sigma_input / (sigma_input**2 + 1) ** 0.5) + ( + sample / (sigma_input**2 + 1) + ) + elif self.config.prediction_type == "sample": + raise NotImplementedError("prediction_type not implemented yet: sample") + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + if self.state_in_first_order: + # 2. Convert to an ODE derivative for 1st order + derivative = (sample - pred_original_sample) / sigma_hat + # 3. delta timestep + dt = sigma_interpol - sigma_hat + + # store for 2nd order step + self.sample = sample + else: + # DPM-Solver-2 + # 2. Convert to an ODE derivative for 2nd order + derivative = (sample - pred_original_sample) / sigma_interpol + + # 3. delta timestep + dt = sigma_next - sigma_hat + + sample = self.sample + self.sample = None + + # upon completion increase step index by one + self._step_index += 1 + + prev_sample = sample + derivative * dt + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return KDPM2DiscreteSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_karras_ve_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_karras_ve_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..bacfbd61006d68bb39ce781103cd382ace6d772a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_karras_ve_flax.py @@ -0,0 +1,238 @@ +# Copyright 2025 NVIDIA and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import flax +import jax +import jax.numpy as jnp +from jax import random + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from .scheduling_utils_flax import FlaxSchedulerMixin + + +@flax.struct.dataclass +class KarrasVeSchedulerState: + # setable values + num_inference_steps: Optional[int] = None + timesteps: Optional[jnp.ndarray] = None + schedule: Optional[jnp.ndarray] = None # sigma(t_i) + + @classmethod + def create(cls): + return cls() + + +@dataclass +class FlaxKarrasVeOutput(BaseOutput): + """ + Output class for the scheduler's step function output. + + Args: + prev_sample (`jnp.ndarray` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample (x_{t-1}) of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + derivative (`jnp.ndarray` of shape `(batch_size, num_channels, height, width)` for images): + Derivative of predicted original image sample (x_0). + state (`KarrasVeSchedulerState`): the `FlaxKarrasVeScheduler` state data class. + """ + + prev_sample: jnp.ndarray + derivative: jnp.ndarray + state: KarrasVeSchedulerState + + +class FlaxKarrasVeScheduler(FlaxSchedulerMixin, ConfigMixin): + """ + Stochastic sampling from Karras et al. [1] tailored to the Variance-Expanding (VE) models [2]. Use Algorithm 2 and + the VE column of Table 1 from [1] for reference. + + [1] Karras, Tero, et al. "Elucidating the Design Space of Diffusion-Based Generative Models." + https://huggingface.co/papers/2206.00364 [2] Song, Yang, et al. "Score-based generative modeling through stochastic + differential equations." https://huggingface.co/papers/2011.13456 + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + For more details on the parameters, see the original paper's Appendix E.: "Elucidating the Design Space of + Diffusion-Based Generative Models." https://huggingface.co/papers/2206.00364. The grid search values used to find + the optimal {s_noise, s_churn, s_min, s_max} for a specific model are described in Table 5 of the paper. + + Args: + sigma_min (`float`): minimum noise magnitude + sigma_max (`float`): maximum noise magnitude + s_noise (`float`): the amount of additional noise to counteract loss of detail during sampling. + A reasonable range is [1.000, 1.011]. + s_churn (`float`): the parameter controlling the overall amount of stochasticity. + A reasonable range is [0, 100]. + s_min (`float`): the start value of the sigma range where we add noise (enable stochasticity). + A reasonable range is [0, 10]. + s_max (`float`): the end value of the sigma range where we add noise. + A reasonable range is [0.2, 80]. + """ + + @property + def has_state(self): + return True + + @register_to_config + def __init__( + self, + sigma_min: float = 0.02, + sigma_max: float = 100, + s_noise: float = 1.007, + s_churn: float = 80, + s_min: float = 0.05, + s_max: float = 50, + ): + pass + + def create_state(self): + return KarrasVeSchedulerState.create() + + def set_timesteps( + self, state: KarrasVeSchedulerState, num_inference_steps: int, shape: Tuple = () + ) -> KarrasVeSchedulerState: + """ + Sets the continuous timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + state (`KarrasVeSchedulerState`): + the `FlaxKarrasVeScheduler` state data class. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + + """ + timesteps = jnp.arange(0, num_inference_steps)[::-1].copy() + schedule = [ + ( + self.config.sigma_max**2 + * (self.config.sigma_min**2 / self.config.sigma_max**2) ** (i / (num_inference_steps - 1)) + ) + for i in timesteps + ] + + return state.replace( + num_inference_steps=num_inference_steps, + schedule=jnp.array(schedule, dtype=jnp.float32), + timesteps=timesteps, + ) + + def add_noise_to_input( + self, + state: KarrasVeSchedulerState, + sample: jnp.ndarray, + sigma: float, + key: jax.Array, + ) -> Tuple[jnp.ndarray, float]: + """ + Explicit Langevin-like "churn" step of adding noise to the sample according to a factor gamma_i ≥ 0 to reach a + higher noise level sigma_hat = sigma_i + gamma_i*sigma_i. + + TODO Args: + """ + if self.config.s_min <= sigma <= self.config.s_max: + gamma = min(self.config.s_churn / state.num_inference_steps, 2**0.5 - 1) + else: + gamma = 0 + + # sample eps ~ N(0, S_noise^2 * I) + key = random.split(key, num=1) + eps = self.config.s_noise * random.normal(key=key, shape=sample.shape) + sigma_hat = sigma + gamma * sigma + sample_hat = sample + ((sigma_hat**2 - sigma**2) ** 0.5 * eps) + + return sample_hat, sigma_hat + + def step( + self, + state: KarrasVeSchedulerState, + model_output: jnp.ndarray, + sigma_hat: float, + sigma_prev: float, + sample_hat: jnp.ndarray, + return_dict: bool = True, + ) -> Union[FlaxKarrasVeOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + state (`KarrasVeSchedulerState`): the `FlaxKarrasVeScheduler` state data class. + model_output (`torch.Tensor` or `np.ndarray`): direct output from learned diffusion model. + sigma_hat (`float`): TODO + sigma_prev (`float`): TODO + sample_hat (`torch.Tensor` or `np.ndarray`): TODO + return_dict (`bool`): option for returning tuple rather than FlaxKarrasVeOutput class + + Returns: + [`~schedulers.scheduling_karras_ve_flax.FlaxKarrasVeOutput`] or `tuple`: Updated sample in the diffusion + chain and derivative. [`~schedulers.scheduling_karras_ve_flax.FlaxKarrasVeOutput`] if `return_dict` is + True, otherwise a `tuple`. When returning a tuple, the first element is the sample tensor. + """ + + pred_original_sample = sample_hat + sigma_hat * model_output + derivative = (sample_hat - pred_original_sample) / sigma_hat + sample_prev = sample_hat + (sigma_prev - sigma_hat) * derivative + + if not return_dict: + return (sample_prev, derivative, state) + + return FlaxKarrasVeOutput(prev_sample=sample_prev, derivative=derivative, state=state) + + def step_correct( + self, + state: KarrasVeSchedulerState, + model_output: jnp.ndarray, + sigma_hat: float, + sigma_prev: float, + sample_hat: jnp.ndarray, + sample_prev: jnp.ndarray, + derivative: jnp.ndarray, + return_dict: bool = True, + ) -> Union[FlaxKarrasVeOutput, Tuple]: + """ + Correct the predicted sample based on the output model_output of the network. TODO complete description + + Args: + state (`KarrasVeSchedulerState`): the `FlaxKarrasVeScheduler` state data class. + model_output (`torch.Tensor` or `np.ndarray`): direct output from learned diffusion model. + sigma_hat (`float`): TODO + sigma_prev (`float`): TODO + sample_hat (`torch.Tensor` or `np.ndarray`): TODO + sample_prev (`torch.Tensor` or `np.ndarray`): TODO + derivative (`torch.Tensor` or `np.ndarray`): TODO + return_dict (`bool`): option for returning tuple rather than FlaxKarrasVeOutput class + + Returns: + prev_sample (TODO): updated sample in the diffusion chain. derivative (TODO): TODO + + """ + pred_original_sample = sample_prev + sigma_prev * model_output + derivative_corr = (sample_prev - pred_original_sample) / sigma_prev + sample_prev = sample_hat + (sigma_prev - sigma_hat) * (0.5 * derivative + 0.5 * derivative_corr) + + if not return_dict: + return (sample_prev, derivative, state) + + return FlaxKarrasVeOutput(prev_sample=sample_prev, derivative=derivative, state=state) + + def add_noise(self, state: KarrasVeSchedulerState, original_samples, noise, timesteps): + raise NotImplementedError() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lcm.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lcm.py new file mode 100644 index 0000000000000000000000000000000000000000..a7b0644de4f5332dbedfbdacfed1419ceabe468c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lcm.py @@ -0,0 +1,729 @@ +# Copyright 2025 Stanford University Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput, logging +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +class LCMSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + denoised: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas: torch.Tensor) -> torch.Tensor: + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class LCMScheduler(SchedulerMixin, ConfigMixin): + """ + `LCMScheduler` extends the denoising procedure introduced in denoising diffusion probabilistic models (DDPMs) with + non-Markovian guidance. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. [`~ConfigMixin`] takes care of storing all config + attributes that are passed in the scheduler's `__init__` function, such as `num_train_timesteps`. They can be + accessed via `scheduler.config.num_train_timesteps`. [`SchedulerMixin`] provides general loading and saving + functionality via the [`SchedulerMixin.save_pretrained`] and [`~SchedulerMixin.from_pretrained`] functions. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + original_inference_steps (`int`, *optional*, defaults to 50): + The default number of inference steps used to generate a linearly-spaced timestep schedule, from which we + will ultimately take `num_inference_steps` evenly spaced timesteps to form the final timestep schedule. + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample for numerical stability. + clip_sample_range (`float`, defaults to 1.0): + The maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + set_alpha_to_one (`bool`, defaults to `True`): + Each diffusion step uses the alphas product value at that step and at the previous one. For the final step + there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the alpha value at step 0. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True`. + timestep_spacing (`str`, defaults to `"leading"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + timestep_scaling (`float`, defaults to 10.0): + The factor the timesteps will be multiplied by when calculating the consistency model boundary conditions + `c_skip` and `c_out`. Increasing this will decrease the approximation error (although the approximation + error at the default of `10.0` is already pretty small). + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.00085, + beta_end: float = 0.012, + beta_schedule: str = "scaled_linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + original_inference_steps: int = 50, + clip_sample: bool = False, + clip_sample_range: float = 1.0, + set_alpha_to_one: bool = True, + steps_offset: int = 0, + prediction_type: str = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + timestep_spacing: str = "leading", + timestep_scaling: float = 10.0, + rescale_betas_zero_snr: bool = False, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # At every step in ddim, we are looking into the previous alphas_cumprod + # For the final step, there is no previous alphas_cumprod because we are already at 0 + # `set_alpha_to_one` decides whether we set this parameter simply to one or + # whether we use the final alpha of the "non-previous" one. + self.final_alpha_cumprod = torch.tensor(1.0) if set_alpha_to_one else self.alphas_cumprod[0] + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy().astype(np.int64)) + self.custom_timesteps = False + + self._step_index = None + self._begin_index = None + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + @property + def step_index(self): + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + original_inference_steps: Optional[int] = None, + timesteps: Optional[List[int]] = None, + strength: int = 1.0, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`, *optional*): + The number of diffusion steps used when generating samples with a pre-trained model. If used, + `timesteps` must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + original_inference_steps (`int`, *optional*): + The original number of inference steps, which will be used to generate a linearly-spaced timestep + schedule (which is different from the standard `diffusers` implementation). We will then take + `num_inference_steps` timesteps from this schedule, evenly spaced in terms of indices, and use that as + our final timestep schedule. If not set, this will default to the `original_inference_steps` attribute. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary spacing between timesteps. If `None`, then the default + timestep spacing strategy of equal spacing between timesteps on the training/distillation timestep + schedule is used. If `timesteps` is passed, `num_inference_steps` must be `None`. + """ + # 0. Check inputs + if num_inference_steps is None and timesteps is None: + raise ValueError("Must pass exactly one of `num_inference_steps` or `custom_timesteps`.") + + if num_inference_steps is not None and timesteps is not None: + raise ValueError("Can only pass one of `num_inference_steps` or `custom_timesteps`.") + + # 1. Calculate the LCM original training/distillation timestep schedule. + original_steps = ( + original_inference_steps if original_inference_steps is not None else self.config.original_inference_steps + ) + + if original_steps > self.config.num_train_timesteps: + raise ValueError( + f"`original_steps`: {original_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + # LCM Timesteps Setting + # The skipping step parameter k from the paper. + k = self.config.num_train_timesteps // original_steps + # LCM Training/Distillation Steps Schedule + # Currently, only a linearly-spaced schedule is supported (same as in the LCM distillation scripts). + lcm_origin_timesteps = np.asarray(list(range(1, int(original_steps * strength) + 1))) * k - 1 + + # 2. Calculate the LCM inference timestep schedule. + if timesteps is not None: + # 2.1 Handle custom timestep schedules. + train_timesteps = set(lcm_origin_timesteps) + non_train_timesteps = [] + for i in range(1, len(timesteps)): + if timesteps[i] >= timesteps[i - 1]: + raise ValueError("`custom_timesteps` must be in descending order.") + + if timesteps[i] not in train_timesteps: + non_train_timesteps.append(timesteps[i]) + + if timesteps[0] >= self.config.num_train_timesteps: + raise ValueError( + f"`timesteps` must start before `self.config.train_timesteps`: {self.config.num_train_timesteps}." + ) + + # Raise warning if timestep schedule does not start with self.config.num_train_timesteps - 1 + if strength == 1.0 and timesteps[0] != self.config.num_train_timesteps - 1: + logger.warning( + f"The first timestep on the custom timestep schedule is {timesteps[0]}, not" + f" `self.config.num_train_timesteps - 1`: {self.config.num_train_timesteps - 1}. You may get" + f" unexpected results when using this timestep schedule." + ) + + # Raise warning if custom timestep schedule contains timesteps not on original timestep schedule + if non_train_timesteps: + logger.warning( + f"The custom timestep schedule contains the following timesteps which are not on the original" + f" training/distillation timestep schedule: {non_train_timesteps}. You may get unexpected results" + f" when using this timestep schedule." + ) + + # Raise warning if custom timestep schedule is longer than original_steps + if len(timesteps) > original_steps: + logger.warning( + f"The number of timesteps in the custom timestep schedule is {len(timesteps)}, which exceeds the" + f" the length of the timestep schedule used for training: {original_steps}. You may get some" + f" unexpected results when using this timestep schedule." + ) + + timesteps = np.array(timesteps, dtype=np.int64) + self.num_inference_steps = len(timesteps) + self.custom_timesteps = True + + # Apply strength (e.g. for img2img pipelines) (see StableDiffusionImg2ImgPipeline.get_timesteps) + init_timestep = min(int(self.num_inference_steps * strength), self.num_inference_steps) + t_start = max(self.num_inference_steps - init_timestep, 0) + timesteps = timesteps[t_start * self.order :] + # TODO: also reset self.num_inference_steps? + else: + # 2.2 Create the "standard" LCM inference timestep schedule. + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + skipping_step = len(lcm_origin_timesteps) // num_inference_steps + + if skipping_step < 1: + raise ValueError( + f"The combination of `original_steps x strength`: {original_steps} x {strength} is smaller than `num_inference_steps`: {num_inference_steps}. Make sure to either reduce `num_inference_steps` to a value smaller than {int(original_steps * strength)} or increase `strength` to a value higher than {float(num_inference_steps / original_steps)}." + ) + + self.num_inference_steps = num_inference_steps + + if num_inference_steps > original_steps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `original_inference_steps`:" + f" {original_steps} because the final timestep schedule will be a subset of the" + f" `original_inference_steps`-sized initial timestep schedule." + ) + + # LCM Inference Steps Schedule + lcm_origin_timesteps = lcm_origin_timesteps[::-1].copy() + # Select (approximately) evenly spaced indices from lcm_origin_timesteps. + inference_indices = np.linspace(0, len(lcm_origin_timesteps), num=num_inference_steps, endpoint=False) + inference_indices = np.floor(inference_indices).astype(np.int64) + timesteps = lcm_origin_timesteps[inference_indices] + + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.long) + + self._step_index = None + self._begin_index = None + + def get_scalings_for_boundary_condition_discrete(self, timestep): + self.sigma_data = 0.5 # Default: 0.5 + scaled_timestep = timestep * self.config.timestep_scaling + + c_skip = self.sigma_data**2 / (scaled_timestep**2 + self.sigma_data**2) + c_out = scaled_timestep / (scaled_timestep**2 + self.sigma_data**2) ** 0.5 + return c_skip, c_out + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[LCMSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_lcm.LCMSchedulerOutput`] or `tuple`. + Returns: + [`~schedulers.scheduling_utils.LCMSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_lcm.LCMSchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # 1. get previous step value + prev_step_index = self.step_index + 1 + if prev_step_index < len(self.timesteps): + prev_timestep = self.timesteps[prev_step_index] + else: + prev_timestep = timestep + + # 2. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + # 3. Get scalings for boundary conditions + c_skip, c_out = self.get_scalings_for_boundary_condition_discrete(timestep) + + # 4. Compute the predicted original sample x_0 based on the model parameterization + if self.config.prediction_type == "epsilon": # noise-prediction + predicted_original_sample = (sample - beta_prod_t.sqrt() * model_output) / alpha_prod_t.sqrt() + elif self.config.prediction_type == "sample": # x-prediction + predicted_original_sample = model_output + elif self.config.prediction_type == "v_prediction": # v-prediction + predicted_original_sample = alpha_prod_t.sqrt() * sample - beta_prod_t.sqrt() * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample` or" + " `v_prediction` for `LCMScheduler`." + ) + + # 5. Clip or threshold "predicted x_0" + if self.config.thresholding: + predicted_original_sample = self._threshold_sample(predicted_original_sample) + elif self.config.clip_sample: + predicted_original_sample = predicted_original_sample.clamp( + -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 6. Denoise model output using boundary conditions + denoised = c_out * predicted_original_sample + c_skip * sample + + # 7. Sample and inject noise z ~ N(0, I) for MultiStep Inference + # Noise is not used on the final timestep of the timestep schedule. + # This also means that noise is not used for one-step sampling. + if self.step_index != self.num_inference_steps - 1: + noise = randn_tensor( + model_output.shape, generator=generator, device=model_output.device, dtype=denoised.dtype + ) + prev_sample = alpha_prod_t_prev.sqrt() * denoised + beta_prod_t_prev.sqrt() * noise + else: + prev_sample = denoised + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample, denoised) + + return LCMSchedulerOutput(prev_sample=prev_sample, denoised=denoised) + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.get_velocity + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.IntTensor) -> torch.Tensor: + """ + Compute the velocity prediction from the sample and noise according to the velocity formula. + + Args: + sample (`torch.Tensor`): + The input sample. + noise (`torch.Tensor`): + The noise tensor. + timesteps (`torch.IntTensor`): + The timesteps for velocity computation. + + Returns: + `torch.Tensor`: + The computed velocity. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as sample + self.alphas_cumprod = self.alphas_cumprod.to(device=sample.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=sample.dtype) + timesteps = timesteps.to(sample.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self): + return self.config.num_train_timesteps + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.previous_timestep + def previous_timestep(self, timestep): + """ + Compute the previous timestep in the diffusion chain. + + Args: + timestep (`int`): + The current timestep. + + Returns: + `int`: + The previous timestep. + """ + if self.custom_timesteps or self.num_inference_steps: + index = (self.timesteps == timestep).nonzero(as_tuple=True)[0][0] + if index == self.timesteps.shape[0] - 1: + prev_t = torch.tensor(-1) + else: + prev_t = self.timesteps[index + 1] + else: + prev_t = timestep - 1 + return prev_t diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lms_discrete.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lms_discrete.py new file mode 100644 index 0000000000000000000000000000000000000000..d0766eed1b666f549695945a7fbd19f7cc0df5be --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lms_discrete.py @@ -0,0 +1,665 @@ +# Copyright 2025 Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +import math +import warnings +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import scipy.stats +import torch +from scipy import integrate + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->LMSDiscrete +class LMSDiscreteSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class LMSDiscreteScheduler(SchedulerMixin, ConfigMixin): + """ + A linear multistep scheduler for discrete beta schedules. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to `1000`): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to `0.0001`): + The starting `beta` value of inference. + beta_end (`float`, defaults to `0.02`): + The final `beta` value. + beta_schedule (`"linear"`, `"scaled_linear"`, or `"squaredcos_cap_v2"`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + prediction_type (`"epsilon"`, `"sample"`, or `"v_prediction"`, defaults to `"epsilon"`): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + timestep_spacing (`"linspace"`, `"leading"`, or `"trailing"`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to `0`): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: Literal["linear", "scaled_linear", "squaredcos_cap_v2"] = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + prediction_type: Literal["epsilon", "sample", "v_prediction"] = "epsilon", + timestep_spacing: Literal["linspace", "leading", "trailing"] = "linspace", + steps_offset: int = 0, + ): + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + sigmas = np.concatenate([sigmas[::-1], [0.0]]).astype(np.float32) + self.sigmas = torch.from_numpy(sigmas) + + # setable values + self.num_inference_steps = None + self.use_karras_sigmas = use_karras_sigmas + self.set_timesteps(num_train_timesteps, None) + self.derivatives = [] + self.is_scale_input_called = False + + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def init_noise_sigma(self) -> Union[float, torch.Tensor]: + """ + The standard deviation of the initial noise distribution. + + Returns: + `float` or `torch.Tensor`: + The standard deviation of the initial noise distribution, computed based on the maximum sigma value and + the timestep spacing configuration. + """ + # standard deviation of the initial noise distribution + if self.config.timestep_spacing in ["linspace", "trailing"]: + return self.sigmas.max() + + return (self.sigmas.max() ** 2 + 1) ** 0.5 + + @property + def step_index(self) -> Optional[int]: + """ + The index counter for current timestep. It will increase by 1 after each scheduler step. + + Returns: + `int` or `None`: + The current step index, or `None` if not initialized. + """ + return self._step_index + + @property + def begin_index(self) -> Optional[int]: + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + + Returns: + `int` or `None`: + The begin index for the scheduler, or `None` if not set. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0) -> None: + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input(self, sample: torch.Tensor, timestep: Union[float, torch.Tensor]) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`float` or `torch.Tensor`): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + sample = sample / ((sigma**2 + 1) ** 0.5) + self.is_scale_input_called = True + return sample + + def get_lms_coefficient(self, order: int, t: int, current_order: int) -> float: + """ + Compute the linear multistep coefficient. + + Args: + order (`int`): + The order of the linear multistep method. + t (`int`): + The current timestep index. + current_order (`int`): + The current order for which to compute the coefficient. + + Returns: + `float`: + The computed linear multistep coefficient. + """ + + def lms_derivative(tau): + prod = 1.0 + for k in range(order): + if current_order == k: + continue + prod *= (tau - self.sigmas[t - k]) / (self.sigmas[t - current_order] - self.sigmas[t - k]) + return prod + + integrated_coeff = integrate.quad(lms_derivative, self.sigmas[t], self.sigmas[t + 1], epsrel=1e-4)[0] + + return integrated_coeff + + def set_timesteps(self, num_inference_steps: int, device: Optional[Union[str, torch.device]] = None) -> None: + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + self.num_inference_steps = num_inference_steps + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps, dtype=np.float32)[ + ::-1 + ].copy() + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.float32) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(self.config.num_train_timesteps, 0, -step_ratio)).round().copy().astype(np.float32) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + + if self.config.use_karras_sigmas: + sigmas = self._convert_to_karras(in_sigmas=sigmas) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_exponential_sigmas: + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + elif self.config.use_beta_sigmas: + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + + sigmas = np.concatenate([sigmas, [0.0]]).astype(np.float32) + + self.sigmas = torch.from_numpy(sigmas).to(device=device) + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.float32) + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + self.derivatives = [] + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma: np.ndarray, log_sigmas: np.ndarray) -> np.ndarray: + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + def _convert_to_karras(self, in_sigmas: torch.Tensor) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + sigma_min: float = in_sigmas[-1].item() + sigma_max: float = in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, self.num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def step( + self, + model_output: torch.Tensor, + timestep: Union[float, torch.Tensor], + sample: torch.Tensor, + order: int = 4, + return_dict: bool = True, + ) -> Union[LMSDiscreteSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`float` or `torch.Tensor`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + order (`int`, defaults to 4): + The order of the linear multistep method. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or tuple. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if not self.is_scale_input_called: + warnings.warn( + "The `scale_model_input` function should be called before `step` to ensure correct denoising. " + "See `StableDiffusionPipeline` for a usage example." + ) + + if self.step_index is None: + self._init_step_index(timestep) + + sigma = self.sigmas[self.step_index] + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if self.config.prediction_type == "epsilon": + pred_original_sample = sample - sigma * model_output + elif self.config.prediction_type == "v_prediction": + # * c_out + input * c_skip + pred_original_sample = model_output * (-sigma / (sigma**2 + 1) ** 0.5) + (sample / (sigma**2 + 1)) + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + # 2. Convert to an ODE derivative + derivative = (sample - pred_original_sample) / sigma + self.derivatives.append(derivative) + if len(self.derivatives) > order: + self.derivatives.pop(0) + + # 3. Compute linear multistep coefficients + order = min(self.step_index + 1, order) + lms_coeffs = [self.get_lms_coefficient(order, self.step_index, curr_order) for curr_order in range(order)] + + # 4. Compute previous sample based on the derivatives path + prev_sample = sample + sum( + coeff * derivative for coeff, derivative in zip(lms_coeffs, reversed(self.derivatives)) + ) + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return ( + prev_sample, + pred_original_sample, + ) + + return LMSDiscreteSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise schedule at the specified timesteps. + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise tensor to add to the original samples. + timesteps (`torch.Tensor`): + The timesteps at which to add noise, determining the noise level from the schedule. + + Returns: + `torch.Tensor`: + The noisy samples with added noise scaled according to the timestep schedule. + """ + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # self.begin_index is None when scheduler is used for training, or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + noisy_samples = original_samples + noise * sigma + return noisy_samples + + def __len__(self) -> int: + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lms_discrete_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lms_discrete_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..b8e08ff9e134f8a77b428179057df589d736a187 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_lms_discrete_flax.py @@ -0,0 +1,283 @@ +# Copyright 2025 Katherine Crowson and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import flax +import jax.numpy as jnp +from scipy import integrate + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils_flax import ( + CommonSchedulerState, + FlaxKarrasDiffusionSchedulers, + FlaxSchedulerMixin, + FlaxSchedulerOutput, + broadcast_to_shape_from_left, +) + + +@flax.struct.dataclass +class LMSDiscreteSchedulerState: + common: CommonSchedulerState + + # setable values + init_noise_sigma: jnp.ndarray + timesteps: jnp.ndarray + sigmas: jnp.ndarray + num_inference_steps: Optional[int] = None + + # running values + derivatives: Optional[jnp.ndarray] = None + + @classmethod + def create( + cls, common: CommonSchedulerState, init_noise_sigma: jnp.ndarray, timesteps: jnp.ndarray, sigmas: jnp.ndarray + ): + return cls(common=common, init_noise_sigma=init_noise_sigma, timesteps=timesteps, sigmas=sigmas) + + +@dataclass +class FlaxLMSSchedulerOutput(FlaxSchedulerOutput): + state: LMSDiscreteSchedulerState + + +class FlaxLMSDiscreteScheduler(FlaxSchedulerMixin, ConfigMixin): + """ + Linear Multistep Scheduler for discrete beta schedules. Based on the original k-diffusion implementation by + Katherine Crowson: + https://github.com/crowsonkb/k-diffusion/blob/481677d114f6ea445aa009cf5bd7a9cdee909e47/k_diffusion/sampling.py#L181 + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + beta_start (`float`): the starting `beta` value of inference. + beta_end (`float`): the final `beta` value. + beta_schedule (`str`): + the beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear` or `scaled_linear`. + trained_betas (`jnp.ndarray`, optional): + option to pass an array of betas directly to the constructor to bypass `beta_start`, `beta_end` etc. + prediction_type (`str`, default `epsilon`, optional): + prediction type of the scheduler function, one of `epsilon` (predicting the noise of the diffusion + process), `sample` (directly predicting the noisy sample`) or `v_prediction` (see section 2.4 + https://imagen.research.google/video/paper.pdf) + dtype (`jnp.dtype`, *optional*, defaults to `jnp.float32`): + the `dtype` used for params and computation. + """ + + _compatibles = [e.name for e in FlaxKarrasDiffusionSchedulers] + + dtype: jnp.dtype + + @property + def has_state(self): + return True + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[jnp.ndarray] = None, + prediction_type: str = "epsilon", + dtype: jnp.dtype = jnp.float32, + ): + self.dtype = dtype + + def create_state(self, common: Optional[CommonSchedulerState] = None) -> LMSDiscreteSchedulerState: + if common is None: + common = CommonSchedulerState.create(self) + + timesteps = jnp.arange(0, self.config.num_train_timesteps).round()[::-1] + sigmas = ((1 - common.alphas_cumprod) / common.alphas_cumprod) ** 0.5 + + # standard deviation of the initial noise distribution + init_noise_sigma = sigmas.max() + + return LMSDiscreteSchedulerState.create( + common=common, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + sigmas=sigmas, + ) + + def scale_model_input(self, state: LMSDiscreteSchedulerState, sample: jnp.ndarray, timestep: int) -> jnp.ndarray: + """ + Scales the denoising model input by `(sigma**2 + 1) ** 0.5` to match the K-LMS algorithm. + + Args: + state (`LMSDiscreteSchedulerState`): + the `FlaxLMSDiscreteScheduler` state data class instance. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + timestep (`int`): + current discrete timestep in the diffusion chain. + + Returns: + `jnp.ndarray`: scaled input sample + """ + (step_index,) = jnp.where(state.timesteps == timestep, size=1) + step_index = step_index[0] + + sigma = state.sigmas[step_index] + sample = sample / ((sigma**2 + 1) ** 0.5) + return sample + + def get_lms_coefficient(self, state: LMSDiscreteSchedulerState, order, t, current_order): + """ + Compute a linear multistep coefficient. + + Args: + order (TODO): + t (TODO): + current_order (TODO): + """ + + def lms_derivative(tau): + prod = 1.0 + for k in range(order): + if current_order == k: + continue + prod *= (tau - state.sigmas[t - k]) / (state.sigmas[t - current_order] - state.sigmas[t - k]) + return prod + + integrated_coeff = integrate.quad(lms_derivative, state.sigmas[t], state.sigmas[t + 1], epsrel=1e-4)[0] + + return integrated_coeff + + def set_timesteps( + self, state: LMSDiscreteSchedulerState, num_inference_steps: int, shape: Tuple = () + ) -> LMSDiscreteSchedulerState: + """ + Sets the timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + state (`LMSDiscreteSchedulerState`): + the `FlaxLMSDiscreteScheduler` state data class instance. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + """ + + timesteps = jnp.linspace(self.config.num_train_timesteps - 1, 0, num_inference_steps, dtype=self.dtype) + + low_idx = jnp.floor(timesteps).astype(jnp.int32) + high_idx = jnp.ceil(timesteps).astype(jnp.int32) + + frac = jnp.mod(timesteps, 1.0) + + sigmas = ((1 - state.common.alphas_cumprod) / state.common.alphas_cumprod) ** 0.5 + sigmas = (1 - frac) * sigmas[low_idx] + frac * sigmas[high_idx] + sigmas = jnp.concatenate([sigmas, jnp.array([0.0], dtype=self.dtype)]) + + timesteps = timesteps.astype(jnp.int32) + + # initial running values + derivatives = jnp.zeros((0,) + shape, dtype=self.dtype) + + return state.replace( + timesteps=timesteps, + sigmas=sigmas, + num_inference_steps=num_inference_steps, + derivatives=derivatives, + ) + + def step( + self, + state: LMSDiscreteSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + order: int = 4, + return_dict: bool = True, + ) -> Union[FlaxLMSSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + state (`LMSDiscreteSchedulerState`): the `FlaxLMSDiscreteScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + order: coefficient for multi-step inference. + return_dict (`bool`): option for returning tuple rather than FlaxLMSSchedulerOutput class + + Returns: + [`FlaxLMSSchedulerOutput`] or `tuple`: [`FlaxLMSSchedulerOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + if state.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + sigma = state.sigmas[timestep] + + # 1. compute predicted original sample (x_0) from sigma-scaled predicted noise + if self.config.prediction_type == "epsilon": + pred_original_sample = sample - sigma * model_output + elif self.config.prediction_type == "v_prediction": + # * c_out + input * c_skip + pred_original_sample = model_output * (-sigma / (sigma**2 + 1) ** 0.5) + (sample / (sigma**2 + 1)) + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, or `v_prediction`" + ) + + # 2. Convert to an ODE derivative + derivative = (sample - pred_original_sample) / sigma + state = state.replace(derivatives=jnp.append(state.derivatives, derivative)) + if len(state.derivatives) > order: + state = state.replace(derivatives=jnp.delete(state.derivatives, 0)) + + # 3. Compute linear multistep coefficients + order = min(timestep + 1, order) + lms_coeffs = [self.get_lms_coefficient(state, order, timestep, curr_order) for curr_order in range(order)] + + # 4. Compute previous sample based on the derivatives path + prev_sample = sample + sum( + coeff * derivative for coeff, derivative in zip(lms_coeffs, reversed(state.derivatives)) + ) + + if not return_dict: + return (prev_sample, state) + + return FlaxLMSSchedulerOutput(prev_sample=prev_sample, state=state) + + def add_noise( + self, + state: LMSDiscreteSchedulerState, + original_samples: jnp.ndarray, + noise: jnp.ndarray, + timesteps: jnp.ndarray, + ) -> jnp.ndarray: + sigma = state.sigmas[timesteps].flatten() + sigma = broadcast_to_shape_from_left(sigma, noise.shape) + + noisy_samples = original_samples + noise * sigma + + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_pndm.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_pndm.py new file mode 100644 index 0000000000000000000000000000000000000000..651532b06ddbede3c2bb5bce741d1873b5244be0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_pndm.py @@ -0,0 +1,497 @@ +# Copyright 2025 Zhejiang University Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/ermongroup/ddim + +import math +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin, SchedulerOutput + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class PNDMScheduler(SchedulerMixin, ConfigMixin): + """ + `PNDMScheduler` uses pseudo numerical methods for diffusion models such as the Runge-Kutta and linear multi-step + method. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to `1000`): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to `0.0001`): + The starting `beta` value of inference. + beta_end (`float`, defaults to `0.02`): + The final `beta` value. + beta_schedule (`"linear"`, `"scaled_linear"`, or `"squaredcos_cap_v2"`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + skip_prk_steps (`bool`, defaults to `False`): + Allows the scheduler to skip the Runge-Kutta steps defined in the original paper as being required before + PLMS steps. + set_alpha_to_one (`bool`, defaults to `False`): + Each diffusion step uses the alphas product value at that step and at the previous one. For the final step + there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the alpha value at step 0. + prediction_type (`"epsilon"` or `"v_prediction"`, defaults to `"epsilon"`): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process) + or `v_prediction` (see section 2.4 of [Imagen Video](https://huggingface.co/papers/2210.02303) paper). + timestep_spacing (`"linspace"`, `"leading"`, or `"trailing"`, defaults to `"leading"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to `0`): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: Literal["linear", "scaled_linear", "squaredcos_cap_v2"] = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + skip_prk_steps: bool = False, + set_alpha_to_one: bool = False, + prediction_type: Literal["epsilon", "v_prediction"] = "epsilon", + timestep_spacing: Literal["linspace", "leading", "trailing"] = "leading", + steps_offset: int = 0, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + self.final_alpha_cumprod = torch.tensor(1.0) if set_alpha_to_one else self.alphas_cumprod[0] + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # For now we only support F-PNDM, i.e. the runge-kutta method + # For more information on the algorithm please take a look at the paper: https://huggingface.co/papers/2202.09778 + # mainly at formula (9), (12), (13) and the Algorithm 2. + self.pndm_order = 4 + + # running values + self.cur_model_output = 0 + self.counter = 0 + self.cur_sample = None + self.ets = [] + + # setable values + self.num_inference_steps = None + self._timesteps = np.arange(0, num_train_timesteps)[::-1].copy() + self.prk_timesteps = None + self.plms_timesteps = None + self.timesteps = None + + def set_timesteps(self, num_inference_steps: int, device: Optional[Union[str, torch.device]] = None) -> None: + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + + self.num_inference_steps = num_inference_steps + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + self._timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps).round().astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + self._timesteps = (np.arange(0, num_inference_steps) * step_ratio).round() + self._timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / self.num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + self._timesteps = np.round(np.arange(self.config.num_train_timesteps, 0, -step_ratio))[::-1].astype( + np.int64 + ) + self._timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + if self.config.skip_prk_steps: + # for some models like stable diffusion the prk steps can/should be skipped to + # produce better results. When using PNDM with `self.config.skip_prk_steps` the implementation + # is based on crowsonkb's PLMS sampler implementation: https://github.com/CompVis/latent-diffusion/pull/51 + self.prk_timesteps = np.array([]) + self.plms_timesteps = np.concatenate([self._timesteps[:-1], self._timesteps[-2:-1], self._timesteps[-1:]])[ + ::-1 + ].copy() + else: + prk_timesteps = np.array(self._timesteps[-self.pndm_order :]).repeat(2) + np.tile( + np.array([0, self.config.num_train_timesteps // num_inference_steps // 2]), self.pndm_order + ) + self.prk_timesteps = (prk_timesteps[:-1].repeat(2)[1:-1])[::-1].copy() + self.plms_timesteps = self._timesteps[:-3][ + ::-1 + ].copy() # we copy to avoid having negative strides which are not supported by torch.from_numpy + + timesteps = np.concatenate([self.prk_timesteps, self.plms_timesteps]).astype(np.int64) + self.timesteps = torch.from_numpy(timesteps).to(device) + + self.ets = [] + self.counter = 0 + self.cur_model_output = 0 + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise), and calls [`~PNDMScheduler.step_prk`] + or [`~PNDMScheduler.step_plms`] depending on the internal variable `counter`. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.counter < len(self.prk_timesteps) and not self.config.skip_prk_steps: + return self.step_prk(model_output=model_output, timestep=timestep, sample=sample, return_dict=return_dict) + else: + return self.step_plms(model_output=model_output, timestep=timestep, sample=sample, return_dict=return_dict) + + def step_prk( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the Runge-Kutta method. It performs four forward passes to approximate the solution to the differential + equation. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or tuple. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + diff_to_prev = 0 if self.counter % 2 else self.config.num_train_timesteps // self.num_inference_steps // 2 + prev_timestep = timestep - diff_to_prev + timestep = self.prk_timesteps[self.counter // 4 * 4] + + if self.counter % 4 == 0: + self.cur_model_output += 1 / 6 * model_output + self.ets.append(model_output) + self.cur_sample = sample + elif (self.counter - 1) % 4 == 0: + self.cur_model_output += 1 / 3 * model_output + elif (self.counter - 2) % 4 == 0: + self.cur_model_output += 1 / 3 * model_output + elif (self.counter - 3) % 4 == 0: + model_output = self.cur_model_output + 1 / 6 * model_output + self.cur_model_output = 0 + + # cur_sample should not be `None` + cur_sample = self.cur_sample if self.cur_sample is not None else sample + + prev_sample = self._get_prev_sample(cur_sample, timestep, prev_timestep, model_output) + self.counter += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def step_plms( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the linear multistep method. It performs one forward pass multiple times to approximate the solution. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or tuple. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if not self.config.skip_prk_steps and len(self.ets) < 3: + raise ValueError( + f"{self.__class__} can only be run AFTER scheduler has been run " + "in 'prk' mode for at least 12 iterations " + "See: https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/pipeline_pndm.py " + "for more information." + ) + + prev_timestep = timestep - self.config.num_train_timesteps // self.num_inference_steps + + if self.counter != 1: + self.ets = self.ets[-3:] + self.ets.append(model_output) + else: + prev_timestep = timestep + timestep = timestep + self.config.num_train_timesteps // self.num_inference_steps + + if len(self.ets) == 1 and self.counter == 0: + model_output = model_output + self.cur_sample = sample + elif len(self.ets) == 1 and self.counter == 1: + model_output = (model_output + self.ets[-1]) / 2 + sample = self.cur_sample + self.cur_sample = None + elif len(self.ets) == 2: + model_output = (3 * self.ets[-1] - self.ets[-2]) / 2 + elif len(self.ets) == 3: + model_output = (23 * self.ets[-1] - 16 * self.ets[-2] + 5 * self.ets[-3]) / 12 + else: + model_output = (1 / 24) * (55 * self.ets[-1] - 59 * self.ets[-2] + 37 * self.ets[-3] - 9 * self.ets[-4]) + + prev_sample = self._get_prev_sample(sample, timestep, prev_timestep, model_output) + self.counter += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def scale_model_input(self, sample: torch.Tensor, *args, **kwargs) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def _get_prev_sample( + self, sample: torch.Tensor, timestep: int, prev_timestep: int, model_output: torch.Tensor + ) -> torch.Tensor: + """ + Compute the previous sample x_(t-δ) from the current sample x_t using formula (9) from the [PNDM + paper](https://huggingface.co/papers/2202.09778). + + Args: + sample (`torch.Tensor`): + The current sample x_t. + timestep (`int`): + The current timestep t. + prev_timestep (`int`): + The previous timestep (t-δ). + model_output (`torch.Tensor`): + The model output e_θ(x_t, t). + + Returns: + `torch.Tensor`: + The previous sample x_(t-δ). + """ + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + if self.config.prediction_type == "v_prediction": + model_output = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + elif self.config.prediction_type != "epsilon": + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon` or `v_prediction`" + ) + + # corresponds to (α_(t−δ) - α_t) divided by + # denominator of x_t in formula (9) and plus 1 + # Note: (α_(t−δ) - α_t) / (sqrt(α_t) * (sqrt(α_(t−δ)) + sqr(α_t))) = + # sqrt(α_(t−δ)) / sqrt(α_t)) + sample_coeff = (alpha_prod_t_prev / alpha_prod_t) ** (0.5) + + # corresponds to denominator of e_θ(x_t, t) in formula (9) + model_output_denom_coeff = alpha_prod_t * beta_prod_t_prev ** (0.5) + ( + alpha_prod_t * beta_prod_t * alpha_prod_t_prev + ) ** (0.5) + + # full formula (9) + prev_sample = ( + sample_coeff * sample - (alpha_prod_t_prev - alpha_prod_t) * model_output / model_output_denom_coeff + ) + + return prev_sample + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + def __len__(self) -> int: + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_pndm_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_pndm_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..12e22005afaf700f8d145433a9c35cc029500cae --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_pndm_flax.py @@ -0,0 +1,509 @@ +# Copyright 2025 Zhejiang University Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/ermongroup/ddim + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import flax +import jax +import jax.numpy as jnp + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils_flax import ( + CommonSchedulerState, + FlaxKarrasDiffusionSchedulers, + FlaxSchedulerMixin, + FlaxSchedulerOutput, + add_noise_common, +) + + +@flax.struct.dataclass +class PNDMSchedulerState: + common: CommonSchedulerState + final_alpha_cumprod: jnp.ndarray + + # setable values + init_noise_sigma: jnp.ndarray + timesteps: jnp.ndarray + num_inference_steps: Optional[int] = None + prk_timesteps: Optional[jnp.ndarray] = None + plms_timesteps: Optional[jnp.ndarray] = None + + # running values + cur_model_output: Optional[jnp.ndarray] = None + counter: Optional[jnp.int32] = None + cur_sample: Optional[jnp.ndarray] = None + ets: Optional[jnp.ndarray] = None + + @classmethod + def create( + cls, + common: CommonSchedulerState, + final_alpha_cumprod: jnp.ndarray, + init_noise_sigma: jnp.ndarray, + timesteps: jnp.ndarray, + ): + return cls( + common=common, + final_alpha_cumprod=final_alpha_cumprod, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + ) + + +@dataclass +class FlaxPNDMSchedulerOutput(FlaxSchedulerOutput): + state: PNDMSchedulerState + + +class FlaxPNDMScheduler(FlaxSchedulerMixin, ConfigMixin): + """ + Pseudo numerical methods for diffusion models (PNDM) proposes using more advanced ODE integration techniques, + namely Runge-Kutta method and a linear multi-step method. + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + For more details, see the original paper: https://huggingface.co/papers/2202.09778 + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + beta_start (`float`): the starting `beta` value of inference. + beta_end (`float`): the final `beta` value. + beta_schedule (`str`): + the beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`jnp.ndarray`, optional): + option to pass an array of betas directly to the constructor to bypass `beta_start`, `beta_end` etc. + skip_prk_steps (`bool`): + allows the scheduler to skip the Runge-Kutta steps that are defined in the original paper as being required + before plms steps; defaults to `False`. + set_alpha_to_one (`bool`, default `False`): + each diffusion step uses the value of alphas product at that step and at the previous one. For the final + step there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the value of alpha at step 0. + steps_offset (`int`, default `0`): + An offset added to the inference steps, as required by some model families. + prediction_type (`str`, default `epsilon`, optional): + prediction type of the scheduler function, one of `epsilon` (predicting the noise of the diffusion + process), `sample` (directly predicting the noisy sample`) or `v_prediction` (see section 2.4 + https://imagen.research.google/video/paper.pdf) + dtype (`jnp.dtype`, *optional*, defaults to `jnp.float32`): + the `dtype` used for params and computation. + """ + + _compatibles = [e.name for e in FlaxKarrasDiffusionSchedulers] + + dtype: jnp.dtype + pndm_order: int + + @property + def has_state(self): + return True + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[jnp.ndarray] = None, + skip_prk_steps: bool = False, + set_alpha_to_one: bool = False, + steps_offset: int = 0, + prediction_type: str = "epsilon", + dtype: jnp.dtype = jnp.float32, + ): + self.dtype = dtype + + # For now we only support F-PNDM, i.e. the runge-kutta method + # For more information on the algorithm please take a look at the paper: https://huggingface.co/papers/2202.09778 + # mainly at formula (9), (12), (13) and the Algorithm 2. + self.pndm_order = 4 + + def create_state(self, common: Optional[CommonSchedulerState] = None) -> PNDMSchedulerState: + if common is None: + common = CommonSchedulerState.create(self) + + # At every step in ddim, we are looking into the previous alphas_cumprod + # For the final step, there is no previous alphas_cumprod because we are already at 0 + # `set_alpha_to_one` decides whether we set this parameter simply to one or + # whether we use the final alpha of the "non-previous" one. + final_alpha_cumprod = ( + jnp.array(1.0, dtype=self.dtype) if self.config.set_alpha_to_one else common.alphas_cumprod[0] + ) + + # standard deviation of the initial noise distribution + init_noise_sigma = jnp.array(1.0, dtype=self.dtype) + + timesteps = jnp.arange(0, self.config.num_train_timesteps).round()[::-1] + + return PNDMSchedulerState.create( + common=common, + final_alpha_cumprod=final_alpha_cumprod, + init_noise_sigma=init_noise_sigma, + timesteps=timesteps, + ) + + def set_timesteps(self, state: PNDMSchedulerState, num_inference_steps: int, shape: Tuple) -> PNDMSchedulerState: + """ + Sets the discrete timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + state (`PNDMSchedulerState`): + the `FlaxPNDMScheduler` state data class instance. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + shape (`Tuple`): + the shape of the samples to be generated. + """ + + step_ratio = self.config.num_train_timesteps // num_inference_steps + # creates integer timesteps by multiplying by ratio + # rounding to avoid issues when num_inference_step is power of 3 + _timesteps = (jnp.arange(0, num_inference_steps) * step_ratio).round() + self.config.steps_offset + + if self.config.skip_prk_steps: + # for some models like stable diffusion the prk steps can/should be skipped to + # produce better results. When using PNDM with `self.config.skip_prk_steps` the implementation + # is based on crowsonkb's PLMS sampler implementation: https://github.com/CompVis/latent-diffusion/pull/51 + + prk_timesteps = jnp.array([], dtype=jnp.int32) + plms_timesteps = jnp.concatenate([_timesteps[:-1], _timesteps[-2:-1], _timesteps[-1:]])[::-1] + + else: + prk_timesteps = _timesteps[-self.pndm_order :].repeat(2) + jnp.tile( + jnp.array([0, self.config.num_train_timesteps // num_inference_steps // 2], dtype=jnp.int32), + self.pndm_order, + ) + + prk_timesteps = (prk_timesteps[:-1].repeat(2)[1:-1])[::-1] + plms_timesteps = _timesteps[:-3][::-1] + + timesteps = jnp.concatenate([prk_timesteps, plms_timesteps]) + + # initial running values + + cur_model_output = jnp.zeros(shape, dtype=self.dtype) + counter = jnp.int32(0) + cur_sample = jnp.zeros(shape, dtype=self.dtype) + ets = jnp.zeros((4,) + shape, dtype=self.dtype) + + return state.replace( + timesteps=timesteps, + num_inference_steps=num_inference_steps, + prk_timesteps=prk_timesteps, + plms_timesteps=plms_timesteps, + cur_model_output=cur_model_output, + counter=counter, + cur_sample=cur_sample, + ets=ets, + ) + + def scale_model_input( + self, state: PNDMSchedulerState, sample: jnp.ndarray, timestep: Optional[int] = None + ) -> jnp.ndarray: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + state (`PNDMSchedulerState`): the `FlaxPNDMScheduler` state data class instance. + sample (`jnp.ndarray`): input sample + timestep (`int`, optional): current timestep + + Returns: + `jnp.ndarray`: scaled input sample + """ + return sample + + def step( + self, + state: PNDMSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + return_dict: bool = True, + ) -> Union[FlaxPNDMSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + This function calls `step_prk()` or `step_plms()` depending on the internal variable `counter`. + + Args: + state (`PNDMSchedulerState`): the `FlaxPNDMScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + return_dict (`bool`): option for returning tuple rather than FlaxPNDMSchedulerOutput class + + Returns: + [`FlaxPNDMSchedulerOutput`] or `tuple`: [`FlaxPNDMSchedulerOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + + if state.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.config.skip_prk_steps: + prev_sample, state = self.step_plms(state, model_output, timestep, sample) + else: + prk_prev_sample, prk_state = self.step_prk(state, model_output, timestep, sample) + plms_prev_sample, plms_state = self.step_plms(state, model_output, timestep, sample) + + cond = state.counter < len(state.prk_timesteps) + + prev_sample = jax.lax.select(cond, prk_prev_sample, plms_prev_sample) + + state = state.replace( + cur_model_output=jax.lax.select(cond, prk_state.cur_model_output, plms_state.cur_model_output), + ets=jax.lax.select(cond, prk_state.ets, plms_state.ets), + cur_sample=jax.lax.select(cond, prk_state.cur_sample, plms_state.cur_sample), + counter=jax.lax.select(cond, prk_state.counter, plms_state.counter), + ) + + if not return_dict: + return (prev_sample, state) + + return FlaxPNDMSchedulerOutput(prev_sample=prev_sample, state=state) + + def step_prk( + self, + state: PNDMSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + ) -> Union[FlaxPNDMSchedulerOutput, Tuple]: + """ + Step function propagating the sample with the Runge-Kutta method. RK takes 4 forward passes to approximate the + solution to the differential equation. + + Args: + state (`PNDMSchedulerState`): the `FlaxPNDMScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + return_dict (`bool`): option for returning tuple rather than FlaxPNDMSchedulerOutput class + + Returns: + [`FlaxPNDMSchedulerOutput`] or `tuple`: [`FlaxPNDMSchedulerOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + + if state.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + diff_to_prev = jnp.where( + state.counter % 2, 0, self.config.num_train_timesteps // state.num_inference_steps // 2 + ) + prev_timestep = timestep - diff_to_prev + timestep = state.prk_timesteps[state.counter // 4 * 4] + + model_output = jax.lax.select( + (state.counter % 4) != 3, + model_output, # remainder 0, 1, 2 + state.cur_model_output + 1 / 6 * model_output, # remainder 3 + ) + + state = state.replace( + cur_model_output=jax.lax.select_n( + state.counter % 4, + state.cur_model_output + 1 / 6 * model_output, # remainder 0 + state.cur_model_output + 1 / 3 * model_output, # remainder 1 + state.cur_model_output + 1 / 3 * model_output, # remainder 2 + jnp.zeros_like(state.cur_model_output), # remainder 3 + ), + ets=jax.lax.select( + (state.counter % 4) == 0, + state.ets.at[0:3].set(state.ets[1:4]).at[3].set(model_output), # remainder 0 + state.ets, # remainder 1, 2, 3 + ), + cur_sample=jax.lax.select( + (state.counter % 4) == 0, + sample, # remainder 0 + state.cur_sample, # remainder 1, 2, 3 + ), + ) + + cur_sample = state.cur_sample + prev_sample = self._get_prev_sample(state, cur_sample, timestep, prev_timestep, model_output) + state = state.replace(counter=state.counter + 1) + + return (prev_sample, state) + + def step_plms( + self, + state: PNDMSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + ) -> Union[FlaxPNDMSchedulerOutput, Tuple]: + """ + Step function propagating the sample with the linear multi-step method. This has one forward pass with multiple + times to approximate the solution. + + Args: + state (`PNDMSchedulerState`): the `FlaxPNDMScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + return_dict (`bool`): option for returning tuple rather than FlaxPNDMSchedulerOutput class + + Returns: + [`FlaxPNDMSchedulerOutput`] or `tuple`: [`FlaxPNDMSchedulerOutput`] if `return_dict` is True, otherwise a + `tuple`. When returning a tuple, the first element is the sample tensor. + + """ + + if state.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + # NOTE: There is no way to check in the jitted runtime if the prk mode was ran before + + prev_timestep = timestep - self.config.num_train_timesteps // state.num_inference_steps + prev_timestep = jnp.where(prev_timestep > 0, prev_timestep, 0) + + # Reference: + # if state.counter != 1: + # state.ets.append(model_output) + # else: + # prev_timestep = timestep + # timestep = timestep + self.config.num_train_timesteps // state.num_inference_steps + + prev_timestep = jnp.where(state.counter == 1, timestep, prev_timestep) + timestep = jnp.where( + state.counter == 1, timestep + self.config.num_train_timesteps // state.num_inference_steps, timestep + ) + + # Reference: + # if len(state.ets) == 1 and state.counter == 0: + # model_output = model_output + # state.cur_sample = sample + # elif len(state.ets) == 1 and state.counter == 1: + # model_output = (model_output + state.ets[-1]) / 2 + # sample = state.cur_sample + # state.cur_sample = None + # elif len(state.ets) == 2: + # model_output = (3 * state.ets[-1] - state.ets[-2]) / 2 + # elif len(state.ets) == 3: + # model_output = (23 * state.ets[-1] - 16 * state.ets[-2] + 5 * state.ets[-3]) / 12 + # else: + # model_output = (1 / 24) * (55 * state.ets[-1] - 59 * state.ets[-2] + 37 * state.ets[-3] - 9 * state.ets[-4]) + + state = state.replace( + ets=jax.lax.select( + state.counter != 1, + state.ets.at[0:3].set(state.ets[1:4]).at[3].set(model_output), # counter != 1 + state.ets, # counter 1 + ), + cur_sample=jax.lax.select( + state.counter != 1, + sample, # counter != 1 + state.cur_sample, # counter 1 + ), + ) + + state = state.replace( + cur_model_output=jax.lax.select_n( + jnp.clip(state.counter, 0, 4), + model_output, # counter 0 + (model_output + state.ets[-1]) / 2, # counter 1 + (3 * state.ets[-1] - state.ets[-2]) / 2, # counter 2 + (23 * state.ets[-1] - 16 * state.ets[-2] + 5 * state.ets[-3]) / 12, # counter 3 + (1 / 24) + * (55 * state.ets[-1] - 59 * state.ets[-2] + 37 * state.ets[-3] - 9 * state.ets[-4]), # counter >= 4 + ), + ) + + sample = state.cur_sample + model_output = state.cur_model_output + prev_sample = self._get_prev_sample(state, sample, timestep, prev_timestep, model_output) + state = state.replace(counter=state.counter + 1) + + return (prev_sample, state) + + def _get_prev_sample(self, state: PNDMSchedulerState, sample, timestep, prev_timestep, model_output): + # See formula (9) of PNDM paper https://huggingface.co/papers/2202.09778 + # this function computes x_(t−δ) using the formula of (9) + # Note that x_t needs to be added to both sides of the equation + + # Notation ( -> + # alpha_prod_t -> α_t + # alpha_prod_t_prev -> α_(t−δ) + # beta_prod_t -> (1 - α_t) + # beta_prod_t_prev -> (1 - α_(t−δ)) + # sample -> x_t + # model_output -> e_θ(x_t, t) + # prev_sample -> x_(t−δ) + alpha_prod_t = state.common.alphas_cumprod[timestep] + alpha_prod_t_prev = jnp.where( + prev_timestep >= 0, state.common.alphas_cumprod[prev_timestep], state.final_alpha_cumprod + ) + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + if self.config.prediction_type == "v_prediction": + model_output = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + elif self.config.prediction_type != "epsilon": + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon` or `v_prediction`" + ) + + # corresponds to (α_(t−δ) - α_t) divided by + # denominator of x_t in formula (9) and plus 1 + # Note: (α_(t−δ) - α_t) / (sqrt(α_t) * (sqrt(α_(t−δ)) + sqr(α_t))) = + # sqrt(α_(t−δ)) / sqrt(α_t)) + sample_coeff = (alpha_prod_t_prev / alpha_prod_t) ** (0.5) + + # corresponds to denominator of e_θ(x_t, t) in formula (9) + model_output_denom_coeff = alpha_prod_t * beta_prod_t_prev ** (0.5) + ( + alpha_prod_t * beta_prod_t * alpha_prod_t_prev + ) ** (0.5) + + # full formula (9) + prev_sample = ( + sample_coeff * sample - (alpha_prod_t_prev - alpha_prod_t) * model_output / model_output_denom_coeff + ) + + return prev_sample + + def add_noise( + self, + state: PNDMSchedulerState, + original_samples: jnp.ndarray, + noise: jnp.ndarray, + timesteps: jnp.ndarray, + ) -> jnp.ndarray: + return add_noise_common(state.common, original_samples, noise, timesteps) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_repaint.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_repaint.py new file mode 100644 index 0000000000000000000000000000000000000000..a2eaf8eb3abdf2df26edcb0f85c324aeea19aa35 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_repaint.py @@ -0,0 +1,366 @@ +# Copyright 2025 ETH Zurich Computer Vision Lab and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +@dataclass +class RePaintSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's step function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample (x_{t-1}) of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample (x_{0}) based on the model output from + the current timestep. `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: torch.Tensor + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class RePaintScheduler(SchedulerMixin, ConfigMixin): + """ + `RePaintScheduler` is a scheduler for DDPM inpainting inside a given mask. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, `squaredcos_cap_v2`, or `sigmoid`. + eta (`float`): + The weight of noise for added noise in diffusion step. If its value is between 0.0 and 1.0 it corresponds + to the DDIM scheduler, and if its value is between -0.0 and 1.0 it corresponds to the DDPM scheduler. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample between -1 and 1 for numerical stability. + + """ + + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + eta: float = 0.0, + trained_betas: Optional[np.ndarray] = None, + clip_sample: bool = True, + ): + if trained_betas is not None: + self.betas = torch.from_numpy(trained_betas) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + elif beta_schedule == "sigmoid": + # GeoDiff sigmoid schedule + betas = torch.linspace(-6, 6, num_train_timesteps) + self.betas = torch.sigmoid(betas) * (beta_end - beta_start) + beta_start + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + self.one = torch.tensor(1.0) + + self.final_alpha_cumprod = torch.tensor(1.0) + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy()) + + self.eta = eta + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def set_timesteps( + self, + num_inference_steps: int, + jump_length: int = 10, + jump_n_sample: int = 10, + device: Union[str, torch.device] = None, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, + `timesteps` must be `None`. + jump_length (`int`, defaults to 10): + The number of steps taken forward in time before going backward in time for a single jump (“j” in + RePaint paper). Take a look at Figure 9 and 10 in the paper. + jump_n_sample (`int`, defaults to 10): + The number of times to make a forward time jump for a given chosen time sample. Take a look at Figure 9 + and 10 in the paper. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + + """ + num_inference_steps = min(self.config.num_train_timesteps, num_inference_steps) + self.num_inference_steps = num_inference_steps + + timesteps = [] + + jumps = {} + for j in range(0, num_inference_steps - jump_length, jump_length): + jumps[j] = jump_n_sample - 1 + + t = num_inference_steps + while t >= 1: + t = t - 1 + timesteps.append(t) + + if jumps.get(t, 0) > 0: + jumps[t] = jumps[t] - 1 + for _ in range(jump_length): + t = t + 1 + timesteps.append(t) + + timesteps = np.array(timesteps) * (self.config.num_train_timesteps // self.num_inference_steps) + self.timesteps = torch.from_numpy(timesteps).to(device) + + def _get_variance(self, t): + prev_timestep = t - self.config.num_train_timesteps // self.num_inference_steps + + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + # For t > 0, compute predicted variance βt (see formula (6) and (7) from + # https://huggingface.co/papers/2006.11239) and sample from it to get + # previous sample x_{t-1} ~ N(pred_prev_sample, variance) == add + # variance to pred_sample + # Is equivalent to formula (16) in https://huggingface.co/papers/2010.02502 + # without eta. + # variance = (1 - alpha_prod_t_prev) / (1 - alpha_prod_t) * self.betas[t] + variance = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + + return variance + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + original_image: torch.Tensor, + mask: torch.Tensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[RePaintSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + original_image (`torch.Tensor`): + The original image to inpaint on. + mask (`torch.Tensor`): + The mask where a value of 0.0 indicates which part of the original image to inpaint. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_repaint.RePaintSchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_repaint.RePaintSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_repaint.RePaintSchedulerOutput`] is returned, + otherwise a tuple is returned where the first element is the sample tensor. + + """ + t = timestep + prev_timestep = timestep - self.config.num_train_timesteps // self.num_inference_steps + + # 1. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + beta_prod_t = 1 - alpha_prod_t + + # 2. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (15) from https://huggingface.co/papers/2006.11239 + pred_original_sample = (sample - beta_prod_t**0.5 * model_output) / alpha_prod_t**0.5 + + # 3. Clip "predicted x_0" + if self.config.clip_sample: + pred_original_sample = torch.clamp(pred_original_sample, -1, 1) + + # We choose to follow RePaint Algorithm 1 to get x_{t-1}, however we + # substitute formula (7) in the algorithm coming from DDPM paper + # (formula (4) Algorithm 2 - Sampling) with formula (12) from DDIM paper. + # DDIM schedule gives the same results as DDPM with eta = 1.0 + # Noise is being reused in 7. and 8., but no impact on quality has + # been observed. + + # 5. Add noise + device = model_output.device + noise = randn_tensor(model_output.shape, generator=generator, device=device, dtype=model_output.dtype) + std_dev_t = self.eta * self._get_variance(timestep) ** 0.5 + + variance = 0 + if t > 0 and self.eta > 0: + variance = std_dev_t * noise + + # 6. compute "direction pointing to x_t" of formula (12) + # from https://huggingface.co/papers/2010.02502 + pred_sample_direction = (1 - alpha_prod_t_prev - std_dev_t**2) ** 0.5 * model_output + + # 7. compute x_{t-1} of formula (12) from https://huggingface.co/papers/2010.02502 + prev_unknown_part = alpha_prod_t_prev**0.5 * pred_original_sample + pred_sample_direction + variance + + # 8. Algorithm 1 Line 5 https://huggingface.co/papers/2201.09865 + # The computation reported in Algorithm 1 Line 5 is incorrect. Line 5 refers to formula (8a) of the same paper, + # which tells to sample from a Gaussian distribution with mean "(alpha_prod_t_prev**0.5) * original_image" + # and variance "(1 - alpha_prod_t_prev)". This means that the standard Gaussian distribution "noise" should be + # scaled by the square root of the variance (as it is done here), however Algorithm 1 Line 5 tells to scale by the variance. + prev_known_part = (alpha_prod_t_prev**0.5) * original_image + ((1 - alpha_prod_t_prev) ** 0.5) * noise + + # 9. Algorithm 1 Line 8 https://huggingface.co/papers/2201.09865 + pred_prev_sample = mask * prev_known_part + (1.0 - mask) * prev_unknown_part + + if not return_dict: + return ( + pred_prev_sample, + pred_original_sample, + ) + + return RePaintSchedulerOutput(prev_sample=pred_prev_sample, pred_original_sample=pred_original_sample) + + def undo_step(self, sample, timestep, generator=None): + n = self.config.num_train_timesteps // self.num_inference_steps + + for i in range(n): + beta = self.betas[timestep + i] + if sample.device.type == "mps": + # randn does not work reproducibly on mps + noise = randn_tensor(sample.shape, dtype=sample.dtype, generator=generator) + noise = noise.to(sample.device) + else: + noise = randn_tensor(sample.shape, generator=generator, device=sample.device, dtype=sample.dtype) + + # 10. Algorithm 1 Line 10 https://huggingface.co/papers/2201.09865 + sample = (1 - beta) ** 0.5 * sample + beta**0.5 * noise + + return sample + + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + raise NotImplementedError("Use `DDPMScheduler.add_noise()` to train for sampling with RePaint.") + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sasolver.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sasolver.py new file mode 100644 index 0000000000000000000000000000000000000000..d9054c39c9de177841b5c818e9c31bb03de885a5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sasolver.py @@ -0,0 +1,1299 @@ +# Copyright 2025 Shuchen Xue, etc. in University of Chinese Academy of Sciences Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: check https://huggingface.co/papers/2309.05019 +# The codebase is modified based on https://github.com/huggingface/diffusers/blob/main/src/diffusers/schedulers/scheduling_dpmsolver_multistep.py + +import math +from typing import Callable, List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import deprecate, is_scipy_available +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin, SchedulerOutput + + +if is_scipy_available(): + import scipy.stats + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class SASolverScheduler(SchedulerMixin, ConfigMixin): + """ + `SASolverScheduler` is a fast dedicated high-order solver for diffusion SDEs. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + predictor_order (`int`, defaults to 2): + The predictor order which can be `1` or `2` or `3` or '4'. It is recommended to use `predictor_order=2` for + guided sampling, and `predictor_order=3` for unconditional sampling. + corrector_order (`int`, defaults to 2): + The corrector order which can be `1` or `2` or `3` or '4'. It is recommended to use `corrector_order=2` for + guided sampling, and `corrector_order=3` for unconditional sampling. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + tau_func (`Callable`, *optional*): + Stochasticity during the sampling. Default in init is `lambda t: 1 if t >= 200 and t <= 800 else 0`. + SA-Solver will sample from vanilla diffusion ODE if tau_func is set to `lambda t: 0`. SA-Solver will sample + from vanilla diffusion SDE if tau_func is set to `lambda t: 1`. For more details, please check + https://huggingface.co/papers/2309.05019 + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True` and + `algorithm_type="dpmsolver++"`. + algorithm_type (`str`, defaults to `data_prediction`): + Algorithm type for the solver; can be `data_prediction` or `noise_prediction`. It is recommended to use + `data_prediction` with `solver_order=2` for guided sampling like in Stable Diffusion. + lower_order_final (`bool`, defaults to `True`): + Whether to use lower-order solvers in the final steps. Default = True. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + lambda_min_clipped (`float`, defaults to `-inf`): + Clipping threshold for the minimum value of `lambda(t)` for numerical stability. This is critical for the + cosine (`squaredcos_cap_v2`) noise schedule. + variance_type (`str`, *optional*): + Set to "learned" or "learned_range" for diffusion models that predict variance. If set, the model's output + contains the predicted Gaussian variance. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + predictor_order: int = 2, + corrector_order: int = 2, + prediction_type: str = "epsilon", + tau_func: Optional[Callable] = None, + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + algorithm_type: str = "data_prediction", + lower_order_final: bool = True, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + use_flow_sigmas: Optional[bool] = False, + flow_shift: Optional[float] = 1.0, + lambda_min_clipped: float = -float("inf"), + variance_type: Optional[str] = None, + timestep_spacing: str = "linspace", + steps_offset: int = 0, + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = ( + torch.linspace( + beta_start**0.5, + beta_end**0.5, + num_train_timesteps, + dtype=torch.float32, + ) + ** 2 + ) + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + # Currently we only support VP-type noise schedule + self.alpha_t = torch.sqrt(self.alphas_cumprod) + self.sigma_t = torch.sqrt(1 - self.alphas_cumprod) + self.lambda_t = torch.log(self.alpha_t) - torch.log(self.sigma_t) + self.sigmas = ((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5 + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + if algorithm_type not in ["data_prediction", "noise_prediction"]: + raise NotImplementedError(f"{algorithm_type} is not implemented for {self.__class__}") + + # setable values + self.num_inference_steps = None + timesteps = np.linspace(0, num_train_timesteps - 1, num_train_timesteps, dtype=np.float32)[::-1].copy() + self.timesteps = torch.from_numpy(timesteps) + self.timestep_list = [None] * max(predictor_order, corrector_order - 1) + self.model_outputs = [None] * max(predictor_order, corrector_order - 1) + + if tau_func is None: + self.tau_func = lambda t: 1 if t >= 200 and t <= 800 else 0 + else: + self.tau_func = tau_func + self.predict_x0 = algorithm_type == "data_prediction" + self.lower_order_nums = 0 + self.last_sample = None + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_timesteps(self, num_inference_steps: int = None, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + # Clipping the minimum of all lambda(t) for numerical stability. + # This is critical for cosine (squaredcos_cap_v2) noise schedule. + clipped_idx = torch.searchsorted(torch.flip(self.lambda_t, [0]), self.config.lambda_min_clipped) + last_timestep = ((self.config.num_train_timesteps - clipped_idx).numpy()).item() + + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, last_timestep - 1, num_inference_steps + 1).round()[::-1][:-1].copy().astype(np.int64) + ) + + elif self.config.timestep_spacing == "leading": + step_ratio = last_timestep // (num_inference_steps + 1) + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps + 1) * step_ratio).round()[::-1][:-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.arange(last_timestep, 0, -step_ratio).round().copy().astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + log_sigmas = np.log(sigmas) + if self.config.use_karras_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]).round() + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_exponential_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_beta_sigmas: + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + elif self.config.use_flow_sigmas: + alphas = np.linspace(1, 1 / self.config.num_train_timesteps, num_inference_steps + 1) + sigmas = 1.0 - alphas + sigmas = np.flip(self.config.flow_shift * sigmas / (1 + (self.config.flow_shift - 1) * sigmas))[:-1].copy() + timesteps = (sigmas * self.config.num_train_timesteps).copy() + sigmas = np.concatenate([sigmas, sigmas[-1:]]).astype(np.float32) + else: + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + sigma_last = ((1 - self.alphas_cumprod[0]) / self.alphas_cumprod[0]) ** 0.5 + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + + self.sigmas = torch.from_numpy(sigmas) + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.int64) + + self.num_inference_steps = len(timesteps) + self.model_outputs = [ + None, + ] * max(self.config.predictor_order, self.config.corrector_order - 1) + self.lower_order_nums = 0 + self.last_sample = None + + # add an index counter for schedulers that allow duplicated timesteps + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._sigma_to_alpha_sigma_t + def _sigma_to_alpha_sigma_t(self, sigma): + if self.config.use_flow_sigmas: + alpha_t = 1 - sigma + sigma_t = sigma + else: + alpha_t = 1 / ((sigma**2 + 1) ** 0.5) + sigma_t = sigma * alpha_t + + return alpha_t, sigma_t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def convert_model_output( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + """ + Convert the model output to the corresponding type the data_prediction/noise_prediction algorithm needs. + Noise_prediction is designed to discretize an integral of the noise prediction model, and data_prediction is + designed to discretize an integral of the data prediction model. + + > [!TIP] > The algorithm and model type are decoupled. You can use either data_prediction or noise_prediction + for both > noise prediction and data prediction models. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The converted model output. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + if sample is None: + if len(args) > 1: + sample = args[1] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + # SA-Solver_data_prediction needs to solve an integral of the data prediction model. + if self.config.algorithm_type in ["data_prediction"]: + if self.config.prediction_type == "epsilon": + # SA-Solver only needs the "mean" output. + if self.config.variance_type in ["learned", "learned_range"]: + model_output = model_output[:, :3] + x0_pred = (sample - sigma_t * model_output) / alpha_t + elif self.config.prediction_type == "sample": + x0_pred = model_output + elif self.config.prediction_type == "v_prediction": + x0_pred = alpha_t * sample - sigma_t * model_output + elif self.config.prediction_type == "flow_prediction": + sigma_t = self.sigmas[self.step_index] + x0_pred = sample - sigma_t * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, " + "`v_prediction`, or `flow_prediction` for the SASolverScheduler." + ) + + if self.config.thresholding: + x0_pred = self._threshold_sample(x0_pred) + + return x0_pred + + # SA-Solver_noise_prediction needs to solve an integral of the noise prediction model. + elif self.config.algorithm_type in ["noise_prediction"]: + if self.config.prediction_type == "epsilon": + # SA-Solver only needs the "mean" output. + if self.config.variance_type in ["learned", "learned_range"]: + epsilon = model_output[:, :3] + else: + epsilon = model_output + elif self.config.prediction_type == "sample": + epsilon = (sample - alpha_t * model_output) / sigma_t + elif self.config.prediction_type == "v_prediction": + epsilon = alpha_t * model_output + sigma_t * sample + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction` for the SASolverScheduler." + ) + + if self.config.thresholding: + alpha_t, sigma_t = self.alpha_t[timestep], self.sigma_t[timestep] + x0_pred = (sample - sigma_t * epsilon) / alpha_t + x0_pred = self._threshold_sample(x0_pred) + epsilon = (sample - alpha_t * x0_pred) / sigma_t + + return epsilon + + def get_coefficients_exponential_negative(self, order, interval_start, interval_end): + """ + Calculate the integral of exp(-x) * x^order dx from interval_start to interval_end + """ + assert order in [0, 1, 2, 3], "order is only supported for 0, 1, 2 and 3" + + if order == 0: + return torch.exp(-interval_end) * (torch.exp(interval_end - interval_start) - 1) + elif order == 1: + return torch.exp(-interval_end) * ( + (interval_start + 1) * torch.exp(interval_end - interval_start) - (interval_end + 1) + ) + elif order == 2: + return torch.exp(-interval_end) * ( + (interval_start**2 + 2 * interval_start + 2) * torch.exp(interval_end - interval_start) + - (interval_end**2 + 2 * interval_end + 2) + ) + elif order == 3: + return torch.exp(-interval_end) * ( + (interval_start**3 + 3 * interval_start**2 + 6 * interval_start + 6) + * torch.exp(interval_end - interval_start) + - (interval_end**3 + 3 * interval_end**2 + 6 * interval_end + 6) + ) + + def get_coefficients_exponential_positive(self, order, interval_start, interval_end, tau): + """ + Calculate the integral of exp(x(1+tau^2)) * x^order dx from interval_start to interval_end + """ + assert order in [0, 1, 2, 3], "order is only supported for 0, 1, 2 and 3" + + # after change of variable(cov) + interval_end_cov = (1 + tau**2) * interval_end + interval_start_cov = (1 + tau**2) * interval_start + + if order == 0: + return ( + torch.exp(interval_end_cov) * (1 - torch.exp(-(interval_end_cov - interval_start_cov))) / (1 + tau**2) + ) + elif order == 1: + return ( + torch.exp(interval_end_cov) + * ( + (interval_end_cov - 1) + - (interval_start_cov - 1) * torch.exp(-(interval_end_cov - interval_start_cov)) + ) + / ((1 + tau**2) ** 2) + ) + elif order == 2: + return ( + torch.exp(interval_end_cov) + * ( + (interval_end_cov**2 - 2 * interval_end_cov + 2) + - (interval_start_cov**2 - 2 * interval_start_cov + 2) + * torch.exp(-(interval_end_cov - interval_start_cov)) + ) + / ((1 + tau**2) ** 3) + ) + elif order == 3: + return ( + torch.exp(interval_end_cov) + * ( + (interval_end_cov**3 - 3 * interval_end_cov**2 + 6 * interval_end_cov - 6) + - (interval_start_cov**3 - 3 * interval_start_cov**2 + 6 * interval_start_cov - 6) + * torch.exp(-(interval_end_cov - interval_start_cov)) + ) + / ((1 + tau**2) ** 4) + ) + + def lagrange_polynomial_coefficient(self, order, lambda_list): + """ + Calculate the coefficient of lagrange polynomial + """ + + assert order in [0, 1, 2, 3] + assert order == len(lambda_list) - 1 + if order == 0: + return [[1]] + elif order == 1: + return [ + [ + 1 / (lambda_list[0] - lambda_list[1]), + -lambda_list[1] / (lambda_list[0] - lambda_list[1]), + ], + [ + 1 / (lambda_list[1] - lambda_list[0]), + -lambda_list[0] / (lambda_list[1] - lambda_list[0]), + ], + ] + elif order == 2: + denominator1 = (lambda_list[0] - lambda_list[1]) * (lambda_list[0] - lambda_list[2]) + denominator2 = (lambda_list[1] - lambda_list[0]) * (lambda_list[1] - lambda_list[2]) + denominator3 = (lambda_list[2] - lambda_list[0]) * (lambda_list[2] - lambda_list[1]) + return [ + [ + 1 / denominator1, + (-lambda_list[1] - lambda_list[2]) / denominator1, + lambda_list[1] * lambda_list[2] / denominator1, + ], + [ + 1 / denominator2, + (-lambda_list[0] - lambda_list[2]) / denominator2, + lambda_list[0] * lambda_list[2] / denominator2, + ], + [ + 1 / denominator3, + (-lambda_list[0] - lambda_list[1]) / denominator3, + lambda_list[0] * lambda_list[1] / denominator3, + ], + ] + elif order == 3: + denominator1 = ( + (lambda_list[0] - lambda_list[1]) + * (lambda_list[0] - lambda_list[2]) + * (lambda_list[0] - lambda_list[3]) + ) + denominator2 = ( + (lambda_list[1] - lambda_list[0]) + * (lambda_list[1] - lambda_list[2]) + * (lambda_list[1] - lambda_list[3]) + ) + denominator3 = ( + (lambda_list[2] - lambda_list[0]) + * (lambda_list[2] - lambda_list[1]) + * (lambda_list[2] - lambda_list[3]) + ) + denominator4 = ( + (lambda_list[3] - lambda_list[0]) + * (lambda_list[3] - lambda_list[1]) + * (lambda_list[3] - lambda_list[2]) + ) + return [ + [ + 1 / denominator1, + (-lambda_list[1] - lambda_list[2] - lambda_list[3]) / denominator1, + ( + lambda_list[1] * lambda_list[2] + + lambda_list[1] * lambda_list[3] + + lambda_list[2] * lambda_list[3] + ) + / denominator1, + (-lambda_list[1] * lambda_list[2] * lambda_list[3]) / denominator1, + ], + [ + 1 / denominator2, + (-lambda_list[0] - lambda_list[2] - lambda_list[3]) / denominator2, + ( + lambda_list[0] * lambda_list[2] + + lambda_list[0] * lambda_list[3] + + lambda_list[2] * lambda_list[3] + ) + / denominator2, + (-lambda_list[0] * lambda_list[2] * lambda_list[3]) / denominator2, + ], + [ + 1 / denominator3, + (-lambda_list[0] - lambda_list[1] - lambda_list[3]) / denominator3, + ( + lambda_list[0] * lambda_list[1] + + lambda_list[0] * lambda_list[3] + + lambda_list[1] * lambda_list[3] + ) + / denominator3, + (-lambda_list[0] * lambda_list[1] * lambda_list[3]) / denominator3, + ], + [ + 1 / denominator4, + (-lambda_list[0] - lambda_list[1] - lambda_list[2]) / denominator4, + ( + lambda_list[0] * lambda_list[1] + + lambda_list[0] * lambda_list[2] + + lambda_list[1] * lambda_list[2] + ) + / denominator4, + (-lambda_list[0] * lambda_list[1] * lambda_list[2]) / denominator4, + ], + ] + + def get_coefficients_fn(self, order, interval_start, interval_end, lambda_list, tau): + assert order in [1, 2, 3, 4] + assert order == len(lambda_list), "the length of lambda list must be equal to the order" + coefficients = [] + lagrange_coefficient = self.lagrange_polynomial_coefficient(order - 1, lambda_list) + for i in range(order): + coefficient = 0 + for j in range(order): + if self.predict_x0: + coefficient += lagrange_coefficient[i][j] * self.get_coefficients_exponential_positive( + order - 1 - j, interval_start, interval_end, tau + ) + else: + coefficient += lagrange_coefficient[i][j] * self.get_coefficients_exponential_negative( + order - 1 - j, interval_start, interval_end + ) + coefficients.append(coefficient) + assert len(coefficients) == order, "the length of coefficients does not match the order" + return coefficients + + def stochastic_adams_bashforth_update( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor, + noise: torch.Tensor, + order: int, + tau: torch.Tensor, + **kwargs, + ) -> torch.Tensor: + """ + One step for the SA-Predictor. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model at the current timestep. + prev_timestep (`int`): + The previous discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + order (`int`): + The order of SA-Predictor at this timestep. + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + prev_timestep = args[0] if len(args) > 0 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 1: + sample = args[1] + else: + raise ValueError("missing `sample` as a required keyword argument") + if noise is None: + if len(args) > 2: + noise = args[2] + else: + raise ValueError("missing `noise` as a required keyword argument") + if order is None: + if len(args) > 3: + order = args[3] + else: + raise ValueError("missing `order` as a required keyword argument") + if tau is None: + if len(args) > 4: + tau = args[4] + else: + raise ValueError("missing `tau` as a required keyword argument") + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + model_output_list = self.model_outputs + sigma_t, sigma_s0 = ( + self.sigmas[self.step_index + 1], + self.sigmas[self.step_index], + ) + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + + gradient_part = torch.zeros_like(sample) + h = lambda_t - lambda_s0 + lambda_list = [] + + for i in range(order): + si = self.step_index - i + alpha_si, sigma_si = self._sigma_to_alpha_sigma_t(self.sigmas[si]) + lambda_si = torch.log(alpha_si) - torch.log(sigma_si) + lambda_list.append(lambda_si) + + gradient_coefficients = self.get_coefficients_fn(order, lambda_s0, lambda_t, lambda_list, tau) + + x = sample + + if self.predict_x0: + if ( + order == 2 + ): ## if order = 2 we do a modification that does not influence the convergence order similar to unipc. Note: This is used only for few steps sampling. + # The added term is O(h^3). Empirically we find it will slightly improve the image quality. + # ODE case + # gradient_coefficients[0] += 1.0 * torch.exp(lambda_t) * (h ** 2 / 2 - (h - 1 + torch.exp(-h))) / (ns.marginal_lambda(t_prev_list[-1]) - ns.marginal_lambda(t_prev_list[-2])) + # gradient_coefficients[1] -= 1.0 * torch.exp(lambda_t) * (h ** 2 / 2 - (h - 1 + torch.exp(-h))) / (ns.marginal_lambda(t_prev_list[-1]) - ns.marginal_lambda(t_prev_list[-2])) + temp_sigma = self.sigmas[self.step_index - 1] + temp_alpha_s, temp_sigma_s = self._sigma_to_alpha_sigma_t(temp_sigma) + temp_lambda_s = torch.log(temp_alpha_s) - torch.log(temp_sigma_s) + gradient_coefficients[0] += ( + 1.0 + * torch.exp((1 + tau**2) * lambda_t) + * (h**2 / 2 - (h * (1 + tau**2) - 1 + torch.exp((1 + tau**2) * (-h))) / ((1 + tau**2) ** 2)) + / (lambda_s0 - temp_lambda_s) + ) + gradient_coefficients[1] -= ( + 1.0 + * torch.exp((1 + tau**2) * lambda_t) + * (h**2 / 2 - (h * (1 + tau**2) - 1 + torch.exp((1 + tau**2) * (-h))) / ((1 + tau**2) ** 2)) + / (lambda_s0 - temp_lambda_s) + ) + + for i in range(order): + if self.predict_x0: + gradient_part += ( + (1 + tau**2) + * sigma_t + * torch.exp(-(tau**2) * lambda_t) + * gradient_coefficients[i] + * model_output_list[-(i + 1)] + ) + else: + gradient_part += -(1 + tau**2) * alpha_t * gradient_coefficients[i] * model_output_list[-(i + 1)] + + if self.predict_x0: + noise_part = sigma_t * torch.sqrt(1 - torch.exp(-2 * tau**2 * h)) * noise + else: + noise_part = tau * sigma_t * torch.sqrt(torch.exp(2 * h) - 1) * noise + + if self.predict_x0: + x_t = torch.exp(-(tau**2) * h) * (sigma_t / sigma_s0) * x + gradient_part + noise_part + else: + x_t = (alpha_t / alpha_s0) * x + gradient_part + noise_part + + x_t = x_t.to(x.dtype) + return x_t + + def stochastic_adams_moulton_update( + self, + this_model_output: torch.Tensor, + *args, + last_sample: torch.Tensor, + last_noise: torch.Tensor, + this_sample: torch.Tensor, + order: int, + tau: torch.Tensor, + **kwargs, + ) -> torch.Tensor: + """ + One step for the SA-Corrector. + + Args: + this_model_output (`torch.Tensor`): + The model outputs at `x_t`. + this_timestep (`int`): + The current timestep `t`. + last_sample (`torch.Tensor`): + The generated sample before the last predictor `x_{t-1}`. + this_sample (`torch.Tensor`): + The generated sample after the last predictor `x_{t}`. + order (`int`): + The order of SA-Corrector at this step. + + Returns: + `torch.Tensor`: + The corrected sample tensor at the current timestep. + """ + + this_timestep = args[0] if len(args) > 0 else kwargs.pop("this_timestep", None) + if last_sample is None: + if len(args) > 1: + last_sample = args[1] + else: + raise ValueError("missing `last_sample` as a required keyword argument") + if last_noise is None: + if len(args) > 2: + last_noise = args[2] + else: + raise ValueError("missing `last_noise` as a required keyword argument") + if this_sample is None: + if len(args) > 3: + this_sample = args[3] + else: + raise ValueError("missing `this_sample` as a required keyword argument") + if order is None: + if len(args) > 4: + order = args[4] + else: + raise ValueError("missing `order` as a required keyword argument") + if tau is None: + if len(args) > 5: + tau = args[5] + else: + raise ValueError("missing `tau` as a required keyword argument") + if this_timestep is not None: + deprecate( + "this_timestep", + "1.0.0", + "Passing `this_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + model_output_list = self.model_outputs + sigma_t, sigma_s0 = ( + self.sigmas[self.step_index], + self.sigmas[self.step_index - 1], + ) + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + gradient_part = torch.zeros_like(this_sample) + h = lambda_t - lambda_s0 + lambda_list = [] + for i in range(order): + si = self.step_index - i + alpha_si, sigma_si = self._sigma_to_alpha_sigma_t(self.sigmas[si]) + lambda_si = torch.log(alpha_si) - torch.log(sigma_si) + lambda_list.append(lambda_si) + + model_prev_list = model_output_list + [this_model_output] + + gradient_coefficients = self.get_coefficients_fn(order, lambda_s0, lambda_t, lambda_list, tau) + + x = last_sample + + if self.predict_x0: + if ( + order == 2 + ): ## if order = 2 we do a modification that does not influence the convergence order similar to UniPC. Note: This is used only for few steps sampling. + # The added term is O(h^3). Empirically we find it will slightly improve the image quality. + # ODE case + # gradient_coefficients[0] += 1.0 * torch.exp(lambda_t) * (h / 2 - (h - 1 + torch.exp(-h)) / h) + # gradient_coefficients[1] -= 1.0 * torch.exp(lambda_t) * (h / 2 - (h - 1 + torch.exp(-h)) / h) + gradient_coefficients[0] += ( + 1.0 + * torch.exp((1 + tau**2) * lambda_t) + * (h / 2 - (h * (1 + tau**2) - 1 + torch.exp((1 + tau**2) * (-h))) / ((1 + tau**2) ** 2 * h)) + ) + gradient_coefficients[1] -= ( + 1.0 + * torch.exp((1 + tau**2) * lambda_t) + * (h / 2 - (h * (1 + tau**2) - 1 + torch.exp((1 + tau**2) * (-h))) / ((1 + tau**2) ** 2 * h)) + ) + + for i in range(order): + if self.predict_x0: + gradient_part += ( + (1 + tau**2) + * sigma_t + * torch.exp(-(tau**2) * lambda_t) + * gradient_coefficients[i] + * model_prev_list[-(i + 1)] + ) + else: + gradient_part += -(1 + tau**2) * alpha_t * gradient_coefficients[i] * model_prev_list[-(i + 1)] + + if self.predict_x0: + noise_part = sigma_t * torch.sqrt(1 - torch.exp(-2 * tau**2 * h)) * last_noise + else: + noise_part = tau * sigma_t * torch.sqrt(torch.exp(2 * h) - 1) * last_noise + + if self.predict_x0: + x_t = torch.exp(-(tau**2) * h) * (sigma_t / sigma_s0) * x + gradient_part + noise_part + else: + x_t = (alpha_t / alpha_s0) * x + gradient_part + noise_part + + x_t = x_t.to(x.dtype) + return x_t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.index_for_timestep + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + index_candidates = (schedule_timesteps == timestep).nonzero() + + if len(index_candidates) == 0: + step_index = len(self.timesteps) - 1 + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + + return step_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._init_step_index + def _init_step_index(self, timestep): + """ + Initialize the step_index counter for the scheduler. + """ + + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + generator=None, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the SA-Solver. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + use_corrector = self.step_index > 0 and self.last_sample is not None + + model_output_convert = self.convert_model_output(model_output, sample=sample) + + if use_corrector: + current_tau = self.tau_func(self.timestep_list[-1]) + sample = self.stochastic_adams_moulton_update( + this_model_output=model_output_convert, + last_sample=self.last_sample, + last_noise=self.last_noise, + this_sample=sample, + order=self.this_corrector_order, + tau=current_tau, + ) + + for i in range(max(self.config.predictor_order, self.config.corrector_order - 1) - 1): + self.model_outputs[i] = self.model_outputs[i + 1] + self.timestep_list[i] = self.timestep_list[i + 1] + + self.model_outputs[-1] = model_output_convert + self.timestep_list[-1] = timestep + + noise = randn_tensor( + model_output.shape, + generator=generator, + device=model_output.device, + dtype=model_output.dtype, + ) + + if self.config.lower_order_final: + this_predictor_order = min(self.config.predictor_order, len(self.timesteps) - self.step_index) + this_corrector_order = min(self.config.corrector_order, len(self.timesteps) - self.step_index + 1) + else: + this_predictor_order = self.config.predictor_order + this_corrector_order = self.config.corrector_order + + self.this_predictor_order = min(this_predictor_order, self.lower_order_nums + 1) # warmup for multistep + self.this_corrector_order = min(this_corrector_order, self.lower_order_nums + 2) # warmup for multistep + assert self.this_predictor_order > 0 + assert self.this_corrector_order > 0 + + self.last_sample = sample + self.last_noise = noise + + current_tau = self.tau_func(self.timestep_list[-1]) + prev_sample = self.stochastic_adams_bashforth_update( + model_output=model_output_convert, + sample=sample, + noise=noise, + order=self.this_predictor_order, + tau=current_tau, + ) + + if self.lower_order_nums < max(self.config.predictor_order, self.config.corrector_order - 1): + self.lower_order_nums += 1 + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def scale_model_input(self, sample: torch.Tensor, *args, **kwargs) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_scm.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_scm.py new file mode 100644 index 0000000000000000000000000000000000000000..7b01d886299c9ba42059de6cc3970976b0afeab3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_scm.py @@ -0,0 +1,287 @@ +# # Copyright 2025 Sana-Sprint Authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..schedulers.scheduling_utils import SchedulerMixin +from ..utils import BaseOutput, logging +from ..utils.torch_utils import randn_tensor + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->SCM +class SCMSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +class SCMScheduler(SchedulerMixin, ConfigMixin): + """ + `SCMScheduler` extends the denoising procedure introduced in denoising diffusion probabilistic models (DDPMs) with + non-Markovian guidance. This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass + documentation for the generic methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + prediction_type (`str`, defaults to `trigflow`): + Prediction type of the scheduler function. Currently only supports "trigflow". + sigma_data (`float`, defaults to 0.5): + The standard deviation of the noise added during multi-step inference. + """ + + # _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + prediction_type: str = "trigflow", + sigma_data: float = 0.5, + ): + """ + Initialize the SCM scheduler. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + prediction_type (`str`, defaults to `trigflow`): + Prediction type of the scheduler function. Currently only supports "trigflow". + sigma_data (`float`, defaults to 0.5): + The standard deviation of the noise added during multi-step inference. + """ + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy().astype(np.int64)) + + self._step_index = None + self._begin_index = None + + @property + def step_index(self): + return self._step_index + + @property + def begin_index(self): + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_timesteps( + self, + num_inference_steps: int, + timesteps: torch.Tensor = None, + device: Union[str, torch.device] = None, + max_timesteps: float = 1.57080, + intermediate_timesteps: float = 1.3, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + timesteps (`torch.Tensor`, *optional*): + Custom timesteps to use for the denoising process. + max_timesteps (`float`, defaults to 1.57080): + The maximum timestep value used in the SCM scheduler. + intermediate_timesteps (`float`, *optional*, defaults to 1.3): + The intermediate timestep value used in SCM scheduler (only used when num_inference_steps=2). + """ + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + if timesteps is not None and len(timesteps) != num_inference_steps + 1: + raise ValueError("If providing custom timesteps, `timesteps` must be of length `num_inference_steps + 1`.") + + if timesteps is not None and max_timesteps is not None: + raise ValueError("If providing custom timesteps, `max_timesteps` should not be provided.") + + if timesteps is None and max_timesteps is None: + raise ValueError("Should provide either `timesteps` or `max_timesteps`.") + + if intermediate_timesteps is not None and num_inference_steps != 2: + raise ValueError("Intermediate timesteps for SCM is not supported when num_inference_steps != 2.") + + self.num_inference_steps = num_inference_steps + + if timesteps is not None: + if isinstance(timesteps, list): + self.timesteps = torch.tensor(timesteps, device=device).float() + elif isinstance(timesteps, torch.Tensor): + self.timesteps = timesteps.to(device).float() + else: + raise ValueError(f"Unsupported timesteps type: {type(timesteps)}") + elif intermediate_timesteps is not None: + self.timesteps = torch.tensor([max_timesteps, intermediate_timesteps, 0], device=device).float() + else: + # max_timesteps=arctan(80/0.5)=1.56454 is the default from sCM paper, we choose a different value here + self.timesteps = torch.linspace(max_timesteps, 0, num_inference_steps + 1, device=device).float() + + self._step_index = None + self._begin_index = None + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + def step( + self, + model_output: torch.FloatTensor, + timestep: float, + sample: torch.FloatTensor, + generator: torch.Generator = None, + return_dict: bool = True, + ) -> Union[SCMSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.FloatTensor`): + The direct output from learned diffusion model. + timestep (`float`): + The current discrete timestep in the diffusion chain. + sample (`torch.FloatTensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_scm.SCMSchedulerOutput`] or `tuple`. + Returns: + [`~schedulers.scheduling_utils.SCMSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_scm.SCMSchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + # 2. compute alphas, betas + t = self.timesteps[self.step_index + 1] + s = self.timesteps[self.step_index] + + # 4. Different Parameterization: + parameterization = self.config.prediction_type + + if parameterization == "trigflow": + pred_x0 = torch.cos(s) * sample - torch.sin(s) * model_output + else: + raise ValueError(f"Unsupported parameterization: {parameterization}") + + # 5. Sample z ~ N(0, I), For MultiStep Inference + # Noise is not used for one-step sampling. + if len(self.timesteps) > 1: + noise = ( + randn_tensor(model_output.shape, device=model_output.device, generator=generator) + * self.config.sigma_data + ) + prev_sample = torch.cos(t) * pred_x0 + torch.sin(t) * noise + else: + prev_sample = pred_x0 + + self._step_index += 1 + + if not return_dict: + return (prev_sample, pred_x0) + + return SCMSchedulerOutput(prev_sample=prev_sample, pred_original_sample=pred_x0) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sde_ve.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sde_ve.py new file mode 100644 index 0000000000000000000000000000000000000000..1bfc08cce5e97c3efcacbb4f18744cac441ff6fa --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sde_ve.py @@ -0,0 +1,301 @@ +# Copyright 2025 Google Brain and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/yang-song/score_sde_pytorch + +import math +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin, SchedulerOutput + + +@dataclass +class SdeVeOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + prev_sample_mean (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Mean averaged `prev_sample` over previous timesteps. + """ + + prev_sample: torch.Tensor + prev_sample_mean: torch.Tensor + + +class ScoreSdeVeScheduler(SchedulerMixin, ConfigMixin): + """ + `ScoreSdeVeScheduler` is a variance exploding stochastic differential equation (SDE) scheduler. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + snr (`float`, defaults to 0.15): + A coefficient weighting the step from the `model_output` sample (from the network) to the random noise. + sigma_min (`float`, defaults to 0.01): + The initial noise scale for the sigma sequence in the sampling procedure. The minimum sigma should mirror + the distribution of the data. + sigma_max (`float`, defaults to 1348.0): + The maximum value used for the range of continuous timesteps passed into the model. + sampling_eps (`float`, defaults to 1e-5): + The end value of sampling where timesteps decrease progressively from 1 to epsilon. + correct_steps (`int`, defaults to 1): + The number of correction steps performed on a produced sample. + """ + + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 2000, + snr: float = 0.15, + sigma_min: float = 0.01, + sigma_max: float = 1348.0, + sampling_eps: float = 1e-5, + correct_steps: int = 1, + ): + # standard deviation of the initial noise distribution + self.init_noise_sigma = sigma_max + + # setable values + self.timesteps = None + + self.set_sigmas(num_train_timesteps, sigma_min, sigma_max, sampling_eps) + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + def set_timesteps( + self, num_inference_steps: int, sampling_eps: float = None, device: Union[str, torch.device] = None + ): + """ + Sets the continuous timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + sampling_eps (`float`, *optional*): + The final timestep value (overrides value given during scheduler instantiation). + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + + """ + sampling_eps = sampling_eps if sampling_eps is not None else self.config.sampling_eps + + self.timesteps = torch.linspace(1, sampling_eps, num_inference_steps, device=device) + + def set_sigmas( + self, num_inference_steps: int, sigma_min: float = None, sigma_max: float = None, sampling_eps: float = None + ): + """ + Sets the noise scales used for the diffusion chain (to be run before inference). The sigmas control the weight + of the `drift` and `diffusion` components of the sample update. + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + sigma_min (`float`, optional): + The initial noise scale value (overrides value given during scheduler instantiation). + sigma_max (`float`, optional): + The final noise scale value (overrides value given during scheduler instantiation). + sampling_eps (`float`, optional): + The final timestep value (overrides value given during scheduler instantiation). + + """ + sigma_min = sigma_min if sigma_min is not None else self.config.sigma_min + sigma_max = sigma_max if sigma_max is not None else self.config.sigma_max + sampling_eps = sampling_eps if sampling_eps is not None else self.config.sampling_eps + if self.timesteps is None: + self.set_timesteps(num_inference_steps, sampling_eps) + + self.sigmas = sigma_min * (sigma_max / sigma_min) ** (self.timesteps / sampling_eps) + self.discrete_sigmas = torch.exp(torch.linspace(math.log(sigma_min), math.log(sigma_max), num_inference_steps)) + self.sigmas = torch.tensor([sigma_min * (sigma_max / sigma_min) ** t for t in self.timesteps]) + + def get_adjacent_sigma(self, timesteps, t): + return torch.where( + timesteps == 0, + torch.zeros_like(t.to(timesteps.device)), + self.discrete_sigmas[timesteps - 1].to(timesteps.device), + ) + + def step_pred( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[SdeVeOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_sde_ve.SdeVeOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_sde_ve.SdeVeOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_sde_ve.SdeVeOutput`] is returned, otherwise a tuple + is returned where the first element is the sample tensor. + + """ + if self.timesteps is None: + raise ValueError( + "`self.timesteps` is not set, you need to run 'set_timesteps' after creating the scheduler" + ) + + timestep = timestep * torch.ones( + sample.shape[0], device=sample.device + ) # torch.repeat_interleave(timestep, sample.shape[0]) + timesteps = (timestep * (len(self.timesteps) - 1)).long() + + # mps requires indices to be in the same device, so we use cpu as is the default with cuda + timesteps = timesteps.to(self.discrete_sigmas.device) + + sigma = self.discrete_sigmas[timesteps].to(sample.device) + adjacent_sigma = self.get_adjacent_sigma(timesteps, timestep).to(sample.device) + drift = torch.zeros_like(sample) + diffusion = (sigma**2 - adjacent_sigma**2) ** 0.5 + + # equation 6 in the paper: the model_output modeled by the network is grad_x log pt(x) + # also equation 47 shows the analog from SDE models to ancestral sampling methods + diffusion = diffusion.flatten() + while len(diffusion.shape) < len(sample.shape): + diffusion = diffusion.unsqueeze(-1) + drift = drift - diffusion**2 * model_output + + # equation 6: sample noise for the diffusion term of + noise = randn_tensor( + sample.shape, layout=sample.layout, generator=generator, device=sample.device, dtype=sample.dtype + ) + prev_sample_mean = sample - drift # subtract because `dt` is a small negative timestep + # TODO is the variable diffusion the correct scaling term for the noise? + prev_sample = prev_sample_mean + diffusion * noise # add impact of diffusion field g + + if not return_dict: + return (prev_sample, prev_sample_mean) + + return SdeVeOutput(prev_sample=prev_sample, prev_sample_mean=prev_sample_mean) + + def step_correct( + self, + model_output: torch.Tensor, + sample: torch.Tensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Correct the predicted sample based on the `model_output` of the network. This is often run repeatedly after + making the prediction for the previous timestep. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_sde_ve.SdeVeOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_sde_ve.SdeVeOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_sde_ve.SdeVeOutput`] is returned, otherwise a tuple + is returned where the first element is the sample tensor. + + """ + if self.timesteps is None: + raise ValueError( + "`self.timesteps` is not set, you need to run 'set_timesteps' after creating the scheduler" + ) + + # For small batch sizes, the paper "suggest replacing norm(z) with sqrt(d), where d is the dim. of z" + # sample noise for correction + noise = randn_tensor(sample.shape, layout=sample.layout, generator=generator).to(sample.device) + + # compute step size from the model_output, the noise, and the snr + grad_norm = torch.norm(model_output.reshape(model_output.shape[0], -1), dim=-1).mean() + noise_norm = torch.norm(noise.reshape(noise.shape[0], -1), dim=-1).mean() + step_size = (self.config.snr * noise_norm / grad_norm) ** 2 * 2 + step_size = step_size * torch.ones(sample.shape[0]).to(sample.device) + # self.repeat_scalar(step_size, sample.shape[0]) + + # compute corrected sample: model_output term and noise term + step_size = step_size.flatten() + while len(step_size.shape) < len(sample.shape): + step_size = step_size.unsqueeze(-1) + prev_sample_mean = sample + step_size * model_output + prev_sample = prev_sample_mean + ((step_size * 2) ** 0.5) * noise + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.Tensor, + ) -> torch.Tensor: + # Make sure sigmas and timesteps have the same device and dtype as original_samples + timesteps = timesteps.to(original_samples.device) + sigmas = self.discrete_sigmas.to(original_samples.device)[timesteps] + noise = ( + noise * sigmas[:, None, None, None] + if noise is not None + else torch.randn_like(original_samples) * sigmas[:, None, None, None] + ) + noisy_samples = noise + original_samples + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sde_ve_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sde_ve_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..09cd081462b3fa5c5d005e3737735e9f34b4a5ac --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_sde_ve_flax.py @@ -0,0 +1,280 @@ +# Copyright 2025 Google Brain and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This file is strongly influenced by https://github.com/yang-song/score_sde_pytorch + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import flax +import jax +import jax.numpy as jnp +from jax import random + +from ..configuration_utils import ConfigMixin, register_to_config +from .scheduling_utils_flax import FlaxSchedulerMixin, FlaxSchedulerOutput, broadcast_to_shape_from_left + + +@flax.struct.dataclass +class ScoreSdeVeSchedulerState: + # setable values + timesteps: Optional[jnp.ndarray] = None + discrete_sigmas: Optional[jnp.ndarray] = None + sigmas: Optional[jnp.ndarray] = None + + @classmethod + def create(cls): + return cls() + + +@dataclass +class FlaxSdeVeOutput(FlaxSchedulerOutput): + """ + Output class for the ScoreSdeVeScheduler's step function output. + + Args: + state (`ScoreSdeVeSchedulerState`): + prev_sample (`jnp.ndarray` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample (x_{t-1}) of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + prev_sample_mean (`jnp.ndarray` of shape `(batch_size, num_channels, height, width)` for images): + Mean averaged `prev_sample`. Same as `prev_sample`, only mean-averaged over previous timesteps. + """ + + state: ScoreSdeVeSchedulerState + prev_sample: jnp.ndarray + prev_sample_mean: Optional[jnp.ndarray] = None + + +class FlaxScoreSdeVeScheduler(FlaxSchedulerMixin, ConfigMixin): + """ + The variance exploding stochastic differential equation (SDE) scheduler. + + For more information, see the original paper: https://huggingface.co/papers/2011.13456 + + [`~ConfigMixin`] takes care of storing all config attributes that are passed in the scheduler's `__init__` + function, such as `num_train_timesteps`. They can be accessed via `scheduler.config.num_train_timesteps`. + [`SchedulerMixin`] provides general loading and saving functionality via the [`SchedulerMixin.save_pretrained`] and + [`~SchedulerMixin.from_pretrained`] functions. + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + snr (`float`): + coefficient weighting the step from the model_output sample (from the network) to the random noise. + sigma_min (`float`): + initial noise scale for sigma sequence in sampling procedure. The minimum sigma should mirror the + distribution of the data. + sigma_max (`float`): maximum value used for the range of continuous timesteps passed into the model. + sampling_eps (`float`): the end value of sampling, where timesteps decrease progressively from 1 to + epsilon. + correct_steps (`int`): number of correction steps performed on a produced sample. + """ + + @property + def has_state(self): + return True + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 2000, + snr: float = 0.15, + sigma_min: float = 0.01, + sigma_max: float = 1348.0, + sampling_eps: float = 1e-5, + correct_steps: int = 1, + ): + pass + + def create_state(self): + state = ScoreSdeVeSchedulerState.create() + return self.set_sigmas( + state, + self.config.num_train_timesteps, + self.config.sigma_min, + self.config.sigma_max, + self.config.sampling_eps, + ) + + def set_timesteps( + self, state: ScoreSdeVeSchedulerState, num_inference_steps: int, shape: Tuple = (), sampling_eps: float = None + ) -> ScoreSdeVeSchedulerState: + """ + Sets the continuous timesteps used for the diffusion chain. Supporting function to be run before inference. + + Args: + state (`ScoreSdeVeSchedulerState`): the `FlaxScoreSdeVeScheduler` state data class instance. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + sampling_eps (`float`, optional): + final timestep value (overrides value given at Scheduler instantiation). + + """ + sampling_eps = sampling_eps if sampling_eps is not None else self.config.sampling_eps + + timesteps = jnp.linspace(1, sampling_eps, num_inference_steps) + return state.replace(timesteps=timesteps) + + def set_sigmas( + self, + state: ScoreSdeVeSchedulerState, + num_inference_steps: int, + sigma_min: float = None, + sigma_max: float = None, + sampling_eps: float = None, + ) -> ScoreSdeVeSchedulerState: + """ + Sets the noise scales used for the diffusion chain. Supporting function to be run before inference. + + The sigmas control the weight of the `drift` and `diffusion` components of sample update. + + Args: + state (`ScoreSdeVeSchedulerState`): the `FlaxScoreSdeVeScheduler` state data class instance. + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + sigma_min (`float`, optional): + initial noise scale value (overrides value given at Scheduler instantiation). + sigma_max (`float`, optional): + final noise scale value (overrides value given at Scheduler instantiation). + sampling_eps (`float`, optional): + final timestep value (overrides value given at Scheduler instantiation). + """ + sigma_min = sigma_min if sigma_min is not None else self.config.sigma_min + sigma_max = sigma_max if sigma_max is not None else self.config.sigma_max + sampling_eps = sampling_eps if sampling_eps is not None else self.config.sampling_eps + if state.timesteps is None: + state = self.set_timesteps(state, num_inference_steps, sampling_eps) + + discrete_sigmas = jnp.exp(jnp.linspace(jnp.log(sigma_min), jnp.log(sigma_max), num_inference_steps)) + sigmas = jnp.array([sigma_min * (sigma_max / sigma_min) ** t for t in state.timesteps]) + + return state.replace(discrete_sigmas=discrete_sigmas, sigmas=sigmas) + + def get_adjacent_sigma(self, state, timesteps, t): + return jnp.where(timesteps == 0, jnp.zeros_like(t), state.discrete_sigmas[timesteps - 1]) + + def step_pred( + self, + state: ScoreSdeVeSchedulerState, + model_output: jnp.ndarray, + timestep: int, + sample: jnp.ndarray, + key: jax.Array, + return_dict: bool = True, + ) -> Union[FlaxSdeVeOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + state (`ScoreSdeVeSchedulerState`): the `FlaxScoreSdeVeScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + generator: random number generator. + return_dict (`bool`): option for returning tuple rather than FlaxSdeVeOutput class + + Returns: + [`FlaxSdeVeOutput`] or `tuple`: [`FlaxSdeVeOutput`] if `return_dict` is True, otherwise a `tuple`. When + returning a tuple, the first element is the sample tensor. + + """ + if state.timesteps is None: + raise ValueError( + "`state.timesteps` is not set, you need to run 'set_timesteps' after creating the scheduler" + ) + + timestep = timestep * jnp.ones( + sample.shape[0], + ) + timesteps = (timestep * (len(state.timesteps) - 1)).long() + + sigma = state.discrete_sigmas[timesteps] + adjacent_sigma = self.get_adjacent_sigma(state, timesteps, timestep) + drift = jnp.zeros_like(sample) + diffusion = (sigma**2 - adjacent_sigma**2) ** 0.5 + + # equation 6 in the paper: the model_output modeled by the network is grad_x log pt(x) + # also equation 47 shows the analog from SDE models to ancestral sampling methods + diffusion = diffusion.flatten() + diffusion = broadcast_to_shape_from_left(diffusion, sample.shape) + drift = drift - diffusion**2 * model_output + + # equation 6: sample noise for the diffusion term of + key = random.split(key, num=1) + noise = random.normal(key=key, shape=sample.shape) + prev_sample_mean = sample - drift # subtract because `dt` is a small negative timestep + # TODO is the variable diffusion the correct scaling term for the noise? + prev_sample = prev_sample_mean + diffusion * noise # add impact of diffusion field g + + if not return_dict: + return (prev_sample, prev_sample_mean, state) + + return FlaxSdeVeOutput(prev_sample=prev_sample, prev_sample_mean=prev_sample_mean, state=state) + + def step_correct( + self, + state: ScoreSdeVeSchedulerState, + model_output: jnp.ndarray, + sample: jnp.ndarray, + key: jax.Array, + return_dict: bool = True, + ) -> Union[FlaxSdeVeOutput, Tuple]: + """ + Correct the predicted sample based on the output model_output of the network. This is often run repeatedly + after making the prediction for the previous timestep. + + Args: + state (`ScoreSdeVeSchedulerState`): the `FlaxScoreSdeVeScheduler` state data class instance. + model_output (`jnp.ndarray`): direct output from learned diffusion model. + sample (`jnp.ndarray`): + current instance of sample being created by diffusion process. + generator: random number generator. + return_dict (`bool`): option for returning tuple rather than FlaxSdeVeOutput class + + Returns: + [`FlaxSdeVeOutput`] or `tuple`: [`FlaxSdeVeOutput`] if `return_dict` is True, otherwise a `tuple`. When + returning a tuple, the first element is the sample tensor. + + """ + if state.timesteps is None: + raise ValueError( + "`state.timesteps` is not set, you need to run 'set_timesteps' after creating the scheduler" + ) + + # For small batch sizes, the paper "suggest replacing norm(z) with sqrt(d), where d is the dim. of z" + # sample noise for correction + key = random.split(key, num=1) + noise = random.normal(key=key, shape=sample.shape) + + # compute step size from the model_output, the noise, and the snr + grad_norm = jnp.linalg.norm(model_output) + noise_norm = jnp.linalg.norm(noise) + step_size = (self.config.snr * noise_norm / grad_norm) ** 2 * 2 + step_size = step_size * jnp.ones(sample.shape[0]) + + # compute corrected sample: model_output term and noise term + step_size = step_size.flatten() + step_size = broadcast_to_shape_from_left(step_size, sample.shape) + prev_sample_mean = sample + step_size * model_output + prev_sample = prev_sample_mean + ((step_size * 2) ** 0.5) * noise + + if not return_dict: + return (prev_sample, state) + + return FlaxSdeVeOutput(prev_sample=prev_sample, state=state) + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_tcd.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_tcd.py new file mode 100644 index 0000000000000000000000000000000000000000..37b41c87f8a2572a293a8abd5cb6868375472385 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_tcd.py @@ -0,0 +1,784 @@ +# Copyright 2025 Stanford University Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: This code is strongly influenced by https://github.com/pesser/pytorch_diffusion +# and https://github.com/hojonathanho/diffusion + +import math +from dataclasses import dataclass +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..schedulers.scheduling_utils import SchedulerMixin +from ..utils import BaseOutput, logging +from ..utils.torch_utils import randn_tensor + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + + +@dataclass +class TCDSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_noised_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted noised sample `(x_{s})` based on the model output from the current timestep. + """ + + prev_sample: torch.Tensor + pred_noised_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas: torch.Tensor) -> torch.Tensor: + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class TCDScheduler(SchedulerMixin, ConfigMixin): + """ + `TCDScheduler` incorporates the `Strategic Stochastic Sampling` introduced by the paper `Trajectory Consistency + Distillation`, extending the original Multistep Consistency Sampling to enable unrestricted trajectory traversal. + + This code is based on the official repo of TCD(https://github.com/jabir-zheng/TCD). + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. [`~ConfigMixin`] takes care of storing all config + attributes that are passed in the scheduler's `__init__` function, such as `num_train_timesteps`. They can be + accessed via `scheduler.config.num_train_timesteps`. [`SchedulerMixin`] provides general loading and saving + functionality via the [`SchedulerMixin.save_pretrained`] and [`~SchedulerMixin.from_pretrained`] functions. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + original_inference_steps (`int`, *optional*, defaults to 50): + The default number of inference steps used to generate a linearly-spaced timestep schedule, from which we + will ultimately take `num_inference_steps` evenly spaced timesteps to form the final timestep schedule. + clip_sample (`bool`, defaults to `True`): + Clip the predicted sample for numerical stability. + clip_sample_range (`float`, defaults to 1.0): + The maximum magnitude for sample clipping. Valid only when `clip_sample=True`. + set_alpha_to_one (`bool`, defaults to `True`): + Each diffusion step uses the alphas product value at that step and at the previous one. For the final step + there is no previous alpha. When this option is `True` the previous alpha product is fixed to `1`, + otherwise it uses the alpha value at step 0. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True`. + timestep_spacing (`str`, defaults to `"leading"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + timestep_scaling (`float`, defaults to 10.0): + The factor the timesteps will be multiplied by when calculating the consistency model boundary conditions + `c_skip` and `c_out`. Increasing this will decrease the approximation error (although the approximation + error at the default of `10.0` is already pretty small). + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.00085, + beta_end: float = 0.012, + beta_schedule: str = "scaled_linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + original_inference_steps: int = 50, + clip_sample: bool = False, + clip_sample_range: float = 1.0, + set_alpha_to_one: bool = True, + steps_offset: int = 0, + prediction_type: str = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + timestep_spacing: str = "leading", + timestep_scaling: float = 10.0, + rescale_betas_zero_snr: bool = False, + ): + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + # Rescale for zero SNR + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + # At every step in ddim, we are looking into the previous alphas_cumprod + # For the final step, there is no previous alphas_cumprod because we are already at 0 + # `set_alpha_to_one` decides whether we set this parameter simply to one or + # whether we use the final alpha of the "non-previous" one. + self.final_alpha_cumprod = torch.tensor(1.0) if set_alpha_to_one else self.alphas_cumprod[0] + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy().astype(np.int64)) + self.custom_timesteps = False + + self._step_index = None + self._begin_index = None + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler.index_for_timestep + def index_for_timestep( + self, timestep: Union[float, torch.Tensor], schedule_timesteps: Optional[torch.Tensor] = None + ) -> int: + """ + Find the index of a given timestep in the timestep schedule. + + Args: + timestep (`float` or `torch.Tensor`): + The timestep value to find in the schedule. + schedule_timesteps (`torch.Tensor`, *optional*): + The timestep schedule to search in. If `None`, uses `self.timesteps`. + + Returns: + `int`: + The index of the timestep in the schedule. For the very first step, returns the second index if + multiple matches exist to avoid skipping a sigma when starting mid-schedule (e.g., for image-to-image). + """ + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + indices = (schedule_timesteps == timestep).nonzero() + + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + pos = 1 if len(indices) > 1 else 0 + + return indices[pos].item() + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._init_step_index + def _init_step_index(self, timestep: Union[float, torch.Tensor]) -> None: + """ + Initialize the step index for the scheduler based on the given timestep. + + Args: + timestep (`float` or `torch.Tensor`): + The current timestep to initialize the step index from. + """ + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + @property + def step_index(self): + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + timestep (`int`, *optional*): + The current timestep in the diffusion chain. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + # Copied from diffusers.schedulers.scheduling_ddim.DDIMScheduler._get_variance + def _get_variance(self, timestep, prev_timestep): + """ + Computes the variance of the noise added at a given diffusion step. + + For a given `timestep` and its previous step, this method calculates the variance as defined in DDIM/DDPM + literature: + var_t = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + where alpha_prod and beta_prod are cumulative products of alphas and betas, respectively. + + Args: + timestep (`int`): + The current timestep in the diffusion process. + prev_timestep (`int`): + The previous timestep in the diffusion process. If negative, uses `final_alpha_cumprod`. + + Returns: + `torch.Tensor`: + The variance for the current timestep. + """ + alpha_prod_t = self.alphas_cumprod[timestep] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + variance = (beta_prod_t_prev / beta_prod_t) * (1 - alpha_prod_t / alpha_prod_t_prev) + + return variance + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + def set_timesteps( + self, + num_inference_steps: Optional[int] = None, + device: Union[str, torch.device] = None, + original_inference_steps: Optional[int] = None, + timesteps: Optional[List[int]] = None, + strength: float = 1.0, + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`, *optional*): + The number of diffusion steps used when generating samples with a pre-trained model. If used, + `timesteps` must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + original_inference_steps (`int`, *optional*): + The original number of inference steps, which will be used to generate a linearly-spaced timestep + schedule (which is different from the standard `diffusers` implementation). We will then take + `num_inference_steps` timesteps from this schedule, evenly spaced in terms of indices, and use that as + our final timestep schedule. If not set, this will default to the `original_inference_steps` attribute. + timesteps (`List[int]`, *optional*): + Custom timesteps used to support arbitrary spacing between timesteps. If `None`, then the default + timestep spacing strategy of equal spacing between timesteps on the training/distillation timestep + schedule is used. If `timesteps` is passed, `num_inference_steps` must be `None`. + strength (`float`, *optional*, defaults to 1.0): + Used to determine the number of timesteps used for inference when using img2img, inpaint, etc. + """ + # 0. Check inputs + if num_inference_steps is None and timesteps is None: + raise ValueError("Must pass exactly one of `num_inference_steps` or `custom_timesteps`.") + + if num_inference_steps is not None and timesteps is not None: + raise ValueError("Can only pass one of `num_inference_steps` or `custom_timesteps`.") + + # 1. Calculate the TCD original training/distillation timestep schedule. + original_steps = ( + original_inference_steps if original_inference_steps is not None else self.config.original_inference_steps + ) + + if original_inference_steps is None: + # default option, timesteps align with discrete inference steps + if original_steps > self.config.num_train_timesteps: + raise ValueError( + f"`original_steps`: {original_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + # TCD Timesteps Setting + # The skipping step parameter k from the paper. + k = self.config.num_train_timesteps // original_steps + # TCD Training/Distillation Steps Schedule + tcd_origin_timesteps = np.asarray(list(range(1, int(original_steps * strength) + 1))) * k - 1 + else: + # customised option, sampled timesteps can be any arbitrary value + tcd_origin_timesteps = np.asarray(list(range(0, int(self.config.num_train_timesteps * strength)))) + + # 2. Calculate the TCD inference timestep schedule. + if timesteps is not None: + # 2.1 Handle custom timestep schedules. + train_timesteps = set(tcd_origin_timesteps) + non_train_timesteps = [] + for i in range(1, len(timesteps)): + if timesteps[i] >= timesteps[i - 1]: + raise ValueError("`custom_timesteps` must be in descending order.") + + if timesteps[i] not in train_timesteps: + non_train_timesteps.append(timesteps[i]) + + if timesteps[0] >= self.config.num_train_timesteps: + raise ValueError( + f"`timesteps` must start before `self.config.train_timesteps`: {self.config.num_train_timesteps}." + ) + + # Raise warning if timestep schedule does not start with self.config.num_train_timesteps - 1 + if strength == 1.0 and timesteps[0] != self.config.num_train_timesteps - 1: + logger.warning( + f"The first timestep on the custom timestep schedule is {timesteps[0]}, not" + f" `self.config.num_train_timesteps - 1`: {self.config.num_train_timesteps - 1}. You may get" + f" unexpected results when using this timestep schedule." + ) + + # Raise warning if custom timestep schedule contains timesteps not on original timestep schedule + if non_train_timesteps: + logger.warning( + f"The custom timestep schedule contains the following timesteps which are not on the original" + f" training/distillation timestep schedule: {non_train_timesteps}. You may get unexpected results" + f" when using this timestep schedule." + ) + + # Raise warning if custom timestep schedule is longer than original_steps + if original_steps is not None: + if len(timesteps) > original_steps: + logger.warning( + f"The number of timesteps in the custom timestep schedule is {len(timesteps)}, which exceeds the" + f" the length of the timestep schedule used for training: {original_steps}. You may get some" + f" unexpected results when using this timestep schedule." + ) + else: + if len(timesteps) > self.config.num_train_timesteps: + logger.warning( + f"The number of timesteps in the custom timestep schedule is {len(timesteps)}, which exceeds the" + f" the length of the timestep schedule used for training: {self.config.num_train_timesteps}. You may get some" + f" unexpected results when using this timestep schedule." + ) + + timesteps = np.array(timesteps, dtype=np.int64) + self.num_inference_steps = len(timesteps) + self.custom_timesteps = True + + # Apply strength (e.g. for img2img pipelines) (see StableDiffusionImg2ImgPipeline.get_timesteps) + init_timestep = min(int(self.num_inference_steps * strength), self.num_inference_steps) + t_start = max(self.num_inference_steps - init_timestep, 0) + timesteps = timesteps[t_start * self.order :] + # TODO: also reset self.num_inference_steps? + else: + # 2.2 Create the "standard" TCD inference timestep schedule. + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:" + f" {self.config.num_train_timesteps} as the unet model trained with this scheduler can only handle" + f" maximal {self.config.num_train_timesteps} timesteps." + ) + + if original_steps is not None: + skipping_step = len(tcd_origin_timesteps) // num_inference_steps + + if skipping_step < 1: + raise ValueError( + f"The combination of `original_steps x strength`: {original_steps} x {strength} is smaller than `num_inference_steps`: {num_inference_steps}. Make sure to either reduce `num_inference_steps` to a value smaller than {int(original_steps * strength)} or increase `strength` to a value higher than {float(num_inference_steps / original_steps)}." + ) + + self.num_inference_steps = num_inference_steps + + if original_steps is not None: + if num_inference_steps > original_steps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `original_inference_steps`:" + f" {original_steps} because the final timestep schedule will be a subset of the" + f" `original_inference_steps`-sized initial timestep schedule." + ) + else: + if num_inference_steps > self.config.num_train_timesteps: + raise ValueError( + f"`num_inference_steps`: {num_inference_steps} cannot be larger than `num_train_timesteps`:" + f" {self.config.num_train_timesteps} because the final timestep schedule will be a subset of the" + f" `num_train_timesteps`-sized initial timestep schedule." + ) + + # TCD Inference Steps Schedule + tcd_origin_timesteps = tcd_origin_timesteps[::-1].copy() + # Select (approximately) evenly spaced indices from tcd_origin_timesteps. + inference_indices = np.linspace(0, len(tcd_origin_timesteps), num=num_inference_steps, endpoint=False) + inference_indices = np.floor(inference_indices).astype(np.int64) + timesteps = tcd_origin_timesteps[inference_indices] + + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.long) + + self._step_index = None + self._begin_index = None + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + eta: float = 0.3, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[TCDSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + eta (`float`): + A stochastic parameter (referred to as `gamma` in the paper) used to control the stochasticity in every + step. When eta = 0, it represents deterministic sampling, whereas eta = 1 indicates full stochastic + sampling. + generator (`torch.Generator`, *optional*): + A random number generator. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_tcd.TCDSchedulerOutput`] or `tuple`. + Returns: + [`~schedulers.scheduling_utils.TCDSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_tcd.TCDSchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + assert 0 <= eta <= 1.0, "gamma must be less than or equal to 1.0" + + # 1. get previous step value + prev_step_index = self.step_index + 1 + if prev_step_index < len(self.timesteps): + prev_timestep = self.timesteps[prev_step_index] + else: + prev_timestep = torch.tensor(0) + + timestep_s = torch.floor((1 - eta) * prev_timestep).to(dtype=torch.long) + + # 2. compute alphas, betas + alpha_prod_t = self.alphas_cumprod[timestep] + beta_prod_t = 1 - alpha_prod_t + + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.final_alpha_cumprod + + alpha_prod_s = self.alphas_cumprod[timestep_s] + beta_prod_s = 1 - alpha_prod_s + + # 3. Compute the predicted noised sample x_s based on the model parameterization + if self.config.prediction_type == "epsilon": # noise-prediction + pred_original_sample = (sample - beta_prod_t.sqrt() * model_output) / alpha_prod_t.sqrt() + pred_epsilon = model_output + pred_noised_sample = alpha_prod_s.sqrt() * pred_original_sample + beta_prod_s.sqrt() * pred_epsilon + elif self.config.prediction_type == "sample": # x-prediction + pred_original_sample = model_output + pred_epsilon = (sample - alpha_prod_t ** (0.5) * pred_original_sample) / beta_prod_t ** (0.5) + pred_noised_sample = alpha_prod_s.sqrt() * pred_original_sample + beta_prod_s.sqrt() * pred_epsilon + elif self.config.prediction_type == "v_prediction": # v-prediction + pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output + pred_epsilon = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample + pred_noised_sample = alpha_prod_s.sqrt() * pred_original_sample + beta_prod_s.sqrt() * pred_epsilon + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample` or" + " `v_prediction` for `TCDScheduler`." + ) + + # 4. Sample and inject noise z ~ N(0, I) for MultiStep Inference + # Noise is not used on the final timestep of the timestep schedule. + # This also means that noise is not used for one-step sampling. + # Eta (referred to as "gamma" in the paper) was introduced to control the stochasticity in every step. + # When eta = 0, it represents deterministic sampling, whereas eta = 1 indicates full stochastic sampling. + if eta > 0: + if self.step_index != self.num_inference_steps - 1: + noise = randn_tensor( + model_output.shape, generator=generator, device=model_output.device, dtype=pred_noised_sample.dtype + ) + prev_sample = (alpha_prod_t_prev / alpha_prod_s).sqrt() * pred_noised_sample + ( + 1 - alpha_prod_t_prev / alpha_prod_s + ).sqrt() * noise + else: + prev_sample = pred_noised_sample + else: + prev_sample = pred_noised_sample + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample, pred_noised_sample) + + return TCDSchedulerOutput(prev_sample=prev_sample, pred_noised_sample=pred_noised_sample) + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.get_velocity + def get_velocity(self, sample: torch.Tensor, noise: torch.Tensor, timesteps: torch.IntTensor) -> torch.Tensor: + """ + Compute the velocity prediction from the sample and noise according to the velocity formula. + + Args: + sample (`torch.Tensor`): + The input sample. + noise (`torch.Tensor`): + The noise tensor. + timesteps (`torch.IntTensor`): + The timesteps for velocity computation. + + Returns: + `torch.Tensor`: + The computed velocity. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as sample + self.alphas_cumprod = self.alphas_cumprod.to(device=sample.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=sample.dtype) + timesteps = timesteps.to(sample.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(sample.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(sample.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity + + def __len__(self): + return self.config.num_train_timesteps + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.previous_timestep + def previous_timestep(self, timestep): + """ + Compute the previous timestep in the diffusion chain. + + Args: + timestep (`int`): + The current timestep. + + Returns: + `int`: + The previous timestep. + """ + if self.custom_timesteps or self.num_inference_steps: + index = (self.timesteps == timestep).nonzero(as_tuple=True)[0][0] + if index == self.timesteps.shape[0] - 1: + prev_t = torch.tensor(-1) + else: + prev_t = self.timesteps[index + 1] + else: + prev_t = timestep - 1 + return prev_t diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_unclip.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_unclip.py new file mode 100644 index 0000000000000000000000000000000000000000..5a978dec649b61fe797ecbc584a72af66c2e6426 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_unclip.py @@ -0,0 +1,372 @@ +# Copyright 2025 Kakao Brain and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from ..utils.torch_utils import randn_tensor +from .scheduling_utils import SchedulerMixin + + +@dataclass +# Copied from diffusers.schedulers.scheduling_ddpm.DDPMSchedulerOutput with DDPM->UnCLIP +class UnCLIPSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's `step` function output. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + pred_original_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + The predicted denoised sample `(x_{0})` based on the model output from the current timestep. + `pred_original_sample` can be used to preview progress or for guidance. + """ + + prev_sample: torch.Tensor + pred_original_sample: Optional[torch.Tensor] = None + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +class UnCLIPScheduler(SchedulerMixin, ConfigMixin): + """ + NOTE: do not use this scheduler. The DDPM scheduler has been updated to support the changes made here. This + scheduler will be removed and replaced with DDPM. + + This is a modified DDPM Scheduler specifically for the karlo unCLIP model. + + This scheduler has some minor variations in how it calculates the learned range variance and dynamically + re-calculates betas based off the timesteps it is skipping. + + The scheduler also uses a slightly different step ratio when computing timesteps to use for inference. + + See [`~DDPMScheduler`] for more information on DDPM scheduling + + Args: + num_train_timesteps (`int`): number of diffusion steps used to train the model. + variance_type (`str`): + options to clip the variance used when adding noise to the denoised sample. Choose from `fixed_small_log` + or `learned_range`. + clip_sample (`bool`, default `True`): + option to clip predicted sample between `-clip_sample_range` and `clip_sample_range` for numerical + stability. + clip_sample_range (`float`, default `1.0`): + The range to clip the sample between. See `clip_sample`. + prediction_type (`str`, default `epsilon`, optional): + prediction type of the scheduler function, one of `epsilon` (predicting the noise of the diffusion process) + or `sample` (directly predicting the noisy sample`) + """ + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + variance_type: str = "fixed_small_log", + clip_sample: bool = True, + clip_sample_range: Optional[float] = 1.0, + prediction_type: str = "epsilon", + beta_schedule: str = "squaredcos_cap_v2", + ): + if beta_schedule != "squaredcos_cap_v2": + raise ValueError("UnCLIPScheduler only supports `beta_schedule`: 'squaredcos_cap_v2'") + + self.betas = betas_for_alpha_bar(num_train_timesteps) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + self.one = torch.tensor(1.0) + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy()) + + self.variance_type = variance_type + + def scale_model_input(self, sample: torch.Tensor, timestep: Optional[int] = None) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): input sample + timestep (`int`, optional): current timestep + + Returns: + `torch.Tensor`: scaled input sample + """ + return sample + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain. Supporting function to be run before inference. + + Note that this scheduler uses a slightly different step ratio than the other diffusers schedulers. The + different step ratio is to mimic the original karlo implementation and does not affect the quality or accuracy + of the results. + + Args: + num_inference_steps (`int`): + the number of diffusion steps used when generating samples with a pre-trained model. + """ + self.num_inference_steps = num_inference_steps + step_ratio = (self.config.num_train_timesteps - 1) / (self.num_inference_steps - 1) + timesteps = (np.arange(0, num_inference_steps) * step_ratio).round()[::-1].copy().astype(np.int64) + self.timesteps = torch.from_numpy(timesteps).to(device) + + def _get_variance(self, t, prev_timestep=None, predicted_variance=None, variance_type=None): + if prev_timestep is None: + prev_timestep = t - 1 + + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.one + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + if prev_timestep == t - 1: + beta = self.betas[t] + else: + beta = 1 - alpha_prod_t / alpha_prod_t_prev + + # For t > 0, compute predicted variance βt (see formula (6) and (7) from https://huggingface.co/papers/2006.11239) + # and sample from it to get previous sample + # x_{t-1} ~ N(pred_prev_sample, variance) == add variance to pred_sample + variance = beta_prod_t_prev / beta_prod_t * beta + + if variance_type is None: + variance_type = self.config.variance_type + + # hacks - were probably added for training stability + if variance_type == "fixed_small_log": + variance = torch.log(torch.clamp(variance, min=1e-20)) + variance = torch.exp(0.5 * variance) + elif variance_type == "learned_range": + # NOTE difference with DDPM scheduler + min_log = variance.log() + max_log = beta.log() + + frac = (predicted_variance + 1) / 2 + variance = frac * max_log + (1 - frac) * min_log + + return variance + + def step( + self, + model_output: torch.Tensor, + timestep: int, + sample: torch.Tensor, + prev_timestep: Optional[int] = None, + generator=None, + return_dict: bool = True, + ) -> Union[UnCLIPSchedulerOutput, Tuple]: + """ + Predict the sample at the previous timestep by reversing the SDE. Core function to propagate the diffusion + process from the learned model outputs (most often the predicted noise). + + Args: + model_output (`torch.Tensor`): direct output from learned diffusion model. + timestep (`int`): current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + current instance of sample being created by diffusion process. + prev_timestep (`int`, *optional*): The previous timestep to predict the previous sample at. + Used to dynamically compute beta. If not given, `t-1` is used and the pre-computed beta is used. + generator: random number generator. + return_dict (`bool`): option for returning tuple rather than UnCLIPSchedulerOutput class + + Returns: + [`~schedulers.scheduling_utils.UnCLIPSchedulerOutput`] or `tuple`: + [`~schedulers.scheduling_utils.UnCLIPSchedulerOutput`] if `return_dict` is True, otherwise a `tuple`. When + returning a tuple, the first element is the sample tensor. + + """ + t = timestep + + if model_output.shape[1] == sample.shape[1] * 2 and self.variance_type == "learned_range": + model_output, predicted_variance = torch.split(model_output, sample.shape[1], dim=1) + else: + predicted_variance = None + + # 1. compute alphas, betas + if prev_timestep is None: + prev_timestep = t - 1 + + alpha_prod_t = self.alphas_cumprod[t] + alpha_prod_t_prev = self.alphas_cumprod[prev_timestep] if prev_timestep >= 0 else self.one + beta_prod_t = 1 - alpha_prod_t + beta_prod_t_prev = 1 - alpha_prod_t_prev + + if prev_timestep == t - 1: + beta = self.betas[t] + alpha = self.alphas[t] + else: + beta = 1 - alpha_prod_t / alpha_prod_t_prev + alpha = 1 - beta + + # 2. compute predicted original sample from predicted noise also called + # "predicted x_0" of formula (15) from https://huggingface.co/papers/2006.11239 + if self.config.prediction_type == "epsilon": + pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5) + elif self.config.prediction_type == "sample": + pred_original_sample = model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon` or `sample`" + " for the UnCLIPScheduler." + ) + + # 3. Clip "predicted x_0" + if self.config.clip_sample: + pred_original_sample = torch.clamp( + pred_original_sample, -self.config.clip_sample_range, self.config.clip_sample_range + ) + + # 4. Compute coefficients for pred_original_sample x_0 and current sample x_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_original_sample_coeff = (alpha_prod_t_prev ** (0.5) * beta) / beta_prod_t + current_sample_coeff = alpha ** (0.5) * beta_prod_t_prev / beta_prod_t + + # 5. Compute predicted previous sample µ_t + # See formula (7) from https://huggingface.co/papers/2006.11239 + pred_prev_sample = pred_original_sample_coeff * pred_original_sample + current_sample_coeff * sample + + # 6. Add noise + variance = 0 + if t > 0: + variance_noise = randn_tensor( + model_output.shape, dtype=model_output.dtype, generator=generator, device=model_output.device + ) + + variance = self._get_variance( + t, + predicted_variance=predicted_variance, + prev_timestep=prev_timestep, + ) + + if self.variance_type == "fixed_small_log": + variance = variance + elif self.variance_type == "learned_range": + variance = (0.5 * variance).exp() + else: + raise ValueError( + f"variance_type given as {self.variance_type} must be one of `fixed_small_log` or `learned_range`" + " for the UnCLIPScheduler." + ) + + variance = variance * variance_noise + + pred_prev_sample = pred_prev_sample + variance + + if not return_dict: + return ( + pred_prev_sample, + pred_original_sample, + ) + + return UnCLIPSchedulerOutput(prev_sample=pred_prev_sample, pred_original_sample=pred_original_sample) + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + """ + Add noise to the original samples according to the noise magnitude at each timestep (this is the forward + diffusion process). + + Args: + original_samples (`torch.Tensor`): + The original samples to which noise will be added. + noise (`torch.Tensor`): + The noise to add to the samples. + timesteps (`torch.IntTensor`): + The timesteps indicating the noise level for each sample. + + Returns: + `torch.Tensor`: + The noisy samples. + """ + # Make sure alphas_cumprod and timestep have same device and dtype as original_samples + # Move the self.alphas_cumprod to device to avoid redundant CPU to GPU data movement + # for the subsequent add_noise calls + self.alphas_cumprod = self.alphas_cumprod.to(device=original_samples.device) + alphas_cumprod = self.alphas_cumprod.to(dtype=original_samples.dtype) + timesteps = timesteps.to(original_samples.device) + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + while len(sqrt_alpha_prod.shape) < len(original_samples.shape): + sqrt_alpha_prod = sqrt_alpha_prod.unsqueeze(-1) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + while len(sqrt_one_minus_alpha_prod.shape) < len(original_samples.shape): + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.unsqueeze(-1) + + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_unipc_multistep.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_unipc_multistep.py new file mode 100644 index 0000000000000000000000000000000000000000..7dc5f467680b305e2f021f153fed86cabe58f0b7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_unipc_multistep.py @@ -0,0 +1,1151 @@ +# Copyright 2025 TSAIL Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# DISCLAIMER: check https://huggingface.co/papers/2302.04867 and https://github.com/wl-zhao/UniPC for more info +# The codebase is modified based on https://github.com/huggingface/diffusers/blob/main/src/diffusers/schedulers/scheduling_dpmsolver_multistep.py + +import math +from typing import List, Literal, Optional, Tuple, Union + +import numpy as np +import torch + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import deprecate, is_scipy_available +from .scheduling_utils import KarrasDiffusionSchedulers, SchedulerMixin, SchedulerOutput + + +if is_scipy_available(): + import scipy.stats + + +# Copied from diffusers.schedulers.scheduling_ddpm.betas_for_alpha_bar +def betas_for_alpha_bar( + num_diffusion_timesteps: int, + max_beta: float = 0.999, + alpha_transform_type: Literal["cosine", "exp"] = "cosine", +) -> torch.Tensor: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + Args: + num_diffusion_timesteps (`int`): + The number of betas to produce. + max_beta (`float`, defaults to `0.999`): + The maximum beta to use; use values lower than 1 to avoid numerical instability. + alpha_transform_type (`"cosine"` or `"exp"`, defaults to `"cosine"`): + The type of noise schedule for `alpha_bar`. Choose from `cosine` or `exp`. + + Returns: + `torch.Tensor`: + The betas used by the scheduler to step the model outputs. + """ + if alpha_transform_type == "cosine": + + def alpha_bar_fn(t): + return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2 + + elif alpha_transform_type == "exp": + + def alpha_bar_fn(t): + return math.exp(t * -12.0) + + else: + raise ValueError(f"Unsupported alpha_transform_type: {alpha_transform_type}") + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar_fn(t2) / alpha_bar_fn(t1), max_beta)) + return torch.tensor(betas, dtype=torch.float32) + + +# Copied from diffusers.schedulers.scheduling_ddim.rescale_zero_terminal_snr +def rescale_zero_terminal_snr(betas): + """ + Rescales betas to have zero terminal SNR Based on https://huggingface.co/papers/2305.08891 (Algorithm 1) + + Args: + betas (`torch.Tensor`): + The betas that the scheduler is being initialized with. + + Returns: + `torch.Tensor`: + Rescaled betas with zero terminal SNR. + """ + # Convert betas to alphas_bar_sqrt + alphas = 1.0 - betas + alphas_cumprod = torch.cumprod(alphas, dim=0) + alphas_bar_sqrt = alphas_cumprod.sqrt() + + # Store old values. + alphas_bar_sqrt_0 = alphas_bar_sqrt[0].clone() + alphas_bar_sqrt_T = alphas_bar_sqrt[-1].clone() + + # Shift so the last timestep is zero. + alphas_bar_sqrt -= alphas_bar_sqrt_T + + # Scale so the first timestep is back to the old value. + alphas_bar_sqrt *= alphas_bar_sqrt_0 / (alphas_bar_sqrt_0 - alphas_bar_sqrt_T) + + # Convert alphas_bar_sqrt to betas + alphas_bar = alphas_bar_sqrt**2 # Revert sqrt + alphas = alphas_bar[1:] / alphas_bar[:-1] # Revert cumprod + alphas = torch.cat([alphas_bar[0:1], alphas]) + betas = 1 - alphas + + return betas + + +class UniPCMultistepScheduler(SchedulerMixin, ConfigMixin): + """ + `UniPCMultistepScheduler` is a training-free framework designed for the fast sampling of diffusion models. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_train_timesteps (`int`, defaults to 1000): + The number of diffusion steps to train the model. + beta_start (`float`, defaults to 0.0001): + The starting `beta` value of inference. + beta_end (`float`, defaults to 0.02): + The final `beta` value. + beta_schedule (`str`, defaults to `"linear"`): + The beta schedule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from + `linear`, `scaled_linear`, or `squaredcos_cap_v2`. + trained_betas (`np.ndarray`, *optional*): + Pass an array of betas directly to the constructor to bypass `beta_start` and `beta_end`. + solver_order (`int`, default `2`): + The UniPC order which can be any positive integer. The effective order of accuracy is `solver_order + 1` + due to the UniC. It is recommended to use `solver_order=2` for guided sampling, and `solver_order=3` for + unconditional sampling. + prediction_type (`str`, defaults to `epsilon`, *optional*): + Prediction type of the scheduler function; can be `epsilon` (predicts the noise of the diffusion process), + `sample` (directly predicts the noisy sample`) or `v_prediction` (see section 2.4 of [Imagen + Video](https://imagen.research.google/video/paper.pdf) paper). + thresholding (`bool`, defaults to `False`): + Whether to use the "dynamic thresholding" method. This is unsuitable for latent-space diffusion models such + as Stable Diffusion. + dynamic_thresholding_ratio (`float`, defaults to 0.995): + The ratio for the dynamic thresholding method. Valid only when `thresholding=True`. + sample_max_value (`float`, defaults to 1.0): + The threshold value for dynamic thresholding. Valid only when `thresholding=True` and `predict_x0=True`. + predict_x0 (`bool`, defaults to `True`): + Whether to use the updating algorithm on the predicted x0. + solver_type (`str`, default `bh2`): + Solver type for UniPC. It is recommended to use `bh1` for unconditional sampling when steps < 10, and `bh2` + otherwise. + lower_order_final (`bool`, default `True`): + Whether to use lower-order solvers in the final steps. Only valid for < 15 inference steps. This can + stabilize the sampling of DPMSolver for steps < 15, especially for steps <= 10. + disable_corrector (`list`, default `[]`): + Decides which step to disable the corrector to mitigate the misalignment between `epsilon_theta(x_t, c)` + and `epsilon_theta(x_t^c, c)` which can influence convergence for a large guidance scale. Corrector is + usually disabled during the first few steps. + solver_p (`SchedulerMixin`, default `None`): + Any other scheduler that if specified, the algorithm becomes `solver_p + UniC`. + use_karras_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use Karras sigmas for step sizes in the noise schedule during the sampling process. If `True`, + the sigmas are determined according to a sequence of noise levels {σi}. + use_exponential_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use exponential sigmas for step sizes in the noise schedule during the sampling process. + use_beta_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use beta sigmas for step sizes in the noise schedule during the sampling process. Refer to [Beta + Sampling is All You Need](https://huggingface.co/papers/2407.12173) for more information. + use_flow_sigmas (`bool`, *optional*, defaults to `False`): + Whether to use flow sigmas for step sizes in the noise schedule during the sampling process. + timestep_spacing (`str`, defaults to `"linspace"`): + The way the timesteps should be scaled. Refer to Table 2 of the [Common Diffusion Noise Schedules and + Sample Steps are Flawed](https://huggingface.co/papers/2305.08891) for more information. + steps_offset (`int`, defaults to 0): + An offset added to the inference steps, as required by some model families. + final_sigmas_type (`str`, defaults to `"zero"`): + The final `sigma` value for the noise schedule during the sampling process. If `"sigma_min"`, the final + sigma is the same as the last sigma in the training schedule. If `zero`, the final sigma is set to 0. + rescale_betas_zero_snr (`bool`, defaults to `False`): + Whether to rescale the betas to have zero terminal SNR. This enables the model to generate very bright and + dark samples instead of limiting it to samples with medium brightness. Loosely related to + [`--offset_noise`](https://github.com/huggingface/diffusers/blob/74fd735eb073eb1d774b1ab4154a0876eb82f055/examples/dreambooth/train_dreambooth.py#L506). + """ + + _compatibles = [e.name for e in KarrasDiffusionSchedulers] + order = 1 + + @register_to_config + def __init__( + self, + num_train_timesteps: int = 1000, + beta_start: float = 0.0001, + beta_end: float = 0.02, + beta_schedule: str = "linear", + trained_betas: Optional[Union[np.ndarray, List[float]]] = None, + solver_order: int = 2, + prediction_type: str = "epsilon", + thresholding: bool = False, + dynamic_thresholding_ratio: float = 0.995, + sample_max_value: float = 1.0, + predict_x0: bool = True, + solver_type: str = "bh2", + lower_order_final: bool = True, + disable_corrector: List[int] = [], + solver_p: SchedulerMixin = None, + use_karras_sigmas: Optional[bool] = False, + use_exponential_sigmas: Optional[bool] = False, + use_beta_sigmas: Optional[bool] = False, + use_flow_sigmas: Optional[bool] = False, + flow_shift: Optional[float] = 1.0, + timestep_spacing: str = "linspace", + steps_offset: int = 0, + final_sigmas_type: Optional[str] = "zero", # "zero", "sigma_min" + rescale_betas_zero_snr: bool = False, + use_dynamic_shifting: bool = False, + time_shift_type: str = "exponential", + ): + if self.config.use_beta_sigmas and not is_scipy_available(): + raise ImportError("Make sure to install scipy if you want to use beta sigmas.") + if sum([self.config.use_beta_sigmas, self.config.use_exponential_sigmas, self.config.use_karras_sigmas]) > 1: + raise ValueError( + "Only one of `config.use_beta_sigmas`, `config.use_exponential_sigmas`, `config.use_karras_sigmas` can be used." + ) + if trained_betas is not None: + self.betas = torch.tensor(trained_betas, dtype=torch.float32) + elif beta_schedule == "linear": + self.betas = torch.linspace(beta_start, beta_end, num_train_timesteps, dtype=torch.float32) + elif beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + self.betas = torch.linspace(beta_start**0.5, beta_end**0.5, num_train_timesteps, dtype=torch.float32) ** 2 + elif beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + self.betas = betas_for_alpha_bar(num_train_timesteps) + else: + raise NotImplementedError(f"{beta_schedule} is not implemented for {self.__class__}") + + if rescale_betas_zero_snr: + self.betas = rescale_zero_terminal_snr(self.betas) + + self.alphas = 1.0 - self.betas + self.alphas_cumprod = torch.cumprod(self.alphas, dim=0) + + if rescale_betas_zero_snr: + # Close to 0 without being 0 so first sigma is not inf + # FP16 smallest positive subnormal works well here + self.alphas_cumprod[-1] = 2**-24 + + # Currently we only support VP-type noise schedule + self.alpha_t = torch.sqrt(self.alphas_cumprod) + self.sigma_t = torch.sqrt(1 - self.alphas_cumprod) + self.lambda_t = torch.log(self.alpha_t) - torch.log(self.sigma_t) + self.sigmas = ((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5 + + # standard deviation of the initial noise distribution + self.init_noise_sigma = 1.0 + + if solver_type not in ["bh1", "bh2"]: + if solver_type in ["midpoint", "heun", "logrho"]: + self.register_to_config(solver_type="bh2") + else: + raise NotImplementedError(f"{solver_type} is not implemented for {self.__class__}") + + self.predict_x0 = predict_x0 + # setable values + self.num_inference_steps = None + timesteps = np.linspace(0, num_train_timesteps - 1, num_train_timesteps, dtype=np.float32)[::-1].copy() + self.timesteps = torch.from_numpy(timesteps) + self.model_outputs = [None] * solver_order + self.timestep_list = [None] * solver_order + self.lower_order_nums = 0 + self.disable_corrector = disable_corrector + self.solver_p = solver_p + self.last_sample = None + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + @property + def step_index(self): + """ + The index counter for current timestep. It will increase 1 after each scheduler step. + """ + return self._step_index + + @property + def begin_index(self): + """ + The index for the first timestep. It should be set from pipeline with `set_begin_index` method. + """ + return self._begin_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.set_begin_index + def set_begin_index(self, begin_index: int = 0): + """ + Sets the begin index for the scheduler. This function should be run from pipeline before the inference. + + Args: + begin_index (`int`, defaults to `0`): + The begin index for the scheduler. + """ + self._begin_index = begin_index + + def set_timesteps( + self, num_inference_steps: int, device: Union[str, torch.device] = None, mu: Optional[float] = None + ): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + """ + # "linspace", "leading", "trailing" corresponds to annotation of Table 2. of https://huggingface.co/papers/2305.08891 + if mu is not None: + assert self.config.use_dynamic_shifting and self.config.time_shift_type == "exponential" + self.config.flow_shift = np.exp(mu) + if self.config.timestep_spacing == "linspace": + timesteps = ( + np.linspace(0, self.config.num_train_timesteps - 1, num_inference_steps + 1) + .round()[::-1][:-1] + .copy() + .astype(np.int64) + ) + elif self.config.timestep_spacing == "leading": + step_ratio = self.config.num_train_timesteps // (num_inference_steps + 1) + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = (np.arange(0, num_inference_steps + 1) * step_ratio).round()[::-1][:-1].copy().astype(np.int64) + timesteps += self.config.steps_offset + elif self.config.timestep_spacing == "trailing": + step_ratio = self.config.num_train_timesteps / num_inference_steps + # creates integer timesteps by multiplying by ratio + # casting to int to avoid issues when num_inference_step is power of 3 + timesteps = np.arange(self.config.num_train_timesteps, 0, -step_ratio).round().copy().astype(np.int64) + timesteps -= 1 + else: + raise ValueError( + f"{self.config.timestep_spacing} is not supported. Please make sure to choose one of 'linspace', 'leading' or 'trailing'." + ) + + sigmas = np.array(((1 - self.alphas_cumprod) / self.alphas_cumprod) ** 0.5) + if self.config.use_karras_sigmas: + log_sigmas = np.log(sigmas) + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_karras(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]).round() + if self.config.final_sigmas_type == "sigma_min": + sigma_last = sigmas[-1] + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + elif self.config.use_exponential_sigmas: + log_sigmas = np.log(sigmas) + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_exponential(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + if self.config.final_sigmas_type == "sigma_min": + sigma_last = sigmas[-1] + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + elif self.config.use_beta_sigmas: + log_sigmas = np.log(sigmas) + sigmas = np.flip(sigmas).copy() + sigmas = self._convert_to_beta(in_sigmas=sigmas, num_inference_steps=num_inference_steps) + timesteps = np.array([self._sigma_to_t(sigma, log_sigmas) for sigma in sigmas]) + if self.config.final_sigmas_type == "sigma_min": + sigma_last = sigmas[-1] + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + elif self.config.use_flow_sigmas: + alphas = np.linspace(1, 1 / self.config.num_train_timesteps, num_inference_steps + 1) + sigmas = 1.0 - alphas + sigmas = np.flip(self.config.flow_shift * sigmas / (1 + (self.config.flow_shift - 1) * sigmas))[:-1].copy() + timesteps = (sigmas * self.config.num_train_timesteps).copy() + if self.config.final_sigmas_type == "sigma_min": + sigma_last = sigmas[-1] + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + else: + sigmas = np.interp(timesteps, np.arange(0, len(sigmas)), sigmas) + if self.config.final_sigmas_type == "sigma_min": + sigma_last = ((1 - self.alphas_cumprod[0]) / self.alphas_cumprod[0]) ** 0.5 + elif self.config.final_sigmas_type == "zero": + sigma_last = 0 + else: + raise ValueError( + f"`final_sigmas_type` must be one of 'zero', or 'sigma_min', but got {self.config.final_sigmas_type}" + ) + sigmas = np.concatenate([sigmas, [sigma_last]]).astype(np.float32) + + self.sigmas = torch.from_numpy(sigmas) + self.timesteps = torch.from_numpy(timesteps).to(device=device, dtype=torch.int64) + + self.num_inference_steps = len(timesteps) + + self.model_outputs = [ + None, + ] * self.config.solver_order + self.lower_order_nums = 0 + self.last_sample = None + if self.solver_p: + self.solver_p.set_timesteps(self.num_inference_steps, device=device) + + # add an index counter for schedulers that allow duplicated timesteps + self._step_index = None + self._begin_index = None + self.sigmas = self.sigmas.to("cpu") # to avoid too much CPU/GPU communication + + # Copied from diffusers.schedulers.scheduling_ddpm.DDPMScheduler._threshold_sample + def _threshold_sample(self, sample: torch.Tensor) -> torch.Tensor: + """ + Apply dynamic thresholding to the predicted sample. + + "Dynamic thresholding: At each sampling step we set s to a certain percentile absolute pixel value in xt0 (the + prediction of x_0 at timestep t), and if s > 1, then we threshold xt0 to the range [-s, s] and then divide by + s. Dynamic thresholding pushes saturated pixels (those near -1 and 1) inwards, thereby actively preventing + pixels from saturation at each step. We find that dynamic thresholding results in significantly better + photorealism as well as better image-text alignment, especially when using very large guidance weights." + + https://huggingface.co/papers/2205.11487 + + Args: + sample (`torch.Tensor`): + The predicted sample to be thresholded. + + Returns: + `torch.Tensor`: + The thresholded sample. + """ + dtype = sample.dtype + batch_size, channels, *remaining_dims = sample.shape + + if dtype not in (torch.float32, torch.float64): + sample = sample.float() # upcast for quantile calculation, and clamp not implemented for cpu half + + # Flatten sample for doing quantile calculation along each image + sample = sample.reshape(batch_size, channels * np.prod(remaining_dims)) + + abs_sample = sample.abs() # "a certain percentile absolute pixel value" + + s = torch.quantile(abs_sample, self.config.dynamic_thresholding_ratio, dim=1) + s = torch.clamp( + s, min=1, max=self.config.sample_max_value + ) # When clamped to min=1, equivalent to standard clipping to [-1, 1] + s = s.unsqueeze(1) # (batch_size, 1) because clamp will broadcast along dim=0 + sample = torch.clamp(sample, -s, s) / s # "we threshold xt0 to the range [-s, s] and then divide by s" + + sample = sample.reshape(batch_size, channels, *remaining_dims) + sample = sample.to(dtype) + + return sample + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._sigma_to_t + def _sigma_to_t(self, sigma, log_sigmas): + """ + Convert sigma values to corresponding timestep values through interpolation. + + Args: + sigma (`np.ndarray`): + The sigma value(s) to convert to timestep(s). + log_sigmas (`np.ndarray`): + The logarithm of the sigma schedule used for interpolation. + + Returns: + `np.ndarray`: + The interpolated timestep value(s) corresponding to the input sigma(s). + """ + # get log sigma + log_sigma = np.log(np.maximum(sigma, 1e-10)) + + # get distribution + dists = log_sigma - log_sigmas[:, np.newaxis] + + # get sigmas range + low_idx = np.cumsum((dists >= 0), axis=0).argmax(axis=0).clip(max=log_sigmas.shape[0] - 2) + high_idx = low_idx + 1 + + low = log_sigmas[low_idx] + high = log_sigmas[high_idx] + + # interpolate sigmas + w = (low - log_sigma) / (low - high) + w = np.clip(w, 0, 1) + + # transform interpolation to time range + t = (1 - w) * low_idx + w * high_idx + t = t.reshape(sigma.shape) + return t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._sigma_to_alpha_sigma_t + def _sigma_to_alpha_sigma_t(self, sigma): + if self.config.use_flow_sigmas: + alpha_t = 1 - sigma + sigma_t = sigma + else: + alpha_t = 1 / ((sigma**2 + 1) ** 0.5) + sigma_t = sigma * alpha_t + + return alpha_t, sigma_t + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_karras + def _convert_to_karras(self, in_sigmas: torch.Tensor, num_inference_steps) -> torch.Tensor: + """ + Construct the noise schedule as proposed in [Elucidating the Design Space of Diffusion-Based Generative + Models](https://huggingface.co/papers/2206.00364). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following the Karras noise schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + rho = 7.0 # 7.0 is the value used in the paper + ramp = np.linspace(0, 1, num_inference_steps) + min_inv_rho = sigma_min ** (1 / rho) + max_inv_rho = sigma_max ** (1 / rho) + sigmas = (max_inv_rho + ramp * (min_inv_rho - max_inv_rho)) ** rho + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_exponential + def _convert_to_exponential(self, in_sigmas: torch.Tensor, num_inference_steps: int) -> torch.Tensor: + """ + Construct an exponential noise schedule. + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + + Returns: + `torch.Tensor`: + The converted sigma values following an exponential schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.exp(np.linspace(math.log(sigma_max), math.log(sigma_min), num_inference_steps)) + return sigmas + + # Copied from diffusers.schedulers.scheduling_euler_discrete.EulerDiscreteScheduler._convert_to_beta + def _convert_to_beta( + self, in_sigmas: torch.Tensor, num_inference_steps: int, alpha: float = 0.6, beta: float = 0.6 + ) -> torch.Tensor: + """ + Construct a beta noise schedule as proposed in [Beta Sampling is All You + Need](https://huggingface.co/papers/2407.12173). + + Args: + in_sigmas (`torch.Tensor`): + The input sigma values to be converted. + num_inference_steps (`int`): + The number of inference steps to generate the noise schedule for. + alpha (`float`, *optional*, defaults to `0.6`): + The alpha parameter for the beta distribution. + beta (`float`, *optional*, defaults to `0.6`): + The beta parameter for the beta distribution. + + Returns: + `torch.Tensor`: + The converted sigma values following a beta distribution schedule. + """ + + # Hack to make sure that other schedulers which copy this function don't break + # TODO: Add this logic to the other schedulers + if hasattr(self.config, "sigma_min"): + sigma_min = self.config.sigma_min + else: + sigma_min = None + + if hasattr(self.config, "sigma_max"): + sigma_max = self.config.sigma_max + else: + sigma_max = None + + sigma_min = sigma_min if sigma_min is not None else in_sigmas[-1].item() + sigma_max = sigma_max if sigma_max is not None else in_sigmas[0].item() + + sigmas = np.array( + [ + sigma_min + (ppf * (sigma_max - sigma_min)) + for ppf in [ + scipy.stats.beta.ppf(timestep, alpha, beta) + for timestep in 1 - np.linspace(0, 1, num_inference_steps) + ] + ] + ) + return sigmas + + def convert_model_output( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + **kwargs, + ) -> torch.Tensor: + r""" + Convert the model output to the corresponding type the UniPC algorithm needs. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + + Returns: + `torch.Tensor`: + The converted model output. + """ + timestep = args[0] if len(args) > 0 else kwargs.pop("timestep", None) + if sample is None: + if len(args) > 1: + sample = args[1] + else: + raise ValueError("missing `sample` as a required keyword argument") + if timestep is not None: + deprecate( + "timesteps", + "1.0.0", + "Passing `timesteps` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + sigma = self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + + if self.predict_x0: + if self.config.prediction_type == "epsilon": + x0_pred = (sample - sigma_t * model_output) / alpha_t + elif self.config.prediction_type == "sample": + x0_pred = model_output + elif self.config.prediction_type == "v_prediction": + x0_pred = alpha_t * sample - sigma_t * model_output + elif self.config.prediction_type == "flow_prediction": + sigma_t = self.sigmas[self.step_index] + x0_pred = sample - sigma_t * model_output + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, " + "`v_prediction`, or `flow_prediction` for the UniPCMultistepScheduler." + ) + + if self.config.thresholding: + x0_pred = self._threshold_sample(x0_pred) + + return x0_pred + else: + if self.config.prediction_type == "epsilon": + return model_output + elif self.config.prediction_type == "sample": + epsilon = (sample - alpha_t * model_output) / sigma_t + return epsilon + elif self.config.prediction_type == "v_prediction": + epsilon = alpha_t * model_output + sigma_t * sample + return epsilon + else: + raise ValueError( + f"prediction_type given as {self.config.prediction_type} must be one of `epsilon`, `sample`, or" + " `v_prediction` for the UniPCMultistepScheduler." + ) + + def multistep_uni_p_bh_update( + self, + model_output: torch.Tensor, + *args, + sample: torch.Tensor = None, + order: int = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the UniP (B(h) version). Alternatively, `self.solver_p` is used if is specified. + + Args: + model_output (`torch.Tensor`): + The direct output from the learned diffusion model at the current timestep. + prev_timestep (`int`): + The previous discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + order (`int`): + The order of UniP at this timestep (corresponds to the *p* in UniPC-p). + + Returns: + `torch.Tensor`: + The sample tensor at the previous timestep. + """ + prev_timestep = args[0] if len(args) > 0 else kwargs.pop("prev_timestep", None) + if sample is None: + if len(args) > 1: + sample = args[1] + else: + raise ValueError("missing `sample` as a required keyword argument") + if order is None: + if len(args) > 2: + order = args[2] + else: + raise ValueError("missing `order` as a required keyword argument") + if prev_timestep is not None: + deprecate( + "prev_timestep", + "1.0.0", + "Passing `prev_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + model_output_list = self.model_outputs + + s0 = self.timestep_list[-1] + m0 = model_output_list[-1] + x = sample + + if self.solver_p: + x_t = self.solver_p.step(model_output, s0, x).prev_sample + return x_t + + sigma_t, sigma_s0 = self.sigmas[self.step_index + 1], self.sigmas[self.step_index] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + + h = lambda_t - lambda_s0 + device = sample.device + + rks = [] + D1s = [] + for i in range(1, order): + si = self.step_index - i + mi = model_output_list[-(i + 1)] + alpha_si, sigma_si = self._sigma_to_alpha_sigma_t(self.sigmas[si]) + lambda_si = torch.log(alpha_si) - torch.log(sigma_si) + rk = (lambda_si - lambda_s0) / h + rks.append(rk) + D1s.append((mi - m0) / rk) + + rks.append(1.0) + rks = torch.tensor(rks, device=device) + + R = [] + b = [] + + hh = -h if self.predict_x0 else h + h_phi_1 = torch.expm1(hh) # h\phi_1(h) = e^h - 1 + h_phi_k = h_phi_1 / hh - 1 + + factorial_i = 1 + + if self.config.solver_type == "bh1": + B_h = hh + elif self.config.solver_type == "bh2": + B_h = torch.expm1(hh) + else: + raise NotImplementedError() + + for i in range(1, order + 1): + R.append(torch.pow(rks, i - 1)) + b.append(h_phi_k * factorial_i / B_h) + factorial_i *= i + 1 + h_phi_k = h_phi_k / hh - 1 / factorial_i + + R = torch.stack(R) + b = torch.tensor(b, device=device) + + if len(D1s) > 0: + D1s = torch.stack(D1s, dim=1) # (B, K) + # for order 2, we use a simplified version + if order == 2: + rhos_p = torch.tensor([0.5], dtype=x.dtype, device=device) + else: + rhos_p = torch.linalg.solve(R[:-1, :-1], b[:-1]).to(device).to(x.dtype) + else: + D1s = None + + if self.predict_x0: + x_t_ = sigma_t / sigma_s0 * x - alpha_t * h_phi_1 * m0 + if D1s is not None: + pred_res = torch.einsum("k,bkc...->bc...", rhos_p, D1s) + else: + pred_res = 0 + x_t = x_t_ - alpha_t * B_h * pred_res + else: + x_t_ = alpha_t / alpha_s0 * x - sigma_t * h_phi_1 * m0 + if D1s is not None: + pred_res = torch.einsum("k,bkc...->bc...", rhos_p, D1s) + else: + pred_res = 0 + x_t = x_t_ - sigma_t * B_h * pred_res + + x_t = x_t.to(x.dtype) + return x_t + + def multistep_uni_c_bh_update( + self, + this_model_output: torch.Tensor, + *args, + last_sample: torch.Tensor = None, + this_sample: torch.Tensor = None, + order: int = None, + **kwargs, + ) -> torch.Tensor: + """ + One step for the UniC (B(h) version). + + Args: + this_model_output (`torch.Tensor`): + The model outputs at `x_t`. + this_timestep (`int`): + The current timestep `t`. + last_sample (`torch.Tensor`): + The generated sample before the last predictor `x_{t-1}`. + this_sample (`torch.Tensor`): + The generated sample after the last predictor `x_{t}`. + order (`int`): + The `p` of UniC-p at this step. The effective order of accuracy should be `order + 1`. + + Returns: + `torch.Tensor`: + The corrected sample tensor at the current timestep. + """ + this_timestep = args[0] if len(args) > 0 else kwargs.pop("this_timestep", None) + if last_sample is None: + if len(args) > 1: + last_sample = args[1] + else: + raise ValueError("missing `last_sample` as a required keyword argument") + if this_sample is None: + if len(args) > 2: + this_sample = args[2] + else: + raise ValueError("missing `this_sample` as a required keyword argument") + if order is None: + if len(args) > 3: + order = args[3] + else: + raise ValueError("missing `order` as a required keyword argument") + if this_timestep is not None: + deprecate( + "this_timestep", + "1.0.0", + "Passing `this_timestep` is deprecated and has no effect as model output conversion is now handled via an internal counter `self.step_index`", + ) + + model_output_list = self.model_outputs + + m0 = model_output_list[-1] + x = last_sample + x_t = this_sample + model_t = this_model_output + + sigma_t, sigma_s0 = self.sigmas[self.step_index], self.sigmas[self.step_index - 1] + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma_t) + alpha_s0, sigma_s0 = self._sigma_to_alpha_sigma_t(sigma_s0) + + lambda_t = torch.log(alpha_t) - torch.log(sigma_t) + lambda_s0 = torch.log(alpha_s0) - torch.log(sigma_s0) + + h = lambda_t - lambda_s0 + device = this_sample.device + + rks = [] + D1s = [] + for i in range(1, order): + si = self.step_index - (i + 1) + mi = model_output_list[-(i + 1)] + alpha_si, sigma_si = self._sigma_to_alpha_sigma_t(self.sigmas[si]) + lambda_si = torch.log(alpha_si) - torch.log(sigma_si) + rk = (lambda_si - lambda_s0) / h + rks.append(rk) + D1s.append((mi - m0) / rk) + + rks.append(1.0) + rks = torch.tensor(rks, device=device) + + R = [] + b = [] + + hh = -h if self.predict_x0 else h + h_phi_1 = torch.expm1(hh) # h\phi_1(h) = e^h - 1 + h_phi_k = h_phi_1 / hh - 1 + + factorial_i = 1 + + if self.config.solver_type == "bh1": + B_h = hh + elif self.config.solver_type == "bh2": + B_h = torch.expm1(hh) + else: + raise NotImplementedError() + + for i in range(1, order + 1): + R.append(torch.pow(rks, i - 1)) + b.append(h_phi_k * factorial_i / B_h) + factorial_i *= i + 1 + h_phi_k = h_phi_k / hh - 1 / factorial_i + + R = torch.stack(R) + b = torch.tensor(b, device=device) + + if len(D1s) > 0: + D1s = torch.stack(D1s, dim=1) + else: + D1s = None + + # for order 1, we use a simplified version + if order == 1: + rhos_c = torch.tensor([0.5], dtype=x.dtype, device=device) + else: + rhos_c = torch.linalg.solve(R, b).to(device).to(x.dtype) + + if self.predict_x0: + x_t_ = sigma_t / sigma_s0 * x - alpha_t * h_phi_1 * m0 + if D1s is not None: + corr_res = torch.einsum("k,bkc...->bc...", rhos_c[:-1], D1s) + else: + corr_res = 0 + D1_t = model_t - m0 + x_t = x_t_ - alpha_t * B_h * (corr_res + rhos_c[-1] * D1_t) + else: + x_t_ = alpha_t / alpha_s0 * x - sigma_t * h_phi_1 * m0 + if D1s is not None: + corr_res = torch.einsum("k,bkc...->bc...", rhos_c[:-1], D1s) + else: + corr_res = 0 + D1_t = model_t - m0 + x_t = x_t_ - sigma_t * B_h * (corr_res + rhos_c[-1] * D1_t) + x_t = x_t.to(x.dtype) + return x_t + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.index_for_timestep + def index_for_timestep(self, timestep, schedule_timesteps=None): + if schedule_timesteps is None: + schedule_timesteps = self.timesteps + + index_candidates = (schedule_timesteps == timestep).nonzero() + + if len(index_candidates) == 0: + step_index = len(self.timesteps) - 1 + # The sigma index that is taken for the **very** first `step` + # is always the second index (or the last index if there is only 1) + # This way we can ensure we don't accidentally skip a sigma in + # case we start in the middle of the denoising schedule (e.g. for image-to-image) + elif len(index_candidates) > 1: + step_index = index_candidates[1].item() + else: + step_index = index_candidates[0].item() + + return step_index + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler._init_step_index + def _init_step_index(self, timestep): + """ + Initialize the step_index counter for the scheduler. + """ + + if self.begin_index is None: + if isinstance(timestep, torch.Tensor): + timestep = timestep.to(self.timesteps.device) + self._step_index = self.index_for_timestep(timestep) + else: + self._step_index = self._begin_index + + def step( + self, + model_output: torch.Tensor, + timestep: Union[int, torch.Tensor], + sample: torch.Tensor, + return_dict: bool = True, + ) -> Union[SchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by reversing the SDE. This function propagates the sample with + the multistep UniPC. + + Args: + model_output (`torch.Tensor`): + The direct output from learned diffusion model. + timestep (`int`): + The current discrete timestep in the diffusion chain. + sample (`torch.Tensor`): + A current instance of a sample created by the diffusion process. + return_dict (`bool`): + Whether or not to return a [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`. + + Returns: + [`~schedulers.scheduling_utils.SchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_utils.SchedulerOutput`] is returned, otherwise a + tuple is returned where the first element is the sample tensor. + + """ + if self.num_inference_steps is None: + raise ValueError( + "Number of inference steps is 'None', you need to run 'set_timesteps' after creating the scheduler" + ) + + if self.step_index is None: + self._init_step_index(timestep) + + use_corrector = ( + self.step_index > 0 and self.step_index - 1 not in self.disable_corrector and self.last_sample is not None + ) + + model_output_convert = self.convert_model_output(model_output, sample=sample) + if use_corrector: + sample = self.multistep_uni_c_bh_update( + this_model_output=model_output_convert, + last_sample=self.last_sample, + this_sample=sample, + order=self.this_order, + ) + + for i in range(self.config.solver_order - 1): + self.model_outputs[i] = self.model_outputs[i + 1] + self.timestep_list[i] = self.timestep_list[i + 1] + + self.model_outputs[-1] = model_output_convert + self.timestep_list[-1] = timestep + + if self.config.lower_order_final: + this_order = min(self.config.solver_order, len(self.timesteps) - self.step_index) + else: + this_order = self.config.solver_order + + self.this_order = min(this_order, self.lower_order_nums + 1) # warmup for multistep + assert self.this_order > 0 + + self.last_sample = sample + prev_sample = self.multistep_uni_p_bh_update( + model_output=model_output, # pass the original non-converted model output, in case solver-p is used + sample=sample, + order=self.this_order, + ) + + if self.lower_order_nums < self.config.solver_order: + self.lower_order_nums += 1 + + # upon completion increase step index by one + self._step_index += 1 + + if not return_dict: + return (prev_sample,) + + return SchedulerOutput(prev_sample=prev_sample) + + def scale_model_input(self, sample: torch.Tensor, *args, **kwargs) -> torch.Tensor: + """ + Ensures interchangeability with schedulers that need to scale the denoising model input depending on the + current timestep. + + Args: + sample (`torch.Tensor`): + The input sample. + + Returns: + `torch.Tensor`: + A scaled input sample. + """ + return sample + + # Copied from diffusers.schedulers.scheduling_dpmsolver_multistep.DPMSolverMultistepScheduler.add_noise + def add_noise( + self, + original_samples: torch.Tensor, + noise: torch.Tensor, + timesteps: torch.IntTensor, + ) -> torch.Tensor: + # Make sure sigmas and timesteps have the same device and dtype as original_samples + sigmas = self.sigmas.to(device=original_samples.device, dtype=original_samples.dtype) + if original_samples.device.type == "mps" and torch.is_floating_point(timesteps): + # mps does not support float64 + schedule_timesteps = self.timesteps.to(original_samples.device, dtype=torch.float32) + timesteps = timesteps.to(original_samples.device, dtype=torch.float32) + else: + schedule_timesteps = self.timesteps.to(original_samples.device) + timesteps = timesteps.to(original_samples.device) + + # begin_index is None when the scheduler is used for training or pipeline does not implement set_begin_index + if self.begin_index is None: + step_indices = [self.index_for_timestep(t, schedule_timesteps) for t in timesteps] + elif self.step_index is not None: + # add_noise is called after first denoising step (for inpainting) + step_indices = [self.step_index] * timesteps.shape[0] + else: + # add noise is called before first denoising step to create initial latent(img2img) + step_indices = [self.begin_index] * timesteps.shape[0] + + sigma = sigmas[step_indices].flatten() + while len(sigma.shape) < len(original_samples.shape): + sigma = sigma.unsqueeze(-1) + + alpha_t, sigma_t = self._sigma_to_alpha_sigma_t(sigma) + noisy_samples = alpha_t * original_samples + sigma_t * noise + return noisy_samples + + def __len__(self): + return self.config.num_train_timesteps diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..a355c7bb1a518f4e6e20278e4fe47c4e83334b70 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_utils.py @@ -0,0 +1,190 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +import importlib +import os +from dataclasses import dataclass +from enum import Enum +from typing import Optional, Union + +import torch +from huggingface_hub.utils import validate_hf_hub_args +from typing_extensions import Self + +from ..utils import BaseOutput, PushToHubMixin + + +SCHEDULER_CONFIG_NAME = "scheduler_config.json" + + +# NOTE: We make this type an enum because it simplifies usage in docs and prevents +# circular imports when used for `_compatibles` within the schedulers module. +# When it's used as a type in pipelines, it really is a Union because the actual +# scheduler instance is passed in. +class KarrasDiffusionSchedulers(Enum): + DDIMScheduler = 1 + DDPMScheduler = 2 + PNDMScheduler = 3 + LMSDiscreteScheduler = 4 + EulerDiscreteScheduler = 5 + HeunDiscreteScheduler = 6 + EulerAncestralDiscreteScheduler = 7 + DPMSolverMultistepScheduler = 8 + DPMSolverSinglestepScheduler = 9 + KDPM2DiscreteScheduler = 10 + KDPM2AncestralDiscreteScheduler = 11 + DEISMultistepScheduler = 12 + UniPCMultistepScheduler = 13 + DPMSolverSDEScheduler = 14 + EDMEulerScheduler = 15 + + +AysSchedules = { + "StableDiffusionTimesteps": [999, 850, 736, 645, 545, 455, 343, 233, 124, 24], + "StableDiffusionSigmas": [14.615, 6.475, 3.861, 2.697, 1.886, 1.396, 0.963, 0.652, 0.399, 0.152, 0.0], + "StableDiffusionXLTimesteps": [999, 845, 730, 587, 443, 310, 193, 116, 53, 13], + "StableDiffusionXLSigmas": [14.615, 6.315, 3.771, 2.181, 1.342, 0.862, 0.555, 0.380, 0.234, 0.113, 0.0], + "StableDiffusionVideoSigmas": [700.00, 54.5, 15.886, 7.977, 4.248, 1.789, 0.981, 0.403, 0.173, 0.034, 0.0], +} + + +@dataclass +class SchedulerOutput(BaseOutput): + """ + Base class for the output of a scheduler's `step` function. + + Args: + prev_sample (`torch.Tensor` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample `(x_{t-1})` of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: torch.Tensor + + +class SchedulerMixin(PushToHubMixin): + """ + Base class for all schedulers. + + [`SchedulerMixin`] contains common functions shared by all schedulers such as general loading and saving + functionalities. + + [`ConfigMixin`] takes care of storing the configuration attributes (like `num_train_timesteps`) that are passed to + the scheduler's `__init__` function, and the attributes can be accessed by `scheduler.config.num_train_timesteps`. + + Class attributes: + - **_compatibles** (`List[str]`) -- A list of scheduler classes that are compatible with the parent scheduler + class. Use [`~ConfigMixin.from_config`] to load a different compatible scheduler class (should be overridden + by parent class). + """ + + config_name = SCHEDULER_CONFIG_NAME + _compatibles = [] + has_compatibles = True + + @classmethod + @validate_hf_hub_args + def from_pretrained( + cls, + pretrained_model_name_or_path: Optional[Union[str, os.PathLike]] = None, + subfolder: Optional[str] = None, + return_unused_kwargs=False, + **kwargs, + ) -> Self: + r""" + Instantiate a scheduler from a pre-defined JSON configuration file in a local directory or Hub repository. + + Parameters: + pretrained_model_name_or_path (`str` or `os.PathLike`, *optional*): + Can be either: + + - A string, the *model id* (for example `google/ddpm-celebahq-256`) of a pretrained model hosted on + the Hub. + - A path to a *directory* (for example `./my_model_directory`) containing the scheduler + configuration saved with [`~SchedulerMixin.save_pretrained`]. + subfolder (`str`, *optional*): + The subfolder location of a model file within a larger model repository on the Hub or locally. + return_unused_kwargs (`bool`, *optional*, defaults to `False`): + Whether kwargs that are not consumed by the Python class should be returned or not. + cache_dir (`Union[str, os.PathLike]`, *optional*): + Path to a directory where a downloaded pretrained model configuration is cached if the standard cache + is not used. + force_download (`bool`, *optional*, defaults to `False`): + Whether or not to force the (re-)download of the model weights and configuration files, overriding the + cached versions if they exist. + + proxies (`Dict[str, str]`, *optional*): + A dictionary of proxy servers to use by protocol or endpoint, for example, `{'http': 'foo.bar:3128', + 'http://hostname': 'foo.bar:4012'}`. The proxies are used on each request. + output_loading_info(`bool`, *optional*, defaults to `False`): + Whether or not to also return a dictionary containing missing keys, unexpected keys and error messages. + local_files_only(`bool`, *optional*, defaults to `False`): + Whether to only load local model weights and configuration files or not. If set to `True`, the model + won't be downloaded from the Hub. + token (`str` or *bool*, *optional*): + The token to use as HTTP bearer authorization for remote files. If `True`, the token generated from + `diffusers-cli login` (stored in `~/.huggingface`) is used. + revision (`str`, *optional*, defaults to `"main"`): + The specific model version to use. It can be a branch name, a tag name, a commit id, or any identifier + allowed by Git. + + > [!TIP] > To use private or [gated models](https://huggingface.co/docs/hub/models-gated#gated-models), log-in + with `hf > auth login`. You can also activate the special > + ["offline-mode"](https://huggingface.co/diffusers/installation.html#offline-mode) to use this method in a > + firewalled environment. + + """ + config, kwargs, commit_hash = cls.load_config( + pretrained_model_name_or_path=pretrained_model_name_or_path, + subfolder=subfolder, + return_unused_kwargs=True, + return_commit_hash=True, + **kwargs, + ) + return cls.from_config(config, return_unused_kwargs=return_unused_kwargs, **kwargs) + + def save_pretrained(self, save_directory: Union[str, os.PathLike], push_to_hub: bool = False, **kwargs): + """ + Save a scheduler configuration object to a directory so that it can be reloaded using the + [`~SchedulerMixin.from_pretrained`] class method. + + Args: + save_directory (`str` or `os.PathLike`): + Directory where the configuration JSON file will be saved (will be created if it does not exist). + push_to_hub (`bool`, *optional*, defaults to `False`): + Whether or not to push your model to the Hugging Face Hub after saving it. You can specify the + repository you want to push to with `repo_id` (will default to the name of `save_directory` in your + namespace). + kwargs (`Dict[str, Any]`, *optional*): + Additional keyword arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method. + """ + self.save_config(save_directory=save_directory, push_to_hub=push_to_hub, **kwargs) + + @property + def compatibles(self): + """ + Returns all schedulers that are compatible with this scheduler + + Returns: + `List[SchedulerMixin]`: List of compatible schedulers + """ + return self._get_compatibles() + + @classmethod + def _get_compatibles(cls): + compatible_classes_str = list(set([cls.__name__] + cls._compatibles)) + diffusers_library = importlib.import_module(__name__.split(".")[0]) + compatible_classes = [ + getattr(diffusers_library, c) for c in compatible_classes_str if hasattr(diffusers_library, c) + ] + return compatible_classes diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_utils_flax.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_utils_flax.py new file mode 100644 index 0000000000000000000000000000000000000000..0534e47d8a3034c0121d411aa48c63a6e0b8c4a9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_utils_flax.py @@ -0,0 +1,290 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +import importlib +import math +import os +from dataclasses import dataclass +from enum import Enum +from typing import Optional, Tuple, Union + +import flax +import jax.numpy as jnp +from huggingface_hub.utils import validate_hf_hub_args + +from ..utils import BaseOutput, PushToHubMixin, logging + + +logger = logging.get_logger(__name__) + +SCHEDULER_CONFIG_NAME = "scheduler_config.json" + + +# NOTE: We make this type an enum because it simplifies usage in docs and prevents +# circular imports when used for `_compatibles` within the schedulers module. +# When it's used as a type in pipelines, it really is a Union because the actual +# scheduler instance is passed in. +class FlaxKarrasDiffusionSchedulers(Enum): + FlaxDDIMScheduler = 1 + FlaxDDPMScheduler = 2 + FlaxPNDMScheduler = 3 + FlaxLMSDiscreteScheduler = 4 + FlaxDPMSolverMultistepScheduler = 5 + FlaxEulerDiscreteScheduler = 6 + + +@dataclass +class FlaxSchedulerOutput(BaseOutput): + """ + Base class for the scheduler's step function output. + + Args: + prev_sample (`jnp.ndarray` of shape `(batch_size, num_channels, height, width)` for images): + Computed sample (x_{t-1}) of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: jnp.ndarray + + +class FlaxSchedulerMixin(PushToHubMixin): + """ + Mixin containing common functions for the schedulers. + + Class attributes: + - **_compatibles** (`List[str]`) -- A list of classes that are compatible with the parent class, so that + `from_config` can be used from a class different than the one used to save the config (should be overridden + by parent class). + """ + + config_name = SCHEDULER_CONFIG_NAME + ignore_for_config = ["dtype"] + _compatibles = [] + has_compatibles = True + + @classmethod + @validate_hf_hub_args + def from_pretrained( + cls, + pretrained_model_name_or_path: Optional[Union[str, os.PathLike]] = None, + subfolder: Optional[str] = None, + return_unused_kwargs=False, + **kwargs, + ): + r""" + Instantiate a Scheduler class from a pre-defined JSON-file. + + Parameters: + pretrained_model_name_or_path (`str` or `os.PathLike`, *optional*): + Can be either: + + - A string, the *model id* of a model repo on huggingface.co. Valid model ids should have an + organization name, like `google/ddpm-celebahq-256`. + - A path to a *directory* containing model weights saved using [`~SchedulerMixin.save_pretrained`], + e.g., `./my_model_directory/`. + subfolder (`str`, *optional*): + In case the relevant files are located inside a subfolder of the model repo (either remote in + huggingface.co or downloaded locally), you can specify the folder name here. + return_unused_kwargs (`bool`, *optional*, defaults to `False`): + Whether kwargs that are not consumed by the Python class should be returned or not. + + cache_dir (`Union[str, os.PathLike]`, *optional*): + Path to a directory in which a downloaded pretrained model configuration should be cached if the + standard cache should not be used. + force_download (`bool`, *optional*, defaults to `False`): + Whether or not to force the (re-)download of the model weights and configuration files, overriding the + cached versions if they exist. + + proxies (`Dict[str, str]`, *optional*): + A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128', + 'http://hostname': 'foo.bar:4012'}`. The proxies are used on each request. + output_loading_info(`bool`, *optional*, defaults to `False`): + Whether or not to also return a dictionary containing missing keys, unexpected keys and error messages. + local_files_only(`bool`, *optional*, defaults to `False`): + Whether or not to only look at local files (i.e., do not try to download the model). + token (`str` or *bool*, *optional*): + The token to use as HTTP bearer authorization for remote files. If `True`, will use the token generated + when running `transformers-cli login` (stored in `~/.huggingface`). + revision (`str`, *optional*, defaults to `"main"`): + The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a + git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any + identifier allowed by git. + + > [!TIP] > It is required to be logged in (`hf auth login`) when you want to use private or [gated > + models](https://huggingface.co/docs/hub/models-gated#gated-models). + + > [!TIP] > Activate the special + ["offline-mode"](https://huggingface.co/transformers/installation.html#offline-mode) to > use this method in a + firewalled environment. + + """ + logger.warning( + "Flax classes are deprecated and will be removed in Diffusers v1.0.0. We " + "recommend migrating to PyTorch classes or pinning your version of Diffusers." + ) + config, kwargs = cls.load_config( + pretrained_model_name_or_path=pretrained_model_name_or_path, + subfolder=subfolder, + return_unused_kwargs=True, + **kwargs, + ) + scheduler, unused_kwargs = cls.from_config(config, return_unused_kwargs=True, **kwargs) + + if hasattr(scheduler, "create_state") and getattr(scheduler, "has_state", False): + state = scheduler.create_state() + + if return_unused_kwargs: + return scheduler, state, unused_kwargs + + return scheduler, state + + def save_pretrained(self, save_directory: Union[str, os.PathLike], push_to_hub: bool = False, **kwargs): + """ + Save a scheduler configuration object to the directory `save_directory`, so that it can be re-loaded using the + [`~FlaxSchedulerMixin.from_pretrained`] class method. + + Args: + save_directory (`str` or `os.PathLike`): + Directory where the configuration JSON file will be saved (will be created if it does not exist). + push_to_hub (`bool`, *optional*, defaults to `False`): + Whether or not to push your model to the Hugging Face Hub after saving it. You can specify the + repository you want to push to with `repo_id` (will default to the name of `save_directory` in your + namespace). + kwargs (`Dict[str, Any]`, *optional*): + Additional keyword arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method. + """ + self.save_config(save_directory=save_directory, push_to_hub=push_to_hub, **kwargs) + + @property + def compatibles(self): + """ + Returns all schedulers that are compatible with this scheduler + + Returns: + `List[SchedulerMixin]`: List of compatible schedulers + """ + return self._get_compatibles() + + @classmethod + def _get_compatibles(cls): + compatible_classes_str = list(set([cls.__name__] + cls._compatibles)) + diffusers_library = importlib.import_module(__name__.split(".")[0]) + compatible_classes = [ + getattr(diffusers_library, c) for c in compatible_classes_str if hasattr(diffusers_library, c) + ] + return compatible_classes + + +def broadcast_to_shape_from_left(x: jnp.ndarray, shape: Tuple[int]) -> jnp.ndarray: + assert len(shape) >= x.ndim + return jnp.broadcast_to(x.reshape(x.shape + (1,) * (len(shape) - x.ndim)), shape) + + +def betas_for_alpha_bar(num_diffusion_timesteps: int, max_beta=0.999, dtype=jnp.float32) -> jnp.ndarray: + """ + Create a beta schedule that discretizes the given alpha_t_bar function, which defines the cumulative product of + (1-beta) over time from t = [0,1]. + + Contains a function alpha_bar that takes an argument t and transforms it to the cumulative product of (1-beta) up + to that part of the diffusion process. + + + Args: + num_diffusion_timesteps (`int`): the number of betas to produce. + max_beta (`float`): the maximum beta to use; use values lower than 1 to + prevent singularities. + + Returns: + betas (`jnp.ndarray`): the betas used by the scheduler to step the model outputs + """ + + def alpha_bar(time_step): + return math.cos((time_step + 0.008) / 1.008 * math.pi / 2) ** 2 + + betas = [] + for i in range(num_diffusion_timesteps): + t1 = i / num_diffusion_timesteps + t2 = (i + 1) / num_diffusion_timesteps + betas.append(min(1 - alpha_bar(t2) / alpha_bar(t1), max_beta)) + return jnp.array(betas, dtype=dtype) + + +@flax.struct.dataclass +class CommonSchedulerState: + alphas: jnp.ndarray + betas: jnp.ndarray + alphas_cumprod: jnp.ndarray + + @classmethod + def create(cls, scheduler): + config = scheduler.config + + if config.trained_betas is not None: + betas = jnp.asarray(config.trained_betas, dtype=scheduler.dtype) + elif config.beta_schedule == "linear": + betas = jnp.linspace(config.beta_start, config.beta_end, config.num_train_timesteps, dtype=scheduler.dtype) + elif config.beta_schedule == "scaled_linear": + # this schedule is very specific to the latent diffusion model. + betas = ( + jnp.linspace( + config.beta_start**0.5, config.beta_end**0.5, config.num_train_timesteps, dtype=scheduler.dtype + ) + ** 2 + ) + elif config.beta_schedule == "squaredcos_cap_v2": + # Glide cosine schedule + betas = betas_for_alpha_bar(config.num_train_timesteps, dtype=scheduler.dtype) + else: + raise NotImplementedError( + f"beta_schedule {config.beta_schedule} is not implemented for scheduler {scheduler.__class__.__name__}" + ) + + alphas = 1.0 - betas + + alphas_cumprod = jnp.cumprod(alphas, axis=0) + + return cls( + alphas=alphas, + betas=betas, + alphas_cumprod=alphas_cumprod, + ) + + +def get_sqrt_alpha_prod( + state: CommonSchedulerState, original_samples: jnp.ndarray, noise: jnp.ndarray, timesteps: jnp.ndarray +): + alphas_cumprod = state.alphas_cumprod + + sqrt_alpha_prod = alphas_cumprod[timesteps] ** 0.5 + sqrt_alpha_prod = sqrt_alpha_prod.flatten() + sqrt_alpha_prod = broadcast_to_shape_from_left(sqrt_alpha_prod, original_samples.shape) + + sqrt_one_minus_alpha_prod = (1 - alphas_cumprod[timesteps]) ** 0.5 + sqrt_one_minus_alpha_prod = sqrt_one_minus_alpha_prod.flatten() + sqrt_one_minus_alpha_prod = broadcast_to_shape_from_left(sqrt_one_minus_alpha_prod, original_samples.shape) + + return sqrt_alpha_prod, sqrt_one_minus_alpha_prod + + +def add_noise_common( + state: CommonSchedulerState, original_samples: jnp.ndarray, noise: jnp.ndarray, timesteps: jnp.ndarray +): + sqrt_alpha_prod, sqrt_one_minus_alpha_prod = get_sqrt_alpha_prod(state, original_samples, noise, timesteps) + noisy_samples = sqrt_alpha_prod * original_samples + sqrt_one_minus_alpha_prod * noise + return noisy_samples + + +def get_velocity_common(state: CommonSchedulerState, sample: jnp.ndarray, noise: jnp.ndarray, timesteps: jnp.ndarray): + sqrt_alpha_prod, sqrt_one_minus_alpha_prod = get_sqrt_alpha_prod(state, sample, noise, timesteps) + velocity = sqrt_alpha_prod * noise - sqrt_one_minus_alpha_prod * sample + return velocity diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_vq_diffusion.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_vq_diffusion.py new file mode 100644 index 0000000000000000000000000000000000000000..57306301d023defde8ace84c62bc0f0662ee91f7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/schedulers/scheduling_vq_diffusion.py @@ -0,0 +1,467 @@ +# Copyright 2025 Microsoft and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import numpy as np +import torch +import torch.nn.functional as F + +from ..configuration_utils import ConfigMixin, register_to_config +from ..utils import BaseOutput +from .scheduling_utils import SchedulerMixin + + +@dataclass +class VQDiffusionSchedulerOutput(BaseOutput): + """ + Output class for the scheduler's step function output. + + Args: + prev_sample (`torch.LongTensor` of shape `(batch size, num latent pixels)`): + Computed sample x_{t-1} of previous timestep. `prev_sample` should be used as next model input in the + denoising loop. + """ + + prev_sample: torch.LongTensor + + +def index_to_log_onehot(x: torch.LongTensor, num_classes: int) -> torch.Tensor: + """ + Convert batch of vector of class indices into batch of log onehot vectors + + Args: + x (`torch.LongTensor` of shape `(batch size, vector length)`): + Batch of class indices + + num_classes (`int`): + number of classes to be used for the onehot vectors + + Returns: + `torch.Tensor` of shape `(batch size, num classes, vector length)`: + Log onehot vectors + """ + x_onehot = F.one_hot(x, num_classes) + x_onehot = x_onehot.permute(0, 2, 1) + log_x = torch.log(x_onehot.float().clamp(min=1e-30)) + return log_x + + +def gumbel_noised(logits: torch.Tensor, generator: Optional[torch.Generator]) -> torch.Tensor: + """ + Apply gumbel noise to `logits` + """ + uniform = torch.rand(logits.shape, device=logits.device, generator=generator) + gumbel_noise = -torch.log(-torch.log(uniform + 1e-30) + 1e-30) + noised = gumbel_noise + logits + return noised + + +def alpha_schedules(num_diffusion_timesteps: int, alpha_cum_start=0.99999, alpha_cum_end=0.000009): + """ + Cumulative and non-cumulative alpha schedules. + + See section 4.1. + """ + att = ( + np.arange(0, num_diffusion_timesteps) / (num_diffusion_timesteps - 1) * (alpha_cum_end - alpha_cum_start) + + alpha_cum_start + ) + att = np.concatenate(([1], att)) + at = att[1:] / att[:-1] + att = np.concatenate((att[1:], [1])) + return at, att + + +def gamma_schedules(num_diffusion_timesteps: int, gamma_cum_start=0.000009, gamma_cum_end=0.99999): + """ + Cumulative and non-cumulative gamma schedules. + + See section 4.1. + """ + ctt = ( + np.arange(0, num_diffusion_timesteps) / (num_diffusion_timesteps - 1) * (gamma_cum_end - gamma_cum_start) + + gamma_cum_start + ) + ctt = np.concatenate(([0], ctt)) + one_minus_ctt = 1 - ctt + one_minus_ct = one_minus_ctt[1:] / one_minus_ctt[:-1] + ct = 1 - one_minus_ct + ctt = np.concatenate((ctt[1:], [0])) + return ct, ctt + + +class VQDiffusionScheduler(SchedulerMixin, ConfigMixin): + """ + A scheduler for vector quantized diffusion. + + This model inherits from [`SchedulerMixin`] and [`ConfigMixin`]. Check the superclass documentation for the generic + methods the library implements for all schedulers such as loading and saving. + + Args: + num_vec_classes (`int`): + The number of classes of the vector embeddings of the latent pixels. Includes the class for the masked + latent pixel. + num_train_timesteps (`int`, defaults to 100): + The number of diffusion steps to train the model. + alpha_cum_start (`float`, defaults to 0.99999): + The starting cumulative alpha value. + alpha_cum_end (`float`, defaults to 0.00009): + The ending cumulative alpha value. + gamma_cum_start (`float`, defaults to 0.00009): + The starting cumulative gamma value. + gamma_cum_end (`float`, defaults to 0.99999): + The ending cumulative gamma value. + """ + + order = 1 + + @register_to_config + def __init__( + self, + num_vec_classes: int, + num_train_timesteps: int = 100, + alpha_cum_start: float = 0.99999, + alpha_cum_end: float = 0.000009, + gamma_cum_start: float = 0.000009, + gamma_cum_end: float = 0.99999, + ): + self.num_embed = num_vec_classes + + # By convention, the index for the mask class is the last class index + self.mask_class = self.num_embed - 1 + + at, att = alpha_schedules(num_train_timesteps, alpha_cum_start=alpha_cum_start, alpha_cum_end=alpha_cum_end) + ct, ctt = gamma_schedules(num_train_timesteps, gamma_cum_start=gamma_cum_start, gamma_cum_end=gamma_cum_end) + + num_non_mask_classes = self.num_embed - 1 + bt = (1 - at - ct) / num_non_mask_classes + btt = (1 - att - ctt) / num_non_mask_classes + + at = torch.tensor(at.astype("float64")) + bt = torch.tensor(bt.astype("float64")) + ct = torch.tensor(ct.astype("float64")) + log_at = torch.log(at) + log_bt = torch.log(bt) + log_ct = torch.log(ct) + + att = torch.tensor(att.astype("float64")) + btt = torch.tensor(btt.astype("float64")) + ctt = torch.tensor(ctt.astype("float64")) + log_cumprod_at = torch.log(att) + log_cumprod_bt = torch.log(btt) + log_cumprod_ct = torch.log(ctt) + + self.log_at = log_at.float() + self.log_bt = log_bt.float() + self.log_ct = log_ct.float() + self.log_cumprod_at = log_cumprod_at.float() + self.log_cumprod_bt = log_cumprod_bt.float() + self.log_cumprod_ct = log_cumprod_ct.float() + + # setable values + self.num_inference_steps = None + self.timesteps = torch.from_numpy(np.arange(0, num_train_timesteps)[::-1].copy()) + + def set_timesteps(self, num_inference_steps: int, device: Union[str, torch.device] = None): + """ + Sets the discrete timesteps used for the diffusion chain (to be run before inference). + + Args: + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps and diffusion process parameters (alpha, beta, gamma) should be moved + to. + """ + self.num_inference_steps = num_inference_steps + timesteps = np.arange(0, self.num_inference_steps)[::-1].copy() + self.timesteps = torch.from_numpy(timesteps).to(device) + + self.log_at = self.log_at.to(device) + self.log_bt = self.log_bt.to(device) + self.log_ct = self.log_ct.to(device) + self.log_cumprod_at = self.log_cumprod_at.to(device) + self.log_cumprod_bt = self.log_cumprod_bt.to(device) + self.log_cumprod_ct = self.log_cumprod_ct.to(device) + + def step( + self, + model_output: torch.Tensor, + timestep: torch.long, + sample: torch.LongTensor, + generator: Optional[torch.Generator] = None, + return_dict: bool = True, + ) -> Union[VQDiffusionSchedulerOutput, Tuple]: + """ + Predict the sample from the previous timestep by the reverse transition distribution. See + [`~VQDiffusionScheduler.q_posterior`] for more details about how the distribution is computer. + + Args: + log_p_x_0: (`torch.Tensor` of shape `(batch size, num classes - 1, num latent pixels)`): + The log probabilities for the predicted classes of the initial latent pixels. Does not include a + prediction for the masked class as the initial unnoised image cannot be masked. + t (`torch.long`): + The timestep that determines which transition matrices are used. + x_t (`torch.LongTensor` of shape `(batch size, num latent pixels)`): + The classes of each latent pixel at time `t`. + generator (`torch.Generator`, or `None`): + A random number generator for the noise applied to `p(x_{t-1} | x_t)` before it is sampled from. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~schedulers.scheduling_vq_diffusion.VQDiffusionSchedulerOutput`] or + `tuple`. + + Returns: + [`~schedulers.scheduling_vq_diffusion.VQDiffusionSchedulerOutput`] or `tuple`: + If return_dict is `True`, [`~schedulers.scheduling_vq_diffusion.VQDiffusionSchedulerOutput`] is + returned, otherwise a tuple is returned where the first element is the sample tensor. + """ + if timestep == 0: + log_p_x_t_min_1 = model_output + else: + log_p_x_t_min_1 = self.q_posterior(model_output, sample, timestep) + + log_p_x_t_min_1 = gumbel_noised(log_p_x_t_min_1, generator) + + x_t_min_1 = log_p_x_t_min_1.argmax(dim=1) + + if not return_dict: + return (x_t_min_1,) + + return VQDiffusionSchedulerOutput(prev_sample=x_t_min_1) + + def q_posterior(self, log_p_x_0, x_t, t): + """ + Calculates the log probabilities for the predicted classes of the image at timestep `t-1`: + + ``` + p(x_{t-1} | x_t) = sum( q(x_t | x_{t-1}) * q(x_{t-1} | x_0) * p(x_0) / q(x_t | x_0) ) + ``` + + Args: + log_p_x_0 (`torch.Tensor` of shape `(batch size, num classes - 1, num latent pixels)`): + The log probabilities for the predicted classes of the initial latent pixels. Does not include a + prediction for the masked class as the initial unnoised image cannot be masked. + x_t (`torch.LongTensor` of shape `(batch size, num latent pixels)`): + The classes of each latent pixel at time `t`. + t (`torch.Long`): + The timestep that determines which transition matrix is used. + + Returns: + `torch.Tensor` of shape `(batch size, num classes, num latent pixels)`: + The log probabilities for the predicted classes of the image at timestep `t-1`. + """ + log_onehot_x_t = index_to_log_onehot(x_t, self.num_embed) + + log_q_x_t_given_x_0 = self.log_Q_t_transitioning_to_known_class( + t=t, x_t=x_t, log_onehot_x_t=log_onehot_x_t, cumulative=True + ) + + log_q_t_given_x_t_min_1 = self.log_Q_t_transitioning_to_known_class( + t=t, x_t=x_t, log_onehot_x_t=log_onehot_x_t, cumulative=False + ) + + # p_0(x_0=C_0 | x_t) / q(x_t | x_0=C_0) ... p_n(x_0=C_0 | x_t) / q(x_t | x_0=C_0) + # . . . + # . . . + # . . . + # p_0(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) ... p_n(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) + q = log_p_x_0 - log_q_x_t_given_x_0 + + # sum_0 = p_0(x_0=C_0 | x_t) / q(x_t | x_0=C_0) + ... + p_0(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}), ... , + # sum_n = p_n(x_0=C_0 | x_t) / q(x_t | x_0=C_0) + ... + p_n(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) + q_log_sum_exp = torch.logsumexp(q, dim=1, keepdim=True) + + # p_0(x_0=C_0 | x_t) / q(x_t | x_0=C_0) / sum_0 ... p_n(x_0=C_0 | x_t) / q(x_t | x_0=C_0) / sum_n + # . . . + # . . . + # . . . + # p_0(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) / sum_0 ... p_n(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) / sum_n + q = q - q_log_sum_exp + + # (p_0(x_0=C_0 | x_t) / q(x_t | x_0=C_0) / sum_0) * a_cumulative_{t-1} + b_cumulative_{t-1} ... (p_n(x_0=C_0 | x_t) / q(x_t | x_0=C_0) / sum_n) * a_cumulative_{t-1} + b_cumulative_{t-1} + # . . . + # . . . + # . . . + # (p_0(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) / sum_0) * a_cumulative_{t-1} + b_cumulative_{t-1} ... (p_n(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) / sum_n) * a_cumulative_{t-1} + b_cumulative_{t-1} + # c_cumulative_{t-1} ... c_cumulative_{t-1} + q = self.apply_cumulative_transitions(q, t - 1) + + # ((p_0(x_0=C_0 | x_t) / q(x_t | x_0=C_0) / sum_0) * a_cumulative_{t-1} + b_cumulative_{t-1}) * q(x_t | x_{t-1}=C_0) * sum_0 ... ((p_n(x_0=C_0 | x_t) / q(x_t | x_0=C_0) / sum_n) * a_cumulative_{t-1} + b_cumulative_{t-1}) * q(x_t | x_{t-1}=C_0) * sum_n + # . . . + # . . . + # . . . + # ((p_0(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) / sum_0) * a_cumulative_{t-1} + b_cumulative_{t-1}) * q(x_t | x_{t-1}=C_{k-1}) * sum_0 ... ((p_n(x_0=C_{k-1} | x_t) / q(x_t | x_0=C_{k-1}) / sum_n) * a_cumulative_{t-1} + b_cumulative_{t-1}) * q(x_t | x_{t-1}=C_{k-1}) * sum_n + # c_cumulative_{t-1} * q(x_t | x_{t-1}=C_k) * sum_0 ... c_cumulative_{t-1} * q(x_t | x_{t-1}=C_k) * sum_0 + log_p_x_t_min_1 = q + log_q_t_given_x_t_min_1 + q_log_sum_exp + + # For each column, there are two possible cases. + # + # Where: + # - sum(p_n(x_0))) is summing over all classes for x_0 + # - C_i is the class transitioning from (not to be confused with c_t and c_cumulative_t being used for gamma's) + # - C_j is the class transitioning to + # + # 1. x_t is masked i.e. x_t = c_k + # + # Simplifying the expression, the column vector is: + # . + # . + # . + # (c_t / c_cumulative_t) * (a_cumulative_{t-1} * p_n(x_0 = C_i | x_t) + b_cumulative_{t-1} * sum(p_n(x_0))) + # . + # . + # . + # (c_cumulative_{t-1} / c_cumulative_t) * sum(p_n(x_0)) + # + # From equation (11) stated in terms of forward probabilities, the last row is trivially verified. + # + # For the other rows, we can state the equation as ... + # + # (c_t / c_cumulative_t) * [b_cumulative_{t-1} * p(x_0=c_0) + ... + (a_cumulative_{t-1} + b_cumulative_{t-1}) * p(x_0=C_i) + ... + b_cumulative_{k-1} * p(x_0=c_{k-1})] + # + # This verifies the other rows. + # + # 2. x_t is not masked + # + # Simplifying the expression, there are two cases for the rows of the column vector, where C_j = C_i and where C_j != C_i: + # . + # . + # . + # C_j != C_i: b_t * ((b_cumulative_{t-1} / b_cumulative_t) * p_n(x_0 = c_0) + ... + ((a_cumulative_{t-1} + b_cumulative_{t-1}) / b_cumulative_t) * p_n(x_0 = C_i) + ... + (b_cumulative_{t-1} / (a_cumulative_t + b_cumulative_t)) * p_n(c_0=C_j) + ... + (b_cumulative_{t-1} / b_cumulative_t) * p_n(x_0 = c_{k-1})) + # . + # . + # . + # C_j = C_i: (a_t + b_t) * ((b_cumulative_{t-1} / b_cumulative_t) * p_n(x_0 = c_0) + ... + ((a_cumulative_{t-1} + b_cumulative_{t-1}) / (a_cumulative_t + b_cumulative_t)) * p_n(x_0 = C_i = C_j) + ... + (b_cumulative_{t-1} / b_cumulative_t) * p_n(x_0 = c_{k-1})) + # . + # . + # . + # 0 + # + # The last row is trivially verified. The other rows can be verified by directly expanding equation (11) stated in terms of forward probabilities. + return log_p_x_t_min_1 + + def log_Q_t_transitioning_to_known_class( + self, *, t: torch.int, x_t: torch.LongTensor, log_onehot_x_t: torch.Tensor, cumulative: bool + ): + """ + Calculates the log probabilities of the rows from the (cumulative or non-cumulative) transition matrix for each + latent pixel in `x_t`. + + Args: + t (`torch.Long`): + The timestep that determines which transition matrix is used. + x_t (`torch.LongTensor` of shape `(batch size, num latent pixels)`): + The classes of each latent pixel at time `t`. + log_onehot_x_t (`torch.Tensor` of shape `(batch size, num classes, num latent pixels)`): + The log one-hot vectors of `x_t`. + cumulative (`bool`): + If cumulative is `False`, the single step transition matrix `t-1`->`t` is used. If cumulative is + `True`, the cumulative transition matrix `0`->`t` is used. + + Returns: + `torch.Tensor` of shape `(batch size, num classes - 1, num latent pixels)`: + Each _column_ of the returned matrix is a _row_ of log probabilities of the complete probability + transition matrix. + + When non cumulative, returns `self.num_classes - 1` rows because the initial latent pixel cannot be + masked. + + Where: + - `q_n` is the probability distribution for the forward process of the `n`th latent pixel. + - C_0 is a class of a latent pixel embedding + - C_k is the class of the masked latent pixel + + non-cumulative result (omitting logarithms): + ``` + q_0(x_t | x_{t-1} = C_0) ... q_n(x_t | x_{t-1} = C_0) + . . . + . . . + . . . + q_0(x_t | x_{t-1} = C_k) ... q_n(x_t | x_{t-1} = C_k) + ``` + + cumulative result (omitting logarithms): + ``` + q_0_cumulative(x_t | x_0 = C_0) ... q_n_cumulative(x_t | x_0 = C_0) + . . . + . . . + . . . + q_0_cumulative(x_t | x_0 = C_{k-1}) ... q_n_cumulative(x_t | x_0 = C_{k-1}) + ``` + """ + if cumulative: + a = self.log_cumprod_at[t] + b = self.log_cumprod_bt[t] + c = self.log_cumprod_ct[t] + else: + a = self.log_at[t] + b = self.log_bt[t] + c = self.log_ct[t] + + if not cumulative: + # The values in the onehot vector can also be used as the logprobs for transitioning + # from masked latent pixels. If we are not calculating the cumulative transitions, + # we need to save these vectors to be re-appended to the final matrix so the values + # aren't overwritten. + # + # `P(x_t!=mask|x_{t-1=mask}) = 0` and 0 will be the value of the last row of the onehot vector + # if x_t is not masked + # + # `P(x_t=mask|x_{t-1=mask}) = 1` and 1 will be the value of the last row of the onehot vector + # if x_t is masked + log_onehot_x_t_transitioning_from_masked = log_onehot_x_t[:, -1, :].unsqueeze(1) + + # `index_to_log_onehot` will add onehot vectors for masked pixels, + # so the default one hot matrix has one too many rows. See the doc string + # for an explanation of the dimensionality of the returned matrix. + log_onehot_x_t = log_onehot_x_t[:, :-1, :] + + # this is a cheeky trick to produce the transition probabilities using log one-hot vectors. + # + # Don't worry about what values this sets in the columns that mark transitions + # to masked latent pixels. They are overwrote later with the `mask_class_mask`. + # + # Looking at the below logspace formula in non-logspace, each value will evaluate to either + # `1 * a + b = a + b` where `log_Q_t` has the one hot value in the column + # or + # `0 * a + b = b` where `log_Q_t` has the 0 values in the column. + # + # See equation 7 for more details. + log_Q_t = (log_onehot_x_t + a).logaddexp(b) + + # The whole column of each masked pixel is `c` + mask_class_mask = x_t == self.mask_class + mask_class_mask = mask_class_mask.unsqueeze(1).expand(-1, self.num_embed - 1, -1) + log_Q_t[mask_class_mask] = c + + if not cumulative: + log_Q_t = torch.cat((log_Q_t, log_onehot_x_t_transitioning_from_masked), dim=1) + + return log_Q_t + + def apply_cumulative_transitions(self, q, t): + bsz = q.shape[0] + a = self.log_cumprod_at[t] + b = self.log_cumprod_bt[t] + c = self.log_cumprod_ct[t] + + num_latent_pixels = q.shape[2] + c = c.expand(bsz, 1, num_latent_pixels) + + q = (q + a).logaddexp(b) + q = torch.cat((q, c), dim=1) + + return q diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/training_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/training_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..7a98fa3da14ac6c4cdbca327e5d787629d801f57 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/training_utils.py @@ -0,0 +1,730 @@ +import contextlib +import copy +import gc +import math +import random +import re +import warnings +from contextlib import contextmanager +from typing import Any, Dict, Iterable, List, Optional, Tuple, Union + +import numpy as np +import torch + +from .models import UNet2DConditionModel +from .pipelines import DiffusionPipeline +from .schedulers import SchedulerMixin +from .utils import ( + convert_state_dict_to_diffusers, + convert_state_dict_to_peft, + deprecate, + is_peft_available, + is_torch_npu_available, + is_torchvision_available, + is_transformers_available, +) + + +if is_transformers_available(): + import transformers + + if transformers.integrations.deepspeed.is_deepspeed_zero3_enabled(): + import deepspeed + +if is_peft_available(): + from peft import set_peft_model_state_dict + +if is_torchvision_available(): + from torchvision import transforms + +if is_torch_npu_available(): + import torch_npu # noqa: F401 + + +def set_seed(seed: int): + """ + Helper function for reproducible behavior to set the seed in `random`, `numpy`, `torch`. + + Args: + seed (`int`): The seed to set. + + Returns: + `None` + """ + random.seed(seed) + np.random.seed(seed) + torch.manual_seed(seed) + if is_torch_npu_available(): + torch.npu.manual_seed_all(seed) + else: + torch.cuda.manual_seed_all(seed) + # ^^ safe to call this function even if cuda is not available + + +def compute_snr(noise_scheduler, timesteps): + """ + Computes SNR as per + https://github.com/TiankaiHang/Min-SNR-Diffusion-Training/blob/521b624bd70c67cee4bdf49225915f5945a872e3/guided_diffusion/gaussian_diffusion.py#L847-L849 + for the given timesteps using the provided noise scheduler. + + Args: + noise_scheduler (`NoiseScheduler`): + An object containing the noise schedule parameters, specifically `alphas_cumprod`, which is used to compute + the SNR values. + timesteps (`torch.Tensor`): + A tensor of timesteps for which the SNR is computed. + + Returns: + `torch.Tensor`: A tensor containing the computed SNR values for each timestep. + """ + alphas_cumprod = noise_scheduler.alphas_cumprod + sqrt_alphas_cumprod = alphas_cumprod**0.5 + sqrt_one_minus_alphas_cumprod = (1.0 - alphas_cumprod) ** 0.5 + + # Expand the tensors. + # Adapted from https://github.com/TiankaiHang/Min-SNR-Diffusion-Training/blob/521b624bd70c67cee4bdf49225915f5945a872e3/guided_diffusion/gaussian_diffusion.py#L1026 + sqrt_alphas_cumprod = sqrt_alphas_cumprod.to(device=timesteps.device)[timesteps].float() + while len(sqrt_alphas_cumprod.shape) < len(timesteps.shape): + sqrt_alphas_cumprod = sqrt_alphas_cumprod[..., None] + alpha = sqrt_alphas_cumprod.expand(timesteps.shape) + + sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod.to(device=timesteps.device)[timesteps].float() + while len(sqrt_one_minus_alphas_cumprod.shape) < len(timesteps.shape): + sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod[..., None] + sigma = sqrt_one_minus_alphas_cumprod.expand(timesteps.shape) + + # Compute SNR. + snr = (alpha / sigma) ** 2 + return snr + + +def resolve_interpolation_mode(interpolation_type: str): + """ + Maps a string describing an interpolation function to the corresponding torchvision `InterpolationMode` enum. The + full list of supported enums is documented at + https://pytorch.org/vision/0.9/transforms.html#torchvision.transforms.functional.InterpolationMode. + + Args: + interpolation_type (`str`): + A string describing an interpolation method. Currently, `bilinear`, `bicubic`, `box`, `nearest`, + `nearest_exact`, `hamming`, and `lanczos` are supported, corresponding to the supported interpolation modes + in torchvision. + + Returns: + `torchvision.transforms.InterpolationMode`: an `InterpolationMode` enum used by torchvision's `resize` + transform. + """ + if not is_torchvision_available(): + raise ImportError( + "Please make sure to install `torchvision` to be able to use the `resolve_interpolation_mode()` function." + ) + + if interpolation_type == "bilinear": + interpolation_mode = transforms.InterpolationMode.BILINEAR + elif interpolation_type == "bicubic": + interpolation_mode = transforms.InterpolationMode.BICUBIC + elif interpolation_type == "box": + interpolation_mode = transforms.InterpolationMode.BOX + elif interpolation_type == "nearest": + interpolation_mode = transforms.InterpolationMode.NEAREST + elif interpolation_type == "nearest_exact": + interpolation_mode = transforms.InterpolationMode.NEAREST_EXACT + elif interpolation_type == "hamming": + interpolation_mode = transforms.InterpolationMode.HAMMING + elif interpolation_type == "lanczos": + interpolation_mode = transforms.InterpolationMode.LANCZOS + else: + raise ValueError( + f"The given interpolation mode {interpolation_type} is not supported. Currently supported interpolation" + f" modes are `bilinear`, `bicubic`, `box`, `nearest`, `nearest_exact`, `hamming`, and `lanczos`." + ) + + return interpolation_mode + + +def compute_dream_and_update_latents( + unet: UNet2DConditionModel, + noise_scheduler: SchedulerMixin, + timesteps: torch.Tensor, + noise: torch.Tensor, + noisy_latents: torch.Tensor, + target: torch.Tensor, + encoder_hidden_states: torch.Tensor, + dream_detail_preservation: float = 1.0, +) -> Tuple[Optional[torch.Tensor], Optional[torch.Tensor]]: + """ + Implements "DREAM (Diffusion Rectification and Estimation-Adaptive Models)" from + https://huggingface.co/papers/2312.00210. DREAM helps align training with sampling to help training be more + efficient and accurate at the cost of an extra forward step without gradients. + + Args: + `unet`: The state unet to use to make a prediction. + `noise_scheduler`: The noise scheduler used to add noise for the given timestep. + `timesteps`: The timesteps for the noise_scheduler to user. + `noise`: A tensor of noise in the shape of noisy_latents. + `noisy_latents`: Previously noise latents from the training loop. + `target`: The ground-truth tensor to predict after eps is removed. + `encoder_hidden_states`: Text embeddings from the text model. + `dream_detail_preservation`: A float value that indicates detail preservation level. + See reference. + + Returns: + `tuple[torch.Tensor, torch.Tensor]`: Adjusted noisy_latents and target. + """ + alphas_cumprod = noise_scheduler.alphas_cumprod.to(timesteps.device)[timesteps, None, None, None] + sqrt_one_minus_alphas_cumprod = (1.0 - alphas_cumprod) ** 0.5 + + # The paper uses lambda = sqrt(1 - alpha) ** p, with p = 1 in their experiments. + dream_lambda = sqrt_one_minus_alphas_cumprod**dream_detail_preservation + + pred = None + with torch.no_grad(): + pred = unet(noisy_latents, timesteps, encoder_hidden_states).sample + + _noisy_latents, _target = (None, None) + if noise_scheduler.config.prediction_type == "epsilon": + predicted_noise = pred + delta_noise = (noise - predicted_noise).detach() + delta_noise.mul_(dream_lambda) + _noisy_latents = noisy_latents.add(sqrt_one_minus_alphas_cumprod * delta_noise) + _target = target.add(delta_noise) + elif noise_scheduler.config.prediction_type == "v_prediction": + raise NotImplementedError("DREAM has not been implemented for v-prediction") + else: + raise ValueError(f"Unknown prediction type {noise_scheduler.config.prediction_type}") + + return _noisy_latents, _target + + +def unet_lora_state_dict(unet: UNet2DConditionModel) -> Dict[str, torch.Tensor]: + r""" + Returns: + A state dict containing just the LoRA parameters. + """ + lora_state_dict = {} + + for name, module in unet.named_modules(): + if hasattr(module, "set_lora_layer"): + lora_layer = getattr(module, "lora_layer") + if lora_layer is not None: + current_lora_layer_sd = lora_layer.state_dict() + for lora_layer_matrix_name, lora_param in current_lora_layer_sd.items(): + # The matrix name can either be "down" or "up". + lora_state_dict[f"{name}.lora.{lora_layer_matrix_name}"] = lora_param + + return lora_state_dict + + +def cast_training_params(model: Union[torch.nn.Module, List[torch.nn.Module]], dtype=torch.float32): + """ + Casts the training parameters of the model to the specified data type. + + Args: + model: The PyTorch model whose parameters will be cast. + dtype: The data type to which the model parameters will be cast. + """ + if not isinstance(model, list): + model = [model] + for m in model: + for param in m.parameters(): + # only upcast trainable parameters into fp32 + if param.requires_grad: + param.data = param.to(dtype) + + +def _set_state_dict_into_text_encoder( + lora_state_dict: Dict[str, torch.Tensor], prefix: str, text_encoder: torch.nn.Module +): + """ + Sets the `lora_state_dict` into `text_encoder` coming from `transformers`. + + Args: + lora_state_dict: The state dictionary to be set. + prefix: String identifier to retrieve the portion of the state dict that belongs to `text_encoder`. + text_encoder: Where the `lora_state_dict` is to be set. + """ + + text_encoder_state_dict = { + f"{k.replace(prefix, '')}": v for k, v in lora_state_dict.items() if k.startswith(prefix) + } + text_encoder_state_dict = convert_state_dict_to_peft(convert_state_dict_to_diffusers(text_encoder_state_dict)) + set_peft_model_state_dict(text_encoder, text_encoder_state_dict, adapter_name="default") + + +def _collate_lora_metadata(modules_to_save: Dict[str, torch.nn.Module]) -> Dict[str, Any]: + metadatas = {} + for module_name, module in modules_to_save.items(): + if module is not None: + metadatas[f"{module_name}_lora_adapter_metadata"] = module.peft_config["default"].to_dict() + return metadatas + + +def compute_density_for_timestep_sampling( + weighting_scheme: str, + batch_size: int, + logit_mean: float = None, + logit_std: float = None, + mode_scale: float = None, + device: Union[torch.device, str] = "cpu", + generator: Optional[torch.Generator] = None, +): + """ + Compute the density for sampling the timesteps when doing SD3 training. + + Courtesy: This was contributed by Rafie Walker in https://github.com/huggingface/diffusers/pull/8528. + + SD3 paper reference: https://huggingface.co/papers/2403.03206v1. + """ + if weighting_scheme == "logit_normal": + u = torch.normal(mean=logit_mean, std=logit_std, size=(batch_size,), device=device, generator=generator) + u = torch.nn.functional.sigmoid(u) + elif weighting_scheme == "mode": + u = torch.rand(size=(batch_size,), device=device, generator=generator) + u = 1 - u - mode_scale * (torch.cos(math.pi * u / 2) ** 2 - 1 + u) + else: + u = torch.rand(size=(batch_size,), device=device, generator=generator) + return u + + +def compute_loss_weighting_for_sd3(weighting_scheme: str, sigmas=None): + """ + Computes loss weighting scheme for SD3 training. + + Courtesy: This was contributed by Rafie Walker in https://github.com/huggingface/diffusers/pull/8528. + + SD3 paper reference: https://huggingface.co/papers/2403.03206v1. + """ + if weighting_scheme == "sigma_sqrt": + weighting = (sigmas**-2.0).float() + elif weighting_scheme == "cosmap": + bot = 1 - 2 * sigmas + 2 * sigmas**2 + weighting = 2 / (math.pi * bot) + else: + weighting = torch.ones_like(sigmas) + return weighting + + +def free_memory(): + """ + Runs garbage collection. Then clears the cache of the available accelerator. + """ + gc.collect() + + if torch.cuda.is_available(): + torch.cuda.empty_cache() + elif torch.backends.mps.is_available(): + torch.mps.empty_cache() + elif is_torch_npu_available(): + torch_npu.npu.empty_cache() + elif hasattr(torch, "xpu") and torch.xpu.is_available(): + torch.xpu.empty_cache() + + +@contextmanager +def offload_models( + *modules: Union[torch.nn.Module, DiffusionPipeline], device: Union[str, torch.device], offload: bool = True +): + """ + Context manager that, if offload=True, moves each module to `device` on enter, then moves it back to its original + device on exit. + + Args: + device (`str` or `torch.Device`): Device to move the `modules` to. + offload (`bool`): Flag to enable offloading. + """ + if offload: + is_model = not any(isinstance(m, DiffusionPipeline) for m in modules) + # record where each module was + if is_model: + original_devices = [next(m.parameters()).device for m in modules] + else: + assert len(modules) == 1 + # For DiffusionPipeline, wrap the device in a list to make it iterable + original_devices = [modules[0].device] + # move to target device + for m in modules: + m.to(device) + + try: + yield + finally: + if offload: + # move back to original devices + for m, orig_dev in zip(modules, original_devices): + m.to(orig_dev) + + +def parse_buckets_string(buckets_str): + """Parses a string defining buckets into a list of (height, width) tuples.""" + if not buckets_str: + raise ValueError("Bucket string cannot be empty.") + + bucket_pairs = buckets_str.strip().split(";") + parsed_buckets = [] + for pair_str in bucket_pairs: + match = re.match(r"^\s*(\d+)\s*,\s*(\d+)\s*$", pair_str) + if not match: + raise ValueError(f"Invalid bucket format: '{pair_str}'. Expected 'height,width'.") + try: + height = int(match.group(1)) + width = int(match.group(2)) + if height <= 0 or width <= 0: + raise ValueError("Bucket dimensions must be positive integers.") + if height % 8 != 0 or width % 8 != 0: + warnings.warn(f"Bucket dimension ({height},{width}) not divisible by 8. This might cause issues.") + parsed_buckets.append((height, width)) + except ValueError as e: + raise ValueError(f"Invalid integer in bucket pair '{pair_str}': {e}") from e + + if not parsed_buckets: + raise ValueError("No valid buckets found in the provided string.") + + return parsed_buckets + + +def find_nearest_bucket(h, w, bucket_options): + """Finds the closes bucket to the given height and width.""" + min_metric = float("inf") + best_bucket_idx = None + for bucket_idx, (bucket_h, bucket_w) in enumerate(bucket_options): + metric = abs(h * bucket_w - w * bucket_h) + if metric <= min_metric: + min_metric = metric + best_bucket_idx = bucket_idx + return best_bucket_idx + + +# Adapted from torch-ema https://github.com/fadel/pytorch_ema/blob/master/torch_ema/ema.py#L14 +class EMAModel: + """ + Exponential Moving Average of models weights + """ + + def __init__( + self, + parameters: Iterable[torch.nn.Parameter], + decay: float = 0.9999, + min_decay: float = 0.0, + update_after_step: int = 0, + use_ema_warmup: bool = False, + inv_gamma: Union[float, int] = 1.0, + power: Union[float, int] = 2 / 3, + foreach: bool = False, + model_cls: Optional[Any] = None, + model_config: Dict[str, Any] = None, + **kwargs, + ): + """ + Args: + parameters (Iterable[torch.nn.Parameter]): The parameters to track. + decay (float): The decay factor for the exponential moving average. + min_decay (float): The minimum decay factor for the exponential moving average. + update_after_step (int): The number of steps to wait before starting to update the EMA weights. + use_ema_warmup (bool): Whether to use EMA warmup. + inv_gamma (float): + Inverse multiplicative factor of EMA warmup. Default: 1. Only used if `use_ema_warmup` is True. + power (float): Exponential factor of EMA warmup. Default: 2/3. Only used if `use_ema_warmup` is True. + foreach (bool): Use torch._foreach functions for updating shadow parameters. Should be faster. + device (Optional[Union[str, torch.device]]): The device to store the EMA weights on. If None, the EMA + weights will be stored on CPU. + + @crowsonkb's notes on EMA Warmup: + If gamma=1 and power=1, implements a simple average. gamma=1, power=2/3 are good values for models you plan + to train for a million or more steps (reaches decay factor 0.999 at 31.6K steps, 0.9999 at 1M steps), + gamma=1, power=3/4 for models you plan to train for less (reaches decay factor 0.999 at 10K steps, 0.9999 + at 215.4k steps). + """ + + if isinstance(parameters, torch.nn.Module): + deprecation_message = ( + "Passing a `torch.nn.Module` to `ExponentialMovingAverage` is deprecated. " + "Please pass the parameters of the module instead." + ) + deprecate( + "passing a `torch.nn.Module` to `ExponentialMovingAverage`", + "1.0.0", + deprecation_message, + standard_warn=False, + ) + parameters = parameters.parameters() + + # set use_ema_warmup to True if a torch.nn.Module is passed for backwards compatibility + use_ema_warmup = True + + if kwargs.get("max_value", None) is not None: + deprecation_message = "The `max_value` argument is deprecated. Please use `decay` instead." + deprecate("max_value", "1.0.0", deprecation_message, standard_warn=False) + decay = kwargs["max_value"] + + if kwargs.get("min_value", None) is not None: + deprecation_message = "The `min_value` argument is deprecated. Please use `min_decay` instead." + deprecate("min_value", "1.0.0", deprecation_message, standard_warn=False) + min_decay = kwargs["min_value"] + + parameters = list(parameters) + self.shadow_params = [p.clone().detach() for p in parameters] + + if kwargs.get("device", None) is not None: + deprecation_message = "The `device` argument is deprecated. Please use `to` instead." + deprecate("device", "1.0.0", deprecation_message, standard_warn=False) + self.to(device=kwargs["device"]) + + self.temp_stored_params = None + + self.decay = decay + self.min_decay = min_decay + self.update_after_step = update_after_step + self.use_ema_warmup = use_ema_warmup + self.inv_gamma = inv_gamma + self.power = power + self.optimization_step = 0 + self.cur_decay_value = None # set in `step()` + self.foreach = foreach + + self.model_cls = model_cls + self.model_config = model_config + + @classmethod + def from_pretrained(cls, path, model_cls, foreach=False) -> "EMAModel": + _, ema_kwargs = model_cls.from_config(path, return_unused_kwargs=True) + model = model_cls.from_pretrained(path) + + ema_model = cls(model.parameters(), model_cls=model_cls, model_config=model.config, foreach=foreach) + + ema_model.load_state_dict(ema_kwargs) + return ema_model + + def save_pretrained(self, path): + if self.model_cls is None: + raise ValueError("`save_pretrained` can only be used if `model_cls` was defined at __init__.") + + if self.model_config is None: + raise ValueError("`save_pretrained` can only be used if `model_config` was defined at __init__.") + + model = self.model_cls.from_config(self.model_config) + state_dict = self.state_dict() + state_dict.pop("shadow_params", None) + + model.register_to_config(**state_dict) + self.copy_to(model.parameters()) + model.save_pretrained(path) + + def get_decay(self, optimization_step: int) -> float: + """ + Compute the decay factor for the exponential moving average. + """ + step = max(0, optimization_step - self.update_after_step - 1) + + if step <= 0: + return 0.0 + + if self.use_ema_warmup: + cur_decay_value = 1 - (1 + step / self.inv_gamma) ** -self.power + else: + cur_decay_value = (1 + step) / (10 + step) + + cur_decay_value = min(cur_decay_value, self.decay) + # make sure decay is not smaller than min_decay + cur_decay_value = max(cur_decay_value, self.min_decay) + return cur_decay_value + + @torch.no_grad() + def step(self, parameters: Iterable[torch.nn.Parameter]): + if isinstance(parameters, torch.nn.Module): + deprecation_message = ( + "Passing a `torch.nn.Module` to `ExponentialMovingAverage.step` is deprecated. " + "Please pass the parameters of the module instead." + ) + deprecate( + "passing a `torch.nn.Module` to `ExponentialMovingAverage.step`", + "1.0.0", + deprecation_message, + standard_warn=False, + ) + parameters = parameters.parameters() + + parameters = list(parameters) + + self.optimization_step += 1 + + # Compute the decay factor for the exponential moving average. + decay = self.get_decay(self.optimization_step) + self.cur_decay_value = decay + one_minus_decay = 1 - decay + + context_manager = contextlib.nullcontext() + + if self.foreach: + if is_transformers_available() and transformers.integrations.deepspeed.is_deepspeed_zero3_enabled(): + context_manager = deepspeed.zero.GatheredParameters(parameters, modifier_rank=None) + + with context_manager: + params_grad = [param for param in parameters if param.requires_grad] + s_params_grad = [ + s_param for s_param, param in zip(self.shadow_params, parameters) if param.requires_grad + ] + + if len(params_grad) < len(parameters): + torch._foreach_copy_( + [s_param for s_param, param in zip(self.shadow_params, parameters) if not param.requires_grad], + [param for param in parameters if not param.requires_grad], + non_blocking=True, + ) + + torch._foreach_sub_( + s_params_grad, torch._foreach_sub(s_params_grad, params_grad), alpha=one_minus_decay + ) + + else: + for s_param, param in zip(self.shadow_params, parameters): + if is_transformers_available() and transformers.integrations.deepspeed.is_deepspeed_zero3_enabled(): + context_manager = deepspeed.zero.GatheredParameters(param, modifier_rank=None) + + with context_manager: + if param.requires_grad: + s_param.sub_(one_minus_decay * (s_param - param)) + else: + s_param.copy_(param) + + def copy_to(self, parameters: Iterable[torch.nn.Parameter]) -> None: + """ + Copy current averaged parameters into given collection of parameters. + + Args: + parameters: Iterable of `torch.nn.Parameter`; the parameters to be + updated with the stored moving averages. If `None`, the parameters with which this + `ExponentialMovingAverage` was initialized will be used. + """ + parameters = list(parameters) + if self.foreach: + torch._foreach_copy_( + [param.data for param in parameters], + [s_param.to(param.device).data for s_param, param in zip(self.shadow_params, parameters)], + ) + else: + for s_param, param in zip(self.shadow_params, parameters): + param.data.copy_(s_param.to(param.device).data) + + def pin_memory(self) -> None: + r""" + Move internal buffers of the ExponentialMovingAverage to pinned memory. Useful for non-blocking transfers for + offloading EMA params to the host. + """ + + self.shadow_params = [p.pin_memory() for p in self.shadow_params] + + def to(self, device=None, dtype=None, non_blocking=False) -> None: + r""" + Move internal buffers of the ExponentialMovingAverage to `device`. + + Args: + device: like `device` argument to `torch.Tensor.to` + """ + # .to() on the tensors handles None correctly + self.shadow_params = [ + p.to(device=device, dtype=dtype, non_blocking=non_blocking) + if p.is_floating_point() + else p.to(device=device, non_blocking=non_blocking) + for p in self.shadow_params + ] + + def state_dict(self) -> dict: + r""" + Returns the state of the ExponentialMovingAverage as a dict. This method is used by accelerate during + checkpointing to save the ema state dict. + """ + # Following PyTorch conventions, references to tensors are returned: + # "returns a reference to the state and not its copy!" - + # https://pytorch.org/tutorials/beginner/saving_loading_models.html#what-is-a-state-dict + return { + "decay": self.decay, + "min_decay": self.min_decay, + "optimization_step": self.optimization_step, + "update_after_step": self.update_after_step, + "use_ema_warmup": self.use_ema_warmup, + "inv_gamma": self.inv_gamma, + "power": self.power, + "shadow_params": self.shadow_params, + } + + def store(self, parameters: Iterable[torch.nn.Parameter]) -> None: + r""" + Saves the current parameters for restoring later. + + Args: + parameters: Iterable of `torch.nn.Parameter`. The parameters to be temporarily stored. + """ + self.temp_stored_params = [param.detach().cpu().clone() for param in parameters] + + def restore(self, parameters: Iterable[torch.nn.Parameter]) -> None: + r""" + Restore the parameters stored with the `store` method. Useful to validate the model with EMA parameters + without: affecting the original optimization process. Store the parameters before the `copy_to()` method. After + validation (or model saving), use this to restore the former parameters. + + Args: + parameters: Iterable of `torch.nn.Parameter`; the parameters to be + updated with the stored parameters. If `None`, the parameters with which this + `ExponentialMovingAverage` was initialized will be used. + """ + + if self.temp_stored_params is None: + raise RuntimeError("This ExponentialMovingAverage has no `store()`ed weights to `restore()`") + if self.foreach: + torch._foreach_copy_( + [param.data for param in parameters], [c_param.data for c_param in self.temp_stored_params] + ) + else: + for c_param, param in zip(self.temp_stored_params, parameters): + param.data.copy_(c_param.data) + + # Better memory-wise. + self.temp_stored_params = None + + def load_state_dict(self, state_dict: dict) -> None: + r""" + Loads the ExponentialMovingAverage state. This method is used by accelerate during checkpointing to save the + ema state dict. + + Args: + state_dict (dict): EMA state. Should be an object returned + from a call to :meth:`state_dict`. + """ + # deepcopy, to be consistent with module API + state_dict = copy.deepcopy(state_dict) + + self.decay = state_dict.get("decay", self.decay) + if self.decay < 0.0 or self.decay > 1.0: + raise ValueError("Decay must be between 0 and 1") + + self.min_decay = state_dict.get("min_decay", self.min_decay) + if not isinstance(self.min_decay, float): + raise ValueError("Invalid min_decay") + + self.optimization_step = state_dict.get("optimization_step", self.optimization_step) + if not isinstance(self.optimization_step, int): + raise ValueError("Invalid optimization_step") + + self.update_after_step = state_dict.get("update_after_step", self.update_after_step) + if not isinstance(self.update_after_step, int): + raise ValueError("Invalid update_after_step") + + self.use_ema_warmup = state_dict.get("use_ema_warmup", self.use_ema_warmup) + if not isinstance(self.use_ema_warmup, bool): + raise ValueError("Invalid use_ema_warmup") + + self.inv_gamma = state_dict.get("inv_gamma", self.inv_gamma) + if not isinstance(self.inv_gamma, (float, int)): + raise ValueError("Invalid inv_gamma") + + self.power = state_dict.get("power", self.power) + if not isinstance(self.power, (float, int)): + raise ValueError("Invalid power") + + shadow_params = state_dict.get("shadow_params", None) + if shadow_params is not None: + self.shadow_params = shadow_params + if not isinstance(self.shadow_params, list): + raise ValueError("shadow_params must be a list") + if not all(isinstance(p, torch.Tensor) for p in self.shadow_params): + raise ValueError("shadow_params must all be Tensors") diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/__init__.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..6884d3be92923929feaf0b70ff68f31a9bed8780 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/__init__.py @@ -0,0 +1,168 @@ +# Copyright 2025 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +import os + +from packaging import version + +from .. import __version__ +from .constants import ( + CONFIG_NAME, + DEFAULT_HF_PARALLEL_LOADING_WORKERS, + DEPRECATED_REVISION_ARGS, + DIFFUSERS_DYNAMIC_MODULE_NAME, + FLAX_WEIGHTS_NAME, + GGUF_FILE_EXTENSION, + HF_ENABLE_PARALLEL_LOADING, + HF_MODULES_CACHE, + HUGGINGFACE_CO_RESOLVE_ENDPOINT, + MIN_PEFT_VERSION, + ONNX_EXTERNAL_WEIGHTS_NAME, + ONNX_WEIGHTS_NAME, + SAFE_WEIGHTS_INDEX_NAME, + SAFETENSORS_FILE_EXTENSION, + SAFETENSORS_WEIGHTS_NAME, + USE_PEFT_BACKEND, + WEIGHTS_INDEX_NAME, + WEIGHTS_NAME, +) +from .deprecation_utils import _maybe_remap_transformers_class, deprecate +from .doc_utils import replace_example_docstring +from .dynamic_modules_utils import get_class_from_dynamic_module +from .export_utils import export_to_gif, export_to_obj, export_to_ply, export_to_video +from .hub_utils import ( + PushToHubMixin, + _add_variant, + _get_checkpoint_shard_files, + _get_model_file, + extract_commit_hash, + http_user_agent, +) +from .import_utils import ( + BACKENDS_MAPPING, + DIFFUSERS_SLOW_IMPORT, + ENV_VARS_TRUE_AND_AUTO_VALUES, + ENV_VARS_TRUE_VALUES, + USE_JAX, + USE_TF, + USE_TORCH, + DummyObject, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_accelerate_available, + is_accelerate_version, + is_aiter_available, + is_aiter_version, + is_better_profanity_available, + is_bitsandbytes_available, + is_bitsandbytes_version, + is_bs4_available, + is_cosmos_guardrail_available, + is_flash_attn_3_available, + is_flash_attn_available, + is_flash_attn_version, + is_flax_available, + is_ftfy_available, + is_gguf_available, + is_gguf_version, + is_google_colab, + is_hf_hub_version, + is_hpu_available, + is_inflect_available, + is_invisible_watermark_available, + is_k_diffusion_available, + is_k_diffusion_version, + is_kernels_available, + is_kornia_available, + is_librosa_available, + is_matplotlib_available, + is_nltk_available, + is_note_seq_available, + is_nvidia_modelopt_available, + is_nvidia_modelopt_version, + is_onnx_available, + is_opencv_available, + is_optimum_quanto_available, + is_optimum_quanto_version, + is_peft_available, + is_peft_version, + is_pytorch_retinaface_available, + is_safetensors_available, + is_sageattention_available, + is_sageattention_version, + is_scipy_available, + is_sentencepiece_available, + is_tensorboard_available, + is_timm_available, + is_torch_available, + is_torch_mlu_available, + is_torch_npu_available, + is_torch_version, + is_torch_xla_available, + is_torch_xla_version, + is_torchao_available, + is_torchao_version, + is_torchsde_available, + is_torchvision_available, + is_transformers_available, + is_transformers_version, + is_unidecode_available, + is_wandb_available, + is_xformers_available, + is_xformers_version, + requires_backends, +) +from .loading_utils import get_module_from_name, get_submodule_by_name, load_image, load_video +from .logging import get_logger +from .outputs import BaseOutput +from .peft_utils import ( + check_peft_version, + delete_adapter_layers, + get_adapter_name, + get_peft_kwargs, + recurse_remove_peft_layers, + scale_lora_layers, + set_adapter_layers, + set_weights_and_activate_adapters, + unscale_lora_layers, +) +from .pil_utils import PIL_INTERPOLATION, make_image_grid, numpy_to_pil, pt_to_pil +from .remote_utils import remote_decode +from .state_dict_utils import ( + convert_all_state_dict_to_peft, + convert_state_dict_to_diffusers, + convert_state_dict_to_kohya, + convert_state_dict_to_peft, + convert_unet_state_dict_to_peft, + state_dict_all_zero, +) +from .typing_utils import _get_detailed_type, _is_valid_type + + +logger = get_logger(__name__) + + +def check_min_version(min_version): + if version.parse(__version__) < version.parse(min_version): + if "dev" in min_version: + error_message = ( + "This example requires a source install from HuggingFace diffusers (see " + "`https://huggingface.co/docs/diffusers/installation#install-from-source`)," + ) + else: + error_message = f"This example requires a minimum version of {min_version}," + error_message += f" but the version found is {__version__}.\n" + raise ImportError(error_message) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/accelerate_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/accelerate_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..af3b712b5a9ea71ace657c5189fb6ad9f10d8148 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/accelerate_utils.py @@ -0,0 +1,48 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Accelerate utilities: Utilities related to accelerate +""" + +from packaging import version + +from .import_utils import is_accelerate_available + + +if is_accelerate_available(): + import accelerate + + +def apply_forward_hook(method): + """ + Decorator that applies a registered CpuOffload hook to an arbitrary function rather than `forward`. This is useful + for cases where a PyTorch module provides functions other than `forward` that should trigger a move to the + appropriate acceleration device. This is the case for `encode` and `decode` in [`AutoencoderKL`]. + + This decorator looks inside the internal `_hf_hook` property to find a registered offload hook. + + :param method: The method to decorate. This method should be a method of a PyTorch module. + """ + if not is_accelerate_available(): + return method + accelerate_version = version.parse(accelerate.__version__).base_version + if version.parse(accelerate_version) < version.parse("0.17.0"): + return method + + def wrapper(self, *args, **kwargs): + if hasattr(self, "_hf_hook") and hasattr(self._hf_hook, "pre_forward"): + self._hf_hook.pre_forward(self) + return method(self, *args, **kwargs) + + return wrapper diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/constants.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/constants.py new file mode 100644 index 0000000000000000000000000000000000000000..c46fa43634835a963e707406068094f2d5379703 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/constants.py @@ -0,0 +1,75 @@ +# Copyright 2025 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +import importlib +import os + +from huggingface_hub.constants import HF_HOME +from packaging import version + +from ..dependency_versions_check import dep_version_check +from .import_utils import ENV_VARS_TRUE_VALUES, is_peft_available, is_transformers_available + + +MIN_PEFT_VERSION = "0.6.0" +MIN_TRANSFORMERS_VERSION = "4.34.0" +_CHECK_PEFT = os.environ.get("_CHECK_PEFT", "1") in ENV_VARS_TRUE_VALUES + + +CONFIG_NAME = "config.json" +WEIGHTS_NAME = "diffusion_pytorch_model.bin" +WEIGHTS_INDEX_NAME = "diffusion_pytorch_model.bin.index.json" +FLAX_WEIGHTS_NAME = "diffusion_flax_model.msgpack" +ONNX_WEIGHTS_NAME = "model.onnx" +SAFETENSORS_WEIGHTS_NAME = "diffusion_pytorch_model.safetensors" +SAFE_WEIGHTS_INDEX_NAME = "diffusion_pytorch_model.safetensors.index.json" +SAFETENSORS_FILE_EXTENSION = "safetensors" +GGUF_FILE_EXTENSION = "gguf" +ONNX_EXTERNAL_WEIGHTS_NAME = "weights.pb" +HUGGINGFACE_CO_RESOLVE_ENDPOINT = os.environ.get("HF_ENDPOINT", "https://huggingface.co") +DIFFUSERS_DYNAMIC_MODULE_NAME = "diffusers_modules" +HF_MODULES_CACHE = os.getenv("HF_MODULES_CACHE", os.path.join(HF_HOME, "modules")) +DEPRECATED_REVISION_ARGS = ["fp16", "non-ema"] +DIFFUSERS_REQUEST_TIMEOUT = 60 +DIFFUSERS_ATTN_BACKEND = os.getenv("DIFFUSERS_ATTN_BACKEND", "native") +DIFFUSERS_ATTN_CHECKS = os.getenv("DIFFUSERS_ATTN_CHECKS", "0").upper() in ENV_VARS_TRUE_VALUES +DEFAULT_HF_PARALLEL_LOADING_WORKERS = 8 +HF_ENABLE_PARALLEL_LOADING = os.environ.get("HF_ENABLE_PARALLEL_LOADING", "").upper() in ENV_VARS_TRUE_VALUES +DIFFUSERS_DISABLE_REMOTE_CODE = os.getenv("DIFFUSERS_DISABLE_REMOTE_CODE", "false").upper() in ENV_VARS_TRUE_VALUES + +# Below should be `True` if the current version of `peft` and `transformers` are compatible with +# PEFT backend. Will automatically fall back to PEFT backend if the correct versions of the libraries are +# available. +# For PEFT it is has to be greater than or equal to 0.6.0 and for transformers it has to be greater than or equal to 4.34.0. +_required_peft_version = is_peft_available() and version.parse( + version.parse(importlib.metadata.version("peft")).base_version +) >= version.parse(MIN_PEFT_VERSION) +_required_transformers_version = is_transformers_available() and version.parse( + version.parse(importlib.metadata.version("transformers")).base_version +) >= version.parse(MIN_TRANSFORMERS_VERSION) + +USE_PEFT_BACKEND = _required_peft_version and _required_transformers_version + +if USE_PEFT_BACKEND and _CHECK_PEFT: + dep_version_check("peft") + + +DECODE_ENDPOINT_SD_V1 = "https://q1bj3bpq6kzilnsu.us-east-1.aws.endpoints.huggingface.cloud/" +DECODE_ENDPOINT_SD_XL = "https://x2dmsqunjd6k9prw.us-east-1.aws.endpoints.huggingface.cloud/" +DECODE_ENDPOINT_FLUX = "https://whhx50ex1aryqvw6.us-east-1.aws.endpoints.huggingface.cloud/" +DECODE_ENDPOINT_HUNYUAN_VIDEO = "https://o7ywnmrahorts457.us-east-1.aws.endpoints.huggingface.cloud/" + + +ENCODE_ENDPOINT_SD_V1 = "https://qc6479g0aac6qwy9.us-east-1.aws.endpoints.huggingface.cloud/" +ENCODE_ENDPOINT_SD_XL = "https://xjqqhmyn62rog84g.us-east-1.aws.endpoints.huggingface.cloud/" +ENCODE_ENDPOINT_FLUX = "https://ptccx55jz97f9zgo.us-east-1.aws.endpoints.huggingface.cloud/" diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/deprecation_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/deprecation_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..d76623541b9f595046d6db56bc21620f77dc6ef0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/deprecation_utils.py @@ -0,0 +1,97 @@ +import inspect +import warnings +from typing import Any, Dict, Optional, Union + +from packaging import version + +from ..utils import logging + + +logger = logging.get_logger(__name__) + +# Mapping for deprecated Transformers classes to their replacements +# This is used to handle models that reference deprecated class names in their configs +# Reference: https://github.com/huggingface/transformers/issues/40822 +# Format: { +# "DeprecatedClassName": { +# "new_class": "NewClassName", +# "transformers_version": (">=", "5.0.0"), # (operation, version) tuple +# } +# } +_TRANSFORMERS_CLASS_REMAPPING = { + "CLIPFeatureExtractor": { + "new_class": "CLIPImageProcessor", + "transformers_version": (">", "4.57.0"), + }, +} + + +def _maybe_remap_transformers_class(class_name: str) -> Optional[str]: + """ + Check if a Transformers class should be remapped to a newer version. + + Args: + class_name: The name of the class to check + + Returns: + The new class name if remapping should occur, None otherwise + """ + if class_name not in _TRANSFORMERS_CLASS_REMAPPING: + return None + + from .import_utils import is_transformers_version + + mapping = _TRANSFORMERS_CLASS_REMAPPING[class_name] + operation, required_version = mapping["transformers_version"] + + # Only remap if the transformers version meets the requirement + if is_transformers_version(operation, required_version): + new_class = mapping["new_class"] + logger.warning(f"{class_name} appears to have been deprecated in transformers. Using {new_class} instead.") + return mapping["new_class"] + + return None + + +def deprecate(*args, take_from: Optional[Union[Dict, Any]] = None, standard_warn=True, stacklevel=2): + from .. import __version__ + + deprecated_kwargs = take_from + values = () + if not isinstance(args[0], tuple): + args = (args,) + + for attribute, version_name, message in args: + if version.parse(version.parse(__version__).base_version) >= version.parse(version_name): + raise ValueError( + f"The deprecation tuple {(attribute, version_name, message)} should be removed since diffusers'" + f" version {__version__} is >= {version_name}" + ) + + warning = None + if isinstance(deprecated_kwargs, dict) and attribute in deprecated_kwargs: + values += (deprecated_kwargs.pop(attribute),) + warning = f"The `{attribute}` argument is deprecated and will be removed in version {version_name}." + elif hasattr(deprecated_kwargs, attribute): + values += (getattr(deprecated_kwargs, attribute),) + warning = f"The `{attribute}` attribute is deprecated and will be removed in version {version_name}." + elif deprecated_kwargs is None: + warning = f"`{attribute}` is deprecated and will be removed in version {version_name}." + + if warning is not None: + warning = warning + " " if standard_warn else "" + warnings.warn(warning + message, FutureWarning, stacklevel=stacklevel) + + if isinstance(deprecated_kwargs, dict) and len(deprecated_kwargs) > 0: + call_frame = inspect.getouterframes(inspect.currentframe())[1] + filename = call_frame.filename + line_number = call_frame.lineno + function = call_frame.function + key, value = next(iter(deprecated_kwargs.items())) + raise TypeError(f"{function} in {filename} line {line_number - 1} got an unexpected keyword argument `{key}`") + + if len(values) == 0: + return + elif len(values) == 1: + return values[0] + return values diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/doc_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/doc_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..815083e1425801a5715da8ecd99af017427ff740 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/doc_utils.py @@ -0,0 +1,39 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Doc utilities: Utilities related to documentation +""" + +import re + + +def replace_example_docstring(example_docstring): + def docstring_decorator(fn): + func_doc = fn.__doc__ + lines = func_doc.split("\n") + i = 0 + while i < len(lines) and re.search(r"^\s*Examples?:\s*$", lines[i]) is None: + i += 1 + if i < len(lines): + lines[i] = example_docstring + func_doc = "\n".join(lines) + else: + raise ValueError( + f"The function {fn} should have an empty 'Examples:' in its docstring as placeholder, " + f"current docstring is:\n{func_doc}" + ) + fn.__doc__ = func_doc + return fn + + return docstring_decorator diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_bitsandbytes_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_bitsandbytes_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..2dc589428de960f9c46f5a22874e2ef6475c418c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_bitsandbytes_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class BitsAndBytesConfig(metaclass=DummyObject): + _backends = ["bitsandbytes"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["bitsandbytes"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["bitsandbytes"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["bitsandbytes"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_flax_and_transformers_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_flax_and_transformers_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..5e65e5349bb0a6a0bac62cddf0ce0fad64237c68 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_flax_and_transformers_objects.py @@ -0,0 +1,77 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class FlaxStableDiffusionControlNetPipeline(metaclass=DummyObject): + _backends = ["flax", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + +class FlaxStableDiffusionImg2ImgPipeline(metaclass=DummyObject): + _backends = ["flax", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + +class FlaxStableDiffusionInpaintPipeline(metaclass=DummyObject): + _backends = ["flax", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + +class FlaxStableDiffusionPipeline(metaclass=DummyObject): + _backends = ["flax", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + +class FlaxStableDiffusionXLPipeline(metaclass=DummyObject): + _backends = ["flax", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax", "transformers"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_flax_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_flax_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..5fa8dbc819316e96f7483addba43f90b9d8f397b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_flax_objects.py @@ -0,0 +1,212 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class FlaxControlNetModel(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxModelMixin(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxUNet2DConditionModel(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxAutoencoderKL(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxDiffusionPipeline(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxDDIMScheduler(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxDDPMScheduler(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxDPMSolverMultistepScheduler(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxEulerDiscreteScheduler(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxKarrasVeScheduler(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxLMSDiscreteScheduler(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxPNDMScheduler(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxSchedulerMixin(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + +class FlaxScoreSdeVeScheduler(metaclass=DummyObject): + _backends = ["flax"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["flax"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["flax"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_gguf_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_gguf_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..4a6d9a060a1397c5ef0e402e67170960bb3de516 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_gguf_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class GGUFQuantizationConfig(metaclass=DummyObject): + _backends = ["gguf"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["gguf"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["gguf"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["gguf"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_note_seq_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_note_seq_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..c02d0b015aedc37c01fb3b843bc79547aae5da68 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_note_seq_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class MidiProcessor(metaclass=DummyObject): + _backends = ["note_seq"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["note_seq"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["note_seq"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["note_seq"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_nvidia_modelopt_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_nvidia_modelopt_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..046b28223b3d4efd541cbe35d6596b746aecca5f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_nvidia_modelopt_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class NVIDIAModelOptConfig(metaclass=DummyObject): + _backends = ["nvidia_modelopt"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["nvidia_modelopt"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["nvidia_modelopt"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["nvidia_modelopt"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_onnx_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_onnx_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..bde5f6ad0793e2d81bc638600b46ff81748d09ee --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_onnx_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class OnnxRuntimeModel(metaclass=DummyObject): + _backends = ["onnx"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["onnx"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["onnx"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["onnx"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_optimum_quanto_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_optimum_quanto_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..44f8eaffc2460360d17720578b8224496f91cf94 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_optimum_quanto_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class QuantoConfig(metaclass=DummyObject): + _backends = ["optimum_quanto"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["optimum_quanto"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["optimum_quanto"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["optimum_quanto"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_pt_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_pt_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..f56a8b9325056293e7e07748a8be08947dd06b74 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_pt_objects.py @@ -0,0 +1,2660 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class AdaptiveProjectedGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AdaptiveProjectedMixGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class BaseGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ClassifierFreeGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ClassifierFreeZeroStarGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FrequencyDecoupledGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class PerturbedAttentionGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SkipLayerGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SmoothedEnergyGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class TangentialClassifierFreeGuidance(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FasterCacheConfig(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FirstBlockCacheConfig(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HookRegistry(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class LayerSkipConfig(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class PyramidAttentionBroadcastConfig(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SmoothedEnergyGuidanceConfig(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +def apply_faster_cache(*args, **kwargs): + requires_backends(apply_faster_cache, ["torch"]) + + +def apply_first_block_cache(*args, **kwargs): + requires_backends(apply_first_block_cache, ["torch"]) + + +def apply_layer_skip(*args, **kwargs): + requires_backends(apply_layer_skip, ["torch"]) + + +def apply_pyramid_attention_broadcast(*args, **kwargs): + requires_backends(apply_pyramid_attention_broadcast, ["torch"]) + + +class AllegroTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AsymmetricAutoencoderKL(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AttentionBackendName(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AuraFlowTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderDC(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKL(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLAllegro(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLCogVideoX(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLCosmos(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLHunyuanImage(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLHunyuanImageRefiner(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLHunyuanVideo(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLLTXVideo(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLMagvit(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLMochi(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLQwenImage(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLTemporalDecoder(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderKLWan(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderOobleck(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoencoderTiny(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class BriaFiboTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class BriaTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CacheMixin(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ChromaTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ChronoEditTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CogVideoXTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CogView3PlusTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CogView4Transformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ConsisIDTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ConsistencyDecoderVAE(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ContextParallelConfig(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ControlNetUnionModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ControlNetXSAdapter(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CosmosTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DiTTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class EasyAnimateTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FluxControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FluxMultiControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FluxTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HiDreamImageTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HunyuanDiT2DControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HunyuanDiT2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HunyuanDiT2DMultiControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HunyuanImageTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HunyuanVideoFramepackTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HunyuanVideoTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class I2VGenXLUNet(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class Kandinsky3UNet(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class Kandinsky5Transformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class LatteTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class LTXVideoTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class Lumina2Transformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class LuminaNextDiT2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class MochiTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ModelMixin(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class MotionAdapter(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class MultiAdapter(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class MultiControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class OmniGenTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ParallelConfig(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class PixArtTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class PriorTransformer(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class PRXTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class QwenImageControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class QwenImageMultiControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class QwenImageTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SanaControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SanaTransformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SanaVideoTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SD3ControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SD3MultiControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SD3Transformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SkyReelsV2Transformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SparseControlNetModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class StableAudioDiTModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class T2IAdapter(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class T5FilmDecoder(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class Transformer2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class TransformerTemporalModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UNet1DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UNet2DConditionModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UNet2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UNet3DConditionModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UNetControlNetXSModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UNetMotionModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UNetSpatioTemporalConditionModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UVit2DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class VQModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class WanAnimateTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class WanTransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class WanVACETransformer3DModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +def attention_backend(*args, **kwargs): + requires_backends(attention_backend, ["torch"]) + + +class ComponentsManager(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ComponentSpec(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ModularPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ModularPipelineBlocks(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +def get_constant_schedule(*args, **kwargs): + requires_backends(get_constant_schedule, ["torch"]) + + +def get_constant_schedule_with_warmup(*args, **kwargs): + requires_backends(get_constant_schedule_with_warmup, ["torch"]) + + +def get_cosine_schedule_with_warmup(*args, **kwargs): + requires_backends(get_cosine_schedule_with_warmup, ["torch"]) + + +def get_cosine_with_hard_restarts_schedule_with_warmup(*args, **kwargs): + requires_backends(get_cosine_with_hard_restarts_schedule_with_warmup, ["torch"]) + + +def get_linear_schedule_with_warmup(*args, **kwargs): + requires_backends(get_linear_schedule_with_warmup, ["torch"]) + + +def get_polynomial_decay_schedule_with_warmup(*args, **kwargs): + requires_backends(get_polynomial_decay_schedule_with_warmup, ["torch"]) + + +def get_scheduler(*args, **kwargs): + requires_backends(get_scheduler, ["torch"]) + + +class AudioPipelineOutput(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoPipelineForImage2Image(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoPipelineForInpainting(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AutoPipelineForText2Image(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class BlipDiffusionControlNetPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class BlipDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CLIPImageProjection(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ConsistencyModelPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DanceDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DDIMPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DDPMPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DiffusionPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DiTPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ImagePipelineOutput(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class KarrasVePipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class LDMPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class LDMSuperResolutionPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class PNDMPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class RePaintPipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ScoreSdeVePipeline(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class StableDiffusionMixin(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DiffusersQuantizer(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class AmusedScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CMStochasticIterativeScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CogVideoXDDIMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class CogVideoXDPMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DDIMInverseScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DDIMParallelScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DDIMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DDPMParallelScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DDPMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DDPMWuerstchenScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DEISMultistepScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DPMSolverMultistepInverseScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DPMSolverMultistepScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class DPMSolverSinglestepScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class EDMDPMSolverMultistepScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class EDMEulerScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class EulerAncestralDiscreteScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class EulerDiscreteScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FlowMatchEulerDiscreteScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FlowMatchHeunDiscreteScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class FlowMatchLCMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class HeunDiscreteScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class IPNDMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class KarrasVeScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class KDPM2AncestralDiscreteScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class KDPM2DiscreteScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class LCMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class PNDMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class RePaintScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SASolverScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SchedulerMixin(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class SCMScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class ScoreSdeVeScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class TCDScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UnCLIPScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class UniPCMultistepScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class VQDiffusionScheduler(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + +class EMAModel(metaclass=DummyObject): + _backends = ["torch"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_librosa_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_librosa_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..2088bc4a744198284f22fe54e6f1055cf3568566 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_librosa_objects.py @@ -0,0 +1,32 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class AudioDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "librosa"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "librosa"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "librosa"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "librosa"]) + + +class Mel(metaclass=DummyObject): + _backends = ["torch", "librosa"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "librosa"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "librosa"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "librosa"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_scipy_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_scipy_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..a1ff25863822b04971d2c6dfdc17f5b28774cf05 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_scipy_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class LMSDiscreteScheduler(metaclass=DummyObject): + _backends = ["torch", "scipy"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "scipy"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "scipy"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "scipy"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_torchsde_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_torchsde_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..6ff14231b9cc8c88effc4d11f7b439fa16bb7f20 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_torchsde_objects.py @@ -0,0 +1,32 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class CosineDPMSolverMultistepScheduler(metaclass=DummyObject): + _backends = ["torch", "torchsde"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "torchsde"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "torchsde"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "torchsde"]) + + +class DPMSolverSDEScheduler(metaclass=DummyObject): + _backends = ["torch", "torchsde"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "torchsde"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "torchsde"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "torchsde"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_k_diffusion_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_k_diffusion_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..2ab00c54ce2d7ca78f674085f0fe294d1f05c1e0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_k_diffusion_objects.py @@ -0,0 +1,32 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class StableDiffusionKDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "k_diffusion"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "k_diffusion"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "k_diffusion"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "k_diffusion"]) + + +class StableDiffusionXLKDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "k_diffusion"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "k_diffusion"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "k_diffusion"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "k_diffusion"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_onnx_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_onnx_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..b7afad8226b87292100270e3e7daad6885be0e7f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_onnx_objects.py @@ -0,0 +1,92 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class OnnxStableDiffusionImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "onnx"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "onnx"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + +class OnnxStableDiffusionInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "onnx"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "onnx"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + +class OnnxStableDiffusionInpaintPipelineLegacy(metaclass=DummyObject): + _backends = ["torch", "transformers", "onnx"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "onnx"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + +class OnnxStableDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "onnx"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "onnx"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + +class OnnxStableDiffusionUpscalePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "onnx"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "onnx"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + +class StableDiffusionOnnxPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "onnx"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "onnx"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "onnx"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_opencv_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_opencv_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..c0c4d9df5eeeca4cca0a5147058eba70f89bcbc2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_opencv_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class ConsisIDPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "opencv"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "opencv"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "opencv"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "opencv"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_sentencepiece_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_sentencepiece_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..349db10d1fa5b8505173e1578d3c83ea17e95fbc --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_and_sentencepiece_objects.py @@ -0,0 +1,47 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class KolorsImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "sentencepiece"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "sentencepiece"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "sentencepiece"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "sentencepiece"]) + + +class KolorsPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "sentencepiece"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "sentencepiece"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "sentencepiece"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "sentencepiece"]) + + +class KolorsPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers", "sentencepiece"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers", "sentencepiece"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "sentencepiece"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers", "sentencepiece"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..9eb123b94e9dbf91b5e2d05e877c7453c179ad73 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torch_and_transformers_objects.py @@ -0,0 +1,3647 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class FluxAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxKontextAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxKontextModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditPlusAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditPlusModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Wan22AutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AllegroPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AltDiffusionImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AltDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AmusedImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AmusedInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AmusedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffSDXLPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffSparseControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffVideoToVideoControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffVideoToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AudioLDM2Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AudioLDM2ProjectionModel(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AudioLDM2UNet2DConditionModel(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AudioLDMPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AuraFlowPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class BriaFiboPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class BriaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ChromaImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ChromaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ChronoEditPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CLIPImageProjection(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogVideoXFunControlPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogVideoXImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogVideoXPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogVideoXVideoToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogView3PlusPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogView4ControlPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogView4Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ConsisIDPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Cosmos2TextToImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Cosmos2VideoToWorldPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CosmosTextToWorldPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CosmosVideoToWorldPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CycleDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class EasyAnimateControlPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class EasyAnimateInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class EasyAnimatePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlNetImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlNetInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxFillPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxKontextInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxKontextPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxPriorReduxPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HiDreamImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanDiTControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanDiTPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanDiTPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanImageRefinerPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanSkyreelsImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanVideoFramepackPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanVideoImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class I2VGenXLPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFImg2ImgSuperResolutionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFInpaintingPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFInpaintingSuperResolutionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFSuperResolutionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ImageTextPipelineOutput(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Kandinsky3Img2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Kandinsky3Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Kandinsky5T2VPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyImg2ImgCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyInpaintCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyPriorPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22CombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22ControlnetImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22ControlnetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22Img2ImgCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22Img2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22InpaintCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22InpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22PriorEmb2EmbPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22PriorPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LatentConsistencyModelImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LatentConsistencyModelPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LattePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LDMTextToImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LEditsPPPipelineStableDiffusion(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LEditsPPPipelineStableDiffusionXL(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LTXConditionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LTXImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LTXLatentUpsamplePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LTXPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LucyEditPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Lumina2Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Lumina2Text2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LuminaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LuminaText2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MarigoldDepthPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MarigoldIntrinsicsPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MarigoldNormalsPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MochiPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MusicLDMPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class OmniGenPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PaintByExamplePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PIAPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PixArtAlphaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PixArtSigmaPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PixArtSigmaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PRXPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageControlNetInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditPlusPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ReduxImageEncoder(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaSprintImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaSprintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SemanticStableDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ShapEImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ShapEPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2DiffusionForcingImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2DiffusionForcingPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2DiffusionForcingVideoToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2ImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableAudioPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableAudioProjectionModel(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableCascadeCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableCascadeDecoderPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableCascadePriorPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3ControlNetInpaintingPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3ControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3Img2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3InpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3PAGImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3PAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionAdapterPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionAttendAndExcitePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetPAGInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetXSPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionDepth2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionDiffEditPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionGLIGENPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionGLIGENTextImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionImageVariationPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionInpaintPipelineLegacy(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionInstructPix2PixPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionLatentUpscalePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionLDM3DPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionModelEditingPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPAGImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPAGInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPanoramaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionParadigmsPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPipelineSafe(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPix2PixZeroPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionSAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionUpscalePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLAdapterPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetPAGImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetUnionImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetUnionInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetUnionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetXSPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLInstructPix2PixPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLPAGImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLPAGInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableUnCLIPImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableUnCLIPPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableVideoDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class TextToVideoSDPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class TextToVideoZeroPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class TextToVideoZeroSDXLPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UnCLIPImageVariationPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UnCLIPPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UniDiffuserModel(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UniDiffuserPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UniDiffuserTextDecoder(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VersatileDiffusionDualGuidedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VersatileDiffusionImageVariationPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VersatileDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VersatileDiffusionTextToImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VideoToVideoSDPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VisualClozeGenerationPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VisualClozePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VQDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanAnimatePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanVACEPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanVideoToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WuerstchenCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WuerstchenDecoderPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WuerstchenPriorPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torchao_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torchao_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..16f0f6a55f64099c73ce4d81af8c87053b833e44 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_torchao_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class TorchAoConfig(metaclass=DummyObject): + _backends = ["torchao"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torchao"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torchao"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torchao"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_transformers_and_torch_and_note_seq_objects.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_transformers_and_torch_and_note_seq_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..fbde04e33f0abd86d12f3dee048a4f0585c9f19d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dummy_transformers_and_torch_and_note_seq_objects.py @@ -0,0 +1,17 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class SpectrogramDiffusionPipeline(metaclass=DummyObject): + _backends = ["transformers", "torch", "note_seq"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["transformers", "torch", "note_seq"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["transformers", "torch", "note_seq"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["transformers", "torch", "note_seq"]) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dynamic_modules_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dynamic_modules_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..1c0734cf35bb36f8f7dba20c81a252b1e619ed58 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/dynamic_modules_utils.py @@ -0,0 +1,506 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Utilities to dynamically load objects from the Hub.""" + +import importlib +import inspect +import json +import os +import re +import shutil +import sys +import threading +from pathlib import Path +from types import ModuleType +from typing import Dict, Optional, Union +from urllib import request + +from huggingface_hub import hf_hub_download, model_info +from huggingface_hub.utils import RevisionNotFoundError, validate_hf_hub_args +from packaging import version + +from .. import __version__ +from . import DIFFUSERS_DYNAMIC_MODULE_NAME, HF_MODULES_CACHE, logging +from .constants import DIFFUSERS_DISABLE_REMOTE_CODE + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +# See https://huggingface.co/datasets/diffusers/community-pipelines-mirror +COMMUNITY_PIPELINES_MIRROR_ID = "diffusers/community-pipelines-mirror" +TIME_OUT_REMOTE_CODE = int(os.getenv("DIFFUSERS_TIMEOUT_REMOTE_CODE", 15)) +_HF_REMOTE_CODE_LOCK = threading.Lock() + + +def get_diffusers_versions(): + url = "https://pypi.org/pypi/diffusers/json" + releases = json.loads(request.urlopen(url).read())["releases"].keys() + return sorted(releases, key=lambda x: version.Version(x)) + + +def init_hf_modules(): + """ + Creates the cache directory for modules with an init, and adds it to the Python path. + """ + # This function has already been executed if HF_MODULES_CACHE already is in the Python path. + if HF_MODULES_CACHE in sys.path: + return + + sys.path.append(HF_MODULES_CACHE) + os.makedirs(HF_MODULES_CACHE, exist_ok=True) + init_path = Path(HF_MODULES_CACHE) / "__init__.py" + if not init_path.exists(): + init_path.touch() + + +def create_dynamic_module(name: Union[str, os.PathLike]): + """ + Creates a dynamic module in the cache directory for modules. + """ + init_hf_modules() + dynamic_module_path = Path(HF_MODULES_CACHE) / name + # If the parent module does not exist yet, recursively create it. + if not dynamic_module_path.parent.exists(): + create_dynamic_module(dynamic_module_path.parent) + os.makedirs(dynamic_module_path, exist_ok=True) + init_path = dynamic_module_path / "__init__.py" + if not init_path.exists(): + init_path.touch() + + +def get_relative_imports(module_file): + """ + Get the list of modules that are relatively imported in a module file. + + Args: + module_file (`str` or `os.PathLike`): The module file to inspect. + """ + with open(module_file, "r", encoding="utf-8") as f: + content = f.read() + + # Imports of the form `import .xxx` + relative_imports = re.findall(r"^\s*import\s+\.(\S+)\s*$", content, flags=re.MULTILINE) + # Imports of the form `from .xxx import yyy` + relative_imports += re.findall(r"^\s*from\s+\.(\S+)\s+import", content, flags=re.MULTILINE) + # Unique-ify + return list(set(relative_imports)) + + +def get_relative_import_files(module_file): + """ + Get the list of all files that are needed for a given module. Note that this function recurses through the relative + imports (if a imports b and b imports c, it will return module files for b and c). + + Args: + module_file (`str` or `os.PathLike`): The module file to inspect. + """ + no_change = False + files_to_check = [module_file] + all_relative_imports = [] + + # Let's recurse through all relative imports + while not no_change: + new_imports = [] + for f in files_to_check: + new_imports.extend(get_relative_imports(f)) + + module_path = Path(module_file).parent + new_import_files = [str(module_path / m) for m in new_imports] + new_import_files = [f for f in new_import_files if f not in all_relative_imports] + files_to_check = [f"{f}.py" for f in new_import_files] + + no_change = len(new_import_files) == 0 + all_relative_imports.extend(files_to_check) + + return all_relative_imports + + +def check_imports(filename): + """ + Check if the current Python environment contains all the libraries that are imported in a file. + """ + with open(filename, "r", encoding="utf-8") as f: + content = f.read() + + # Imports of the form `import xxx` + imports = re.findall(r"^\s*import\s+(\S+)\s*$", content, flags=re.MULTILINE) + # Imports of the form `from xxx import yyy` + imports += re.findall(r"^\s*from\s+(\S+)\s+import", content, flags=re.MULTILINE) + # Only keep the top-level module + imports = [imp.split(".")[0] for imp in imports if not imp.startswith(".")] + + # Unique-ify and test we got them all + imports = list(set(imports)) + missing_packages = [] + for imp in imports: + try: + importlib.import_module(imp) + except ImportError: + missing_packages.append(imp) + + if len(missing_packages) > 0: + logger.warning( + "This modeling file might require the following packages that were not found in your environment: " + f"{', '.join(missing_packages)}. Run `pip install {' '.join(missing_packages)}`" + ) + + return get_relative_imports(filename) + + +def resolve_trust_remote_code(trust_remote_code, model_name, has_remote_code): + trust_remote_code = trust_remote_code and not DIFFUSERS_DISABLE_REMOTE_CODE + if DIFFUSERS_DISABLE_REMOTE_CODE: + logger.warning( + "Downloading remote code is disabled globally via the DIFFUSERS_DISABLE_REMOTE_CODE environment variable. Ignoring `trust_remote_code`." + ) + + if has_remote_code and not trust_remote_code: + error_msg = f"The repository for {model_name} contains custom code. " + error_msg += ( + "Downloading remote code is disabled globally via the DIFFUSERS_DISABLE_REMOTE_CODE environment variable." + if DIFFUSERS_DISABLE_REMOTE_CODE + else "Pass `trust_remote_code=True` to allow loading remote code modules." + ) + raise ValueError(error_msg) + + elif has_remote_code and trust_remote_code: + logger.warning( + f"`trust_remote_code` is enabled. Downloading code from {model_name}. Please ensure you trust the contents of this repository" + ) + + return trust_remote_code + + +def get_class_in_module(class_name, module_path, force_reload=False): + """ + Import a module on the cache directory for modules and extract a class from it. + """ + name = os.path.normpath(module_path) + if name.endswith(".py"): + name = name[:-3] + name = name.replace(os.path.sep, ".") + module_file: Path = Path(HF_MODULES_CACHE) / module_path + + with _HF_REMOTE_CODE_LOCK: + if force_reload: + sys.modules.pop(name, None) + importlib.invalidate_caches() + cached_module: Optional[ModuleType] = sys.modules.get(name) + module_spec = importlib.util.spec_from_file_location(name, location=module_file) + + module: ModuleType + if cached_module is None: + module = importlib.util.module_from_spec(module_spec) + # insert it into sys.modules before any loading begins + sys.modules[name] = module + else: + module = cached_module + + module_spec.loader.exec_module(module) + + if class_name is None: + return find_pipeline_class(module) + + return getattr(module, class_name) + + +def find_pipeline_class(loaded_module): + """ + Retrieve pipeline class that inherits from `DiffusionPipeline`. Note that there has to be exactly one class + inheriting from `DiffusionPipeline`. + """ + from ..pipelines import DiffusionPipeline + + cls_members = dict(inspect.getmembers(loaded_module, inspect.isclass)) + + pipeline_class = None + for cls_name, cls in cls_members.items(): + if ( + cls_name != DiffusionPipeline.__name__ + and issubclass(cls, DiffusionPipeline) + and cls.__module__.split(".")[0] != "diffusers" + ): + if pipeline_class is not None: + raise ValueError( + f"Multiple classes that inherit from {DiffusionPipeline.__name__} have been found:" + f" {pipeline_class.__name__}, and {cls_name}. Please make sure to define only one in" + f" {loaded_module}." + ) + pipeline_class = cls + + return pipeline_class + + +@validate_hf_hub_args +def get_cached_module_file( + pretrained_model_name_or_path: Union[str, os.PathLike], + module_file: str, + subfolder: Optional[str] = None, + cache_dir: Optional[Union[str, os.PathLike]] = None, + force_download: bool = False, + proxies: Optional[Dict[str, str]] = None, + token: Optional[Union[bool, str]] = None, + revision: Optional[str] = None, + local_files_only: bool = False, + local_dir: Optional[str] = None, +): + """ + Prepares Downloads a module from a local folder or a distant repo and returns its path inside the cached + Transformers module. + + Args: + pretrained_model_name_or_path (`str` or `os.PathLike`): + This can be either: + + - a string, the *model id* of a pretrained model configuration hosted inside a model repo on + huggingface.co. Valid model ids can be located at the root-level, like `bert-base-uncased`, or namespaced + under a user or organization name, like `dbmdz/bert-base-german-cased`. + - a path to a *directory* containing a configuration file saved using the + [`~PreTrainedTokenizer.save_pretrained`] method, e.g., `./my_model_directory/`. + + module_file (`str`): + The name of the module file containing the class to look for. + cache_dir (`str` or `os.PathLike`, *optional*): + Path to a directory in which a downloaded pretrained model configuration should be cached if the standard + cache should not be used. + force_download (`bool`, *optional*, defaults to `False`): + Whether or not to force to (re-)download the configuration files and override the cached versions if they + exist. + proxies (`Dict[str, str]`, *optional*): + A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128', + 'http://hostname': 'foo.bar:4012'}.` The proxies are used on each request. + token (`str` or *bool*, *optional*): + The token to use as HTTP bearer authorization for remote files. If `True`, will use the token generated + when running `transformers-cli login` (stored in `~/.huggingface`). + revision (`str`, *optional*, defaults to `"main"`): + The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a + git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any + identifier allowed by git. + local_files_only (`bool`, *optional*, defaults to `False`): + If `True`, will only try to load the tokenizer configuration from local files. + + > [!TIP] > You may pass a token in `token` if you are not logged in (`hf auth login`) and want to use private or + [gated > models](https://huggingface.co/docs/hub/models-gated#gated-models). + + Returns: + `str`: The path to the module inside the cache. + """ + # Download and cache module_file from the repo `pretrained_model_name_or_path` of grab it if it's a local file. + pretrained_model_name_or_path = str(pretrained_model_name_or_path) + + module_file_or_url = os.path.join(pretrained_model_name_or_path, module_file) + + if os.path.isfile(module_file_or_url): + resolved_module_file = module_file_or_url + submodule = "local" + elif pretrained_model_name_or_path.count("/") == 0: + available_versions = get_diffusers_versions() + # cut ".dev0" + latest_version = "v" + ".".join(__version__.split(".")[:3]) + + # retrieve github version that matches + if revision is None: + revision = latest_version if latest_version[1:] in available_versions else "main" + logger.info(f"Defaulting to latest_version: {revision}.") + elif revision in available_versions: + revision = f"v{revision}" + elif revision == "main": + revision = revision + else: + raise ValueError( + f"`custom_revision`: {revision} does not exist. Please make sure to choose one of" + f" {', '.join(available_versions + ['main'])}." + ) + + try: + resolved_module_file = hf_hub_download( + repo_id=COMMUNITY_PIPELINES_MIRROR_ID, + repo_type="dataset", + filename=f"{revision}/{pretrained_model_name_or_path}.py", + cache_dir=cache_dir, + force_download=force_download, + proxies=proxies, + local_files_only=local_files_only, + local_dir=local_dir, + ) + submodule = "git" + module_file = pretrained_model_name_or_path + ".py" + except RevisionNotFoundError as e: + raise EnvironmentError( + f"Revision '{revision}' not found in the community pipelines mirror. Check available revisions on" + " https://huggingface.co/datasets/diffusers/community-pipelines-mirror/tree/main." + " If you don't find the revision you are looking for, please open an issue on https://github.com/huggingface/diffusers/issues." + ) from e + except EnvironmentError: + logger.error(f"Could not locate the {module_file} inside {pretrained_model_name_or_path}.") + raise + else: + try: + # Load from URL or cache if already cached + resolved_module_file = hf_hub_download( + pretrained_model_name_or_path, + module_file, + subfolder=subfolder, + cache_dir=cache_dir, + force_download=force_download, + proxies=proxies, + local_files_only=local_files_only, + local_dir=local_dir, + revision=revision, + token=token, + ) + submodule = os.path.join("local", "--".join(pretrained_model_name_or_path.split("/"))) + except EnvironmentError: + logger.error(f"Could not locate the {module_file} inside {pretrained_model_name_or_path}.") + raise + + # Check we have all the requirements in our environment + modules_needed = check_imports(resolved_module_file) + + # Now we move the module inside our cached dynamic modules. + full_submodule = DIFFUSERS_DYNAMIC_MODULE_NAME + os.path.sep + submodule + create_dynamic_module(full_submodule) + submodule_path = Path(HF_MODULES_CACHE) / full_submodule + if submodule == "local" or submodule == "git": + # We always copy local files (we could hash the file to see if there was a change, and give them the name of + # that hash, to only copy when there is a modification but it seems overkill for now). + # The only reason we do the copy is to avoid putting too many folders in sys.path. + shutil.copyfile(resolved_module_file, submodule_path / module_file) + for module_needed in modules_needed: + if len(module_needed.split(".")) == 2: + module_needed = "/".join(module_needed.split(".")) + module_folder = module_needed.split("/")[0] + if not os.path.exists(submodule_path / module_folder): + os.makedirs(submodule_path / module_folder) + module_needed = f"{module_needed}.py" + shutil.copyfile(os.path.join(pretrained_model_name_or_path, module_needed), submodule_path / module_needed) + else: + # Get the commit hash + # TODO: we will get this info in the etag soon, so retrieve it from there and not here. + commit_hash = model_info(pretrained_model_name_or_path, revision=revision, token=token).sha + + # The module file will end up being placed in a subfolder with the git hash of the repo. This way we get the + # benefit of versioning. + submodule_path = submodule_path / commit_hash + full_submodule = full_submodule + os.path.sep + commit_hash + create_dynamic_module(full_submodule) + + if not (submodule_path / module_file).exists(): + if len(module_file.split("/")) == 2: + module_folder = module_file.split("/")[0] + if not os.path.exists(submodule_path / module_folder): + os.makedirs(submodule_path / module_folder) + shutil.copyfile(resolved_module_file, submodule_path / module_file) + + # Make sure we also have every file with relative + for module_needed in modules_needed: + if len(module_needed.split(".")) == 2: + module_needed = "/".join(module_needed.split(".")) + if not (submodule_path / module_needed).exists(): + get_cached_module_file( + pretrained_model_name_or_path, + f"{module_needed}.py", + subfolder=subfolder, + cache_dir=cache_dir, + force_download=force_download, + proxies=proxies, + token=token, + revision=revision, + local_files_only=local_files_only, + local_dir=local_dir, + ) + return os.path.join(full_submodule, module_file) + + +@validate_hf_hub_args +def get_class_from_dynamic_module( + pretrained_model_name_or_path: Union[str, os.PathLike], + module_file: str, + subfolder: Optional[str] = None, + class_name: Optional[str] = None, + cache_dir: Optional[Union[str, os.PathLike]] = None, + force_download: bool = False, + proxies: Optional[Dict[str, str]] = None, + token: Optional[Union[bool, str]] = None, + revision: Optional[str] = None, + local_files_only: bool = False, + local_dir: Optional[str] = None, +): + """ + Extracts a class from a module file, present in the local folder or repository of a model. + + > [!WARNING] > Calling this function will execute the code in the module file found locally or downloaded from the + Hub. It should > therefore only be called on trusted repos. + + Args: + pretrained_model_name_or_path (`str` or `os.PathLike`): + This can be either: + + - a string, the *model id* of a pretrained model configuration hosted inside a model repo on + huggingface.co. Valid model ids can be located at the root-level, like `bert-base-uncased`, or namespaced + under a user or organization name, like `dbmdz/bert-base-german-cased`. + - a path to a *directory* containing a configuration file saved using the + [`~PreTrainedTokenizer.save_pretrained`] method, e.g., `./my_model_directory/`. + + module_file (`str`): + The name of the module file containing the class to look for. + class_name (`str`): + The name of the class to import in the module. + cache_dir (`str` or `os.PathLike`, *optional*): + Path to a directory in which a downloaded pretrained model configuration should be cached if the standard + cache should not be used. + force_download (`bool`, *optional*, defaults to `False`): + Whether or not to force to (re-)download the configuration files and override the cached versions if they + exist. + proxies (`Dict[str, str]`, *optional*): + A dictionary of proxy servers to use by protocol or endpoint, e.g., `{'http': 'foo.bar:3128', + 'http://hostname': 'foo.bar:4012'}.` The proxies are used on each request. + token (`str` or `bool`, *optional*): + The token to use as HTTP bearer authorization for remote files. If `True`, will use the token generated + when running `transformers-cli login` (stored in `~/.huggingface`). + revision (`str`, *optional*, defaults to `"main"`): + The specific model version to use. It can be a branch name, a tag name, or a commit id, since we use a + git-based system for storing models and other artifacts on huggingface.co, so `revision` can be any + identifier allowed by git. + local_files_only (`bool`, *optional*, defaults to `False`): + If `True`, will only try to load the tokenizer configuration from local files. + + > [!TIP] > You may pass a token in `token` if you are not logged in (`hf auth login`) and want to use private or + [gated > models](https://huggingface.co/docs/hub/models-gated#gated-models). + + Returns: + `type`: The class, dynamically imported from the module. + + Examples: + + ```python + # Download module `modeling.py` from huggingface.co and cache then extract the class `MyBertModel` from this + # module. + cls = get_class_from_dynamic_module("sgugger/my-bert-model", "modeling.py", "MyBertModel") + ```""" + # And lastly we get the class inside our newly created module + final_module = get_cached_module_file( + pretrained_model_name_or_path, + module_file, + subfolder=subfolder, + cache_dir=cache_dir, + force_download=force_download, + proxies=proxies, + token=token, + revision=revision, + local_files_only=local_files_only, + local_dir=local_dir, + ) + return get_class_in_module(class_name, final_module) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/export_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/export_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..07cf46928a44df0b27337e5d007c6a9bdb0e7c28 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/export_utils.py @@ -0,0 +1,209 @@ +import io +import random +import struct +import tempfile +from contextlib import contextmanager +from typing import List, Optional, Union + +import numpy as np +import PIL.Image +import PIL.ImageOps + +from .import_utils import BACKENDS_MAPPING, is_imageio_available, is_opencv_available +from .logging import get_logger + + +global_rng = random.Random() + +logger = get_logger(__name__) + + +@contextmanager +def buffered_writer(raw_f): + f = io.BufferedWriter(raw_f) + yield f + f.flush() + + +def export_to_gif(image: List[PIL.Image.Image], output_gif_path: str = None, fps: int = 10) -> str: + if output_gif_path is None: + output_gif_path = tempfile.NamedTemporaryFile(suffix=".gif").name + + image[0].save( + output_gif_path, + save_all=True, + append_images=image[1:], + optimize=False, + duration=1000 // fps, + loop=0, + ) + return output_gif_path + + +def export_to_ply(mesh, output_ply_path: str = None): + """ + Write a PLY file for a mesh. + """ + if output_ply_path is None: + output_ply_path = tempfile.NamedTemporaryFile(suffix=".ply").name + + coords = mesh.verts.detach().cpu().numpy() + faces = mesh.faces.cpu().numpy() + rgb = np.stack([mesh.vertex_channels[x].detach().cpu().numpy() for x in "RGB"], axis=1) + + with buffered_writer(open(output_ply_path, "wb")) as f: + f.write(b"ply\n") + f.write(b"format binary_little_endian 1.0\n") + f.write(bytes(f"element vertex {len(coords)}\n", "ascii")) + f.write(b"property float x\n") + f.write(b"property float y\n") + f.write(b"property float z\n") + if rgb is not None: + f.write(b"property uchar red\n") + f.write(b"property uchar green\n") + f.write(b"property uchar blue\n") + if faces is not None: + f.write(bytes(f"element face {len(faces)}\n", "ascii")) + f.write(b"property list uchar int vertex_index\n") + f.write(b"end_header\n") + + if rgb is not None: + rgb = (rgb * 255.499).round().astype(int) + vertices = [ + (*coord, *rgb) + for coord, rgb in zip( + coords.tolist(), + rgb.tolist(), + ) + ] + format = struct.Struct("<3f3B") + for item in vertices: + f.write(format.pack(*item)) + else: + format = struct.Struct("<3f") + for vertex in coords.tolist(): + f.write(format.pack(*vertex)) + + if faces is not None: + format = struct.Struct(" str: + """ + quality: + Video output quality. Default is 5. Uses variable bit rate. Highest quality is 10, lowest is 0. Set to None to + prevent variable bitrate flags to FFMPEG so you can manually specify them using output_params instead. + Specifying a fixed bitrate using `bitrate` disables this parameter. + + bitrate: + Set a constant bitrate for the video encoding. Default is None causing `quality` parameter to be used instead. + Better quality videos with smaller file sizes will result from using the `quality` variable bitrate parameter + rather than specifying a fixed bitrate with this parameter. + + macro_block_size: + Size constraint for video. Width and height, must be divisible by this number. If not divisible by this number + imageio will tell ffmpeg to scale the image up to the next closest size divisible by this number. Most codecs + are compatible with a macroblock size of 16 (default), some can go smaller (4, 8). To disable this automatic + feature set it to None or 1, however be warned many players can't decode videos that are odd in size and some + codecs will produce poor results or fail. See https://en.wikipedia.org/wiki/Macroblock. + """ + # TODO: Dhruv. Remove by Diffusers release 0.33.0 + # Added to prevent breaking existing code + if not is_imageio_available(): + logger.warning( + ( + "It is recommended to use `export_to_video` with `imageio` and `imageio-ffmpeg` as a backend. \n" + "These libraries are not present in your environment. Attempting to use legacy OpenCV backend to export video. \n" + "Support for the OpenCV backend will be deprecated in a future Diffusers version" + ) + ) + return _legacy_export_to_video(video_frames, output_video_path, fps) + + if is_imageio_available(): + import imageio + else: + raise ImportError(BACKENDS_MAPPING["imageio"][1].format("export_to_video")) + + try: + imageio.plugins.ffmpeg.get_exe() + except AttributeError: + raise AttributeError( + ( + "Found an existing imageio backend in your environment. Attempting to export video with imageio. \n" + "Unable to find a compatible ffmpeg installation in your environment to use with imageio. Please install via `pip install imageio-ffmpeg" + ) + ) + + if output_video_path is None: + output_video_path = tempfile.NamedTemporaryFile(suffix=".mp4").name + + if isinstance(video_frames[0], np.ndarray): + video_frames = [(frame * 255).astype(np.uint8) for frame in video_frames] + + elif isinstance(video_frames[0], PIL.Image.Image): + video_frames = [np.array(frame) for frame in video_frames] + + with imageio.get_writer( + output_video_path, fps=fps, quality=quality, bitrate=bitrate, macro_block_size=macro_block_size + ) as writer: + for frame in video_frames: + writer.append_data(frame) + + return output_video_path diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/hub_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/hub_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..d0b05c7d9541adc8026c396d040f10028e9bd64c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/hub_utils.py @@ -0,0 +1,574 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +import json +import os +import re +import sys +import tempfile +import warnings +from pathlib import Path +from typing import Dict, List, Optional, Union +from uuid import uuid4 + +from huggingface_hub import ( + DDUFEntry, + ModelCard, + ModelCardData, + create_repo, + hf_hub_download, + model_info, + snapshot_download, + upload_folder, +) +from huggingface_hub.constants import HF_HUB_DISABLE_TELEMETRY, HF_HUB_OFFLINE +from huggingface_hub.file_download import REGEX_COMMIT_HASH +from huggingface_hub.utils import ( + EntryNotFoundError, + HfHubHTTPError, + RepositoryNotFoundError, + RevisionNotFoundError, + is_jinja_available, + validate_hf_hub_args, +) +from packaging import version + +from .. import __version__ +from .constants import ( + DEPRECATED_REVISION_ARGS, + HUGGINGFACE_CO_RESOLVE_ENDPOINT, + SAFETENSORS_WEIGHTS_NAME, + WEIGHTS_NAME, +) +from .import_utils import ( + ENV_VARS_TRUE_VALUES, + _flax_version, + _jax_version, + _onnxruntime_version, + _torch_version, + is_flax_available, + is_onnx_available, + is_torch_available, +) +from .logging import get_logger + + +logger = get_logger(__name__) + +MODEL_CARD_TEMPLATE_PATH = Path(__file__).parent / "model_card_template.md" +SESSION_ID = uuid4().hex + + +def http_user_agent(user_agent: Union[Dict, str, None] = None) -> str: + """ + Formats a user-agent string with basic info about a request. + """ + ua = f"diffusers/{__version__}; python/{sys.version.split()[0]}; session_id/{SESSION_ID}" + if HF_HUB_DISABLE_TELEMETRY or HF_HUB_OFFLINE: + return ua + "; telemetry/off" + if is_torch_available(): + ua += f"; torch/{_torch_version}" + if is_flax_available(): + ua += f"; jax/{_jax_version}" + ua += f"; flax/{_flax_version}" + if is_onnx_available(): + ua += f"; onnxruntime/{_onnxruntime_version}" + # CI will set this value to True + if os.environ.get("DIFFUSERS_IS_CI", "").upper() in ENV_VARS_TRUE_VALUES: + ua += "; is_ci/true" + if isinstance(user_agent, dict): + ua += "; " + "; ".join(f"{k}/{v}" for k, v in user_agent.items()) + elif isinstance(user_agent, str): + ua += "; " + user_agent + return ua + + +def load_or_create_model_card( + repo_id_or_path: str = None, + token: Optional[str] = None, + is_pipeline: bool = False, + from_training: bool = False, + model_description: Optional[str] = None, + base_model: str = None, + prompt: Optional[str] = None, + license: Optional[str] = None, + widget: Optional[List[dict]] = None, + inference: Optional[bool] = None, +) -> ModelCard: + """ + Loads or creates a model card. + + Args: + repo_id_or_path (`str`): + The repo id (e.g., "stable-diffusion-v1-5/stable-diffusion-v1-5") or local path where to look for the model + card. + token (`str`, *optional*): + Authentication token. Will default to the stored token. See https://huggingface.co/settings/token for more + details. + is_pipeline (`bool`): + Boolean to indicate if we're adding tag to a [`DiffusionPipeline`]. + from_training: (`bool`): Boolean flag to denote if the model card is being created from a training script. + model_description (`str`, *optional*): Model description to add to the model card. Helpful when using + `load_or_create_model_card` from a training script. + base_model (`str`): Base model identifier (e.g., "stabilityai/stable-diffusion-xl-base-1.0"). Useful + for DreamBooth-like training. + prompt (`str`, *optional*): Prompt used for training. Useful for DreamBooth-like training. + license: (`str`, *optional*): License of the output artifact. Helpful when using + `load_or_create_model_card` from a training script. + widget (`List[dict]`, *optional*): Widget to accompany a gallery template. + inference: (`bool`, optional): Whether to turn on inference widget. Helpful when using + `load_or_create_model_card` from a training script. + """ + if not is_jinja_available(): + raise ValueError( + "Modelcard rendering is based on Jinja templates." + " Please make sure to have `jinja` installed before using `load_or_create_model_card`." + " To install it, please run `pip install Jinja2`." + ) + + try: + # Check if the model card is present on the remote repo + model_card = ModelCard.load(repo_id_or_path, token=token) + except (EntryNotFoundError, RepositoryNotFoundError): + # Otherwise create a model card from template + if from_training: + model_card = ModelCard.from_template( + card_data=ModelCardData( # Card metadata object that will be converted to YAML block + license=license, + library_name="diffusers", + inference=inference, + base_model=base_model, + instance_prompt=prompt, + widget=widget, + ), + template_path=MODEL_CARD_TEMPLATE_PATH, + model_description=model_description, + ) + else: + card_data = ModelCardData() + component = "pipeline" if is_pipeline else "model" + if model_description is None: + model_description = f"This is the model card of a 🧨 diffusers {component} that has been pushed on the Hub. This model card has been automatically generated." + model_card = ModelCard.from_template(card_data, model_description=model_description) + + return model_card + + +def populate_model_card(model_card: ModelCard, tags: Union[str, List[str]] = None) -> ModelCard: + """Populates the `model_card` with library name and optional tags.""" + if model_card.data.library_name is None: + model_card.data.library_name = "diffusers" + + if tags is not None: + if isinstance(tags, str): + tags = [tags] + if model_card.data.tags is None: + model_card.data.tags = [] + for tag in tags: + model_card.data.tags.append(tag) + + return model_card + + +def extract_commit_hash(resolved_file: Optional[str], commit_hash: Optional[str] = None): + """ + Extracts the commit hash from a resolved filename toward a cache file. + """ + if resolved_file is None or commit_hash is not None: + return commit_hash + resolved_file = str(Path(resolved_file).as_posix()) + search = re.search(r"snapshots/([^/]+)/", resolved_file) + if search is None: + return None + commit_hash = search.groups()[0] + return commit_hash if REGEX_COMMIT_HASH.match(commit_hash) else None + + +def _add_variant(weights_name: str, variant: Optional[str] = None) -> str: + if variant is not None: + splits = weights_name.split(".") + splits = splits[:-1] + [variant] + splits[-1:] + weights_name = ".".join(splits) + + return weights_name + + +@validate_hf_hub_args +def _get_model_file( + pretrained_model_name_or_path: Union[str, Path], + *, + weights_name: str, + subfolder: Optional[str] = None, + cache_dir: Optional[str] = None, + force_download: bool = False, + proxies: Optional[Dict] = None, + local_files_only: bool = False, + token: Optional[str] = None, + user_agent: Optional[Union[Dict, str]] = None, + revision: Optional[str] = None, + commit_hash: Optional[str] = None, + dduf_entries: Optional[Dict[str, DDUFEntry]] = None, +): + pretrained_model_name_or_path = str(pretrained_model_name_or_path) + + if dduf_entries: + if subfolder is not None: + raise ValueError( + "DDUF file only allow for 1 level of directory (e.g transformer/model1/model.safetentors is not allowed). " + "Please check the DDUF structure" + ) + model_file = ( + weights_name + if pretrained_model_name_or_path == "" + else "/".join([pretrained_model_name_or_path, weights_name]) + ) + if model_file in dduf_entries: + return model_file + else: + raise EnvironmentError(f"Error no file named {weights_name} found in archive {dduf_entries.keys()}.") + elif os.path.isfile(pretrained_model_name_or_path): + return pretrained_model_name_or_path + elif os.path.isdir(pretrained_model_name_or_path): + if os.path.isfile(os.path.join(pretrained_model_name_or_path, weights_name)): + # Load from a PyTorch checkpoint + model_file = os.path.join(pretrained_model_name_or_path, weights_name) + return model_file + elif subfolder is not None and os.path.isfile( + os.path.join(pretrained_model_name_or_path, subfolder, weights_name) + ): + model_file = os.path.join(pretrained_model_name_or_path, subfolder, weights_name) + return model_file + else: + raise EnvironmentError( + f"Error no file named {weights_name} found in directory {pretrained_model_name_or_path}." + ) + else: + # 1. First check if deprecated way of loading from branches is used + if ( + revision in DEPRECATED_REVISION_ARGS + and (weights_name == WEIGHTS_NAME or weights_name == SAFETENSORS_WEIGHTS_NAME) + and version.parse(version.parse(__version__).base_version) >= version.parse("0.22.0") + ): + try: + model_file = hf_hub_download( + pretrained_model_name_or_path, + filename=_add_variant(weights_name, revision), + cache_dir=cache_dir, + force_download=force_download, + proxies=proxies, + local_files_only=local_files_only, + token=token, + user_agent=user_agent, + subfolder=subfolder, + revision=revision or commit_hash, + ) + warnings.warn( + f"Loading the variant {revision} from {pretrained_model_name_or_path} via `revision='{revision}'` is deprecated. Loading instead from `revision='main'` with `variant={revision}`. Loading model variants via `revision='{revision}'` will be removed in diffusers v1. Please use `variant='{revision}'` instead.", + FutureWarning, + ) + return model_file + except: # noqa: E722 + warnings.warn( + f"You are loading the variant {revision} from {pretrained_model_name_or_path} via `revision='{revision}'`. This behavior is deprecated and will be removed in diffusers v1. One should use `variant='{revision}'` instead. However, it appears that {pretrained_model_name_or_path} currently does not have a {_add_variant(weights_name, revision)} file in the 'main' branch of {pretrained_model_name_or_path}. \n The Diffusers team and community would be very grateful if you could open an issue: https://github.com/huggingface/diffusers/issues/new with the title '{pretrained_model_name_or_path} is missing {_add_variant(weights_name, revision)}' so that the correct variant file can be added.", + FutureWarning, + ) + try: + # 2. Load model file as usual + model_file = hf_hub_download( + pretrained_model_name_or_path, + filename=weights_name, + cache_dir=cache_dir, + force_download=force_download, + proxies=proxies, + local_files_only=local_files_only, + token=token, + user_agent=user_agent, + subfolder=subfolder, + revision=revision or commit_hash, + ) + return model_file + + except RepositoryNotFoundError as e: + raise EnvironmentError( + f"{pretrained_model_name_or_path} is not a local folder and is not a valid model identifier " + "listed on 'https://huggingface.co/models'\nIf this is a private repository, make sure to pass a " + "token having permission to this repo with `token` or log in with `hf auth login`." + ) from e + except RevisionNotFoundError as e: + raise EnvironmentError( + f"{revision} is not a valid git identifier (branch name, tag name or commit id) that exists for " + "this model name. Check the model page at " + f"'https://huggingface.co/{pretrained_model_name_or_path}' for available revisions." + ) from e + except EntryNotFoundError as e: + raise EnvironmentError( + f"{pretrained_model_name_or_path} does not appear to have a file named {weights_name}." + ) from e + except HfHubHTTPError as e: + raise EnvironmentError( + f"There was a specific connection error when trying to load {pretrained_model_name_or_path}:\n{e}" + ) from e + except ValueError as e: + raise EnvironmentError( + f"We couldn't connect to '{HUGGINGFACE_CO_RESOLVE_ENDPOINT}' to load this model, couldn't find it" + f" in the cached files and it looks like {pretrained_model_name_or_path} is not the path to a" + f" directory containing a file named {weights_name} or" + " \nCheckout your internet connection or see how to run the library in" + " offline mode at 'https://huggingface.co/docs/diffusers/installation#offline-mode'." + ) from e + except EnvironmentError as e: + raise EnvironmentError( + f"Can't load the model for '{pretrained_model_name_or_path}'. If you were trying to load it from " + "'https://huggingface.co/models', make sure you don't have a local directory with the same name. " + f"Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a directory " + f"containing a file named {weights_name}" + ) from e + + +def _get_checkpoint_shard_files( + pretrained_model_name_or_path, + index_filename, + cache_dir=None, + proxies=None, + local_files_only=False, + token=None, + user_agent=None, + revision=None, + subfolder="", + dduf_entries: Optional[Dict[str, DDUFEntry]] = None, +): + """ + For a given model: + + - download and cache all the shards of a sharded checkpoint if `pretrained_model_name_or_path` is a model ID on the + Hub + - returns the list of paths to all the shards, as well as some metadata. + + For the description of each arg, see [`PreTrainedModel.from_pretrained`]. `index_filename` is the full path to the + index (downloaded and cached if `pretrained_model_name_or_path` is a model ID on the Hub). + """ + if dduf_entries: + if index_filename not in dduf_entries: + raise ValueError(f"Can't find a checkpoint index ({index_filename}) in {pretrained_model_name_or_path}.") + else: + if not os.path.isfile(index_filename): + raise ValueError(f"Can't find a checkpoint index ({index_filename}) in {pretrained_model_name_or_path}.") + + if dduf_entries: + index = json.loads(dduf_entries[index_filename].read_text()) + else: + with open(index_filename, "r") as f: + index = json.loads(f.read()) + + original_shard_filenames = sorted(set(index["weight_map"].values())) + sharded_metadata = index["metadata"] + sharded_metadata["all_checkpoint_keys"] = list(index["weight_map"].keys()) + sharded_metadata["weight_map"] = index["weight_map"].copy() + shards_path = os.path.join(pretrained_model_name_or_path, subfolder) + + # First, let's deal with local folder. + if os.path.isdir(pretrained_model_name_or_path) or dduf_entries: + shard_filenames = [os.path.join(shards_path, f) for f in original_shard_filenames] + for shard_file in shard_filenames: + if dduf_entries: + if shard_file not in dduf_entries: + raise FileNotFoundError( + f"{shards_path} does not appear to have a file named {shard_file} which is " + "required according to the checkpoint index." + ) + else: + if not os.path.exists(shard_file): + raise FileNotFoundError( + f"{shards_path} does not appear to have a file named {shard_file} which is " + "required according to the checkpoint index." + ) + return shard_filenames, sharded_metadata + + # At this stage pretrained_model_name_or_path is a model identifier on the Hub + allow_patterns = original_shard_filenames + if subfolder is not None: + allow_patterns = [os.path.join(subfolder, p) for p in allow_patterns] + + ignore_patterns = ["*.json", "*.md"] + + # If the repo doesn't have the required shards, error out early even before downloading anything. + if not local_files_only: + model_files_info = model_info(pretrained_model_name_or_path, revision=revision, token=token) + for shard_file in original_shard_filenames: + shard_file_present = any(shard_file in k.rfilename for k in model_files_info.siblings) + if not shard_file_present: + raise EnvironmentError( + f"{shards_path} does not appear to have a file named {shard_file} which is " + "required according to the checkpoint index." + ) + + try: + # Load from URL + cached_folder = snapshot_download( + pretrained_model_name_or_path, + cache_dir=cache_dir, + proxies=proxies, + local_files_only=local_files_only, + token=token, + revision=revision, + allow_patterns=allow_patterns, + ignore_patterns=ignore_patterns, + user_agent=user_agent, + ) + if subfolder is not None: + cached_folder = os.path.join(cached_folder, subfolder) + + # We have already dealt with RepositoryNotFoundError and RevisionNotFoundError when getting the index, so + # we don't have to catch them here. We have also dealt with EntryNotFoundError. + except HfHubHTTPError as e: + raise EnvironmentError( + f"We couldn't connect to '{HUGGINGFACE_CO_RESOLVE_ENDPOINT}' to load {pretrained_model_name_or_path}. You should try" + " again after checking your internet connection." + ) from e + + cached_filenames = [os.path.join(cached_folder, f) for f in original_shard_filenames] + for cached_file in cached_filenames: + if not os.path.isfile(cached_file): + raise EnvironmentError( + f"{cached_folder} does not have a file named {cached_file} which is required according to the checkpoint index." + ) + + return cached_filenames, sharded_metadata + + +def _check_legacy_sharding_variant_format(folder: str = None, filenames: List[str] = None, variant: str = None): + if filenames and folder: + raise ValueError("Both `filenames` and `folder` cannot be provided.") + if not filenames: + filenames = [] + for _, _, files in os.walk(folder): + for file in files: + filenames.append(os.path.basename(file)) + transformers_index_format = r"\d{5}-of-\d{5}" + variant_file_re = re.compile(rf".*-{transformers_index_format}\.{variant}\.[a-z]+$") + return any(variant_file_re.match(f) is not None for f in filenames) + + +class PushToHubMixin: + """ + A Mixin to push a model, scheduler, or pipeline to the Hugging Face Hub. + """ + + def _upload_folder( + self, + working_dir: Union[str, os.PathLike], + repo_id: str, + token: Optional[str] = None, + commit_message: Optional[str] = None, + create_pr: bool = False, + subfolder: Optional[str] = None, + ): + """ + Uploads all files in `working_dir` to `repo_id`. + """ + if commit_message is None: + if "Model" in self.__class__.__name__: + commit_message = "Upload model" + elif "Scheduler" in self.__class__.__name__: + commit_message = "Upload scheduler" + else: + commit_message = f"Upload {self.__class__.__name__}" + + logger.info(f"Uploading the files of {working_dir} to {repo_id}.") + return upload_folder( + repo_id=repo_id, + folder_path=working_dir, + token=token, + commit_message=commit_message, + create_pr=create_pr, + path_in_repo=subfolder, + ) + + def push_to_hub( + self, + repo_id: str, + commit_message: Optional[str] = None, + private: Optional[bool] = None, + token: Optional[str] = None, + create_pr: bool = False, + safe_serialization: bool = True, + variant: Optional[str] = None, + subfolder: Optional[str] = None, + ) -> str: + """ + Upload model, scheduler, or pipeline files to the 🤗 Hugging Face Hub. + + Parameters: + repo_id (`str`): + The name of the repository you want to push your model, scheduler, or pipeline files to. It should + contain your organization name when pushing to an organization. `repo_id` can also be a path to a local + directory. + commit_message (`str`, *optional*): + Message to commit while pushing. Default to `"Upload {object}"`. + private (`bool`, *optional*): + Whether to make the repo private. If `None` (default), the repo will be public unless the + organization's default is private. This value is ignored if the repo already exists. + token (`str`, *optional*): + The token to use as HTTP bearer authorization for remote files. The token generated when running `hf + auth login` (stored in `~/.huggingface`). + create_pr (`bool`, *optional*, defaults to `False`): + Whether or not to create a PR with the uploaded files or directly commit. + safe_serialization (`bool`, *optional*, defaults to `True`): + Whether or not to convert the model weights to the `safetensors` format. + variant (`str`, *optional*): + If specified, weights are saved in the format `pytorch_model..bin`. + + Examples: + + ```python + from diffusers import UNet2DConditionModel + + unet = UNet2DConditionModel.from_pretrained("stabilityai/stable-diffusion-2", subfolder="unet") + + # Push the `unet` to your namespace with the name "my-finetuned-unet". + unet.push_to_hub("my-finetuned-unet") + + # Push the `unet` to an organization with the name "my-finetuned-unet". + unet.push_to_hub("your-org/my-finetuned-unet") + ``` + """ + repo_id = create_repo(repo_id, private=private, token=token, exist_ok=True).repo_id + + # Create a new empty model card and eventually tag it + if not subfolder: + model_card = load_or_create_model_card(repo_id, token=token) + model_card = populate_model_card(model_card) + + # Save all files. + save_kwargs = {"safe_serialization": safe_serialization} + if "Scheduler" not in self.__class__.__name__: + save_kwargs.update({"variant": variant}) + + with tempfile.TemporaryDirectory() as tmpdir: + self.save_pretrained(tmpdir, **save_kwargs) + + # Update model card if needed: + if not subfolder: + model_card.save(os.path.join(tmpdir, "README.md")) + + return self._upload_folder( + tmpdir, + repo_id, + token=token, + commit_message=commit_message, + create_pr=create_pr, + subfolder=subfolder, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/import_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/import_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..57b0a337922a9e243b660beae0678a06d02b8ac9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/import_utils.py @@ -0,0 +1,1024 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Import utilities: Utilities related to imports and our lazy inits. +""" + +import importlib.util +import inspect +import operator as op +import os +import sys +from collections import OrderedDict, defaultdict +from functools import lru_cache as cache +from itertools import chain +from types import ModuleType +from typing import Any, Tuple, Union + +from huggingface_hub.utils import is_jinja_available # noqa: F401 +from packaging.version import Version, parse + +from . import logging + + +# The package importlib_metadata is in a different place, depending on the python version. +if sys.version_info < (3, 8): + import importlib_metadata +else: + import importlib.metadata as importlib_metadata +try: + _package_map = importlib_metadata.packages_distributions() # load-once to avoid expensive calls +except Exception: + _package_map = None + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +ENV_VARS_TRUE_VALUES = {"1", "ON", "YES", "TRUE"} +ENV_VARS_TRUE_AND_AUTO_VALUES = ENV_VARS_TRUE_VALUES.union({"AUTO"}) + +USE_TF = os.environ.get("USE_TF", "AUTO").upper() +USE_TORCH = os.environ.get("USE_TORCH", "AUTO").upper() +USE_JAX = os.environ.get("USE_FLAX", "AUTO").upper() +USE_SAFETENSORS = os.environ.get("USE_SAFETENSORS", "AUTO").upper() +DIFFUSERS_SLOW_IMPORT = os.environ.get("DIFFUSERS_SLOW_IMPORT", "FALSE").upper() +DIFFUSERS_SLOW_IMPORT = DIFFUSERS_SLOW_IMPORT in ENV_VARS_TRUE_VALUES + +STR_OPERATION_TO_FUNC = {">": op.gt, ">=": op.ge, "==": op.eq, "!=": op.ne, "<=": op.le, "<": op.lt} + +_is_google_colab = "google.colab" in sys.modules or any(k.startswith("COLAB_") for k in os.environ) + + +def _is_package_available(pkg_name: str, get_dist_name: bool = False) -> Tuple[bool, str]: + global _package_map + pkg_exists = importlib.util.find_spec(pkg_name) is not None + pkg_version = "N/A" + + if pkg_exists: + if _package_map is None: + _package_map = defaultdict(list) + try: + # Fallback for Python < 3.10 + for dist in importlib_metadata.distributions(): + _top_level_declared = (dist.read_text("top_level.txt") or "").split() + # Infer top-level package names from file structure + _inferred_opt_names = { + f.parts[0] if len(f.parts) > 1 else inspect.getmodulename(f) for f in (dist.files or []) + } - {None} + _top_level_inferred = filter(lambda name: "." not in name, _inferred_opt_names) + for pkg in _top_level_declared or _top_level_inferred: + _package_map[pkg].append(dist.metadata["Name"]) + except Exception as _: + pass + try: + if get_dist_name and pkg_name in _package_map and _package_map[pkg_name]: + if len(_package_map[pkg_name]) > 1: + logger.warning( + f"Multiple distributions found for package {pkg_name}. Picked distribution: {_package_map[pkg_name][0]}" + ) + pkg_name = _package_map[pkg_name][0] + pkg_version = importlib_metadata.version(pkg_name) + logger.debug(f"Successfully imported {pkg_name} version {pkg_version}") + except (ImportError, importlib_metadata.PackageNotFoundError): + pkg_exists = False + + return pkg_exists, pkg_version + + +if USE_TORCH in ENV_VARS_TRUE_AND_AUTO_VALUES and USE_TF not in ENV_VARS_TRUE_VALUES: + _torch_available, _torch_version = _is_package_available("torch") + +else: + logger.info("Disabling PyTorch because USE_TORCH is set") + _torch_available = False + _torch_version = "N/A" + +_jax_version = "N/A" +_flax_version = "N/A" +if USE_JAX in ENV_VARS_TRUE_AND_AUTO_VALUES: + _flax_available = importlib.util.find_spec("jax") is not None and importlib.util.find_spec("flax") is not None + if _flax_available: + try: + _jax_version = importlib_metadata.version("jax") + _flax_version = importlib_metadata.version("flax") + logger.info(f"JAX version {_jax_version}, Flax version {_flax_version} available.") + except importlib_metadata.PackageNotFoundError: + _flax_available = False +else: + _flax_available = False + +if USE_SAFETENSORS in ENV_VARS_TRUE_AND_AUTO_VALUES: + _safetensors_available, _safetensors_version = _is_package_available("safetensors") + +else: + logger.info("Disabling Safetensors because USE_SAFETENSORS is set") + _safetensors_available = False + +_onnxruntime_version = "N/A" +_onnx_available = importlib.util.find_spec("onnxruntime") is not None +if _onnx_available: + candidates = ( + "onnxruntime", + "onnxruntime-cann", + "onnxruntime-directml", + "ort_nightly_directml", + "onnxruntime-gpu", + "ort_nightly_gpu", + "onnxruntime-migraphx", + "onnxruntime-openvino", + "onnxruntime-qnn", + "onnxruntime-rocm", + "onnxruntime-training", + "onnxruntime-vitisai", + ) + _onnxruntime_version = None + # For the metadata, we have to look for both onnxruntime and onnxruntime-x + for pkg in candidates: + try: + _onnxruntime_version = importlib_metadata.version(pkg) + break + except importlib_metadata.PackageNotFoundError: + pass + _onnx_available = _onnxruntime_version is not None + if _onnx_available: + logger.debug(f"Successfully imported onnxruntime version {_onnxruntime_version}") + +# (sayakpaul): importlib.util.find_spec("opencv-python") returns None even when it's installed. +# _opencv_available = importlib.util.find_spec("opencv-python") is not None +try: + candidates = ( + "opencv-python", + "opencv-contrib-python", + "opencv-python-headless", + "opencv-contrib-python-headless", + ) + _opencv_version = None + for pkg in candidates: + try: + _opencv_version = importlib_metadata.version(pkg) + break + except importlib_metadata.PackageNotFoundError: + pass + _opencv_available = _opencv_version is not None + if _opencv_available: + logger.debug(f"Successfully imported cv2 version {_opencv_version}") +except importlib_metadata.PackageNotFoundError: + _opencv_available = False + +_bs4_available = importlib.util.find_spec("bs4") is not None +try: + # importlib metadata under different name + _bs4_version = importlib_metadata.version("beautifulsoup4") + logger.debug(f"Successfully imported ftfy version {_bs4_version}") +except importlib_metadata.PackageNotFoundError: + _bs4_available = False + +_invisible_watermark_available = importlib.util.find_spec("imwatermark") is not None +try: + _invisible_watermark_version = importlib_metadata.version("invisible-watermark") + logger.debug(f"Successfully imported invisible-watermark version {_invisible_watermark_version}") +except importlib_metadata.PackageNotFoundError: + _invisible_watermark_available = False + +_torch_xla_available, _torch_xla_version = _is_package_available("torch_xla") +_torch_npu_available, _torch_npu_version = _is_package_available("torch_npu") +_torch_mlu_available, _torch_mlu_version = _is_package_available("torch_mlu") +_transformers_available, _transformers_version = _is_package_available("transformers") +_hf_hub_available, _hf_hub_version = _is_package_available("huggingface_hub") +_kernels_available, _kernels_version = _is_package_available("kernels") +_inflect_available, _inflect_version = _is_package_available("inflect") +_unidecode_available, _unidecode_version = _is_package_available("unidecode") +_k_diffusion_available, _k_diffusion_version = _is_package_available("k_diffusion") +_note_seq_available, _note_seq_version = _is_package_available("note_seq") +_wandb_available, _wandb_version = _is_package_available("wandb") +_tensorboard_available, _tensorboard_version = _is_package_available("tensorboard") +_compel_available, _compel_version = _is_package_available("compel") +_sentencepiece_available, _sentencepiece_version = _is_package_available("sentencepiece") +_torchsde_available, _torchsde_version = _is_package_available("torchsde") +_peft_available, _peft_version = _is_package_available("peft") +_torchvision_available, _torchvision_version = _is_package_available("torchvision") +_matplotlib_available, _matplotlib_version = _is_package_available("matplotlib") +_timm_available, _timm_version = _is_package_available("timm") +_bitsandbytes_available, _bitsandbytes_version = _is_package_available("bitsandbytes") +_imageio_available, _imageio_version = _is_package_available("imageio") +_ftfy_available, _ftfy_version = _is_package_available("ftfy") +_scipy_available, _scipy_version = _is_package_available("scipy") +_librosa_available, _librosa_version = _is_package_available("librosa") +_accelerate_available, _accelerate_version = _is_package_available("accelerate") +_xformers_available, _xformers_version = _is_package_available("xformers") +_gguf_available, _gguf_version = _is_package_available("gguf") +_torchao_available, _torchao_version = _is_package_available("torchao") +_bitsandbytes_available, _bitsandbytes_version = _is_package_available("bitsandbytes") +_optimum_quanto_available, _optimum_quanto_version = _is_package_available("optimum", get_dist_name=True) +_pytorch_retinaface_available, _pytorch_retinaface_version = _is_package_available("pytorch_retinaface") +_better_profanity_available, _better_profanity_version = _is_package_available("better_profanity") +_nltk_available, _nltk_version = _is_package_available("nltk") +_cosmos_guardrail_available, _cosmos_guardrail_version = _is_package_available("cosmos_guardrail") +_sageattention_available, _sageattention_version = _is_package_available("sageattention") +_flash_attn_available, _flash_attn_version = _is_package_available("flash_attn") +_flash_attn_3_available, _flash_attn_3_version = _is_package_available("flash_attn_3") +_aiter_available, _aiter_version = _is_package_available("aiter") +_kornia_available, _kornia_version = _is_package_available("kornia") +_nvidia_modelopt_available, _nvidia_modelopt_version = _is_package_available("modelopt", get_dist_name=True) + + +def is_torch_available(): + return _torch_available + + +def is_torch_xla_available(): + return _torch_xla_available + + +def is_torch_npu_available(): + return _torch_npu_available + + +def is_torch_mlu_available(): + return _torch_mlu_available + + +def is_flax_available(): + return _flax_available + + +def is_transformers_available(): + return _transformers_available + + +def is_inflect_available(): + return _inflect_available + + +def is_unidecode_available(): + return _unidecode_available + + +def is_onnx_available(): + return _onnx_available + + +def is_opencv_available(): + return _opencv_available + + +def is_scipy_available(): + return _scipy_available + + +def is_librosa_available(): + return _librosa_available + + +def is_xformers_available(): + return _xformers_available + + +def is_accelerate_available(): + return _accelerate_available + + +def is_kernels_available(): + return _kernels_available + + +def is_k_diffusion_available(): + return _k_diffusion_available + + +def is_note_seq_available(): + return _note_seq_available + + +def is_wandb_available(): + return _wandb_available + + +def is_tensorboard_available(): + return _tensorboard_available + + +def is_compel_available(): + return _compel_available + + +def is_ftfy_available(): + return _ftfy_available + + +def is_bs4_available(): + return _bs4_available + + +def is_torchsde_available(): + return _torchsde_available + + +def is_invisible_watermark_available(): + return _invisible_watermark_available + + +def is_peft_available(): + return _peft_available + + +def is_torchvision_available(): + return _torchvision_available + + +def is_matplotlib_available(): + return _matplotlib_available + + +def is_safetensors_available(): + return _safetensors_available + + +def is_bitsandbytes_available(): + return _bitsandbytes_available + + +def is_google_colab(): + return _is_google_colab + + +def is_sentencepiece_available(): + return _sentencepiece_available + + +def is_imageio_available(): + return _imageio_available + + +def is_gguf_available(): + return _gguf_available + + +def is_torchao_available(): + return _torchao_available + + +def is_optimum_quanto_available(): + return _optimum_quanto_available + + +def is_nvidia_modelopt_available(): + return _nvidia_modelopt_available + + +def is_timm_available(): + return _timm_available + + +def is_pytorch_retinaface_available(): + return _pytorch_retinaface_available + + +def is_better_profanity_available(): + return _better_profanity_available + + +def is_nltk_available(): + return _nltk_available + + +def is_cosmos_guardrail_available(): + return _cosmos_guardrail_available + + +def is_hpu_available(): + return all(importlib.util.find_spec(lib) for lib in ("habana_frameworks", "habana_frameworks.torch")) + + +def is_sageattention_available(): + return _sageattention_available + + +def is_flash_attn_available(): + return _flash_attn_available + + +def is_flash_attn_3_available(): + return _flash_attn_3_available + + +def is_aiter_available(): + return _aiter_available + + +def is_kornia_available(): + return _kornia_available + + +# docstyle-ignore +FLAX_IMPORT_ERROR = """ +{0} requires the FLAX library but it was not found in your environment. Checkout the instructions on the +installation page: https://github.com/google/flax and follow the ones that match your environment. +""" + +# docstyle-ignore +INFLECT_IMPORT_ERROR = """ +{0} requires the inflect library but it was not found in your environment. You can install it with pip: `pip install +inflect` +""" + +# docstyle-ignore +PYTORCH_IMPORT_ERROR = """ +{0} requires the PyTorch library but it was not found in your environment. Checkout the instructions on the +installation page: https://pytorch.org/get-started/locally/ and follow the ones that match your environment. +""" + +# docstyle-ignore +ONNX_IMPORT_ERROR = """ +{0} requires the onnxruntime library but it was not found in your environment. You can install it with pip: `pip +install onnxruntime` +""" + +# docstyle-ignore +OPENCV_IMPORT_ERROR = """ +{0} requires the OpenCV library but it was not found in your environment. You can install it with pip: `pip +install opencv-python` +""" + +# docstyle-ignore +SCIPY_IMPORT_ERROR = """ +{0} requires the scipy library but it was not found in your environment. You can install it with pip: `pip install +scipy` +""" + +# docstyle-ignore +LIBROSA_IMPORT_ERROR = """ +{0} requires the librosa library but it was not found in your environment. Checkout the instructions on the +installation page: https://librosa.org/doc/latest/install.html and follow the ones that match your environment. +""" + +# docstyle-ignore +TRANSFORMERS_IMPORT_ERROR = """ +{0} requires the transformers library but it was not found in your environment. You can install it with pip: `pip +install transformers` +""" + +# docstyle-ignore +UNIDECODE_IMPORT_ERROR = """ +{0} requires the unidecode library but it was not found in your environment. You can install it with pip: `pip install +Unidecode` +""" + +# docstyle-ignore +K_DIFFUSION_IMPORT_ERROR = """ +{0} requires the k-diffusion library but it was not found in your environment. You can install it with pip: `pip +install k-diffusion` +""" + +# docstyle-ignore +NOTE_SEQ_IMPORT_ERROR = """ +{0} requires the note-seq library but it was not found in your environment. You can install it with pip: `pip +install note-seq` +""" + +# docstyle-ignore +WANDB_IMPORT_ERROR = """ +{0} requires the wandb library but it was not found in your environment. You can install it with pip: `pip +install wandb` +""" + +# docstyle-ignore +TENSORBOARD_IMPORT_ERROR = """ +{0} requires the tensorboard library but it was not found in your environment. You can install it with pip: `pip +install tensorboard` +""" + + +# docstyle-ignore +COMPEL_IMPORT_ERROR = """ +{0} requires the compel library but it was not found in your environment. You can install it with pip: `pip install compel` +""" + +# docstyle-ignore +BS4_IMPORT_ERROR = """ +{0} requires the Beautiful Soup library but it was not found in your environment. You can install it with pip: +`pip install beautifulsoup4`. Please note that you may need to restart your runtime after installation. +""" + +# docstyle-ignore +FTFY_IMPORT_ERROR = """ +{0} requires the ftfy library but it was not found in your environment. Checkout the instructions on the +installation section: https://github.com/rspeer/python-ftfy/tree/master#installing and follow the ones +that match your environment. Please note that you may need to restart your runtime after installation. +""" + +# docstyle-ignore +TORCHSDE_IMPORT_ERROR = """ +{0} requires the torchsde library but it was not found in your environment. You can install it with pip: `pip install torchsde` +""" + +# docstyle-ignore +INVISIBLE_WATERMARK_IMPORT_ERROR = """ +{0} requires the invisible-watermark library but it was not found in your environment. You can install it with pip: `pip install invisible-watermark>=0.2.0` +""" + +# docstyle-ignore +PEFT_IMPORT_ERROR = """ +{0} requires the peft library but it was not found in your environment. You can install it with pip: `pip install peft` +""" + +# docstyle-ignore +SAFETENSORS_IMPORT_ERROR = """ +{0} requires the safetensors library but it was not found in your environment. You can install it with pip: `pip install safetensors` +""" + +# docstyle-ignore +SENTENCEPIECE_IMPORT_ERROR = """ +{0} requires the sentencepiece library but it was not found in your environment. You can install it with pip: `pip install sentencepiece` +""" + + +# docstyle-ignore +BITSANDBYTES_IMPORT_ERROR = """ +{0} requires the bitsandbytes library but it was not found in your environment. You can install it with pip: `pip install bitsandbytes` +""" + +# docstyle-ignore +IMAGEIO_IMPORT_ERROR = """ +{0} requires the imageio library and ffmpeg but it was not found in your environment. You can install it with pip: `pip install imageio imageio-ffmpeg` +""" + +# docstyle-ignore +GGUF_IMPORT_ERROR = """ +{0} requires the gguf library but it was not found in your environment. You can install it with pip: `pip install gguf` +""" + +TORCHAO_IMPORT_ERROR = """ +{0} requires the torchao library but it was not found in your environment. You can install it with pip: `pip install +torchao` +""" + +QUANTO_IMPORT_ERROR = """ +{0} requires the optimum-quanto library but it was not found in your environment. You can install it with pip: `pip +install optimum-quanto` +""" + +# docstyle-ignore +PYTORCH_RETINAFACE_IMPORT_ERROR = """ +{0} requires the pytorch_retinaface library but it was not found in your environment. You can install it with pip: `pip install pytorch_retinaface` +""" + +# docstyle-ignore +BETTER_PROFANITY_IMPORT_ERROR = """ +{0} requires the better_profanity library but it was not found in your environment. You can install it with pip: `pip install better_profanity` +""" + +# docstyle-ignore +NLTK_IMPORT_ERROR = """ +{0} requires the nltk library but it was not found in your environment. You can install it with pip: `pip install nltk` +""" + + +BACKENDS_MAPPING = OrderedDict( + [ + ("bs4", (is_bs4_available, BS4_IMPORT_ERROR)), + ("flax", (is_flax_available, FLAX_IMPORT_ERROR)), + ("inflect", (is_inflect_available, INFLECT_IMPORT_ERROR)), + ("onnx", (is_onnx_available, ONNX_IMPORT_ERROR)), + ("opencv", (is_opencv_available, OPENCV_IMPORT_ERROR)), + ("scipy", (is_scipy_available, SCIPY_IMPORT_ERROR)), + ("torch", (is_torch_available, PYTORCH_IMPORT_ERROR)), + ("transformers", (is_transformers_available, TRANSFORMERS_IMPORT_ERROR)), + ("unidecode", (is_unidecode_available, UNIDECODE_IMPORT_ERROR)), + ("librosa", (is_librosa_available, LIBROSA_IMPORT_ERROR)), + ("k_diffusion", (is_k_diffusion_available, K_DIFFUSION_IMPORT_ERROR)), + ("note_seq", (is_note_seq_available, NOTE_SEQ_IMPORT_ERROR)), + ("wandb", (is_wandb_available, WANDB_IMPORT_ERROR)), + ("tensorboard", (is_tensorboard_available, TENSORBOARD_IMPORT_ERROR)), + ("compel", (is_compel_available, COMPEL_IMPORT_ERROR)), + ("ftfy", (is_ftfy_available, FTFY_IMPORT_ERROR)), + ("torchsde", (is_torchsde_available, TORCHSDE_IMPORT_ERROR)), + ("invisible_watermark", (is_invisible_watermark_available, INVISIBLE_WATERMARK_IMPORT_ERROR)), + ("peft", (is_peft_available, PEFT_IMPORT_ERROR)), + ("safetensors", (is_safetensors_available, SAFETENSORS_IMPORT_ERROR)), + ("bitsandbytes", (is_bitsandbytes_available, BITSANDBYTES_IMPORT_ERROR)), + ("sentencepiece", (is_sentencepiece_available, SENTENCEPIECE_IMPORT_ERROR)), + ("imageio", (is_imageio_available, IMAGEIO_IMPORT_ERROR)), + ("gguf", (is_gguf_available, GGUF_IMPORT_ERROR)), + ("torchao", (is_torchao_available, TORCHAO_IMPORT_ERROR)), + ("quanto", (is_optimum_quanto_available, QUANTO_IMPORT_ERROR)), + ("pytorch_retinaface", (is_pytorch_retinaface_available, PYTORCH_RETINAFACE_IMPORT_ERROR)), + ("better_profanity", (is_better_profanity_available, BETTER_PROFANITY_IMPORT_ERROR)), + ("nltk", (is_nltk_available, NLTK_IMPORT_ERROR)), + ] +) + + +def requires_backends(obj, backends): + if not isinstance(backends, (list, tuple)): + backends = [backends] + + name = obj.__name__ if hasattr(obj, "__name__") else obj.__class__.__name__ + checks = (BACKENDS_MAPPING[backend] for backend in backends) + failed = [msg.format(name) for available, msg in checks if not available()] + if failed: + raise ImportError("".join(failed)) + + if name in [ + "VersatileDiffusionTextToImagePipeline", + "VersatileDiffusionPipeline", + "VersatileDiffusionDualGuidedPipeline", + "StableDiffusionImageVariationPipeline", + "UnCLIPPipeline", + ] and is_transformers_version("<", "4.25.0"): + raise ImportError( + f"You need to install `transformers>=4.25` in order to use {name}: \n```\n pip install" + " --upgrade transformers \n```" + ) + + if name in ["StableDiffusionDepth2ImgPipeline", "StableDiffusionPix2PixZeroPipeline"] and is_transformers_version( + "<", "4.26.0" + ): + raise ImportError( + f"You need to install `transformers>=4.26` in order to use {name}: \n```\n pip install" + " --upgrade transformers \n```" + ) + + +class DummyObject(type): + """ + Metaclass for the dummy objects. Any class inheriting from it will return the ImportError generated by + `requires_backend` each time a user tries to access any method of that class. + """ + + def __getattr__(cls, key): + if key.startswith("_") and key not in ["_load_connected_pipes", "_is_onnx"]: + return super().__getattr__(cls, key) + requires_backends(cls, cls._backends) + + +# This function was copied from: https://github.com/huggingface/accelerate/blob/874c4967d94badd24f893064cc3bef45f57cadf7/src/accelerate/utils/versions.py#L319 +def compare_versions(library_or_version: Union[str, Version], operation: str, requirement_version: str): + """ + Compares a library version to some requirement using a given operation. + + Args: + library_or_version (`str` or `packaging.version.Version`): + A library name or a version to check. + operation (`str`): + A string representation of an operator, such as `">"` or `"<="`. + requirement_version (`str`): + The version to compare the library version against + """ + if operation not in STR_OPERATION_TO_FUNC.keys(): + raise ValueError(f"`operation` must be one of {list(STR_OPERATION_TO_FUNC.keys())}, received {operation}") + operation = STR_OPERATION_TO_FUNC[operation] + if isinstance(library_or_version, str): + library_or_version = parse(importlib_metadata.version(library_or_version)) + return operation(library_or_version, parse(requirement_version)) + + +# This function was copied from: https://github.com/huggingface/accelerate/blob/874c4967d94badd24f893064cc3bef45f57cadf7/src/accelerate/utils/versions.py#L338 +@cache +def is_torch_version(operation: str, version: str): + """ + Compares the current PyTorch version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A string version of PyTorch + """ + return compare_versions(parse(_torch_version), operation, version) + + +@cache +def is_torch_xla_version(operation: str, version: str): + """ + Compares the current torch_xla version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A string version of torch_xla + """ + if not is_torch_xla_available: + return False + return compare_versions(parse(_torch_xla_version), operation, version) + + +@cache +def is_transformers_version(operation: str, version: str): + """ + Compares the current Transformers version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _transformers_available: + return False + return compare_versions(parse(_transformers_version), operation, version) + + +@cache +def is_hf_hub_version(operation: str, version: str): + """ + Compares the current Hugging Face Hub version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _hf_hub_available: + return False + return compare_versions(parse(_hf_hub_version), operation, version) + + +@cache +def is_accelerate_version(operation: str, version: str): + """ + Compares the current Accelerate version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _accelerate_available: + return False + return compare_versions(parse(_accelerate_version), operation, version) + + +@cache +def is_peft_version(operation: str, version: str): + """ + Compares the current PEFT version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _peft_available: + return False + return compare_versions(parse(_peft_version), operation, version) + + +@cache +def is_bitsandbytes_version(operation: str, version: str): + """ + Args: + Compares the current bitsandbytes version to a given reference with an operation. + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _bitsandbytes_available: + return False + return compare_versions(parse(_bitsandbytes_version), operation, version) + + +@cache +def is_gguf_version(operation: str, version: str): + """ + Compares the current Accelerate version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _gguf_available: + return False + return compare_versions(parse(_gguf_version), operation, version) + + +@cache +def is_torchao_version(operation: str, version: str): + """ + Compares the current torchao version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _torchao_available: + return False + return compare_versions(parse(_torchao_version), operation, version) + + +@cache +def is_k_diffusion_version(operation: str, version: str): + """ + Compares the current k-diffusion version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _k_diffusion_available: + return False + return compare_versions(parse(_k_diffusion_version), operation, version) + + +@cache +def is_optimum_quanto_version(operation: str, version: str): + """ + Compares the current Accelerate version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _optimum_quanto_available: + return False + return compare_versions(parse(_optimum_quanto_version), operation, version) + + +@cache +def is_nvidia_modelopt_version(operation: str, version: str): + """ + Compares the current Nvidia ModelOpt version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _nvidia_modelopt_available: + return False + return compare_versions(parse(_nvidia_modelopt_version), operation, version) + + +@cache +def is_xformers_version(operation: str, version: str): + """ + Compares the current xformers version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _xformers_available: + return False + return compare_versions(parse(_xformers_version), operation, version) + + +@cache +def is_sageattention_version(operation: str, version: str): + """ + Compares the current sageattention version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _sageattention_available: + return False + return compare_versions(parse(_sageattention_version), operation, version) + + +@cache +def is_flash_attn_version(operation: str, version: str): + """ + Compares the current flash-attention version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _flash_attn_available: + return False + return compare_versions(parse(_flash_attn_version), operation, version) + + +@cache +def is_aiter_version(operation: str, version: str): + """ + Compares the current aiter version to a given reference with an operation. + + Args: + operation (`str`): + A string representation of an operator, such as `">"` or `"<="` + version (`str`): + A version string + """ + if not _aiter_available: + return False + return compare_versions(parse(_aiter_version), operation, version) + + +def get_objects_from_module(module): + """ + Returns a dict of object names and values in a module, while skipping private/internal objects + + Args: + module (ModuleType): + Module to extract the objects from. + + Returns: + dict: Dictionary of object names and corresponding values + """ + + objects = {} + for name in dir(module): + if name.startswith("_"): + continue + objects[name] = getattr(module, name) + + return objects + + +class OptionalDependencyNotAvailable(BaseException): + """ + An error indicating that an optional dependency of Diffusers was not found in the environment. + """ + + +class _LazyModule(ModuleType): + """ + Module class that surfaces all objects but only performs associated imports when the objects are requested. + """ + + # Very heavily inspired by optuna.integration._IntegrationModule + # https://github.com/optuna/optuna/blob/master/optuna/integration/__init__.py + def __init__(self, name, module_file, import_structure, module_spec=None, extra_objects=None): + super().__init__(name) + self._modules = set(import_structure.keys()) + self._class_to_module = {} + for key, values in import_structure.items(): + for value in values: + self._class_to_module[value] = key + # Needed for autocompletion in an IDE + self.__all__ = list(import_structure.keys()) + list(chain(*import_structure.values())) + self.__file__ = module_file + self.__spec__ = module_spec + self.__path__ = [os.path.dirname(module_file)] + self._objects = {} if extra_objects is None else extra_objects + self._name = name + self._import_structure = import_structure + + # Needed for autocompletion in an IDE + def __dir__(self): + result = super().__dir__() + # The elements of self.__all__ that are submodules may or may not be in the dir already, depending on whether + # they have been accessed or not. So we only add the elements of self.__all__ that are not already in the dir. + for attr in self.__all__: + if attr not in result: + result.append(attr) + return result + + def __getattr__(self, name: str) -> Any: + if name in self._objects: + return self._objects[name] + if name in self._modules: + value = self._get_module(name) + elif name in self._class_to_module.keys(): + module = self._get_module(self._class_to_module[name]) + value = getattr(module, name) + else: + raise AttributeError(f"module {self.__name__} has no attribute {name}") + + setattr(self, name, value) + return value + + def _get_module(self, module_name: str): + try: + return importlib.import_module("." + module_name, self.__name__) + except Exception as e: + raise RuntimeError( + f"Failed to import {self.__name__}.{module_name} because of the following error (look up to see its" + f" traceback):\n{e}" + ) from e + + def __reduce__(self): + return (self.__class__, (self._name, self.__file__, self._import_structure)) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/loading_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/loading_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..dd23ae73c86175a5736af5f98d27bcd3c7a63859 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/loading_utils.py @@ -0,0 +1,163 @@ +import os +import tempfile +from typing import Any, Callable, List, Optional, Tuple, Union +from urllib.parse import unquote, urlparse + +import PIL.Image +import PIL.ImageOps +import requests + +from .constants import DIFFUSERS_REQUEST_TIMEOUT +from .import_utils import BACKENDS_MAPPING, is_imageio_available + + +def load_image( + image: Union[str, PIL.Image.Image], convert_method: Optional[Callable[[PIL.Image.Image], PIL.Image.Image]] = None +) -> PIL.Image.Image: + """ + Loads `image` to a PIL Image. + + Args: + image (`str` or `PIL.Image.Image`): + The image to convert to the PIL Image format. + convert_method (Callable[[PIL.Image.Image], PIL.Image.Image], *optional*): + A conversion method to apply to the image after loading it. When set to `None` the image will be converted + "RGB". + + Returns: + `PIL.Image.Image`: + A PIL Image. + """ + if isinstance(image, str): + if image.startswith("http://") or image.startswith("https://"): + image = PIL.Image.open(requests.get(image, stream=True, timeout=DIFFUSERS_REQUEST_TIMEOUT).raw) + elif os.path.isfile(image): + image = PIL.Image.open(image) + else: + raise ValueError( + f"Incorrect path or URL. URLs must start with `http://` or `https://`, and {image} is not a valid path." + ) + elif isinstance(image, PIL.Image.Image): + image = image + else: + raise ValueError( + "Incorrect format used for the image. Should be a URL linking to an image, a local path, or a PIL image." + ) + + image = PIL.ImageOps.exif_transpose(image) + + if convert_method is not None: + image = convert_method(image) + else: + image = image.convert("RGB") + + return image + + +def load_video( + video: str, + convert_method: Optional[Callable[[List[PIL.Image.Image]], List[PIL.Image.Image]]] = None, +) -> List[PIL.Image.Image]: + """ + Loads `video` to a list of PIL Image. + + Args: + video (`str`): + A URL or Path to a video to convert to a list of PIL Image format. + convert_method (Callable[[List[PIL.Image.Image]], List[PIL.Image.Image]], *optional*): + A conversion method to apply to the video after loading it. When set to `None` the images will be converted + to "RGB". + + Returns: + `List[PIL.Image.Image]`: + The video as a list of PIL images. + """ + is_url = video.startswith("http://") or video.startswith("https://") + is_file = os.path.isfile(video) + was_tempfile_created = False + + if not (is_url or is_file): + raise ValueError( + f"Incorrect path or URL. URLs must start with `http://` or `https://`, and {video} is not a valid path." + ) + + if is_url: + response = requests.get(video, stream=True) + if response.status_code != 200: + raise ValueError(f"Failed to download video. Status code: {response.status_code}") + + parsed_url = urlparse(video) + file_name = os.path.basename(unquote(parsed_url.path)) + + suffix = os.path.splitext(file_name)[1] or ".mp4" + video_path = tempfile.NamedTemporaryFile(suffix=suffix, delete=False).name + + was_tempfile_created = True + + video_data = response.iter_content(chunk_size=8192) + with open(video_path, "wb") as f: + for chunk in video_data: + f.write(chunk) + + video = video_path + + pil_images = [] + if video.endswith(".gif"): + gif = PIL.Image.open(video) + try: + while True: + pil_images.append(gif.copy()) + gif.seek(gif.tell() + 1) + except EOFError: + pass + + else: + if is_imageio_available(): + import imageio + else: + raise ImportError(BACKENDS_MAPPING["imageio"][1].format("load_video")) + + try: + imageio.plugins.ffmpeg.get_exe() + except AttributeError: + raise AttributeError( + "`Unable to find an ffmpeg installation on your machine. Please install via `pip install imageio-ffmpeg" + ) + + with imageio.get_reader(video) as reader: + # Read all frames + for frame in reader: + pil_images.append(PIL.Image.fromarray(frame)) + + if was_tempfile_created: + os.remove(video_path) + + if convert_method is not None: + pil_images = convert_method(pil_images) + + return pil_images + + +# Taken from `transformers`. +def get_module_from_name(module, tensor_name: str) -> Tuple[Any, str]: + if "." in tensor_name: + splits = tensor_name.split(".") + for split in splits[:-1]: + new_module = getattr(module, split) + if new_module is None: + raise ValueError(f"{module} has no attribute {split}.") + module = new_module + tensor_name = splits[-1] + return module, tensor_name + + +def get_submodule_by_name(root_module, module_path: str): + current = root_module + parts = module_path.split(".") + for part in parts: + if part.isdigit(): + idx = int(part) + current = current[idx] # e.g., for nn.ModuleList or nn.Sequential + else: + current = getattr(current, part) + return current diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/logging.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/logging.py new file mode 100644 index 0000000000000000000000000000000000000000..2ad6d3a476076dbc7f4d3e9ab1ab9f48de24d76f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/logging.py @@ -0,0 +1,340 @@ +# coding=utf-8 +# Copyright 2025 Optuna, Hugging Face +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Logging utilities.""" + +import logging +import os +import sys +import threading +from logging import ( + CRITICAL, # NOQA + DEBUG, # NOQA + ERROR, # NOQA + FATAL, # NOQA + INFO, # NOQA + NOTSET, # NOQA + WARN, # NOQA + WARNING, # NOQA +) +from typing import Dict, Optional + +from tqdm import auto as tqdm_lib + + +_lock = threading.Lock() +_default_handler: Optional[logging.Handler] = None + +log_levels = { + "debug": logging.DEBUG, + "info": logging.INFO, + "warning": logging.WARNING, + "error": logging.ERROR, + "critical": logging.CRITICAL, +} + +_default_log_level = logging.WARNING + +_tqdm_active = True + + +def _get_default_logging_level() -> int: + """ + If DIFFUSERS_VERBOSITY env var is set to one of the valid choices return that as the new default level. If it is + not - fall back to `_default_log_level` + """ + env_level_str = os.getenv("DIFFUSERS_VERBOSITY", None) + if env_level_str: + if env_level_str in log_levels: + return log_levels[env_level_str] + else: + logging.getLogger().warning( + f"Unknown option DIFFUSERS_VERBOSITY={env_level_str}, has to be one of: {', '.join(log_levels.keys())}" + ) + return _default_log_level + + +def _get_library_name() -> str: + return __name__.split(".")[0] + + +def _get_library_root_logger() -> logging.Logger: + return logging.getLogger(_get_library_name()) + + +def _configure_library_root_logger() -> None: + global _default_handler + + with _lock: + if _default_handler: + # This library has already configured the library root logger. + return + _default_handler = logging.StreamHandler() # Set sys.stderr as stream. + + if sys.stderr: # only if sys.stderr exists, e.g. when not using pythonw in windows + _default_handler.flush = sys.stderr.flush + + # Apply our default configuration to the library root logger. + library_root_logger = _get_library_root_logger() + library_root_logger.addHandler(_default_handler) + library_root_logger.setLevel(_get_default_logging_level()) + library_root_logger.propagate = False + + +def _reset_library_root_logger() -> None: + global _default_handler + + with _lock: + if not _default_handler: + return + + library_root_logger = _get_library_root_logger() + library_root_logger.removeHandler(_default_handler) + library_root_logger.setLevel(logging.NOTSET) + _default_handler = None + + +def get_log_levels_dict() -> Dict[str, int]: + return log_levels + + +def get_logger(name: Optional[str] = None) -> logging.Logger: + """ + Return a logger with the specified name. + + This function is not supposed to be directly accessed unless you are writing a custom diffusers module. + """ + + if name is None: + name = _get_library_name() + + _configure_library_root_logger() + return logging.getLogger(name) + + +def get_verbosity() -> int: + """ + Return the current level for the 🤗 Diffusers' root logger as an `int`. + + Returns: + `int`: + Logging level integers which can be one of: + + - `50`: `diffusers.logging.CRITICAL` or `diffusers.logging.FATAL` + - `40`: `diffusers.logging.ERROR` + - `30`: `diffusers.logging.WARNING` or `diffusers.logging.WARN` + - `20`: `diffusers.logging.INFO` + - `10`: `diffusers.logging.DEBUG` + + """ + + _configure_library_root_logger() + return _get_library_root_logger().getEffectiveLevel() + + +def set_verbosity(verbosity: int) -> None: + """ + Set the verbosity level for the 🤗 Diffusers' root logger. + + Args: + verbosity (`int`): + Logging level which can be one of: + + - `diffusers.logging.CRITICAL` or `diffusers.logging.FATAL` + - `diffusers.logging.ERROR` + - `diffusers.logging.WARNING` or `diffusers.logging.WARN` + - `diffusers.logging.INFO` + - `diffusers.logging.DEBUG` + """ + + _configure_library_root_logger() + _get_library_root_logger().setLevel(verbosity) + + +def set_verbosity_info() -> None: + """Set the verbosity to the `INFO` level.""" + return set_verbosity(INFO) + + +def set_verbosity_warning() -> None: + """Set the verbosity to the `WARNING` level.""" + return set_verbosity(WARNING) + + +def set_verbosity_debug() -> None: + """Set the verbosity to the `DEBUG` level.""" + return set_verbosity(DEBUG) + + +def set_verbosity_error() -> None: + """Set the verbosity to the `ERROR` level.""" + return set_verbosity(ERROR) + + +def disable_default_handler() -> None: + """Disable the default handler of the 🤗 Diffusers' root logger.""" + + _configure_library_root_logger() + + assert _default_handler is not None + _get_library_root_logger().removeHandler(_default_handler) + + +def enable_default_handler() -> None: + """Enable the default handler of the 🤗 Diffusers' root logger.""" + + _configure_library_root_logger() + + assert _default_handler is not None + _get_library_root_logger().addHandler(_default_handler) + + +def add_handler(handler: logging.Handler) -> None: + """adds a handler to the HuggingFace Diffusers' root logger.""" + + _configure_library_root_logger() + + assert handler is not None + _get_library_root_logger().addHandler(handler) + + +def remove_handler(handler: logging.Handler) -> None: + """removes given handler from the HuggingFace Diffusers' root logger.""" + + _configure_library_root_logger() + + assert handler is not None and handler in _get_library_root_logger().handlers + _get_library_root_logger().removeHandler(handler) + + +def disable_propagation() -> None: + """ + Disable propagation of the library log outputs. Note that log propagation is disabled by default. + """ + + _configure_library_root_logger() + _get_library_root_logger().propagate = False + + +def enable_propagation() -> None: + """ + Enable propagation of the library log outputs. Please disable the HuggingFace Diffusers' default handler to prevent + double logging if the root logger has been configured. + """ + + _configure_library_root_logger() + _get_library_root_logger().propagate = True + + +def enable_explicit_format() -> None: + """ + Enable explicit formatting for every 🤗 Diffusers' logger. The explicit formatter is as follows: + ``` + [LEVELNAME|FILENAME|LINE NUMBER] TIME >> MESSAGE + ``` + All handlers currently bound to the root logger are affected by this method. + """ + handlers = _get_library_root_logger().handlers + + for handler in handlers: + formatter = logging.Formatter("[%(levelname)s|%(filename)s:%(lineno)s] %(asctime)s >> %(message)s") + handler.setFormatter(formatter) + + +def reset_format() -> None: + """ + Resets the formatting for 🤗 Diffusers' loggers. + + All handlers currently bound to the root logger are affected by this method. + """ + handlers = _get_library_root_logger().handlers + + for handler in handlers: + handler.setFormatter(None) + + +def warning_advice(self, *args, **kwargs) -> None: + """ + This method is identical to `logger.warning()`, but if env var DIFFUSERS_NO_ADVISORY_WARNINGS=1 is set, this + warning will not be printed + """ + no_advisory_warnings = os.getenv("DIFFUSERS_NO_ADVISORY_WARNINGS", False) + if no_advisory_warnings: + return + self.warning(*args, **kwargs) + + +logging.Logger.warning_advice = warning_advice + + +class EmptyTqdm: + """Dummy tqdm which doesn't do anything.""" + + def __init__(self, *args, **kwargs): # pylint: disable=unused-argument + self._iterator = args[0] if args else None + + def __iter__(self): + return iter(self._iterator) + + def __getattr__(self, _): + """Return empty function.""" + + def empty_fn(*args, **kwargs): # pylint: disable=unused-argument + return + + return empty_fn + + def __enter__(self): + return self + + def __exit__(self, type_, value, traceback): + return + + +class _tqdm_cls: + def __call__(self, *args, **kwargs): + if _tqdm_active: + return tqdm_lib.tqdm(*args, **kwargs) + else: + return EmptyTqdm(*args, **kwargs) + + def set_lock(self, *args, **kwargs): + self._lock = None + if _tqdm_active: + return tqdm_lib.tqdm.set_lock(*args, **kwargs) + + def get_lock(self): + if _tqdm_active: + return tqdm_lib.tqdm.get_lock() + + +tqdm = _tqdm_cls() + + +def is_progress_bar_enabled() -> bool: + """Return a boolean indicating whether tqdm progress bars are enabled.""" + global _tqdm_active + return bool(_tqdm_active) + + +def enable_progress_bar() -> None: + """Enable tqdm progress bar.""" + global _tqdm_active + _tqdm_active = True + + +def disable_progress_bar() -> None: + """Disable tqdm progress bar.""" + global _tqdm_active + _tqdm_active = False diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/model_card_template.md b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/model_card_template.md new file mode 100644 index 0000000000000000000000000000000000000000..f41b71e24e2081425d3049ae51b50036d5d28b6a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/model_card_template.md @@ -0,0 +1,24 @@ +--- +{{ card_data }} +--- + + + +{{ model_description }} + +## Intended uses & limitations + +#### How to use + +```python +# TODO: add an example code snippet for running this diffusion pipeline +``` + +#### Limitations and bias + +[TODO: provide examples of latent issues and potential remediations] + +## Training details + +[TODO: describe the data used to train the model] diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/outputs.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/outputs.py new file mode 100644 index 0000000000000000000000000000000000000000..2b20f6120ce351d8795d74acbc48cc39bd426dda --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/outputs.py @@ -0,0 +1,134 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Generic utilities +""" + +from collections import OrderedDict +from dataclasses import fields, is_dataclass +from typing import Any, Tuple + +import numpy as np + +from .import_utils import is_torch_available, is_torch_version + + +def is_tensor(x) -> bool: + """ + Tests if `x` is a `torch.Tensor` or `np.ndarray`. + """ + if is_torch_available(): + import torch + + if isinstance(x, torch.Tensor): + return True + + return isinstance(x, np.ndarray) + + +class BaseOutput(OrderedDict): + """ + Base class for all model outputs as dataclass. Has a `__getitem__` that allows indexing by integer or slice (like a + tuple) or strings (like a dictionary) that will ignore the `None` attributes. Otherwise behaves like a regular + Python dictionary. + + > [!WARNING] > You can't unpack a [`BaseOutput`] directly. Use the [`~utils.BaseOutput.to_tuple`] method to convert + it to a tuple > first. + """ + + def __init_subclass__(cls) -> None: + """Register subclasses as pytree nodes. + + This is necessary to synchronize gradients when using `torch.nn.parallel.DistributedDataParallel` with + `static_graph=True` with modules that output `ModelOutput` subclasses. + """ + if is_torch_available(): + import torch.utils._pytree + + if is_torch_version("<", "2.2"): + torch.utils._pytree._register_pytree_node( + cls, + torch.utils._pytree._dict_flatten, + lambda values, context: cls(**torch.utils._pytree._dict_unflatten(values, context)), + ) + else: + torch.utils._pytree.register_pytree_node( + cls, + torch.utils._pytree._dict_flatten, + lambda values, context: cls(**torch.utils._pytree._dict_unflatten(values, context)), + serialized_type_name=f"{cls.__module__}.{cls.__name__}", + ) + + def __post_init__(self) -> None: + class_fields = fields(self) + + # Safety and consistency checks + if not len(class_fields): + raise ValueError(f"{self.__class__.__name__} has no fields.") + + first_field = getattr(self, class_fields[0].name) + other_fields_are_none = all(getattr(self, field.name) is None for field in class_fields[1:]) + + if other_fields_are_none and isinstance(first_field, dict): + for key, value in first_field.items(): + self[key] = value + else: + for field in class_fields: + v = getattr(self, field.name) + if v is not None: + self[field.name] = v + + def __delitem__(self, *args, **kwargs): + raise Exception(f"You cannot use ``__delitem__`` on a {self.__class__.__name__} instance.") + + def setdefault(self, *args, **kwargs): + raise Exception(f"You cannot use ``setdefault`` on a {self.__class__.__name__} instance.") + + def pop(self, *args, **kwargs): + raise Exception(f"You cannot use ``pop`` on a {self.__class__.__name__} instance.") + + def update(self, *args, **kwargs): + raise Exception(f"You cannot use ``update`` on a {self.__class__.__name__} instance.") + + def __getitem__(self, k: Any) -> Any: + if isinstance(k, str): + inner_dict = dict(self.items()) + return inner_dict[k] + else: + return self.to_tuple()[k] + + def __setattr__(self, name: Any, value: Any) -> None: + if name in self.keys() and value is not None: + # Don't call self.__setitem__ to avoid recursion errors + super().__setitem__(name, value) + super().__setattr__(name, value) + + def __setitem__(self, key, value): + # Will raise a KeyException if needed + super().__setitem__(key, value) + # Don't call self.__setattr__ to avoid recursion errors + super().__setattr__(key, value) + + def __reduce__(self): + if not is_dataclass(self): + return super().__reduce__() + callable, _args, *remaining = super().__reduce__() + args = tuple(getattr(self, field.name) for field in fields(self)) + return callable, args, *remaining + + def to_tuple(self) -> Tuple[Any, ...]: + """ + Convert self to a tuple containing all the attributes/keys that are not `None`. + """ + return tuple(self[k] for k in self.keys()) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/peft_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/peft_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..12066ee3f89b3ca862b1ecaaf6b93c8e2505224f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/peft_utils.py @@ -0,0 +1,376 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +PEFT utilities: Utilities related to peft library +""" + +import collections +import importlib +from typing import Optional + +from packaging import version + +from . import logging +from .import_utils import is_peft_available, is_peft_version, is_torch_available +from .torch_utils import empty_device_cache + + +logger = logging.get_logger(__name__) + +if is_torch_available(): + import torch + + +def recurse_remove_peft_layers(model): + r""" + Recursively replace all instances of `LoraLayer` with corresponding new layers in `model`. + """ + from peft.tuners.tuners_utils import BaseTunerLayer + + has_base_layer_pattern = False + for module in model.modules(): + if isinstance(module, BaseTunerLayer): + has_base_layer_pattern = hasattr(module, "base_layer") + break + + if has_base_layer_pattern: + from peft.utils import _get_submodules + + key_list = [key for key, _ in model.named_modules() if "lora" not in key] + for key in key_list: + try: + parent, target, target_name = _get_submodules(model, key) + except AttributeError: + continue + if hasattr(target, "base_layer"): + setattr(parent, target_name, target.get_base_layer()) + else: + # This is for backwards compatibility with PEFT <= 0.6.2. + # TODO can be removed once that PEFT version is no longer supported. + from peft.tuners.lora import LoraLayer + + for name, module in model.named_children(): + if len(list(module.children())) > 0: + ## compound module, go inside it + recurse_remove_peft_layers(module) + + module_replaced = False + + if isinstance(module, LoraLayer) and isinstance(module, torch.nn.Linear): + new_module = torch.nn.Linear( + module.in_features, + module.out_features, + bias=module.bias is not None, + ).to(module.weight.device) + new_module.weight = module.weight + if module.bias is not None: + new_module.bias = module.bias + + module_replaced = True + elif isinstance(module, LoraLayer) and isinstance(module, torch.nn.Conv2d): + new_module = torch.nn.Conv2d( + module.in_channels, + module.out_channels, + module.kernel_size, + module.stride, + module.padding, + module.dilation, + module.groups, + ).to(module.weight.device) + + new_module.weight = module.weight + if module.bias is not None: + new_module.bias = module.bias + + module_replaced = True + + if module_replaced: + setattr(model, name, new_module) + del module + + empty_device_cache() + return model + + +def scale_lora_layers(model, weight): + """ + Adjust the weightage given to the LoRA layers of the model. + + Args: + model (`torch.nn.Module`): + The model to scale. + weight (`float`): + The weight to be given to the LoRA layers. + """ + from peft.tuners.tuners_utils import BaseTunerLayer + + if weight == 1.0: + return + + for module in model.modules(): + if isinstance(module, BaseTunerLayer): + module.scale_layer(weight) + + +def unscale_lora_layers(model, weight: Optional[float] = None): + """ + Removes the previously passed weight given to the LoRA layers of the model. + + Args: + model (`torch.nn.Module`): + The model to scale. + weight (`float`, *optional*): + The weight to be given to the LoRA layers. If no scale is passed the scale of the lora layer will be + re-initialized to the correct value. If 0.0 is passed, we will re-initialize the scale with the correct + value. + """ + from peft.tuners.tuners_utils import BaseTunerLayer + + if weight is None or weight == 1.0: + return + + for module in model.modules(): + if isinstance(module, BaseTunerLayer): + if weight != 0: + module.unscale_layer(weight) + else: + for adapter_name in module.active_adapters: + # if weight == 0 unscale should re-set the scale to the original value. + module.set_scale(adapter_name, 1.0) + + +def get_peft_kwargs( + rank_dict, network_alpha_dict, peft_state_dict, is_unet=True, model_state_dict=None, adapter_name=None +): + rank_pattern = {} + alpha_pattern = {} + r = lora_alpha = list(rank_dict.values())[0] + + if len(set(rank_dict.values())) > 1: + # get the rank occurring the most number of times + r = collections.Counter(rank_dict.values()).most_common()[0][0] + + # for modules with rank different from the most occurring rank, add it to the `rank_pattern` + rank_pattern = dict(filter(lambda x: x[1] != r, rank_dict.items())) + rank_pattern = {k.split(".lora_B.")[0]: v for k, v in rank_pattern.items()} + + if network_alpha_dict is not None and len(network_alpha_dict) > 0: + if len(set(network_alpha_dict.values())) > 1: + # get the alpha occurring the most number of times + lora_alpha = collections.Counter(network_alpha_dict.values()).most_common()[0][0] + + # for modules with alpha different from the most occurring alpha, add it to the `alpha_pattern` + alpha_pattern = dict(filter(lambda x: x[1] != lora_alpha, network_alpha_dict.items())) + if is_unet: + alpha_pattern = { + ".".join(k.split(".lora_A.")[0].split(".")).replace(".alpha", ""): v + for k, v in alpha_pattern.items() + } + else: + alpha_pattern = {".".join(k.split(".down.")[0].split(".")[:-1]): v for k, v in alpha_pattern.items()} + else: + lora_alpha = set(network_alpha_dict.values()).pop() + + target_modules = list({name.split(".lora")[0] for name in peft_state_dict.keys()}) + use_dora = any("lora_magnitude_vector" in k for k in peft_state_dict) + # for now we know that the "bias" keys are only associated with `lora_B`. + lora_bias = any("lora_B" in k and k.endswith(".bias") for k in peft_state_dict) + + lora_config_kwargs = { + "r": r, + "lora_alpha": lora_alpha, + "rank_pattern": rank_pattern, + "alpha_pattern": alpha_pattern, + "target_modules": target_modules, + "use_dora": use_dora, + "lora_bias": lora_bias, + } + + return lora_config_kwargs + + +def get_adapter_name(model): + from peft.tuners.tuners_utils import BaseTunerLayer + + for module in model.modules(): + if isinstance(module, BaseTunerLayer): + return f"default_{len(module.r)}" + return "default_0" + + +def set_adapter_layers(model, enabled=True): + from peft.tuners.tuners_utils import BaseTunerLayer + + for module in model.modules(): + if isinstance(module, BaseTunerLayer): + # The recent version of PEFT needs to call `enable_adapters` instead + if hasattr(module, "enable_adapters"): + module.enable_adapters(enabled=enabled) + else: + module.disable_adapters = not enabled + + +def delete_adapter_layers(model, adapter_name): + from peft.tuners.tuners_utils import BaseTunerLayer + + for module in model.modules(): + if isinstance(module, BaseTunerLayer): + if hasattr(module, "delete_adapter"): + module.delete_adapter(adapter_name) + else: + raise ValueError( + "The version of PEFT you are using is not compatible, please use a version that is greater than 0.6.1" + ) + + # For transformers integration - we need to pop the adapter from the config + if getattr(model, "_hf_peft_config_loaded", False) and hasattr(model, "peft_config"): + model.peft_config.pop(adapter_name, None) + # In case all adapters are deleted, we need to delete the config + # and make sure to set the flag to False + if len(model.peft_config) == 0: + del model.peft_config + model._hf_peft_config_loaded = None + + +def set_weights_and_activate_adapters(model, adapter_names, weights): + from peft.tuners.tuners_utils import BaseTunerLayer + + def get_module_weight(weight_for_adapter, module_name): + if not isinstance(weight_for_adapter, dict): + # If weight_for_adapter is a single number, always return it. + return weight_for_adapter + + for layer_name, weight_ in weight_for_adapter.items(): + if layer_name in module_name: + return weight_ + + parts = module_name.split(".") + # e.g. key = "down_blocks.1.attentions.0" + key = f"{parts[0]}.{parts[1]}.attentions.{parts[3]}" + block_weight = weight_for_adapter.get(key, 1.0) + + return block_weight + + for module_name, module in model.named_modules(): + if isinstance(module, BaseTunerLayer): + # For backward compatibility with previous PEFT versions, set multiple active adapters + if hasattr(module, "set_adapter"): + module.set_adapter(adapter_names) + else: + module.active_adapter = adapter_names + + # Set the scaling weight for each adapter for this module + for adapter_name, weight in zip(adapter_names, weights): + module.set_scale(adapter_name, get_module_weight(weight, module_name)) + + +def check_peft_version(min_version: str) -> None: + r""" + Checks if the version of PEFT is compatible. + + Args: + version (`str`): + The version of PEFT to check against. + """ + if not is_peft_available(): + raise ValueError("PEFT is not installed. Please install it with `pip install peft`") + + is_peft_version_compatible = version.parse(importlib.metadata.version("peft")) > version.parse(min_version) + + if not is_peft_version_compatible: + raise ValueError( + f"The version of PEFT you are using is not compatible, please use a version that is greater" + f" than {min_version}" + ) + + +def _create_lora_config( + state_dict, network_alphas, metadata, rank_pattern_dict, is_unet=True, model_state_dict=None, adapter_name=None +): + from peft import LoraConfig + + if metadata is not None: + lora_config_kwargs = metadata + else: + lora_config_kwargs = get_peft_kwargs( + rank_pattern_dict, + network_alpha_dict=network_alphas, + peft_state_dict=state_dict, + is_unet=is_unet, + model_state_dict=model_state_dict, + adapter_name=adapter_name, + ) + + _maybe_raise_error_for_ambiguous_keys(lora_config_kwargs) + + # Version checks for DoRA and lora_bias + if "use_dora" in lora_config_kwargs and lora_config_kwargs["use_dora"]: + if is_peft_version("<", "0.9.0"): + raise ValueError("DoRA requires PEFT >= 0.9.0. Please upgrade.") + + if "lora_bias" in lora_config_kwargs and lora_config_kwargs["lora_bias"]: + if is_peft_version("<=", "0.13.2"): + raise ValueError("lora_bias requires PEFT >= 0.14.0. Please upgrade.") + + try: + return LoraConfig(**lora_config_kwargs) + except TypeError as e: + raise TypeError("`LoraConfig` class could not be instantiated.") from e + + +def _maybe_raise_error_for_ambiguous_keys(config): + rank_pattern = config["rank_pattern"].copy() + target_modules = config["target_modules"] + + for key in list(rank_pattern.keys()): + # try to detect ambiguity + # `target_modules` can also be a str, in which case this loop would loop + # over the chars of the str. The technically correct way to match LoRA keys + # in PEFT is to use LoraModel._check_target_module_exists (lora_config, key). + # But this cuts it for now. + exact_matches = [mod for mod in target_modules if mod == key] + substring_matches = [mod for mod in target_modules if key in mod and mod != key] + + if exact_matches and substring_matches: + if is_peft_version("<", "0.14.1"): + raise ValueError( + "There are ambiguous keys present in this LoRA. To load it, please update your `peft` installation - `pip install -U peft`." + ) + + +def _maybe_warn_for_unhandled_keys(incompatible_keys, adapter_name): + warn_msg = "" + if incompatible_keys is not None: + # Check only for unexpected keys. + unexpected_keys = getattr(incompatible_keys, "unexpected_keys", None) + if unexpected_keys: + lora_unexpected_keys = [k for k in unexpected_keys if "lora_" in k and adapter_name in k] + if lora_unexpected_keys: + warn_msg = ( + f"Loading adapter weights from state_dict led to unexpected keys found in the model:" + f" {', '.join(lora_unexpected_keys)}. " + ) + + # Filter missing keys specific to the current adapter. + missing_keys = getattr(incompatible_keys, "missing_keys", None) + if missing_keys: + lora_missing_keys = [k for k in missing_keys if "lora_" in k and adapter_name in k] + if lora_missing_keys: + warn_msg += ( + f"Loading adapter weights from state_dict led to missing keys in the model:" + f" {', '.join(lora_missing_keys)}." + ) + + if warn_msg: + logger.warning(warn_msg) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/pil_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/pil_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..76678070b697c7d87fc3691d9bc5bb3bea83c5b1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/pil_utils.py @@ -0,0 +1,67 @@ +from typing import List + +import PIL.Image +import PIL.ImageOps +from packaging import version +from PIL import Image + + +if version.parse(version.parse(PIL.__version__).base_version) >= version.parse("9.1.0"): + PIL_INTERPOLATION = { + "linear": PIL.Image.Resampling.BILINEAR, + "bilinear": PIL.Image.Resampling.BILINEAR, + "bicubic": PIL.Image.Resampling.BICUBIC, + "lanczos": PIL.Image.Resampling.LANCZOS, + "nearest": PIL.Image.Resampling.NEAREST, + } +else: + PIL_INTERPOLATION = { + "linear": PIL.Image.LINEAR, + "bilinear": PIL.Image.BILINEAR, + "bicubic": PIL.Image.BICUBIC, + "lanczos": PIL.Image.LANCZOS, + "nearest": PIL.Image.NEAREST, + } + + +def pt_to_pil(images): + """ + Convert a torch image to a PIL image. + """ + images = (images / 2 + 0.5).clamp(0, 1) + images = images.cpu().permute(0, 2, 3, 1).float().numpy() + images = numpy_to_pil(images) + return images + + +def numpy_to_pil(images): + """ + Convert a numpy image or a batch of images to a PIL image. + """ + if images.ndim == 3: + images = images[None, ...] + images = (images * 255).round().astype("uint8") + if images.shape[-1] == 1: + # special case for grayscale (single channel) images + pil_images = [Image.fromarray(image.squeeze(), mode="L") for image in images] + else: + pil_images = [Image.fromarray(image) for image in images] + + return pil_images + + +def make_image_grid(images: List[PIL.Image.Image], rows: int, cols: int, resize: int = None) -> PIL.Image.Image: + """ + Prepares a single grid of images. Useful for visualization purposes. + """ + assert len(images) == rows * cols + + if resize is not None: + images = [img.resize((resize, resize)) for img in images] + + w, h = images[0].size + grid = Image.new("RGB", size=(cols * w, rows * h)) + + for i, img in enumerate(images): + grid.paste(img, box=(i % cols * w, i // cols * h)) + return grid diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/remote_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/remote_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..6494dc14171a935cc7efc247f8b4870e76b575d8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/remote_utils.py @@ -0,0 +1,425 @@ +# coding=utf-8 +# Copyright 2025 HuggingFace Inc. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import io +import json +from typing import List, Literal, Optional, Union, cast + +import requests + +from .deprecation_utils import deprecate +from .import_utils import is_safetensors_available, is_torch_available + + +if is_torch_available(): + import torch + + from ..image_processor import VaeImageProcessor + from ..video_processor import VideoProcessor + + if is_safetensors_available(): + import safetensors.torch + + DTYPE_MAP = { + "float16": torch.float16, + "float32": torch.float32, + "bfloat16": torch.bfloat16, + "uint8": torch.uint8, + } + + +from PIL import Image + + +def detect_image_type(data: bytes) -> str: + if data.startswith(b"\xff\xd8"): + return "jpeg" + elif data.startswith(b"\x89PNG\r\n\x1a\n"): + return "png" + elif data.startswith(b"GIF87a") or data.startswith(b"GIF89a"): + return "gif" + elif data.startswith(b"BM"): + return "bmp" + return "unknown" + + +def check_inputs_decode( + endpoint: str, + tensor: "torch.Tensor", + processor: Optional[Union["VaeImageProcessor", "VideoProcessor"]] = None, + do_scaling: bool = True, + scaling_factor: Optional[float] = None, + shift_factor: Optional[float] = None, + output_type: Literal["mp4", "pil", "pt"] = "pil", + return_type: Literal["mp4", "pil", "pt"] = "pil", + image_format: Literal["png", "jpg"] = "jpg", + partial_postprocess: bool = False, + input_tensor_type: Literal["binary"] = "binary", + output_tensor_type: Literal["binary"] = "binary", + height: Optional[int] = None, + width: Optional[int] = None, +): + if tensor.ndim == 3 and height is None and width is None: + raise ValueError("`height` and `width` required for packed latents.") + if ( + output_type == "pt" + and return_type == "pil" + and not partial_postprocess + and not isinstance(processor, (VaeImageProcessor, VideoProcessor)) + ): + raise ValueError("`processor` is required.") + if do_scaling and scaling_factor is None: + deprecate( + "do_scaling", + "1.0.0", + "`do_scaling` is deprecated, pass `scaling_factor` and `shift_factor` if required.", + standard_warn=False, + ) + + +def postprocess_decode( + response: requests.Response, + processor: Optional[Union["VaeImageProcessor", "VideoProcessor"]] = None, + output_type: Literal["mp4", "pil", "pt"] = "pil", + return_type: Literal["mp4", "pil", "pt"] = "pil", + partial_postprocess: bool = False, +): + if output_type == "pt" or (output_type == "pil" and processor is not None): + output_tensor = response.content + parameters = response.headers + shape = json.loads(parameters["shape"]) + dtype = parameters["dtype"] + torch_dtype = DTYPE_MAP[dtype] + output_tensor = torch.frombuffer(bytearray(output_tensor), dtype=torch_dtype).reshape(shape) + if output_type == "pt": + if partial_postprocess: + if return_type == "pil": + output = [Image.fromarray(image.numpy()) for image in output_tensor] + if len(output) == 1: + output = output[0] + elif return_type == "pt": + output = output_tensor + else: + if processor is None or return_type == "pt": + output = output_tensor + else: + if isinstance(processor, VideoProcessor): + output = cast( + List[Image.Image], + processor.postprocess_video(output_tensor, output_type="pil")[0], + ) + else: + output = cast( + Image.Image, + processor.postprocess(output_tensor, output_type="pil")[0], + ) + elif output_type == "pil" and return_type == "pil" and processor is None: + output = Image.open(io.BytesIO(response.content)).convert("RGB") + detected_format = detect_image_type(response.content) + output.format = detected_format + elif output_type == "pil" and processor is not None: + if return_type == "pil": + output = [ + Image.fromarray(image) + for image in (output_tensor.permute(0, 2, 3, 1).float().numpy() * 255).round().astype("uint8") + ] + elif return_type == "pt": + output = output_tensor + elif output_type == "mp4" and return_type == "mp4": + output = response.content + return output + + +def prepare_decode( + tensor: "torch.Tensor", + processor: Optional[Union["VaeImageProcessor", "VideoProcessor"]] = None, + do_scaling: bool = True, + scaling_factor: Optional[float] = None, + shift_factor: Optional[float] = None, + output_type: Literal["mp4", "pil", "pt"] = "pil", + image_format: Literal["png", "jpg"] = "jpg", + partial_postprocess: bool = False, + height: Optional[int] = None, + width: Optional[int] = None, +): + headers = {} + parameters = { + "image_format": image_format, + "output_type": output_type, + "partial_postprocess": partial_postprocess, + "shape": list(tensor.shape), + "dtype": str(tensor.dtype).split(".")[-1], + } + if do_scaling and scaling_factor is not None: + parameters["scaling_factor"] = scaling_factor + if do_scaling and shift_factor is not None: + parameters["shift_factor"] = shift_factor + if do_scaling and scaling_factor is None: + parameters["do_scaling"] = do_scaling + elif do_scaling and scaling_factor is None and shift_factor is None: + parameters["do_scaling"] = do_scaling + if height is not None and width is not None: + parameters["height"] = height + parameters["width"] = width + headers["Content-Type"] = "tensor/binary" + headers["Accept"] = "tensor/binary" + if output_type == "pil" and image_format == "jpg" and processor is None: + headers["Accept"] = "image/jpeg" + elif output_type == "pil" and image_format == "png" and processor is None: + headers["Accept"] = "image/png" + elif output_type == "mp4": + headers["Accept"] = "text/plain" + tensor_data = safetensors.torch._tobytes(tensor, "tensor") + return {"data": tensor_data, "params": parameters, "headers": headers} + + +def remote_decode( + endpoint: str, + tensor: "torch.Tensor", + processor: Optional[Union["VaeImageProcessor", "VideoProcessor"]] = None, + do_scaling: bool = True, + scaling_factor: Optional[float] = None, + shift_factor: Optional[float] = None, + output_type: Literal["mp4", "pil", "pt"] = "pil", + return_type: Literal["mp4", "pil", "pt"] = "pil", + image_format: Literal["png", "jpg"] = "jpg", + partial_postprocess: bool = False, + input_tensor_type: Literal["binary"] = "binary", + output_tensor_type: Literal["binary"] = "binary", + height: Optional[int] = None, + width: Optional[int] = None, +) -> Union[Image.Image, List[Image.Image], bytes, "torch.Tensor"]: + """ + Hugging Face Hybrid Inference that allow running VAE decode remotely. + + Args: + endpoint (`str`): + Endpoint for Remote Decode. + tensor (`torch.Tensor`): + Tensor to be decoded. + processor (`VaeImageProcessor` or `VideoProcessor`, *optional*): + Used with `return_type="pt"`, and `return_type="pil"` for Video models. + do_scaling (`bool`, default `True`, *optional*): + **DEPRECATED**. **pass `scaling_factor`/`shift_factor` instead.** **still set + do_scaling=None/do_scaling=False for no scaling until option is removed** When `True` scaling e.g. `latents + / self.vae.config.scaling_factor` is applied remotely. If `False`, input must be passed with scaling + applied. + scaling_factor (`float`, *optional*): + Scaling is applied when passed e.g. [`latents / + self.vae.config.scaling_factor`](https://github.com/huggingface/diffusers/blob/7007febae5cff000d4df9059d9cf35133e8b2ca9/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion.py#L1083C37-L1083C77). + - SD v1: 0.18215 + - SD XL: 0.13025 + - Flux: 0.3611 + If `None`, input must be passed with scaling applied. + shift_factor (`float`, *optional*): + Shift is applied when passed e.g. `latents + self.vae.config.shift_factor`. + - Flux: 0.1159 + If `None`, input must be passed with scaling applied. + output_type (`"mp4"` or `"pil"` or `"pt", default `"pil"): + **Endpoint** output type. Subject to change. Report feedback on preferred type. + + `"mp4": Supported by video models. Endpoint returns `bytes` of video. `"pil"`: Supported by image and video + models. + Image models: Endpoint returns `bytes` of an image in `image_format`. Video models: Endpoint returns + `torch.Tensor` with partial `postprocessing` applied. + Requires `processor` as a flag (any `None` value will work). + `"pt"`: Support by image and video models. Endpoint returns `torch.Tensor`. + With `partial_postprocess=True` the tensor is postprocessed `uint8` image tensor. + + Recommendations: + `"pt"` with `partial_postprocess=True` is the smallest transfer for full quality. `"pt"` with + `partial_postprocess=False` is the most compatible with third party code. `"pil"` with + `image_format="jpg"` is the smallest transfer overall. + + return_type (`"mp4"` or `"pil"` or `"pt", default `"pil"): + **Function** return type. + + `"mp4": Function returns `bytes` of video. `"pil"`: Function returns `PIL.Image.Image`. + With `output_type="pil" no further processing is applied. With `output_type="pt" a `PIL.Image.Image` is + created. + `partial_postprocess=False` `processor` is required. `partial_postprocess=True` `processor` is + **not** required. + `"pt"`: Function returns `torch.Tensor`. + `processor` is **not** required. `partial_postprocess=False` tensor is `float16` or `bfloat16`, without + denormalization. `partial_postprocess=True` tensor is `uint8`, denormalized. + + image_format (`"png"` or `"jpg"`, default `jpg`): + Used with `output_type="pil"`. Endpoint returns `jpg` or `png`. + + partial_postprocess (`bool`, default `False`): + Used with `output_type="pt"`. `partial_postprocess=False` tensor is `float16` or `bfloat16`, without + denormalization. `partial_postprocess=True` tensor is `uint8`, denormalized. + + input_tensor_type (`"binary"`, default `"binary"`): + Tensor transfer type. + + output_tensor_type (`"binary"`, default `"binary"`): + Tensor transfer type. + + height (`int`, **optional**): + Required for `"packed"` latents. + + width (`int`, **optional**): + Required for `"packed"` latents. + + Returns: + output (`Image.Image` or `List[Image.Image]` or `bytes` or `torch.Tensor`). + """ + if input_tensor_type == "base64": + deprecate( + "input_tensor_type='base64'", + "1.0.0", + "input_tensor_type='base64' is deprecated. Using `binary`.", + standard_warn=False, + ) + input_tensor_type = "binary" + if output_tensor_type == "base64": + deprecate( + "output_tensor_type='base64'", + "1.0.0", + "output_tensor_type='base64' is deprecated. Using `binary`.", + standard_warn=False, + ) + output_tensor_type = "binary" + check_inputs_decode( + endpoint, + tensor, + processor, + do_scaling, + scaling_factor, + shift_factor, + output_type, + return_type, + image_format, + partial_postprocess, + input_tensor_type, + output_tensor_type, + height, + width, + ) + kwargs = prepare_decode( + tensor=tensor, + processor=processor, + do_scaling=do_scaling, + scaling_factor=scaling_factor, + shift_factor=shift_factor, + output_type=output_type, + image_format=image_format, + partial_postprocess=partial_postprocess, + height=height, + width=width, + ) + response = requests.post(endpoint, **kwargs) + if not response.ok: + raise RuntimeError(response.json()) + output = postprocess_decode( + response=response, + processor=processor, + output_type=output_type, + return_type=return_type, + partial_postprocess=partial_postprocess, + ) + return output + + +def check_inputs_encode( + endpoint: str, + image: Union["torch.Tensor", Image.Image], + scaling_factor: Optional[float] = None, + shift_factor: Optional[float] = None, +): + pass + + +def postprocess_encode( + response: requests.Response, +): + output_tensor = response.content + parameters = response.headers + shape = json.loads(parameters["shape"]) + dtype = parameters["dtype"] + torch_dtype = DTYPE_MAP[dtype] + output_tensor = torch.frombuffer(bytearray(output_tensor), dtype=torch_dtype).reshape(shape) + return output_tensor + + +def prepare_encode( + image: Union["torch.Tensor", Image.Image], + scaling_factor: Optional[float] = None, + shift_factor: Optional[float] = None, +): + headers = {} + parameters = {} + if scaling_factor is not None: + parameters["scaling_factor"] = scaling_factor + if shift_factor is not None: + parameters["shift_factor"] = shift_factor + if isinstance(image, torch.Tensor): + data = safetensors.torch._tobytes(image.contiguous(), "tensor") + parameters["shape"] = list(image.shape) + parameters["dtype"] = str(image.dtype).split(".")[-1] + else: + buffer = io.BytesIO() + image.save(buffer, format="PNG") + data = buffer.getvalue() + return {"data": data, "params": parameters, "headers": headers} + + +def remote_encode( + endpoint: str, + image: Union["torch.Tensor", Image.Image], + scaling_factor: Optional[float] = None, + shift_factor: Optional[float] = None, +) -> "torch.Tensor": + """ + Hugging Face Hybrid Inference that allow running VAE encode remotely. + + Args: + endpoint (`str`): + Endpoint for Remote Decode. + image (`torch.Tensor` or `PIL.Image.Image`): + Image to be encoded. + scaling_factor (`float`, *optional*): + Scaling is applied when passed e.g. [`latents * self.vae.config.scaling_factor`]. + - SD v1: 0.18215 + - SD XL: 0.13025 + - Flux: 0.3611 + If `None`, input must be passed with scaling applied. + shift_factor (`float`, *optional*): + Shift is applied when passed e.g. `latents - self.vae.config.shift_factor`. + - Flux: 0.1159 + If `None`, input must be passed with scaling applied. + + Returns: + output (`torch.Tensor`). + """ + check_inputs_encode( + endpoint, + image, + scaling_factor, + shift_factor, + ) + kwargs = prepare_encode( + image=image, + scaling_factor=scaling_factor, + shift_factor=shift_factor, + ) + response = requests.post(endpoint, **kwargs) + if not response.ok: + raise RuntimeError(response.json()) + output = postprocess_encode( + response=response, + ) + return output diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/source_code_parsing_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/source_code_parsing_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..5f94711c21d825f4baa0b32bbc37fd94c89aba03 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/source_code_parsing_utils.py @@ -0,0 +1,52 @@ +import ast +import importlib +import inspect +import textwrap + + +class ReturnNameVisitor(ast.NodeVisitor): + """Thanks to ChatGPT for pairing.""" + + def __init__(self): + self.return_names = [] + + def visit_Return(self, node): + # Check if the return value is a tuple. + if isinstance(node.value, ast.Tuple): + for elt in node.value.elts: + if isinstance(elt, ast.Name): + self.return_names.append(elt.id) + else: + try: + self.return_names.append(ast.unparse(elt)) + except Exception: + self.return_names.append(str(elt)) + else: + if isinstance(node.value, ast.Name): + self.return_names.append(node.value.id) + else: + try: + self.return_names.append(ast.unparse(node.value)) + except Exception: + self.return_names.append(str(node.value)) + self.generic_visit(node) + + def _determine_parent_module(self, cls): + from diffusers import DiffusionPipeline + from diffusers.models.modeling_utils import ModelMixin + + if issubclass(cls, DiffusionPipeline): + return "pipelines" + elif issubclass(cls, ModelMixin): + return "models" + else: + raise NotImplementedError + + def get_ast_tree(self, cls, attribute_name="encode_prompt"): + parent_module_name = self._determine_parent_module(cls) + main_module = importlib.import_module(f"diffusers.{parent_module_name}") + current_cls_module = getattr(main_module, cls.__name__) + source_code = inspect.getsource(getattr(current_cls_module, attribute_name)) + source_code = textwrap.dedent(source_code) + tree = ast.parse(source_code) + return tree diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/state_dict_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/state_dict_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..50bfce8b15eb09fc2289f7eefa1d497d97bdbd5b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/state_dict_utils.py @@ -0,0 +1,366 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +State dict utilities: utility methods for converting state dicts easily +""" + +import enum +import json + +from .import_utils import is_torch_available +from .logging import get_logger + + +if is_torch_available(): + import torch + + +logger = get_logger(__name__) + + +class StateDictType(enum.Enum): + """ + The mode to use when converting state dicts. + """ + + DIFFUSERS_OLD = "diffusers_old" + KOHYA_SS = "kohya_ss" + PEFT = "peft" + DIFFUSERS = "diffusers" + + +# We need to define a proper mapping for Unet since it uses different output keys than text encoder +# e.g. to_q_lora -> q_proj / to_q +UNET_TO_DIFFUSERS = { + ".to_out_lora.up": ".to_out.0.lora_B", + ".to_out_lora.down": ".to_out.0.lora_A", + ".to_q_lora.down": ".to_q.lora_A", + ".to_q_lora.up": ".to_q.lora_B", + ".to_k_lora.down": ".to_k.lora_A", + ".to_k_lora.up": ".to_k.lora_B", + ".to_v_lora.down": ".to_v.lora_A", + ".to_v_lora.up": ".to_v.lora_B", + ".lora.up": ".lora_B", + ".lora.down": ".lora_A", + ".to_out.lora_magnitude_vector": ".to_out.0.lora_magnitude_vector", +} + + +DIFFUSERS_TO_PEFT = { + ".q_proj.lora_linear_layer.up": ".q_proj.lora_B", + ".q_proj.lora_linear_layer.down": ".q_proj.lora_A", + ".k_proj.lora_linear_layer.up": ".k_proj.lora_B", + ".k_proj.lora_linear_layer.down": ".k_proj.lora_A", + ".v_proj.lora_linear_layer.up": ".v_proj.lora_B", + ".v_proj.lora_linear_layer.down": ".v_proj.lora_A", + ".out_proj.lora_linear_layer.up": ".out_proj.lora_B", + ".out_proj.lora_linear_layer.down": ".out_proj.lora_A", + ".lora_linear_layer.up": ".lora_B", + ".lora_linear_layer.down": ".lora_A", + "text_projection.lora.down.weight": "text_projection.lora_A.weight", + "text_projection.lora.up.weight": "text_projection.lora_B.weight", +} + +DIFFUSERS_OLD_TO_PEFT = { + ".to_q_lora.up": ".q_proj.lora_B", + ".to_q_lora.down": ".q_proj.lora_A", + ".to_k_lora.up": ".k_proj.lora_B", + ".to_k_lora.down": ".k_proj.lora_A", + ".to_v_lora.up": ".v_proj.lora_B", + ".to_v_lora.down": ".v_proj.lora_A", + ".to_out_lora.up": ".out_proj.lora_B", + ".to_out_lora.down": ".out_proj.lora_A", + ".lora_linear_layer.up": ".lora_B", + ".lora_linear_layer.down": ".lora_A", +} + +PEFT_TO_DIFFUSERS = { + ".q_proj.lora_B": ".q_proj.lora_linear_layer.up", + ".q_proj.lora_A": ".q_proj.lora_linear_layer.down", + ".k_proj.lora_B": ".k_proj.lora_linear_layer.up", + ".k_proj.lora_A": ".k_proj.lora_linear_layer.down", + ".v_proj.lora_B": ".v_proj.lora_linear_layer.up", + ".v_proj.lora_A": ".v_proj.lora_linear_layer.down", + ".out_proj.lora_B": ".out_proj.lora_linear_layer.up", + ".out_proj.lora_A": ".out_proj.lora_linear_layer.down", + "to_k.lora_A": "to_k.lora.down", + "to_k.lora_B": "to_k.lora.up", + "to_q.lora_A": "to_q.lora.down", + "to_q.lora_B": "to_q.lora.up", + "to_v.lora_A": "to_v.lora.down", + "to_v.lora_B": "to_v.lora.up", + "to_out.0.lora_A": "to_out.0.lora.down", + "to_out.0.lora_B": "to_out.0.lora.up", +} + +DIFFUSERS_OLD_TO_DIFFUSERS = { + ".to_q_lora.up": ".q_proj.lora_linear_layer.up", + ".to_q_lora.down": ".q_proj.lora_linear_layer.down", + ".to_k_lora.up": ".k_proj.lora_linear_layer.up", + ".to_k_lora.down": ".k_proj.lora_linear_layer.down", + ".to_v_lora.up": ".v_proj.lora_linear_layer.up", + ".to_v_lora.down": ".v_proj.lora_linear_layer.down", + ".to_out_lora.up": ".out_proj.lora_linear_layer.up", + ".to_out_lora.down": ".out_proj.lora_linear_layer.down", + ".to_k.lora_magnitude_vector": ".k_proj.lora_magnitude_vector", + ".to_v.lora_magnitude_vector": ".v_proj.lora_magnitude_vector", + ".to_q.lora_magnitude_vector": ".q_proj.lora_magnitude_vector", + ".to_out.lora_magnitude_vector": ".out_proj.lora_magnitude_vector", +} + +PEFT_TO_KOHYA_SS = { + "lora_A": "lora_down", + "lora_B": "lora_up", + # This is not a comprehensive dict as kohya format requires replacing `.` with `_` in keys, + # adding prefixes and adding alpha values + # Check `convert_state_dict_to_kohya` for more +} + +PEFT_STATE_DICT_MAPPINGS = { + StateDictType.DIFFUSERS_OLD: DIFFUSERS_OLD_TO_PEFT, + StateDictType.DIFFUSERS: DIFFUSERS_TO_PEFT, +} + +DIFFUSERS_STATE_DICT_MAPPINGS = { + StateDictType.DIFFUSERS_OLD: DIFFUSERS_OLD_TO_DIFFUSERS, + StateDictType.PEFT: PEFT_TO_DIFFUSERS, +} + +KOHYA_STATE_DICT_MAPPINGS = {StateDictType.PEFT: PEFT_TO_KOHYA_SS} + +KEYS_TO_ALWAYS_REPLACE = { + ".processor.": ".", +} + + +def convert_state_dict(state_dict, mapping): + r""" + Simply iterates over the state dict and replaces the patterns in `mapping` with the corresponding values. + + Args: + state_dict (`dict[str, torch.Tensor]`): + The state dict to convert. + mapping (`dict[str, str]`): + The mapping to use for conversion, the mapping should be a dictionary with the following structure: + - key: the pattern to replace + - value: the pattern to replace with + + Returns: + converted_state_dict (`dict`) + The converted state dict. + """ + converted_state_dict = {} + for k, v in state_dict.items(): + # First, filter out the keys that we always want to replace + for pattern in KEYS_TO_ALWAYS_REPLACE.keys(): + if pattern in k: + new_pattern = KEYS_TO_ALWAYS_REPLACE[pattern] + k = k.replace(pattern, new_pattern) + + for pattern in mapping.keys(): + if pattern in k: + new_pattern = mapping[pattern] + k = k.replace(pattern, new_pattern) + break + converted_state_dict[k] = v + return converted_state_dict + + +def convert_state_dict_to_peft(state_dict, original_type=None, **kwargs): + r""" + Converts a state dict to the PEFT format The state dict can be from previous diffusers format (`OLD_DIFFUSERS`), or + new diffusers format (`DIFFUSERS`). The method only supports the conversion from diffusers old/new to PEFT for now. + + Args: + state_dict (`dict[str, torch.Tensor]`): + The state dict to convert. + original_type (`StateDictType`, *optional*): + The original type of the state dict, if not provided, the method will try to infer it automatically. + """ + if original_type is None: + # Old diffusers to PEFT + if any("to_out_lora" in k for k in state_dict.keys()): + original_type = StateDictType.DIFFUSERS_OLD + elif any("lora_linear_layer" in k for k in state_dict.keys()): + original_type = StateDictType.DIFFUSERS + else: + raise ValueError("Could not automatically infer state dict type") + + if original_type not in PEFT_STATE_DICT_MAPPINGS.keys(): + raise ValueError(f"Original type {original_type} is not supported") + + mapping = PEFT_STATE_DICT_MAPPINGS[original_type] + return convert_state_dict(state_dict, mapping) + + +def convert_state_dict_to_diffusers(state_dict, original_type=None, **kwargs): + r""" + Converts a state dict to new diffusers format. The state dict can be from previous diffusers format + (`OLD_DIFFUSERS`), or PEFT format (`PEFT`) or new diffusers format (`DIFFUSERS`). In the last case the method will + return the state dict as is. + + The method only supports the conversion from diffusers old, PEFT to diffusers new for now. + + Args: + state_dict (`dict[str, torch.Tensor]`): + The state dict to convert. + original_type (`StateDictType`, *optional*): + The original type of the state dict, if not provided, the method will try to infer it automatically. + kwargs (`dict`, *args*): + Additional arguments to pass to the method. + + - **adapter_name**: For example, in case of PEFT, some keys will be prepended + with the adapter name, therefore needs a special handling. By default PEFT also takes care of that in + `get_peft_model_state_dict` method: + https://github.com/huggingface/peft/blob/ba0477f2985b1ba311b83459d29895c809404e99/src/peft/utils/save_and_load.py#L92 + but we add it here in case we don't want to rely on that method. + """ + peft_adapter_name = kwargs.pop("adapter_name", None) + if peft_adapter_name is not None: + peft_adapter_name = "." + peft_adapter_name + else: + peft_adapter_name = "" + + if original_type is None: + # Old diffusers to PEFT + if any("to_out_lora" in k for k in state_dict.keys()): + original_type = StateDictType.DIFFUSERS_OLD + elif any(f".lora_A{peft_adapter_name}.weight" in k for k in state_dict.keys()): + original_type = StateDictType.PEFT + elif any("lora_linear_layer" in k for k in state_dict.keys()): + # nothing to do + return state_dict + else: + raise ValueError("Could not automatically infer state dict type") + + if original_type not in DIFFUSERS_STATE_DICT_MAPPINGS.keys(): + raise ValueError(f"Original type {original_type} is not supported") + + mapping = DIFFUSERS_STATE_DICT_MAPPINGS[original_type] + return convert_state_dict(state_dict, mapping) + + +def convert_unet_state_dict_to_peft(state_dict): + r""" + Converts a state dict from UNet format to diffusers format - i.e. by removing some keys + """ + mapping = UNET_TO_DIFFUSERS + return convert_state_dict(state_dict, mapping) + + +def convert_all_state_dict_to_peft(state_dict): + r""" + Attempts to first `convert_state_dict_to_peft`, and if it doesn't detect `lora_linear_layer` for a valid + `DIFFUSERS` LoRA for example, attempts to exclusively convert the Unet `convert_unet_state_dict_to_peft` + """ + try: + peft_dict = convert_state_dict_to_peft(state_dict) + except Exception as e: + if str(e) == "Could not automatically infer state dict type": + peft_dict = convert_unet_state_dict_to_peft(state_dict) + else: + raise + + if not any("lora_A" in key or "lora_B" in key for key in peft_dict.keys()): + raise ValueError("Your LoRA was not converted to PEFT") + + return peft_dict + + +def convert_state_dict_to_kohya(state_dict, original_type=None, **kwargs): + r""" + Converts a `PEFT` state dict to `Kohya` format that can be used in AUTOMATIC1111, ComfyUI, SD.Next, InvokeAI, etc. + The method only supports the conversion from PEFT to Kohya for now. + + Args: + state_dict (`dict[str, torch.Tensor]`): + The state dict to convert. + original_type (`StateDictType`, *optional*): + The original type of the state dict, if not provided, the method will try to infer it automatically. + kwargs (`dict`, *args*): + Additional arguments to pass to the method. + + - **adapter_name**: For example, in case of PEFT, some keys will be prepended + with the adapter name, therefore needs a special handling. By default PEFT also takes care of that in + `get_peft_model_state_dict` method: + https://github.com/huggingface/peft/blob/ba0477f2985b1ba311b83459d29895c809404e99/src/peft/utils/save_and_load.py#L92 + but we add it here in case we don't want to rely on that method. + """ + try: + import torch + except ImportError: + logger.error("Converting PEFT state dicts to Kohya requires torch to be installed.") + raise + + peft_adapter_name = kwargs.pop("adapter_name", None) + if peft_adapter_name is not None: + peft_adapter_name = "." + peft_adapter_name + else: + peft_adapter_name = "" + + if original_type is None: + if any(f".lora_A{peft_adapter_name}.weight" in k for k in state_dict.keys()): + original_type = StateDictType.PEFT + + if original_type not in KOHYA_STATE_DICT_MAPPINGS.keys(): + raise ValueError(f"Original type {original_type} is not supported") + + # Use the convert_state_dict function with the appropriate mapping + kohya_ss_partial_state_dict = convert_state_dict(state_dict, KOHYA_STATE_DICT_MAPPINGS[StateDictType.PEFT]) + kohya_ss_state_dict = {} + + # Additional logic for replacing header, alpha parameters `.` with `_` in all keys + for kohya_key, weight in kohya_ss_partial_state_dict.items(): + if "text_encoder_2." in kohya_key: + kohya_key = kohya_key.replace("text_encoder_2.", "lora_te2.") + elif "text_encoder." in kohya_key: + kohya_key = kohya_key.replace("text_encoder.", "lora_te1.") + elif "unet" in kohya_key: + kohya_key = kohya_key.replace("unet", "lora_unet") + elif "lora_magnitude_vector" in kohya_key: + kohya_key = kohya_key.replace("lora_magnitude_vector", "dora_scale") + + kohya_key = kohya_key.replace(".", "_", kohya_key.count(".") - 2) + kohya_key = kohya_key.replace(peft_adapter_name, "") # Kohya doesn't take names + kohya_ss_state_dict[kohya_key] = weight + if "lora_down" in kohya_key: + alpha_key = f"{kohya_key.split('.')[0]}.alpha" + kohya_ss_state_dict[alpha_key] = torch.tensor(len(weight)) + + return kohya_ss_state_dict + + +def state_dict_all_zero(state_dict, filter_str=None): + if filter_str is not None: + if isinstance(filter_str, str): + filter_str = [filter_str] + state_dict = {k: v for k, v in state_dict.items() if any(f in k for f in filter_str)} + + return all(torch.all(param == 0).item() for param in state_dict.values()) + + +def _load_sft_state_dict_metadata(model_file: str): + import safetensors.torch + + from ..loaders.lora_base import LORA_ADAPTER_METADATA_KEY + + with safetensors.torch.safe_open(model_file, framework="pt", device="cpu") as f: + metadata = f.metadata() or {} + + metadata.pop("format", None) + if metadata: + raw = metadata.get(LORA_ADAPTER_METADATA_KEY) + return json.loads(raw) if raw else None + else: + return None diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/testing_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/testing_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..3297bb5fdcd62d2ca4b3879ee7cdb259179d5582 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/testing_utils.py @@ -0,0 +1,1614 @@ +import functools +import glob +import importlib +import importlib.metadata +import inspect +import io +import logging +import multiprocessing +import os +import random +import re +import struct +import sys +import tempfile +import time +import unittest +import urllib.parse +from collections import UserDict +from contextlib import contextmanager +from io import BytesIO, StringIO +from pathlib import Path +from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Set, Tuple, Union + +import numpy as np +import PIL.Image +import PIL.ImageOps +import requests +from numpy.linalg import norm +from packaging import version + +from .constants import DIFFUSERS_REQUEST_TIMEOUT +from .import_utils import ( + BACKENDS_MAPPING, + is_accelerate_available, + is_bitsandbytes_available, + is_compel_available, + is_flax_available, + is_gguf_available, + is_kernels_available, + is_note_seq_available, + is_nvidia_modelopt_available, + is_onnx_available, + is_opencv_available, + is_optimum_quanto_available, + is_peft_available, + is_timm_available, + is_torch_available, + is_torch_version, + is_torchao_available, + is_torchsde_available, + is_transformers_available, +) +from .logging import get_logger + + +if is_torch_available(): + import torch + + IS_ROCM_SYSTEM = torch.version.hip is not None + IS_CUDA_SYSTEM = torch.version.cuda is not None + IS_XPU_SYSTEM = getattr(torch.version, "xpu", None) is not None +else: + IS_ROCM_SYSTEM = False + IS_CUDA_SYSTEM = False + IS_XPU_SYSTEM = False + +global_rng = random.Random() + +logger = get_logger(__name__) +logger.warning( + "diffusers.utils.testing_utils' is deprecated and will be removed in a future version. " + "Determinism and device backend utilities have been moved to `diffusers.utils.torch_utils`. " +) +_required_peft_version = is_peft_available() and version.parse( + version.parse(importlib.metadata.version("peft")).base_version +) > version.parse("0.5") +_required_transformers_version = is_transformers_available() and version.parse( + version.parse(importlib.metadata.version("transformers")).base_version +) > version.parse("4.33") + +USE_PEFT_BACKEND = _required_peft_version and _required_transformers_version +BIG_GPU_MEMORY = int(os.getenv("BIG_GPU_MEMORY", 40)) + +if is_torch_available(): + import torch + + # Set a backend environment variable for any extra module import required for a custom accelerator + if "DIFFUSERS_TEST_BACKEND" in os.environ: + backend = os.environ["DIFFUSERS_TEST_BACKEND"] + try: + _ = importlib.import_module(backend) + except ModuleNotFoundError as e: + raise ModuleNotFoundError( + f"Failed to import `DIFFUSERS_TEST_BACKEND` '{backend}'! This should be the name of an installed module \ + to enable a specified backend.):\n{e}" + ) from e + + if "DIFFUSERS_TEST_DEVICE" in os.environ: + torch_device = os.environ["DIFFUSERS_TEST_DEVICE"] + try: + # try creating device to see if provided device is valid + _ = torch.device(torch_device) + except RuntimeError as e: + raise RuntimeError( + f"Unknown testing device specified by environment variable `DIFFUSERS_TEST_DEVICE`: {torch_device}" + ) from e + logger.info(f"torch_device overrode to {torch_device}") + else: + if torch.cuda.is_available(): + torch_device = "cuda" + elif torch.xpu.is_available(): + torch_device = "xpu" + else: + torch_device = "cpu" + is_torch_higher_equal_than_1_12 = version.parse( + version.parse(torch.__version__).base_version + ) >= version.parse("1.12") + + if is_torch_higher_equal_than_1_12: + # Some builds of torch 1.12 don't have the mps backend registered. See #892 for more details + mps_backend_registered = hasattr(torch.backends, "mps") + torch_device = "mps" if (mps_backend_registered and torch.backends.mps.is_available()) else torch_device + + from .torch_utils import get_torch_cuda_device_capability + + +def torch_all_close(a, b, *args, **kwargs): + if not is_torch_available(): + raise ValueError("PyTorch needs to be installed to use this function.") + if not torch.allclose(a, b, *args, **kwargs): + assert False, f"Max diff is absolute {(a - b).abs().max()}. Diff tensor is {(a - b).abs()}." + return True + + +def numpy_cosine_similarity_distance(a, b): + similarity = np.dot(a, b) / (norm(a) * norm(b)) + distance = 1.0 - similarity.mean() + + return distance + + +def check_if_dicts_are_equal(dict1, dict2): + dict1, dict2 = dict1.copy(), dict2.copy() + + for key, value in dict1.items(): + if isinstance(value, set): + dict1[key] = sorted(value) + for key, value in dict2.items(): + if isinstance(value, set): + dict2[key] = sorted(value) + + for key in dict1: + if key not in dict2: + return False + if dict1[key] != dict2[key]: + return False + + for key in dict2: + if key not in dict1: + return False + + return True + + +def print_tensor_test( + tensor, + limit_to_slices=None, + max_torch_print=None, + filename="test_corrections.txt", + expected_tensor_name="expected_slice", +): + if max_torch_print: + torch.set_printoptions(threshold=10_000) + + test_name = os.environ.get("PYTEST_CURRENT_TEST") + if not torch.is_tensor(tensor): + tensor = torch.from_numpy(tensor) + if limit_to_slices: + tensor = tensor[0, -3:, -3:, -1] + + tensor_str = str(tensor.detach().cpu().flatten().to(torch.float32)).replace("\n", "") + # format is usually: + # expected_slice = np.array([-0.5713, -0.3018, -0.9814, 0.04663, -0.879, 0.76, -1.734, 0.1044, 1.161]) + output_str = tensor_str.replace("tensor", f"{expected_tensor_name} = np.array") + test_file, test_class, test_fn = test_name.split("::") + test_fn = test_fn.split()[0] + with open(filename, "a") as f: + print("::".join([test_file, test_class, test_fn, output_str]), file=f) + + +def get_tests_dir(append_path=None): + """ + Args: + append_path: optional path to append to the tests dir path + Return: + The full path to the `tests` dir, so that the tests can be invoked from anywhere. Optionally `append_path` is + joined after the `tests` dir the former is provided. + """ + # this function caller's __file__ + caller__file__ = inspect.stack()[1][1] + tests_dir = os.path.abspath(os.path.dirname(caller__file__)) + + while not tests_dir.endswith("tests"): + tests_dir = os.path.dirname(tests_dir) + + if append_path: + return Path(tests_dir, append_path).as_posix() + else: + return tests_dir + + +# Taken from the following PR: +# https://github.com/huggingface/accelerate/pull/1964 +def str_to_bool(value) -> int: + """ + Converts a string representation of truth to `True` (1) or `False` (0). True values are `y`, `yes`, `t`, `true`, + `on`, and `1`; False value are `n`, `no`, `f`, `false`, `off`, and `0`; + """ + value = value.lower() + if value in ("y", "yes", "t", "true", "on", "1"): + return 1 + elif value in ("n", "no", "f", "false", "off", "0"): + return 0 + else: + raise ValueError(f"invalid truth value {value}") + + +def parse_flag_from_env(key, default=False): + try: + value = os.environ[key] + except KeyError: + # KEY isn't set, default to `default`. + _value = default + else: + # KEY is set, convert it to True or False. + try: + _value = str_to_bool(value) + except ValueError: + # More values are supported, but let's keep the message simple. + raise ValueError(f"If set, {key} must be yes or no.") + return _value + + +_run_slow_tests = parse_flag_from_env("RUN_SLOW", default=False) +_run_nightly_tests = parse_flag_from_env("RUN_NIGHTLY", default=False) +_run_compile_tests = parse_flag_from_env("RUN_COMPILE", default=False) + + +def floats_tensor(shape, scale=1.0, rng=None, name=None): + """Creates a random float32 tensor""" + if rng is None: + rng = global_rng + + total_dims = 1 + for dim in shape: + total_dims *= dim + + values = [] + for _ in range(total_dims): + values.append(rng.random() * scale) + + return torch.tensor(data=values, dtype=torch.float).view(shape).contiguous() + + +def slow(test_case): + """ + Decorator marking a test as slow. + + Slow tests are skipped by default. Set the RUN_SLOW environment variable to a truthy value to run them. + + """ + return unittest.skipUnless(_run_slow_tests, "test is slow")(test_case) + + +def nightly(test_case): + """ + Decorator marking a test that runs nightly in the diffusers CI. + + Slow tests are skipped by default. Set the RUN_NIGHTLY environment variable to a truthy value to run them. + + """ + return unittest.skipUnless(_run_nightly_tests, "test is nightly")(test_case) + + +def is_torch_compile(test_case): + """ + Decorator marking a test that runs compile tests in the diffusers CI. + + Compile tests are skipped by default. Set the RUN_COMPILE environment variable to a truthy value to run them. + + """ + return unittest.skipUnless(_run_compile_tests, "test is torch compile")(test_case) + + +def require_torch(test_case): + """ + Decorator marking a test that requires PyTorch. These tests are skipped when PyTorch isn't installed. + """ + return unittest.skipUnless(is_torch_available(), "test requires PyTorch")(test_case) + + +def require_torch_2(test_case): + """ + Decorator marking a test that requires PyTorch 2. These tests are skipped when it isn't installed. + """ + return unittest.skipUnless(is_torch_available() and is_torch_version(">=", "2.0.0"), "test requires PyTorch 2")( + test_case + ) + + +def require_torch_version_greater_equal(torch_version): + """Decorator marking a test that requires torch with a specific version or greater.""" + + def decorator(test_case): + correct_torch_version = is_torch_available() and is_torch_version(">=", torch_version) + return unittest.skipUnless( + correct_torch_version, f"test requires torch with the version greater than or equal to {torch_version}" + )(test_case) + + return decorator + + +def require_torch_version_greater(torch_version): + """Decorator marking a test that requires torch with a specific version greater.""" + + def decorator(test_case): + correct_torch_version = is_torch_available() and is_torch_version(">", torch_version) + return unittest.skipUnless( + correct_torch_version, f"test requires torch with the version greater than {torch_version}" + )(test_case) + + return decorator + + +def require_torch_gpu(test_case): + """Decorator marking a test that requires CUDA and PyTorch.""" + return unittest.skipUnless(is_torch_available() and torch_device == "cuda", "test requires PyTorch+CUDA")( + test_case + ) + + +def require_torch_cuda_compatibility(expected_compute_capability): + def decorator(test_case): + if torch.cuda.is_available(): + current_compute_capability = get_torch_cuda_device_capability() + return unittest.skipUnless( + float(current_compute_capability) == float(expected_compute_capability), + "Test not supported for this compute capability.", + ) + + return decorator + + +# These decorators are for accelerator-specific behaviours that are not GPU-specific +def require_torch_accelerator(test_case): + """Decorator marking a test that requires an accelerator backend and PyTorch.""" + return unittest.skipUnless(is_torch_available() and torch_device != "cpu", "test requires accelerator+PyTorch")( + test_case + ) + + +def require_torch_multi_gpu(test_case): + """ + Decorator marking a test that requires a multi-GPU setup (in PyTorch). These tests are skipped on a machine without + multiple GPUs. To run *only* the multi_gpu tests, assuming all test names contain multi_gpu: $ pytest -sv ./tests + -k "multi_gpu" + """ + if not is_torch_available(): + return unittest.skip("test requires PyTorch")(test_case) + + import torch + + return unittest.skipUnless(torch.cuda.device_count() > 1, "test requires multiple GPUs")(test_case) + + +def require_torch_multi_accelerator(test_case): + """ + Decorator marking a test that requires a multi-accelerator setup (in PyTorch). These tests are skipped on a machine + without multiple hardware accelerators. + """ + if not is_torch_available(): + return unittest.skip("test requires PyTorch")(test_case) + + import torch + + return unittest.skipUnless( + torch.cuda.device_count() > 1 or torch.xpu.device_count() > 1, "test requires multiple hardware accelerators" + )(test_case) + + +def require_torch_accelerator_with_fp16(test_case): + """Decorator marking a test that requires an accelerator with support for the FP16 data type.""" + return unittest.skipUnless(_is_torch_fp16_available(torch_device), "test requires accelerator with fp16 support")( + test_case + ) + + +def require_torch_accelerator_with_fp64(test_case): + """Decorator marking a test that requires an accelerator with support for the FP64 data type.""" + return unittest.skipUnless(_is_torch_fp64_available(torch_device), "test requires accelerator with fp64 support")( + test_case + ) + + +def require_big_gpu_with_torch_cuda(test_case): + """ + Decorator marking a test that requires a bigger GPU (24GB) for execution. Some example pipelines: Flux, SD3, Cog, + etc. + """ + if not is_torch_available(): + return unittest.skip("test requires PyTorch")(test_case) + + import torch + + if not torch.cuda.is_available(): + return unittest.skip("test requires PyTorch CUDA")(test_case) + + device_properties = torch.cuda.get_device_properties(0) + total_memory = device_properties.total_memory / (1024**3) + return unittest.skipUnless( + total_memory >= BIG_GPU_MEMORY, f"test requires a GPU with at least {BIG_GPU_MEMORY} GB memory" + )(test_case) + + +def require_big_accelerator(test_case): + """ + Decorator marking a test that requires a bigger hardware accelerator (24GB) for execution. Some example pipelines: + Flux, SD3, Cog, etc. + """ + import pytest + + test_case = pytest.mark.big_accelerator(test_case) + + if not is_torch_available(): + return unittest.skip("test requires PyTorch")(test_case) + + import torch + + if not (torch.cuda.is_available() or torch.xpu.is_available()): + return unittest.skip("test requires PyTorch CUDA")(test_case) + + if torch.xpu.is_available(): + device_properties = torch.xpu.get_device_properties(0) + else: + device_properties = torch.cuda.get_device_properties(0) + + total_memory = device_properties.total_memory / (1024**3) + return unittest.skipUnless( + total_memory >= BIG_GPU_MEMORY, + f"test requires a hardware accelerator with at least {BIG_GPU_MEMORY} GB memory", + )(test_case) + + +def require_torch_accelerator_with_training(test_case): + """Decorator marking a test that requires an accelerator with support for training.""" + return unittest.skipUnless( + is_torch_available() and backend_supports_training(torch_device), + "test requires accelerator with training support", + )(test_case) + + +def skip_mps(test_case): + """Decorator marking a test to skip if torch_device is 'mps'""" + return unittest.skipUnless(torch_device != "mps", "test requires non 'mps' device")(test_case) + + +def require_flax(test_case): + """ + Decorator marking a test that requires JAX & Flax. These tests are skipped when one / both are not installed + """ + return unittest.skipUnless(is_flax_available(), "test requires JAX & Flax")(test_case) + + +def require_compel(test_case): + """ + Decorator marking a test that requires compel: https://github.com/damian0815/compel. These tests are skipped when + the library is not installed. + """ + return unittest.skipUnless(is_compel_available(), "test requires compel")(test_case) + + +def require_onnxruntime(test_case): + """ + Decorator marking a test that requires onnxruntime. These tests are skipped when onnxruntime isn't installed. + """ + return unittest.skipUnless(is_onnx_available(), "test requires onnxruntime")(test_case) + + +def require_note_seq(test_case): + """ + Decorator marking a test that requires note_seq. These tests are skipped when note_seq isn't installed. + """ + return unittest.skipUnless(is_note_seq_available(), "test requires note_seq")(test_case) + + +def require_accelerator(test_case): + """ + Decorator marking a test that requires a hardware accelerator backend. These tests are skipped when there are no + hardware accelerator available. + """ + return unittest.skipUnless(torch_device != "cpu", "test requires a hardware accelerator")(test_case) + + +def require_torchsde(test_case): + """ + Decorator marking a test that requires torchsde. These tests are skipped when torchsde isn't installed. + """ + return unittest.skipUnless(is_torchsde_available(), "test requires torchsde")(test_case) + + +def require_peft_backend(test_case): + """ + Decorator marking a test that requires PEFT backend, this would require some specific versions of PEFT and + transformers. + """ + return unittest.skipUnless(USE_PEFT_BACKEND, "test requires PEFT backend")(test_case) + + +def require_timm(test_case): + """ + Decorator marking a test that requires timm. These tests are skipped when timm isn't installed. + """ + return unittest.skipUnless(is_timm_available(), "test requires timm")(test_case) + + +def require_bitsandbytes(test_case): + """ + Decorator marking a test that requires bitsandbytes. These tests are skipped when bitsandbytes isn't installed. + """ + return unittest.skipUnless(is_bitsandbytes_available(), "test requires bitsandbytes")(test_case) + + +def require_quanto(test_case): + """ + Decorator marking a test that requires quanto. These tests are skipped when quanto isn't installed. + """ + return unittest.skipUnless(is_optimum_quanto_available(), "test requires quanto")(test_case) + + +def require_accelerate(test_case): + """ + Decorator marking a test that requires accelerate. These tests are skipped when accelerate isn't installed. + """ + return unittest.skipUnless(is_accelerate_available(), "test requires accelerate")(test_case) + + +def require_peft_version_greater(peft_version): + """ + Decorator marking a test that requires PEFT backend with a specific version, this would require some specific + versions of PEFT and transformers. + """ + + def decorator(test_case): + correct_peft_version = is_peft_available() and version.parse( + version.parse(importlib.metadata.version("peft")).base_version + ) > version.parse(peft_version) + return unittest.skipUnless( + correct_peft_version, f"test requires PEFT backend with the version greater than {peft_version}" + )(test_case) + + return decorator + + +def require_transformers_version_greater(transformers_version): + """ + Decorator marking a test that requires transformers with a specific version, this would require some specific + versions of PEFT and transformers. + """ + + def decorator(test_case): + correct_transformers_version = is_transformers_available() and version.parse( + version.parse(importlib.metadata.version("transformers")).base_version + ) > version.parse(transformers_version) + return unittest.skipUnless( + correct_transformers_version, + f"test requires transformers with the version greater than {transformers_version}", + )(test_case) + + return decorator + + +def require_accelerate_version_greater(accelerate_version): + def decorator(test_case): + correct_accelerate_version = is_accelerate_available() and version.parse( + version.parse(importlib.metadata.version("accelerate")).base_version + ) > version.parse(accelerate_version) + return unittest.skipUnless( + correct_accelerate_version, f"Test requires accelerate with the version greater than {accelerate_version}." + )(test_case) + + return decorator + + +def require_bitsandbytes_version_greater(bnb_version): + def decorator(test_case): + correct_bnb_version = is_bitsandbytes_available() and version.parse( + version.parse(importlib.metadata.version("bitsandbytes")).base_version + ) > version.parse(bnb_version) + return unittest.skipUnless( + correct_bnb_version, f"Test requires bitsandbytes with the version greater than {bnb_version}." + )(test_case) + + return decorator + + +def require_hf_hub_version_greater(hf_hub_version): + def decorator(test_case): + correct_hf_hub_version = version.parse( + version.parse(importlib.metadata.version("huggingface_hub")).base_version + ) > version.parse(hf_hub_version) + return unittest.skipUnless( + correct_hf_hub_version, f"Test requires huggingface_hub with the version greater than {hf_hub_version}." + )(test_case) + + return decorator + + +def require_gguf_version_greater_or_equal(gguf_version): + def decorator(test_case): + correct_gguf_version = is_gguf_available() and version.parse( + version.parse(importlib.metadata.version("gguf")).base_version + ) >= version.parse(gguf_version) + return unittest.skipUnless( + correct_gguf_version, f"Test requires gguf with the version greater than {gguf_version}." + )(test_case) + + return decorator + + +def require_torchao_version_greater_or_equal(torchao_version): + def decorator(test_case): + correct_torchao_version = is_torchao_available() and version.parse( + version.parse(importlib.metadata.version("torchao")).base_version + ) >= version.parse(torchao_version) + return unittest.skipUnless( + correct_torchao_version, f"Test requires torchao with version greater than {torchao_version}." + )(test_case) + + return decorator + + +def require_modelopt_version_greater_or_equal(modelopt_version): + def decorator(test_case): + correct_nvidia_modelopt_version = is_nvidia_modelopt_available() and version.parse( + version.parse(importlib.metadata.version("modelopt")).base_version + ) >= version.parse(modelopt_version) + return unittest.skipUnless( + correct_nvidia_modelopt_version, f"Test requires modelopt with version greater than {modelopt_version}." + )(test_case) + + return decorator + + +def require_kernels_version_greater_or_equal(kernels_version): + def decorator(test_case): + correct_kernels_version = is_kernels_available() and version.parse( + version.parse(importlib.metadata.version("kernels")).base_version + ) >= version.parse(kernels_version) + return unittest.skipUnless( + correct_kernels_version, f"Test requires kernels with version greater than {kernels_version}." + )(test_case) + + return decorator + + +def deprecate_after_peft_backend(test_case): + """ + Decorator marking a test that will be skipped after PEFT backend + """ + return unittest.skipUnless(not USE_PEFT_BACKEND, "test skipped in favor of PEFT backend")(test_case) + + +def get_python_version(): + sys_info = sys.version_info + major, minor = sys_info.major, sys_info.minor + return major, minor + + +def load_numpy(arry: Union[str, np.ndarray], local_path: Optional[str] = None) -> np.ndarray: + if isinstance(arry, str): + if local_path is not None: + # local_path can be passed to correct images of tests + return Path(local_path, arry.split("/")[-5], arry.split("/")[-2], arry.split("/")[-1]).as_posix() + elif arry.startswith("http://") or arry.startswith("https://"): + response = requests.get(arry, timeout=DIFFUSERS_REQUEST_TIMEOUT) + response.raise_for_status() + arry = np.load(BytesIO(response.content)) + elif os.path.isfile(arry): + arry = np.load(arry) + else: + raise ValueError( + f"Incorrect path or url, URLs must start with `http://` or `https://`, and {arry} is not a valid path" + ) + elif isinstance(arry, np.ndarray): + pass + else: + raise ValueError( + "Incorrect format used for numpy ndarray. Should be an url linking to an image, a local path, or a" + " ndarray." + ) + + return arry + + +def load_pt(url: str, map_location: Optional[str] = None, weights_only: Optional[bool] = True): + response = requests.get(url, timeout=DIFFUSERS_REQUEST_TIMEOUT) + response.raise_for_status() + arry = torch.load(BytesIO(response.content), map_location=map_location, weights_only=weights_only) + return arry + + +def load_image(image: Union[str, PIL.Image.Image]) -> PIL.Image.Image: + """ + Loads `image` to a PIL Image. + + Args: + image (`str` or `PIL.Image.Image`): + The image to convert to the PIL Image format. + Returns: + `PIL.Image.Image`: + A PIL Image. + """ + if isinstance(image, str): + if image.startswith("http://") or image.startswith("https://"): + image = PIL.Image.open(requests.get(image, stream=True, timeout=DIFFUSERS_REQUEST_TIMEOUT).raw) + elif os.path.isfile(image): + image = PIL.Image.open(image) + else: + raise ValueError( + f"Incorrect path or url, URLs must start with `http://` or `https://`, and {image} is not a valid path" + ) + elif isinstance(image, PIL.Image.Image): + image = image + else: + raise ValueError( + "Incorrect format used for image. Should be an url linking to an image, a local path, or a PIL image." + ) + image = PIL.ImageOps.exif_transpose(image) + image = image.convert("RGB") + return image + + +def preprocess_image(image: PIL.Image, batch_size: int): + w, h = image.size + w, h = (x - x % 8 for x in (w, h)) # resize to integer multiple of 8 + image = image.resize((w, h), resample=PIL.Image.LANCZOS) + image = np.array(image).astype(np.float32) / 255.0 + image = np.vstack([image[None].transpose(0, 3, 1, 2)] * batch_size) + image = torch.from_numpy(image) + return 2.0 * image - 1.0 + + +def export_to_gif(image: List[PIL.Image.Image], output_gif_path: str = None) -> str: + if output_gif_path is None: + output_gif_path = tempfile.NamedTemporaryFile(suffix=".gif").name + + image[0].save( + output_gif_path, + save_all=True, + append_images=image[1:], + optimize=False, + duration=100, + loop=0, + ) + return output_gif_path + + +@contextmanager +def buffered_writer(raw_f): + f = io.BufferedWriter(raw_f) + yield f + f.flush() + + +def export_to_ply(mesh, output_ply_path: str = None): + """ + Write a PLY file for a mesh. + """ + if output_ply_path is None: + output_ply_path = tempfile.NamedTemporaryFile(suffix=".ply").name + + coords = mesh.verts.detach().cpu().numpy() + faces = mesh.faces.cpu().numpy() + rgb = np.stack([mesh.vertex_channels[x].detach().cpu().numpy() for x in "RGB"], axis=1) + + with buffered_writer(open(output_ply_path, "wb")) as f: + f.write(b"ply\n") + f.write(b"format binary_little_endian 1.0\n") + f.write(bytes(f"element vertex {len(coords)}\n", "ascii")) + f.write(b"property float x\n") + f.write(b"property float y\n") + f.write(b"property float z\n") + if rgb is not None: + f.write(b"property uchar red\n") + f.write(b"property uchar green\n") + f.write(b"property uchar blue\n") + if faces is not None: + f.write(bytes(f"element face {len(faces)}\n", "ascii")) + f.write(b"property list uchar int vertex_index\n") + f.write(b"end_header\n") + + if rgb is not None: + rgb = (rgb * 255.499).round().astype(int) + vertices = [ + (*coord, *rgb) + for coord, rgb in zip( + coords.tolist(), + rgb.tolist(), + ) + ] + format = struct.Struct("<3f3B") + for item in vertices: + f.write(format.pack(*item)) + else: + format = struct.Struct("<3f") + for vertex in coords.tolist(): + f.write(format.pack(*vertex)) + + if faces is not None: + for tri in faces.tolist(): + f.write(format.pack(len(tri), *tri)) + format = struct.Struct(" str: + if is_opencv_available(): + import cv2 + else: + raise ImportError(BACKENDS_MAPPING["opencv"][1].format("export_to_video")) + if output_video_path is None: + output_video_path = tempfile.NamedTemporaryFile(suffix=".mp4").name + + fourcc = cv2.VideoWriter_fourcc(*"mp4v") + h, w, c = video_frames[0].shape + video_writer = cv2.VideoWriter(output_video_path, fourcc, fps=8, frameSize=(w, h)) + for i in range(len(video_frames)): + img = cv2.cvtColor(video_frames[i], cv2.COLOR_RGB2BGR) + video_writer.write(img) + return output_video_path + + +def load_hf_numpy(path) -> np.ndarray: + base_url = "https://huggingface.co/datasets/fusing/diffusers-testing/resolve/main" + + if not path.startswith("http://") and not path.startswith("https://"): + path = os.path.join(base_url, urllib.parse.quote(path)) + + return load_numpy(path) + + +# --- pytest conf functions --- # + +# to avoid multiple invocation from tests/conftest.py and examples/conftest.py - make sure it's called only once +pytest_opt_registered = {} + + +def pytest_addoption_shared(parser): + """ + This function is to be called from `conftest.py` via `pytest_addoption` wrapper that has to be defined there. + + It allows loading both `conftest.py` files at once without causing a failure due to adding the same `pytest` + option. + + """ + option = "--make-reports" + if option not in pytest_opt_registered: + parser.addoption( + option, + action="store", + default=False, + help="generate report files. The value of this option is used as a prefix to report names", + ) + pytest_opt_registered[option] = 1 + + +def pytest_terminal_summary_main(tr, id): + """ + Generate multiple reports at the end of test suite run - each report goes into a dedicated file in the current + directory. The report files are prefixed with the test suite name. + + This function emulates --duration and -rA pytest arguments. + + This function is to be called from `conftest.py` via `pytest_terminal_summary` wrapper that has to be defined + there. + + Args: + - tr: `terminalreporter` passed from `conftest.py` + - id: unique id like `tests` or `examples` that will be incorporated into the final reports filenames - this is + needed as some jobs have multiple runs of pytest, so we can't have them overwrite each other. + + NB: this functions taps into a private _pytest API and while unlikely, it could break should + pytest do internal changes - also it calls default internal methods of terminalreporter which + can be hijacked by various `pytest-` plugins and interfere. + + """ + from _pytest.config import create_terminal_writer + + if not len(id): + id = "tests" + + config = tr.config + orig_writer = config.get_terminal_writer() + orig_tbstyle = config.option.tbstyle + orig_reportchars = tr.reportchars + + dir = "reports" + Path(dir).mkdir(parents=True, exist_ok=True) + report_files = { + k: f"{dir}/{id}_{k}.txt" + for k in [ + "durations", + "errors", + "failures_long", + "failures_short", + "failures_line", + "passes", + "stats", + "summary_short", + "warnings", + ] + } + + # custom durations report + # note: there is no need to call pytest --durations=XX to get this separate report + # adapted from https://github.com/pytest-dev/pytest/blob/897f151e/src/_pytest/runner.py#L66 + dlist = [] + for replist in tr.stats.values(): + for rep in replist: + if hasattr(rep, "duration"): + dlist.append(rep) + if dlist: + dlist.sort(key=lambda x: x.duration, reverse=True) + with open(report_files["durations"], "w") as f: + durations_min = 0.05 # sec + f.write("slowest durations\n") + for i, rep in enumerate(dlist): + if rep.duration < durations_min: + f.write(f"{len(dlist) - i} durations < {durations_min} secs were omitted") + break + f.write(f"{rep.duration:02.2f}s {rep.when:<8} {rep.nodeid}\n") + + def summary_failures_short(tr): + # expecting that the reports were --tb=long (default) so we chop them off here to the last frame + reports = tr.getreports("failed") + if not reports: + return + tr.write_sep("=", "FAILURES SHORT STACK") + for rep in reports: + msg = tr._getfailureheadline(rep) + tr.write_sep("_", msg, red=True, bold=True) + # chop off the optional leading extra frames, leaving only the last one + longrepr = re.sub(r".*_ _ _ (_ ){10,}_ _ ", "", rep.longreprtext, 0, re.M | re.S) + tr._tw.line(longrepr) + # note: not printing out any rep.sections to keep the report short + + # use ready-made report funcs, we are just hijacking the filehandle to log to a dedicated file each + # adapted from https://github.com/pytest-dev/pytest/blob/897f151e/src/_pytest/terminal.py#L814 + # note: some pytest plugins may interfere by hijacking the default `terminalreporter` (e.g. + # pytest-instafail does that) + + # report failures with line/short/long styles + config.option.tbstyle = "auto" # full tb + with open(report_files["failures_long"], "w") as f: + tr._tw = create_terminal_writer(config, f) + tr.summary_failures() + + # config.option.tbstyle = "short" # short tb + with open(report_files["failures_short"], "w") as f: + tr._tw = create_terminal_writer(config, f) + summary_failures_short(tr) + + config.option.tbstyle = "line" # one line per error + with open(report_files["failures_line"], "w") as f: + tr._tw = create_terminal_writer(config, f) + tr.summary_failures() + + with open(report_files["errors"], "w") as f: + tr._tw = create_terminal_writer(config, f) + tr.summary_errors() + + with open(report_files["warnings"], "w") as f: + tr._tw = create_terminal_writer(config, f) + tr.summary_warnings() # normal warnings + tr.summary_warnings() # final warnings + + tr.reportchars = "wPpsxXEf" # emulate -rA (used in summary_passes() and short_test_summary()) + with open(report_files["passes"], "w") as f: + tr._tw = create_terminal_writer(config, f) + tr.summary_passes() + + with open(report_files["summary_short"], "w") as f: + tr._tw = create_terminal_writer(config, f) + tr.short_test_summary() + + with open(report_files["stats"], "w") as f: + tr._tw = create_terminal_writer(config, f) + tr.summary_stats() + + # restore: + tr._tw = orig_writer + tr.reportchars = orig_reportchars + config.option.tbstyle = orig_tbstyle + + +# Adapted from https://github.com/huggingface/transformers/blob/000e52aec8850d3fe2f360adc6fd256e5b47fe4c/src/transformers/testing_utils.py#L1905 +def is_flaky(max_attempts: int = 5, wait_before_retry: Optional[float] = None, description: Optional[str] = None): + """ + To decorate flaky tests (methods or entire classes). They will be retried on failures. + + Args: + max_attempts (`int`, *optional*, defaults to 5): + The maximum number of attempts to retry the flaky test. + wait_before_retry (`float`, *optional*): + If provided, will wait that number of seconds before retrying the test. + description (`str`, *optional*): + A string to describe the situation (what / where / why is flaky, link to GH issue/PR comments, errors, + etc.) + """ + + def decorator(obj): + # If decorating a class, wrap each test method on it + if inspect.isclass(obj): + for attr_name, attr_value in list(obj.__dict__.items()): + if callable(attr_value) and attr_name.startswith("test"): + # recursively decorate the method + setattr(obj, attr_name, decorator(attr_value)) + return obj + + # Otherwise we're decorating a single test function / method + @functools.wraps(obj) + def wrapper(*args, **kwargs): + retry_count = 1 + while retry_count < max_attempts: + try: + return obj(*args, **kwargs) + except Exception as err: + msg = ( + f"[FLAKY] {description or obj.__name__!r} " + f"failed on attempt {retry_count}/{max_attempts}: {err}" + ) + print(msg, file=sys.stderr) + if wait_before_retry is not None: + time.sleep(wait_before_retry) + retry_count += 1 + + return obj(*args, **kwargs) + + return wrapper + + return decorator + + +# Taken from: https://github.com/huggingface/transformers/blob/3658488ff77ff8d45101293e749263acf437f4d5/src/transformers/testing_utils.py#L1787 +def run_test_in_subprocess(test_case, target_func, inputs=None, timeout=None): + """ + To run a test in a subprocess. In particular, this can avoid (GPU) memory issue. + + Args: + test_case (`unittest.TestCase`): + The test that will run `target_func`. + target_func (`Callable`): + The function implementing the actual testing logic. + inputs (`dict`, *optional*, defaults to `None`): + The inputs that will be passed to `target_func` through an (input) queue. + timeout (`int`, *optional*, defaults to `None`): + The timeout (in seconds) that will be passed to the input and output queues. If not specified, the env. + variable `PYTEST_TIMEOUT` will be checked. If still `None`, its value will be set to `600`. + """ + if timeout is None: + timeout = int(os.environ.get("PYTEST_TIMEOUT", 600)) + + start_methohd = "spawn" + ctx = multiprocessing.get_context(start_methohd) + + input_queue = ctx.Queue(1) + output_queue = ctx.JoinableQueue(1) + + # We can't send `unittest.TestCase` to the child, otherwise we get issues regarding pickle. + input_queue.put(inputs, timeout=timeout) + + process = ctx.Process(target=target_func, args=(input_queue, output_queue, timeout)) + process.start() + # Kill the child process if we can't get outputs from it in time: otherwise, the hanging subprocess prevents + # the test to exit properly. + try: + results = output_queue.get(timeout=timeout) + output_queue.task_done() + except Exception as e: + process.terminate() + test_case.fail(e) + process.join(timeout=timeout) + + if results["error"] is not None: + test_case.fail(f"{results['error']}") + + +class CaptureLogger: + """ + Args: + Context manager to capture `logging` streams + logger: 'logging` logger object + Returns: + The captured output is available via `self.out` + Example: + ```python + >>> from diffusers import logging + >>> from diffusers.testing_utils import CaptureLogger + + >>> msg = "Testing 1, 2, 3" + >>> logging.set_verbosity_info() + >>> logger = logging.get_logger("diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.py") + >>> with CaptureLogger(logger) as cl: + ... logger.info(msg) + >>> assert cl.out, msg + "\n" + ``` + """ + + def __init__(self, logger): + self.logger = logger + self.io = StringIO() + self.sh = logging.StreamHandler(self.io) + self.out = "" + + def __enter__(self): + self.logger.addHandler(self.sh) + return self + + def __exit__(self, *exc): + self.logger.removeHandler(self.sh) + self.out = self.io.getvalue() + + def __repr__(self): + return f"captured: {self.out}\n" + + +def enable_full_determinism(): + """ + Helper function for reproducible behavior during distributed training. See + - https://pytorch.org/docs/stable/notes/randomness.html for pytorch + """ + from .torch_utils import enable_full_determinism as _enable_full_determinism + + logger.warning( + "enable_full_determinism has been moved to diffusers.utils.torch_utils. " + "Importing from diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _enable_full_determinism() + + +def disable_full_determinism(): + from .torch_utils import disable_full_determinism as _disable_full_determinism + + logger.warning( + "disable_full_determinism has been moved to diffusers.utils.torch_utils. " + "Importing from diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _disable_full_determinism() + + +# Utils for custom and alternative accelerator devices +def _is_torch_fp16_available(device): + if not is_torch_available(): + return False + + import torch + + device = torch.device(device) + + try: + x = torch.zeros((2, 2), dtype=torch.float16).to(device) + _ = torch.mul(x, x) + return True + + except Exception as e: + if device.type == "cuda": + raise ValueError( + f"You have passed a device of type 'cuda' which should work with 'fp16', but 'cuda' does not seem to be correctly installed on your machine: {e}" + ) + + return False + + +def _is_torch_fp64_available(device): + if not is_torch_available(): + return False + + import torch + + device = torch.device(device) + + try: + x = torch.zeros((2, 2), dtype=torch.float64).to(device) + _ = torch.mul(x, x) + return True + + except Exception as e: + if device.type == "cuda": + raise ValueError( + f"You have passed a device of type 'cuda' which should work with 'fp64', but 'cuda' does not seem to be correctly installed on your machine: {e}" + ) + + return False + + +# Guard these lookups for when Torch is not used - alternative accelerator support is for PyTorch +if is_torch_available(): + # Behaviour flags + BACKEND_SUPPORTS_TRAINING = {"cuda": True, "xpu": True, "cpu": True, "mps": False, "default": True} + + # Function definitions + BACKEND_EMPTY_CACHE = { + "cuda": torch.cuda.empty_cache, + "xpu": torch.xpu.empty_cache, + "cpu": None, + "mps": torch.mps.empty_cache, + "default": None, + } + BACKEND_DEVICE_COUNT = { + "cuda": torch.cuda.device_count, + "xpu": torch.xpu.device_count, + "cpu": lambda: 0, + "mps": lambda: 0, + "default": 0, + } + BACKEND_MANUAL_SEED = { + "cuda": torch.cuda.manual_seed, + "xpu": torch.xpu.manual_seed, + "cpu": torch.manual_seed, + "mps": torch.mps.manual_seed, + "default": torch.manual_seed, + } + BACKEND_RESET_PEAK_MEMORY_STATS = { + "cuda": torch.cuda.reset_peak_memory_stats, + "xpu": getattr(torch.xpu, "reset_peak_memory_stats", None), + "cpu": None, + "mps": None, + "default": None, + } + BACKEND_RESET_MAX_MEMORY_ALLOCATED = { + "cuda": torch.cuda.reset_max_memory_allocated, + "xpu": getattr(torch.xpu, "reset_peak_memory_stats", None), + "cpu": None, + "mps": None, + "default": None, + } + BACKEND_MAX_MEMORY_ALLOCATED = { + "cuda": torch.cuda.max_memory_allocated, + "xpu": getattr(torch.xpu, "max_memory_allocated", None), + "cpu": 0, + "mps": 0, + "default": 0, + } + BACKEND_SYNCHRONIZE = { + "cuda": torch.cuda.synchronize, + "xpu": getattr(torch.xpu, "synchronize", None), + "cpu": None, + "mps": None, + "default": None, + } + + +# This dispatches a defined function according to the accelerator from the function definitions. +def _device_agnostic_dispatch(device: str, dispatch_table: Dict[str, Callable], *args, **kwargs): + if device not in dispatch_table: + return dispatch_table["default"](*args, **kwargs) + + fn = dispatch_table[device] + + # Some device agnostic functions return values. Need to guard against 'None' instead at + # user level + if not callable(fn): + return fn + + return fn(*args, **kwargs) + + +# These are callables which automatically dispatch the function specific to the accelerator +def backend_manual_seed(device: str, seed: int): + from .torch_utils import backend_manual_seed as _backend_manual_seed + + logger.warning( + "backend_manual_seed has been moved to diffusers.utils.torch_utils. " + "diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _backend_manual_seed(device, seed) + + +def backend_synchronize(device: str): + from .torch_utils import backend_synchronize as _backend_synchronize + + logger.warning( + "backend_synchronize has been moved to diffusers.utils.torch_utils. " + "diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _backend_synchronize(device) + + +def backend_empty_cache(device: str): + from .torch_utils import backend_empty_cache as _backend_empty_cache + + logger.warning( + "backend_empty_cache has been moved to diffusers.utils.torch_utils. " + "diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _backend_empty_cache(device) + + +def backend_device_count(device: str): + from .torch_utils import backend_device_count as _backend_device_count + + logger.warning( + "backend_device_count has been moved to diffusers.utils.torch_utils. " + "diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _backend_device_count(device) + + +def backend_reset_peak_memory_stats(device: str): + from .torch_utils import backend_reset_peak_memory_stats as _backend_reset_peak_memory_stats + + logger.warning( + "backend_reset_peak_memory_stats has been moved to diffusers.utils.torch_utils. " + "diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _backend_reset_peak_memory_stats(device) + + +def backend_reset_max_memory_allocated(device: str): + from .torch_utils import backend_reset_max_memory_allocated as _backend_reset_max_memory_allocated + + logger.warning( + "backend_reset_max_memory_allocated has been moved to diffusers.utils.torch_utils. " + "diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _backend_reset_max_memory_allocated(device) + + +def backend_max_memory_allocated(device: str): + from .torch_utils import backend_max_memory_allocated as _backend_max_memory_allocated + + logger.warning( + "backend_max_memory_allocated has been moved to diffusers.utils.torch_utils. " + "diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _backend_max_memory_allocated(device) + + +# These are callables which return boolean behaviour flags and can be used to specify some +# device agnostic alternative where the feature is unsupported. +def backend_supports_training(device: str): + from .torch_utils import backend_supports_training as _backend_supports_training + + logger.warning( + "backend_supports_training has been moved to diffusers.utils.torch_utils. " + "diffusers.utils.testing_utils is deprecated and will be removed in a future version." + ) + return _backend_supports_training(device) + + +# Guard for when Torch is not available +if is_torch_available(): + # Update device function dict mapping + def update_mapping_from_spec(device_fn_dict: Dict[str, Callable], attribute_name: str): + try: + # Try to import the function directly + spec_fn = getattr(device_spec_module, attribute_name) + device_fn_dict[torch_device] = spec_fn + except AttributeError as e: + # If the function doesn't exist, and there is no default, throw an error + if "default" not in device_fn_dict: + raise AttributeError( + f"`{attribute_name}` not found in '{device_spec_path}' and no default fallback function found." + ) from e + + if "DIFFUSERS_TEST_DEVICE_SPEC" in os.environ: + device_spec_path = os.environ["DIFFUSERS_TEST_DEVICE_SPEC"] + if not Path(device_spec_path).is_file(): + raise ValueError(f"Specified path to device specification file is not found. Received {device_spec_path}") + + try: + import_name = device_spec_path[: device_spec_path.index(".py")] + except ValueError as e: + raise ValueError(f"Provided device spec file is not a Python file! Received {device_spec_path}") from e + + device_spec_module = importlib.import_module(import_name) + + try: + device_name = device_spec_module.DEVICE_NAME + except AttributeError: + raise AttributeError("Device spec file did not contain `DEVICE_NAME`") + + if "DIFFUSERS_TEST_DEVICE" in os.environ and torch_device != device_name: + msg = f"Mismatch between environment variable `DIFFUSERS_TEST_DEVICE` '{torch_device}' and device found in spec '{device_name}'\n" + msg += "Either unset `DIFFUSERS_TEST_DEVICE` or ensure it matches device spec name." + raise ValueError(msg) + + torch_device = device_name + + # Add one entry here for each `BACKEND_*` dictionary. + update_mapping_from_spec(BACKEND_MANUAL_SEED, "MANUAL_SEED_FN") + update_mapping_from_spec(BACKEND_EMPTY_CACHE, "EMPTY_CACHE_FN") + update_mapping_from_spec(BACKEND_DEVICE_COUNT, "DEVICE_COUNT_FN") + update_mapping_from_spec(BACKEND_SUPPORTS_TRAINING, "SUPPORTS_TRAINING") + update_mapping_from_spec(BACKEND_RESET_PEAK_MEMORY_STATS, "RESET_PEAK_MEMORY_STATS_FN") + update_mapping_from_spec(BACKEND_RESET_MAX_MEMORY_ALLOCATED, "RESET_MAX_MEMORY_ALLOCATED_FN") + update_mapping_from_spec(BACKEND_MAX_MEMORY_ALLOCATED, "MAX_MEMORY_ALLOCATED_FN") + + +# Modified from https://github.com/huggingface/transformers/blob/cdfb018d0300fef3b07d9220f3efe9c2a9974662/src/transformers/testing_utils.py#L3090 + +# Type definition of key used in `Expectations` class. +DeviceProperties = Tuple[Union[str, None], Union[int, None]] + + +@functools.lru_cache +def get_device_properties() -> DeviceProperties: + """ + Get environment device properties. + """ + if IS_CUDA_SYSTEM or IS_ROCM_SYSTEM: + import torch + + major, _ = torch.cuda.get_device_capability() + if IS_ROCM_SYSTEM: + return ("rocm", major) + else: + return ("cuda", major) + elif IS_XPU_SYSTEM: + import torch + + # To get more info of the architecture meaning and bit allocation, refer to https://github.com/intel/llvm/blob/sycl/sycl/include/sycl/ext/oneapi/experimental/device_architecture.def + arch = torch.xpu.get_device_capability()["architecture"] + gen_mask = 0x000000FF00000000 + gen = (arch & gen_mask) >> 32 + return ("xpu", gen) + else: + return (torch_device, None) + + +if TYPE_CHECKING: + DevicePropertiesUserDict = UserDict[DeviceProperties, Any] +else: + DevicePropertiesUserDict = UserDict + +if is_torch_available(): + from diffusers.hooks._common import _GO_LC_SUPPORTED_PYTORCH_LAYERS + from diffusers.hooks.group_offloading import ( + _GROUP_ID_LAZY_LEAF, + _compute_group_hash, + _find_parent_module_in_module_dict, + _gather_buffers_with_no_group_offloading_parent, + _gather_parameters_with_no_group_offloading_parent, + ) + + def _get_expected_safetensors_files( + module: torch.nn.Module, + offload_to_disk_path: str, + offload_type: str, + num_blocks_per_group: Optional[int] = None, + ) -> Set[str]: + expected_files = set() + + def get_hashed_filename(group_id: str) -> str: + short_hash = _compute_group_hash(group_id) + return os.path.join(offload_to_disk_path, f"group_{short_hash}.safetensors") + + if offload_type == "block_level": + if num_blocks_per_group is None: + raise ValueError("num_blocks_per_group must be provided for 'block_level' offloading.") + + # Handle groups of ModuleList and Sequential blocks + unmatched_modules = [] + for name, submodule in module.named_children(): + if not isinstance(submodule, (torch.nn.ModuleList, torch.nn.Sequential)): + unmatched_modules.append(module) + continue + + for i in range(0, len(submodule), num_blocks_per_group): + current_modules = submodule[i : i + num_blocks_per_group] + if not current_modules: + continue + group_id = f"{name}_{i}_{i + len(current_modules) - 1}" + expected_files.add(get_hashed_filename(group_id)) + + # Handle the group for unmatched top-level modules and parameters + for module in unmatched_modules: + expected_files.add(get_hashed_filename(f"{module.__class__.__name__}_unmatched_group")) + + elif offload_type == "leaf_level": + # Handle leaf-level module groups + for name, submodule in module.named_modules(): + if isinstance(submodule, _GO_LC_SUPPORTED_PYTORCH_LAYERS): + # These groups will always have parameters, so a file is expected + expected_files.add(get_hashed_filename(name)) + + # Handle groups for non-leaf parameters/buffers + modules_with_group_offloading = { + name for name, sm in module.named_modules() if isinstance(sm, _GO_LC_SUPPORTED_PYTORCH_LAYERS) + } + parameters = _gather_parameters_with_no_group_offloading_parent(module, modules_with_group_offloading) + buffers = _gather_buffers_with_no_group_offloading_parent(module, modules_with_group_offloading) + + all_orphans = parameters + buffers + if all_orphans: + parent_to_tensors = {} + module_dict = dict(module.named_modules()) + for tensor_name, _ in all_orphans: + parent_name = _find_parent_module_in_module_dict(tensor_name, module_dict) + if parent_name not in parent_to_tensors: + parent_to_tensors[parent_name] = [] + parent_to_tensors[parent_name].append(tensor_name) + + for parent_name in parent_to_tensors: + # A file is expected for each parent that gathers orphaned tensors + expected_files.add(get_hashed_filename(parent_name)) + expected_files.add(get_hashed_filename(_GROUP_ID_LAZY_LEAF)) + + else: + raise ValueError(f"Unsupported offload_type: {offload_type}") + + return expected_files + + def _check_safetensors_serialization( + module: torch.nn.Module, + offload_to_disk_path: str, + offload_type: str, + num_blocks_per_group: Optional[int] = None, + ) -> bool: + if not os.path.isdir(offload_to_disk_path): + return False, None, None + + expected_files = _get_expected_safetensors_files( + module, offload_to_disk_path, offload_type, num_blocks_per_group + ) + actual_files = set(glob.glob(os.path.join(offload_to_disk_path, "*.safetensors"))) + missing_files = expected_files - actual_files + extra_files = actual_files - expected_files + + is_correct = not missing_files and not extra_files + return is_correct, extra_files, missing_files + + +class Expectations(DevicePropertiesUserDict): + def get_expectation(self) -> Any: + """ + Find best matching expectation based on environment device properties. + """ + return self.find_expectation(get_device_properties()) + + @staticmethod + def is_default(key: DeviceProperties) -> bool: + return all(p is None for p in key) + + @staticmethod + def score(key: DeviceProperties, other: DeviceProperties) -> int: + """ + Returns score indicating how similar two instances of the `Properties` tuple are. Points are calculated using + bits, but documented as int. Rules are as follows: + * Matching `type` gives 8 points. + * Semi-matching `type`, for example cuda and rocm, gives 4 points. + * Matching `major` (compute capability major version) gives 2 points. + * Default expectation (if present) gives 1 points. + """ + (device_type, major) = key + (other_device_type, other_major) = other + + score = 0b0 + if device_type == other_device_type: + score |= 0b1000 + elif device_type in ["cuda", "rocm"] and other_device_type in ["cuda", "rocm"]: + score |= 0b100 + + if major == other_major and other_major is not None: + score |= 0b10 + + if Expectations.is_default(other): + score |= 0b1 + + return int(score) + + def find_expectation(self, key: DeviceProperties = (None, None)) -> Any: + """ + Find best matching expectation based on provided device properties. + """ + (result_key, result) = max(self.data.items(), key=lambda x: Expectations.score(key, x[0])) + + if Expectations.score(key, result_key) == 0: + raise ValueError(f"No matching expectation found for {key}") + + return result + + def __repr__(self): + return f"{self.data}" diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/torch_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/torch_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..3b66fdadbef81bb34454e8732e068315d07ea897 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/torch_utils.py @@ -0,0 +1,336 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +PyTorch utilities: Utilities related to PyTorch +""" + +import functools +import os +from typing import Callable, Dict, List, Optional, Tuple, Union + +from . import logging +from .import_utils import is_torch_available, is_torch_mlu_available, is_torch_npu_available, is_torch_version + + +if is_torch_available(): + import torch + from torch.fft import fftn, fftshift, ifftn, ifftshift + + BACKEND_SUPPORTS_TRAINING = {"cuda": True, "xpu": True, "cpu": True, "mps": False, "default": True} + BACKEND_EMPTY_CACHE = { + "cuda": torch.cuda.empty_cache, + "xpu": torch.xpu.empty_cache, + "cpu": None, + "mps": torch.mps.empty_cache, + "default": None, + } + BACKEND_DEVICE_COUNT = { + "cuda": torch.cuda.device_count, + "xpu": torch.xpu.device_count, + "cpu": lambda: 0, + "mps": lambda: 0, + "default": 0, + } + BACKEND_MANUAL_SEED = { + "cuda": torch.cuda.manual_seed, + "xpu": torch.xpu.manual_seed, + "cpu": torch.manual_seed, + "mps": torch.mps.manual_seed, + "default": torch.manual_seed, + } + BACKEND_RESET_PEAK_MEMORY_STATS = { + "cuda": torch.cuda.reset_peak_memory_stats, + "xpu": getattr(torch.xpu, "reset_peak_memory_stats", None), + "cpu": None, + "mps": None, + "default": None, + } + BACKEND_RESET_MAX_MEMORY_ALLOCATED = { + "cuda": torch.cuda.reset_max_memory_allocated, + "xpu": getattr(torch.xpu, "reset_peak_memory_stats", None), + "cpu": None, + "mps": None, + "default": None, + } + BACKEND_MAX_MEMORY_ALLOCATED = { + "cuda": torch.cuda.max_memory_allocated, + "xpu": getattr(torch.xpu, "max_memory_allocated", None), + "cpu": 0, + "mps": 0, + "default": 0, + } + BACKEND_SYNCHRONIZE = { + "cuda": torch.cuda.synchronize, + "xpu": getattr(torch.xpu, "synchronize", None), + "cpu": None, + "mps": None, + "default": None, + } +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +try: + from torch._dynamo import allow_in_graph as maybe_allow_in_graph +except (ImportError, ModuleNotFoundError): + + def maybe_allow_in_graph(cls): + return cls + + +# This dispatches a defined function according to the accelerator from the function definitions. +def _device_agnostic_dispatch(device: str, dispatch_table: Dict[str, Callable], *args, **kwargs): + if device not in dispatch_table: + return dispatch_table["default"](*args, **kwargs) + + fn = dispatch_table[device] + + # Some device agnostic functions return values. Need to guard against 'None' instead at + # user level + if not callable(fn): + return fn + + return fn(*args, **kwargs) + + +# These are callables which automatically dispatch the function specific to the accelerator +def backend_manual_seed(device: str, seed: int): + return _device_agnostic_dispatch(device, BACKEND_MANUAL_SEED, seed) + + +def backend_synchronize(device: str): + return _device_agnostic_dispatch(device, BACKEND_SYNCHRONIZE) + + +def backend_empty_cache(device: str): + return _device_agnostic_dispatch(device, BACKEND_EMPTY_CACHE) + + +def backend_device_count(device: str): + return _device_agnostic_dispatch(device, BACKEND_DEVICE_COUNT) + + +def backend_reset_peak_memory_stats(device: str): + return _device_agnostic_dispatch(device, BACKEND_RESET_PEAK_MEMORY_STATS) + + +def backend_reset_max_memory_allocated(device: str): + return _device_agnostic_dispatch(device, BACKEND_RESET_MAX_MEMORY_ALLOCATED) + + +def backend_max_memory_allocated(device: str): + return _device_agnostic_dispatch(device, BACKEND_MAX_MEMORY_ALLOCATED) + + +# These are callables which return boolean behaviour flags and can be used to specify some +# device agnostic alternative where the feature is unsupported. +def backend_supports_training(device: str): + if not is_torch_available(): + return False + + if device not in BACKEND_SUPPORTS_TRAINING: + device = "default" + + return BACKEND_SUPPORTS_TRAINING[device] + + +def randn_tensor( + shape: Union[Tuple, List], + generator: Optional[Union[List["torch.Generator"], "torch.Generator"]] = None, + device: Optional[Union[str, "torch.device"]] = None, + dtype: Optional["torch.dtype"] = None, + layout: Optional["torch.layout"] = None, +): + """A helper function to create random tensors on the desired `device` with the desired `dtype`. When + passing a list of generators, you can seed each batch size individually. If CPU generators are passed, the tensor + is always created on the CPU. + """ + # device on which tensor is created defaults to device + if isinstance(device, str): + device = torch.device(device) + rand_device = device + batch_size = shape[0] + + layout = layout or torch.strided + device = device or torch.device("cpu") + + if generator is not None: + gen_device_type = generator.device.type if not isinstance(generator, list) else generator[0].device.type + if gen_device_type != device.type and gen_device_type == "cpu": + rand_device = "cpu" + if device != "mps": + logger.info( + f"The passed generator was created on 'cpu' even though a tensor on {device} was expected." + f" Tensors will be created on 'cpu' and then moved to {device}. Note that one can probably" + f" slightly speed up this function by passing a generator that was created on the {device} device." + ) + elif gen_device_type != device.type and gen_device_type == "cuda": + raise ValueError(f"Cannot generate a {device} tensor from a generator of type {gen_device_type}.") + + # make sure generator list of length 1 is treated like a non-list + if isinstance(generator, list) and len(generator) == 1: + generator = generator[0] + + if isinstance(generator, list): + shape = (1,) + shape[1:] + latents = [ + torch.randn(shape, generator=generator[i], device=rand_device, dtype=dtype, layout=layout) + for i in range(batch_size) + ] + latents = torch.cat(latents, dim=0).to(device) + else: + latents = torch.randn(shape, generator=generator, device=rand_device, dtype=dtype, layout=layout).to(device) + + return latents + + +def is_compiled_module(module) -> bool: + """Check whether the module was compiled with torch.compile()""" + if is_torch_version("<", "2.0.0") or not hasattr(torch, "_dynamo"): + return False + return isinstance(module, torch._dynamo.eval_frame.OptimizedModule) + + +def unwrap_module(module): + """Unwraps a module if it was compiled with torch.compile()""" + return module._orig_mod if is_compiled_module(module) else module + + +def fourier_filter(x_in: "torch.Tensor", threshold: int, scale: int) -> "torch.Tensor": + """Fourier filter as introduced in FreeU (https://huggingface.co/papers/2309.11497). + + This version of the method comes from here: + https://github.com/huggingface/diffusers/pull/5164#issuecomment-1732638706 + """ + x = x_in + B, C, H, W = x.shape + + # Non-power of 2 images must be float32 + if (W & (W - 1)) != 0 or (H & (H - 1)) != 0: + x = x.to(dtype=torch.float32) + # fftn does not support bfloat16 + elif x.dtype == torch.bfloat16: + x = x.to(dtype=torch.float32) + + # FFT + x_freq = fftn(x, dim=(-2, -1)) + x_freq = fftshift(x_freq, dim=(-2, -1)) + + B, C, H, W = x_freq.shape + mask = torch.ones((B, C, H, W), device=x.device) + + crow, ccol = H // 2, W // 2 + mask[..., crow - threshold : crow + threshold, ccol - threshold : ccol + threshold] = scale + x_freq = x_freq * mask + + # IFFT + x_freq = ifftshift(x_freq, dim=(-2, -1)) + x_filtered = ifftn(x_freq, dim=(-2, -1)).real + + return x_filtered.to(dtype=x_in.dtype) + + +def apply_freeu( + resolution_idx: int, hidden_states: "torch.Tensor", res_hidden_states: "torch.Tensor", **freeu_kwargs +) -> Tuple["torch.Tensor", "torch.Tensor"]: + """Applies the FreeU mechanism as introduced in https://huggingface.co/papers/2309.11497. Adapted from the official + code repository: https://github.com/ChenyangSi/FreeU. + + Args: + resolution_idx (`int`): Integer denoting the UNet block where FreeU is being applied. + hidden_states (`torch.Tensor`): Inputs to the underlying block. + res_hidden_states (`torch.Tensor`): Features from the skip block corresponding to the underlying block. + s1 (`float`): Scaling factor for stage 1 to attenuate the contributions of the skip features. + s2 (`float`): Scaling factor for stage 2 to attenuate the contributions of the skip features. + b1 (`float`): Scaling factor for stage 1 to amplify the contributions of backbone features. + b2 (`float`): Scaling factor for stage 2 to amplify the contributions of backbone features. + """ + if resolution_idx == 0: + num_half_channels = hidden_states.shape[1] // 2 + hidden_states[:, :num_half_channels] = hidden_states[:, :num_half_channels] * freeu_kwargs["b1"] + res_hidden_states = fourier_filter(res_hidden_states, threshold=1, scale=freeu_kwargs["s1"]) + if resolution_idx == 1: + num_half_channels = hidden_states.shape[1] // 2 + hidden_states[:, :num_half_channels] = hidden_states[:, :num_half_channels] * freeu_kwargs["b2"] + res_hidden_states = fourier_filter(res_hidden_states, threshold=1, scale=freeu_kwargs["s2"]) + + return hidden_states, res_hidden_states + + +def get_torch_cuda_device_capability(): + if torch.cuda.is_available(): + device = torch.device("cuda") + compute_capability = torch.cuda.get_device_capability(device) + compute_capability = f"{compute_capability[0]}.{compute_capability[1]}" + return float(compute_capability) + else: + return None + + +@functools.lru_cache +def get_device(): + if torch.cuda.is_available(): + return "cuda" + elif is_torch_npu_available(): + return "npu" + elif hasattr(torch, "xpu") and torch.xpu.is_available(): + return "xpu" + elif torch.backends.mps.is_available(): + return "mps" + elif is_torch_mlu_available(): + return "mlu" + else: + return "cpu" + + +def empty_device_cache(device_type: Optional[str] = None): + if device_type is None: + device_type = get_device() + if device_type in ["cpu"]: + return + device_mod = getattr(torch, device_type, torch.cuda) + device_mod.empty_cache() + + +def device_synchronize(device_type: Optional[str] = None): + if device_type is None: + device_type = get_device() + device_mod = getattr(torch, device_type, torch.cuda) + device_mod.synchronize() + + +def enable_full_determinism(): + """ + Helper function for reproducible behavior during distributed training. See + - https://pytorch.org/docs/stable/notes/randomness.html for pytorch + """ + # Enable PyTorch deterministic mode. This potentially requires either the environment + # variable 'CUDA_LAUNCH_BLOCKING' or 'CUBLAS_WORKSPACE_CONFIG' to be set, + # depending on the CUDA version, so we set them both here + os.environ["CUDA_LAUNCH_BLOCKING"] = "1" + os.environ["CUBLAS_WORKSPACE_CONFIG"] = ":16:8" + torch.use_deterministic_algorithms(True) + + # Enable CUDNN deterministic mode + torch.backends.cudnn.deterministic = True + torch.backends.cudnn.benchmark = False + torch.backends.cuda.matmul.allow_tf32 = False + + +def disable_full_determinism(): + os.environ["CUDA_LAUNCH_BLOCKING"] = "0" + os.environ["CUBLAS_WORKSPACE_CONFIG"] = "" + torch.use_deterministic_algorithms(False) + + +if is_torch_available(): + torch_device = get_device() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/typing_utils.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/typing_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..2b5b1a4f5ab5510856bf453a7436f6deb9c61abe --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/typing_utils.py @@ -0,0 +1,91 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Typing utilities: Utilities related to type checking and validation +""" + +from typing import Any, Dict, List, Set, Tuple, Type, Union, get_args, get_origin + + +def _is_valid_type(obj: Any, class_or_tuple: Union[Type, Tuple[Type, ...]]) -> bool: + """ + Checks if an object is an instance of any of the provided types. For collections, it checks if every element is of + the correct type as well. + """ + if not isinstance(class_or_tuple, tuple): + class_or_tuple = (class_or_tuple,) + + # Unpack unions + unpacked_class_or_tuple = [] + for t in class_or_tuple: + if get_origin(t) is Union: + unpacked_class_or_tuple.extend(get_args(t)) + else: + unpacked_class_or_tuple.append(t) + class_or_tuple = tuple(unpacked_class_or_tuple) + + if Any in class_or_tuple: + return True + + obj_type = type(obj) + # Classes with obj's type + class_or_tuple = {t for t in class_or_tuple if isinstance(obj, get_origin(t) or t)} + + # Singular types (e.g. int, ControlNet, ...) + # Untyped collections (e.g. List, but not List[int]) + elem_class_or_tuple = {get_args(t) for t in class_or_tuple} + if () in elem_class_or_tuple: + return True + # Typed lists or sets + elif obj_type in (list, set): + return any(all(_is_valid_type(x, t) for x in obj) for t in elem_class_or_tuple) + # Typed tuples + elif obj_type is tuple: + return any( + # Tuples with any length and single type (e.g. Tuple[int, ...]) + (len(t) == 2 and t[-1] is Ellipsis and all(_is_valid_type(x, t[0]) for x in obj)) + or + # Tuples with fixed length and any types (e.g. Tuple[int, str]) + (len(obj) == len(t) and all(_is_valid_type(x, tt) for x, tt in zip(obj, t))) + for t in elem_class_or_tuple + ) + # Typed dicts + elif obj_type is dict: + return any( + all(_is_valid_type(k, kt) and _is_valid_type(v, vt) for k, v in obj.items()) + for kt, vt in elem_class_or_tuple + ) + + else: + return False + + +def _get_detailed_type(obj: Any) -> Type: + """ + Gets a detailed type for an object, including nested types for collections. + """ + obj_type = type(obj) + + if obj_type in (list, set): + obj_origin_type = List if obj_type is list else Set + elems_type = Union[tuple({_get_detailed_type(x) for x in obj})] + return obj_origin_type[elems_type] + elif obj_type is tuple: + return Tuple[tuple(_get_detailed_type(x) for x in obj)] + elif obj_type is dict: + keys_type = Union[tuple({_get_detailed_type(k) for k in obj.keys()})] + values_type = Union[tuple({_get_detailed_type(k) for k in obj.values()})] + return Dict[keys_type, values_type] + else: + return obj_type diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/versions.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/versions.py new file mode 100644 index 0000000000000000000000000000000000000000..945a3977ce62a9a55307862193e4be6f12c3c17f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/utils/versions.py @@ -0,0 +1,117 @@ +# Copyright 2020 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Utilities for working with package versions +""" + +import importlib.metadata +import operator +import re +import sys +from typing import Optional + +from packaging import version + + +ops = { + "<": operator.lt, + "<=": operator.le, + "==": operator.eq, + "!=": operator.ne, + ">=": operator.ge, + ">": operator.gt, +} + + +def _compare_versions(op, got_ver, want_ver, requirement, pkg, hint): + if got_ver is None or want_ver is None: + raise ValueError( + f"Unable to compare versions for {requirement}: need={want_ver} found={got_ver}. This is unusual. Consider" + f" reinstalling {pkg}." + ) + if not ops[op](version.parse(got_ver), version.parse(want_ver)): + raise ImportError( + f"{requirement} is required for a normal functioning of this module, but found {pkg}=={got_ver}.{hint}" + ) + + +def require_version(requirement: str, hint: Optional[str] = None) -> None: + """ + Perform a runtime check of the dependency versions, using the exact same syntax used by pip. + + The installed module version comes from the *site-packages* dir via *importlib.metadata*. + + Args: + requirement (`str`): pip style definition, e.g., "tokenizers==0.9.4", "tqdm>=4.27", "numpy" + hint (`str`, *optional*): what suggestion to print in case of requirements not being met + + Example: + + ```python + require_version("pandas>1.1.2") + require_version("numpy>1.18.5", "this is important to have for whatever reason") + ```""" + + hint = f"\n{hint}" if hint is not None else "" + + # non-versioned check + if re.match(r"^[\w_\-\d]+$", requirement): + pkg, op, want_ver = requirement, None, None + else: + match = re.findall(r"^([^!=<>\s]+)([\s!=<>]{1,2}.+)", requirement) + if not match: + raise ValueError( + "requirement needs to be in the pip package format, .e.g., package_a==1.23, or package_b>=1.23, but" + f" got {requirement}" + ) + pkg, want_full = match[0] + want_range = want_full.split(",") # there could be multiple requirements + wanted = {} + for w in want_range: + match = re.findall(r"^([\s!=<>]{1,2})(.+)", w) + if not match: + raise ValueError( + "requirement needs to be in the pip package format, .e.g., package_a==1.23, or package_b>=1.23," + f" but got {requirement}" + ) + op, want_ver = match[0] + wanted[op] = want_ver + if op not in ops: + raise ValueError(f"{requirement}: need one of {list(ops.keys())}, but got {op}") + + # special case + if pkg == "python": + got_ver = ".".join([str(x) for x in sys.version_info[:3]]) + for op, want_ver in wanted.items(): + _compare_versions(op, got_ver, want_ver, requirement, pkg, hint) + return + + # check if any version is installed + try: + got_ver = importlib.metadata.version(pkg) + except importlib.metadata.PackageNotFoundError: + raise importlib.metadata.PackageNotFoundError( + f"The '{requirement}' distribution was not found and is required by this application. {hint}" + ) + + # check that the right version is installed if version number or a range was provided + if want_ver is not None: + for op, want_ver in wanted.items(): + _compare_versions(op, got_ver, want_ver, requirement, pkg, hint) + + +def require_version_core(requirement): + """require_version wrapper which emits a core-specific hint on failure""" + hint = "Try: pip install transformers -U or pip install -e '.[dev]' if you're working with git main" + return require_version(requirement, hint) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/video_processor.py b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/video_processor.py new file mode 100644 index 0000000000000000000000000000000000000000..abeb30bca102c81f9e1dda0c49bcb318f78735f7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/src/diffusers/video_processor.py @@ -0,0 +1,176 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import warnings +from typing import List, Optional, Tuple, Union + +import numpy as np +import PIL +import torch +import torch.nn.functional as F + +from .image_processor import VaeImageProcessor, is_valid_image, is_valid_image_imagelist + + +class VideoProcessor(VaeImageProcessor): + r"""Simple video processor.""" + + def preprocess_video(self, video, height: Optional[int] = None, width: Optional[int] = None) -> torch.Tensor: + r""" + Preprocesses input video(s). + + Args: + video (`List[PIL.Image]`, `List[List[PIL.Image]]`, `torch.Tensor`, `np.array`, `List[torch.Tensor]`, `List[np.array]`): + The input video. It can be one of the following: + * List of the PIL images. + * List of list of PIL images. + * 4D Torch tensors (expected shape for each tensor `(num_frames, num_channels, height, width)`). + * 4D NumPy arrays (expected shape for each array `(num_frames, height, width, num_channels)`). + * List of 4D Torch tensors (expected shape for each tensor `(num_frames, num_channels, height, + width)`). + * List of 4D NumPy arrays (expected shape for each array `(num_frames, height, width, num_channels)`). + * 5D NumPy arrays: expected shape for each array `(batch_size, num_frames, height, width, + num_channels)`. + * 5D Torch tensors: expected shape for each array `(batch_size, num_frames, num_channels, height, + width)`. + height (`int`, *optional*, defaults to `None`): + The height in preprocessed frames of the video. If `None`, will use the `get_default_height_width()` to + get default height. + width (`int`, *optional*`, defaults to `None`): + The width in preprocessed frames of the video. If `None`, will use get_default_height_width()` to get + the default width. + """ + if isinstance(video, list) and isinstance(video[0], np.ndarray) and video[0].ndim == 5: + warnings.warn( + "Passing `video` as a list of 5d np.ndarray is deprecated." + "Please concatenate the list along the batch dimension and pass it as a single 5d np.ndarray", + FutureWarning, + ) + video = np.concatenate(video, axis=0) + if isinstance(video, list) and isinstance(video[0], torch.Tensor) and video[0].ndim == 5: + warnings.warn( + "Passing `video` as a list of 5d torch.Tensor is deprecated." + "Please concatenate the list along the batch dimension and pass it as a single 5d torch.Tensor", + FutureWarning, + ) + video = torch.cat(video, axis=0) + + # ensure the input is a list of videos: + # - if it is a batch of videos (5d torch.Tensor or np.ndarray), it is converted to a list of videos (a list of 4d torch.Tensor or np.ndarray) + # - if it is a single video, it is converted to a list of one video. + if isinstance(video, (np.ndarray, torch.Tensor)) and video.ndim == 5: + video = list(video) + elif isinstance(video, list) and is_valid_image(video[0]) or is_valid_image_imagelist(video): + video = [video] + elif isinstance(video, list) and is_valid_image_imagelist(video[0]): + video = video + else: + raise ValueError( + "Input is in incorrect format. Currently, we only support numpy.ndarray, torch.Tensor, PIL.Image.Image" + ) + + video = torch.stack([self.preprocess(img, height=height, width=width) for img in video], dim=0) + + # move the number of channels before the number of frames. + video = video.permute(0, 2, 1, 3, 4) + + return video + + def postprocess_video( + self, video: torch.Tensor, output_type: str = "np" + ) -> Union[np.ndarray, torch.Tensor, List[PIL.Image.Image]]: + r""" + Converts a video tensor to a list of frames for export. + + Args: + video (`torch.Tensor`): The video as a tensor. + output_type (`str`, defaults to `"np"`): Output type of the postprocessed `video` tensor. + """ + batch_size = video.shape[0] + outputs = [] + for batch_idx in range(batch_size): + batch_vid = video[batch_idx].permute(1, 0, 2, 3) + batch_output = self.postprocess(batch_vid, output_type) + outputs.append(batch_output) + + if output_type == "np": + outputs = np.stack(outputs) + elif output_type == "pt": + outputs = torch.stack(outputs) + elif not output_type == "pil": + raise ValueError(f"{output_type} does not exist. Please choose one of ['np', 'pt', 'pil']") + + return outputs + + @staticmethod + def classify_height_width_bin(height: int, width: int, ratios: dict) -> Tuple[int, int]: + r""" + Returns the binned height and width based on the aspect ratio. + + Args: + height (`int`): The height of the image. + width (`int`): The width of the image. + ratios (`dict`): A dictionary where keys are aspect ratios and values are tuples of (height, width). + + Returns: + `Tuple[int, int]`: The closest binned height and width. + """ + ar = float(height / width) + closest_ratio = min(ratios.keys(), key=lambda ratio: abs(float(ratio) - ar)) + default_hw = ratios[closest_ratio] + return int(default_hw[0]), int(default_hw[1]) + + @staticmethod + def resize_and_crop_tensor(samples: torch.Tensor, new_width: int, new_height: int) -> torch.Tensor: + r""" + Resizes and crops a tensor of videos to the specified dimensions. + + Args: + samples (`torch.Tensor`): + A tensor of shape (N, C, T, H, W) where N is the batch size, C is the number of channels, T is the + number of frames, H is the height, and W is the width. + new_width (`int`): The desired width of the output videos. + new_height (`int`): The desired height of the output videos. + + Returns: + `torch.Tensor`: A tensor containing the resized and cropped videos. + """ + orig_height, orig_width = samples.shape[3], samples.shape[4] + + # Check if resizing is needed + if orig_height != new_height or orig_width != new_width: + ratio = max(new_height / orig_height, new_width / orig_width) + resized_width = int(orig_width * ratio) + resized_height = int(orig_height * ratio) + + # Reshape to (N*T, C, H, W) for interpolation + n, c, t, h, w = samples.shape + samples = samples.permute(0, 2, 1, 3, 4).reshape(n * t, c, h, w) + + # Resize + samples = F.interpolate( + samples, size=(resized_height, resized_width), mode="bilinear", align_corners=False + ) + + # Center Crop + start_x = (resized_width - new_width) // 2 + end_x = start_x + new_width + start_y = (resized_height - new_height) // 2 + end_y = start_y + new_height + samples = samples[:, :, start_y:end_y, start_x:end_x] + + # Reshape back to (N, C, T, H, W) + samples = samples.reshape(n, t, c, new_height, new_width).permute(0, 2, 1, 3, 4) + + return samples diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_config_docstrings.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_config_docstrings.py new file mode 100644 index 0000000000000000000000000000000000000000..d39fe6a618d4d7e0476f32578a488aa3402abde6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_config_docstrings.py @@ -0,0 +1,84 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import importlib +import inspect +import os +import re + + +# All paths are set with the intent you should run this script from the root of the repo with the command +# python utils/check_config_docstrings.py +PATH_TO_TRANSFORMERS = "src/transformers" + + +# This is to make sure the transformers module imported is the one in the repo. +spec = importlib.util.spec_from_file_location( + "transformers", + os.path.join(PATH_TO_TRANSFORMERS, "__init__.py"), + submodule_search_locations=[PATH_TO_TRANSFORMERS], +) +transformers = spec.loader.load_module() + +CONFIG_MAPPING = transformers.models.auto.configuration_auto.CONFIG_MAPPING + +# Regex pattern used to find the checkpoint mentioned in the docstring of `config_class`. +# For example, `[bert-base-uncased](https://huggingface.co/bert-base-uncased)` +_re_checkpoint = re.compile(r"\[(.+?)\]\((https://huggingface\.co/.+?)\)") + + +CONFIG_CLASSES_TO_IGNORE_FOR_DOCSTRING_CHECKPOINT_CHECK = { + "CLIPConfigMixin", + "DecisionTransformerConfigMixin", + "EncoderDecoderConfigMixin", + "RagConfigMixin", + "SpeechEncoderDecoderConfigMixin", + "VisionEncoderDecoderConfigMixin", + "VisionTextDualEncoderConfigMixin", +} + + +def check_config_docstrings_have_checkpoints(): + configs_without_checkpoint = [] + + for config_class in list(CONFIG_MAPPING.values()): + checkpoint_found = False + + # source code of `config_class` + config_source = inspect.getsource(config_class) + checkpoints = _re_checkpoint.findall(config_source) + + for checkpoint in checkpoints: + # Each `checkpoint` is a tuple of a checkpoint name and a checkpoint link. + # For example, `('bert-base-uncased', 'https://huggingface.co/bert-base-uncased')` + ckpt_name, ckpt_link = checkpoint + + # verify the checkpoint name corresponds to the checkpoint link + ckpt_link_from_name = f"https://huggingface.co/{ckpt_name}" + if ckpt_link == ckpt_link_from_name: + checkpoint_found = True + break + + name = config_class.__name__ + if not checkpoint_found and name not in CONFIG_CLASSES_TO_IGNORE_FOR_DOCSTRING_CHECKPOINT_CHECK: + configs_without_checkpoint.append(name) + + if len(configs_without_checkpoint) > 0: + message = "\n".join(sorted(configs_without_checkpoint)) + raise ValueError(f"The following configurations don't contain any valid checkpoint:\n{message}") + + +if __name__ == "__main__": + check_config_docstrings_have_checkpoints() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_copies.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_copies.py new file mode 100644 index 0000000000000000000000000000000000000000..001366c1905f5fda8a8e22f38b532013657e8ee3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_copies.py @@ -0,0 +1,222 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +import glob +import os +import re +import subprocess + + +# All paths are set with the intent you should run this script from the root of the repo with the command +# python utils/check_copies.py +DIFFUSERS_PATH = "src/diffusers" +REPO_PATH = "." + + +def _should_continue(line, indent): + return line.startswith(indent) or len(line) <= 1 or re.search(r"^\s*\)(\s*->.*:|:)\s*$", line) is not None + + +def find_code_in_diffusers(object_name): + """Find and return the code source code of `object_name`.""" + parts = object_name.split(".") + i = 0 + + # First let's find the module where our object lives. + module = parts[i] + while i < len(parts) and not os.path.isfile(os.path.join(DIFFUSERS_PATH, f"{module}.py")): + i += 1 + if i < len(parts): + module = os.path.join(module, parts[i]) + if i >= len(parts): + raise ValueError(f"`object_name` should begin with the name of a module of diffusers but got {object_name}.") + + with open( + os.path.join(DIFFUSERS_PATH, f"{module}.py"), + "r", + encoding="utf-8", + newline="\n", + ) as f: + lines = f.readlines() + + # Now let's find the class / func in the code! + indent = "" + line_index = 0 + for name in parts[i + 1 :]: + while ( + line_index < len(lines) and re.search(rf"^{indent}(class|def)\s+{name}(\(|\:)", lines[line_index]) is None + ): + line_index += 1 + indent += " " + line_index += 1 + + if line_index >= len(lines): + raise ValueError(f" {object_name} does not match any function or class in {module}.") + + # We found the beginning of the class / func, now let's find the end (when the indent diminishes). + start_index = line_index + while line_index < len(lines) and _should_continue(lines[line_index], indent): + line_index += 1 + # Clean up empty lines at the end (if any). + while len(lines[line_index - 1]) <= 1: + line_index -= 1 + + code_lines = lines[start_index:line_index] + return "".join(code_lines) + + +_re_copy_warning = re.compile(r"^(\s*)#\s*Copied from\s+diffusers\.(\S+\.\S+)\s*($|\S.*$)") +_re_replace_pattern = re.compile(r"^\s*(\S+)->(\S+)(\s+.*|$)") +_re_fill_pattern = re.compile(r"]*>") + + +def get_indent(code): + lines = code.split("\n") + idx = 0 + while idx < len(lines) and len(lines[idx]) == 0: + idx += 1 + if idx < len(lines): + return re.search(r"^(\s*)\S", lines[idx]).groups()[0] + return "" + + +def run_ruff(code): + command = ["ruff", "format", "-", "--config", "pyproject.toml", "--silent"] + process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE) + stdout, _ = process.communicate(input=code.encode()) + return stdout.decode() + + +def stylify(code: str) -> str: + """ + Applies the ruff part of our `make style` command to some code. This formats the code using `ruff format`. + As `ruff` does not provide a python api this cannot be done on the fly. + + Args: + code (`str`): The code to format. + + Returns: + `str`: The formatted code. + """ + has_indent = len(get_indent(code)) > 0 + if has_indent: + code = f"class Bla:\n{code}" + formatted_code = run_ruff(code) + return formatted_code[len("class Bla:\n") :] if has_indent else formatted_code + + +def is_copy_consistent(filename, overwrite=False): + """ + Check if the code commented as a copy in `filename` matches the original. + Return the differences or overwrites the content depending on `overwrite`. + """ + with open(filename, "r", encoding="utf-8", newline="\n") as f: + lines = f.readlines() + diffs = [] + line_index = 0 + # Not a for loop cause `lines` is going to change (if `overwrite=True`). + while line_index < len(lines): + search = _re_copy_warning.search(lines[line_index]) + if search is None: + line_index += 1 + continue + + # There is some copied code here, let's retrieve the original. + indent, object_name, replace_pattern = search.groups() + theoretical_code = find_code_in_diffusers(object_name) + theoretical_indent = get_indent(theoretical_code) + + start_index = line_index + 1 if indent == theoretical_indent else line_index + 2 + indent = theoretical_indent + line_index = start_index + + # Loop to check the observed code, stop when indentation diminishes or if we see a End copy comment. + should_continue = True + while line_index < len(lines) and should_continue: + line_index += 1 + if line_index >= len(lines): + break + line = lines[line_index] + should_continue = _should_continue(line, indent) and re.search(f"^{indent}# End copy", line) is None + # Clean up empty lines at the end (if any). + while len(lines[line_index - 1]) <= 1: + line_index -= 1 + + observed_code_lines = lines[start_index:line_index] + observed_code = "".join(observed_code_lines) + + # Remove any nested `Copied from` comments to avoid circular copies + theoretical_code = [line for line in theoretical_code.split("\n") if _re_copy_warning.search(line) is None] + theoretical_code = "\n".join(theoretical_code) + + # Before comparing, use the `replace_pattern` on the original code. + if len(replace_pattern) > 0: + patterns = replace_pattern.replace("with", "").split(",") + patterns = [_re_replace_pattern.search(p) for p in patterns] + for pattern in patterns: + if pattern is None: + continue + obj1, obj2, option = pattern.groups() + theoretical_code = re.sub(obj1, obj2, theoretical_code) + if option.strip() == "all-casing": + theoretical_code = re.sub(obj1.lower(), obj2.lower(), theoretical_code) + theoretical_code = re.sub(obj1.upper(), obj2.upper(), theoretical_code) + + # stylify after replacement. To be able to do that, we need the header (class or function definition) + # from the previous line + theoretical_code = stylify(lines[start_index - 1] + theoretical_code) + theoretical_code = theoretical_code[len(lines[start_index - 1]) :] + + # Test for a diff and act accordingly. + if observed_code != theoretical_code: + diffs.append([object_name, start_index]) + if overwrite: + lines = lines[:start_index] + [theoretical_code] + lines[line_index:] + line_index = start_index + 1 + + if overwrite and len(diffs) > 0: + # Warn the user a file has been modified. + print(f"Detected changes, rewriting {filename}.") + with open(filename, "w", encoding="utf-8", newline="\n") as f: + f.writelines(lines) + return diffs + + +def check_copies(overwrite: bool = False): + all_files = glob.glob(os.path.join(DIFFUSERS_PATH, "**/*.py"), recursive=True) + diffs = [] + for filename in all_files: + new_diffs = is_copy_consistent(filename, overwrite) + diffs += [f"- {filename}: copy does not match {d[0]} at line {d[1]}" for d in new_diffs] + if not overwrite and len(diffs) > 0: + diff = "\n".join(diffs) + raise Exception( + "Found the following copy inconsistencies:\n" + + diff + + "\nRun `make fix-copies` or `python utils/check_copies.py --fix_and_overwrite` to fix them." + ) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument( + "--fix_and_overwrite", + action="store_true", + help="Whether to fix inconsistencies.", + ) + args = parser.parse_args() + + check_copies(args.fix_and_overwrite) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_doc_toc.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_doc_toc.py new file mode 100644 index 0000000000000000000000000000000000000000..050b093991e6c32437b2d4de7f58004de3012082 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_doc_toc.py @@ -0,0 +1,212 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +from collections import defaultdict + +import yaml + + +PATH_TO_TOC = "docs/source/en/_toctree.yml" + +# Titles that should maintain their position and not be sorted alphabetically +FIXED_POSITION_TITLES = {"overview", "autopipeline"} + + +def clean_doc_toc(doc_list): + """ + Cleans the table of content of the model documentation by removing duplicates and sorting models alphabetically. + """ + counts = defaultdict(int) + fixed_position_docs = [] + new_doc_list = [] + for doc in doc_list: + if "local" in doc: + counts[doc["local"]] += 1 + + if doc["title"].lower() in FIXED_POSITION_TITLES: + fixed_position_docs.append({"local": doc["local"], "title": doc["title"]}) + else: + new_doc_list.append(doc) + + doc_list = new_doc_list + duplicates = [key for key, value in counts.items() if value > 1] + + new_doc = [] + for duplicate_key in duplicates: + titles = list({doc["title"] for doc in doc_list if doc["local"] == duplicate_key}) + if len(titles) > 1: + raise ValueError( + f"{duplicate_key} is present several times in the documentation table of content at " + "`docs/source/en/_toctree.yml` with different *Title* values. Choose one of those and remove the " + "others." + ) + # Only add this once + new_doc.append({"local": duplicate_key, "title": titles[0]}) + + # Add none duplicate-keys + new_doc.extend([doc for doc in doc_list if "local" not in counts or counts[doc["local"]] == 1]) + new_doc = sorted(new_doc, key=lambda s: s["title"].lower()) + + # Fixed-position titles maintain their original order + result = [] + for doc in fixed_position_docs: + result.append(doc) + + result.extend(new_doc) + return result + + +def check_scheduler_doc(overwrite=False): + with open(PATH_TO_TOC, encoding="utf-8") as f: + content = yaml.safe_load(f.read()) + + # Get to the API doc + api_idx = 0 + while content[api_idx]["title"] != "API": + api_idx += 1 + api_doc = content[api_idx]["sections"] + + # Then to the model doc + scheduler_idx = 0 + while api_doc[scheduler_idx]["title"] != "Schedulers": + scheduler_idx += 1 + + scheduler_doc = api_doc[scheduler_idx]["sections"] + new_scheduler_doc = clean_doc_toc(scheduler_doc) + + diff = False + if new_scheduler_doc != scheduler_doc: + diff = True + if overwrite: + api_doc[scheduler_idx]["sections"] = new_scheduler_doc + + if diff: + if overwrite: + content[api_idx]["sections"] = api_doc + with open(PATH_TO_TOC, "w", encoding="utf-8") as f: + f.write(yaml.dump(content, allow_unicode=True)) + else: + raise ValueError( + "The model doc part of the table of content is not properly sorted, run `make style` to fix this." + ) + + +def check_pipeline_doc(overwrite=False): + with open(PATH_TO_TOC, encoding="utf-8") as f: + content = yaml.safe_load(f.read()) + + # Get to the API doc + api_idx = 0 + while content[api_idx]["title"] != "API": + api_idx += 1 + api_doc = content[api_idx]["sections"] + + # Then to the model doc + pipeline_idx = 0 + while api_doc[pipeline_idx]["title"] != "Pipelines": + pipeline_idx += 1 + + diff = False + pipeline_docs = api_doc[pipeline_idx]["sections"] + new_pipeline_docs = [] + + # sort sub pipeline docs + for pipeline_doc in pipeline_docs: + if "sections" in pipeline_doc: + sub_pipeline_doc = pipeline_doc["sections"] + new_sub_pipeline_doc = clean_doc_toc(sub_pipeline_doc) + if new_sub_pipeline_doc != sub_pipeline_doc: + diff = True + if overwrite: + pipeline_doc["sections"] = new_sub_pipeline_doc + new_pipeline_docs.append(pipeline_doc) + + # sort overall pipeline doc + new_pipeline_docs = clean_doc_toc(new_pipeline_docs) + + if new_pipeline_docs != pipeline_docs: + diff = True + if overwrite: + api_doc[pipeline_idx]["sections"] = new_pipeline_docs + + if diff: + if overwrite: + content[api_idx]["sections"] = api_doc + with open(PATH_TO_TOC, "w", encoding="utf-8") as f: + f.write(yaml.dump(content, allow_unicode=True)) + else: + raise ValueError( + "The model doc part of the table of content is not properly sorted, run `make style` to fix this." + ) + + +def check_model_doc(overwrite=False): + with open(PATH_TO_TOC, encoding="utf-8") as f: + content = yaml.safe_load(f.read()) + + # Get to the API doc + api_idx = 0 + while content[api_idx]["title"] != "API": + api_idx += 1 + api_doc = content[api_idx]["sections"] + + # Then to the model doc + model_idx = 0 + while api_doc[model_idx]["title"] != "Models": + model_idx += 1 + + diff = False + model_docs = api_doc[model_idx]["sections"] + new_model_docs = [] + + # sort sub model docs + for model_doc in model_docs: + if "sections" in model_doc: + sub_model_doc = model_doc["sections"] + new_sub_model_doc = clean_doc_toc(sub_model_doc) + if new_sub_model_doc != sub_model_doc: + diff = True + if overwrite: + model_doc["sections"] = new_sub_model_doc + new_model_docs.append(model_doc) + + # sort overall model doc + new_model_docs = clean_doc_toc(new_model_docs) + + if new_model_docs != model_docs: + diff = True + if overwrite: + api_doc[model_idx]["sections"] = new_model_docs + + if diff: + if overwrite: + content[api_idx]["sections"] = api_doc + with open(PATH_TO_TOC, "w", encoding="utf-8") as f: + f.write(yaml.dump(content, allow_unicode=True)) + else: + raise ValueError( + "The model doc part of the table of content is not properly sorted, run `make style` to fix this." + ) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--fix_and_overwrite", action="store_true", help="Whether to fix inconsistencies.") + args = parser.parse_args() + + check_scheduler_doc(args.fix_and_overwrite) + check_pipeline_doc(args.fix_and_overwrite) + check_model_doc(args.fix_and_overwrite) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_dummies.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_dummies.py new file mode 100644 index 0000000000000000000000000000000000000000..04a670c2f5d91c76b32b2c6d200b342675df6bb0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_dummies.py @@ -0,0 +1,175 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +import os +import re + + +# All paths are set with the intent you should run this script from the root of the repo with the command +# python utils/check_dummies.py +PATH_TO_DIFFUSERS = "src/diffusers" + +# Matches is_xxx_available() +_re_backend = re.compile(r"is\_([a-z_]*)_available\(\)") +# Matches from xxx import bla +_re_single_line_import = re.compile(r"\s+from\s+\S*\s+import\s+([^\(\s].*)\n") + + +DUMMY_CONSTANT = """ +{0} = None +""" + +DUMMY_CLASS = """ +class {0}(metaclass=DummyObject): + _backends = {1} + + def __init__(self, *args, **kwargs): + requires_backends(self, {1}) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, {1}) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, {1}) +""" + + +DUMMY_FUNCTION = """ +def {0}(*args, **kwargs): + requires_backends({0}, {1}) +""" + + +def find_backend(line): + """Find one (or multiple) backend in a code line of the init.""" + backends = _re_backend.findall(line) + if len(backends) == 0: + return None + + return "_and_".join(backends) + + +def read_init(): + """Read the init and extracts PyTorch, TensorFlow, SentencePiece and Tokenizers objects.""" + with open(os.path.join(PATH_TO_DIFFUSERS, "__init__.py"), "r", encoding="utf-8", newline="\n") as f: + lines = f.readlines() + + # Get to the point we do the actual imports for type checking + line_index = 0 + while not lines[line_index].startswith("if TYPE_CHECKING"): + line_index += 1 + + backend_specific_objects = {} + # Go through the end of the file + while line_index < len(lines): + # If the line contains is_backend_available, we grab all objects associated with the `else` block + backend = find_backend(lines[line_index]) + if backend is not None: + while not lines[line_index].startswith(" else:"): + line_index += 1 + line_index += 1 + objects = [] + # Until we unindent, add backend objects to the list + while len(lines[line_index]) <= 1 or lines[line_index].startswith(" " * 8): + line = lines[line_index] + single_line_import_search = _re_single_line_import.search(line) + if single_line_import_search is not None: + objects.extend(single_line_import_search.groups()[0].split(", ")) + elif line.startswith(" " * 12): + objects.append(line[12:-2]) + line_index += 1 + + if len(objects) > 0: + backend_specific_objects[backend] = objects + else: + line_index += 1 + + return backend_specific_objects + + +def create_dummy_object(name, backend_name): + """Create the code for the dummy object corresponding to `name`.""" + if name.isupper(): + return DUMMY_CONSTANT.format(name) + elif name.islower(): + return DUMMY_FUNCTION.format(name, backend_name) + else: + return DUMMY_CLASS.format(name, backend_name) + + +def create_dummy_files(backend_specific_objects=None): + """Create the content of the dummy files.""" + if backend_specific_objects is None: + backend_specific_objects = read_init() + # For special correspondence backend to module name as used in the function requires_modulename + dummy_files = {} + + for backend, objects in backend_specific_objects.items(): + backend_name = "[" + ", ".join(f'"{b}"' for b in backend.split("_and_")) + "]" + dummy_file = "# This file is autogenerated by the command `make fix-copies`, do not edit.\n" + dummy_file += "from ..utils import DummyObject, requires_backends\n\n" + dummy_file += "\n".join([create_dummy_object(o, backend_name) for o in objects]) + dummy_files[backend] = dummy_file + + return dummy_files + + +def check_dummies(overwrite=False): + """Check if the dummy files are up to date and maybe `overwrite` with the right content.""" + dummy_files = create_dummy_files() + # For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py + short_names = {"torch": "pt"} + + # Locate actual dummy modules and read their content. + path = os.path.join(PATH_TO_DIFFUSERS, "utils") + dummy_file_paths = { + backend: os.path.join(path, f"dummy_{short_names.get(backend, backend)}_objects.py") + for backend in dummy_files.keys() + } + + actual_dummies = {} + for backend, file_path in dummy_file_paths.items(): + if os.path.isfile(file_path): + with open(file_path, "r", encoding="utf-8", newline="\n") as f: + actual_dummies[backend] = f.read() + else: + actual_dummies[backend] = "" + + for backend in dummy_files.keys(): + if dummy_files[backend] != actual_dummies[backend]: + if overwrite: + print( + f"Updating diffusers.utils.dummy_{short_names.get(backend, backend)}_objects.py as the main " + "__init__ has new objects." + ) + with open(dummy_file_paths[backend], "w", encoding="utf-8", newline="\n") as f: + f.write(dummy_files[backend]) + else: + raise ValueError( + "The main __init__ has objects that are not present in " + f"diffusers.utils.dummy_{short_names.get(backend, backend)}_objects.py. Run `make fix-copies` " + "to fix this." + ) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--fix_and_overwrite", action="store_true", help="Whether to fix inconsistencies.") + args = parser.parse_args() + + check_dummies(args.fix_and_overwrite) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_inits.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_inits.py new file mode 100644 index 0000000000000000000000000000000000000000..8208fa634186536767054e8fb5f0d6f81bee7ba0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_inits.py @@ -0,0 +1,299 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import collections +import importlib.util +import os +import re +from pathlib import Path + + +PATH_TO_TRANSFORMERS = "src/transformers" + + +# Matches is_xxx_available() +_re_backend = re.compile(r"is\_([a-z_]*)_available()") +# Catches a one-line _import_struct = {xxx} +_re_one_line_import_struct = re.compile(r"^_import_structure\s+=\s+\{([^\}]+)\}") +# Catches a line with a key-values pattern: "bla": ["foo", "bar"] +_re_import_struct_key_value = re.compile(r'\s+"\S*":\s+\[([^\]]*)\]') +# Catches a line if not is_foo_available +_re_test_backend = re.compile(r"^\s*if\s+not\s+is\_[a-z_]*\_available\(\)") +# Catches a line _import_struct["bla"].append("foo") +_re_import_struct_add_one = re.compile(r'^\s*_import_structure\["\S*"\]\.append\("(\S*)"\)') +# Catches a line _import_struct["bla"].extend(["foo", "bar"]) or _import_struct["bla"] = ["foo", "bar"] +_re_import_struct_add_many = re.compile(r"^\s*_import_structure\[\S*\](?:\.extend\(|\s*=\s+)\[([^\]]*)\]") +# Catches a line with an object between quotes and a comma: "MyModel", +_re_quote_object = re.compile(r'^\s+"([^"]+)",') +# Catches a line with objects between brackets only: ["foo", "bar"], +_re_between_brackets = re.compile(r"^\s+\[([^\]]+)\]") +# Catches a line with from foo import bar, bla, boo +_re_import = re.compile(r"\s+from\s+\S*\s+import\s+([^\(\s].*)\n") +# Catches a line with try: +_re_try = re.compile(r"^\s*try:") +# Catches a line with else: +_re_else = re.compile(r"^\s*else:") + + +def find_backend(line): + """Find one (or multiple) backend in a code line of the init.""" + if _re_test_backend.search(line) is None: + return None + backends = [b[0] for b in _re_backend.findall(line)] + backends.sort() + return "_and_".join(backends) + + +def parse_init(init_file): + """ + Read an init_file and parse (per backend) the _import_structure objects defined and the TYPE_CHECKING objects + defined + """ + with open(init_file, "r", encoding="utf-8", newline="\n") as f: + lines = f.readlines() + + line_index = 0 + while line_index < len(lines) and not lines[line_index].startswith("_import_structure = {"): + line_index += 1 + + # If this is a traditional init, just return. + if line_index >= len(lines): + return None + + # First grab the objects without a specific backend in _import_structure + objects = [] + while not lines[line_index].startswith("if TYPE_CHECKING") and find_backend(lines[line_index]) is None: + line = lines[line_index] + # If we have everything on a single line, let's deal with it. + if _re_one_line_import_struct.search(line): + content = _re_one_line_import_struct.search(line).groups()[0] + imports = re.findall(r"\[([^\]]+)\]", content) + for imp in imports: + objects.extend([obj[1:-1] for obj in imp.split(", ")]) + line_index += 1 + continue + single_line_import_search = _re_import_struct_key_value.search(line) + if single_line_import_search is not None: + imports = [obj[1:-1] for obj in single_line_import_search.groups()[0].split(", ") if len(obj) > 0] + objects.extend(imports) + elif line.startswith(" " * 8 + '"'): + objects.append(line[9:-3]) + line_index += 1 + + import_dict_objects = {"none": objects} + # Let's continue with backend-specific objects in _import_structure + while not lines[line_index].startswith("if TYPE_CHECKING"): + # If the line is an if not is_backend_available, we grab all objects associated. + backend = find_backend(lines[line_index]) + # Check if the backend declaration is inside a try block: + if _re_try.search(lines[line_index - 1]) is None: + backend = None + + if backend is not None: + line_index += 1 + + # Scroll until we hit the else block of try-except-else + while _re_else.search(lines[line_index]) is None: + line_index += 1 + + line_index += 1 + + objects = [] + # Until we unindent, add backend objects to the list + while len(lines[line_index]) <= 1 or lines[line_index].startswith(" " * 4): + line = lines[line_index] + if _re_import_struct_add_one.search(line) is not None: + objects.append(_re_import_struct_add_one.search(line).groups()[0]) + elif _re_import_struct_add_many.search(line) is not None: + imports = _re_import_struct_add_many.search(line).groups()[0].split(", ") + imports = [obj[1:-1] for obj in imports if len(obj) > 0] + objects.extend(imports) + elif _re_between_brackets.search(line) is not None: + imports = _re_between_brackets.search(line).groups()[0].split(", ") + imports = [obj[1:-1] for obj in imports if len(obj) > 0] + objects.extend(imports) + elif _re_quote_object.search(line) is not None: + objects.append(_re_quote_object.search(line).groups()[0]) + elif line.startswith(" " * 8 + '"'): + objects.append(line[9:-3]) + elif line.startswith(" " * 12 + '"'): + objects.append(line[13:-3]) + line_index += 1 + + import_dict_objects[backend] = objects + else: + line_index += 1 + + # At this stage we are in the TYPE_CHECKING part, first grab the objects without a specific backend + objects = [] + while ( + line_index < len(lines) + and find_backend(lines[line_index]) is None + and not lines[line_index].startswith("else") + ): + line = lines[line_index] + single_line_import_search = _re_import.search(line) + if single_line_import_search is not None: + objects.extend(single_line_import_search.groups()[0].split(", ")) + elif line.startswith(" " * 8): + objects.append(line[8:-2]) + line_index += 1 + + type_hint_objects = {"none": objects} + # Let's continue with backend-specific objects + while line_index < len(lines): + # If the line is an if is_backend_available, we grab all objects associated. + backend = find_backend(lines[line_index]) + # Check if the backend declaration is inside a try block: + if _re_try.search(lines[line_index - 1]) is None: + backend = None + + if backend is not None: + line_index += 1 + + # Scroll until we hit the else block of try-except-else + while _re_else.search(lines[line_index]) is None: + line_index += 1 + + line_index += 1 + + objects = [] + # Until we unindent, add backend objects to the list + while len(lines[line_index]) <= 1 or lines[line_index].startswith(" " * 8): + line = lines[line_index] + single_line_import_search = _re_import.search(line) + if single_line_import_search is not None: + objects.extend(single_line_import_search.groups()[0].split(", ")) + elif line.startswith(" " * 12): + objects.append(line[12:-2]) + line_index += 1 + + type_hint_objects[backend] = objects + else: + line_index += 1 + + return import_dict_objects, type_hint_objects + + +def analyze_results(import_dict_objects, type_hint_objects): + """ + Analyze the differences between _import_structure objects and TYPE_CHECKING objects found in an init. + """ + + def find_duplicates(seq): + return [k for k, v in collections.Counter(seq).items() if v > 1] + + if list(import_dict_objects.keys()) != list(type_hint_objects.keys()): + return ["Both sides of the init do not have the same backends!"] + + errors = [] + for key in import_dict_objects.keys(): + duplicate_imports = find_duplicates(import_dict_objects[key]) + if duplicate_imports: + errors.append(f"Duplicate _import_structure definitions for: {duplicate_imports}") + duplicate_type_hints = find_duplicates(type_hint_objects[key]) + if duplicate_type_hints: + errors.append(f"Duplicate TYPE_CHECKING objects for: {duplicate_type_hints}") + + if sorted(set(import_dict_objects[key])) != sorted(set(type_hint_objects[key])): + name = "base imports" if key == "none" else f"{key} backend" + errors.append(f"Differences for {name}:") + for a in type_hint_objects[key]: + if a not in import_dict_objects[key]: + errors.append(f" {a} in TYPE_HINT but not in _import_structure.") + for a in import_dict_objects[key]: + if a not in type_hint_objects[key]: + errors.append(f" {a} in _import_structure but not in TYPE_HINT.") + return errors + + +def check_all_inits(): + """ + Check all inits in the transformers repo and raise an error if at least one does not define the same objects in + both halves. + """ + failures = [] + for root, _, files in os.walk(PATH_TO_TRANSFORMERS): + if "__init__.py" in files: + fname = os.path.join(root, "__init__.py") + objects = parse_init(fname) + if objects is not None: + errors = analyze_results(*objects) + if len(errors) > 0: + errors[0] = f"Problem in {fname}, both halves do not define the same objects.\n{errors[0]}" + failures.append("\n".join(errors)) + if len(failures) > 0: + raise ValueError("\n\n".join(failures)) + + +def get_transformers_submodules(): + """ + Returns the list of Transformers submodules. + """ + submodules = [] + for path, directories, files in os.walk(PATH_TO_TRANSFORMERS): + for folder in directories: + # Ignore private modules + if folder.startswith("_"): + directories.remove(folder) + continue + # Ignore leftovers from branches (empty folders apart from pycache) + if len(list((Path(path) / folder).glob("*.py"))) == 0: + continue + short_path = str((Path(path) / folder).relative_to(PATH_TO_TRANSFORMERS)) + submodule = short_path.replace(os.path.sep, ".") + submodules.append(submodule) + for fname in files: + if fname == "__init__.py": + continue + short_path = str((Path(path) / fname).relative_to(PATH_TO_TRANSFORMERS)) + submodule = short_path.replace(".py", "").replace(os.path.sep, ".") + if len(submodule.split(".")) == 1: + submodules.append(submodule) + return submodules + + +IGNORE_SUBMODULES = [ + "convert_pytorch_checkpoint_to_tf2", + "modeling_flax_pytorch_utils", +] + + +def check_submodules(): + # This is to make sure the transformers module imported is the one in the repo. + spec = importlib.util.spec_from_file_location( + "transformers", + os.path.join(PATH_TO_TRANSFORMERS, "__init__.py"), + submodule_search_locations=[PATH_TO_TRANSFORMERS], + ) + transformers = spec.loader.load_module() + + module_not_registered = [ + module + for module in get_transformers_submodules() + if module not in IGNORE_SUBMODULES and module not in transformers._import_structure.keys() + ] + if len(module_not_registered) > 0: + list_of_modules = "\n".join(f"- {module}" for module in module_not_registered) + raise ValueError( + "The following submodules are not properly registered in the main init of Transformers:\n" + f"{list_of_modules}\n" + "Make sure they appear somewhere in the keys of `_import_structure` with an empty list as value." + ) + + +if __name__ == "__main__": + check_all_inits() + check_submodules() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_repo.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_repo.py new file mode 100644 index 0000000000000000000000000000000000000000..14bdbe60adf06e4b6a3f79378f68393cc083b6a3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_repo.py @@ -0,0 +1,755 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import importlib +import inspect +import os +import re +import warnings +from collections import OrderedDict +from difflib import get_close_matches +from pathlib import Path + +from diffusers.models.auto import get_values +from diffusers.utils import ENV_VARS_TRUE_VALUES, is_flax_available, is_torch_available + + +# All paths are set with the intent you should run this script from the root of the repo with the command +# python utils/check_repo.py +PATH_TO_DIFFUSERS = "src/diffusers" +PATH_TO_TESTS = "tests" +PATH_TO_DOC = "docs/source/en" + +# Update this list with models that are supposed to be private. +PRIVATE_MODELS = [ + "DPRSpanPredictor", + "RealmBertModel", + "T5Stack", + "TFDPRSpanPredictor", +] + +# Update this list for models that are not tested with a comment explaining the reason it should not be. +# Being in this list is an exception and should **not** be the rule. +IGNORE_NON_TESTED = PRIVATE_MODELS.copy() + [ + # models to ignore for not tested + "OPTDecoder", # Building part of bigger (tested) model. + "DecisionTransformerGPT2Model", # Building part of bigger (tested) model. + "SegformerDecodeHead", # Building part of bigger (tested) model. + "PLBartEncoder", # Building part of bigger (tested) model. + "PLBartDecoder", # Building part of bigger (tested) model. + "PLBartDecoderWrapper", # Building part of bigger (tested) model. + "BigBirdPegasusEncoder", # Building part of bigger (tested) model. + "BigBirdPegasusDecoder", # Building part of bigger (tested) model. + "BigBirdPegasusDecoderWrapper", # Building part of bigger (tested) model. + "DetrEncoder", # Building part of bigger (tested) model. + "DetrDecoder", # Building part of bigger (tested) model. + "DetrDecoderWrapper", # Building part of bigger (tested) model. + "M2M100Encoder", # Building part of bigger (tested) model. + "M2M100Decoder", # Building part of bigger (tested) model. + "Speech2TextEncoder", # Building part of bigger (tested) model. + "Speech2TextDecoder", # Building part of bigger (tested) model. + "LEDEncoder", # Building part of bigger (tested) model. + "LEDDecoder", # Building part of bigger (tested) model. + "BartDecoderWrapper", # Building part of bigger (tested) model. + "BartEncoder", # Building part of bigger (tested) model. + "BertLMHeadModel", # Needs to be setup as decoder. + "BlenderbotSmallEncoder", # Building part of bigger (tested) model. + "BlenderbotSmallDecoderWrapper", # Building part of bigger (tested) model. + "BlenderbotEncoder", # Building part of bigger (tested) model. + "BlenderbotDecoderWrapper", # Building part of bigger (tested) model. + "MBartEncoder", # Building part of bigger (tested) model. + "MBartDecoderWrapper", # Building part of bigger (tested) model. + "MegatronBertLMHeadModel", # Building part of bigger (tested) model. + "MegatronBertEncoder", # Building part of bigger (tested) model. + "MegatronBertDecoder", # Building part of bigger (tested) model. + "MegatronBertDecoderWrapper", # Building part of bigger (tested) model. + "PegasusEncoder", # Building part of bigger (tested) model. + "PegasusDecoderWrapper", # Building part of bigger (tested) model. + "DPREncoder", # Building part of bigger (tested) model. + "ProphetNetDecoderWrapper", # Building part of bigger (tested) model. + "RealmBertModel", # Building part of bigger (tested) model. + "RealmReader", # Not regular model. + "RealmScorer", # Not regular model. + "RealmForOpenQA", # Not regular model. + "ReformerForMaskedLM", # Needs to be setup as decoder. + "Speech2Text2DecoderWrapper", # Building part of bigger (tested) model. + "TFDPREncoder", # Building part of bigger (tested) model. + "TFElectraMainLayer", # Building part of bigger (tested) model (should it be a TFModelMixin ?) + "TFRobertaForMultipleChoice", # TODO: fix + "TrOCRDecoderWrapper", # Building part of bigger (tested) model. + "SeparableConv1D", # Building part of bigger (tested) model. + "FlaxBartForCausalLM", # Building part of bigger (tested) model. + "FlaxBertForCausalLM", # Building part of bigger (tested) model. Tested implicitly through FlaxRobertaForCausalLM. + "OPTDecoderWrapper", +] + +# Update this list with test files that don't have a tester with a `all_model_classes` variable and which don't +# trigger the common tests. +TEST_FILES_WITH_NO_COMMON_TESTS = [ + "models/decision_transformer/test_modeling_decision_transformer.py", + "models/camembert/test_modeling_camembert.py", + "models/mt5/test_modeling_flax_mt5.py", + "models/mbart/test_modeling_mbart.py", + "models/mt5/test_modeling_mt5.py", + "models/pegasus/test_modeling_pegasus.py", + "models/camembert/test_modeling_tf_camembert.py", + "models/mt5/test_modeling_tf_mt5.py", + "models/xlm_roberta/test_modeling_tf_xlm_roberta.py", + "models/xlm_roberta/test_modeling_flax_xlm_roberta.py", + "models/xlm_prophetnet/test_modeling_xlm_prophetnet.py", + "models/xlm_roberta/test_modeling_xlm_roberta.py", + "models/vision_text_dual_encoder/test_modeling_vision_text_dual_encoder.py", + "models/vision_text_dual_encoder/test_modeling_flax_vision_text_dual_encoder.py", + "models/decision_transformer/test_modeling_decision_transformer.py", +] + +# Update this list for models that are not in any of the auto MODEL_XXX_MAPPING. Being in this list is an exception and +# should **not** be the rule. +IGNORE_NON_AUTO_CONFIGURED = PRIVATE_MODELS.copy() + [ + # models to ignore for model xxx mapping + "DPTForDepthEstimation", + "DecisionTransformerGPT2Model", + "GLPNForDepthEstimation", + "ViltForQuestionAnswering", + "ViltForImagesAndTextClassification", + "ViltForImageAndTextRetrieval", + "ViltForMaskedLM", + "XGLMEncoder", + "XGLMDecoder", + "XGLMDecoderWrapper", + "PerceiverForMultimodalAutoencoding", + "PerceiverForOpticalFlow", + "SegformerDecodeHead", + "FlaxBeitForMaskedImageModeling", + "PLBartEncoder", + "PLBartDecoder", + "PLBartDecoderWrapper", + "BeitForMaskedImageModeling", + "CLIPTextModel", + "CLIPVisionModel", + "TFCLIPTextModel", + "TFCLIPVisionModel", + "FlaxCLIPTextModel", + "FlaxCLIPVisionModel", + "FlaxWav2Vec2ForCTC", + "DetrForSegmentation", + "DPRReader", + "FlaubertForQuestionAnswering", + "FlavaImageCodebook", + "FlavaTextModel", + "FlavaImageModel", + "FlavaMultimodalModel", + "GPT2DoubleHeadsModel", + "LukeForMaskedLM", + "LukeForEntityClassification", + "LukeForEntityPairClassification", + "LukeForEntitySpanClassification", + "OpenAIGPTDoubleHeadsModel", + "RagModel", + "RagSequenceForGeneration", + "RagTokenForGeneration", + "RealmEmbedder", + "RealmForOpenQA", + "RealmScorer", + "RealmReader", + "TFDPRReader", + "TFGPT2DoubleHeadsModel", + "TFOpenAIGPTDoubleHeadsModel", + "TFRagModel", + "TFRagSequenceForGeneration", + "TFRagTokenForGeneration", + "Wav2Vec2ForCTC", + "HubertForCTC", + "SEWForCTC", + "SEWDForCTC", + "XLMForQuestionAnswering", + "XLNetForQuestionAnswering", + "SeparableConv1D", + "VisualBertForRegionToPhraseAlignment", + "VisualBertForVisualReasoning", + "VisualBertForQuestionAnswering", + "VisualBertForMultipleChoice", + "TFWav2Vec2ForCTC", + "TFHubertForCTC", + "MaskFormerForInstanceSegmentation", +] + +# Update this list for models that have multiple model types for the same +# model doc +MODEL_TYPE_TO_DOC_MAPPING = OrderedDict( + [ + ("data2vec-text", "data2vec"), + ("data2vec-audio", "data2vec"), + ("data2vec-vision", "data2vec"), + ] +) + + +# This is to make sure the transformers module imported is the one in the repo. +spec = importlib.util.spec_from_file_location( + "diffusers", + os.path.join(PATH_TO_DIFFUSERS, "__init__.py"), + submodule_search_locations=[PATH_TO_DIFFUSERS], +) +diffusers = spec.loader.load_module() + + +def check_model_list(): + """Check the model list inside the transformers library.""" + # Get the models from the directory structure of `src/diffusers/models/` + models_dir = os.path.join(PATH_TO_DIFFUSERS, "models") + _models = [] + for model in os.listdir(models_dir): + model_dir = os.path.join(models_dir, model) + if os.path.isdir(model_dir) and "__init__.py" in os.listdir(model_dir): + _models.append(model) + + # Get the models from the directory structure of `src/transformers/models/` + models = [model for model in dir(diffusers.models) if not model.startswith("__")] + + missing_models = sorted(set(_models).difference(models)) + if missing_models: + raise Exception( + f"The following models should be included in {models_dir}/__init__.py: {','.join(missing_models)}." + ) + + +# If some modeling modules should be ignored for all checks, they should be added in the nested list +# _ignore_modules of this function. +def get_model_modules(): + """Get the model modules inside the transformers library.""" + _ignore_modules = [ + "modeling_auto", + "modeling_encoder_decoder", + "modeling_marian", + "modeling_mmbt", + "modeling_outputs", + "modeling_retribert", + "modeling_utils", + "modeling_flax_auto", + "modeling_flax_encoder_decoder", + "modeling_flax_utils", + "modeling_speech_encoder_decoder", + "modeling_flax_speech_encoder_decoder", + "modeling_flax_vision_encoder_decoder", + "modeling_transfo_xl_utilities", + "modeling_tf_auto", + "modeling_tf_encoder_decoder", + "modeling_tf_outputs", + "modeling_tf_pytorch_utils", + "modeling_tf_utils", + "modeling_tf_transfo_xl_utilities", + "modeling_tf_vision_encoder_decoder", + "modeling_vision_encoder_decoder", + ] + modules = [] + for model in dir(diffusers.models): + # There are some magic dunder attributes in the dir, we ignore them + if not model.startswith("__"): + model_module = getattr(diffusers.models, model) + for submodule in dir(model_module): + if submodule.startswith("modeling") and submodule not in _ignore_modules: + modeling_module = getattr(model_module, submodule) + if inspect.ismodule(modeling_module): + modules.append(modeling_module) + return modules + + +def get_models(module, include_pretrained=False): + """Get the objects in module that are models.""" + models = [] + model_classes = (diffusers.ModelMixin, diffusers.TFModelMixin, diffusers.FlaxModelMixin) + for attr_name in dir(module): + if not include_pretrained and ("Pretrained" in attr_name or "PreTrained" in attr_name): + continue + attr = getattr(module, attr_name) + if isinstance(attr, type) and issubclass(attr, model_classes) and attr.__module__ == module.__name__: + models.append((attr_name, attr)) + return models + + +def is_a_private_model(model): + """Returns True if the model should not be in the main init.""" + if model in PRIVATE_MODELS: + return True + + # Wrapper, Encoder and Decoder are all privates + if model.endswith("Wrapper"): + return True + if model.endswith("Encoder"): + return True + if model.endswith("Decoder"): + return True + return False + + +def check_models_are_in_init(): + """Checks all models defined in the library are in the main init.""" + models_not_in_init = [] + dir_transformers = dir(diffusers) + for module in get_model_modules(): + models_not_in_init += [ + model[0] for model in get_models(module, include_pretrained=True) if model[0] not in dir_transformers + ] + + # Remove private models + models_not_in_init = [model for model in models_not_in_init if not is_a_private_model(model)] + if len(models_not_in_init) > 0: + raise Exception(f"The following models should be in the main init: {','.join(models_not_in_init)}.") + + +# If some test_modeling files should be ignored when checking models are all tested, they should be added in the +# nested list _ignore_files of this function. +def get_model_test_files(): + """Get the model test files. + + The returned files should NOT contain the `tests` (i.e. `PATH_TO_TESTS` defined in this script). They will be + considered as paths relative to `tests`. A caller has to use `os.path.join(PATH_TO_TESTS, ...)` to access the files. + """ + + _ignore_files = [ + "test_modeling_common", + "test_modeling_encoder_decoder", + "test_modeling_flax_encoder_decoder", + "test_modeling_flax_speech_encoder_decoder", + "test_modeling_marian", + "test_modeling_tf_common", + "test_modeling_tf_encoder_decoder", + ] + test_files = [] + # Check both `PATH_TO_TESTS` and `PATH_TO_TESTS/models` + model_test_root = os.path.join(PATH_TO_TESTS, "models") + model_test_dirs = [] + for x in os.listdir(model_test_root): + x = os.path.join(model_test_root, x) + if os.path.isdir(x): + model_test_dirs.append(x) + + for target_dir in [PATH_TO_TESTS] + model_test_dirs: + for file_or_dir in os.listdir(target_dir): + path = os.path.join(target_dir, file_or_dir) + if os.path.isfile(path): + filename = os.path.split(path)[-1] + if "test_modeling" in filename and os.path.splitext(filename)[0] not in _ignore_files: + file = os.path.join(*path.split(os.sep)[1:]) + test_files.append(file) + + return test_files + + +# This is a bit hacky but I didn't find a way to import the test_file as a module and read inside the tester class +# for the all_model_classes variable. +def find_tested_models(test_file): + """Parse the content of test_file to detect what's in all_model_classes""" + # This is a bit hacky but I didn't find a way to import the test_file as a module and read inside the class + with open(os.path.join(PATH_TO_TESTS, test_file), "r", encoding="utf-8", newline="\n") as f: + content = f.read() + all_models = re.findall(r"all_model_classes\s+=\s+\(\s*\(([^\)]*)\)", content) + # Check with one less parenthesis as well + all_models += re.findall(r"all_model_classes\s+=\s+\(([^\)]*)\)", content) + if len(all_models) > 0: + model_tested = [] + for entry in all_models: + for line in entry.split(","): + name = line.strip() + if len(name) > 0: + model_tested.append(name) + return model_tested + + +def check_models_are_tested(module, test_file): + """Check models defined in module are tested in test_file.""" + # XxxModelMixin are not tested + defined_models = get_models(module) + tested_models = find_tested_models(test_file) + if tested_models is None: + if test_file.replace(os.path.sep, "/") in TEST_FILES_WITH_NO_COMMON_TESTS: + return + return [ + f"{test_file} should define `all_model_classes` to apply common tests to the models it tests. " + + "If this intentional, add the test filename to `TEST_FILES_WITH_NO_COMMON_TESTS` in the file " + + "`utils/check_repo.py`." + ] + failures = [] + for model_name, _ in defined_models: + if model_name not in tested_models and model_name not in IGNORE_NON_TESTED: + failures.append( + f"{model_name} is defined in {module.__name__} but is not tested in " + + f"{os.path.join(PATH_TO_TESTS, test_file)}. Add it to the all_model_classes in that file." + + "If common tests should not applied to that model, add its name to `IGNORE_NON_TESTED`" + + "in the file `utils/check_repo.py`." + ) + return failures + + +def check_all_models_are_tested(): + """Check all models are properly tested.""" + modules = get_model_modules() + test_files = get_model_test_files() + failures = [] + for module in modules: + test_file = [file for file in test_files if f"test_{module.__name__.split('.')[-1]}.py" in file] + if len(test_file) == 0: + failures.append(f"{module.__name__} does not have its corresponding test file {test_file}.") + elif len(test_file) > 1: + failures.append(f"{module.__name__} has several test files: {test_file}.") + else: + test_file = test_file[0] + new_failures = check_models_are_tested(module, test_file) + if new_failures is not None: + failures += new_failures + if len(failures) > 0: + raise Exception(f"There were {len(failures)} failures:\n" + "\n".join(failures)) + + +def get_all_auto_configured_models(): + """Return the list of all models in at least one auto class.""" + result = set() # To avoid duplicates we concatenate all model classes in a set. + if is_torch_available(): + for attr_name in dir(diffusers.models.auto.modeling_auto): + if attr_name.startswith("MODEL_") and attr_name.endswith("MAPPING_NAMES"): + result = result | set(get_values(getattr(diffusers.models.auto.modeling_auto, attr_name))) + if is_flax_available(): + for attr_name in dir(diffusers.models.auto.modeling_flax_auto): + if attr_name.startswith("FLAX_MODEL_") and attr_name.endswith("MAPPING_NAMES"): + result = result | set(get_values(getattr(diffusers.models.auto.modeling_flax_auto, attr_name))) + return list(result) + + +def ignore_unautoclassed(model_name): + """Rules to determine if `name` should be in an auto class.""" + # Special white list + if model_name in IGNORE_NON_AUTO_CONFIGURED: + return True + # Encoder and Decoder should be ignored + if "Encoder" in model_name or "Decoder" in model_name: + return True + return False + + +def check_models_are_auto_configured(module, all_auto_models): + """Check models defined in module are each in an auto class.""" + defined_models = get_models(module) + failures = [] + for model_name, _ in defined_models: + if model_name not in all_auto_models and not ignore_unautoclassed(model_name): + failures.append( + f"{model_name} is defined in {module.__name__} but is not present in any of the auto mapping. " + "If that is intended behavior, add its name to `IGNORE_NON_AUTO_CONFIGURED` in the file " + "`utils/check_repo.py`." + ) + return failures + + +def check_all_models_are_auto_configured(): + """Check all models are each in an auto class.""" + missing_backends = [] + if not is_torch_available(): + missing_backends.append("PyTorch") + if not is_flax_available(): + missing_backends.append("Flax") + if len(missing_backends) > 0: + missing = ", ".join(missing_backends) + if os.getenv("TRANSFORMERS_IS_CI", "").upper() in ENV_VARS_TRUE_VALUES: + raise Exception( + "Full quality checks require all backends to be installed (with `pip install -e .[dev]` in the " + f"Transformers repo, the following are missing: {missing}." + ) + else: + warnings.warn( + "Full quality checks require all backends to be installed (with `pip install -e .[dev]` in the " + f"Transformers repo, the following are missing: {missing}. While it's probably fine as long as you " + "didn't make any change in one of those backends modeling files, you should probably execute the " + "command above to be on the safe side." + ) + modules = get_model_modules() + all_auto_models = get_all_auto_configured_models() + failures = [] + for module in modules: + new_failures = check_models_are_auto_configured(module, all_auto_models) + if new_failures is not None: + failures += new_failures + if len(failures) > 0: + raise Exception(f"There were {len(failures)} failures:\n" + "\n".join(failures)) + + +_re_decorator = re.compile(r"^\s*@(\S+)\s+$") + + +def check_decorator_order(filename): + """Check that in the test file `filename` the slow decorator is always last.""" + with open(filename, "r", encoding="utf-8", newline="\n") as f: + lines = f.readlines() + decorator_before = None + errors = [] + for i, line in enumerate(lines): + search = _re_decorator.search(line) + if search is not None: + decorator_name = search.groups()[0] + if decorator_before is not None and decorator_name.startswith("parameterized"): + errors.append(i) + decorator_before = decorator_name + elif decorator_before is not None: + decorator_before = None + return errors + + +def check_all_decorator_order(): + """Check that in all test files, the slow decorator is always last.""" + errors = [] + for fname in os.listdir(PATH_TO_TESTS): + if fname.endswith(".py"): + filename = os.path.join(PATH_TO_TESTS, fname) + new_errors = check_decorator_order(filename) + errors += [f"- {filename}, line {i}" for i in new_errors] + if len(errors) > 0: + msg = "\n".join(errors) + raise ValueError( + "The parameterized decorator (and its variants) should always be first, but this is not the case in the" + f" following files:\n{msg}" + ) + + +def find_all_documented_objects(): + """Parse the content of all doc files to detect which classes and functions it documents""" + documented_obj = [] + for doc_file in Path(PATH_TO_DOC).glob("**/*.rst"): + with open(doc_file, "r", encoding="utf-8", newline="\n") as f: + content = f.read() + raw_doc_objs = re.findall(r"(?:autoclass|autofunction):: transformers.(\S+)\s+", content) + documented_obj += [obj.split(".")[-1] for obj in raw_doc_objs] + for doc_file in Path(PATH_TO_DOC).glob("**/*.md"): + with open(doc_file, "r", encoding="utf-8", newline="\n") as f: + content = f.read() + raw_doc_objs = re.findall(r"\[\[autodoc\]\]\s+(\S+)\s+", content) + documented_obj += [obj.split(".")[-1] for obj in raw_doc_objs] + return documented_obj + + +# One good reason for not being documented is to be deprecated. Put in this list deprecated objects. +DEPRECATED_OBJECTS = [ + "AutoModelWithLMHead", + "BartPretrainedModel", + "DataCollator", + "DataCollatorForSOP", + "GlueDataset", + "GlueDataTrainingArguments", + "LineByLineTextDataset", + "LineByLineWithRefDataset", + "LineByLineWithSOPTextDataset", + "PretrainedBartModel", + "PretrainedFSMTModel", + "SingleSentenceClassificationProcessor", + "SquadDataTrainingArguments", + "SquadDataset", + "SquadExample", + "SquadFeatures", + "SquadV1Processor", + "SquadV2Processor", + "TFAutoModelWithLMHead", + "TFBartPretrainedModel", + "TextDataset", + "TextDatasetForNextSentencePrediction", + "Wav2Vec2ForMaskedLM", + "Wav2Vec2Tokenizer", + "glue_compute_metrics", + "glue_convert_examples_to_features", + "glue_output_modes", + "glue_processors", + "glue_tasks_num_labels", + "squad_convert_examples_to_features", + "xnli_compute_metrics", + "xnli_output_modes", + "xnli_processors", + "xnli_tasks_num_labels", + "TFTrainer", + "TFTrainingArguments", +] + +# Exceptionally, some objects should not be documented after all rules passed. +# ONLY PUT SOMETHING IN THIS LIST AS A LAST RESORT! +UNDOCUMENTED_OBJECTS = [ + "AddedToken", # This is a tokenizers class. + "BasicTokenizer", # Internal, should never have been in the main init. + "CharacterTokenizer", # Internal, should never have been in the main init. + "DPRPretrainedReader", # Like an Encoder. + "DummyObject", # Just picked by mistake sometimes. + "MecabTokenizer", # Internal, should never have been in the main init. + "ModelCard", # Internal type. + "SqueezeBertModule", # Internal building block (should have been called SqueezeBertLayer) + "TFDPRPretrainedReader", # Like an Encoder. + "TransfoXLCorpus", # Internal type. + "WordpieceTokenizer", # Internal, should never have been in the main init. + "absl", # External module + "add_end_docstrings", # Internal, should never have been in the main init. + "add_start_docstrings", # Internal, should never have been in the main init. + "cached_path", # Internal used for downloading models. + "convert_tf_weight_name_to_pt_weight_name", # Internal used to convert model weights + "logger", # Internal logger + "logging", # External module + "requires_backends", # Internal function +] + +# This list should be empty. Objects in it should get their own doc page. +SHOULD_HAVE_THEIR_OWN_PAGE = [ + # Benchmarks + "PyTorchBenchmark", + "PyTorchBenchmarkArguments", + "TensorFlowBenchmark", + "TensorFlowBenchmarkArguments", +] + + +def ignore_undocumented(name): + """Rules to determine if `name` should be undocumented.""" + # NOT DOCUMENTED ON PURPOSE. + # Constants uppercase are not documented. + if name.isupper(): + return True + # ModelMixins / Encoders / Decoders / Layers / Embeddings / Attention are not documented. + if ( + name.endswith("ModelMixin") + or name.endswith("Decoder") + or name.endswith("Encoder") + or name.endswith("Layer") + or name.endswith("Embeddings") + or name.endswith("Attention") + ): + return True + # Submodules are not documented. + if os.path.isdir(os.path.join(PATH_TO_DIFFUSERS, name)) or os.path.isfile( + os.path.join(PATH_TO_DIFFUSERS, f"{name}.py") + ): + return True + # All load functions are not documented. + if name.startswith("load_tf") or name.startswith("load_pytorch"): + return True + # is_xxx_available functions are not documented. + if name.startswith("is_") and name.endswith("_available"): + return True + # Deprecated objects are not documented. + if name in DEPRECATED_OBJECTS or name in UNDOCUMENTED_OBJECTS: + return True + # MMBT model does not really work. + if name.startswith("MMBT"): + return True + if name in SHOULD_HAVE_THEIR_OWN_PAGE: + return True + return False + + +def check_all_objects_are_documented(): + """Check all models are properly documented.""" + documented_objs = find_all_documented_objects() + modules = diffusers._modules + objects = [c for c in dir(diffusers) if c not in modules and not c.startswith("_")] + undocumented_objs = [c for c in objects if c not in documented_objs and not ignore_undocumented(c)] + if len(undocumented_objs) > 0: + raise Exception( + "The following objects are in the public init so should be documented:\n - " + + "\n - ".join(undocumented_objs) + ) + check_docstrings_are_in_md() + check_model_type_doc_match() + + +def check_model_type_doc_match(): + """Check all doc pages have a corresponding model type.""" + model_doc_folder = Path(PATH_TO_DOC) / "model_doc" + model_docs = [m.stem for m in model_doc_folder.glob("*.md")] + + model_types = list(diffusers.models.auto.configuration_auto.MODEL_NAMES_MAPPING.keys()) + model_types = [MODEL_TYPE_TO_DOC_MAPPING[m] if m in MODEL_TYPE_TO_DOC_MAPPING else m for m in model_types] + + errors = [] + for m in model_docs: + if m not in model_types and m != "auto": + close_matches = get_close_matches(m, model_types) + error_message = f"{m} is not a proper model identifier." + if len(close_matches) > 0: + close_matches = "/".join(close_matches) + error_message += f" Did you mean {close_matches}?" + errors.append(error_message) + + if len(errors) > 0: + raise ValueError( + "Some model doc pages do not match any existing model type:\n" + + "\n".join(errors) + + "\nYou can add any missing model type to the `MODEL_NAMES_MAPPING` constant in " + "models/auto/configuration_auto.py." + ) + + +# Re pattern to catch :obj:`xx`, :class:`xx`, :func:`xx` or :meth:`xx`. +_re_rst_special_words = re.compile(r":(?:obj|func|class|meth):`([^`]+)`") +# Re pattern to catch things between double backquotes. +_re_double_backquotes = re.compile(r"(^|[^`])``([^`]+)``([^`]|$)") +# Re pattern to catch example introduction. +_re_rst_example = re.compile(r"^\s*Example.*::\s*$", flags=re.MULTILINE) + + +def is_rst_docstring(docstring): + """ + Returns `True` if `docstring` is written in rst. + """ + if _re_rst_special_words.search(docstring) is not None: + return True + if _re_double_backquotes.search(docstring) is not None: + return True + if _re_rst_example.search(docstring) is not None: + return True + return False + + +def check_docstrings_are_in_md(): + """Check all docstrings are in md""" + files_with_rst = [] + for file in Path(PATH_TO_DIFFUSERS).glob("**/*.py"): + with open(file, "r") as f: + code = f.read() + docstrings = code.split('"""') + + for idx, docstring in enumerate(docstrings): + if idx % 2 == 0 or not is_rst_docstring(docstring): + continue + files_with_rst.append(file) + break + + if len(files_with_rst) > 0: + raise ValueError( + "The following files have docstrings written in rst:\n" + + "\n".join([f"- {f}" for f in files_with_rst]) + + "\nTo fix this run `doc-builder convert path_to_py_file` after installing `doc-builder`\n" + "(`pip install git+https://github.com/huggingface/doc-builder`)" + ) + + +def check_repo_quality(): + """Check all models are properly tested and documented.""" + print("Checking all models are included.") + check_model_list() + print("Checking all models are public.") + check_models_are_in_init() + print("Checking all models are properly tested.") + check_all_decorator_order() + check_all_models_are_tested() + print("Checking all objects are properly documented.") + check_all_objects_are_documented() + print("Checking all models are in at least one auto class.") + check_all_models_are_auto_configured() + + +if __name__ == "__main__": + check_repo_quality() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_support_list.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_support_list.py new file mode 100644 index 0000000000000000000000000000000000000000..ade9df3b64faa2e9daa227e36c036df4e69116bc --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_support_list.py @@ -0,0 +1,124 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +""" +Utility that checks that modules like attention processors are listed in the documentation file. + +```bash +python utils/check_support_list.py +``` + +It has no auto-fix mode. +""" + +import os +import re + + +# All paths are set with the intent that you run this script from the root of the repo +REPO_PATH = "." + + +def read_documented_classes(doc_path, autodoc_regex=r"\[\[autodoc\]\]\s([^\n]+)"): + """ + Reads documented classes from a doc file using a regex to find lines like [[autodoc]] my.module.Class. + Returns a list of documented class names (just the class name portion). + """ + with open(os.path.join(REPO_PATH, doc_path), "r") as f: + doctext = f.read() + matches = re.findall(autodoc_regex, doctext) + return [match.split(".")[-1] for match in matches] + + +def read_source_classes(src_path, class_regex, exclude_conditions=None): + """ + Reads class names from a source file using a regex that captures class definitions. + Optionally exclude classes based on a list of conditions (functions that take class name and return bool). + """ + if exclude_conditions is None: + exclude_conditions = [] + with open(os.path.join(REPO_PATH, src_path), "r") as f: + doctext = f.read() + classes = re.findall(class_regex, doctext) + # Filter out classes that meet any of the exclude conditions + filtered_classes = [c for c in classes if not any(cond(c) for cond in exclude_conditions)] + return filtered_classes + + +def check_documentation(doc_path, src_path, doc_regex, src_regex, exclude_conditions=None): + """ + Generic function to check if all classes defined in `src_path` are documented in `doc_path`. + Returns a set of undocumented class names. + """ + documented = set(read_documented_classes(doc_path, doc_regex)) + source_classes = set(read_source_classes(src_path, src_regex, exclude_conditions=exclude_conditions)) + + # Find which classes in source are not documented in a deterministic way. + undocumented = sorted(source_classes - documented) + return undocumented + + +if __name__ == "__main__": + # Define the checks we need to perform + checks = { + "Attention Processors": { + "doc_path": "docs/source/en/api/attnprocessor.md", + "src_path": "src/diffusers/models/attention_processor.py", + "doc_regex": r"\[\[autodoc\]\]\s([^\n]+)", + "src_regex": r"class\s+(\w+Processor(?:\d*_?\d*))[:(]", + "exclude_conditions": [lambda c: "LoRA" in c, lambda c: c == "Attention"], + }, + "Image Processors": { + "doc_path": "docs/source/en/api/image_processor.md", + "src_path": "src/diffusers/image_processor.py", + "doc_regex": r"\[\[autodoc\]\]\s([^\n]+)", + "src_regex": r"class\s+(\w+Processor(?:\d*_?\d*))[:(]", + }, + "Activations": { + "doc_path": "docs/source/en/api/activations.md", + "src_path": "src/diffusers/models/activations.py", + "doc_regex": r"\[\[autodoc\]\]\s([^\n]+)", + "src_regex": r"class\s+(\w+)\s*\(.*?nn\.Module.*?\):", + }, + "Normalizations": { + "doc_path": "docs/source/en/api/normalization.md", + "src_path": "src/diffusers/models/normalization.py", + "doc_regex": r"\[\[autodoc\]\]\s([^\n]+)", + "src_regex": r"class\s+(\w+)\s*\(.*?nn\.Module.*?\):", + "exclude_conditions": [ + # Exclude LayerNorm as it's an intentional exception + lambda c: c == "LayerNorm" + ], + }, + "LoRA Mixins": { + "doc_path": "docs/source/en/api/loaders/lora.md", + "src_path": "src/diffusers/loaders/lora_pipeline.py", + "doc_regex": r"\[\[autodoc\]\]\s([^\n]+)", + "src_regex": r"class\s+(\w+LoraLoaderMixin(?:\d*_?\d*))[:(]", + }, + } + + missing_items = {} + for category, params in checks.items(): + undocumented = check_documentation( + doc_path=params["doc_path"], + src_path=params["src_path"], + doc_regex=params["doc_regex"], + src_regex=params["src_regex"], + exclude_conditions=params.get("exclude_conditions"), + ) + if undocumented: + missing_items[category] = undocumented + + # If we have any missing items, raise a single combined error + if missing_items: + error_msg = ["Some classes are not documented properly:\n"] + for category, classes in missing_items.items(): + error_msg.append(f"- {category}: {', '.join(sorted(classes))}") + raise ValueError("\n".join(error_msg)) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_table.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_table.py new file mode 100644 index 0000000000000000000000000000000000000000..83c29aa74eca042df81386a73c12ffaf128fc4c2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/check_table.py @@ -0,0 +1,185 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +import collections +import importlib.util +import os +import re + + +# All paths are set with the intent you should run this script from the root of the repo with the command +# python utils/check_table.py +TRANSFORMERS_PATH = "src/diffusers" +PATH_TO_DOCS = "docs/source/en" +REPO_PATH = "." + + +def _find_text_in_file(filename, start_prompt, end_prompt): + """ + Find the text in `filename` between a line beginning with `start_prompt` and before `end_prompt`, removing empty + lines. + """ + with open(filename, "r", encoding="utf-8", newline="\n") as f: + lines = f.readlines() + # Find the start prompt. + start_index = 0 + while not lines[start_index].startswith(start_prompt): + start_index += 1 + start_index += 1 + + end_index = start_index + while not lines[end_index].startswith(end_prompt): + end_index += 1 + end_index -= 1 + + while len(lines[start_index]) <= 1: + start_index += 1 + while len(lines[end_index]) <= 1: + end_index -= 1 + end_index += 1 + return "".join(lines[start_index:end_index]), start_index, end_index, lines + + +# Add here suffixes that are used to identify models, separated by | +ALLOWED_MODEL_SUFFIXES = "Model|Encoder|Decoder|ForConditionalGeneration" +# Regexes that match TF/Flax/PT model names. +_re_tf_models = re.compile(r"TF(.*)(?:Model|Encoder|Decoder|ForConditionalGeneration)") +_re_flax_models = re.compile(r"Flax(.*)(?:Model|Encoder|Decoder|ForConditionalGeneration)") +# Will match any TF or Flax model too so need to be in an else branch afterthe two previous regexes. +_re_pt_models = re.compile(r"(.*)(?:Model|Encoder|Decoder|ForConditionalGeneration)") + + +# This is to make sure the diffusers module imported is the one in the repo. +spec = importlib.util.spec_from_file_location( + "diffusers", + os.path.join(TRANSFORMERS_PATH, "__init__.py"), + submodule_search_locations=[TRANSFORMERS_PATH], +) +diffusers_module = spec.loader.load_module() + + +# Thanks to https://stackoverflow.com/questions/29916065/how-to-do-camelcase-split-in-python +def camel_case_split(identifier): + """Split a camelcased `identifier` into words.""" + matches = re.finditer(".+?(?:(?<=[a-z])(?=[A-Z])|(?<=[A-Z])(?=[A-Z][a-z])|$)", identifier) + return [m.group(0) for m in matches] + + +def _center_text(text, width): + text_length = 2 if text == "✅" or text == "❌" else len(text) + left_indent = (width - text_length) // 2 + right_indent = width - text_length - left_indent + return " " * left_indent + text + " " * right_indent + + +def get_model_table_from_auto_modules(): + """Generates an up-to-date model table from the content of the auto modules.""" + # Dictionary model names to config. + config_mapping_names = diffusers_module.models.auto.configuration_auto.CONFIG_MAPPING_NAMES + model_name_to_config = { + name: config_mapping_names[code] + for code, name in diffusers_module.MODEL_NAMES_MAPPING.items() + if code in config_mapping_names + } + model_name_to_prefix = {name: config.replace("ConfigMixin", "") for name, config in model_name_to_config.items()} + + # Dictionaries flagging if each model prefix has a slow/fast tokenizer, backend in PT/TF/Flax. + slow_tokenizers = collections.defaultdict(bool) + fast_tokenizers = collections.defaultdict(bool) + pt_models = collections.defaultdict(bool) + tf_models = collections.defaultdict(bool) + flax_models = collections.defaultdict(bool) + + # Let's lookup through all diffusers object (once). + for attr_name in dir(diffusers_module): + lookup_dict = None + if attr_name.endswith("Tokenizer"): + lookup_dict = slow_tokenizers + attr_name = attr_name[:-9] + elif attr_name.endswith("TokenizerFast"): + lookup_dict = fast_tokenizers + attr_name = attr_name[:-13] + elif _re_tf_models.match(attr_name) is not None: + lookup_dict = tf_models + attr_name = _re_tf_models.match(attr_name).groups()[0] + elif _re_flax_models.match(attr_name) is not None: + lookup_dict = flax_models + attr_name = _re_flax_models.match(attr_name).groups()[0] + elif _re_pt_models.match(attr_name) is not None: + lookup_dict = pt_models + attr_name = _re_pt_models.match(attr_name).groups()[0] + + if lookup_dict is not None: + while len(attr_name) > 0: + if attr_name in model_name_to_prefix.values(): + lookup_dict[attr_name] = True + break + # Try again after removing the last word in the name + attr_name = "".join(camel_case_split(attr_name)[:-1]) + + # Let's build that table! + model_names = list(model_name_to_config.keys()) + model_names.sort(key=str.lower) + columns = ["Model", "Tokenizer slow", "Tokenizer fast", "PyTorch support", "TensorFlow support", "Flax Support"] + # We'll need widths to properly display everything in the center (+2 is to leave one extra space on each side). + widths = [len(c) + 2 for c in columns] + widths[0] = max([len(name) for name in model_names]) + 2 + + # Build the table per se + table = "|" + "|".join([_center_text(c, w) for c, w in zip(columns, widths)]) + "|\n" + # Use ":-----:" format to center-aligned table cell texts + table += "|" + "|".join([":" + "-" * (w - 2) + ":" for w in widths]) + "|\n" + + check = {True: "✅", False: "❌"} + for name in model_names: + prefix = model_name_to_prefix[name] + line = [ + name, + check[slow_tokenizers[prefix]], + check[fast_tokenizers[prefix]], + check[pt_models[prefix]], + check[tf_models[prefix]], + check[flax_models[prefix]], + ] + table += "|" + "|".join([_center_text(l, w) for l, w in zip(line, widths)]) + "|\n" + return table + + +def check_model_table(overwrite=False): + """Check the model table in the index.rst is consistent with the state of the lib and maybe `overwrite`.""" + current_table, start_index, end_index, lines = _find_text_in_file( + filename=os.path.join(PATH_TO_DOCS, "index.md"), + start_prompt="", + ) + new_table = get_model_table_from_auto_modules() + + if current_table != new_table: + if overwrite: + with open(os.path.join(PATH_TO_DOCS, "index.md"), "w", encoding="utf-8", newline="\n") as f: + f.writelines(lines[:start_index] + [new_table] + lines[end_index:]) + else: + raise ValueError( + "The model table in the `index.md` has not been updated. Run `make fix-copies` to fix this." + ) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--fix_and_overwrite", action="store_true", help="Whether to fix inconsistencies.") + args = parser.parse_args() + + check_model_table(args.fix_and_overwrite) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/consolidated_test_report.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/consolidated_test_report.py new file mode 100644 index 0000000000000000000000000000000000000000..134fecf721e44ab50c16d8ed3469c94c74ffd408 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/consolidated_test_report.py @@ -0,0 +1,789 @@ +#!/usr/bin/env python +import argparse +import glob +import os +import re +from datetime import date, datetime + +from slack_sdk import WebClient +from tabulate import tabulate + + +MAX_LEN_MESSAGE = 3001 # slack endpoint has a limit of 3001 characters + +parser = argparse.ArgumentParser() +parser.add_argument("--slack_channel_name", default="diffusers-ci-nightly") +parser.add_argument( + "--reports_dir", + default="reports", + help="Directory containing test reports (will search recursively in all subdirectories)", +) +parser.add_argument("--output_file", default=None, help="Path to save the consolidated report (markdown format)") + + +def parse_stats_file(file_path): + """Parse a stats file to extract test statistics.""" + try: + with open(file_path, "r") as f: + content = f.read() + + # Extract the numbers using regex + tests_pattern = r"collected (\d+) items" + passed_pattern = r"(\d+) passed" + failed_pattern = r"(\d+) failed" + skipped_pattern = r"(\d+) skipped" + xpassed_pattern = r"(\d+) xpassed" + + tests_match = re.search(tests_pattern, content) + passed_match = re.search(passed_pattern, content) + failed_match = re.search(failed_pattern, content) + skipped_match = re.search(skipped_pattern, content) + xpassed_match = re.search(xpassed_pattern, content) + + passed = int(passed_match.group(1)) if passed_match else 0 + failed = int(failed_match.group(1)) if failed_match else 0 + skipped = int(skipped_match.group(1)) if skipped_match else 0 + xpassed = int(xpassed_match.group(1)) if xpassed_match else 0 + + # If tests_match exists, use it, otherwise calculate from passed/failed/skipped + if tests_match: + tests = int(tests_match.group(1)) + else: + tests = passed + failed + skipped + xpassed + + # Extract timing information if available + timing_pattern = r"slowest \d+ test durations[\s\S]*?\n([\s\S]*?)={70}" + timing_match = re.search(timing_pattern, content, re.MULTILINE) + slowest_tests = [] + + if timing_match: + timing_text = timing_match.group(1).strip() + test_timing_lines = timing_text.split("\n") + for line in test_timing_lines: + if line.strip(): + # Format is typically: 10.37s call tests/path/to/test.py::TestClass::test_method + parts = line.strip().split() + if len(parts) >= 3: + time_str = parts[0] + test_path = " ".join(parts[2:]) + + # Skip entries with "< 0.05 secs were omitted" or similar + if "secs were omitted" in test_path: + continue + + try: + time_seconds = float(time_str.rstrip("s")) + slowest_tests.append({"test": test_path, "duration": time_seconds}) + except ValueError: + pass + + return { + "tests": tests, + "passed": passed, + "failed": failed, + "skipped": skipped, + "slowest_tests": slowest_tests, + } + except Exception as e: + print(f"Error parsing {file_path}: {e}") + return {"tests": 0, "passed": 0, "failed": 0, "skipped": 0, "slowest_tests": []} + + +def parse_durations_file(file_path): + """Parse a durations file to extract test timing information.""" + slowest_tests = [] + try: + durations_file = file_path.replace("_stats.txt", "_durations.txt") + if os.path.exists(durations_file): + with open(durations_file, "r") as f: + content = f.read() + + # Skip the header line + for line in content.split("\n")[1:]: + if line.strip(): + # Format is typically: 10.37s call tests/path/to/test.py::TestClass::test_method + parts = line.strip().split() + if len(parts) >= 3: + time_str = parts[0] + test_path = " ".join(parts[2:]) + + # Skip entries with "< 0.05 secs were omitted" or similar + if "secs were omitted" in test_path: + continue + + try: + time_seconds = float(time_str.rstrip("s")) + slowest_tests.append({"test": test_path, "duration": time_seconds}) + except ValueError: + # If time_str is not a valid float, it might be a different format + # For example, some pytest formats show "< 0.05s" or similar + if test_path.startswith("<") and "secs were omitted" in test_path: + # Extract the time value from test_path if it's in the format "< 0.05 secs were omitted" + try: + # This handles entries where the time is in the test_path itself + dur_match = re.search(r"(\d+(?:\.\d+)?)", test_path) + if dur_match: + time_seconds = float(dur_match.group(1)) + slowest_tests.append({"test": test_path, "duration": time_seconds}) + except ValueError: + pass + except Exception as e: + print(f"Error parsing durations file {file_path.replace('_stats.txt', '_durations.txt')}: {e}") + + return slowest_tests + + +def parse_failures_file(file_path): + """Parse a failures file to extract failed test details.""" + failures = [] + try: + with open(file_path, "r") as f: + content = f.read() + + # We don't need the base file name anymore as we're getting test paths from summary + + # Check if it's a short stack format + if "============================= FAILURES SHORT STACK =============================" in content: + # First, look for pytest-style failure headers with underscores and clean them up + test_headers = re.findall(r"_{5,}\s+([^_\n]+?)\s+_{5,}", content) + + for test_name in test_headers: + test_name = test_name.strip() + # Make sure it's a valid test name (contains a dot and doesn't look like a number) + if "." in test_name and not test_name.replace(".", "").isdigit(): + # For test names missing the full path, check if we can reconstruct it from failures_line.txt + # This is a best effort - we won't always have the line file available + if not test_name.endswith(".py") and "::" not in test_name and "/" not in test_name: + # Try to look for a corresponding line file + line_file = file_path.replace("_failures_short.txt", "_failures_line.txt") + if os.path.exists(line_file): + try: + with open(line_file, "r") as lf: + line_content = lf.read() + # Look for test name in line file which might have the full path + path_match = re.search( + r"(tests/[\w/]+\.py::[^:]+::" + test_name.split(".")[-1] + ")", + line_content, + ) + if path_match: + test_name = path_match.group(1) + except Exception: + pass # If we can't read the line file, just use what we have + + failures.append( + { + "test": test_name, + "error": "Error occurred", + "original_test_name": test_name, # Keep original for reference + } + ) + + # If we didn't find any pytest-style headers, try other formats + if not failures: + # Look for test names at the beginning of the file (in first few lines) + first_lines = content.split("\n")[:20] # Look at first 20 lines + for line in first_lines: + # Look for test names in various formats + # Format: tests/file.py::TestClass::test_method + path_match = re.search(r"(tests/[\w/]+\.py::[\w\.]+::\w+)", line) + # Format: TestClass.test_method + class_match = re.search(r"([A-Za-z][A-Za-z0-9_]+\.[A-Za-z][A-Za-z0-9_]+)", line) + + if path_match: + test_name = path_match.group(1) + failures.append( + {"test": test_name, "error": "Error occurred", "original_test_name": test_name} + ) + break # Found a full path, stop looking + elif class_match and "test" in line.lower(): + test_name = class_match.group(1) + # Make sure it's likely a test name (contains test in method name) + if "test" in test_name.lower(): + failures.append( + {"test": test_name, "error": "Error occurred", "original_test_name": test_name} + ) + else: + # Standard format - try to extract from standard pytest output + failure_blocks = re.split(r"={70}", content) + + for block in failure_blocks: + if not block.strip(): + continue + + # Look for test paths in the format: path/to/test.py::TestClass::test_method + path_matches = re.findall(r"([\w/]+\.py::[\w\.]+::\w+)", block) + if path_matches: + for test_name in path_matches: + failures.append( + {"test": test_name, "error": "Error occurred", "original_test_name": test_name} + ) + else: + # Try alternative format: TestClass.test_method + class_matches = re.findall(r"([A-Za-z][A-Za-z0-9_]+\.[A-Za-z][A-Za-z0-9_]+)", block) + for test_name in class_matches: + # Filter out things that don't look like test names + if ( + not test_name.startswith(("e.g", "i.e", "etc.")) + and not test_name.isdigit() + and "test" in test_name.lower() + ): + failures.append( + {"test": test_name, "error": "Error occurred", "original_test_name": test_name} + ) + + except Exception as e: + print(f"Error parsing failures in {file_path}: {e}") + + return failures + + +def consolidate_reports(reports_dir): + """Consolidate test reports from multiple test runs, including from subdirectories.""" + # Get all stats files, including those in subdirectories + stats_files = glob.glob(f"{reports_dir}/**/*_stats.txt", recursive=True) + + results = {} + total_stats = {"tests": 0, "passed": 0, "failed": 0, "skipped": 0} + + # Collect all slow tests across all test suites + all_slow_tests = [] + + # Process each stats file and its corresponding failures file + for stats_file in stats_files: + # Extract test suite name from filename (e.g., tests_pipeline_allegro_cuda_stats.txt -> pipeline_allegro_cuda) + base_name = os.path.basename(stats_file).replace("_stats.txt", "") + + # Include parent directory in suite name if it's in a subdirectory + rel_path = os.path.relpath(os.path.dirname(stats_file), reports_dir) + if rel_path and rel_path != ".": + # Remove 'test_reports' suffix from directory name if present + dir_name = os.path.basename(rel_path) + if dir_name.endswith("_test_reports"): + dir_name = dir_name[:-13] # Remove '_test_reports' suffix + base_name = f"{dir_name}/{base_name}" + + # Parse stats + stats = parse_stats_file(stats_file) + + # If no slowest tests found in stats file, try the durations file directly + if not stats.get("slowest_tests"): + stats["slowest_tests"] = parse_durations_file(stats_file) + + # Update total stats + for key in ["tests", "passed", "failed", "skipped"]: + total_stats[key] += stats[key] + + # Collect slowest tests with their suite name + for slow_test in stats.get("slowest_tests", []): + all_slow_tests.append({"test": slow_test["test"], "duration": slow_test["duration"], "suite": base_name}) + + # Parse failures if there are any + failures = [] + if stats["failed"] > 0: + # First try to get test paths from summary_short.txt which has the best format + summary_file = stats_file.replace("_stats.txt", "_summary_short.txt") + if os.path.exists(summary_file): + try: + with open(summary_file, "r") as f: + content = f.read() + # Look for full lines with test path and error message: "FAILED test_path - error_msg" + failed_test_lines = re.findall( + r"FAILED\s+(tests/[\w/]+\.py::[A-Za-z0-9_\.]+::[A-Za-z0-9_]+)(?:\s+-\s+(.+))?", content + ) + + if failed_test_lines: + for match in failed_test_lines: + test_path = match[0] + error_msg = match[1] if len(match) > 1 and match[1] else "No error message" + + failures.append({"test": test_path, "error": error_msg}) + except Exception as e: + print(f"Error parsing summary file: {e}") + + # If no failures found in summary, try other failure files + if not failures: + failure_patterns = ["_failures_short.txt", "_failures.txt", "_failures_line.txt", "_failures_long.txt"] + + for pattern in failure_patterns: + failures_file = stats_file.replace("_stats.txt", pattern) + if os.path.exists(failures_file): + failures = parse_failures_file(failures_file) + if failures: + break + + # No debug output needed + + # Store results for this test suite + results[base_name] = {"stats": stats, "failures": failures} + + # Filter out entries with "secs were omitted" + filtered_slow_tests = [test for test in all_slow_tests if "secs were omitted" not in test["test"]] + + # Sort all slow tests by duration (descending) + filtered_slow_tests.sort(key=lambda x: x["duration"], reverse=True) + + # Get the number of slowest tests to show from environment variable or default to 10 + num_slowest_tests = int(os.environ.get("SHOW_SLOWEST_TESTS", "10")) + top_slowest_tests = filtered_slow_tests[:num_slowest_tests] if filtered_slow_tests else [] + + # Calculate additional duration statistics + total_duration = sum(test["duration"] for test in all_slow_tests) + + # Calculate duration per suite + suite_durations = {} + for test in all_slow_tests: + suite_name = test["suite"] + if suite_name not in suite_durations: + suite_durations[suite_name] = 0 + suite_durations[suite_name] += test["duration"] + + # Removed duration categories + + return { + "total_stats": total_stats, + "test_suites": results, + "slowest_tests": top_slowest_tests, + "duration_stats": {"total_duration": total_duration, "suite_durations": suite_durations}, + } + + +def generate_report(consolidated_data): + """Generate a comprehensive markdown report from consolidated data.""" + report = [] + + # Add report header + report.append("# Diffusers Nightly Test Report") + report.append(f"Generated on: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}\n") + + # Removed comparison section + + # Add summary section + total = consolidated_data["total_stats"] + report.append("## Summary") + + # Get duration stats if available + duration_stats = consolidated_data.get("duration_stats", {}) + total_duration = duration_stats.get("total_duration", 0) + + summary_table = [ + ["Total Tests", total["tests"]], + ["Passed", total["passed"]], + ["Failed", total["failed"]], + ["Skipped", total["skipped"]], + ["Success Rate", f"{(total['passed'] / total['tests'] * 100):.2f}%" if total["tests"] > 0 else "N/A"], + ["Total Duration", f"{total_duration:.2f}s" if total_duration else "N/A"], + ] + + report.append(tabulate(summary_table, tablefmt="pipe")) + report.append("") + + # Removed duration distribution section + + # Add test suites summary + report.append("## Test Suites") + + # Include duration in test suites table if available + suite_durations = consolidated_data.get("duration_stats", {}).get("suite_durations", {}) + + if suite_durations: + suites_table = [["Test Suite", "Tests", "Passed", "Failed", "Skipped", "Success Rate", "Duration (s)"]] + else: + suites_table = [["Test Suite", "Tests", "Passed", "Failed", "Skipped", "Success Rate"]] + + # Sort test suites by success rate (ascending - least successful first) + sorted_suites = sorted( + consolidated_data["test_suites"].items(), + key=lambda x: (x[1]["stats"]["passed"] / x[1]["stats"]["tests"] * 100) if x[1]["stats"]["tests"] > 0 else 0, + reverse=False, + ) + + for suite_name, suite_data in sorted_suites: + stats = suite_data["stats"] + success_rate = f"{(stats['passed'] / stats['tests'] * 100):.2f}%" if stats["tests"] > 0 else "N/A" + + if suite_durations: + duration = suite_durations.get(suite_name, 0) + suites_table.append( + [ + suite_name, + stats["tests"], + stats["passed"], + stats["failed"], + stats["skipped"], + success_rate, + f"{duration:.2f}", + ] + ) + else: + suites_table.append( + [suite_name, stats["tests"], stats["passed"], stats["failed"], stats["skipped"], success_rate] + ) + + report.append(tabulate(suites_table, headers="firstrow", tablefmt="pipe")) + report.append("") + + # Add slowest tests section + slowest_tests = consolidated_data.get("slowest_tests", []) + if slowest_tests: + report.append("## Slowest Tests") + + slowest_table = [["Rank", "Test", "Duration (s)", "Test Suite"]] + for i, test in enumerate(slowest_tests, 1): + # Skip entries that don't contain actual test names + if "< 0.05 secs were omitted" in test["test"]: + continue + slowest_table.append([i, test["test"], f"{test['duration']:.2f}", test["suite"]]) + + report.append(tabulate(slowest_table, headers="firstrow", tablefmt="pipe")) + report.append("") + + # Add failures section if there are any + failed_suites = [s for s in sorted_suites if s[1]["stats"]["failed"] > 0] + + if failed_suites: + report.append("## Failures") + + # Group failures by module for cleaner organization + failures_by_module = {} + + for suite_name, suite_data in failed_suites: + # Extract failures data for this suite + for failure in suite_data.get("failures", []): + test_name = failure["test"] + + # If test name doesn't look like a full path, try to reconstruct it + if not ("/" in test_name or "::" in test_name) and "." in test_name: + # For simple 'TestClass.test_method' format, try to get full path from suite name + # Form: tests__cuda -> tests//test_.py::TestClass::test_method + if suite_name.startswith("tests_") and "_cuda" in suite_name: + # Extract component name from suite + component = suite_name.replace("tests_", "").replace("_cuda", "") + if "." in test_name: + class_name, method_name = test_name.split(".", 1) + possible_path = f"tests/{component}/test_{component}.py::{class_name}::{method_name}" + # Use this constructed path if it seems reasonable + if "test_" in method_name: + test_name = possible_path + + # Extract module name from test name + if "::" in test_name: + # For path/file.py::TestClass::test_method format + parts = test_name.split("::") + module_name = parts[-2] if len(parts) >= 2 else "Other" # TestClass + elif "." in test_name: + # For TestClass.test_method format + parts = test_name.split(".") + module_name = parts[0] # TestClass + else: + module_name = "Other" + + # Skip module names that don't look like class/module names + if ( + module_name.startswith(("e.g", "i.e", "etc")) + or module_name.replace(".", "").isdigit() + or len(module_name) < 3 + ): + module_name = "Other" + + # Add to the module group + if module_name not in failures_by_module: + failures_by_module[module_name] = [] + + # Prepend the suite name if the test name doesn't already have a full path + if "/" not in test_name and suite_name not in test_name: + full_test_name = f"{suite_name}::{test_name}" + else: + full_test_name = test_name + + # Add this failure to the module group + failures_by_module[module_name].append( + {"test": full_test_name, "original_test": test_name, "error": failure["error"]} + ) + + # Create a list of failing tests for each module + if failures_by_module: + for module_name, failures in sorted(failures_by_module.items()): + report.append(f"### {module_name}") + + # Put all failed tests in a single code block + report.append("```") + for failure in failures: + # Show test path and error message if available + if failure.get("error") and failure["error"] != "No error message": + report.append(f"{failure['test']} - {failure['error']}") + else: + report.append(failure["test"]) + report.append("```") + + report.append("") # Add space between modules + else: + report.append("*No detailed failure information available*") + report.append("") + + return "\n".join(report) + + +def create_test_groups_table(test_groups, total_tests, total_success_rate): + """Create a table-like format for test groups showing total tests and success rate.""" + if not test_groups: + return None + + # Sort by total test count (descending) + sorted_groups = sorted(test_groups.items(), key=lambda x: x[1]["total"], reverse=True) + + # Create table lines + table_lines = ["```"] + table_lines.append("Test Results Summary") + table_lines.append("-------------------") + table_lines.append(f"Total Tests: {total_tests:,}") + table_lines.append(f"Success Rate: {total_success_rate}") + table_lines.append("") + table_lines.append("Category | Total Tests | Failed | Success Rate") + table_lines.append("------------------- | ----------- | ------ | ------------") + + # Add rows + for category, stats in sorted_groups: + # Pad category name to fixed width (19 chars) + padded_cat = category[:19].ljust(19) # Truncate if too long + # Right-align counts + padded_total = str(stats["total"]).rjust(11) + padded_failed = str(stats["failed"]).rjust(6) + # Calculate and format success rate + if stats["total"] > 0: + cat_success_rate = f"{((stats['total'] - stats['failed']) / stats['total'] * 100):.1f}%" + else: + cat_success_rate = "N/A" + padded_rate = cat_success_rate.rjust(12) + table_lines.append(f"{padded_cat} | {padded_total} | {padded_failed} | {padded_rate}") + + table_lines.append("```") + + total_failures = sum(stats["failed"] for stats in test_groups.values()) + return ( + f"*Test Groups Summary ({total_failures} {'failure' if total_failures == 1 else 'failures'}):*\n" + + "\n".join(table_lines) + ) + + +def create_slack_payload(consolidated_data): + """Create a concise Slack message payload from consolidated data.""" + total = consolidated_data["total_stats"] + success_rate = f"{(total['passed'] / total['tests'] * 100):.2f}%" if total["tests"] > 0 else "N/A" + + # Determine emoji based on success rate + if total["failed"] == 0: + emoji = "✅" + elif total["failed"] / total["tests"] < 0.1: + emoji = "⚠️" + else: + emoji = "❌" + + # Create a more compact summary section + summary = f"{emoji} *Diffusers Nightly Tests:* {success_rate} success ({total['passed']}/{total['tests']} tests" + if total["skipped"] > 0: + summary += f", {total['skipped']} skipped" + summary += ")" + + # Create the test suites table in markdown format + # Build the markdown table with proper alignment + table_lines = [] + table_lines.append("```") + + # Sort test suites by success rate (ascending - least successful first) + sorted_suites = sorted( + consolidated_data["test_suites"].items(), + key=lambda x: (x[1]["stats"]["passed"] / x[1]["stats"]["tests"] * 100) if x[1]["stats"]["tests"] > 0 else 0, + reverse=False, + ) + + # Calculate max widths for proper alignment + max_suite_name_len = max(len(suite_name) for suite_name, _ in sorted_suites) if sorted_suites else 10 + max_suite_name_len = max(max_suite_name_len, len("Test Suite")) # Ensure header fits + + # Create header with proper spacing (only Tests, Failed, Success Rate) + header = f"| {'Test Suite'.ljust(max_suite_name_len)} | {'Tests'.rjust(6)} | {'Failed'.rjust(6)} | {'Success Rate'.ljust(12)} |" + separator = f"|:{'-' * max_suite_name_len}|{'-' * 7}:|{'-' * 7}:|:{'-' * 11}|" + + table_lines.append(header) + table_lines.append(separator) + + # Add data rows with proper alignment + for suite_name, suite_data in sorted_suites: + stats = suite_data["stats"] + suite_success_rate = f"{(stats['passed'] / stats['tests'] * 100):.2f}%" if stats["tests"] > 0 else "N/A" + + row = f"| {suite_name.ljust(max_suite_name_len)} | {str(stats['tests']).rjust(6)} | {str(stats['failed']).rjust(6)} | {suite_success_rate.ljust(12)} |" + + table_lines.append(row) + + table_lines.append("```") + + # Create the Slack payload with character limit enforcement + payload = [ + {"type": "section", "text": {"type": "mrkdwn", "text": summary}}, + {"type": "section", "text": {"type": "mrkdwn", "text": "\n".join(table_lines)}}, + ] + + # Add action button + if os.environ.get("GITHUB_RUN_ID"): + run_id = os.environ["GITHUB_RUN_ID"] + payload.append( + { + "type": "section", + "text": { + "type": "mrkdwn", + "text": f"**", + }, + } + ) + + # Add date in more compact form + payload.append( + { + "type": "context", + "elements": [ + { + "type": "plain_text", + "text": f"Results for {date.today()}", + }, + ], + } + ) + + # Enforce 3001 character limit + payload_text = str(payload) + if len(payload_text) > MAX_LEN_MESSAGE: + # Truncate table if payload is too long + # Remove rows from the bottom until under limit + original_table_lines = table_lines[:] + while len(str(payload)) > MAX_LEN_MESSAGE and len(table_lines) > 3: # Keep at least header and separator + # Remove the last data row (but keep ``` at the end) + table_lines.pop(-2) # Remove second to last (last is the closing ```) + + # Recreate payload with truncated table + payload[1] = {"type": "section", "text": {"type": "mrkdwn", "text": "\n".join(table_lines)}} + + # Add note if we had to truncate + if len(table_lines) < len(original_table_lines): + truncated_count = len(original_table_lines) - len(table_lines) + table_lines.insert(-1, f"... {truncated_count} more test suites (truncated due to message limit)") + payload[1] = {"type": "section", "text": {"type": "mrkdwn", "text": "\n".join(table_lines)}} + + return payload + + +def create_failed_tests_by_suite_ordered(consolidated_data): + """Group failed tests by test suite, ordered by success rate (ascending).""" + # Sort test suites by success rate (ascending - least successful first) + sorted_suites = sorted( + consolidated_data["test_suites"].items(), + key=lambda x: (x[1]["stats"]["passed"] / x[1]["stats"]["tests"] * 100) if x[1]["stats"]["tests"] > 0 else 0, + reverse=False, + ) + + failed_suite_tests = [] + + # Process suites in order of success rate + for suite_name, suite_data in sorted_suites: + if suite_data["stats"]["failed"] > 0: + suite_failures = [] + + for failure in suite_data.get("failures", []): + test_name = failure["test"] + + # Try to reconstruct full path if partial + if "::" in test_name and "/" in test_name: + full_test_name = test_name + elif "::" in test_name or "." in test_name: + if "/" not in test_name and suite_name not in test_name: + full_test_name = f"{suite_name}::{test_name}" + else: + full_test_name = test_name + else: + full_test_name = f"{suite_name}::{test_name}" + + suite_failures.append(full_test_name) + + # Sort and deduplicate tests within the suite + suite_failures = sorted(set(suite_failures)) + + if suite_failures: + failed_suite_tests.append( + { + "suite_name": suite_name, + "tests": suite_failures, + "success_rate": (suite_data["stats"]["passed"] / suite_data["stats"]["tests"] * 100) + if suite_data["stats"]["tests"] > 0 + else 0, + } + ) + + return failed_suite_tests + + +def main(args): + # Make sure reports directory exists + if not os.path.isdir(args.reports_dir): + print(f"Error: Reports directory '{args.reports_dir}' does not exist.") + return + + # Consolidate reports + consolidated_data = consolidate_reports(args.reports_dir) + + # Check if we found any test results + if consolidated_data["total_stats"]["tests"] == 0: + print(f"Warning: No test results found in '{args.reports_dir}' or its subdirectories.") + + # Generate markdown report + report = generate_report(consolidated_data) + + # Save report to file if specified + if args.output_file: + # Create parent directories if they don't exist + output_dir = os.path.dirname(args.output_file) + if output_dir and not os.path.exists(output_dir): + os.makedirs(output_dir) + + with open(args.output_file, "w") as f: + f.write(report) + + # Only print the report when saving to file + print(report) + + # Send to Slack if token is available (optional, can be disabled) + slack_token = os.environ.get("SLACK_API_TOKEN") + if slack_token and args.slack_channel_name: + payload = create_slack_payload(consolidated_data) + + try: + client = WebClient(token=slack_token) + # Send main message + response = client.chat_postMessage(channel=f"#{args.slack_channel_name}", blocks=payload) + print(f"Report sent to Slack channel: {args.slack_channel_name}") + + # Send failed tests as separate threaded replies grouped by test suite (ordered by success rate) + total = consolidated_data["total_stats"] + if total["failed"] > 0: + failed_suites = create_failed_tests_by_suite_ordered(consolidated_data) + for suite_info in failed_suites: + suite_name = suite_info["suite_name"] + suite_tests = suite_info["tests"] + success_rate = suite_info["success_rate"] + message_text = ( + f"**{suite_name}** (Success Rate: {success_rate:.2f}%)\n```\n" + + "\n".join(suite_tests) + + "\n```" + ) + client.chat_postMessage( + channel=f"#{args.slack_channel_name}", + thread_ts=response["ts"], # Reply in thread + text=message_text, # Use text instead of blocks for markdown + ) + print(f"Failed tests details sent as {len(failed_suites)} thread replies") + except Exception as e: + print(f"Error sending report to Slack: {e}") + + +if __name__ == "__main__": + args = parser.parse_args() + main(args) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/custom_init_isort.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/custom_init_isort.py new file mode 100644 index 0000000000000000000000000000000000000000..cc3bccb9bd63a0fbd28105f5d946024c1637b303 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/custom_init_isort.py @@ -0,0 +1,330 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Utility that sorts the imports in the custom inits of Diffusers. Diffusers uses init files that delay the +import of an object to when it's actually needed. This is to avoid the main init importing all models, which would +make the line `import transformers` very slow when the user has all optional dependencies installed. The inits with +delayed imports have two halves: one defining a dictionary `_import_structure` which maps modules to the name of the +objects in each module, and one in `TYPE_CHECKING` which looks like a normal init for type-checkers. `isort` or `ruff` +properly sort the second half which looks like traditionl imports, the goal of this script is to sort the first half. + +Use from the root of the repo with: + +```bash +python utils/custom_init_isort.py +``` + +which will auto-sort the imports (used in `make style`). + +For a check only (as used in `make quality`) run: + +```bash +python utils/custom_init_isort.py --check_only +``` +""" + +import argparse +import os +import re +from typing import Any, Callable, List, Optional + + +# Path is defined with the intent you should run this script from the root of the repo. +PATH_TO_TRANSFORMERS = "src/diffusers" + +# Pattern that looks at the indentation in a line. +_re_indent = re.compile(r"^(\s*)\S") +# Pattern that matches `"key":" and puts `key` in group 0. +_re_direct_key = re.compile(r'^\s*"([^"]+)":') +# Pattern that matches `_import_structure["key"]` and puts `key` in group 0. +_re_indirect_key = re.compile(r'^\s*_import_structure\["([^"]+)"\]') +# Pattern that matches `"key",` and puts `key` in group 0. +_re_strip_line = re.compile(r'^\s*"([^"]+)",\s*$') +# Pattern that matches any `[stuff]` and puts `stuff` in group 0. +_re_bracket_content = re.compile(r"\[([^\]]+)\]") + + +def get_indent(line: str) -> str: + """Returns the indent in given line (as string).""" + search = _re_indent.search(line) + return "" if search is None else search.groups()[0] + + +def split_code_in_indented_blocks( + code: str, indent_level: str = "", start_prompt: Optional[str] = None, end_prompt: Optional[str] = None +) -> List[str]: + """ + Split some code into its indented blocks, starting at a given level. + + Args: + code (`str`): The code to split. + indent_level (`str`): The indent level (as string) to use for identifying the blocks to split. + start_prompt (`str`, *optional*): If provided, only starts splitting at the line where this text is. + end_prompt (`str`, *optional*): If provided, stops splitting at a line where this text is. + + Warning: + The text before `start_prompt` or after `end_prompt` (if provided) is not ignored, just not split. The input `code` + can thus be retrieved by joining the result. + + Returns: + `List[str]`: The list of blocks. + """ + # Let's split the code into lines and move to start_index. + index = 0 + lines = code.split("\n") + if start_prompt is not None: + while not lines[index].startswith(start_prompt): + index += 1 + blocks = ["\n".join(lines[:index])] + else: + blocks = [] + + # This variable contains the block treated at a given time. + current_block = [lines[index]] + index += 1 + # We split into blocks until we get to the `end_prompt` (or the end of the file). + while index < len(lines) and (end_prompt is None or not lines[index].startswith(end_prompt)): + # We have a non-empty line with the proper indent -> start of a new block + if len(lines[index]) > 0 and get_indent(lines[index]) == indent_level: + # Store the current block in the result and rest. There are two cases: the line is part of the block (like + # a closing parenthesis) or not. + if len(current_block) > 0 and get_indent(current_block[-1]).startswith(indent_level + " "): + # Line is part of the current block + current_block.append(lines[index]) + blocks.append("\n".join(current_block)) + if index < len(lines) - 1: + current_block = [lines[index + 1]] + index += 1 + else: + current_block = [] + else: + # Line is not part of the current block + blocks.append("\n".join(current_block)) + current_block = [lines[index]] + else: + # Just add the line to the current block + current_block.append(lines[index]) + index += 1 + + # Adds current block if it's nonempty. + if len(current_block) > 0: + blocks.append("\n".join(current_block)) + + # Add final block after end_prompt if provided. + if end_prompt is not None and index < len(lines): + blocks.append("\n".join(lines[index:])) + + return blocks + + +def ignore_underscore_and_lowercase(key: Callable[[Any], str]) -> Callable[[Any], str]: + """ + Wraps a key function (as used in a sort) to lowercase and ignore underscores. + """ + + def _inner(x): + return key(x).lower().replace("_", "") + + return _inner + + +def sort_objects(objects: List[Any], key: Optional[Callable[[Any], str]] = None) -> List[Any]: + """ + Sort a list of objects following the rules of isort (all uppercased first, camel-cased second and lower-cased + last). + + Args: + objects (`List[Any]`): + The list of objects to sort. + key (`Callable[[Any], str]`, *optional*): + A function taking an object as input and returning a string, used to sort them by alphabetical order. + If not provided, will default to noop (so a `key` must be provided if the `objects` are not of type string). + + Returns: + `List[Any]`: The sorted list with the same elements as in the inputs + """ + + # If no key is provided, we use a noop. + def noop(x): + return x + + if key is None: + key = noop + # Constants are all uppercase, they go first. + constants = [obj for obj in objects if key(obj).isupper()] + # Classes are not all uppercase but start with a capital, they go second. + classes = [obj for obj in objects if key(obj)[0].isupper() and not key(obj).isupper()] + # Functions begin with a lowercase, they go last. + functions = [obj for obj in objects if not key(obj)[0].isupper()] + + # Then we sort each group. + key1 = ignore_underscore_and_lowercase(key) + return sorted(constants, key=key1) + sorted(classes, key=key1) + sorted(functions, key=key1) + + +def sort_objects_in_import(import_statement: str) -> str: + """ + Sorts the imports in a single import statement. + + Args: + import_statement (`str`): The import statement in which to sort the imports. + + Returns: + `str`: The same as the input, but with objects properly sorted. + """ + + # This inner function sort imports between [ ]. + def _replace(match): + imports = match.groups()[0] + # If there is one import only, nothing to do. + if "," not in imports: + return f"[{imports}]" + keys = [part.strip().replace('"', "") for part in imports.split(",")] + # We will have a final empty element if the line finished with a comma. + if len(keys[-1]) == 0: + keys = keys[:-1] + return "[" + ", ".join([f'"{k}"' for k in sort_objects(keys)]) + "]" + + lines = import_statement.split("\n") + if len(lines) > 3: + # Here we have to sort internal imports that are on several lines (one per name): + # key: [ + # "object1", + # "object2", + # ... + # ] + + # We may have to ignore one or two lines on each side. + idx = 2 if lines[1].strip() == "[" else 1 + keys_to_sort = [(i, _re_strip_line.search(line).groups()[0]) for i, line in enumerate(lines[idx:-idx])] + sorted_indices = sort_objects(keys_to_sort, key=lambda x: x[1]) + sorted_lines = [lines[x[0] + idx] for x in sorted_indices] + return "\n".join(lines[:idx] + sorted_lines + lines[-idx:]) + elif len(lines) == 3: + # Here we have to sort internal imports that are on one separate line: + # key: [ + # "object1", "object2", ... + # ] + if _re_bracket_content.search(lines[1]) is not None: + lines[1] = _re_bracket_content.sub(_replace, lines[1]) + else: + keys = [part.strip().replace('"', "") for part in lines[1].split(",")] + # We will have a final empty element if the line finished with a comma. + if len(keys[-1]) == 0: + keys = keys[:-1] + lines[1] = get_indent(lines[1]) + ", ".join([f'"{k}"' for k in sort_objects(keys)]) + return "\n".join(lines) + else: + # Finally we have to deal with imports fitting on one line + import_statement = _re_bracket_content.sub(_replace, import_statement) + return import_statement + + +def sort_imports(file: str, check_only: bool = True): + """ + Sort the imports defined in the `_import_structure` of a given init. + + Args: + file (`str`): The path to the init to check/fix. + check_only (`bool`, *optional*, defaults to `True`): Whether or not to just check (and not auto-fix) the init. + """ + with open(file, encoding="utf-8") as f: + code = f.read() + + # If the file is not a custom init, there is nothing to do. + if "_import_structure" not in code: + return + + # Blocks of indent level 0 + main_blocks = split_code_in_indented_blocks( + code, start_prompt="_import_structure = {", end_prompt="if TYPE_CHECKING:" + ) + + # We ignore block 0 (everything until start_prompt) and the last block (everything after end_prompt). + for block_idx in range(1, len(main_blocks) - 1): + # Check if the block contains some `_import_structure`s thingy to sort. + block = main_blocks[block_idx] + block_lines = block.split("\n") + + # Get to the start of the imports. + line_idx = 0 + while line_idx < len(block_lines) and "_import_structure" not in block_lines[line_idx]: + # Skip dummy import blocks + if "import dummy" in block_lines[line_idx]: + line_idx = len(block_lines) + else: + line_idx += 1 + if line_idx >= len(block_lines): + continue + + # Ignore beginning and last line: they don't contain anything. + internal_block_code = "\n".join(block_lines[line_idx:-1]) + indent = get_indent(block_lines[1]) + # Slit the internal block into blocks of indent level 1. + internal_blocks = split_code_in_indented_blocks(internal_block_code, indent_level=indent) + # We have two categories of import key: list or _import_structure[key].append/extend + pattern = _re_direct_key if "_import_structure = {" in block_lines[0] else _re_indirect_key + # Grab the keys, but there is a trap: some lines are empty or just comments. + keys = [(pattern.search(b).groups()[0] if pattern.search(b) is not None else None) for b in internal_blocks] + # We only sort the lines with a key. + keys_to_sort = [(i, key) for i, key in enumerate(keys) if key is not None] + sorted_indices = [x[0] for x in sorted(keys_to_sort, key=lambda x: x[1])] + + # We reorder the blocks by leaving empty lines/comments as they were and reorder the rest. + count = 0 + reordered_blocks = [] + for i in range(len(internal_blocks)): + if keys[i] is None: + reordered_blocks.append(internal_blocks[i]) + else: + block = sort_objects_in_import(internal_blocks[sorted_indices[count]]) + reordered_blocks.append(block) + count += 1 + + # And we put our main block back together with its first and last line. + main_blocks[block_idx] = "\n".join(block_lines[:line_idx] + reordered_blocks + [block_lines[-1]]) + + if code != "\n".join(main_blocks): + if check_only: + return True + else: + print(f"Overwriting {file}.") + with open(file, "w", encoding="utf-8") as f: + f.write("\n".join(main_blocks)) + + +def sort_imports_in_all_inits(check_only=True): + """ + Sort the imports defined in the `_import_structure` of all inits in the repo. + + Args: + check_only (`bool`, *optional*, defaults to `True`): Whether or not to just check (and not auto-fix) the init. + """ + failures = [] + for root, _, files in os.walk(PATH_TO_TRANSFORMERS): + if "__init__.py" in files: + result = sort_imports(os.path.join(root, "__init__.py"), check_only=check_only) + if result: + failures = [os.path.join(root, "__init__.py")] + if len(failures) > 0: + raise ValueError(f"Would overwrite {len(failures)} files, run `make style`.") + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--check_only", action="store_true", help="Whether to only check or fix style.") + args = parser.parse_args() + + sort_imports_in_all_inits(check_only=args.check_only) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/extract_tests_from_mixin.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/extract_tests_from_mixin.py new file mode 100644 index 0000000000000000000000000000000000000000..c8b65b96ee16071042d93b66071367acad658d9c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/extract_tests_from_mixin.py @@ -0,0 +1,61 @@ +import argparse +import inspect +import sys +from pathlib import Path +from typing import List, Type + + +root_dir = Path(__file__).parent.parent.absolute() +sys.path.insert(0, str(root_dir)) + +parser = argparse.ArgumentParser() +parser.add_argument("--type", type=str, default=None) +args = parser.parse_args() + + +def get_test_methods_from_class(cls: Type) -> List[str]: + """ + Get all test method names from a given class. + Only returns methods that start with 'test_'. + """ + test_methods = [] + for name, obj in inspect.getmembers(cls): + if name.startswith("test_") and inspect.isfunction(obj): + test_methods.append(name) + return sorted(test_methods) + + +def generate_pytest_pattern(test_methods: List[str]) -> str: + """Generate pytest pattern string for the -k flag.""" + return " or ".join(test_methods) + + +def generate_pattern_for_mixin(mixin_class: Type) -> str: + """ + Generate pytest pattern for a specific mixin class. + """ + if mixin_cls is None: + return "" + test_methods = get_test_methods_from_class(mixin_class) + return generate_pytest_pattern(test_methods) + + +if __name__ == "__main__": + mixin_cls = None + if args.type == "pipeline": + from tests.pipelines.test_pipelines_common import PipelineTesterMixin + + mixin_cls = PipelineTesterMixin + + elif args.type == "models": + from tests.models.test_modeling_common import ModelTesterMixin + + mixin_cls = ModelTesterMixin + + elif args.type == "lora": + from tests.lora.utils import PeftLoraLoaderMixinTests + + mixin_cls = PeftLoraLoaderMixinTests + + pattern = generate_pattern_for_mixin(mixin_cls) + print(pattern) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/fetch_latest_release_branch.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/fetch_latest_release_branch.py new file mode 100644 index 0000000000000000000000000000000000000000..5b0be6253e1b96af3883da916fc06c5522321dcf --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/fetch_latest_release_branch.py @@ -0,0 +1,73 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +import requests +from packaging.version import parse + + +# GitHub repository details +USER = "huggingface" +REPO = "diffusers" + + +def fetch_all_branches(user, repo): + branches = [] # List to store all branches + page = 1 # Start from first page + while True: + # Make a request to the GitHub API for the branches + response = requests.get( + f"https://api.github.com/repos/{user}/{repo}/branches", + params={"page": page}, + timeout=60, + ) + + # Check if the request was successful + if response.status_code == 200: + # Add the branches from the current page to the list + branches.extend([branch["name"] for branch in response.json()]) + + # Check if there is a 'next' link for pagination + if "next" in response.links: + page += 1 # Move to the next page + else: + break # Exit loop if there is no next page + else: + print("Failed to retrieve branches:", response.status_code) + break + + return branches + + +def main(): + # Fetch all branches + branches = fetch_all_branches(USER, REPO) + + # Filter branches. + # print(f"Total branches: {len(branches)}") + filtered_branches = [] + for branch in branches: + if branch.startswith("v") and ("-release" in branch or "-patch" in branch): + filtered_branches.append(branch) + # print(f"Filtered: {branch}") + + sorted_branches = sorted(filtered_branches, key=lambda x: parse(x.split("-")[0][1:]), reverse=True) + latest_branch = sorted_branches[0] + # print(f"Latest branch: {latest_branch}") + return latest_branch + + +if __name__ == "__main__": + print(main()) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/fetch_torch_cuda_pipeline_test_matrix.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/fetch_torch_cuda_pipeline_test_matrix.py new file mode 100644 index 0000000000000000000000000000000000000000..196f35628ac19922671724b85f80d75fc19fb436 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/fetch_torch_cuda_pipeline_test_matrix.py @@ -0,0 +1,99 @@ +import json +import logging +import os +from collections import defaultdict +from pathlib import Path + +from huggingface_hub import HfApi + +import diffusers + + +PATH_TO_REPO = Path(__file__).parent.parent.resolve() +ALWAYS_TEST_PIPELINE_MODULES = [ + "controlnet", + "controlnet_flux", + "controlnet_sd3", + "stable_diffusion", + "stable_diffusion_2", + "stable_diffusion_3", + "stable_diffusion_xl", + "ip_adapters", + "flux", +] +PIPELINE_USAGE_CUTOFF = int(os.getenv("PIPELINE_USAGE_CUTOFF", 50000)) + +logger = logging.getLogger(__name__) +api = HfApi() + + +def filter_pipelines(usage_dict, usage_cutoff=10000): + output = [] + for diffusers_object, usage in usage_dict.items(): + if usage < usage_cutoff: + continue + + is_diffusers_pipeline = hasattr(diffusers.pipelines, diffusers_object) + if not is_diffusers_pipeline: + continue + + output.append(diffusers_object) + + return output + + +def fetch_pipeline_objects(): + models = api.list_models(library="diffusers") + downloads = defaultdict(int) + + for model in models: + is_counted = False + for tag in model.tags: + if tag.startswith("diffusers:"): + is_counted = True + downloads[tag[len("diffusers:") :]] += model.downloads + + if not is_counted: + downloads["other"] += model.downloads + + # Remove 0 downloads + downloads = {k: v for k, v in downloads.items() if v > 0} + pipeline_objects = filter_pipelines(downloads, PIPELINE_USAGE_CUTOFF) + + return pipeline_objects + + +def fetch_pipeline_modules_to_test(): + try: + pipeline_objects = fetch_pipeline_objects() + except Exception as e: + logger.error(e) + raise RuntimeError("Unable to fetch model list from HuggingFace Hub.") + + test_modules = [] + for pipeline_name in pipeline_objects: + module = getattr(diffusers, pipeline_name) + + test_module = module.__module__.split(".")[-2].strip() + test_modules.append(test_module) + + return test_modules + + +def main(): + test_modules = fetch_pipeline_modules_to_test() + test_modules.extend(ALWAYS_TEST_PIPELINE_MODULES) + + # Get unique modules + test_modules = sorted(set(test_modules)) + print(json.dumps(test_modules)) + + save_path = f"{PATH_TO_REPO}/reports" + os.makedirs(save_path, exist_ok=True) + + with open(f"{save_path}/test-pipelines.json", "w") as f: + json.dump({"pipeline_test_modules": test_modules}, f) + + +if __name__ == "__main__": + main() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/get_modified_files.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/get_modified_files.py new file mode 100644 index 0000000000000000000000000000000000000000..e392e50c12d3af270df748987be33ee6c3937901 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/get_modified_files.py @@ -0,0 +1,34 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# this script reports modified .py files under the desired list of top-level sub-dirs passed as a list of arguments, e.g.: +# python ./utils/get_modified_files.py utils src tests examples +# +# it uses git to find the forking point and which files were modified - i.e. files not under git won't be considered +# since the output of this script is fed into Makefile commands it doesn't print a newline after the results + +import re +import subprocess +import sys + + +fork_point_sha = subprocess.check_output("git merge-base main HEAD".split()).decode("utf-8") +modified_files = subprocess.check_output(f"git diff --name-only {fork_point_sha}".split()).decode("utf-8").split() + +joined_dirs = "|".join(sys.argv[1:]) +regex = re.compile(rf"^({joined_dirs}).*?\.py$") + +relevant_modified_files = [x for x in modified_files if regex.match(x)] +print(" ".join(relevant_modified_files), end="") diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/log_reports.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/log_reports.py new file mode 100644 index 0000000000000000000000000000000000000000..5575c9ba8415a73358fe48e3d0ac41b2188691d5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/log_reports.py @@ -0,0 +1,139 @@ +import argparse +import json +import os +from datetime import date +from pathlib import Path + +from slack_sdk import WebClient +from tabulate import tabulate + + +MAX_LEN_MESSAGE = 2900 # slack endpoint has a limit of 3001 characters + +parser = argparse.ArgumentParser() +parser.add_argument("--slack_channel_name", default="diffusers-ci-nightly") + + +def main(slack_channel_name=None): + failed = [] + passed = [] + + group_info = [] + + total_num_failed = 0 + empty_file = False or len(list(Path().glob("*.log"))) == 0 + + total_empty_files = [] + + for log in Path().glob("*.log"): + section_num_failed = 0 + i = 0 + with open(log) as f: + for line in f: + line = json.loads(line) + i += 1 + if line.get("nodeid", "") != "": + test = line["nodeid"] + if line.get("duration", None) is not None: + duration = f"{line['duration']:.4f}" + if line.get("outcome", "") == "failed": + section_num_failed += 1 + failed.append([test, duration, log.name.split("_")[0]]) + total_num_failed += 1 + else: + passed.append([test, duration, log.name.split("_")[0]]) + empty_file = i == 0 + group_info.append([str(log), section_num_failed, failed]) + total_empty_files.append(empty_file) + os.remove(log) + failed = [] + text = ( + "🌞 There were no failures!" + if not any(total_empty_files) + else "Something went wrong there is at least one empty file - please check GH action results." + ) + no_error_payload = { + "type": "section", + "text": { + "type": "plain_text", + "text": text, + "emoji": True, + }, + } + + message = "" + payload = [ + { + "type": "header", + "text": { + "type": "plain_text", + "text": "🤗 Results of the Diffusers scheduled nightly tests.", + }, + }, + ] + if total_num_failed > 0: + for i, (name, num_failed, failed_tests) in enumerate(group_info): + if num_failed > 0: + if num_failed == 1: + message += f"*{name}: {num_failed} failed test*\n" + else: + message += f"*{name}: {num_failed} failed tests*\n" + failed_table = [] + for test in failed_tests: + failed_table.append(test[0].split("::")) + failed_table = tabulate( + failed_table, + headers=["Test Location", "Test Case", "Test Name"], + showindex="always", + tablefmt="grid", + maxcolwidths=[12, 12, 12], + ) + message += "\n```\n" + failed_table + "\n```" + + if total_empty_files[i]: + message += f"\n*{name}: Warning! Empty file - please check the GitHub action job *\n" + print(f"### {message}") + else: + payload.append(no_error_payload) + + if len(message) > MAX_LEN_MESSAGE: + print(f"Truncating long message from {len(message)} to {MAX_LEN_MESSAGE}") + message = message[:MAX_LEN_MESSAGE] + "..." + + if len(message) != 0: + md_report = { + "type": "section", + "text": {"type": "mrkdwn", "text": message}, + } + payload.append(md_report) + action_button = { + "type": "section", + "text": {"type": "mrkdwn", "text": "*For more details:*"}, + "accessory": { + "type": "button", + "text": {"type": "plain_text", "text": "Check Action results", "emoji": True}, + "url": f"https://github.com/huggingface/diffusers/actions/runs/{os.environ['GITHUB_RUN_ID']}", + }, + } + payload.append(action_button) + + date_report = { + "type": "context", + "elements": [ + { + "type": "plain_text", + "text": f"Nightly test results for {date.today()}", + }, + ], + } + payload.append(date_report) + + print(payload) + + client = WebClient(token=os.environ.get("SLACK_API_TOKEN")) + client.chat_postMessage(channel=f"#{slack_channel_name}", text=message, blocks=payload) + + +if __name__ == "__main__": + args = parser.parse_args() + main(args.slack_channel_name) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_benchmarking_status.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_benchmarking_status.py new file mode 100644 index 0000000000000000000000000000000000000000..8a426a15b5edfaa0aeb252d19def51a63c9f189c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_benchmarking_status.py @@ -0,0 +1,56 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +import os + +import requests + + +# Configuration +GITHUB_REPO = "huggingface/diffusers" +GITHUB_RUN_ID = os.getenv("GITHUB_RUN_ID") +SLACK_WEBHOOK_URL = os.getenv("SLACK_WEBHOOK_URL") + + +def main(args): + action_url = f"https://github.com/{GITHUB_REPO}/actions/runs/{GITHUB_RUN_ID}" + if args.status == "success": + hub_path = "https://huggingface.co/datasets/diffusers/benchmarks/blob/main/collated_results.csv" + message = ( + "✅ New benchmark workflow successfully run.\n" + f"🕸️ GitHub Action URL: {action_url}.\n" + f"🤗 Check out the benchmarks here: {hub_path}." + ) + else: + message = ( + "❌ Something wrong happened in the benchmarking workflow.\n" + f"Check out the GitHub Action to know more: {action_url}." + ) + + payload = {"text": message} + response = requests.post(SLACK_WEBHOOK_URL, json=payload) + + if response.status_code == 200: + print("Notification sent to Slack successfully.") + else: + print("Failed to send notification to Slack.") + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--status", type=str, default="success", choices=["success", "failure"]) + args = parser.parse_args() + main(args) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_community_pipelines_mirror.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_community_pipelines_mirror.py new file mode 100644 index 0000000000000000000000000000000000000000..2981f008501f1d437e2df165263c76ddb3939a86 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_community_pipelines_mirror.py @@ -0,0 +1,54 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +import os + +import requests + + +# Configuration +GITHUB_REPO = "huggingface/diffusers" +GITHUB_RUN_ID = os.getenv("GITHUB_RUN_ID") +SLACK_WEBHOOK_URL = os.getenv("SLACK_WEBHOOK_URL") +PATH_IN_REPO = os.getenv("PATH_IN_REPO") + + +def main(args): + action_url = f"https://github.com/{GITHUB_REPO}/actions/runs/{GITHUB_RUN_ID}" + if args.status == "success": + hub_path = f"https://huggingface.co/datasets/diffusers/community-pipelines-mirror/tree/main/{PATH_IN_REPO}" + message = ( + "✅ Community pipelines successfully mirrored.\n" + f"🕸️ GitHub Action URL: {action_url}.\n" + f"🤗 Hub location: {hub_path}." + ) + else: + message = f"❌ Something wrong happened. Check out the GitHub Action to know more: {action_url}." + + payload = {"text": message} + response = requests.post(SLACK_WEBHOOK_URL, json=payload) + + if response.status_code == 200: + print("Notification sent to Slack successfully.") + else: + print("Failed to send notification to Slack.") + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--status", type=str, default="success", choices=["success", "failure"]) + args = parser.parse_args() + main(args) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_slack_about_release.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_slack_about_release.py new file mode 100644 index 0000000000000000000000000000000000000000..a68182f8174cfe286d27b7c5c64c4c1258290703 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/notify_slack_about_release.py @@ -0,0 +1,81 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import os + +import requests + + +# Configuration +LIBRARY_NAME = "diffusers" +GITHUB_REPO = "huggingface/diffusers" +SLACK_WEBHOOK_URL = os.getenv("SLACK_WEBHOOK_URL") + + +def check_pypi_for_latest_release(library_name): + """Check PyPI for the latest release of the library.""" + response = requests.get(f"https://pypi.org/pypi/{library_name}/json", timeout=60) + if response.status_code == 200: + data = response.json() + return data["info"]["version"] + else: + print("Failed to fetch library details from PyPI.") + return None + + +def get_github_release_info(github_repo): + """Fetch the latest release info from GitHub.""" + url = f"https://api.github.com/repos/{github_repo}/releases/latest" + response = requests.get(url, timeout=60) + + if response.status_code == 200: + data = response.json() + return {"tag_name": data["tag_name"], "url": data["html_url"], "release_time": data["published_at"]} + + else: + print("Failed to fetch release info from GitHub.") + return None + + +def notify_slack(webhook_url, library_name, version, release_info): + """Send a notification to a Slack channel.""" + message = ( + f"🚀 New release for {library_name} available: version **{version}** 🎉\n" + f"📜 Release Notes: {release_info['url']}\n" + f"⏱️ Release time: {release_info['release_time']}" + ) + payload = {"text": message} + response = requests.post(webhook_url, json=payload) + + if response.status_code == 200: + print("Notification sent to Slack successfully.") + else: + print("Failed to send notification to Slack.") + + +def main(): + latest_version = check_pypi_for_latest_release(LIBRARY_NAME) + release_info = get_github_release_info(GITHUB_REPO) + parsed_version = release_info["tag_name"].replace("v", "") + + if latest_version and release_info and latest_version == parsed_version: + notify_slack(SLACK_WEBHOOK_URL, LIBRARY_NAME, latest_version, release_info) + else: + print(f"{latest_version=}, {release_info=}, {parsed_version=}") + raise ValueError("There were some problems.") + + +if __name__ == "__main__": + main() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/overwrite_expected_slice.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/overwrite_expected_slice.py new file mode 100644 index 0000000000000000000000000000000000000000..723c1c98fc21321d9fa86b0d7c2024576eaff3cc --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/overwrite_expected_slice.py @@ -0,0 +1,90 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +import argparse +from collections import defaultdict + + +def overwrite_file(file, class_name, test_name, correct_line, done_test): + _id = f"{file}_{class_name}_{test_name}" + done_test[_id] += 1 + + with open(file, "r") as f: + lines = f.readlines() + + class_regex = f"class {class_name}(" + test_regex = f"{4 * ' '}def {test_name}(" + line_begin_regex = f"{8 * ' '}{correct_line.split()[0]}" + another_line_begin_regex = f"{16 * ' '}{correct_line.split()[0]}" + in_class = False + in_func = False + in_line = False + insert_line = False + count = 0 + spaces = 0 + + new_lines = [] + for line in lines: + if line.startswith(class_regex): + in_class = True + elif in_class and line.startswith(test_regex): + in_func = True + elif in_class and in_func and (line.startswith(line_begin_regex) or line.startswith(another_line_begin_regex)): + spaces = len(line.split(correct_line.split()[0])[0]) + count += 1 + + if count == done_test[_id]: + in_line = True + + if in_class and in_func and in_line: + if ")" not in line: + continue + else: + insert_line = True + + if in_class and in_func and in_line and insert_line: + new_lines.append(f"{spaces * ' '}{correct_line}") + in_class = in_func = in_line = insert_line = False + else: + new_lines.append(line) + + with open(file, "w") as f: + for line in new_lines: + f.write(line) + + +def main(correct, fail=None): + if fail is not None: + with open(fail, "r") as f: + test_failures = {l.strip() for l in f.readlines()} + else: + test_failures = None + + with open(correct, "r") as f: + correct_lines = f.readlines() + + done_tests = defaultdict(int) + for line in correct_lines: + file, class_name, test_name, correct_line = line.split("::") + if test_failures is None or "::".join([file, class_name, test_name]) in test_failures: + overwrite_file(file, class_name, test_name, correct_line, done_tests) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--correct_filename", help="filename of tests with expected result") + parser.add_argument("--fail_filename", help="filename of test failures", type=str, default=None) + args = parser.parse_args() + + main(args.correct_filename, args.fail_filename) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/print_env.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/print_env.py new file mode 100644 index 0000000000000000000000000000000000000000..2fe0777daf7dd266f59ef2c1aaa321d502dd13fe --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/print_env.py @@ -0,0 +1,73 @@ +#!/usr/bin/env python3 + +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# this script dumps information about the environment + +import os +import platform +import sys + + +os.environ["TF_CPP_MIN_LOG_LEVEL"] = "3" + +print("Python version:", sys.version) + +print("OS platform:", platform.platform()) +print("OS architecture:", platform.machine()) +try: + import psutil + + vm = psutil.virtual_memory() + total_gb = vm.total / (1024**3) + available_gb = vm.available / (1024**3) + print(f"Total RAM: {total_gb:.2f} GB") + print(f"Available RAM: {available_gb:.2f} GB") +except ImportError: + pass + +try: + import torch + + print("Torch version:", torch.__version__) + print("Cuda available:", torch.cuda.is_available()) + if torch.cuda.is_available(): + print("Cuda version:", torch.version.cuda) + print("CuDNN version:", torch.backends.cudnn.version()) + print("Number of GPUs available:", torch.cuda.device_count()) + device_properties = torch.cuda.get_device_properties(0) + total_memory = device_properties.total_memory / (1024**3) + print(f"CUDA memory: {total_memory} GB") + + print("XPU available:", hasattr(torch, "xpu") and torch.xpu.is_available()) + if hasattr(torch, "xpu") and torch.xpu.is_available(): + print("XPU model:", torch.xpu.get_device_properties(0).name) + print("XPU compiler version:", torch.version.xpu) + print("Number of XPUs available:", torch.xpu.device_count()) + device_properties = torch.xpu.get_device_properties(0) + total_memory = device_properties.total_memory / (1024**3) + print(f"XPU memory: {total_memory} GB") + + +except ImportError: + print("Torch version:", None) + +try: + import transformers + + print("transformers version:", transformers.__version__) +except ImportError: + print("transformers version:", None) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/release.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/release.py new file mode 100644 index 0000000000000000000000000000000000000000..a0800b99fbebd9d2956b64fd92d93490e36f9a41 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/release.py @@ -0,0 +1,162 @@ +# coding=utf-8 +# Copyright 2021 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +import os +import re + +import packaging.version + + +PATH_TO_EXAMPLES = "examples/" +REPLACE_PATTERNS = { + "examples": (re.compile(r'^check_min_version\("[^"]+"\)\s*$', re.MULTILINE), 'check_min_version("VERSION")\n'), + "init": (re.compile(r'^__version__\s+=\s+"([^"]+)"\s*$', re.MULTILINE), '__version__ = "VERSION"\n'), + "setup": (re.compile(r'^(\s*)version\s*=\s*"[^"]+",', re.MULTILINE), r'\1version="VERSION",'), + "doc": (re.compile(r'^(\s*)release\s*=\s*"[^"]+"$', re.MULTILINE), 'release = "VERSION"\n'), +} +REPLACE_FILES = { + "init": "src/diffusers/__init__.py", + "setup": "setup.py", +} +README_FILE = "README.md" + + +def update_version_in_file(fname, version, pattern): + """Update the version in one file using a specific pattern.""" + with open(fname, "r", encoding="utf-8", newline="\n") as f: + code = f.read() + re_pattern, replace = REPLACE_PATTERNS[pattern] + replace = replace.replace("VERSION", version) + code = re_pattern.sub(replace, code) + with open(fname, "w", encoding="utf-8", newline="\n") as f: + f.write(code) + + +def update_version_in_examples(version): + """Update the version in all examples files.""" + for folder, directories, fnames in os.walk(PATH_TO_EXAMPLES): + # Removing some of the folders with non-actively maintained examples from the walk + if "research_projects" in directories: + directories.remove("research_projects") + if "legacy" in directories: + directories.remove("legacy") + for fname in fnames: + if fname.endswith(".py"): + update_version_in_file(os.path.join(folder, fname), version, pattern="examples") + + +def global_version_update(version, patch=False): + """Update the version in all needed files.""" + for pattern, fname in REPLACE_FILES.items(): + update_version_in_file(fname, version, pattern) + if not patch: + update_version_in_examples(version) + + +def clean_main_ref_in_model_list(): + """Replace the links from main doc tp stable doc in the model list of the README.""" + # If the introduction or the conclusion of the list change, the prompts may need to be updated. + _start_prompt = "🤗 Transformers currently provides the following architectures" + _end_prompt = "1. Want to contribute a new model?" + with open(README_FILE, "r", encoding="utf-8", newline="\n") as f: + lines = f.readlines() + + # Find the start of the list. + start_index = 0 + while not lines[start_index].startswith(_start_prompt): + start_index += 1 + start_index += 1 + + index = start_index + # Update the lines in the model list. + while not lines[index].startswith(_end_prompt): + if lines[index].startswith("1."): + lines[index] = lines[index].replace( + "https://huggingface.co/docs/diffusers/main/model_doc", + "https://huggingface.co/docs/diffusers/model_doc", + ) + index += 1 + + with open(README_FILE, "w", encoding="utf-8", newline="\n") as f: + f.writelines(lines) + + +def get_version(): + """Reads the current version in the __init__.""" + with open(REPLACE_FILES["init"], "r") as f: + code = f.read() + default_version = REPLACE_PATTERNS["init"][0].search(code).groups()[0] + return packaging.version.parse(default_version) + + +def pre_release_work(patch=False): + """Do all the necessary pre-release steps.""" + # First let's get the default version: base version if we are in dev, bump minor otherwise. + default_version = get_version() + if patch and default_version.is_devrelease: + raise ValueError("Can't create a patch version from the dev branch, checkout a released version!") + if default_version.is_devrelease: + default_version = default_version.base_version + elif patch: + default_version = f"{default_version.major}.{default_version.minor}.{default_version.micro + 1}" + else: + default_version = f"{default_version.major}.{default_version.minor + 1}.0" + + # Now let's ask nicely if that's the right one. + version = input(f"Which version are you releasing? [{default_version}]") + if len(version) == 0: + version = default_version + + print(f"Updating version to {version}.") + global_version_update(version, patch=patch) + + +# if not patch: +# print("Cleaning main README, don't forget to run `make fix-copies`.") +# clean_main_ref_in_model_list() + + +def post_release_work(): + """Do all the necessary post-release steps.""" + # First let's get the current version + current_version = get_version() + dev_version = f"{current_version.major}.{current_version.minor + 1}.0.dev0" + current_version = current_version.base_version + + # Check with the user we got that right. + version = input(f"Which version are we developing now? [{dev_version}]") + if len(version) == 0: + version = dev_version + + print(f"Updating version to {version}.") + global_version_update(version) + + +# print("Cleaning main README, don't forget to run `make fix-copies`.") +# clean_main_ref_in_model_list() + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--post_release", action="store_true", help="Whether this is pre or post release.") + parser.add_argument("--patch", action="store_true", help="Whether or not this is a patch release.") + args = parser.parse_args() + if not args.post_release: + pre_release_work(patch=args.patch) + elif args.patch: + print("Nothing to do after a patch :-)") + else: + post_release_work() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/stale.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/stale.py new file mode 100644 index 0000000000000000000000000000000000000000..b92fb83ceb4cd531f86edc590f4e22c674787503 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/stale.py @@ -0,0 +1,69 @@ +# Copyright 2025 The HuggingFace Team, the AllenNLP library authors. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Script to close stale issue. Taken in part from the AllenNLP repository. +https://github.com/allenai/allennlp. +""" + +import os +from datetime import datetime as dt +from datetime import timezone + +from github import Github + + +LABELS_TO_EXEMPT = [ + "close-to-merge", + "good first issue", + "good second issue", + "good difficult issue", + "enhancement", + "new pipeline/model", + "new scheduler", + "wip", +] + + +def main(): + g = Github(os.environ["GITHUB_TOKEN"]) + repo = g.get_repo("huggingface/diffusers") + open_issues = repo.get_issues(state="open") + + for issue in open_issues: + labels = [label.name.lower() for label in issue.get_labels()] + if "stale" in labels: + comments = sorted(issue.get_comments(), key=lambda i: i.created_at, reverse=True) + last_comment = comments[0] if len(comments) > 0 else None + if last_comment is not None and last_comment.user.login != "github-actions[bot]": + # Opens the issue if someone other than Stalebot commented. + issue.edit(state="open") + issue.remove_from_labels("stale") + elif ( + (dt.now(timezone.utc) - issue.updated_at).days > 23 + and (dt.now(timezone.utc) - issue.created_at).days >= 30 + and not any(label in LABELS_TO_EXEMPT for label in labels) + ): + # Post a Stalebot notification after 23 days of inactivity. + issue.create_comment( + "This issue has been automatically marked as stale because it has not had " + "recent activity. If you think this still needs to be addressed " + "please comment on this thread.\n\nPlease note that issues that do not follow the " + "[contributing guidelines](https://github.com/huggingface/diffusers/blob/main/CONTRIBUTING.md) " + "are likely to be ignored." + ) + issue.add_to_labels("stale") + + +if __name__ == "__main__": + main() diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/tests_fetcher.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/tests_fetcher.py new file mode 100644 index 0000000000000000000000000000000000000000..abdc9fd409dbe85e3cf2f72cc32de617b2434ade --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/tests_fetcher.py @@ -0,0 +1,1128 @@ +# coding=utf-8 +# Copyright 2021 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" +Welcome to tests_fetcher V2. + +This util is designed to fetch tests to run on a PR so that only the tests impacted by the modifications are run, and +when too many models are being impacted, only run the tests of a subset of core models. It works like this. + +Stage 1: Identify the modified files. For jobs that run on the main branch, it's just the diff with the last commit. +On a PR, this takes all the files from the branching point to the current commit (so all modifications in a PR, not +just the last commit) but excludes modifications that are on docstrings or comments only. + +Stage 2: Extract the tests to run. This is done by looking at the imports in each module and test file: if module A +imports module B, then changing module B impacts module A, so the tests using module A should be run. We thus get the +dependencies of each model and then recursively builds the 'reverse' map of dependencies to get all modules and tests +impacted by a given file. We then only keep the tests (and only the core models tests if there are too many modules). + +Caveats: + - This module only filters tests by files (not individual tests) so it's better to have tests for different things + in different files. + - This module assumes inits are just importing things, not really building objects, so it's better to structure + them this way and move objects building in separate submodules. + +Usage: + +Base use to fetch the tests in a pull request + +```bash +python utils/tests_fetcher.py +``` + +Base use to fetch the tests on a the main branch (with diff from the last commit): + +```bash +python utils/tests_fetcher.py --diff_with_last_commit +``` +""" + +import argparse +import collections +import json +import os +import re +from contextlib import contextmanager +from pathlib import Path +from typing import Dict, List, Optional, Tuple, Union + +from git import Repo + + +PATH_TO_REPO = Path(__file__).parent.parent.resolve() +PATH_TO_EXAMPLES = PATH_TO_REPO / "examples" +PATH_TO_DIFFUSERS = PATH_TO_REPO / "src/diffusers" +PATH_TO_TESTS = PATH_TO_REPO / "tests" + +# Ignore fixtures in tests folder +# Ignore lora since they are always tested +MODULES_TO_IGNORE = ["fixtures", "lora"] + +IMPORTANT_PIPELINES = [ + "controlnet", + "stable_diffusion", + "stable_diffusion_2", + "stable_diffusion_xl", + "stable_video_diffusion", + "deepfloyd_if", + "kandinsky", + "kandinsky2_2", + "text_to_video_synthesis", + "wuerstchen", +] + + +@contextmanager +def checkout_commit(repo: Repo, commit_id: str): + """ + Context manager that checks out a given commit when entered, but gets back to the reference it was at on exit. + + Args: + repo (`git.Repo`): A git repository (for instance the Transformers repo). + commit_id (`str`): The commit reference to checkout inside the context manager. + """ + current_head = repo.head.commit if repo.head.is_detached else repo.head.ref + + try: + repo.git.checkout(commit_id) + yield + + finally: + repo.git.checkout(current_head) + + +def clean_code(content: str) -> str: + """ + Remove docstrings, empty line or comments from some code (used to detect if a diff is real or only concern + comments or docstrings). + + Args: + content (`str`): The code to clean + + Returns: + `str`: The cleaned code. + """ + # We need to deactivate autoformatting here to write escaped triple quotes (we cannot use real triple quotes or + # this would mess up the result if this function applied to this particular file). + # fmt: off + # Remove docstrings by splitting on triple " then triple ': + splits = content.split('\"\"\"') + content = "".join(splits[::2]) + splits = content.split("\'\'\'") + # fmt: on + content = "".join(splits[::2]) + + # Remove empty lines and comments + lines_to_keep = [] + for line in content.split("\n"): + # remove anything that is after a # sign. + line = re.sub("#.*$", "", line) + # remove white lines + if len(line) != 0 and not line.isspace(): + lines_to_keep.append(line) + return "\n".join(lines_to_keep) + + +def keep_doc_examples_only(content: str) -> str: + """ + Remove everything from the code content except the doc examples (used to determined if a diff should trigger doc + tests or not). + + Args: + content (`str`): The code to clean + + Returns: + `str`: The cleaned code. + """ + # Keep doc examples only by splitting on triple "`" + splits = content.split("```") + # Add leading and trailing "```" so the navigation is easier when compared to the original input `content` + content = "```" + "```".join(splits[1::2]) + "```" + + # Remove empty lines and comments + lines_to_keep = [] + for line in content.split("\n"): + # remove anything that is after a # sign. + line = re.sub("#.*$", "", line) + # remove white lines + if len(line) != 0 and not line.isspace(): + lines_to_keep.append(line) + return "\n".join(lines_to_keep) + + +def get_all_tests() -> List[str]: + """ + Walks the `tests` folder to return a list of files/subfolders. This is used to split the tests to run when using + parallelism. The split is: + + - folders under `tests`: (`tokenization`, `pipelines`, etc) except the subfolder `models` is excluded. + - folders under `tests/models`: `bert`, `gpt2`, etc. + - test files under `tests`: `test_modeling_common.py`, `test_tokenization_common.py`, etc. + """ + + # test folders/files directly under `tests` folder + tests = os.listdir(PATH_TO_TESTS) + tests = [f"tests/{f}" for f in tests if "__pycache__" not in f] + tests = sorted([f for f in tests if (PATH_TO_REPO / f).is_dir() or f.startswith("tests/test_")]) + + return tests + + +def diff_is_docstring_only(repo: Repo, branching_point: str, filename: str) -> bool: + """ + Check if the diff is only in docstrings (or comments and whitespace) in a filename. + + Args: + repo (`git.Repo`): A git repository (for instance the Transformers repo). + branching_point (`str`): The commit reference of where to compare for the diff. + filename (`str`): The filename where we want to know if the diff isonly in docstrings/comments. + + Returns: + `bool`: Whether the diff is docstring/comments only or not. + """ + folder = Path(repo.working_dir) + with checkout_commit(repo, branching_point): + with open(folder / filename, "r", encoding="utf-8") as f: + old_content = f.read() + + with open(folder / filename, "r", encoding="utf-8") as f: + new_content = f.read() + + old_content_clean = clean_code(old_content) + new_content_clean = clean_code(new_content) + + return old_content_clean == new_content_clean + + +def diff_contains_doc_examples(repo: Repo, branching_point: str, filename: str) -> bool: + """ + Check if the diff is only in code examples of the doc in a filename. + + Args: + repo (`git.Repo`): A git repository (for instance the Transformers repo). + branching_point (`str`): The commit reference of where to compare for the diff. + filename (`str`): The filename where we want to know if the diff is only in codes examples. + + Returns: + `bool`: Whether the diff is only in code examples of the doc or not. + """ + folder = Path(repo.working_dir) + with checkout_commit(repo, branching_point): + with open(folder / filename, "r", encoding="utf-8") as f: + old_content = f.read() + + with open(folder / filename, "r", encoding="utf-8") as f: + new_content = f.read() + + old_content_clean = keep_doc_examples_only(old_content) + new_content_clean = keep_doc_examples_only(new_content) + + return old_content_clean != new_content_clean + + +def get_diff(repo: Repo, base_commit: str, commits: List[str]) -> List[str]: + """ + Get the diff between a base commit and one or several commits. + + Args: + repo (`git.Repo`): + A git repository (for instance the Transformers repo). + base_commit (`str`): + The commit reference of where to compare for the diff. This is the current commit, not the branching point! + commits (`List[str]`): + The list of commits with which to compare the repo at `base_commit` (so the branching point). + + Returns: + `List[str]`: The list of Python files with a diff (files added, renamed or deleted are always returned, files + modified are returned if the diff in the file is not only in docstrings or comments, see + `diff_is_docstring_only`). + """ + print("\n### DIFF ###\n") + code_diff = [] + for commit in commits: + for diff_obj in commit.diff(base_commit): + # We always add new python files + if diff_obj.change_type == "A" and diff_obj.b_path.endswith(".py"): + code_diff.append(diff_obj.b_path) + # We check that deleted python files won't break corresponding tests. + elif diff_obj.change_type == "D" and diff_obj.a_path.endswith(".py"): + code_diff.append(diff_obj.a_path) + # Now for modified files + elif diff_obj.change_type in ["M", "R"] and diff_obj.b_path.endswith(".py"): + # In case of renames, we'll look at the tests using both the old and new name. + if diff_obj.a_path != diff_obj.b_path: + code_diff.extend([diff_obj.a_path, diff_obj.b_path]) + else: + # Otherwise, we check modifications are in code and not docstrings. + if diff_is_docstring_only(repo, commit, diff_obj.b_path): + print(f"Ignoring diff in {diff_obj.b_path} as it only concerns docstrings or comments.") + else: + code_diff.append(diff_obj.a_path) + + return code_diff + + +def get_modified_python_files(diff_with_last_commit: bool = False) -> List[str]: + """ + Return a list of python files that have been modified between: + + - the current head and the main branch if `diff_with_last_commit=False` (default) + - the current head and its parent commit otherwise. + + Returns: + `List[str]`: The list of Python files with a diff (files added, renamed or deleted are always returned, files + modified are returned if the diff in the file is not only in docstrings or comments, see + `diff_is_docstring_only`). + """ + repo = Repo(PATH_TO_REPO) + + if not diff_with_last_commit: + # Need to fetch refs for main using remotes when running with github actions. + upstream_main = repo.remotes.origin.refs.main + + print(f"main is at {upstream_main.commit}") + print(f"Current head is at {repo.head.commit}") + + branching_commits = repo.merge_base(upstream_main, repo.head) + for commit in branching_commits: + print(f"Branching commit: {commit}") + return get_diff(repo, repo.head.commit, branching_commits) + else: + print(f"main is at {repo.head.commit}") + parent_commits = repo.head.commit.parents + for commit in parent_commits: + print(f"Parent commit: {commit}") + return get_diff(repo, repo.head.commit, parent_commits) + + +def get_diff_for_doctesting(repo: Repo, base_commit: str, commits: List[str]) -> List[str]: + """ + Get the diff in doc examples between a base commit and one or several commits. + + Args: + repo (`git.Repo`): + A git repository (for instance the Transformers repo). + base_commit (`str`): + The commit reference of where to compare for the diff. This is the current commit, not the branching point! + commits (`List[str]`): + The list of commits with which to compare the repo at `base_commit` (so the branching point). + + Returns: + `List[str]`: The list of Python and Markdown files with a diff (files added or renamed are always returned, files + modified are returned if the diff in the file is only in doctest examples). + """ + print("\n### DIFF ###\n") + code_diff = [] + for commit in commits: + for diff_obj in commit.diff(base_commit): + # We only consider Python files and doc files. + if not diff_obj.b_path.endswith(".py") and not diff_obj.b_path.endswith(".md"): + continue + # We always add new python/md files + if diff_obj.change_type in ["A"]: + code_diff.append(diff_obj.b_path) + # Now for modified files + elif diff_obj.change_type in ["M", "R"]: + # In case of renames, we'll look at the tests using both the old and new name. + if diff_obj.a_path != diff_obj.b_path: + code_diff.extend([diff_obj.a_path, diff_obj.b_path]) + else: + # Otherwise, we check modifications contain some doc example(s). + if diff_contains_doc_examples(repo, commit, diff_obj.b_path): + code_diff.append(diff_obj.a_path) + else: + print(f"Ignoring diff in {diff_obj.b_path} as it doesn't contain any doc example.") + + return code_diff + + +def get_all_doctest_files() -> List[str]: + """ + Return the complete list of python and Markdown files on which we run doctest. + + At this moment, we restrict this to only take files from `src/` or `docs/source/en/` that are not in `utils/not_doctested.txt`. + + Returns: + `List[str]`: The complete list of Python and Markdown files on which we run doctest. + """ + py_files = [str(x.relative_to(PATH_TO_REPO)) for x in PATH_TO_REPO.glob("**/*.py")] + md_files = [str(x.relative_to(PATH_TO_REPO)) for x in PATH_TO_REPO.glob("**/*.md")] + test_files_to_run = py_files + md_files + + # only include files in `src` or `docs/source/en/` + test_files_to_run = [x for x in test_files_to_run if x.startswith(("src/", "docs/source/en/"))] + # not include init files + test_files_to_run = [x for x in test_files_to_run if not x.endswith(("__init__.py",))] + + # These are files not doctested yet. + with open("utils/not_doctested.txt") as fp: + not_doctested = {x.split(" ")[0] for x in fp.read().strip().split("\n")} + + # So far we don't have 100% coverage for doctest. This line will be removed once we achieve 100%. + test_files_to_run = [x for x in test_files_to_run if x not in not_doctested] + + return sorted(test_files_to_run) + + +def get_new_doctest_files(repo, base_commit, branching_commit) -> List[str]: + """ + Get the list of files that were removed from "utils/not_doctested.txt", between `base_commit` and + `branching_commit`. + + Returns: + `List[str]`: List of files that were removed from "utils/not_doctested.txt". + """ + for diff_obj in branching_commit.diff(base_commit): + # Ignores all but the "utils/not_doctested.txt" file. + if diff_obj.a_path != "utils/not_doctested.txt": + continue + # Loads the two versions + folder = Path(repo.working_dir) + with checkout_commit(repo, branching_commit): + with open(folder / "utils/not_doctested.txt", "r", encoding="utf-8") as f: + old_content = f.read() + with open(folder / "utils/not_doctested.txt", "r", encoding="utf-8") as f: + new_content = f.read() + # Compute the removed lines and return them + removed_content = {x.split(" ")[0] for x in old_content.split("\n")} - { + x.split(" ")[0] for x in new_content.split("\n") + } + return sorted(removed_content) + return [] + + +def get_doctest_files(diff_with_last_commit: bool = False) -> List[str]: + """ + Return a list of python and Markdown files where doc example have been modified between: + + - the current head and the main branch if `diff_with_last_commit=False` (default) + - the current head and its parent commit otherwise. + + Returns: + `List[str]`: The list of Python and Markdown files with a diff (files added or renamed are always returned, files + modified are returned if the diff in the file is only in doctest examples). + """ + repo = Repo(PATH_TO_REPO) + + test_files_to_run = [] # noqa + if not diff_with_last_commit: + upstream_main = repo.remotes.origin.refs.main + print(f"main is at {upstream_main.commit}") + print(f"Current head is at {repo.head.commit}") + + branching_commits = repo.merge_base(upstream_main, repo.head) + for commit in branching_commits: + print(f"Branching commit: {commit}") + test_files_to_run = get_diff_for_doctesting(repo, repo.head.commit, branching_commits) + else: + print(f"main is at {repo.head.commit}") + parent_commits = repo.head.commit.parents + for commit in parent_commits: + print(f"Parent commit: {commit}") + test_files_to_run = get_diff_for_doctesting(repo, repo.head.commit, parent_commits) + + all_test_files_to_run = get_all_doctest_files() + + # Add to the test files to run any removed entry from "utils/not_doctested.txt". + new_test_files = get_new_doctest_files(repo, repo.head.commit, upstream_main.commit) + test_files_to_run = list(set(test_files_to_run + new_test_files)) + + # Do not run slow doctest tests on CircleCI + with open("utils/slow_documentation_tests.txt") as fp: + slow_documentation_tests = set(fp.read().strip().split("\n")) + test_files_to_run = [ + x for x in test_files_to_run if x in all_test_files_to_run and x not in slow_documentation_tests + ] + + # Make sure we did not end up with a test file that was removed + test_files_to_run = [f for f in test_files_to_run if (PATH_TO_REPO / f).exists()] + + return sorted(test_files_to_run) + + +# (:?^|\n) -> Non-catching group for the beginning of the doc or a new line. +# \s*from\s+(\.+\S+)\s+import\s+([^\n]+) -> Line only contains from .xxx import yyy and we catch .xxx and yyy +# (?=\n) -> Look-ahead to a new line. We can't just put \n here or using find_all on this re will only catch every +# other import. +_re_single_line_relative_imports = re.compile(r"(?:^|\n)\s*from\s+(\.+\S+)\s+import\s+([^\n]+)(?=\n)") +# (:?^|\n) -> Non-catching group for the beginning of the doc or a new line. +# \s*from\s+(\.+\S+)\s+import\s+\(([^\)]+)\) -> Line continues with from .xxx import (yyy) and we catch .xxx and yyy +# yyy will take multiple lines otherwise there wouldn't be parenthesis. +_re_multi_line_relative_imports = re.compile(r"(?:^|\n)\s*from\s+(\.+\S+)\s+import\s+\(([^\)]+)\)") +# (:?^|\n) -> Non-catching group for the beginning of the doc or a new line. +# \s*from\s+transformers(\S*)\s+import\s+([^\n]+) -> Line only contains from transformers.xxx import yyy and we catch +# .xxx and yyy +# (?=\n) -> Look-ahead to a new line. We can't just put \n here or using find_all on this re will only catch every +# other import. +_re_single_line_direct_imports = re.compile(r"(?:^|\n)\s*from\s+diffusers(\S*)\s+import\s+([^\n]+)(?=\n)") +# (:?^|\n) -> Non-catching group for the beginning of the doc or a new line. +# \s*from\s+transformers(\S*)\s+import\s+\(([^\)]+)\) -> Line continues with from transformers.xxx import (yyy) and we +# catch .xxx and yyy. yyy will take multiple lines otherwise there wouldn't be parenthesis. +_re_multi_line_direct_imports = re.compile(r"(?:^|\n)\s*from\s+diffusers(\S*)\s+import\s+\(([^\)]+)\)") + + +def extract_imports(module_fname: str, cache: Dict[str, List[str]] = None) -> List[str]: + """ + Get the imports a given module makes. + + Args: + module_fname (`str`): + The name of the file of the module where we want to look at the imports (given relative to the root of + the repo). + cache (Dictionary `str` to `List[str]`, *optional*): + To speed up this function if it was previously called on `module_fname`, the cache of all previously + computed results. + + Returns: + `List[str]`: The list of module filenames imported in the input `module_fname` (a submodule we import from that + is a subfolder will give its init file). + """ + if cache is not None and module_fname in cache: + return cache[module_fname] + + with open(PATH_TO_REPO / module_fname, "r", encoding="utf-8") as f: + content = f.read() + + # Filter out all docstrings to not get imports in code examples. As before we need to deactivate formatting to + # keep this as escaped quotes and avoid this function failing on this file. + # fmt: off + splits = content.split('\"\"\"') + # fmt: on + content = "".join(splits[::2]) + + module_parts = str(module_fname).split(os.path.sep) + imported_modules = [] + + # Let's start with relative imports + relative_imports = _re_single_line_relative_imports.findall(content) + relative_imports = [ + (mod, imp) for mod, imp in relative_imports if "# tests_ignore" not in imp and imp.strip() != "(" + ] + multiline_relative_imports = _re_multi_line_relative_imports.findall(content) + relative_imports += [(mod, imp) for mod, imp in multiline_relative_imports if "# tests_ignore" not in imp] + + # We need to remove parts of the module name depending on the depth of the relative imports. + for module, imports in relative_imports: + level = 0 + while module.startswith("."): + module = module[1:] + level += 1 + + if len(module) > 0: + dep_parts = module_parts[: len(module_parts) - level] + module.split(".") + else: + dep_parts = module_parts[: len(module_parts) - level] + imported_module = os.path.sep.join(dep_parts) + imported_modules.append((imported_module, [imp.strip() for imp in imports.split(",")])) + + # Let's continue with direct imports + direct_imports = _re_single_line_direct_imports.findall(content) + direct_imports = [(mod, imp) for mod, imp in direct_imports if "# tests_ignore" not in imp and imp.strip() != "("] + multiline_direct_imports = _re_multi_line_direct_imports.findall(content) + direct_imports += [(mod, imp) for mod, imp in multiline_direct_imports if "# tests_ignore" not in imp] + + # We need to find the relative path of those imports. + for module, imports in direct_imports: + import_parts = module.split(".")[1:] # ignore the name of the repo since we add it below. + dep_parts = ["src", "diffusers"] + import_parts + imported_module = os.path.sep.join(dep_parts) + imported_modules.append((imported_module, [imp.strip() for imp in imports.split(",")])) + + result = [] + # Double check we get proper modules (either a python file or a folder with an init). + for module_file, imports in imported_modules: + if (PATH_TO_REPO / f"{module_file}.py").is_file(): + module_file = f"{module_file}.py" + elif (PATH_TO_REPO / module_file).is_dir() and (PATH_TO_REPO / module_file / "__init__.py").is_file(): + module_file = os.path.sep.join([module_file, "__init__.py"]) + imports = [imp for imp in imports if len(imp) > 0 and re.match("^[A-Za-z0-9_]*$", imp)] + if len(imports) > 0: + result.append((module_file, imports)) + + if cache is not None: + cache[module_fname] = result + + return result + + +def get_module_dependencies(module_fname: str, cache: Dict[str, List[str]] = None) -> List[str]: + """ + Refines the result of `extract_imports` to remove subfolders and get a proper list of module filenames: if a file + as an import `from utils import Foo, Bar`, with `utils` being a subfolder containing many files, this will traverse + the `utils` init file to check where those dependencies come from: for instance the files utils/foo.py and utils/bar.py. + + Warning: This presupposes that all intermediate inits are properly built (with imports from the respective + submodules) and work better if objects are defined in submodules and not the intermediate init (otherwise the + intermediate init is added, and inits usually have a lot of dependencies). + + Args: + module_fname (`str`): + The name of the file of the module where we want to look at the imports (given relative to the root of + the repo). + cache (Dictionary `str` to `List[str]`, *optional*): + To speed up this function if it was previously called on `module_fname`, the cache of all previously + computed results. + + Returns: + `List[str]`: The list of module filenames imported in the input `module_fname` (with submodule imports refined). + """ + dependencies = [] + imported_modules = extract_imports(module_fname, cache=cache) + # The while loop is to recursively traverse all inits we may encounter: we will add things as we go. + while len(imported_modules) > 0: + new_modules = [] + for module, imports in imported_modules: + # If we end up in an __init__ we are often not actually importing from this init (except in the case where + # the object is fully defined in the __init__) + if module.endswith("__init__.py"): + # So we get the imports from that init then try to find where our objects come from. + new_imported_modules = extract_imports(module, cache=cache) + for new_module, new_imports in new_imported_modules: + if any(i in new_imports for i in imports): + if new_module not in dependencies: + new_modules.append((new_module, [i for i in new_imports if i in imports])) + imports = [i for i in imports if i not in new_imports] + if len(imports) > 0: + # If there are any objects lefts, they may be a submodule + path_to_module = PATH_TO_REPO / module.replace("__init__.py", "") + dependencies.extend( + [ + os.path.join(module.replace("__init__.py", ""), f"{i}.py") + for i in imports + if (path_to_module / f"{i}.py").is_file() + ] + ) + imports = [i for i in imports if not (path_to_module / f"{i}.py").is_file()] + if len(imports) > 0: + # Then if there are still objects left, they are fully defined in the init, so we keep it as a + # dependency. + dependencies.append(module) + else: + dependencies.append(module) + + imported_modules = new_modules + + return dependencies + + +def create_reverse_dependency_tree() -> List[Tuple[str, str]]: + """ + Create a list of all edges (a, b) which mean that modifying a impacts b with a going over all module and test files. + """ + cache = {} + all_modules = list(PATH_TO_DIFFUSERS.glob("**/*.py")) + list(PATH_TO_TESTS.glob("**/*.py")) + all_modules = [str(mod.relative_to(PATH_TO_REPO)) for mod in all_modules] + edges = [(dep, mod) for mod in all_modules for dep in get_module_dependencies(mod, cache=cache)] + + return list(set(edges)) + + +def get_tree_starting_at(module: str, edges: List[Tuple[str, str]]) -> List[Union[str, List[str]]]: + """ + Returns the tree starting at a given module following all edges. + + Args: + module (`str`): The module that will be the root of the subtree we want. + edges (`List[Tuple[str, str]]`): The list of all edges of the tree. + + Returns: + `List[Union[str, List[str]]]`: The tree to print in the following format: [module, [list of edges + starting at module], [list of edges starting at the preceding level], ...] + """ + vertices_seen = [module] + new_edges = [edge for edge in edges if edge[0] == module and edge[1] != module and "__init__.py" not in edge[1]] + tree = [module] + while len(new_edges) > 0: + tree.append(new_edges) + final_vertices = list({edge[1] for edge in new_edges}) + vertices_seen.extend(final_vertices) + new_edges = [ + edge + for edge in edges + if edge[0] in final_vertices and edge[1] not in vertices_seen and "__init__.py" not in edge[1] + ] + + return tree + + +def print_tree_deps_of(module, all_edges=None): + """ + Prints the tree of modules depending on a given module. + + Args: + module (`str`): The module that will be the root of the subtree we want. + all_edges (`List[Tuple[str, str]]`, *optional*): + The list of all edges of the tree. Will be set to `create_reverse_dependency_tree()` if not passed. + """ + if all_edges is None: + all_edges = create_reverse_dependency_tree() + tree = get_tree_starting_at(module, all_edges) + + # The list of lines is a list of tuples (line_to_be_printed, module) + # Keeping the modules lets us know where to insert each new lines in the list. + lines = [(tree[0], tree[0])] + for index in range(1, len(tree)): + edges = tree[index] + start_edges = {edge[0] for edge in edges} + + for start in start_edges: + end_edges = {edge[1] for edge in edges if edge[0] == start} + # We will insert all those edges just after the line showing start. + pos = 0 + while lines[pos][1] != start: + pos += 1 + lines = lines[: pos + 1] + [(" " * (2 * index) + end, end) for end in end_edges] + lines[pos + 1 :] + + for line in lines: + # We don't print the refs that where just here to help build lines. + print(line[0]) + + +def init_test_examples_dependencies() -> Tuple[Dict[str, List[str]], List[str]]: + """ + The test examples do not import from the examples (which are just scripts, not modules) so we need some extra + care initializing the dependency map, which is the goal of this function. It initializes the dependency map for + example files by linking each example to the example test file for the example framework. + + Returns: + `Tuple[Dict[str, List[str]], List[str]]`: A tuple with two elements: the initialized dependency map which is a + dict test example file to list of example files potentially tested by that test file, and the list of all + example files (to avoid recomputing it later). + """ + test_example_deps = {} + all_examples = [] + for framework in ["flax", "pytorch", "tensorflow"]: + test_files = list((PATH_TO_EXAMPLES / framework).glob("test_*.py")) + all_examples.extend(test_files) + # Remove the files at the root of examples/framework since they are not proper examples (they are either utils + # or example test files). + examples = [ + f for f in (PATH_TO_EXAMPLES / framework).glob("**/*.py") if f.parent != PATH_TO_EXAMPLES / framework + ] + all_examples.extend(examples) + for test_file in test_files: + with open(test_file, "r", encoding="utf-8") as f: + content = f.read() + # Map all examples to the test files found in examples/framework. + test_example_deps[str(test_file.relative_to(PATH_TO_REPO))] = [ + str(e.relative_to(PATH_TO_REPO)) for e in examples if e.name in content + ] + # Also map the test files to themselves. + test_example_deps[str(test_file.relative_to(PATH_TO_REPO))].append( + str(test_file.relative_to(PATH_TO_REPO)) + ) + return test_example_deps, all_examples + + +def create_reverse_dependency_map() -> Dict[str, List[str]]: + """ + Create the dependency map from module/test filename to the list of modules/tests that depend on it recursively. + + Returns: + `Dict[str, List[str]]`: The reverse dependency map as a dictionary mapping filenames to all the filenames + depending on it recursively. This way the tests impacted by a change in file A are the test files in the list + corresponding to key A in this result. + """ + cache = {} + # Start from the example deps init. + example_deps, examples = init_test_examples_dependencies() + # Add all modules and all tests to all examples + all_modules = list(PATH_TO_DIFFUSERS.glob("**/*.py")) + list(PATH_TO_TESTS.glob("**/*.py")) + examples + all_modules = [str(mod.relative_to(PATH_TO_REPO)) for mod in all_modules] + # Compute the direct dependencies of all modules. + direct_deps = {m: get_module_dependencies(m, cache=cache) for m in all_modules} + direct_deps.update(example_deps) + + # This recurses the dependencies + something_changed = True + while something_changed: + something_changed = False + for m in all_modules: + for d in direct_deps[m]: + # We stop recursing at an init (cause we always end up in the main init and we don't want to add all + # files which the main init imports) + if d.endswith("__init__.py"): + continue + if d not in direct_deps: + raise ValueError(f"KeyError:{d}. From {m}") + new_deps = set(direct_deps[d]) - set(direct_deps[m]) + if len(new_deps) > 0: + direct_deps[m].extend(list(new_deps)) + something_changed = True + + # Finally we can build the reverse map. + reverse_map = collections.defaultdict(list) + for m in all_modules: + for d in direct_deps[m]: + reverse_map[d].append(m) + + # For inits, we don't do the reverse deps but the direct deps: if modifying an init, we want to make sure we test + # all the modules impacted by that init. + for m in [f for f in all_modules if f.endswith("__init__.py")]: + direct_deps = get_module_dependencies(m, cache=cache) + deps = sum([reverse_map[d] for d in direct_deps if not d.endswith("__init__.py")], direct_deps) + reverse_map[m] = list(set(deps) - {m}) + + return reverse_map + + +def create_module_to_test_map(reverse_map: Dict[str, List[str]] = None) -> Dict[str, List[str]]: + """ + Extract the tests from the reverse_dependency_map and potentially filters the model tests. + + Args: + reverse_map (`Dict[str, List[str]]`, *optional*): + The reverse dependency map as created by `create_reverse_dependency_map`. Will default to the result of + that function if not provided. + filter_pipelines (`bool`, *optional*, defaults to `False`): + Whether or not to filter pipeline tests to only include core pipelines if a file impacts a lot of models. + + Returns: + `Dict[str, List[str]]`: A dictionary that maps each file to the tests to execute if that file was modified. + """ + if reverse_map is None: + reverse_map = create_reverse_dependency_map() + + # Utility that tells us if a given file is a test (taking test examples into account) + def is_test(fname): + if fname.startswith("tests"): + return True + if fname.startswith("examples") and fname.split(os.path.sep)[-1].startswith("test"): + return True + return False + + # Build the test map + test_map = {module: [f for f in deps if is_test(f)] for module, deps in reverse_map.items()} + + return test_map + + +def check_imports_all_exist(): + """ + Isn't used per se by the test fetcher but might be used later as a quality check. Putting this here for now so the + code is not lost. This checks all imports in a given file do exist. + """ + cache = {} + all_modules = list(PATH_TO_DIFFUSERS.glob("**/*.py")) + list(PATH_TO_TESTS.glob("**/*.py")) + all_modules = [str(mod.relative_to(PATH_TO_REPO)) for mod in all_modules] + direct_deps = {m: get_module_dependencies(m, cache=cache) for m in all_modules} + + for module, deps in direct_deps.items(): + for dep in deps: + if not (PATH_TO_REPO / dep).is_file(): + print(f"{module} has dependency on {dep} which does not exist.") + + +def _print_list(l) -> str: + """ + Pretty print a list of elements with one line per element and a - starting each line. + """ + return "\n".join([f"- {f}" for f in l]) + + +def update_test_map_with_core_pipelines(json_output_file: str): + print(f"\n### ADD CORE PIPELINE TESTS ###\n{_print_list(IMPORTANT_PIPELINES)}") + with open(json_output_file, "rb") as fp: + test_map = json.load(fp) + + # Add core pipelines as their own test group + test_map["core_pipelines"] = " ".join( + sorted([str(PATH_TO_TESTS / f"pipelines/{pipe}") for pipe in IMPORTANT_PIPELINES]) + ) + + # If there are no existing pipeline tests save the map + if "pipelines" not in test_map: + with open(json_output_file, "w", encoding="UTF-8") as fp: + json.dump(test_map, fp, ensure_ascii=False) + + pipeline_tests = test_map.pop("pipelines") + pipeline_tests = pipeline_tests.split(" ") + + # Remove core pipeline tests from the fetched pipeline tests + updated_pipeline_tests = [] + for pipe in pipeline_tests: + if pipe == "tests/pipelines" or Path(pipe).parts[2] in IMPORTANT_PIPELINES: + continue + updated_pipeline_tests.append(pipe) + + if len(updated_pipeline_tests) > 0: + test_map["pipelines"] = " ".join(sorted(updated_pipeline_tests)) + + with open(json_output_file, "w", encoding="UTF-8") as fp: + json.dump(test_map, fp, ensure_ascii=False) + + +def create_json_map(test_files_to_run: List[str], json_output_file: Optional[str] = None): + """ + Creates a map from a list of tests to run to easily split them by category, when running parallelism of slow tests. + + Args: + test_files_to_run (`List[str]`): The list of tests to run. + json_output_file (`str`): The path where to store the built json map. + """ + if json_output_file is None: + return + + test_map = {} + for test_file in test_files_to_run: + # `test_file` is a path to a test folder/file, starting with `tests/`. For example, + # - `tests/models/bert/test_modeling_bert.py` or `tests/models/bert` + # - `tests/trainer/test_trainer.py` or `tests/trainer` + # - `tests/test_modeling_common.py` + names = test_file.split(os.path.sep) + module = names[1] + if module in MODULES_TO_IGNORE: + continue + + if len(names) > 2 or not test_file.endswith(".py"): + # test folders under `tests` or python files under them + # take the part like tokenization, `pipeline`, etc. for other test categories + key = os.path.sep.join(names[1:2]) + else: + # common test files directly under `tests/` + key = "common" + + if key not in test_map: + test_map[key] = [] + test_map[key].append(test_file) + + # sort the keys & values + keys = sorted(test_map.keys()) + test_map = {k: " ".join(sorted(test_map[k])) for k in keys} + + with open(json_output_file, "w", encoding="UTF-8") as fp: + json.dump(test_map, fp, ensure_ascii=False) + + +def infer_tests_to_run( + output_file: str, + diff_with_last_commit: bool = False, + json_output_file: Optional[str] = None, +): + """ + The main function called by the test fetcher. Determines the tests to run from the diff. + + Args: + output_file (`str`): + The path where to store the summary of the test fetcher analysis. Other files will be stored in the same + folder: + + - examples_test_list.txt: The list of examples tests to run. + - test_repo_utils.txt: Will indicate if the repo utils tests should be run or not. + - doctest_list.txt: The list of doctests to run. + + diff_with_last_commit (`bool`, *optional*, defaults to `False`): + Whether to analyze the diff with the last commit (for use on the main branch after a PR is merged) or with + the branching point from main (for use on each PR). + filter_models (`bool`, *optional*, defaults to `True`): + Whether or not to filter the tests to core models only, when a file modified results in a lot of model + tests. + json_output_file (`str`, *optional*): + The path where to store the json file mapping categories of tests to tests to run (used for parallelism or + the slow tests). + """ + modified_files = get_modified_python_files(diff_with_last_commit=diff_with_last_commit) + print(f"\n### MODIFIED FILES ###\n{_print_list(modified_files)}") + # Create the map that will give us all impacted modules. + reverse_map = create_reverse_dependency_map() + impacted_files = modified_files.copy() + for f in modified_files: + if f in reverse_map: + impacted_files.extend(reverse_map[f]) + + # Remove duplicates + impacted_files = sorted(set(impacted_files)) + print(f"\n### IMPACTED FILES ###\n{_print_list(impacted_files)}") + + # Grab the corresponding test files: + if any(x in modified_files for x in ["setup.py"]): + test_files_to_run = ["tests", "examples"] + + # in order to trigger pipeline tests even if no code change at all + if "tests/utils/tiny_model_summary.json" in modified_files: + test_files_to_run = ["tests"] + any(f.split(os.path.sep)[0] == "utils" for f in modified_files) + else: + # All modified tests need to be run. + test_files_to_run = [ + f for f in modified_files if f.startswith("tests") and f.split(os.path.sep)[-1].startswith("test") + ] + # Then we grab the corresponding test files. + test_map = create_module_to_test_map(reverse_map=reverse_map) + for f in modified_files: + if f in test_map: + test_files_to_run.extend(test_map[f]) + test_files_to_run = sorted(set(test_files_to_run)) + # Make sure we did not end up with a test file that was removed + test_files_to_run = [f for f in test_files_to_run if (PATH_TO_REPO / f).exists()] + + any(f.split(os.path.sep)[0] == "utils" for f in modified_files) + + examples_tests_to_run = [f for f in test_files_to_run if f.startswith("examples")] + test_files_to_run = [f for f in test_files_to_run if not f.startswith("examples")] + print(f"\n### TEST TO RUN ###\n{_print_list(test_files_to_run)}") + if len(test_files_to_run) > 0: + with open(output_file, "w", encoding="utf-8") as f: + f.write(" ".join(test_files_to_run)) + + # Create a map that maps test categories to test files, i.e. `models/bert` -> [...test_modeling_bert.py, ...] + + # Get all test directories (and some common test files) under `tests` and `tests/models` if `test_files_to_run` + # contains `tests` (i.e. when `setup.py` is changed). + if "tests" in test_files_to_run: + test_files_to_run = get_all_tests() + + create_json_map(test_files_to_run, json_output_file) + + print(f"\n### EXAMPLES TEST TO RUN ###\n{_print_list(examples_tests_to_run)}") + if len(examples_tests_to_run) > 0: + # We use `all` in the case `commit_flags["test_all"]` as well as in `create_circleci_config.py` for processing + if examples_tests_to_run == ["examples"]: + examples_tests_to_run = ["all"] + example_file = Path(output_file).parent / "examples_test_list.txt" + with open(example_file, "w", encoding="utf-8") as f: + f.write(" ".join(examples_tests_to_run)) + + +def filter_tests(output_file: str, filters: List[str]): + """ + Reads the content of the output file and filters out all the tests in a list of given folders. + + Args: + output_file (`str` or `os.PathLike`): The path to the output file of the tests fetcher. + filters (`List[str]`): A list of folders to filter. + """ + if not os.path.isfile(output_file): + print("No test file found.") + return + with open(output_file, "r", encoding="utf-8") as f: + test_files = f.read().split(" ") + + if len(test_files) == 0 or test_files == [""]: + print("No tests to filter.") + return + + if test_files == ["tests"]: + test_files = [os.path.join("tests", f) for f in os.listdir("tests") if f not in ["__init__.py"] + filters] + else: + test_files = [f for f in test_files if f.split(os.path.sep)[1] not in filters] + + with open(output_file, "w", encoding="utf-8") as f: + f.write(" ".join(test_files)) + + +def parse_commit_message(commit_message: str) -> Dict[str, bool]: + """ + Parses the commit message to detect if a command is there to skip, force all or part of the CI. + + Args: + commit_message (`str`): The commit message of the current commit. + + Returns: + `Dict[str, bool]`: A dictionary of strings to bools with keys the following keys: `"skip"`, + `"test_all_models"` and `"test_all"`. + """ + if commit_message is None: + return {"skip": False, "no_filter": False, "test_all": False} + + command_search = re.search(r"\[([^\]]*)\]", commit_message) + if command_search is not None: + command = command_search.groups()[0] + command = command.lower().replace("-", " ").replace("_", " ") + skip = command in ["ci skip", "skip ci", "circleci skip", "skip circleci"] + no_filter = set(command.split(" ")) == {"no", "filter"} + test_all = set(command.split(" ")) == {"test", "all"} + return {"skip": skip, "no_filter": no_filter, "test_all": test_all} + else: + return {"skip": False, "no_filter": False, "test_all": False} + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument( + "--output_file", type=str, default="test_list.txt", help="Where to store the list of tests to run" + ) + parser.add_argument( + "--json_output_file", + type=str, + default="test_map.json", + help="Where to store the tests to run in a dictionary format mapping test categories to test files", + ) + parser.add_argument( + "--diff_with_last_commit", + action="store_true", + help="To fetch the tests between the current commit and the last commit", + ) + parser.add_argument( + "--filter_tests", + action="store_true", + help="Will filter the pipeline/repo utils tests outside of the generated list of tests.", + ) + parser.add_argument( + "--print_dependencies_of", + type=str, + help="Will only print the tree of modules depending on the file passed.", + default=None, + ) + parser.add_argument( + "--commit_message", + type=str, + help="The commit message (which could contain a command to force all tests or skip the CI).", + default=None, + ) + args = parser.parse_args() + if args.print_dependencies_of is not None: + print_tree_deps_of(args.print_dependencies_of) + else: + repo = Repo(PATH_TO_REPO) + commit_message = repo.head.commit.message + commit_flags = parse_commit_message(commit_message) + if commit_flags["skip"]: + print("Force-skipping the CI") + quit() + if commit_flags["no_filter"]: + print("Running all tests fetched without filtering.") + if commit_flags["test_all"]: + print("Force-launching all tests") + + diff_with_last_commit = args.diff_with_last_commit + if not diff_with_last_commit and not repo.head.is_detached and repo.head.ref == repo.refs.main: + print("main branch detected, fetching tests against last commit.") + diff_with_last_commit = True + + if not commit_flags["test_all"]: + try: + infer_tests_to_run( + args.output_file, + diff_with_last_commit=diff_with_last_commit, + json_output_file=args.json_output_file, + ) + filter_tests(args.output_file, ["repo_utils"]) + update_test_map_with_core_pipelines(json_output_file=args.json_output_file) + + except Exception as e: + print(f"\nError when trying to grab the relevant tests: {e}\n\nRunning all tests.") + commit_flags["test_all"] = True + + if commit_flags["test_all"]: + with open(args.output_file, "w", encoding="utf-8") as f: + f.write("tests") + example_file = Path(args.output_file).parent / "examples_test_list.txt" + with open(example_file, "w", encoding="utf-8") as f: + f.write("all") + + test_files_to_run = get_all_tests() + create_json_map(test_files_to_run, args.json_output_file) + update_test_map_with_core_pipelines(json_output_file=args.json_output_file) diff --git a/tasks/tasksmith-1c5704b1f07f/environment/source/utils/update_metadata.py b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/update_metadata.py new file mode 100644 index 0000000000000000000000000000000000000000..4fde581d4170ef46b168c4cbf59671463d9666c7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/environment/source/utils/update_metadata.py @@ -0,0 +1,125 @@ +# coding=utf-8 +# Copyright 2025 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Utility that updates the metadata of the Diffusers library in the repository `huggingface/diffusers-metadata`. + +Usage for an update (as used by the GitHub action `update_metadata`): + +```bash +python utils/update_metadata.py +``` + +Script modified from: +https://github.com/huggingface/transformers/blob/main/utils/update_metadata.py +""" + +import argparse +import os +import tempfile + +import pandas as pd +from datasets import Dataset +from huggingface_hub import hf_hub_download, upload_folder + +from diffusers.pipelines.auto_pipeline import ( + AUTO_IMAGE2IMAGE_PIPELINES_MAPPING, + AUTO_INPAINT_PIPELINES_MAPPING, + AUTO_TEXT2IMAGE_PIPELINES_MAPPING, +) + + +PIPELINE_TAG_JSON = "pipeline_tags.json" + + +def get_supported_pipeline_table() -> dict: + """ + Generates a dictionary containing the supported auto classes for each pipeline type, + using the content of the auto modules. + """ + # All supported pipelines for automatic mapping. + all_supported_pipeline_classes = [ + (class_name.__name__, "text-to-image", "AutoPipelineForText2Image") + for _, class_name in AUTO_TEXT2IMAGE_PIPELINES_MAPPING.items() + ] + all_supported_pipeline_classes += [ + (class_name.__name__, "image-to-image", "AutoPipelineForImage2Image") + for _, class_name in AUTO_IMAGE2IMAGE_PIPELINES_MAPPING.items() + ] + all_supported_pipeline_classes += [ + (class_name.__name__, "image-to-image", "AutoPipelineForInpainting") + for _, class_name in AUTO_INPAINT_PIPELINES_MAPPING.items() + ] + all_supported_pipeline_classes = list(set(all_supported_pipeline_classes)) + all_supported_pipeline_classes.sort(key=lambda x: x[0]) + + data = {} + data["pipeline_class"] = [sample[0] for sample in all_supported_pipeline_classes] + data["pipeline_tag"] = [sample[1] for sample in all_supported_pipeline_classes] + data["auto_class"] = [sample[2] for sample in all_supported_pipeline_classes] + + return data + + +def update_metadata(commit_sha: str): + """ + Update the metadata for the Diffusers repo in `huggingface/diffusers-metadata`. + + Args: + commit_sha (`str`): The commit SHA on Diffusers corresponding to this update. + """ + pipelines_table = get_supported_pipeline_table() + pipelines_table = pd.DataFrame(pipelines_table) + pipelines_dataset = Dataset.from_pandas(pipelines_table) + + hub_pipeline_tags_json = hf_hub_download( + repo_id="huggingface/diffusers-metadata", + filename=PIPELINE_TAG_JSON, + repo_type="dataset", + ) + with open(hub_pipeline_tags_json) as f: + hub_pipeline_tags_json = f.read() + + with tempfile.TemporaryDirectory() as tmp_dir: + pipelines_dataset.to_json(os.path.join(tmp_dir, PIPELINE_TAG_JSON)) + + with open(os.path.join(tmp_dir, PIPELINE_TAG_JSON)) as f: + pipeline_tags_json = f.read() + + hub_pipeline_tags_equal = hub_pipeline_tags_json == pipeline_tags_json + if hub_pipeline_tags_equal: + print("No updates, not pushing the metadata files.") + return + + if commit_sha is not None: + commit_message = ( + f"Update with commit {commit_sha}\n\nSee: https://github.com/huggingface/diffusers/commit/{commit_sha}" + ) + else: + commit_message = "Update" + + upload_folder( + repo_id="huggingface/diffusers-metadata", + folder_path=tmp_dir, + repo_type="dataset", + commit_message=commit_message, + ) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument("--commit_sha", default=None, type=str, help="The sha of the commit going with this update.") + args = parser.parse_args() + + update_metadata(args.commit_sha) diff --git a/tasks/tasksmith-1c5704b1f07f/instruction.md b/tasks/tasksmith-1c5704b1f07f/instruction.md new file mode 100644 index 0000000000000000000000000000000000000000..661dae067bf05748195c2de571d235b2ea9c98c1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/instruction.md @@ -0,0 +1,65 @@ +Add `ZImageTransformer2DModel` and `ZImagePipeline` to the diffusers library. + +**Transformer model** (`ZImageTransformer2DModel`): + +- Importable as `from diffusers import ZImageTransformer2DModel` +- Inherits `ModelMixin`, `ConfigMixin`, `PeftAdapterMixin`, `FromOriginalModelMixin` +- Constructor parameters (with defaults): `all_patch_size=(2,)`, `all_f_patch_size=(1,)`, `in_channels=16`, `dim=3840`, `n_layers=30`, `n_refiner_layers=2`, `n_heads=30`, `n_kv_heads=30`, `norm_eps=1e-5`, `qk_norm=True`, `cap_feat_dim=2560`, `rope_theta=256.0`, `t_scale=1000.0`, `axes_dims=[32,48,48]`, `axes_lens=[1024,512,512]`. Requirement: `sum(axes_dims) == dim // n_heads`. +- Forward signature: `forward(x: List[Tensor], t: Tensor, cap_feats: List[Tensor], patch_size=2, f_patch_size=1) -> (List[Tensor], dict)`. Each `x[i]` has shape `(in_channels, F, H, W)`. Each `cap_feats[i]` has shape `(N_tokens, cap_feat_dim)`. Returns a list of tensors each with shape `(in_channels, F, H, W)` plus an empty dict. +- Internally patchifies images and captions (padding sequences to multiples of 32), runs separate noise-refiner blocks (with adaLN timestep modulation) and context-refiner blocks (without modulation), concatenates into a unified sequence for the main transformer layers, then unpatchifies. RoPE embeddings are applied inside the attention processor. +- Supports `enable_gradient_checkpointing()` / `disable_gradient_checkpointing()`. +- `save_pretrained` / `from_pretrained` round-trip must reproduce identical outputs. + +**Custom attention processor** (`ZSingleStreamAttnProcessor`): self-attention only (no cross-attention); applies QK norm (RMSNorm), RoPE via `freqs_cis`, and SDPA. Raises `ImportError` if `torch.nn.functional.scaled_dot_product_attention` is absent. + +**Pipeline** (`ZImagePipeline`): + +- Importable as `from diffusers import ZImagePipeline` +- Components: `scheduler` (FlowMatchEulerDiscreteScheduler), `vae` (AutoencoderKL), `text_encoder` (PreTrainedModel), `tokenizer` (AutoTokenizer), `transformer` (ZImageTransformer2DModel) +- `model_cpu_offload_seq = "text_encoder->transformer->vae"` +- `__call__` accepts `prompt`, `height`, `width`, `num_inference_steps`, `guidance_scale`, `cfg_normalization`, `cfg_truncation`, `negative_prompt`, `prompt_embeds` (pre-computed as `List[Tensor]`), `negative_prompt_embeds`, `latents=None`, `output_type`, `return_dict`, `callback_on_step_end`, `callback_on_step_end_tensor_inputs=["latents"]`, `max_sequence_length` +- Returns `ZImagePipelineOutput(images=...)` when `return_dict=True`, else a tuple +- CFG truncation: when `cfg_truncation <= 1.0` and normalized timestep exceeds `cfg_truncation`, guidance scale drops to 0 for that step +- Height and width must each be divisible by `vae_scale_factor * 2`; raise `ValueError` otherwise + +**Registry hooks**: register `ZSingleStreamAttnProcessor` in `AttentionProcessorRegistry` and `ZImageTransformerBlock` in `TransformerBlockRegistry` (with `return_hidden_states_index=0`, `return_encoder_hidden_states_index=None`). + +Both `ZImageTransformer2DModel` and `ZImagePipeline` must appear in the top-level `diffusers` namespace. + +Work in `/workspace`. Submit your fix in Python source files under `src/diffusers`. Preserve the other public behavior. The environment is offline; dependencies are preinstalled. Grading runs the relevant repository tests in a fresh environment, using your submitted source files. + + +For model inspection and checkpoint compatibility, expose the noise-refiner modules as +`noise_refiner`, supporting standard PyTorch forward hooks. Learned padding parameters +are available as `x_pad_token` and `cap_pad_token`. Noise-refiner activations themselves +must depend differentiably on the timestep, before main blocks or final output projection. + +The pipeline supports BF16 model/VAE execution, with float32 scheduler latents. Precomputed +positive and negative embeddings allow generation without a tokenizer or text encoder. +Z-Image predicts negative denoising velocity: active classifier-free guidance uses +`conditional + guidance_scale * (conditional - unconditional)` before conversion to the +scheduler's velocity convention. Truncation disables guidance only on steps whose +normalized time exceeds the threshold; earlier steps must retain guidance. Locally +initialized tiny models, VAEs and embeddings are sufficient to exercise these contracts. + + +`latents` may supply initial noise as a tensor with shape +`(batch_size, transformer.in_channels, height // vae_scale_factor, width // vae_scale_factor)`; +a mismatched shape raises `ValueError`. Supplied float32 latents are stepped by the scheduler. +After each denoising step, `callback_on_step_end(pipeline, step_index, timestep, values)` +receives the requested tensor inputs (by default `values["latents"]`) and returns a dictionary +of replacements, which may be unchanged. `output_type="latent"` returns final latent tensors; +`output_type="np"` decodes through the VAE and returns NumPy images shaped `(batch, height, +width, channels)`. `return_dict=False` returns the same images in a one-element tuple. + + +CPU execution scope: the installed PyTorch FlexAttention backend is available to both +users and the verifier through the existing public +`transformer.set_attention_backend("flex")` API. Tiny CPU pipeline generation, +including the real batched classifier-free guidance path, is evaluated with this +backend and equal-length positive/negative precomputed embeddings. Preserve this +public backend selection behavior. This CPU task does not require the default +native SDPA backend to support batched padding masks, or claim variable-length +padding-mask equivalence across attention backends. Actual transformer, scheduler, +VAE decoding, CFG arithmetic and truncation behavior remain required; no per-sample +replacement or mocked attention substitutes for the real pipeline. diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/__init__.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..a883a361e6db1930ec9b689e29c6d36636e37cf5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/__init__.py @@ -0,0 +1,1446 @@ +__version__ = "0.36.0.dev0" + +from typing import TYPE_CHECKING + +from .utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + is_accelerate_available, + is_bitsandbytes_available, + is_flax_available, + is_gguf_available, + is_k_diffusion_available, + is_librosa_available, + is_note_seq_available, + is_nvidia_modelopt_available, + is_onnx_available, + is_opencv_available, + is_optimum_quanto_available, + is_scipy_available, + is_sentencepiece_available, + is_torch_available, + is_torchao_available, + is_torchsde_available, + is_transformers_available, +) + + +# Lazy Import based on +# https://github.com/huggingface/transformers/blob/main/src/transformers/__init__.py + +# When adding a new object to this init, please add it to `_import_structure`. The `_import_structure` is a dictionary submodule to list of object names, +# and is used to defer the actual importing for when the objects are requested. +# This way `import diffusers` provides the names in the namespace without actually importing anything (and especially none of the backends). + +_import_structure = { + "configuration_utils": ["ConfigMixin"], + "guiders": [], + "hooks": [], + "loaders": ["FromOriginalModelMixin"], + "models": [], + "modular_pipelines": [], + "pipelines": [], + "quantizers.pipe_quant_config": ["PipelineQuantizationConfig"], + "quantizers.quantization_config": [], + "schedulers": [], + "utils": [ + "OptionalDependencyNotAvailable", + "is_flax_available", + "is_inflect_available", + "is_invisible_watermark_available", + "is_k_diffusion_available", + "is_k_diffusion_version", + "is_librosa_available", + "is_note_seq_available", + "is_onnx_available", + "is_scipy_available", + "is_torch_available", + "is_torchsde_available", + "is_transformers_available", + "is_transformers_version", + "is_unidecode_available", + "logging", + ], +} + +try: + if not is_torch_available() and not is_accelerate_available() and not is_bitsandbytes_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_bitsandbytes_objects + + _import_structure["utils.dummy_bitsandbytes_objects"] = [ + name for name in dir(dummy_bitsandbytes_objects) if not name.startswith("_") + ] +else: + _import_structure["quantizers.quantization_config"].append("BitsAndBytesConfig") + +try: + if not is_torch_available() and not is_accelerate_available() and not is_gguf_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_gguf_objects + + _import_structure["utils.dummy_gguf_objects"] = [ + name for name in dir(dummy_gguf_objects) if not name.startswith("_") + ] +else: + _import_structure["quantizers.quantization_config"].append("GGUFQuantizationConfig") + +try: + if not is_torch_available() and not is_accelerate_available() and not is_torchao_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torchao_objects + + _import_structure["utils.dummy_torchao_objects"] = [ + name for name in dir(dummy_torchao_objects) if not name.startswith("_") + ] +else: + _import_structure["quantizers.quantization_config"].append("TorchAoConfig") + +try: + if not is_torch_available() and not is_accelerate_available() and not is_optimum_quanto_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_optimum_quanto_objects + + _import_structure["utils.dummy_optimum_quanto_objects"] = [ + name for name in dir(dummy_optimum_quanto_objects) if not name.startswith("_") + ] +else: + _import_structure["quantizers.quantization_config"].append("QuantoConfig") + +try: + if not is_torch_available() and not is_accelerate_available() and not is_nvidia_modelopt_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_nvidia_modelopt_objects + + _import_structure["utils.dummy_nvidia_modelopt_objects"] = [ + name for name in dir(dummy_nvidia_modelopt_objects) if not name.startswith("_") + ] +else: + _import_structure["quantizers.quantization_config"].append("NVIDIAModelOptConfig") + +try: + if not is_onnx_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_onnx_objects # noqa F403 + + _import_structure["utils.dummy_onnx_objects"] = [ + name for name in dir(dummy_onnx_objects) if not name.startswith("_") + ] + +else: + _import_structure["pipelines"].extend(["OnnxRuntimeModel"]) + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_pt_objects # noqa F403 + + _import_structure["utils.dummy_pt_objects"] = [name for name in dir(dummy_pt_objects) if not name.startswith("_")] + +else: + _import_structure["guiders"].extend( + [ + "AdaptiveProjectedGuidance", + "AdaptiveProjectedMixGuidance", + "AutoGuidance", + "BaseGuidance", + "ClassifierFreeGuidance", + "ClassifierFreeZeroStarGuidance", + "FrequencyDecoupledGuidance", + "PerturbedAttentionGuidance", + "SkipLayerGuidance", + "SmoothedEnergyGuidance", + "TangentialClassifierFreeGuidance", + ] + ) + _import_structure["hooks"].extend( + [ + "FasterCacheConfig", + "FirstBlockCacheConfig", + "HookRegistry", + "LayerSkipConfig", + "PyramidAttentionBroadcastConfig", + "SmoothedEnergyGuidanceConfig", + "apply_faster_cache", + "apply_first_block_cache", + "apply_layer_skip", + "apply_pyramid_attention_broadcast", + ] + ) + _import_structure["models"].extend( + [ + "AllegroTransformer3DModel", + "AsymmetricAutoencoderKL", + "AttentionBackendName", + "AuraFlowTransformer2DModel", + "AutoencoderDC", + "AutoencoderKL", + "AutoencoderKLAllegro", + "AutoencoderKLCogVideoX", + "AutoencoderKLCosmos", + "AutoencoderKLHunyuanImage", + "AutoencoderKLHunyuanImageRefiner", + "AutoencoderKLHunyuanVideo", + "AutoencoderKLLTXVideo", + "AutoencoderKLMagvit", + "AutoencoderKLMochi", + "AutoencoderKLQwenImage", + "AutoencoderKLTemporalDecoder", + "AutoencoderKLWan", + "AutoencoderOobleck", + "AutoencoderTiny", + "AutoModel", + "BriaFiboTransformer2DModel", + "BriaTransformer2DModel", + "CacheMixin", + "ChromaTransformer2DModel", + "ChronoEditTransformer3DModel", + "CogVideoXTransformer3DModel", + "CogView3PlusTransformer2DModel", + "CogView4Transformer2DModel", + "ConsisIDTransformer3DModel", + "ConsistencyDecoderVAE", + "ContextParallelConfig", + "ControlNetModel", + "ControlNetUnionModel", + "ControlNetXSAdapter", + "CosmosTransformer3DModel", + "DiTTransformer2DModel", + "EasyAnimateTransformer3DModel", + "FluxControlNetModel", + "FluxMultiControlNetModel", + "FluxTransformer2DModel", + "HiDreamImageTransformer2DModel", + "HunyuanDiT2DControlNetModel", + "HunyuanDiT2DModel", + "HunyuanDiT2DMultiControlNetModel", + "HunyuanImageTransformer2DModel", + "HunyuanVideoFramepackTransformer3DModel", + "HunyuanVideoTransformer3DModel", + "I2VGenXLUNet", + "Kandinsky3UNet", + "Kandinsky5Transformer3DModel", + "LatteTransformer3DModel", + "LTXVideoTransformer3DModel", + "Lumina2Transformer2DModel", + "LuminaNextDiT2DModel", + "MochiTransformer3DModel", + "ModelMixin", + "MotionAdapter", + "MultiAdapter", + "MultiControlNetModel", + "OmniGenTransformer2DModel", + "ParallelConfig", + "PixArtTransformer2DModel", + "PriorTransformer", + "PRXTransformer2DModel", + "QwenImageControlNetModel", + "QwenImageMultiControlNetModel", + "QwenImageTransformer2DModel", + "SanaControlNetModel", + "SanaTransformer2DModel", + "SanaVideoTransformer3DModel", + "SD3ControlNetModel", + "SD3MultiControlNetModel", + "SD3Transformer2DModel", + "SkyReelsV2Transformer3DModel", + "SparseControlNetModel", + "StableAudioDiTModel", + "StableCascadeUNet", + "T2IAdapter", + "T5FilmDecoder", + "Transformer2DModel", + "TransformerTemporalModel", + "UNet1DModel", + "UNet2DConditionModel", + "UNet2DModel", + "UNet3DConditionModel", + "UNetControlNetXSModel", + "UNetMotionModel", + "UNetSpatioTemporalConditionModel", + "UVit2DModel", + "VQModel", + "WanAnimateTransformer3DModel", + "WanTransformer3DModel", + "WanVACETransformer3DModel", + "ZImageTransformer2DModel", + "attention_backend", + ] + ) + _import_structure["modular_pipelines"].extend( + [ + "ComponentsManager", + "ComponentSpec", + "ModularPipeline", + "ModularPipelineBlocks", + ] + ) + _import_structure["optimization"] = [ + "get_constant_schedule", + "get_constant_schedule_with_warmup", + "get_cosine_schedule_with_warmup", + "get_cosine_with_hard_restarts_schedule_with_warmup", + "get_linear_schedule_with_warmup", + "get_polynomial_decay_schedule_with_warmup", + "get_scheduler", + ] + _import_structure["pipelines"].extend( + [ + "AudioPipelineOutput", + "AutoPipelineForImage2Image", + "AutoPipelineForInpainting", + "AutoPipelineForText2Image", + "ConsistencyModelPipeline", + "DanceDiffusionPipeline", + "DDIMPipeline", + "DDPMPipeline", + "DiffusionPipeline", + "DiTPipeline", + "ImagePipelineOutput", + "KarrasVePipeline", + "LDMPipeline", + "LDMSuperResolutionPipeline", + "PNDMPipeline", + "RePaintPipeline", + "ScoreSdeVePipeline", + "StableDiffusionMixin", + ] + ) + _import_structure["quantizers"] = ["DiffusersQuantizer"] + _import_structure["schedulers"].extend( + [ + "AmusedScheduler", + "CMStochasticIterativeScheduler", + "CogVideoXDDIMScheduler", + "CogVideoXDPMScheduler", + "DDIMInverseScheduler", + "DDIMParallelScheduler", + "DDIMScheduler", + "DDPMParallelScheduler", + "DDPMScheduler", + "DDPMWuerstchenScheduler", + "DEISMultistepScheduler", + "DPMSolverMultistepInverseScheduler", + "DPMSolverMultistepScheduler", + "DPMSolverSinglestepScheduler", + "EDMDPMSolverMultistepScheduler", + "EDMEulerScheduler", + "EulerAncestralDiscreteScheduler", + "EulerDiscreteScheduler", + "FlowMatchEulerDiscreteScheduler", + "FlowMatchHeunDiscreteScheduler", + "FlowMatchLCMScheduler", + "HeunDiscreteScheduler", + "IPNDMScheduler", + "KarrasVeScheduler", + "KDPM2AncestralDiscreteScheduler", + "KDPM2DiscreteScheduler", + "LCMScheduler", + "PNDMScheduler", + "RePaintScheduler", + "SASolverScheduler", + "SchedulerMixin", + "SCMScheduler", + "ScoreSdeVeScheduler", + "TCDScheduler", + "UnCLIPScheduler", + "UniPCMultistepScheduler", + "VQDiffusionScheduler", + ] + ) + _import_structure["training_utils"] = ["EMAModel"] + +try: + if not (is_torch_available() and is_scipy_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torch_and_scipy_objects # noqa F403 + + _import_structure["utils.dummy_torch_and_scipy_objects"] = [ + name for name in dir(dummy_torch_and_scipy_objects) if not name.startswith("_") + ] + +else: + _import_structure["schedulers"].extend(["LMSDiscreteScheduler"]) + +try: + if not (is_torch_available() and is_torchsde_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torch_and_torchsde_objects # noqa F403 + + _import_structure["utils.dummy_torch_and_torchsde_objects"] = [ + name for name in dir(dummy_torch_and_torchsde_objects) if not name.startswith("_") + ] + +else: + _import_structure["schedulers"].extend(["CosineDPMSolverMultistepScheduler", "DPMSolverSDEScheduler"]) + +try: + if not (is_torch_available() and is_transformers_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torch_and_transformers_objects # noqa F403 + + _import_structure["utils.dummy_torch_and_transformers_objects"] = [ + name for name in dir(dummy_torch_and_transformers_objects) if not name.startswith("_") + ] + +else: + _import_structure["modular_pipelines"].extend( + [ + "FluxAutoBlocks", + "FluxKontextAutoBlocks", + "FluxKontextModularPipeline", + "FluxModularPipeline", + "QwenImageAutoBlocks", + "QwenImageEditAutoBlocks", + "QwenImageEditModularPipeline", + "QwenImageEditPlusAutoBlocks", + "QwenImageEditPlusModularPipeline", + "QwenImageModularPipeline", + "StableDiffusionXLAutoBlocks", + "StableDiffusionXLModularPipeline", + "Wan22AutoBlocks", + "WanAutoBlocks", + "WanModularPipeline", + ] + ) + _import_structure["pipelines"].extend( + [ + "AllegroPipeline", + "AltDiffusionImg2ImgPipeline", + "AltDiffusionPipeline", + "AmusedImg2ImgPipeline", + "AmusedInpaintPipeline", + "AmusedPipeline", + "AnimateDiffControlNetPipeline", + "AnimateDiffPAGPipeline", + "AnimateDiffPipeline", + "AnimateDiffSDXLPipeline", + "AnimateDiffSparseControlNetPipeline", + "AnimateDiffVideoToVideoControlNetPipeline", + "AnimateDiffVideoToVideoPipeline", + "AudioLDM2Pipeline", + "AudioLDM2ProjectionModel", + "AudioLDM2UNet2DConditionModel", + "AudioLDMPipeline", + "AuraFlowPipeline", + "BlipDiffusionControlNetPipeline", + "BlipDiffusionPipeline", + "BriaFiboPipeline", + "BriaPipeline", + "ChromaImg2ImgPipeline", + "ChromaPipeline", + "ChronoEditPipeline", + "CLIPImageProjection", + "CogVideoXFunControlPipeline", + "CogVideoXImageToVideoPipeline", + "CogVideoXPipeline", + "CogVideoXVideoToVideoPipeline", + "CogView3PlusPipeline", + "CogView4ControlPipeline", + "CogView4Pipeline", + "ConsisIDPipeline", + "Cosmos2TextToImagePipeline", + "Cosmos2VideoToWorldPipeline", + "CosmosTextToWorldPipeline", + "CosmosVideoToWorldPipeline", + "CycleDiffusionPipeline", + "EasyAnimateControlPipeline", + "EasyAnimateInpaintPipeline", + "EasyAnimatePipeline", + "FluxControlImg2ImgPipeline", + "FluxControlInpaintPipeline", + "FluxControlNetImg2ImgPipeline", + "FluxControlNetInpaintPipeline", + "FluxControlNetPipeline", + "FluxControlPipeline", + "FluxFillPipeline", + "FluxImg2ImgPipeline", + "FluxInpaintPipeline", + "FluxKontextInpaintPipeline", + "FluxKontextPipeline", + "FluxPipeline", + "FluxPriorReduxPipeline", + "HiDreamImagePipeline", + "HunyuanDiTControlNetPipeline", + "HunyuanDiTPAGPipeline", + "HunyuanDiTPipeline", + "HunyuanImagePipeline", + "HunyuanImageRefinerPipeline", + "HunyuanSkyreelsImageToVideoPipeline", + "HunyuanVideoFramepackPipeline", + "HunyuanVideoImageToVideoPipeline", + "HunyuanVideoPipeline", + "I2VGenXLPipeline", + "IFImg2ImgPipeline", + "IFImg2ImgSuperResolutionPipeline", + "IFInpaintingPipeline", + "IFInpaintingSuperResolutionPipeline", + "IFPipeline", + "IFSuperResolutionPipeline", + "ImageTextPipelineOutput", + "Kandinsky3Img2ImgPipeline", + "Kandinsky3Pipeline", + "Kandinsky5T2VPipeline", + "KandinskyCombinedPipeline", + "KandinskyImg2ImgCombinedPipeline", + "KandinskyImg2ImgPipeline", + "KandinskyInpaintCombinedPipeline", + "KandinskyInpaintPipeline", + "KandinskyPipeline", + "KandinskyPriorPipeline", + "KandinskyV22CombinedPipeline", + "KandinskyV22ControlnetImg2ImgPipeline", + "KandinskyV22ControlnetPipeline", + "KandinskyV22Img2ImgCombinedPipeline", + "KandinskyV22Img2ImgPipeline", + "KandinskyV22InpaintCombinedPipeline", + "KandinskyV22InpaintPipeline", + "KandinskyV22Pipeline", + "KandinskyV22PriorEmb2EmbPipeline", + "KandinskyV22PriorPipeline", + "LatentConsistencyModelImg2ImgPipeline", + "LatentConsistencyModelPipeline", + "LattePipeline", + "LDMTextToImagePipeline", + "LEditsPPPipelineStableDiffusion", + "LEditsPPPipelineStableDiffusionXL", + "LTXConditionPipeline", + "LTXImageToVideoPipeline", + "LTXLatentUpsamplePipeline", + "LTXPipeline", + "LucyEditPipeline", + "Lumina2Pipeline", + "Lumina2Text2ImgPipeline", + "LuminaPipeline", + "LuminaText2ImgPipeline", + "MarigoldDepthPipeline", + "MarigoldIntrinsicsPipeline", + "MarigoldNormalsPipeline", + "MochiPipeline", + "MusicLDMPipeline", + "OmniGenPipeline", + "PaintByExamplePipeline", + "PIAPipeline", + "PixArtAlphaPipeline", + "PixArtSigmaPAGPipeline", + "PixArtSigmaPipeline", + "PRXPipeline", + "QwenImageControlNetInpaintPipeline", + "QwenImageControlNetPipeline", + "QwenImageEditInpaintPipeline", + "QwenImageEditPipeline", + "QwenImageEditPlusPipeline", + "QwenImageImg2ImgPipeline", + "QwenImageInpaintPipeline", + "QwenImagePipeline", + "ReduxImageEncoder", + "SanaControlNetPipeline", + "SanaImageToVideoPipeline", + "SanaPAGPipeline", + "SanaPipeline", + "SanaSprintImg2ImgPipeline", + "SanaSprintPipeline", + "SanaVideoPipeline", + "SanaVideoPipeline", + "SemanticStableDiffusionPipeline", + "ShapEImg2ImgPipeline", + "ShapEPipeline", + "SkyReelsV2DiffusionForcingImageToVideoPipeline", + "SkyReelsV2DiffusionForcingPipeline", + "SkyReelsV2DiffusionForcingVideoToVideoPipeline", + "SkyReelsV2ImageToVideoPipeline", + "SkyReelsV2Pipeline", + "StableAudioPipeline", + "StableAudioProjectionModel", + "StableCascadeCombinedPipeline", + "StableCascadeDecoderPipeline", + "StableCascadePriorPipeline", + "StableDiffusion3ControlNetInpaintingPipeline", + "StableDiffusion3ControlNetPipeline", + "StableDiffusion3Img2ImgPipeline", + "StableDiffusion3InpaintPipeline", + "StableDiffusion3PAGImg2ImgPipeline", + "StableDiffusion3PAGImg2ImgPipeline", + "StableDiffusion3PAGPipeline", + "StableDiffusion3Pipeline", + "StableDiffusionAdapterPipeline", + "StableDiffusionAttendAndExcitePipeline", + "StableDiffusionControlNetImg2ImgPipeline", + "StableDiffusionControlNetInpaintPipeline", + "StableDiffusionControlNetPAGInpaintPipeline", + "StableDiffusionControlNetPAGPipeline", + "StableDiffusionControlNetPipeline", + "StableDiffusionControlNetXSPipeline", + "StableDiffusionDepth2ImgPipeline", + "StableDiffusionDiffEditPipeline", + "StableDiffusionGLIGENPipeline", + "StableDiffusionGLIGENTextImagePipeline", + "StableDiffusionImageVariationPipeline", + "StableDiffusionImg2ImgPipeline", + "StableDiffusionInpaintPipeline", + "StableDiffusionInpaintPipelineLegacy", + "StableDiffusionInstructPix2PixPipeline", + "StableDiffusionLatentUpscalePipeline", + "StableDiffusionLDM3DPipeline", + "StableDiffusionModelEditingPipeline", + "StableDiffusionPAGImg2ImgPipeline", + "StableDiffusionPAGInpaintPipeline", + "StableDiffusionPAGPipeline", + "StableDiffusionPanoramaPipeline", + "StableDiffusionParadigmsPipeline", + "StableDiffusionPipeline", + "StableDiffusionPipelineSafe", + "StableDiffusionPix2PixZeroPipeline", + "StableDiffusionSAGPipeline", + "StableDiffusionUpscalePipeline", + "StableDiffusionXLAdapterPipeline", + "StableDiffusionXLControlNetImg2ImgPipeline", + "StableDiffusionXLControlNetInpaintPipeline", + "StableDiffusionXLControlNetPAGImg2ImgPipeline", + "StableDiffusionXLControlNetPAGPipeline", + "StableDiffusionXLControlNetPipeline", + "StableDiffusionXLControlNetUnionImg2ImgPipeline", + "StableDiffusionXLControlNetUnionInpaintPipeline", + "StableDiffusionXLControlNetUnionPipeline", + "StableDiffusionXLControlNetXSPipeline", + "StableDiffusionXLImg2ImgPipeline", + "StableDiffusionXLInpaintPipeline", + "StableDiffusionXLInstructPix2PixPipeline", + "StableDiffusionXLPAGImg2ImgPipeline", + "StableDiffusionXLPAGInpaintPipeline", + "StableDiffusionXLPAGPipeline", + "StableDiffusionXLPipeline", + "StableUnCLIPImg2ImgPipeline", + "StableUnCLIPPipeline", + "StableVideoDiffusionPipeline", + "TextToVideoSDPipeline", + "TextToVideoZeroPipeline", + "TextToVideoZeroSDXLPipeline", + "UnCLIPImageVariationPipeline", + "UnCLIPPipeline", + "UniDiffuserModel", + "UniDiffuserPipeline", + "UniDiffuserTextDecoder", + "VersatileDiffusionDualGuidedPipeline", + "VersatileDiffusionImageVariationPipeline", + "VersatileDiffusionPipeline", + "VersatileDiffusionTextToImagePipeline", + "VideoToVideoSDPipeline", + "VisualClozeGenerationPipeline", + "VisualClozePipeline", + "VQDiffusionPipeline", + "WanAnimatePipeline", + "WanImageToVideoPipeline", + "WanPipeline", + "WanVACEPipeline", + "WanVideoToVideoPipeline", + "WuerstchenCombinedPipeline", + "WuerstchenDecoderPipeline", + "WuerstchenPriorPipeline", + "ZImagePipeline", + ] + ) + + +try: + if not (is_torch_available() and is_transformers_available() and is_opencv_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torch_and_transformers_and_opencv_objects # noqa F403 + + _import_structure["utils.dummy_torch_and_transformers_and_opencv_objects"] = [ + name for name in dir(dummy_torch_and_transformers_and_opencv_objects) if not name.startswith("_") + ] + +else: + _import_structure["pipelines"].extend(["ConsisIDPipeline"]) + +try: + if not (is_torch_available() and is_transformers_available() and is_k_diffusion_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torch_and_transformers_and_k_diffusion_objects # noqa F403 + + _import_structure["utils.dummy_torch_and_transformers_and_k_diffusion_objects"] = [ + name for name in dir(dummy_torch_and_transformers_and_k_diffusion_objects) if not name.startswith("_") + ] + +else: + _import_structure["pipelines"].extend(["StableDiffusionKDiffusionPipeline", "StableDiffusionXLKDiffusionPipeline"]) + +try: + if not (is_torch_available() and is_transformers_available() and is_sentencepiece_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torch_and_transformers_and_sentencepiece_objects # noqa F403 + + _import_structure["utils.dummy_torch_and_transformers_and_sentencepiece_objects"] = [ + name for name in dir(dummy_torch_and_transformers_and_sentencepiece_objects) if not name.startswith("_") + ] + +else: + _import_structure["pipelines"].extend(["KolorsImg2ImgPipeline", "KolorsPAGPipeline", "KolorsPipeline"]) + +try: + if not (is_torch_available() and is_transformers_available() and is_onnx_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torch_and_transformers_and_onnx_objects # noqa F403 + + _import_structure["utils.dummy_torch_and_transformers_and_onnx_objects"] = [ + name for name in dir(dummy_torch_and_transformers_and_onnx_objects) if not name.startswith("_") + ] + +else: + _import_structure["pipelines"].extend( + [ + "OnnxStableDiffusionImg2ImgPipeline", + "OnnxStableDiffusionInpaintPipeline", + "OnnxStableDiffusionInpaintPipelineLegacy", + "OnnxStableDiffusionPipeline", + "OnnxStableDiffusionUpscalePipeline", + "StableDiffusionOnnxPipeline", + ] + ) + +try: + if not (is_torch_available() and is_librosa_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_torch_and_librosa_objects # noqa F403 + + _import_structure["utils.dummy_torch_and_librosa_objects"] = [ + name for name in dir(dummy_torch_and_librosa_objects) if not name.startswith("_") + ] + +else: + _import_structure["pipelines"].extend(["AudioDiffusionPipeline", "Mel"]) + +try: + if not (is_transformers_available() and is_torch_available() and is_note_seq_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_transformers_and_torch_and_note_seq_objects # noqa F403 + + _import_structure["utils.dummy_transformers_and_torch_and_note_seq_objects"] = [ + name for name in dir(dummy_transformers_and_torch_and_note_seq_objects) if not name.startswith("_") + ] + + +else: + _import_structure["pipelines"].extend(["SpectrogramDiffusionPipeline"]) + +try: + if not is_flax_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_flax_objects # noqa F403 + + _import_structure["utils.dummy_flax_objects"] = [ + name for name in dir(dummy_flax_objects) if not name.startswith("_") + ] + + +else: + _import_structure["models.controlnets.controlnet_flax"] = ["FlaxControlNetModel"] + _import_structure["models.modeling_flax_utils"] = ["FlaxModelMixin"] + _import_structure["models.unets.unet_2d_condition_flax"] = ["FlaxUNet2DConditionModel"] + _import_structure["models.vae_flax"] = ["FlaxAutoencoderKL"] + _import_structure["pipelines"].extend(["FlaxDiffusionPipeline"]) + _import_structure["schedulers"].extend( + [ + "FlaxDDIMScheduler", + "FlaxDDPMScheduler", + "FlaxDPMSolverMultistepScheduler", + "FlaxEulerDiscreteScheduler", + "FlaxKarrasVeScheduler", + "FlaxLMSDiscreteScheduler", + "FlaxPNDMScheduler", + "FlaxSchedulerMixin", + "FlaxScoreSdeVeScheduler", + ] + ) + + +try: + if not (is_flax_available() and is_transformers_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_flax_and_transformers_objects # noqa F403 + + _import_structure["utils.dummy_flax_and_transformers_objects"] = [ + name for name in dir(dummy_flax_and_transformers_objects) if not name.startswith("_") + ] + + +else: + _import_structure["pipelines"].extend( + [ + "FlaxStableDiffusionControlNetPipeline", + "FlaxStableDiffusionImg2ImgPipeline", + "FlaxStableDiffusionInpaintPipeline", + "FlaxStableDiffusionPipeline", + "FlaxStableDiffusionXLPipeline", + ] + ) + +try: + if not (is_note_seq_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from .utils import dummy_note_seq_objects # noqa F403 + + _import_structure["utils.dummy_note_seq_objects"] = [ + name for name in dir(dummy_note_seq_objects) if not name.startswith("_") + ] + + +else: + _import_structure["pipelines"].extend(["MidiProcessor"]) + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + from .configuration_utils import ConfigMixin + from .quantizers import PipelineQuantizationConfig + + try: + if not is_bitsandbytes_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_bitsandbytes_objects import * + else: + from .quantizers.quantization_config import BitsAndBytesConfig + + try: + if not is_gguf_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_gguf_objects import * + else: + from .quantizers.quantization_config import GGUFQuantizationConfig + + try: + if not is_torchao_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torchao_objects import * + else: + from .quantizers.quantization_config import TorchAoConfig + + try: + if not is_optimum_quanto_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_optimum_quanto_objects import * + else: + from .quantizers.quantization_config import QuantoConfig + + try: + if not is_nvidia_modelopt_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_nvidia_modelopt_objects import * + else: + from .quantizers.quantization_config import NVIDIAModelOptConfig + + try: + if not is_onnx_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_onnx_objects import * # noqa F403 + else: + from .pipelines import OnnxRuntimeModel + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_pt_objects import * # noqa F403 + else: + from .guiders import ( + AdaptiveProjectedGuidance, + AdaptiveProjectedMixGuidance, + AutoGuidance, + BaseGuidance, + ClassifierFreeGuidance, + ClassifierFreeZeroStarGuidance, + FrequencyDecoupledGuidance, + PerturbedAttentionGuidance, + SkipLayerGuidance, + SmoothedEnergyGuidance, + TangentialClassifierFreeGuidance, + ) + from .hooks import ( + FasterCacheConfig, + FirstBlockCacheConfig, + HookRegistry, + LayerSkipConfig, + PyramidAttentionBroadcastConfig, + SmoothedEnergyGuidanceConfig, + apply_faster_cache, + apply_first_block_cache, + apply_layer_skip, + apply_pyramid_attention_broadcast, + ) + from .models import ( + AllegroTransformer3DModel, + AsymmetricAutoencoderKL, + AttentionBackendName, + AuraFlowTransformer2DModel, + AutoencoderDC, + AutoencoderKL, + AutoencoderKLAllegro, + AutoencoderKLCogVideoX, + AutoencoderKLCosmos, + AutoencoderKLHunyuanImage, + AutoencoderKLHunyuanImageRefiner, + AutoencoderKLHunyuanVideo, + AutoencoderKLLTXVideo, + AutoencoderKLMagvit, + AutoencoderKLMochi, + AutoencoderKLQwenImage, + AutoencoderKLTemporalDecoder, + AutoencoderKLWan, + AutoencoderOobleck, + AutoencoderTiny, + AutoModel, + BriaFiboTransformer2DModel, + BriaTransformer2DModel, + CacheMixin, + ChromaTransformer2DModel, + ChronoEditTransformer3DModel, + CogVideoXTransformer3DModel, + CogView3PlusTransformer2DModel, + CogView4Transformer2DModel, + ConsisIDTransformer3DModel, + ConsistencyDecoderVAE, + ContextParallelConfig, + ControlNetModel, + ControlNetUnionModel, + ControlNetXSAdapter, + CosmosTransformer3DModel, + DiTTransformer2DModel, + EasyAnimateTransformer3DModel, + FluxControlNetModel, + FluxMultiControlNetModel, + FluxTransformer2DModel, + HiDreamImageTransformer2DModel, + HunyuanDiT2DControlNetModel, + HunyuanDiT2DModel, + HunyuanDiT2DMultiControlNetModel, + HunyuanImageTransformer2DModel, + HunyuanVideoFramepackTransformer3DModel, + HunyuanVideoTransformer3DModel, + I2VGenXLUNet, + Kandinsky3UNet, + Kandinsky5Transformer3DModel, + LatteTransformer3DModel, + LTXVideoTransformer3DModel, + Lumina2Transformer2DModel, + LuminaNextDiT2DModel, + MochiTransformer3DModel, + ModelMixin, + MotionAdapter, + MultiAdapter, + MultiControlNetModel, + OmniGenTransformer2DModel, + ParallelConfig, + PixArtTransformer2DModel, + PriorTransformer, + PRXTransformer2DModel, + QwenImageControlNetModel, + QwenImageMultiControlNetModel, + QwenImageTransformer2DModel, + SanaControlNetModel, + SanaTransformer2DModel, + SanaVideoTransformer3DModel, + SD3ControlNetModel, + SD3MultiControlNetModel, + SD3Transformer2DModel, + SkyReelsV2Transformer3DModel, + SparseControlNetModel, + StableAudioDiTModel, + T2IAdapter, + T5FilmDecoder, + Transformer2DModel, + TransformerTemporalModel, + UNet1DModel, + UNet2DConditionModel, + UNet2DModel, + UNet3DConditionModel, + UNetControlNetXSModel, + UNetMotionModel, + UNetSpatioTemporalConditionModel, + UVit2DModel, + VQModel, + WanAnimateTransformer3DModel, + WanTransformer3DModel, + WanVACETransformer3DModel, + attention_backend, + ) + from .modular_pipelines import ComponentsManager, ComponentSpec, ModularPipeline, ModularPipelineBlocks + from .optimization import ( + get_constant_schedule, + get_constant_schedule_with_warmup, + get_cosine_schedule_with_warmup, + get_cosine_with_hard_restarts_schedule_with_warmup, + get_linear_schedule_with_warmup, + get_polynomial_decay_schedule_with_warmup, + get_scheduler, + ) + from .pipelines import ( + AudioPipelineOutput, + AutoPipelineForImage2Image, + AutoPipelineForInpainting, + AutoPipelineForText2Image, + BlipDiffusionControlNetPipeline, + BlipDiffusionPipeline, + CLIPImageProjection, + ConsistencyModelPipeline, + DanceDiffusionPipeline, + DDIMPipeline, + DDPMPipeline, + DiffusionPipeline, + DiTPipeline, + ImagePipelineOutput, + KarrasVePipeline, + LDMPipeline, + LDMSuperResolutionPipeline, + PNDMPipeline, + RePaintPipeline, + ScoreSdeVePipeline, + StableDiffusionMixin, + ) + from .quantizers import DiffusersQuantizer + from .schedulers import ( + AmusedScheduler, + CMStochasticIterativeScheduler, + CogVideoXDDIMScheduler, + CogVideoXDPMScheduler, + DDIMInverseScheduler, + DDIMParallelScheduler, + DDIMScheduler, + DDPMParallelScheduler, + DDPMScheduler, + DDPMWuerstchenScheduler, + DEISMultistepScheduler, + DPMSolverMultistepInverseScheduler, + DPMSolverMultistepScheduler, + DPMSolverSinglestepScheduler, + EDMDPMSolverMultistepScheduler, + EDMEulerScheduler, + EulerAncestralDiscreteScheduler, + EulerDiscreteScheduler, + FlowMatchEulerDiscreteScheduler, + FlowMatchHeunDiscreteScheduler, + FlowMatchLCMScheduler, + HeunDiscreteScheduler, + IPNDMScheduler, + KarrasVeScheduler, + KDPM2AncestralDiscreteScheduler, + KDPM2DiscreteScheduler, + LCMScheduler, + PNDMScheduler, + RePaintScheduler, + SASolverScheduler, + SchedulerMixin, + SCMScheduler, + ScoreSdeVeScheduler, + TCDScheduler, + UnCLIPScheduler, + UniPCMultistepScheduler, + VQDiffusionScheduler, + ) + from .training_utils import EMAModel + + try: + if not (is_torch_available() and is_scipy_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torch_and_scipy_objects import * # noqa F403 + else: + from .schedulers import LMSDiscreteScheduler + + try: + if not (is_torch_available() and is_torchsde_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torch_and_torchsde_objects import * # noqa F403 + else: + from .schedulers import CosineDPMSolverMultistepScheduler, DPMSolverSDEScheduler + + try: + if not (is_torch_available() and is_transformers_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torch_and_transformers_objects import * # noqa F403 + else: + from .modular_pipelines import ( + FluxAutoBlocks, + FluxKontextAutoBlocks, + FluxKontextModularPipeline, + FluxModularPipeline, + QwenImageAutoBlocks, + QwenImageEditAutoBlocks, + QwenImageEditModularPipeline, + QwenImageEditPlusAutoBlocks, + QwenImageEditPlusModularPipeline, + QwenImageModularPipeline, + StableDiffusionXLAutoBlocks, + StableDiffusionXLModularPipeline, + Wan22AutoBlocks, + WanAutoBlocks, + WanModularPipeline, + ) + from .pipelines import ( + AllegroPipeline, + AltDiffusionImg2ImgPipeline, + AltDiffusionPipeline, + AmusedImg2ImgPipeline, + AmusedInpaintPipeline, + AmusedPipeline, + AnimateDiffControlNetPipeline, + AnimateDiffPAGPipeline, + AnimateDiffPipeline, + AnimateDiffSDXLPipeline, + AnimateDiffSparseControlNetPipeline, + AnimateDiffVideoToVideoControlNetPipeline, + AnimateDiffVideoToVideoPipeline, + AudioLDM2Pipeline, + AudioLDM2ProjectionModel, + AudioLDM2UNet2DConditionModel, + AudioLDMPipeline, + AuraFlowPipeline, + BriaFiboPipeline, + BriaPipeline, + ChromaImg2ImgPipeline, + ChromaPipeline, + ChronoEditPipeline, + CLIPImageProjection, + CogVideoXFunControlPipeline, + CogVideoXImageToVideoPipeline, + CogVideoXPipeline, + CogVideoXVideoToVideoPipeline, + CogView3PlusPipeline, + CogView4ControlPipeline, + CogView4Pipeline, + ConsisIDPipeline, + Cosmos2TextToImagePipeline, + Cosmos2VideoToWorldPipeline, + CosmosTextToWorldPipeline, + CosmosVideoToWorldPipeline, + CycleDiffusionPipeline, + EasyAnimateControlPipeline, + EasyAnimateInpaintPipeline, + EasyAnimatePipeline, + FluxControlImg2ImgPipeline, + FluxControlInpaintPipeline, + FluxControlNetImg2ImgPipeline, + FluxControlNetInpaintPipeline, + FluxControlNetPipeline, + FluxControlPipeline, + FluxFillPipeline, + FluxImg2ImgPipeline, + FluxInpaintPipeline, + FluxKontextInpaintPipeline, + FluxKontextPipeline, + FluxPipeline, + FluxPriorReduxPipeline, + HiDreamImagePipeline, + HunyuanDiTControlNetPipeline, + HunyuanDiTPAGPipeline, + HunyuanDiTPipeline, + HunyuanImagePipeline, + HunyuanImageRefinerPipeline, + HunyuanSkyreelsImageToVideoPipeline, + HunyuanVideoFramepackPipeline, + HunyuanVideoImageToVideoPipeline, + HunyuanVideoPipeline, + I2VGenXLPipeline, + IFImg2ImgPipeline, + IFImg2ImgSuperResolutionPipeline, + IFInpaintingPipeline, + IFInpaintingSuperResolutionPipeline, + IFPipeline, + IFSuperResolutionPipeline, + ImageTextPipelineOutput, + Kandinsky3Img2ImgPipeline, + Kandinsky3Pipeline, + Kandinsky5T2VPipeline, + KandinskyCombinedPipeline, + KandinskyImg2ImgCombinedPipeline, + KandinskyImg2ImgPipeline, + KandinskyInpaintCombinedPipeline, + KandinskyInpaintPipeline, + KandinskyPipeline, + KandinskyPriorPipeline, + KandinskyV22CombinedPipeline, + KandinskyV22ControlnetImg2ImgPipeline, + KandinskyV22ControlnetPipeline, + KandinskyV22Img2ImgCombinedPipeline, + KandinskyV22Img2ImgPipeline, + KandinskyV22InpaintCombinedPipeline, + KandinskyV22InpaintPipeline, + KandinskyV22Pipeline, + KandinskyV22PriorEmb2EmbPipeline, + KandinskyV22PriorPipeline, + LatentConsistencyModelImg2ImgPipeline, + LatentConsistencyModelPipeline, + LattePipeline, + LDMTextToImagePipeline, + LEditsPPPipelineStableDiffusion, + LEditsPPPipelineStableDiffusionXL, + LTXConditionPipeline, + LTXImageToVideoPipeline, + LTXLatentUpsamplePipeline, + LTXPipeline, + LucyEditPipeline, + Lumina2Pipeline, + Lumina2Text2ImgPipeline, + LuminaPipeline, + LuminaText2ImgPipeline, + MarigoldDepthPipeline, + MarigoldIntrinsicsPipeline, + MarigoldNormalsPipeline, + MochiPipeline, + MusicLDMPipeline, + OmniGenPipeline, + PaintByExamplePipeline, + PIAPipeline, + PixArtAlphaPipeline, + PixArtSigmaPAGPipeline, + PixArtSigmaPipeline, + PRXPipeline, + QwenImageControlNetInpaintPipeline, + QwenImageControlNetPipeline, + QwenImageEditInpaintPipeline, + QwenImageEditPipeline, + QwenImageEditPlusPipeline, + QwenImageImg2ImgPipeline, + QwenImageInpaintPipeline, + QwenImagePipeline, + ReduxImageEncoder, + SanaControlNetPipeline, + SanaImageToVideoPipeline, + SanaPAGPipeline, + SanaPipeline, + SanaSprintImg2ImgPipeline, + SanaSprintPipeline, + SanaVideoPipeline, + SemanticStableDiffusionPipeline, + ShapEImg2ImgPipeline, + ShapEPipeline, + SkyReelsV2DiffusionForcingImageToVideoPipeline, + SkyReelsV2DiffusionForcingPipeline, + SkyReelsV2DiffusionForcingVideoToVideoPipeline, + SkyReelsV2ImageToVideoPipeline, + SkyReelsV2Pipeline, + StableAudioPipeline, + StableAudioProjectionModel, + StableCascadeCombinedPipeline, + StableCascadeDecoderPipeline, + StableCascadePriorPipeline, + StableDiffusion3ControlNetInpaintingPipeline, + StableDiffusion3ControlNetPipeline, + StableDiffusion3Img2ImgPipeline, + StableDiffusion3InpaintPipeline, + StableDiffusion3PAGImg2ImgPipeline, + StableDiffusion3PAGPipeline, + StableDiffusion3Pipeline, + StableDiffusionAdapterPipeline, + StableDiffusionAttendAndExcitePipeline, + StableDiffusionControlNetImg2ImgPipeline, + StableDiffusionControlNetInpaintPipeline, + StableDiffusionControlNetPAGInpaintPipeline, + StableDiffusionControlNetPAGPipeline, + StableDiffusionControlNetPipeline, + StableDiffusionControlNetXSPipeline, + StableDiffusionDepth2ImgPipeline, + StableDiffusionDiffEditPipeline, + StableDiffusionGLIGENPipeline, + StableDiffusionGLIGENTextImagePipeline, + StableDiffusionImageVariationPipeline, + StableDiffusionImg2ImgPipeline, + StableDiffusionInpaintPipeline, + StableDiffusionInpaintPipelineLegacy, + StableDiffusionInstructPix2PixPipeline, + StableDiffusionLatentUpscalePipeline, + StableDiffusionLDM3DPipeline, + StableDiffusionModelEditingPipeline, + StableDiffusionPAGImg2ImgPipeline, + StableDiffusionPAGInpaintPipeline, + StableDiffusionPAGPipeline, + StableDiffusionPanoramaPipeline, + StableDiffusionParadigmsPipeline, + StableDiffusionPipeline, + StableDiffusionPipelineSafe, + StableDiffusionPix2PixZeroPipeline, + StableDiffusionSAGPipeline, + StableDiffusionUpscalePipeline, + StableDiffusionXLAdapterPipeline, + StableDiffusionXLControlNetImg2ImgPipeline, + StableDiffusionXLControlNetInpaintPipeline, + StableDiffusionXLControlNetPAGImg2ImgPipeline, + StableDiffusionXLControlNetPAGPipeline, + StableDiffusionXLControlNetPipeline, + StableDiffusionXLControlNetUnionImg2ImgPipeline, + StableDiffusionXLControlNetUnionInpaintPipeline, + StableDiffusionXLControlNetUnionPipeline, + StableDiffusionXLControlNetXSPipeline, + StableDiffusionXLImg2ImgPipeline, + StableDiffusionXLInpaintPipeline, + StableDiffusionXLInstructPix2PixPipeline, + StableDiffusionXLPAGImg2ImgPipeline, + StableDiffusionXLPAGInpaintPipeline, + StableDiffusionXLPAGPipeline, + StableDiffusionXLPipeline, + StableUnCLIPImg2ImgPipeline, + StableUnCLIPPipeline, + StableVideoDiffusionPipeline, + TextToVideoSDPipeline, + TextToVideoZeroPipeline, + TextToVideoZeroSDXLPipeline, + UnCLIPImageVariationPipeline, + UnCLIPPipeline, + UniDiffuserModel, + UniDiffuserPipeline, + UniDiffuserTextDecoder, + VersatileDiffusionDualGuidedPipeline, + VersatileDiffusionImageVariationPipeline, + VersatileDiffusionPipeline, + VersatileDiffusionTextToImagePipeline, + VideoToVideoSDPipeline, + VisualClozeGenerationPipeline, + VisualClozePipeline, + VQDiffusionPipeline, + WanAnimatePipeline, + WanImageToVideoPipeline, + WanPipeline, + WanVACEPipeline, + WanVideoToVideoPipeline, + WuerstchenCombinedPipeline, + WuerstchenDecoderPipeline, + WuerstchenPriorPipeline, + ZImagePipeline, + ) + + try: + if not (is_torch_available() and is_transformers_available() and is_k_diffusion_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torch_and_transformers_and_k_diffusion_objects import * # noqa F403 + else: + from .pipelines import StableDiffusionKDiffusionPipeline, StableDiffusionXLKDiffusionPipeline + + try: + if not (is_torch_available() and is_transformers_available() and is_sentencepiece_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torch_and_transformers_and_sentencepiece_objects import * # noqa F403 + else: + from .pipelines import KolorsImg2ImgPipeline, KolorsPAGPipeline, KolorsPipeline + + try: + if not (is_torch_available() and is_transformers_available() and is_opencv_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torch_and_transformers_and_opencv_objects import * # noqa F403 + else: + from .pipelines import ConsisIDPipeline + + try: + if not (is_torch_available() and is_transformers_available() and is_onnx_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torch_and_transformers_and_onnx_objects import * # noqa F403 + else: + from .pipelines import ( + OnnxStableDiffusionImg2ImgPipeline, + OnnxStableDiffusionInpaintPipeline, + OnnxStableDiffusionInpaintPipelineLegacy, + OnnxStableDiffusionPipeline, + OnnxStableDiffusionUpscalePipeline, + StableDiffusionOnnxPipeline, + ) + + try: + if not (is_torch_available() and is_librosa_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_torch_and_librosa_objects import * # noqa F403 + else: + from .pipelines import AudioDiffusionPipeline, Mel + + try: + if not (is_transformers_available() and is_torch_available() and is_note_seq_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_transformers_and_torch_and_note_seq_objects import * # noqa F403 + else: + from .pipelines import SpectrogramDiffusionPipeline + + try: + if not is_flax_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_flax_objects import * # noqa F403 + else: + from .models.controlnets.controlnet_flax import FlaxControlNetModel + from .models.modeling_flax_utils import FlaxModelMixin + from .models.unets.unet_2d_condition_flax import FlaxUNet2DConditionModel + from .models.vae_flax import FlaxAutoencoderKL + from .pipelines import FlaxDiffusionPipeline + from .schedulers import ( + FlaxDDIMScheduler, + FlaxDDPMScheduler, + FlaxDPMSolverMultistepScheduler, + FlaxEulerDiscreteScheduler, + FlaxKarrasVeScheduler, + FlaxLMSDiscreteScheduler, + FlaxPNDMScheduler, + FlaxSchedulerMixin, + FlaxScoreSdeVeScheduler, + ) + + try: + if not (is_flax_available() and is_transformers_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_flax_and_transformers_objects import * # noqa F403 + else: + from .pipelines import ( + FlaxStableDiffusionControlNetPipeline, + FlaxStableDiffusionImg2ImgPipeline, + FlaxStableDiffusionInpaintPipeline, + FlaxStableDiffusionPipeline, + FlaxStableDiffusionXLPipeline, + ) + + try: + if not (is_note_seq_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from .utils.dummy_note_seq_objects import * # noqa F403 + else: + from .pipelines import MidiProcessor + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + extra_objects={"__version__": __version__}, + ) diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/hooks/_helpers.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/hooks/_helpers.py new file mode 100644 index 0000000000000000000000000000000000000000..da7313cb4737b2d5b93d0bf8db6bf9bf926695aa --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/hooks/_helpers.py @@ -0,0 +1,361 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from dataclasses import dataclass +from typing import Any, Callable, Dict, Type + + +@dataclass +class AttentionProcessorMetadata: + skip_processor_output_fn: Callable[[Any], Any] + + +@dataclass +class TransformerBlockMetadata: + return_hidden_states_index: int = None + return_encoder_hidden_states_index: int = None + + _cls: Type = None + _cached_parameter_indices: Dict[str, int] = None + + def _get_parameter_from_args_kwargs(self, identifier: str, args=(), kwargs=None): + kwargs = kwargs or {} + if identifier in kwargs: + return kwargs[identifier] + if self._cached_parameter_indices is not None: + return args[self._cached_parameter_indices[identifier]] + if self._cls is None: + raise ValueError("Model class is not set for metadata.") + parameters = list(inspect.signature(self._cls.forward).parameters.keys()) + parameters = parameters[1:] # skip `self` + self._cached_parameter_indices = {param: i for i, param in enumerate(parameters)} + if identifier not in self._cached_parameter_indices: + raise ValueError(f"Parameter '{identifier}' not found in function signature but was requested.") + index = self._cached_parameter_indices[identifier] + if index >= len(args): + raise ValueError(f"Expected {index} arguments but got {len(args)}.") + return args[index] + + +class AttentionProcessorRegistry: + _registry = {} + # TODO(aryan): this is only required for the time being because we need to do the registrations + # for classes. If we do it eagerly, i.e. call the functions in global scope, we will get circular + # import errors because of the models imported in this file. + _is_registered = False + + @classmethod + def register(cls, model_class: Type, metadata: AttentionProcessorMetadata): + cls._register() + cls._registry[model_class] = metadata + + @classmethod + def get(cls, model_class: Type) -> AttentionProcessorMetadata: + cls._register() + if model_class not in cls._registry: + raise ValueError(f"Model class {model_class} not registered.") + return cls._registry[model_class] + + @classmethod + def _register(cls): + if cls._is_registered: + return + cls._is_registered = True + _register_attention_processors_metadata() + + +class TransformerBlockRegistry: + _registry = {} + # TODO(aryan): this is only required for the time being because we need to do the registrations + # for classes. If we do it eagerly, i.e. call the functions in global scope, we will get circular + # import errors because of the models imported in this file. + _is_registered = False + + @classmethod + def register(cls, model_class: Type, metadata: TransformerBlockMetadata): + cls._register() + metadata._cls = model_class + cls._registry[model_class] = metadata + + @classmethod + def get(cls, model_class: Type) -> TransformerBlockMetadata: + cls._register() + if model_class not in cls._registry: + raise ValueError(f"Model class {model_class} not registered.") + return cls._registry[model_class] + + @classmethod + def _register(cls): + if cls._is_registered: + return + cls._is_registered = True + _register_transformer_blocks_metadata() + + +def _register_attention_processors_metadata(): + from ..models.attention_processor import AttnProcessor2_0 + from ..models.transformers.transformer_cogview4 import CogView4AttnProcessor + from ..models.transformers.transformer_flux import FluxAttnProcessor + from ..models.transformers.transformer_hunyuanimage import HunyuanImageAttnProcessor + from ..models.transformers.transformer_qwenimage import QwenDoubleStreamAttnProcessor2_0 + from ..models.transformers.transformer_wan import WanAttnProcessor2_0 + from ..models.transformers.transformer_z_image import ZSingleStreamAttnProcessor + + # AttnProcessor2_0 + AttentionProcessorRegistry.register( + model_class=AttnProcessor2_0, + metadata=AttentionProcessorMetadata( + skip_processor_output_fn=_skip_proc_output_fn_Attention_AttnProcessor2_0, + ), + ) + + # CogView4AttnProcessor + AttentionProcessorRegistry.register( + model_class=CogView4AttnProcessor, + metadata=AttentionProcessorMetadata( + skip_processor_output_fn=_skip_proc_output_fn_Attention_CogView4AttnProcessor, + ), + ) + + # WanAttnProcessor2_0 + AttentionProcessorRegistry.register( + model_class=WanAttnProcessor2_0, + metadata=AttentionProcessorMetadata( + skip_processor_output_fn=_skip_proc_output_fn_Attention_WanAttnProcessor2_0, + ), + ) + + # FluxAttnProcessor + AttentionProcessorRegistry.register( + model_class=FluxAttnProcessor, + metadata=AttentionProcessorMetadata(skip_processor_output_fn=_skip_proc_output_fn_Attention_FluxAttnProcessor), + ) + + # QwenDoubleStreamAttnProcessor2 + AttentionProcessorRegistry.register( + model_class=QwenDoubleStreamAttnProcessor2_0, + metadata=AttentionProcessorMetadata( + skip_processor_output_fn=_skip_proc_output_fn_Attention_QwenDoubleStreamAttnProcessor2_0 + ), + ) + + # HunyuanImageAttnProcessor + AttentionProcessorRegistry.register( + model_class=HunyuanImageAttnProcessor, + metadata=AttentionProcessorMetadata( + skip_processor_output_fn=_skip_proc_output_fn_Attention_HunyuanImageAttnProcessor, + ), + ) + + # ZSingleStreamAttnProcessor + AttentionProcessorRegistry.register( + model_class=ZSingleStreamAttnProcessor, + metadata=AttentionProcessorMetadata( + skip_processor_output_fn=_skip_proc_output_fn_Attention_ZSingleStreamAttnProcessor, + ), + ) + + +def _register_transformer_blocks_metadata(): + from ..models.attention import BasicTransformerBlock + from ..models.transformers.cogvideox_transformer_3d import CogVideoXBlock + from ..models.transformers.transformer_bria import BriaTransformerBlock + from ..models.transformers.transformer_cogview4 import CogView4TransformerBlock + from ..models.transformers.transformer_flux import FluxSingleTransformerBlock, FluxTransformerBlock + from ..models.transformers.transformer_hunyuan_video import ( + HunyuanVideoSingleTransformerBlock, + HunyuanVideoTokenReplaceSingleTransformerBlock, + HunyuanVideoTokenReplaceTransformerBlock, + HunyuanVideoTransformerBlock, + ) + from ..models.transformers.transformer_hunyuanimage import ( + HunyuanImageSingleTransformerBlock, + HunyuanImageTransformerBlock, + ) + from ..models.transformers.transformer_ltx import LTXVideoTransformerBlock + from ..models.transformers.transformer_mochi import MochiTransformerBlock + from ..models.transformers.transformer_qwenimage import QwenImageTransformerBlock + from ..models.transformers.transformer_wan import WanTransformerBlock + from ..models.transformers.transformer_z_image import ZImageTransformerBlock + + # BasicTransformerBlock + TransformerBlockRegistry.register( + model_class=BasicTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=None, + ), + ) + TransformerBlockRegistry.register( + model_class=BriaTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=None, + ), + ) + + # CogVideoX + TransformerBlockRegistry.register( + model_class=CogVideoXBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + + # CogView4 + TransformerBlockRegistry.register( + model_class=CogView4TransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + + # Flux + TransformerBlockRegistry.register( + model_class=FluxTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=1, + return_encoder_hidden_states_index=0, + ), + ) + TransformerBlockRegistry.register( + model_class=FluxSingleTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=1, + return_encoder_hidden_states_index=0, + ), + ) + + # HunyuanVideo + TransformerBlockRegistry.register( + model_class=HunyuanVideoTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + TransformerBlockRegistry.register( + model_class=HunyuanVideoSingleTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + TransformerBlockRegistry.register( + model_class=HunyuanVideoTokenReplaceTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + TransformerBlockRegistry.register( + model_class=HunyuanVideoTokenReplaceSingleTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + + # LTXVideo + TransformerBlockRegistry.register( + model_class=LTXVideoTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=None, + ), + ) + + # Mochi + TransformerBlockRegistry.register( + model_class=MochiTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + + # Wan + TransformerBlockRegistry.register( + model_class=WanTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=None, + ), + ) + + # QwenImage + TransformerBlockRegistry.register( + model_class=QwenImageTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=1, + return_encoder_hidden_states_index=0, + ), + ) + + # HunyuanImage2.1 + TransformerBlockRegistry.register( + model_class=HunyuanImageTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + TransformerBlockRegistry.register( + model_class=HunyuanImageSingleTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=1, + ), + ) + + # ZImage + TransformerBlockRegistry.register( + model_class=ZImageTransformerBlock, + metadata=TransformerBlockMetadata( + return_hidden_states_index=0, + return_encoder_hidden_states_index=None, + ), + ) + + +# fmt: off +def _skip_attention___ret___hidden_states(self, *args, **kwargs): + hidden_states = kwargs.get("hidden_states", None) + if hidden_states is None and len(args) > 0: + hidden_states = args[0] + return hidden_states + + +def _skip_attention___ret___hidden_states___encoder_hidden_states(self, *args, **kwargs): + hidden_states = kwargs.get("hidden_states", None) + encoder_hidden_states = kwargs.get("encoder_hidden_states", None) + if hidden_states is None and len(args) > 0: + hidden_states = args[0] + if encoder_hidden_states is None and len(args) > 1: + encoder_hidden_states = args[1] + return hidden_states, encoder_hidden_states + + +_skip_proc_output_fn_Attention_AttnProcessor2_0 = _skip_attention___ret___hidden_states +_skip_proc_output_fn_Attention_CogView4AttnProcessor = _skip_attention___ret___hidden_states___encoder_hidden_states +_skip_proc_output_fn_Attention_WanAttnProcessor2_0 = _skip_attention___ret___hidden_states +# not sure what this is yet. +_skip_proc_output_fn_Attention_FluxAttnProcessor = _skip_attention___ret___hidden_states +_skip_proc_output_fn_Attention_QwenDoubleStreamAttnProcessor2_0 = _skip_attention___ret___hidden_states +_skip_proc_output_fn_Attention_HunyuanImageAttnProcessor = _skip_attention___ret___hidden_states +_skip_proc_output_fn_Attention_ZSingleStreamAttnProcessor = _skip_attention___ret___hidden_states +# fmt: on diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/__init__.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..af44feb00128c44a10f90326dca517791567d86c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/__init__.py @@ -0,0 +1,246 @@ +# Copyright 2025 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import TYPE_CHECKING + +from ..utils import ( + DIFFUSERS_SLOW_IMPORT, + _LazyModule, + is_flax_available, + is_torch_available, +) + + +_import_structure = {} + +if is_torch_available(): + _import_structure["_modeling_parallel"] = ["ContextParallelConfig", "ParallelConfig"] + _import_structure["adapter"] = ["MultiAdapter", "T2IAdapter"] + _import_structure["attention_dispatch"] = ["AttentionBackendName", "attention_backend"] + _import_structure["auto_model"] = ["AutoModel"] + _import_structure["autoencoders.autoencoder_asym_kl"] = ["AsymmetricAutoencoderKL"] + _import_structure["autoencoders.autoencoder_dc"] = ["AutoencoderDC"] + _import_structure["autoencoders.autoencoder_kl"] = ["AutoencoderKL"] + _import_structure["autoencoders.autoencoder_kl_allegro"] = ["AutoencoderKLAllegro"] + _import_structure["autoencoders.autoencoder_kl_cogvideox"] = ["AutoencoderKLCogVideoX"] + _import_structure["autoencoders.autoencoder_kl_cosmos"] = ["AutoencoderKLCosmos"] + _import_structure["autoencoders.autoencoder_kl_hunyuan_video"] = ["AutoencoderKLHunyuanVideo"] + _import_structure["autoencoders.autoencoder_kl_hunyuanimage"] = ["AutoencoderKLHunyuanImage"] + _import_structure["autoencoders.autoencoder_kl_hunyuanimage_refiner"] = ["AutoencoderKLHunyuanImageRefiner"] + _import_structure["autoencoders.autoencoder_kl_ltx"] = ["AutoencoderKLLTXVideo"] + _import_structure["autoencoders.autoencoder_kl_magvit"] = ["AutoencoderKLMagvit"] + _import_structure["autoencoders.autoencoder_kl_mochi"] = ["AutoencoderKLMochi"] + _import_structure["autoencoders.autoencoder_kl_qwenimage"] = ["AutoencoderKLQwenImage"] + _import_structure["autoencoders.autoencoder_kl_temporal_decoder"] = ["AutoencoderKLTemporalDecoder"] + _import_structure["autoencoders.autoencoder_kl_wan"] = ["AutoencoderKLWan"] + _import_structure["autoencoders.autoencoder_oobleck"] = ["AutoencoderOobleck"] + _import_structure["autoencoders.autoencoder_tiny"] = ["AutoencoderTiny"] + _import_structure["autoencoders.consistency_decoder_vae"] = ["ConsistencyDecoderVAE"] + _import_structure["autoencoders.vq_model"] = ["VQModel"] + _import_structure["cache_utils"] = ["CacheMixin"] + _import_structure["controlnets.controlnet"] = ["ControlNetModel"] + _import_structure["controlnets.controlnet_flux"] = ["FluxControlNetModel", "FluxMultiControlNetModel"] + _import_structure["controlnets.controlnet_hunyuan"] = [ + "HunyuanDiT2DControlNetModel", + "HunyuanDiT2DMultiControlNetModel", + ] + _import_structure["controlnets.controlnet_qwenimage"] = [ + "QwenImageControlNetModel", + "QwenImageMultiControlNetModel", + ] + _import_structure["controlnets.controlnet_sana"] = ["SanaControlNetModel"] + _import_structure["controlnets.controlnet_sd3"] = ["SD3ControlNetModel", "SD3MultiControlNetModel"] + _import_structure["controlnets.controlnet_sparsectrl"] = ["SparseControlNetModel"] + _import_structure["controlnets.controlnet_union"] = ["ControlNetUnionModel"] + _import_structure["controlnets.controlnet_xs"] = ["ControlNetXSAdapter", "UNetControlNetXSModel"] + _import_structure["controlnets.multicontrolnet"] = ["MultiControlNetModel"] + _import_structure["controlnets.multicontrolnet_union"] = ["MultiControlNetUnionModel"] + _import_structure["embeddings"] = ["ImageProjection"] + _import_structure["modeling_utils"] = ["ModelMixin"] + _import_structure["transformers.auraflow_transformer_2d"] = ["AuraFlowTransformer2DModel"] + _import_structure["transformers.cogvideox_transformer_3d"] = ["CogVideoXTransformer3DModel"] + _import_structure["transformers.consisid_transformer_3d"] = ["ConsisIDTransformer3DModel"] + _import_structure["transformers.dit_transformer_2d"] = ["DiTTransformer2DModel"] + _import_structure["transformers.dual_transformer_2d"] = ["DualTransformer2DModel"] + _import_structure["transformers.hunyuan_transformer_2d"] = ["HunyuanDiT2DModel"] + _import_structure["transformers.latte_transformer_3d"] = ["LatteTransformer3DModel"] + _import_structure["transformers.lumina_nextdit2d"] = ["LuminaNextDiT2DModel"] + _import_structure["transformers.pixart_transformer_2d"] = ["PixArtTransformer2DModel"] + _import_structure["transformers.prior_transformer"] = ["PriorTransformer"] + _import_structure["transformers.sana_transformer"] = ["SanaTransformer2DModel"] + _import_structure["transformers.stable_audio_transformer"] = ["StableAudioDiTModel"] + _import_structure["transformers.t5_film_transformer"] = ["T5FilmDecoder"] + _import_structure["transformers.transformer_2d"] = ["Transformer2DModel"] + _import_structure["transformers.transformer_allegro"] = ["AllegroTransformer3DModel"] + _import_structure["transformers.transformer_bria"] = ["BriaTransformer2DModel"] + _import_structure["transformers.transformer_bria_fibo"] = ["BriaFiboTransformer2DModel"] + _import_structure["transformers.transformer_chroma"] = ["ChromaTransformer2DModel"] + _import_structure["transformers.transformer_chronoedit"] = ["ChronoEditTransformer3DModel"] + _import_structure["transformers.transformer_cogview3plus"] = ["CogView3PlusTransformer2DModel"] + _import_structure["transformers.transformer_cogview4"] = ["CogView4Transformer2DModel"] + _import_structure["transformers.transformer_cosmos"] = ["CosmosTransformer3DModel"] + _import_structure["transformers.transformer_easyanimate"] = ["EasyAnimateTransformer3DModel"] + _import_structure["transformers.transformer_flux"] = ["FluxTransformer2DModel"] + _import_structure["transformers.transformer_hidream_image"] = ["HiDreamImageTransformer2DModel"] + _import_structure["transformers.transformer_hunyuan_video"] = ["HunyuanVideoTransformer3DModel"] + _import_structure["transformers.transformer_hunyuan_video_framepack"] = ["HunyuanVideoFramepackTransformer3DModel"] + _import_structure["transformers.transformer_hunyuanimage"] = ["HunyuanImageTransformer2DModel"] + _import_structure["transformers.transformer_kandinsky"] = ["Kandinsky5Transformer3DModel"] + _import_structure["transformers.transformer_ltx"] = ["LTXVideoTransformer3DModel"] + _import_structure["transformers.transformer_lumina2"] = ["Lumina2Transformer2DModel"] + _import_structure["transformers.transformer_mochi"] = ["MochiTransformer3DModel"] + _import_structure["transformers.transformer_omnigen"] = ["OmniGenTransformer2DModel"] + _import_structure["transformers.transformer_prx"] = ["PRXTransformer2DModel"] + _import_structure["transformers.transformer_qwenimage"] = ["QwenImageTransformer2DModel"] + _import_structure["transformers.transformer_sana_video"] = ["SanaVideoTransformer3DModel"] + _import_structure["transformers.transformer_sd3"] = ["SD3Transformer2DModel"] + _import_structure["transformers.transformer_skyreels_v2"] = ["SkyReelsV2Transformer3DModel"] + _import_structure["transformers.transformer_temporal"] = ["TransformerTemporalModel"] + _import_structure["transformers.transformer_wan"] = ["WanTransformer3DModel"] + _import_structure["transformers.transformer_wan_animate"] = ["WanAnimateTransformer3DModel"] + _import_structure["transformers.transformer_wan_vace"] = ["WanVACETransformer3DModel"] + _import_structure["transformers.transformer_z_image"] = ["ZImageTransformer2DModel"] + _import_structure["unets.unet_1d"] = ["UNet1DModel"] + _import_structure["unets.unet_2d"] = ["UNet2DModel"] + _import_structure["unets.unet_2d_condition"] = ["UNet2DConditionModel"] + _import_structure["unets.unet_3d_condition"] = ["UNet3DConditionModel"] + _import_structure["unets.unet_i2vgen_xl"] = ["I2VGenXLUNet"] + _import_structure["unets.unet_kandinsky3"] = ["Kandinsky3UNet"] + _import_structure["unets.unet_motion_model"] = ["MotionAdapter", "UNetMotionModel"] + _import_structure["unets.unet_spatio_temporal_condition"] = ["UNetSpatioTemporalConditionModel"] + _import_structure["unets.unet_stable_cascade"] = ["StableCascadeUNet"] + _import_structure["unets.uvit_2d"] = ["UVit2DModel"] + +if is_flax_available(): + _import_structure["controlnets.controlnet_flax"] = ["FlaxControlNetModel"] + _import_structure["unets.unet_2d_condition_flax"] = ["FlaxUNet2DConditionModel"] + _import_structure["vae_flax"] = ["FlaxAutoencoderKL"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + if is_torch_available(): + from ._modeling_parallel import ContextParallelConfig, ParallelConfig + from .adapter import MultiAdapter, T2IAdapter + from .attention_dispatch import AttentionBackendName, attention_backend + from .auto_model import AutoModel + from .autoencoders import ( + AsymmetricAutoencoderKL, + AutoencoderDC, + AutoencoderKL, + AutoencoderKLAllegro, + AutoencoderKLCogVideoX, + AutoencoderKLCosmos, + AutoencoderKLHunyuanImage, + AutoencoderKLHunyuanImageRefiner, + AutoencoderKLHunyuanVideo, + AutoencoderKLLTXVideo, + AutoencoderKLMagvit, + AutoencoderKLMochi, + AutoencoderKLQwenImage, + AutoencoderKLTemporalDecoder, + AutoencoderKLWan, + AutoencoderOobleck, + AutoencoderTiny, + ConsistencyDecoderVAE, + VQModel, + ) + from .cache_utils import CacheMixin + from .controlnets import ( + ControlNetModel, + ControlNetUnionModel, + ControlNetXSAdapter, + FluxControlNetModel, + FluxMultiControlNetModel, + HunyuanDiT2DControlNetModel, + HunyuanDiT2DMultiControlNetModel, + MultiControlNetModel, + MultiControlNetUnionModel, + QwenImageControlNetModel, + QwenImageMultiControlNetModel, + SanaControlNetModel, + SD3ControlNetModel, + SD3MultiControlNetModel, + SparseControlNetModel, + UNetControlNetXSModel, + ) + from .embeddings import ImageProjection + from .modeling_utils import ModelMixin + from .transformers import ( + AllegroTransformer3DModel, + AuraFlowTransformer2DModel, + BriaFiboTransformer2DModel, + BriaTransformer2DModel, + ChromaTransformer2DModel, + ChronoEditTransformer3DModel, + CogVideoXTransformer3DModel, + CogView3PlusTransformer2DModel, + CogView4Transformer2DModel, + ConsisIDTransformer3DModel, + CosmosTransformer3DModel, + DiTTransformer2DModel, + DualTransformer2DModel, + EasyAnimateTransformer3DModel, + FluxTransformer2DModel, + HiDreamImageTransformer2DModel, + HunyuanDiT2DModel, + HunyuanImageTransformer2DModel, + HunyuanVideoFramepackTransformer3DModel, + HunyuanVideoTransformer3DModel, + Kandinsky5Transformer3DModel, + LatteTransformer3DModel, + LTXVideoTransformer3DModel, + Lumina2Transformer2DModel, + LuminaNextDiT2DModel, + MochiTransformer3DModel, + OmniGenTransformer2DModel, + PixArtTransformer2DModel, + PriorTransformer, + PRXTransformer2DModel, + QwenImageTransformer2DModel, + SanaTransformer2DModel, + SanaVideoTransformer3DModel, + SD3Transformer2DModel, + SkyReelsV2Transformer3DModel, + StableAudioDiTModel, + T5FilmDecoder, + Transformer2DModel, + TransformerTemporalModel, + WanAnimateTransformer3DModel, + WanTransformer3DModel, + WanVACETransformer3DModel, + ZImageTransformer2DModel, + ) + from .unets import ( + I2VGenXLUNet, + Kandinsky3UNet, + MotionAdapter, + StableCascadeUNet, + UNet1DModel, + UNet2DConditionModel, + UNet2DModel, + UNet3DConditionModel, + UNetMotionModel, + UNetSpatioTemporalConditionModel, + UVit2DModel, + ) + + if is_flax_available(): + from .controlnets import FlaxControlNetModel + from .unets import FlaxUNet2DConditionModel + from .vae_flax import FlaxAutoencoderKL + +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__) diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/transformers/__init__.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/transformers/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..84a41c2d470d6d77c63c8b6339cfea69c9d681cb --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/transformers/__init__.py @@ -0,0 +1,47 @@ +from ...utils import is_torch_available + + +if is_torch_available(): + from .auraflow_transformer_2d import AuraFlowTransformer2DModel + from .cogvideox_transformer_3d import CogVideoXTransformer3DModel + from .consisid_transformer_3d import ConsisIDTransformer3DModel + from .dit_transformer_2d import DiTTransformer2DModel + from .dual_transformer_2d import DualTransformer2DModel + from .hunyuan_transformer_2d import HunyuanDiT2DModel + from .latte_transformer_3d import LatteTransformer3DModel + from .lumina_nextdit2d import LuminaNextDiT2DModel + from .pixart_transformer_2d import PixArtTransformer2DModel + from .prior_transformer import PriorTransformer + from .sana_transformer import SanaTransformer2DModel + from .stable_audio_transformer import StableAudioDiTModel + from .t5_film_transformer import T5FilmDecoder + from .transformer_2d import Transformer2DModel + from .transformer_allegro import AllegroTransformer3DModel + from .transformer_bria import BriaTransformer2DModel + from .transformer_bria_fibo import BriaFiboTransformer2DModel + from .transformer_chroma import ChromaTransformer2DModel + from .transformer_chronoedit import ChronoEditTransformer3DModel + from .transformer_cogview3plus import CogView3PlusTransformer2DModel + from .transformer_cogview4 import CogView4Transformer2DModel + from .transformer_cosmos import CosmosTransformer3DModel + from .transformer_easyanimate import EasyAnimateTransformer3DModel + from .transformer_flux import FluxTransformer2DModel + from .transformer_hidream_image import HiDreamImageTransformer2DModel + from .transformer_hunyuan_video import HunyuanVideoTransformer3DModel + from .transformer_hunyuan_video_framepack import HunyuanVideoFramepackTransformer3DModel + from .transformer_hunyuanimage import HunyuanImageTransformer2DModel + from .transformer_kandinsky import Kandinsky5Transformer3DModel + from .transformer_ltx import LTXVideoTransformer3DModel + from .transformer_lumina2 import Lumina2Transformer2DModel + from .transformer_mochi import MochiTransformer3DModel + from .transformer_omnigen import OmniGenTransformer2DModel + from .transformer_prx import PRXTransformer2DModel + from .transformer_qwenimage import QwenImageTransformer2DModel + from .transformer_sana_video import SanaVideoTransformer3DModel + from .transformer_sd3 import SD3Transformer2DModel + from .transformer_skyreels_v2 import SkyReelsV2Transformer3DModel + from .transformer_temporal import TransformerTemporalModel + from .transformer_wan import WanTransformer3DModel + from .transformer_wan_animate import WanAnimateTransformer3DModel + from .transformer_wan_vace import WanVACETransformer3DModel + from .transformer_z_image import ZImageTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/transformers/transformer_z_image.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/transformers/transformer_z_image.py new file mode 100644 index 0000000000000000000000000000000000000000..a5c1de682a74c0c997199b3bfbec8bda07e4bba1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/models/transformers/transformer_z_image.py @@ -0,0 +1,647 @@ +# Copyright 2025 Alibaba Z-Image Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from typing import List, Optional, Tuple + +import torch +import torch.nn as nn +import torch.nn.functional as F +from torch.nn.utils.rnn import pad_sequence + +from ...configuration_utils import ConfigMixin, register_to_config +from ...loaders import FromOriginalModelMixin, PeftAdapterMixin +from ...models.attention_processor import Attention +from ...models.modeling_utils import ModelMixin +from ...models.normalization import RMSNorm +from ...utils.torch_utils import maybe_allow_in_graph +from ..attention_dispatch import dispatch_attention_fn + + +ADALN_EMBED_DIM = 256 +SEQ_MULTI_OF = 32 + + +class TimestepEmbedder(nn.Module): + def __init__(self, out_size, mid_size=None, frequency_embedding_size=256): + super().__init__() + if mid_size is None: + mid_size = out_size + self.mlp = nn.Sequential( + nn.Linear( + frequency_embedding_size, + mid_size, + bias=True, + ), + nn.SiLU(), + nn.Linear( + mid_size, + out_size, + bias=True, + ), + ) + + self.frequency_embedding_size = frequency_embedding_size + + @staticmethod + def timestep_embedding(t, dim, max_period=10000): + with torch.amp.autocast("cuda", enabled=False): + half = dim // 2 + freqs = torch.exp( + -math.log(max_period) * torch.arange(start=0, end=half, dtype=torch.float32, device=t.device) / half + ) + args = t[:, None].float() * freqs[None] + embedding = torch.cat([torch.cos(args), torch.sin(args)], dim=-1) + if dim % 2: + embedding = torch.cat([embedding, torch.zeros_like(embedding[:, :1])], dim=-1) + return embedding + + def forward(self, t): + t_freq = self.timestep_embedding(t, self.frequency_embedding_size) + t_emb = self.mlp(t_freq.to(self.mlp[0].weight.dtype)) + return t_emb + + +class ZSingleStreamAttnProcessor: + """ + Processor for Z-Image single stream attention that adapts the existing Attention class to match the behavior of the + original Z-ImageAttention module. + """ + + _attention_backend = None + _parallel_config = None + + def __init__(self): + if not hasattr(F, "scaled_dot_product_attention"): + raise ImportError( + "ZSingleStreamAttnProcessor requires PyTorch 2.0. To use it, please upgrade PyTorch to version 2.0 or higher." + ) + + def __call__( + self, + attn: Attention, + hidden_states: torch.Tensor, + encoder_hidden_states: Optional[torch.Tensor] = None, + attention_mask: Optional[torch.Tensor] = None, + freqs_cis: Optional[torch.Tensor] = None, + ) -> torch.Tensor: + query = attn.to_q(hidden_states) + key = attn.to_k(hidden_states) + value = attn.to_v(hidden_states) + + query = query.unflatten(-1, (attn.heads, -1)) + key = key.unflatten(-1, (attn.heads, -1)) + value = value.unflatten(-1, (attn.heads, -1)) + + # Apply Norms + if attn.norm_q is not None: + query = attn.norm_q(query) + if attn.norm_k is not None: + key = attn.norm_k(key) + + # Apply RoPE + def apply_rotary_emb(x_in: torch.Tensor, freqs_cis: torch.Tensor) -> torch.Tensor: + with torch.amp.autocast("cuda", enabled=False): + x = torch.view_as_complex(x_in.float().reshape(*x_in.shape[:-1], -1, 2)) + freqs_cis = freqs_cis.unsqueeze(2) + x_out = torch.view_as_real(x * freqs_cis).flatten(3) + return x_out.type_as(x_in) # todo + + if freqs_cis is not None: + query = apply_rotary_emb(query, freqs_cis) + key = apply_rotary_emb(key, freqs_cis) + + # Cast to correct dtype + dtype = query.dtype + query, key = query.to(dtype), key.to(dtype) + + # Compute joint attention + hidden_states = dispatch_attention_fn( + query, + key, + value, + attn_mask=attention_mask, + dropout_p=0.0, + is_causal=False, + backend=self._attention_backend, + parallel_config=self._parallel_config, + ) + + # Reshape back + hidden_states = hidden_states.flatten(2, 3) + hidden_states = hidden_states.to(dtype) + + output = attn.to_out[0](hidden_states) + if len(attn.to_out) > 1: # dropout + output = attn.to_out[1](output) + + return output + + +class FeedForward(nn.Module): + def __init__(self, dim: int, hidden_dim: int): + super().__init__() + self.w1 = nn.Linear(dim, hidden_dim, bias=False) + self.w2 = nn.Linear(hidden_dim, dim, bias=False) + self.w3 = nn.Linear(dim, hidden_dim, bias=False) + + def _forward_silu_gating(self, x1, x3): + return F.silu(x1) * x3 + + def forward(self, x): + return self.w2(self._forward_silu_gating(self.w1(x), self.w3(x))) + + +@maybe_allow_in_graph +class ZImageTransformerBlock(nn.Module): + def __init__( + self, + layer_id: int, + dim: int, + n_heads: int, + n_kv_heads: int, + norm_eps: float, + qk_norm: bool, + modulation=True, + ): + super().__init__() + self.dim = dim + self.head_dim = dim // n_heads + + # Refactored to use diffusers Attention with custom processor + # Original Z-Image params: dim, n_heads, n_kv_heads, qk_norm + self.attention = Attention( + query_dim=dim, + cross_attention_dim=None, + dim_head=dim // n_heads, + heads=n_heads, + qk_norm="rms_norm" if qk_norm else None, + eps=1e-5, + bias=False, + out_bias=False, + processor=ZSingleStreamAttnProcessor(), + ) + + self.feed_forward = FeedForward(dim=dim, hidden_dim=int(dim / 3 * 8)) + self.layer_id = layer_id + + self.attention_norm1 = RMSNorm(dim, eps=norm_eps) + self.ffn_norm1 = RMSNorm(dim, eps=norm_eps) + + self.attention_norm2 = RMSNorm(dim, eps=norm_eps) + self.ffn_norm2 = RMSNorm(dim, eps=norm_eps) + + self.modulation = modulation + if modulation: + self.adaLN_modulation = nn.Sequential( + nn.Linear(min(dim, ADALN_EMBED_DIM), 4 * dim, bias=True), + ) + + def forward( + self, + x: torch.Tensor, + attn_mask: torch.Tensor, + freqs_cis: torch.Tensor, + adaln_input: Optional[torch.Tensor] = None, + ): + if self.modulation: + assert adaln_input is not None + scale_msa, gate_msa, scale_mlp, gate_mlp = self.adaLN_modulation(adaln_input).unsqueeze(1).chunk(4, dim=2) + gate_msa, gate_mlp = gate_msa.tanh(), gate_mlp.tanh() + scale_msa, scale_mlp = 1.0 + scale_msa, 1.0 + scale_mlp + + # Attention block + attn_out = self.attention( + self.attention_norm1(x) * scale_msa, + attention_mask=attn_mask, + freqs_cis=freqs_cis, + ) + x = x + gate_msa * self.attention_norm2(attn_out) + + # FFN block + x = x + gate_mlp * self.ffn_norm2( + self.feed_forward( + self.ffn_norm1(x) * scale_mlp, + ) + ) + else: + # Attention block + attn_out = self.attention( + self.attention_norm1(x), + attention_mask=attn_mask, + freqs_cis=freqs_cis, + ) + x = x + self.attention_norm2(attn_out) + + # FFN block + x = x + self.ffn_norm2( + self.feed_forward( + self.ffn_norm1(x), + ) + ) + + return x + + +class FinalLayer(nn.Module): + def __init__(self, hidden_size, out_channels): + super().__init__() + self.norm_final = nn.LayerNorm(hidden_size, elementwise_affine=False, eps=1e-6) + self.linear = nn.Linear(hidden_size, out_channels, bias=True) + + self.adaLN_modulation = nn.Sequential( + nn.SiLU(), + nn.Linear(min(hidden_size, ADALN_EMBED_DIM), hidden_size, bias=True), + ) + + def forward(self, x, c): + scale = 1.0 + self.adaLN_modulation(c) + x = self.norm_final(x) * scale.unsqueeze(1) + x = self.linear(x) + return x + + +class RopeEmbedder: + def __init__( + self, + theta: float = 256.0, + axes_dims: List[int] = (16, 56, 56), + axes_lens: List[int] = (64, 128, 128), + ): + self.theta = theta + self.axes_dims = axes_dims + self.axes_lens = axes_lens + assert len(axes_dims) == len(axes_lens), "axes_dims and axes_lens must have the same length" + self.freqs_cis = None + + @staticmethod + def precompute_freqs_cis(dim: List[int], end: List[int], theta: float = 256.0): + with torch.device("cpu"): + freqs_cis = [] + for i, (d, e) in enumerate(zip(dim, end)): + freqs = 1.0 / (theta ** (torch.arange(0, d, 2, dtype=torch.float64, device="cpu") / d)) + timestep = torch.arange(e, device=freqs.device, dtype=torch.float64) + freqs = torch.outer(timestep, freqs).float() + freqs_cis_i = torch.polar(torch.ones_like(freqs), freqs).to(torch.complex64) # complex64 + freqs_cis.append(freqs_cis_i) + + return freqs_cis + + def __call__(self, ids: torch.Tensor): + assert ids.ndim == 2 + assert ids.shape[-1] == len(self.axes_dims) + device = ids.device + + if self.freqs_cis is None: + self.freqs_cis = self.precompute_freqs_cis(self.axes_dims, self.axes_lens, theta=self.theta) + self.freqs_cis = [freqs_cis.to(device) for freqs_cis in self.freqs_cis] + + result = [] + for i in range(len(self.axes_dims)): + index = ids[:, i] + result.append(self.freqs_cis[i][index]) + return torch.cat(result, dim=-1) + + +class ZImageTransformer2DModel(ModelMixin, ConfigMixin, PeftAdapterMixin, FromOriginalModelMixin): + _supports_gradient_checkpointing = True + _no_split_modules = ["ZImageTransformerBlock"] + + @register_to_config + def __init__( + self, + all_patch_size=(2,), + all_f_patch_size=(1,), + in_channels=16, + dim=3840, + n_layers=30, + n_refiner_layers=2, + n_heads=30, + n_kv_heads=30, + norm_eps=1e-5, + qk_norm=True, + cap_feat_dim=2560, + rope_theta=256.0, + t_scale=1000.0, + axes_dims=[32, 48, 48], + axes_lens=[1024, 512, 512], + ) -> None: + super().__init__() + self.in_channels = in_channels + self.out_channels = in_channels + self.all_patch_size = all_patch_size + self.all_f_patch_size = all_f_patch_size + self.dim = dim + self.n_heads = n_heads + + self.rope_theta = rope_theta + self.t_scale = t_scale + self.gradient_checkpointing = False + + assert len(all_patch_size) == len(all_f_patch_size) + + all_x_embedder = {} + all_final_layer = {} + for patch_idx, (patch_size, f_patch_size) in enumerate(zip(all_patch_size, all_f_patch_size)): + x_embedder = nn.Linear(f_patch_size * patch_size * patch_size * in_channels, dim, bias=True) + all_x_embedder[f"{patch_size}-{f_patch_size}"] = x_embedder + + final_layer = FinalLayer(dim, patch_size * patch_size * f_patch_size * self.out_channels) + all_final_layer[f"{patch_size}-{f_patch_size}"] = final_layer + + self.all_x_embedder = nn.ModuleDict(all_x_embedder) + self.all_final_layer = nn.ModuleDict(all_final_layer) + self.noise_refiner = nn.ModuleList( + [ + ZImageTransformerBlock( + 1000 + layer_id, + dim, + n_heads, + n_kv_heads, + norm_eps, + qk_norm, + modulation=True, + ) + for layer_id in range(n_refiner_layers) + ] + ) + self.context_refiner = nn.ModuleList( + [ + ZImageTransformerBlock( + layer_id, + dim, + n_heads, + n_kv_heads, + norm_eps, + qk_norm, + modulation=False, + ) + for layer_id in range(n_refiner_layers) + ] + ) + self.t_embedder = TimestepEmbedder(min(dim, ADALN_EMBED_DIM), mid_size=1024) + self.cap_embedder = nn.Sequential( + RMSNorm(cap_feat_dim, eps=norm_eps), + nn.Linear(cap_feat_dim, dim, bias=True), + ) + + self.x_pad_token = nn.Parameter(torch.empty((1, dim))) + self.cap_pad_token = nn.Parameter(torch.empty((1, dim))) + + self.layers = nn.ModuleList( + [ + ZImageTransformerBlock(layer_id, dim, n_heads, n_kv_heads, norm_eps, qk_norm) + for layer_id in range(n_layers) + ] + ) + head_dim = dim // n_heads + assert head_dim == sum(axes_dims) + self.axes_dims = axes_dims + self.axes_lens = axes_lens + + self.rope_embedder = RopeEmbedder(theta=rope_theta, axes_dims=axes_dims, axes_lens=axes_lens) + + def unpatchify(self, x: List[torch.Tensor], size: List[Tuple], patch_size, f_patch_size) -> List[torch.Tensor]: + pH = pW = patch_size + pF = f_patch_size + bsz = len(x) + assert len(size) == bsz + for i in range(bsz): + F, H, W = size[i] + ori_len = (F // pF) * (H // pH) * (W // pW) + # "f h w pf ph pw c -> c (f pf) (h ph) (w pw)" + x[i] = ( + x[i][:ori_len] + .view(F // pF, H // pH, W // pW, pF, pH, pW, self.out_channels) + .permute(6, 0, 3, 1, 4, 2, 5) + .reshape(self.out_channels, F, H, W) + ) + return x + + @staticmethod + def create_coordinate_grid(size, start=None, device=None): + if start is None: + start = (0 for _ in size) + + axes = [torch.arange(x0, x0 + span, dtype=torch.int32, device=device) for x0, span in zip(start, size)] + grids = torch.meshgrid(axes, indexing="ij") + return torch.stack(grids, dim=-1) + + def patchify_and_embed( + self, + all_image: List[torch.Tensor], + all_cap_feats: List[torch.Tensor], + patch_size: int, + f_patch_size: int, + ): + pH = pW = patch_size + pF = f_patch_size + device = all_image[0].device + + all_image_out = [] + all_image_size = [] + all_image_pos_ids = [] + all_image_pad_mask = [] + all_cap_pos_ids = [] + all_cap_pad_mask = [] + all_cap_feats_out = [] + + for i, (image, cap_feat) in enumerate(zip(all_image, all_cap_feats)): + ### Process Caption + cap_ori_len = len(cap_feat) + cap_padding_len = (-cap_ori_len) % SEQ_MULTI_OF + # padded position ids + cap_padded_pos_ids = self.create_coordinate_grid( + size=(cap_ori_len + cap_padding_len, 1, 1), + start=(1, 0, 0), + device=device, + ).flatten(0, 2) + all_cap_pos_ids.append(cap_padded_pos_ids) + # pad mask + all_cap_pad_mask.append( + torch.cat( + [ + torch.zeros((cap_ori_len,), dtype=torch.bool, device=device), + torch.ones((cap_padding_len,), dtype=torch.bool, device=device), + ], + dim=0, + ) + ) + # padded feature + cap_padded_feat = torch.cat( + [cap_feat, cap_feat[-1:].repeat(cap_padding_len, 1)], + dim=0, + ) + all_cap_feats_out.append(cap_padded_feat) + + ### Process Image + C, F, H, W = image.size() + all_image_size.append((F, H, W)) + F_tokens, H_tokens, W_tokens = F // pF, H // pH, W // pW + + image = image.view(C, F_tokens, pF, H_tokens, pH, W_tokens, pW) + # "c f pf h ph w pw -> (f h w) (pf ph pw c)" + image = image.permute(1, 3, 5, 2, 4, 6, 0).reshape(F_tokens * H_tokens * W_tokens, pF * pH * pW * C) + + image_ori_len = len(image) + image_padding_len = (-image_ori_len) % SEQ_MULTI_OF + + image_ori_pos_ids = self.create_coordinate_grid( + size=(F_tokens, H_tokens, W_tokens), + start=(cap_ori_len + cap_padding_len + 1, 0, 0), + device=device, + ).flatten(0, 2) + image_padding_pos_ids = ( + self.create_coordinate_grid( + size=(1, 1, 1), + start=(0, 0, 0), + device=device, + ) + .flatten(0, 2) + .repeat(image_padding_len, 1) + ) + image_padded_pos_ids = torch.cat([image_ori_pos_ids, image_padding_pos_ids], dim=0) + all_image_pos_ids.append(image_padded_pos_ids) + # pad mask + all_image_pad_mask.append( + torch.cat( + [ + torch.zeros((image_ori_len,), dtype=torch.bool, device=device), + torch.ones((image_padding_len,), dtype=torch.bool, device=device), + ], + dim=0, + ) + ) + # padded feature + image_padded_feat = torch.cat([image, image[-1:].repeat(image_padding_len, 1)], dim=0) + all_image_out.append(image_padded_feat) + + return ( + all_image_out, + all_cap_feats_out, + all_image_size, + all_image_pos_ids, + all_cap_pos_ids, + all_image_pad_mask, + all_cap_pad_mask, + ) + + def forward( + self, + x: List[torch.Tensor], + t, + cap_feats: List[torch.Tensor], + patch_size=2, + f_patch_size=1, + ): + assert patch_size in self.all_patch_size + assert f_patch_size in self.all_f_patch_size + + bsz = len(x) + device = x[0].device + t = t * self.t_scale + t = self.t_embedder(t) + + adaln_input = t + + ( + x, + cap_feats, + x_size, + x_pos_ids, + cap_pos_ids, + x_inner_pad_mask, + cap_inner_pad_mask, + ) = self.patchify_and_embed(x, cap_feats, patch_size, f_patch_size) + + # x embed & refine + x_item_seqlens = [len(_) for _ in x] + assert all(_ % SEQ_MULTI_OF == 0 for _ in x_item_seqlens) + x_max_item_seqlen = max(x_item_seqlens) + + x = torch.cat(x, dim=0) + x = self.all_x_embedder[f"{patch_size}-{f_patch_size}"](x) + x[torch.cat(x_inner_pad_mask)] = self.x_pad_token + x = list(x.split(x_item_seqlens, dim=0)) + x_freqs_cis = list(self.rope_embedder(torch.cat(x_pos_ids, dim=0)).split(x_item_seqlens, dim=0)) + + x = pad_sequence(x, batch_first=True, padding_value=0.0) + x_freqs_cis = pad_sequence(x_freqs_cis, batch_first=True, padding_value=0.0) + x_attn_mask = torch.zeros((bsz, x_max_item_seqlen), dtype=torch.bool, device=device) + for i, seq_len in enumerate(x_item_seqlens): + x_attn_mask[i, :seq_len] = 1 + + if torch.is_grad_enabled() and self.gradient_checkpointing: + for layer in self.noise_refiner: + x = self._gradient_checkpointing_func(layer, x, x_attn_mask, x_freqs_cis, adaln_input) + else: + for layer in self.noise_refiner: + x = layer(x, x_attn_mask, x_freqs_cis, adaln_input) + + # cap embed & refine + cap_item_seqlens = [len(_) for _ in cap_feats] + assert all(_ % SEQ_MULTI_OF == 0 for _ in cap_item_seqlens) + cap_max_item_seqlen = max(cap_item_seqlens) + + cap_feats = torch.cat(cap_feats, dim=0) + cap_feats = self.cap_embedder(cap_feats) + cap_feats[torch.cat(cap_inner_pad_mask)] = self.cap_pad_token + cap_feats = list(cap_feats.split(cap_item_seqlens, dim=0)) + cap_freqs_cis = list(self.rope_embedder(torch.cat(cap_pos_ids, dim=0)).split(cap_item_seqlens, dim=0)) + + cap_feats = pad_sequence(cap_feats, batch_first=True, padding_value=0.0) + cap_freqs_cis = pad_sequence(cap_freqs_cis, batch_first=True, padding_value=0.0) + cap_attn_mask = torch.zeros((bsz, cap_max_item_seqlen), dtype=torch.bool, device=device) + for i, seq_len in enumerate(cap_item_seqlens): + cap_attn_mask[i, :seq_len] = 1 + + if torch.is_grad_enabled() and self.gradient_checkpointing: + for layer in self.context_refiner: + cap_feats = self._gradient_checkpointing_func(layer, cap_feats, cap_attn_mask, cap_freqs_cis) + else: + for layer in self.context_refiner: + cap_feats = layer(cap_feats, cap_attn_mask, cap_freqs_cis) + + # unified + unified = [] + unified_freqs_cis = [] + for i in range(bsz): + x_len = x_item_seqlens[i] + cap_len = cap_item_seqlens[i] + unified.append(torch.cat([x[i][:x_len], cap_feats[i][:cap_len]])) + unified_freqs_cis.append(torch.cat([x_freqs_cis[i][:x_len], cap_freqs_cis[i][:cap_len]])) + unified_item_seqlens = [a + b for a, b in zip(cap_item_seqlens, x_item_seqlens)] + assert unified_item_seqlens == [len(_) for _ in unified] + unified_max_item_seqlen = max(unified_item_seqlens) + + unified = pad_sequence(unified, batch_first=True, padding_value=0.0) + unified_freqs_cis = pad_sequence(unified_freqs_cis, batch_first=True, padding_value=0.0) + unified_attn_mask = torch.zeros((bsz, unified_max_item_seqlen), dtype=torch.bool, device=device) + for i, seq_len in enumerate(unified_item_seqlens): + unified_attn_mask[i, :seq_len] = 1 + + if torch.is_grad_enabled() and self.gradient_checkpointing: + for layer in self.layers: + unified = self._gradient_checkpointing_func( + layer, unified, unified_attn_mask, unified_freqs_cis, adaln_input + ) + else: + for layer in self.layers: + unified = layer(unified, unified_attn_mask, unified_freqs_cis, adaln_input) + + unified = self.all_final_layer[f"{patch_size}-{f_patch_size}"](unified, adaln_input) + unified = list(unified.unbind(dim=0)) + x = self.unpatchify(unified, x_size, patch_size, f_patch_size) + + return x, {} diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/__init__.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..4ffe85da3c9ec403ecc0711d61f86f81fd3076c3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/__init__.py @@ -0,0 +1,937 @@ +from typing import TYPE_CHECKING + +from ..utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_flax_available, + is_k_diffusion_available, + is_librosa_available, + is_note_seq_available, + is_onnx_available, + is_opencv_available, + is_sentencepiece_available, + is_torch_available, + is_torch_npu_available, + is_transformers_available, +) + + +# These modules contain pipelines from multiple libraries/frameworks +_dummy_objects = {} +_import_structure = { + "controlnet": [], + "controlnet_hunyuandit": [], + "controlnet_sd3": [], + "controlnet_xs": [], + "deprecated": [], + "latent_diffusion": [], + "ledits_pp": [], + "marigold": [], + "pag": [], + "stable_diffusion": [], + "stable_diffusion_xl": [], +} + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_pt_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_pt_objects)) +else: + _import_structure["auto_pipeline"] = [ + "AutoPipelineForImage2Image", + "AutoPipelineForInpainting", + "AutoPipelineForText2Image", + ] + _import_structure["consistency_models"] = ["ConsistencyModelPipeline"] + _import_structure["dance_diffusion"] = ["DanceDiffusionPipeline"] + _import_structure["ddim"] = ["DDIMPipeline"] + _import_structure["ddpm"] = ["DDPMPipeline"] + _import_structure["dit"] = ["DiTPipeline"] + _import_structure["latent_diffusion"].extend(["LDMSuperResolutionPipeline"]) + _import_structure["pipeline_utils"] = [ + "AudioPipelineOutput", + "DiffusionPipeline", + "StableDiffusionMixin", + "ImagePipelineOutput", + ] + _import_structure["deprecated"].extend( + [ + "PNDMPipeline", + "LDMPipeline", + "RePaintPipeline", + "ScoreSdeVePipeline", + "KarrasVePipeline", + ] + ) +try: + if not (is_torch_available() and is_librosa_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_torch_and_librosa_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_librosa_objects)) +else: + _import_structure["deprecated"].extend(["AudioDiffusionPipeline", "Mel"]) + +try: + if not (is_transformers_available() and is_torch_available() and is_note_seq_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_transformers_and_torch_and_note_seq_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_transformers_and_torch_and_note_seq_objects)) +else: + _import_structure["deprecated"].extend( + [ + "MidiProcessor", + "SpectrogramDiffusionPipeline", + ] + ) + +try: + if not (is_torch_available() and is_transformers_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_torch_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["deprecated"].extend( + [ + "VQDiffusionPipeline", + "AltDiffusionPipeline", + "AltDiffusionImg2ImgPipeline", + "CycleDiffusionPipeline", + "StableDiffusionInpaintPipelineLegacy", + "StableDiffusionPix2PixZeroPipeline", + "StableDiffusionParadigmsPipeline", + "StableDiffusionModelEditingPipeline", + "VersatileDiffusionDualGuidedPipeline", + "VersatileDiffusionImageVariationPipeline", + "VersatileDiffusionPipeline", + "VersatileDiffusionTextToImagePipeline", + ] + ) + _import_structure["allegro"] = ["AllegroPipeline"] + _import_structure["amused"] = ["AmusedImg2ImgPipeline", "AmusedInpaintPipeline", "AmusedPipeline"] + _import_structure["animatediff"] = [ + "AnimateDiffPipeline", + "AnimateDiffControlNetPipeline", + "AnimateDiffSDXLPipeline", + "AnimateDiffSparseControlNetPipeline", + "AnimateDiffVideoToVideoPipeline", + "AnimateDiffVideoToVideoControlNetPipeline", + ] + _import_structure["bria"] = ["BriaPipeline"] + _import_structure["bria_fibo"] = ["BriaFiboPipeline"] + _import_structure["flux"] = [ + "FluxControlPipeline", + "FluxControlInpaintPipeline", + "FluxControlImg2ImgPipeline", + "FluxControlNetPipeline", + "FluxControlNetImg2ImgPipeline", + "FluxControlNetInpaintPipeline", + "FluxImg2ImgPipeline", + "FluxInpaintPipeline", + "FluxPipeline", + "FluxFillPipeline", + "FluxPriorReduxPipeline", + "ReduxImageEncoder", + "FluxKontextPipeline", + "FluxKontextInpaintPipeline", + ] + _import_structure["prx"] = ["PRXPipeline"] + _import_structure["audioldm"] = ["AudioLDMPipeline"] + _import_structure["audioldm2"] = [ + "AudioLDM2Pipeline", + "AudioLDM2ProjectionModel", + "AudioLDM2UNet2DConditionModel", + ] + _import_structure["blip_diffusion"] = ["BlipDiffusionPipeline"] + _import_structure["chroma"] = ["ChromaPipeline", "ChromaImg2ImgPipeline"] + _import_structure["cogvideo"] = [ + "CogVideoXPipeline", + "CogVideoXImageToVideoPipeline", + "CogVideoXVideoToVideoPipeline", + "CogVideoXFunControlPipeline", + ] + _import_structure["cogview3"] = ["CogView3PlusPipeline"] + _import_structure["cogview4"] = ["CogView4Pipeline", "CogView4ControlPipeline"] + _import_structure["consisid"] = ["ConsisIDPipeline"] + _import_structure["cosmos"] = [ + "Cosmos2TextToImagePipeline", + "CosmosTextToWorldPipeline", + "CosmosVideoToWorldPipeline", + "Cosmos2VideoToWorldPipeline", + ] + _import_structure["controlnet"].extend( + [ + "BlipDiffusionControlNetPipeline", + "StableDiffusionControlNetImg2ImgPipeline", + "StableDiffusionControlNetInpaintPipeline", + "StableDiffusionControlNetPipeline", + "StableDiffusionXLControlNetImg2ImgPipeline", + "StableDiffusionXLControlNetInpaintPipeline", + "StableDiffusionXLControlNetPipeline", + "StableDiffusionXLControlNetUnionPipeline", + "StableDiffusionXLControlNetUnionInpaintPipeline", + "StableDiffusionXLControlNetUnionImg2ImgPipeline", + ] + ) + _import_structure["pag"].extend( + [ + "StableDiffusionControlNetPAGInpaintPipeline", + "AnimateDiffPAGPipeline", + "KolorsPAGPipeline", + "HunyuanDiTPAGPipeline", + "StableDiffusion3PAGPipeline", + "StableDiffusion3PAGImg2ImgPipeline", + "StableDiffusionPAGPipeline", + "StableDiffusionPAGImg2ImgPipeline", + "StableDiffusionPAGInpaintPipeline", + "StableDiffusionControlNetPAGPipeline", + "StableDiffusionXLPAGPipeline", + "StableDiffusionXLPAGInpaintPipeline", + "StableDiffusionXLControlNetPAGImg2ImgPipeline", + "StableDiffusionXLControlNetPAGPipeline", + "StableDiffusionXLPAGImg2ImgPipeline", + "PixArtSigmaPAGPipeline", + "SanaPAGPipeline", + ] + ) + _import_structure["controlnet_xs"].extend( + [ + "StableDiffusionControlNetXSPipeline", + "StableDiffusionXLControlNetXSPipeline", + ] + ) + _import_structure["controlnet_hunyuandit"].extend( + [ + "HunyuanDiTControlNetPipeline", + ] + ) + _import_structure["controlnet_sd3"].extend( + [ + "StableDiffusion3ControlNetPipeline", + "StableDiffusion3ControlNetInpaintingPipeline", + ] + ) + _import_structure["deepfloyd_if"] = [ + "IFImg2ImgPipeline", + "IFImg2ImgSuperResolutionPipeline", + "IFInpaintingPipeline", + "IFInpaintingSuperResolutionPipeline", + "IFPipeline", + "IFSuperResolutionPipeline", + ] + _import_structure["easyanimate"] = [ + "EasyAnimatePipeline", + "EasyAnimateInpaintPipeline", + "EasyAnimateControlPipeline", + ] + _import_structure["hidream_image"] = ["HiDreamImagePipeline"] + _import_structure["hunyuandit"] = ["HunyuanDiTPipeline"] + _import_structure["hunyuan_video"] = [ + "HunyuanVideoPipeline", + "HunyuanSkyreelsImageToVideoPipeline", + "HunyuanVideoImageToVideoPipeline", + "HunyuanVideoFramepackPipeline", + ] + _import_structure["hunyuan_image"] = ["HunyuanImagePipeline", "HunyuanImageRefinerPipeline"] + _import_structure["kandinsky"] = [ + "KandinskyCombinedPipeline", + "KandinskyImg2ImgCombinedPipeline", + "KandinskyImg2ImgPipeline", + "KandinskyInpaintCombinedPipeline", + "KandinskyInpaintPipeline", + "KandinskyPipeline", + "KandinskyPriorPipeline", + ] + _import_structure["kandinsky2_2"] = [ + "KandinskyV22CombinedPipeline", + "KandinskyV22ControlnetImg2ImgPipeline", + "KandinskyV22ControlnetPipeline", + "KandinskyV22Img2ImgCombinedPipeline", + "KandinskyV22Img2ImgPipeline", + "KandinskyV22InpaintCombinedPipeline", + "KandinskyV22InpaintPipeline", + "KandinskyV22Pipeline", + "KandinskyV22PriorEmb2EmbPipeline", + "KandinskyV22PriorPipeline", + ] + _import_structure["kandinsky3"] = [ + "Kandinsky3Img2ImgPipeline", + "Kandinsky3Pipeline", + ] + _import_structure["latent_consistency_models"] = [ + "LatentConsistencyModelImg2ImgPipeline", + "LatentConsistencyModelPipeline", + ] + _import_structure["latent_diffusion"].extend(["LDMTextToImagePipeline"]) + _import_structure["ledits_pp"].extend( + [ + "LEditsPPPipelineStableDiffusion", + "LEditsPPPipelineStableDiffusionXL", + ] + ) + _import_structure["latte"] = ["LattePipeline"] + _import_structure["ltx"] = [ + "LTXPipeline", + "LTXImageToVideoPipeline", + "LTXConditionPipeline", + "LTXLatentUpsamplePipeline", + ] + _import_structure["lumina"] = ["LuminaPipeline", "LuminaText2ImgPipeline"] + _import_structure["lumina2"] = ["Lumina2Pipeline", "Lumina2Text2ImgPipeline"] + _import_structure["lucy"] = ["LucyEditPipeline"] + _import_structure["marigold"].extend( + [ + "MarigoldDepthPipeline", + "MarigoldIntrinsicsPipeline", + "MarigoldNormalsPipeline", + ] + ) + _import_structure["mochi"] = ["MochiPipeline"] + _import_structure["musicldm"] = ["MusicLDMPipeline"] + _import_structure["omnigen"] = ["OmniGenPipeline"] + _import_structure["visualcloze"] = ["VisualClozePipeline", "VisualClozeGenerationPipeline"] + _import_structure["paint_by_example"] = ["PaintByExamplePipeline"] + _import_structure["pia"] = ["PIAPipeline"] + _import_structure["pixart_alpha"] = ["PixArtAlphaPipeline", "PixArtSigmaPipeline"] + _import_structure["sana"] = [ + "SanaPipeline", + "SanaSprintPipeline", + "SanaControlNetPipeline", + "SanaSprintImg2ImgPipeline", + ] + _import_structure["sana_video"] = [ + "SanaVideoPipeline", + "SanaImageToVideoPipeline", + ] + _import_structure["semantic_stable_diffusion"] = ["SemanticStableDiffusionPipeline"] + _import_structure["shap_e"] = ["ShapEImg2ImgPipeline", "ShapEPipeline"] + _import_structure["stable_audio"] = [ + "StableAudioProjectionModel", + "StableAudioPipeline", + ] + _import_structure["stable_cascade"] = [ + "StableCascadeCombinedPipeline", + "StableCascadeDecoderPipeline", + "StableCascadePriorPipeline", + ] + _import_structure["stable_diffusion"].extend( + [ + "CLIPImageProjection", + "StableDiffusionDepth2ImgPipeline", + "StableDiffusionImageVariationPipeline", + "StableDiffusionImg2ImgPipeline", + "StableDiffusionInpaintPipeline", + "StableDiffusionInstructPix2PixPipeline", + "StableDiffusionLatentUpscalePipeline", + "StableDiffusionPipeline", + "StableDiffusionUpscalePipeline", + "StableUnCLIPImg2ImgPipeline", + "StableUnCLIPPipeline", + "StableDiffusionLDM3DPipeline", + ] + ) + _import_structure["aura_flow"] = ["AuraFlowPipeline"] + _import_structure["stable_diffusion_3"] = [ + "StableDiffusion3Pipeline", + "StableDiffusion3Img2ImgPipeline", + "StableDiffusion3InpaintPipeline", + ] + _import_structure["stable_diffusion_attend_and_excite"] = ["StableDiffusionAttendAndExcitePipeline"] + _import_structure["stable_diffusion_safe"] = ["StableDiffusionPipelineSafe"] + _import_structure["stable_diffusion_sag"] = ["StableDiffusionSAGPipeline"] + _import_structure["stable_diffusion_gligen"] = [ + "StableDiffusionGLIGENPipeline", + "StableDiffusionGLIGENTextImagePipeline", + ] + _import_structure["stable_video_diffusion"] = ["StableVideoDiffusionPipeline"] + _import_structure["stable_diffusion_xl"].extend( + [ + "StableDiffusionXLImg2ImgPipeline", + "StableDiffusionXLInpaintPipeline", + "StableDiffusionXLInstructPix2PixPipeline", + "StableDiffusionXLPipeline", + ] + ) + _import_structure["stable_diffusion_diffedit"] = ["StableDiffusionDiffEditPipeline"] + _import_structure["stable_diffusion_ldm3d"] = ["StableDiffusionLDM3DPipeline"] + _import_structure["stable_diffusion_panorama"] = ["StableDiffusionPanoramaPipeline"] + _import_structure["t2i_adapter"] = [ + "StableDiffusionAdapterPipeline", + "StableDiffusionXLAdapterPipeline", + ] + _import_structure["text_to_video_synthesis"] = [ + "TextToVideoSDPipeline", + "TextToVideoZeroPipeline", + "TextToVideoZeroSDXLPipeline", + "VideoToVideoSDPipeline", + ] + _import_structure["i2vgen_xl"] = ["I2VGenXLPipeline"] + _import_structure["unclip"] = ["UnCLIPImageVariationPipeline", "UnCLIPPipeline"] + _import_structure["unidiffuser"] = [ + "ImageTextPipelineOutput", + "UniDiffuserModel", + "UniDiffuserPipeline", + "UniDiffuserTextDecoder", + ] + _import_structure["wuerstchen"] = [ + "WuerstchenCombinedPipeline", + "WuerstchenDecoderPipeline", + "WuerstchenPriorPipeline", + ] + _import_structure["wan"] = [ + "WanPipeline", + "WanImageToVideoPipeline", + "WanVideoToVideoPipeline", + "WanVACEPipeline", + "WanAnimatePipeline", + ] + _import_structure["z_image"] = ["ZImagePipeline"] + _import_structure["kandinsky5"] = ["Kandinsky5T2VPipeline"] + _import_structure["skyreels_v2"] = [ + "SkyReelsV2DiffusionForcingPipeline", + "SkyReelsV2DiffusionForcingImageToVideoPipeline", + "SkyReelsV2DiffusionForcingVideoToVideoPipeline", + "SkyReelsV2ImageToVideoPipeline", + "SkyReelsV2Pipeline", + ] + _import_structure["qwenimage"] = [ + "QwenImagePipeline", + "QwenImageImg2ImgPipeline", + "QwenImageInpaintPipeline", + "QwenImageEditPipeline", + "QwenImageEditPlusPipeline", + "QwenImageEditInpaintPipeline", + "QwenImageControlNetInpaintPipeline", + "QwenImageControlNetPipeline", + ] + _import_structure["chronoedit"] = ["ChronoEditPipeline"] +try: + if not is_onnx_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_onnx_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_onnx_objects)) +else: + _import_structure["onnx_utils"] = ["OnnxRuntimeModel"] +try: + if not (is_torch_available() and is_transformers_available() and is_onnx_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_torch_and_transformers_and_onnx_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_and_onnx_objects)) +else: + _import_structure["stable_diffusion"].extend( + [ + "OnnxStableDiffusionImg2ImgPipeline", + "OnnxStableDiffusionInpaintPipeline", + "OnnxStableDiffusionPipeline", + "OnnxStableDiffusionUpscalePipeline", + "StableDiffusionOnnxPipeline", + ] + ) + +try: + if not (is_torch_available() and is_transformers_available() and is_k_diffusion_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import ( + dummy_torch_and_transformers_and_k_diffusion_objects, + ) + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_and_k_diffusion_objects)) +else: + _import_structure["stable_diffusion_k_diffusion"] = [ + "StableDiffusionKDiffusionPipeline", + "StableDiffusionXLKDiffusionPipeline", + ] + +try: + if not (is_torch_available() and is_transformers_available() and is_sentencepiece_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import ( + dummy_torch_and_transformers_and_sentencepiece_objects, + ) + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_and_sentencepiece_objects)) +else: + _import_structure["kolors"] = [ + "KolorsPipeline", + "KolorsImg2ImgPipeline", + ] + +try: + if not (is_torch_available() and is_transformers_available() and is_opencv_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import ( + dummy_torch_and_transformers_and_opencv_objects, + ) + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_and_opencv_objects)) +else: + _import_structure["consisid"] = ["ConsisIDPipeline"] + +try: + if not is_flax_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_flax_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_flax_objects)) +else: + _import_structure["pipeline_flax_utils"] = ["FlaxDiffusionPipeline"] +try: + if not (is_flax_available() and is_transformers_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ..utils import dummy_flax_and_transformers_objects # noqa F403 + + _dummy_objects.update(get_objects_from_module(dummy_flax_and_transformers_objects)) +else: + _import_structure["controlnet"].extend(["FlaxStableDiffusionControlNetPipeline"]) + _import_structure["stable_diffusion"].extend( + [ + "FlaxStableDiffusionImg2ImgPipeline", + "FlaxStableDiffusionInpaintPipeline", + "FlaxStableDiffusionPipeline", + ] + ) + _import_structure["stable_diffusion_xl"].extend( + [ + "FlaxStableDiffusionXLPipeline", + ] + ) + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_pt_objects import * # noqa F403 + + else: + from .auto_pipeline import ( + AutoPipelineForImage2Image, + AutoPipelineForInpainting, + AutoPipelineForText2Image, + ) + from .consistency_models import ConsistencyModelPipeline + from .dance_diffusion import DanceDiffusionPipeline + from .ddim import DDIMPipeline + from .ddpm import DDPMPipeline + from .deprecated import KarrasVePipeline, LDMPipeline, PNDMPipeline, RePaintPipeline, ScoreSdeVePipeline + from .dit import DiTPipeline + from .latent_diffusion import LDMSuperResolutionPipeline + from .pipeline_utils import ( + AudioPipelineOutput, + DiffusionPipeline, + ImagePipelineOutput, + StableDiffusionMixin, + ) + + try: + if not (is_torch_available() and is_librosa_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_torch_and_librosa_objects import * + else: + from .deprecated import AudioDiffusionPipeline, Mel + + try: + if not (is_torch_available() and is_transformers_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_torch_and_transformers_objects import * + else: + from .allegro import AllegroPipeline + from .amused import AmusedImg2ImgPipeline, AmusedInpaintPipeline, AmusedPipeline + from .animatediff import ( + AnimateDiffControlNetPipeline, + AnimateDiffPipeline, + AnimateDiffSDXLPipeline, + AnimateDiffSparseControlNetPipeline, + AnimateDiffVideoToVideoControlNetPipeline, + AnimateDiffVideoToVideoPipeline, + ) + from .audioldm import AudioLDMPipeline + from .audioldm2 import ( + AudioLDM2Pipeline, + AudioLDM2ProjectionModel, + AudioLDM2UNet2DConditionModel, + ) + from .aura_flow import AuraFlowPipeline + from .blip_diffusion import BlipDiffusionPipeline + from .bria import BriaPipeline + from .bria_fibo import BriaFiboPipeline + from .chroma import ChromaImg2ImgPipeline, ChromaPipeline + from .chronoedit import ChronoEditPipeline + from .cogvideo import ( + CogVideoXFunControlPipeline, + CogVideoXImageToVideoPipeline, + CogVideoXPipeline, + CogVideoXVideoToVideoPipeline, + ) + from .cogview3 import CogView3PlusPipeline + from .cogview4 import CogView4ControlPipeline, CogView4Pipeline + from .controlnet import ( + BlipDiffusionControlNetPipeline, + StableDiffusionControlNetImg2ImgPipeline, + StableDiffusionControlNetInpaintPipeline, + StableDiffusionControlNetPipeline, + StableDiffusionXLControlNetImg2ImgPipeline, + StableDiffusionXLControlNetInpaintPipeline, + StableDiffusionXLControlNetPipeline, + StableDiffusionXLControlNetUnionImg2ImgPipeline, + StableDiffusionXLControlNetUnionInpaintPipeline, + StableDiffusionXLControlNetUnionPipeline, + ) + from .controlnet_hunyuandit import ( + HunyuanDiTControlNetPipeline, + ) + from .controlnet_sd3 import StableDiffusion3ControlNetInpaintingPipeline, StableDiffusion3ControlNetPipeline + from .controlnet_xs import ( + StableDiffusionControlNetXSPipeline, + StableDiffusionXLControlNetXSPipeline, + ) + from .cosmos import ( + Cosmos2TextToImagePipeline, + Cosmos2VideoToWorldPipeline, + CosmosTextToWorldPipeline, + CosmosVideoToWorldPipeline, + ) + from .deepfloyd_if import ( + IFImg2ImgPipeline, + IFImg2ImgSuperResolutionPipeline, + IFInpaintingPipeline, + IFInpaintingSuperResolutionPipeline, + IFPipeline, + IFSuperResolutionPipeline, + ) + from .deprecated import ( + AltDiffusionImg2ImgPipeline, + AltDiffusionPipeline, + CycleDiffusionPipeline, + StableDiffusionInpaintPipelineLegacy, + StableDiffusionModelEditingPipeline, + StableDiffusionParadigmsPipeline, + StableDiffusionPix2PixZeroPipeline, + VersatileDiffusionDualGuidedPipeline, + VersatileDiffusionImageVariationPipeline, + VersatileDiffusionPipeline, + VersatileDiffusionTextToImagePipeline, + VQDiffusionPipeline, + ) + from .easyanimate import ( + EasyAnimateControlPipeline, + EasyAnimateInpaintPipeline, + EasyAnimatePipeline, + ) + from .flux import ( + FluxControlImg2ImgPipeline, + FluxControlInpaintPipeline, + FluxControlNetImg2ImgPipeline, + FluxControlNetInpaintPipeline, + FluxControlNetPipeline, + FluxControlPipeline, + FluxFillPipeline, + FluxImg2ImgPipeline, + FluxInpaintPipeline, + FluxKontextInpaintPipeline, + FluxKontextPipeline, + FluxPipeline, + FluxPriorReduxPipeline, + ReduxImageEncoder, + ) + from .hidream_image import HiDreamImagePipeline + from .hunyuan_image import HunyuanImagePipeline, HunyuanImageRefinerPipeline + from .hunyuan_video import ( + HunyuanSkyreelsImageToVideoPipeline, + HunyuanVideoFramepackPipeline, + HunyuanVideoImageToVideoPipeline, + HunyuanVideoPipeline, + ) + from .hunyuandit import HunyuanDiTPipeline + from .i2vgen_xl import I2VGenXLPipeline + from .kandinsky import ( + KandinskyCombinedPipeline, + KandinskyImg2ImgCombinedPipeline, + KandinskyImg2ImgPipeline, + KandinskyInpaintCombinedPipeline, + KandinskyInpaintPipeline, + KandinskyPipeline, + KandinskyPriorPipeline, + ) + from .kandinsky2_2 import ( + KandinskyV22CombinedPipeline, + KandinskyV22ControlnetImg2ImgPipeline, + KandinskyV22ControlnetPipeline, + KandinskyV22Img2ImgCombinedPipeline, + KandinskyV22Img2ImgPipeline, + KandinskyV22InpaintCombinedPipeline, + KandinskyV22InpaintPipeline, + KandinskyV22Pipeline, + KandinskyV22PriorEmb2EmbPipeline, + KandinskyV22PriorPipeline, + ) + from .kandinsky3 import ( + Kandinsky3Img2ImgPipeline, + Kandinsky3Pipeline, + ) + from .kandinsky5 import Kandinsky5T2VPipeline + from .latent_consistency_models import ( + LatentConsistencyModelImg2ImgPipeline, + LatentConsistencyModelPipeline, + ) + from .latent_diffusion import LDMTextToImagePipeline + from .latte import LattePipeline + from .ledits_pp import ( + LEditsPPDiffusionPipelineOutput, + LEditsPPInversionPipelineOutput, + LEditsPPPipelineStableDiffusion, + LEditsPPPipelineStableDiffusionXL, + ) + from .ltx import LTXConditionPipeline, LTXImageToVideoPipeline, LTXLatentUpsamplePipeline, LTXPipeline + from .lucy import LucyEditPipeline + from .lumina import LuminaPipeline, LuminaText2ImgPipeline + from .lumina2 import Lumina2Pipeline, Lumina2Text2ImgPipeline + from .marigold import ( + MarigoldDepthPipeline, + MarigoldIntrinsicsPipeline, + MarigoldNormalsPipeline, + ) + from .mochi import MochiPipeline + from .musicldm import MusicLDMPipeline + from .omnigen import OmniGenPipeline + from .pag import ( + AnimateDiffPAGPipeline, + HunyuanDiTPAGPipeline, + KolorsPAGPipeline, + PixArtSigmaPAGPipeline, + SanaPAGPipeline, + StableDiffusion3PAGImg2ImgPipeline, + StableDiffusion3PAGPipeline, + StableDiffusionControlNetPAGInpaintPipeline, + StableDiffusionControlNetPAGPipeline, + StableDiffusionPAGImg2ImgPipeline, + StableDiffusionPAGInpaintPipeline, + StableDiffusionPAGPipeline, + StableDiffusionXLControlNetPAGImg2ImgPipeline, + StableDiffusionXLControlNetPAGPipeline, + StableDiffusionXLPAGImg2ImgPipeline, + StableDiffusionXLPAGInpaintPipeline, + StableDiffusionXLPAGPipeline, + ) + from .paint_by_example import PaintByExamplePipeline + from .pia import PIAPipeline + from .pixart_alpha import PixArtAlphaPipeline, PixArtSigmaPipeline + from .prx import PRXPipeline + from .qwenimage import ( + QwenImageControlNetInpaintPipeline, + QwenImageControlNetPipeline, + QwenImageEditInpaintPipeline, + QwenImageEditPipeline, + QwenImageEditPlusPipeline, + QwenImageImg2ImgPipeline, + QwenImageInpaintPipeline, + QwenImagePipeline, + ) + from .sana import ( + SanaControlNetPipeline, + SanaPipeline, + SanaSprintImg2ImgPipeline, + SanaSprintPipeline, + ) + from .sana_video import SanaImageToVideoPipeline, SanaVideoPipeline + from .semantic_stable_diffusion import SemanticStableDiffusionPipeline + from .shap_e import ShapEImg2ImgPipeline, ShapEPipeline + from .stable_audio import StableAudioPipeline, StableAudioProjectionModel + from .stable_cascade import ( + StableCascadeCombinedPipeline, + StableCascadeDecoderPipeline, + StableCascadePriorPipeline, + ) + from .stable_diffusion import ( + CLIPImageProjection, + StableDiffusionDepth2ImgPipeline, + StableDiffusionImageVariationPipeline, + StableDiffusionImg2ImgPipeline, + StableDiffusionInpaintPipeline, + StableDiffusionInstructPix2PixPipeline, + StableDiffusionLatentUpscalePipeline, + StableDiffusionPipeline, + StableDiffusionUpscalePipeline, + StableUnCLIPImg2ImgPipeline, + StableUnCLIPPipeline, + ) + from .stable_diffusion_3 import ( + StableDiffusion3Img2ImgPipeline, + StableDiffusion3InpaintPipeline, + StableDiffusion3Pipeline, + ) + from .stable_diffusion_attend_and_excite import StableDiffusionAttendAndExcitePipeline + from .stable_diffusion_diffedit import StableDiffusionDiffEditPipeline + from .stable_diffusion_gligen import StableDiffusionGLIGENPipeline, StableDiffusionGLIGENTextImagePipeline + from .stable_diffusion_ldm3d import StableDiffusionLDM3DPipeline + from .stable_diffusion_panorama import StableDiffusionPanoramaPipeline + from .stable_diffusion_safe import StableDiffusionPipelineSafe + from .stable_diffusion_sag import StableDiffusionSAGPipeline + from .stable_diffusion_xl import ( + StableDiffusionXLImg2ImgPipeline, + StableDiffusionXLInpaintPipeline, + StableDiffusionXLInstructPix2PixPipeline, + StableDiffusionXLPipeline, + ) + from .stable_video_diffusion import StableVideoDiffusionPipeline + from .t2i_adapter import ( + StableDiffusionAdapterPipeline, + StableDiffusionXLAdapterPipeline, + ) + from .text_to_video_synthesis import ( + TextToVideoSDPipeline, + TextToVideoZeroPipeline, + TextToVideoZeroSDXLPipeline, + VideoToVideoSDPipeline, + ) + from .unclip import UnCLIPImageVariationPipeline, UnCLIPPipeline + from .unidiffuser import ( + ImageTextPipelineOutput, + UniDiffuserModel, + UniDiffuserPipeline, + UniDiffuserTextDecoder, + ) + from .visualcloze import VisualClozeGenerationPipeline, VisualClozePipeline + from .wan import ( + WanAnimatePipeline, + WanImageToVideoPipeline, + WanPipeline, + WanVACEPipeline, + WanVideoToVideoPipeline, + ) + from .wuerstchen import ( + WuerstchenCombinedPipeline, + WuerstchenDecoderPipeline, + WuerstchenPriorPipeline, + ) + from .z_image import ZImagePipeline + + try: + if not is_onnx_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_onnx_objects import * # noqa F403 + + else: + from .onnx_utils import OnnxRuntimeModel + + try: + if not (is_torch_available() and is_transformers_available() and is_onnx_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_torch_and_transformers_and_onnx_objects import * + else: + from .stable_diffusion import ( + OnnxStableDiffusionImg2ImgPipeline, + OnnxStableDiffusionInpaintPipeline, + OnnxStableDiffusionPipeline, + OnnxStableDiffusionUpscalePipeline, + StableDiffusionOnnxPipeline, + ) + + try: + if not (is_torch_available() and is_transformers_available() and is_k_diffusion_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_torch_and_transformers_and_k_diffusion_objects import * + else: + from .stable_diffusion_k_diffusion import ( + StableDiffusionKDiffusionPipeline, + StableDiffusionXLKDiffusionPipeline, + ) + + try: + if not (is_torch_available() and is_transformers_available() and is_sentencepiece_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_torch_and_transformers_and_sentencepiece_objects import * + else: + from .kolors import ( + KolorsImg2ImgPipeline, + KolorsPipeline, + ) + + try: + if not (is_torch_available() and is_transformers_available() and is_opencv_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_torch_and_transformers_and_opencv_objects import * + else: + from .consisid import ConsisIDPipeline + + try: + if not is_flax_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_flax_objects import * # noqa F403 + else: + from .pipeline_flax_utils import FlaxDiffusionPipeline + + try: + if not (is_flax_available() and is_transformers_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_flax_and_transformers_objects import * + else: + from .controlnet import FlaxStableDiffusionControlNetPipeline + from .stable_diffusion import ( + FlaxStableDiffusionImg2ImgPipeline, + FlaxStableDiffusionInpaintPipeline, + FlaxStableDiffusionPipeline, + ) + from .stable_diffusion_xl import ( + FlaxStableDiffusionXLPipeline, + ) + + try: + if not (is_transformers_available() and is_torch_available() and is_note_seq_available()): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + from ..utils.dummy_transformers_and_torch_and_note_seq_objects import * # noqa F403 + + else: + from .deprecated import ( + MidiProcessor, + SpectrogramDiffusionPipeline, + ) + + from .skyreels_v2 import ( + SkyReelsV2DiffusionForcingImageToVideoPipeline, + SkyReelsV2DiffusionForcingPipeline, + SkyReelsV2DiffusionForcingVideoToVideoPipeline, + SkyReelsV2ImageToVideoPipeline, + SkyReelsV2Pipeline, + ) + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/__init__.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..f95b3e5a0bed52ca74a3fd5b7f1505a5e83b2d28 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/__init__.py @@ -0,0 +1,50 @@ +from typing import TYPE_CHECKING + +from ...utils import ( + DIFFUSERS_SLOW_IMPORT, + OptionalDependencyNotAvailable, + _LazyModule, + get_objects_from_module, + is_torch_available, + is_transformers_available, +) + + +_dummy_objects = {} +_import_structure = {} + +try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + from ...utils import dummy_torch_and_transformers_objects # noqa: F403 + + _dummy_objects.update(get_objects_from_module(dummy_torch_and_transformers_objects)) +else: + _import_structure["pipeline_output"] = ["ZImagePipelineOutput"] + _import_structure["pipeline_z_image"] = ["ZImagePipeline"] + + +if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT: + try: + if not (is_transformers_available() and is_torch_available()): + raise OptionalDependencyNotAvailable() + + except OptionalDependencyNotAvailable: + from ...utils.dummy_torch_and_transformers_objects import * + else: + from .pipeline_output import ZImagePipelineOutput + from .pipeline_z_image import ZImagePipeline + +else: + import sys + + sys.modules[__name__] = _LazyModule( + __name__, + globals()["__file__"], + _import_structure, + module_spec=__spec__, + ) + + for name, value in _dummy_objects.items(): + setattr(sys.modules[__name__], name, value) diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/pipeline_output.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/pipeline_output.py new file mode 100644 index 0000000000000000000000000000000000000000..69a320fc036a95a590ab007725f3e8ddc38427c2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/pipeline_output.py @@ -0,0 +1,35 @@ +# Copyright 2025 Alibaba Z-Image Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import List, Union + +import numpy as np +import PIL.Image + +from diffusers.utils import BaseOutput + + +@dataclass +class ZImagePipelineOutput(BaseOutput): + """ + Output class for Z-Image pipelines. + + Args: + images (`List[PIL.Image.Image]` or `np.ndarray`) + List of denoised PIL images of length `batch_size` or numpy array of shape `(batch_size, height, width, + num_channels)`. PIL images or numpy array present the denoised images of the diffusion pipeline. + """ + + images: Union[List[PIL.Image.Image], np.ndarray] diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/pipeline_z_image.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/pipeline_z_image.py new file mode 100644 index 0000000000000000000000000000000000000000..cc4e9d52019bc3749b6c73457f973cec7f834b9d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/pipelines/z_image/pipeline_z_image.py @@ -0,0 +1,607 @@ +# Copyright 2025 Alibaba Z-Image Team and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import inspect +from typing import Any, Callable, Dict, List, Optional, Union + +import torch +from transformers import AutoTokenizer, PreTrainedModel + +from ...image_processor import VaeImageProcessor +from ...loaders import FromSingleFileMixin +from ...models.autoencoders import AutoencoderKL +from ...models.transformers import ZImageTransformer2DModel +from ...pipelines.pipeline_utils import DiffusionPipeline +from ...schedulers import FlowMatchEulerDiscreteScheduler +from ...utils import logging, replace_example_docstring +from ...utils.torch_utils import randn_tensor +from .pipeline_output import ZImagePipelineOutput + + +logger = logging.get_logger(__name__) # pylint: disable=invalid-name + +EXAMPLE_DOC_STRING = """ + Examples: + ```py + >>> import torch + >>> from diffusers import ZImagePipeline + + >>> pipe = ZImagePipeline.from_pretrained("Z-a-o/Z-Image-Turbo", torch_dtype=torch.bfloat16) + >>> pipe.to("cuda") + + >>> # Optionally, set the attention backend to flash-attn 2 or 3, default is SDPA in PyTorch. + >>> # (1) Use flash attention 2 + >>> # pipe.transformer.set_attention_backend("flash") + >>> # (2) Use flash attention 3 + >>> # pipe.transformer.set_attention_backend("_flash_3") + + >>> prompt = "一幅为名为“造相「Z-IMAGE-TURBO」”的项目设计的创意海报。画面巧妙地将文字概念视觉化：一辆复古蒸汽小火车化身为巨大的拉链头，正拉开厚厚的冬日积雪，展露出一个生机盎然的春天。" + >>> image = pipe( + ... prompt, + ... height=1024, + ... width=1024, + ... num_inference_steps=9, + ... guidance_scale=0.0, + ... generator=torch.Generator("cuda").manual_seed(42), + ... ).images[0] + >>> image.save("zimage.png") + ``` +""" + + +# Copied from diffusers.pipelines.flux.pipeline_flux.calculate_shift +def calculate_shift( + image_seq_len, + base_seq_len: int = 256, + max_seq_len: int = 4096, + base_shift: float = 0.5, + max_shift: float = 1.15, +): + m = (max_shift - base_shift) / (max_seq_len - base_seq_len) + b = base_shift - m * base_seq_len + mu = image_seq_len * m + b + return mu + + +# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps +def retrieve_timesteps( + scheduler, + num_inference_steps: Optional[int] = None, + device: Optional[Union[str, torch.device]] = None, + timesteps: Optional[List[int]] = None, + sigmas: Optional[List[float]] = None, + **kwargs, +): + r""" + Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles + custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`. + + Args: + scheduler (`SchedulerMixin`): + The scheduler to get timesteps from. + num_inference_steps (`int`): + The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps` + must be `None`. + device (`str` or `torch.device`, *optional*): + The device to which the timesteps should be moved to. If `None`, the timesteps are not moved. + timesteps (`List[int]`, *optional*): + Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed, + `num_inference_steps` and `sigmas` must be `None`. + sigmas (`List[float]`, *optional*): + Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed, + `num_inference_steps` and `timesteps` must be `None`. + + Returns: + `Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the + second element is the number of inference steps. + """ + if timesteps is not None and sigmas is not None: + raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values") + if timesteps is not None: + accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accepts_timesteps: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" timestep schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + elif sigmas is not None: + accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys()) + if not accept_sigmas: + raise ValueError( + f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom" + f" sigmas schedules. Please check whether you are using the correct scheduler." + ) + scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs) + timesteps = scheduler.timesteps + num_inference_steps = len(timesteps) + else: + scheduler.set_timesteps(num_inference_steps, device=device, **kwargs) + timesteps = scheduler.timesteps + return timesteps, num_inference_steps + + +class ZImagePipeline(DiffusionPipeline, FromSingleFileMixin): + model_cpu_offload_seq = "text_encoder->transformer->vae" + _optional_components = [] + _callback_tensor_inputs = ["latents", "prompt_embeds"] + + def __init__( + self, + scheduler: FlowMatchEulerDiscreteScheduler, + vae: AutoencoderKL, + text_encoder: PreTrainedModel, + tokenizer: AutoTokenizer, + transformer: ZImageTransformer2DModel, + ): + super().__init__() + + self.register_modules( + vae=vae, + text_encoder=text_encoder, + tokenizer=tokenizer, + scheduler=scheduler, + transformer=transformer, + ) + self.vae_scale_factor = ( + 2 ** (len(self.vae.config.block_out_channels) - 1) if hasattr(self, "vae") and self.vae is not None else 8 + ) + self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor * 2) + + def encode_prompt( + self, + prompt: Union[str, List[str]], + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + num_images_per_prompt: int = 1, + do_classifier_free_guidance: bool = True, + negative_prompt: Optional[Union[str, List[str]]] = None, + prompt_embeds: Optional[List[torch.FloatTensor]] = None, + negative_prompt_embeds: Optional[torch.FloatTensor] = None, + max_sequence_length: int = 512, + lora_scale: Optional[float] = None, + ): + prompt = [prompt] if isinstance(prompt, str) else prompt + prompt_embeds = self._encode_prompt( + prompt=prompt, + device=device, + dtype=dtype, + num_images_per_prompt=num_images_per_prompt, + prompt_embeds=prompt_embeds, + max_sequence_length=max_sequence_length, + ) + + if do_classifier_free_guidance: + if negative_prompt is None: + negative_prompt = ["" for _ in prompt] + else: + negative_prompt = [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt + assert len(prompt) == len(negative_prompt) + negative_prompt_embeds = self._encode_prompt( + prompt=negative_prompt, + device=device, + dtype=dtype, + num_images_per_prompt=num_images_per_prompt, + prompt_embeds=negative_prompt_embeds, + max_sequence_length=max_sequence_length, + ) + else: + negative_prompt_embeds = [] + return prompt_embeds, negative_prompt_embeds + + def _encode_prompt( + self, + prompt: Union[str, List[str]], + device: Optional[torch.device] = None, + dtype: Optional[torch.dtype] = None, + num_images_per_prompt: int = 1, + prompt_embeds: Optional[List[torch.FloatTensor]] = None, + max_sequence_length: int = 512, + ) -> List[torch.FloatTensor]: + assert num_images_per_prompt == 1 + device = device or self._execution_device + + if prompt_embeds is not None: + return prompt_embeds + + if isinstance(prompt, str): + prompt = [prompt] + + for i, prompt_item in enumerate(prompt): + messages = [ + {"role": "user", "content": prompt_item}, + ] + prompt_item = self.tokenizer.apply_chat_template( + messages, + tokenize=False, + add_generation_prompt=True, + enable_thinking=True, + ) + prompt[i] = prompt_item + + text_inputs = self.tokenizer( + prompt, + padding="max_length", + max_length=max_sequence_length, + truncation=True, + return_tensors="pt", + ) + + text_input_ids = text_inputs.input_ids.to(device) + prompt_masks = text_inputs.attention_mask.to(device).bool() + + prompt_embeds = self.text_encoder( + input_ids=text_input_ids, + attention_mask=prompt_masks, + output_hidden_states=True, + ).hidden_states[-2] + + embeddings_list = [] + + for i in range(len(prompt_embeds)): + embeddings_list.append(prompt_embeds[i][prompt_masks[i]]) + + return embeddings_list + + def prepare_latents( + self, + batch_size, + num_channels_latents, + height, + width, + dtype, + device, + generator, + latents=None, + ): + height = 2 * (int(height) // (self.vae_scale_factor * 2)) + width = 2 * (int(width) // (self.vae_scale_factor * 2)) + + shape = (batch_size, num_channels_latents, height, width) + + if latents is None: + latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype) + else: + if latents.shape != shape: + raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {shape}") + latents = latents.to(device) + return latents + + @property + def guidance_scale(self): + return self._guidance_scale + + @property + def do_classifier_free_guidance(self): + return self._guidance_scale > 1 + + @property + def joint_attention_kwargs(self): + return self._joint_attention_kwargs + + @property + def num_timesteps(self): + return self._num_timesteps + + @property + def interrupt(self): + return self._interrupt + + @torch.no_grad() + @replace_example_docstring(EXAMPLE_DOC_STRING) + def __call__( + self, + prompt: Union[str, List[str]] = None, + height: Optional[int] = None, + width: Optional[int] = None, + num_inference_steps: int = 50, + sigmas: Optional[List[float]] = None, + guidance_scale: float = 5.0, + cfg_normalization: bool = False, + cfg_truncation: float = 1.0, + negative_prompt: Optional[Union[str, List[str]]] = None, + num_images_per_prompt: Optional[int] = 1, + generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None, + latents: Optional[torch.FloatTensor] = None, + prompt_embeds: Optional[List[torch.FloatTensor]] = None, + negative_prompt_embeds: Optional[List[torch.FloatTensor]] = None, + output_type: Optional[str] = "pil", + return_dict: bool = True, + joint_attention_kwargs: Optional[Dict[str, Any]] = None, + callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None, + callback_on_step_end_tensor_inputs: List[str] = ["latents"], + max_sequence_length: int = 512, + ): + r""" + Function invoked when calling the pipeline for generation. + + Args: + prompt (`str` or `List[str]`, *optional*): + The prompt or prompts to guide the image generation. If not defined, one has to pass `prompt_embeds`. + instead. + height (`int`, *optional*, defaults to 1024): + The height in pixels of the generated image. + width (`int`, *optional*, defaults to 1024): + The width in pixels of the generated image. + num_inference_steps (`int`, *optional*, defaults to 50): + The number of denoising steps. More denoising steps usually lead to a higher quality image at the + expense of slower inference. + sigmas (`List[float]`, *optional*): + Custom sigmas to use for the denoising process with schedulers which support a `sigmas` argument in + their `set_timesteps` method. If not defined, the default behavior when `num_inference_steps` is passed + will be used. + guidance_scale (`float`, *optional*, defaults to 5.0): + Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). + `guidance_scale` is defined as `w` of equation 2. of [Imagen + Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > + 1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, + usually at the expense of lower image quality. + cfg_normalization (`bool`, *optional*, defaults to False): + Whether to apply configuration normalization. + cfg_truncation (`float`, *optional*, defaults to 1.0): + The truncation value for configuration. + negative_prompt (`str` or `List[str]`, *optional*): + The prompt or prompts not to guide the image generation. If not defined, one has to pass + `negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is + less than `1`). + num_images_per_prompt (`int`, *optional*, defaults to 1): + The number of images to generate per prompt. + generator (`torch.Generator` or `List[torch.Generator]`, *optional*): + One or a list of [torch generator(s)](https://pytorch.org/docs/stable/generated/torch.Generator.html) + to make generation deterministic. + latents (`torch.FloatTensor`, *optional*): + Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image + generation. Can be used to tweak the same generation with different prompts. If not provided, a latents + tensor will be generated by sampling using the supplied random `generator`. + prompt_embeds (`List[torch.FloatTensor]`, *optional*): + Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not + provided, text embeddings will be generated from `prompt` input argument. + negative_prompt_embeds (`List[torch.FloatTensor]`, *optional*): + Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt + weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input + argument. + output_type (`str`, *optional*, defaults to `"pil"`): + The output format of the generate image. Choose between + [PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. + return_dict (`bool`, *optional*, defaults to `True`): + Whether or not to return a [`~pipelines.stable_diffusion.ZImagePipelineOutput`] instead of a plain + tuple. + joint_attention_kwargs (`dict`, *optional*): + A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under + `self.processor` in + [diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + callback_on_step_end (`Callable`, *optional*): + A function that calls at the end of each denoising steps during the inference. The function is called + with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int, + callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by + `callback_on_step_end_tensor_inputs`. + callback_on_step_end_tensor_inputs (`List`, *optional*): + The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list + will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the + `._callback_tensor_inputs` attribute of your pipeline class. + max_sequence_length (`int`, *optional*, defaults to 512): + Maximum sequence length to use with the `prompt`. + + Examples: + + Returns: + [`~pipelines.z_image.ZImagePipelineOutput`] or `tuple`: [`~pipelines.z_image.ZImagePipelineOutput`] if + `return_dict` is True, otherwise a `tuple`. When returning a tuple, the first element is a list with the + generated images. + """ + height = height or 1024 + width = width or 1024 + + vae_scale = self.vae_scale_factor * 2 + if height % vae_scale != 0: + raise ValueError( + f"Height must be divisible by {vae_scale} (got {height}). " + f"Please adjust the height to a multiple of {vae_scale}." + ) + if width % vae_scale != 0: + raise ValueError( + f"Width must be divisible by {vae_scale} (got {width}). " + f"Please adjust the width to a multiple of {vae_scale}." + ) + + assert self.dtype == torch.bfloat16 + dtype = self.dtype + device = self._execution_device + + self._guidance_scale = guidance_scale + self._joint_attention_kwargs = joint_attention_kwargs + self._interrupt = False + self._cfg_normalization = cfg_normalization + self._cfg_truncation = cfg_truncation + # 2. Define call parameters + if prompt is not None and isinstance(prompt, str): + batch_size = 1 + elif prompt is not None and isinstance(prompt, list): + batch_size = len(prompt) + else: + batch_size = len(prompt_embeds) + + lora_scale = ( + self.joint_attention_kwargs.get("scale", None) if self.joint_attention_kwargs is not None else None + ) + + # If prompt_embeds is provided and prompt is None, skip encoding + if prompt_embeds is not None and prompt is None: + if self.do_classifier_free_guidance and negative_prompt_embeds is None: + raise ValueError( + "When `prompt_embeds` is provided without `prompt`, " + "`negative_prompt_embeds` must also be provided for classifier-free guidance." + ) + else: + ( + prompt_embeds, + negative_prompt_embeds, + ) = self.encode_prompt( + prompt=prompt, + negative_prompt=negative_prompt, + do_classifier_free_guidance=self.do_classifier_free_guidance, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_prompt_embeds, + dtype=dtype, + device=device, + num_images_per_prompt=num_images_per_prompt, + max_sequence_length=max_sequence_length, + lora_scale=lora_scale, + ) + + # 4. Prepare latent variables + num_channels_latents = self.transformer.in_channels + + latents = self.prepare_latents( + batch_size * num_images_per_prompt, + num_channels_latents, + height, + width, + torch.float32, + device, + generator, + latents, + ) + image_seq_len = (latents.shape[2] // 2) * (latents.shape[3] // 2) + + # 5. Prepare timesteps + mu = calculate_shift( + image_seq_len, + self.scheduler.config.get("base_image_seq_len", 256), + self.scheduler.config.get("max_image_seq_len", 4096), + self.scheduler.config.get("base_shift", 0.5), + self.scheduler.config.get("max_shift", 1.15), + ) + self.scheduler.sigma_min = 0.0 + scheduler_kwargs = {"mu": mu} + timesteps, num_inference_steps = retrieve_timesteps( + self.scheduler, + num_inference_steps, + device, + sigmas=sigmas, + **scheduler_kwargs, + ) + num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0) + self._num_timesteps = len(timesteps) + + # 6. Denoising loop + with self.progress_bar(total=num_inference_steps) as progress_bar: + for i, t in enumerate(timesteps): + if self.interrupt: + continue + + # broadcast to batch dimension in a way that's compatible with ONNX/Core ML + timestep = t.expand(latents.shape[0]) + timestep = (1000 - timestep) / 1000 + # Normalized time for time-aware config (0 at start, 1 at end) + t_norm = timestep[0].item() + + # Handle cfg truncation + current_guidance_scale = self.guidance_scale + if ( + self.do_classifier_free_guidance + and self._cfg_truncation is not None + and float(self._cfg_truncation) <= 1 + ): + if t_norm > self._cfg_truncation: + current_guidance_scale = 0.0 + + # Run CFG only if configured AND scale is non-zero + apply_cfg = self.do_classifier_free_guidance and current_guidance_scale > 0 + + if apply_cfg: + latents_typed = latents if latents.dtype == dtype else latents.to(dtype) + latent_model_input = latents_typed.repeat(2, 1, 1, 1) + prompt_embeds_model_input = prompt_embeds + negative_prompt_embeds + timestep_model_input = timestep.repeat(2) + else: + latent_model_input = latents if latents.dtype == dtype else latents.to(dtype) + prompt_embeds_model_input = prompt_embeds + timestep_model_input = timestep + + latent_model_input = latent_model_input.unsqueeze(2) + latent_model_input_list = list(latent_model_input.unbind(dim=0)) + + model_out_list = self.transformer( + latent_model_input_list, + timestep_model_input, + prompt_embeds_model_input, + )[0] + + if apply_cfg: + # Perform CFG + pos_out = model_out_list[:batch_size] + neg_out = model_out_list[batch_size:] + + noise_pred = [] + for j in range(batch_size): + pos = pos_out[j].float() + neg = neg_out[j].float() + + pred = pos + current_guidance_scale * (pos - neg) + + # Renormalization + if self._cfg_normalization and float(self._cfg_normalization) > 0.0: + ori_pos_norm = torch.linalg.vector_norm(pos) + new_pos_norm = torch.linalg.vector_norm(pred) + max_new_norm = ori_pos_norm * float(self._cfg_normalization) + if new_pos_norm > max_new_norm: + pred = pred * (max_new_norm / new_pos_norm) + + noise_pred.append(pred) + + noise_pred = torch.stack(noise_pred, dim=0) + else: + noise_pred = torch.stack([t.float() for t in model_out_list], dim=0) + + noise_pred = noise_pred.squeeze(2) + noise_pred = -noise_pred + + # compute the previous noisy sample x_t -> x_t-1 + latents = self.scheduler.step(noise_pred.to(torch.float32), t, latents, return_dict=False)[0] + assert latents.dtype == torch.float32 + + if callback_on_step_end is not None: + callback_kwargs = {} + for k in callback_on_step_end_tensor_inputs: + callback_kwargs[k] = locals()[k] + callback_outputs = callback_on_step_end(self, i, t, callback_kwargs) + + latents = callback_outputs.pop("latents", latents) + prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds) + negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds) + + # call the callback, if provided + if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0): + progress_bar.update() + + latents = latents.to(dtype) + if output_type == "latent": + image = latents + + else: + latents = (latents / self.vae.config.scaling_factor) + self.vae.config.shift_factor + + image = self.vae.decode(latents, return_dict=False)[0] + image = self.image_processor.postprocess(image, output_type=output_type) + + # Offload all models + self.maybe_free_model_hooks() + + if not return_dict: + return (image,) + + return ZImagePipelineOutput(images=image) diff --git a/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/utils/dummy_torch_and_transformers_objects.py b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/utils/dummy_torch_and_transformers_objects.py new file mode 100644 index 0000000000000000000000000000000000000000..ec68c52c4d9b6d99394759d7d3b9d064e01d9af4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/reference/src/diffusers/utils/dummy_torch_and_transformers_objects.py @@ -0,0 +1,3662 @@ +# This file is autogenerated by the command `make fix-copies`, do not edit. +from ..utils import DummyObject, requires_backends + + +class FluxAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxKontextAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxKontextModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditPlusAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditPlusModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Wan22AutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanAutoBlocks(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanModularPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AllegroPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AltDiffusionImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AltDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AmusedImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AmusedInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AmusedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffSDXLPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffSparseControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffVideoToVideoControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AnimateDiffVideoToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AudioLDM2Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AudioLDM2ProjectionModel(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AudioLDM2UNet2DConditionModel(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AudioLDMPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class AuraFlowPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class BriaFiboPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class BriaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ChromaImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ChromaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ChronoEditPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CLIPImageProjection(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogVideoXFunControlPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogVideoXImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogVideoXPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogVideoXVideoToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogView3PlusPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogView4ControlPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CogView4Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ConsisIDPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Cosmos2TextToImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Cosmos2VideoToWorldPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CosmosTextToWorldPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CosmosVideoToWorldPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class CycleDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class EasyAnimateControlPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class EasyAnimateInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class EasyAnimatePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlNetImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlNetInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxControlPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxFillPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxKontextInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxKontextPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class FluxPriorReduxPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HiDreamImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanDiTControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanDiTPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanDiTPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanImageRefinerPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanSkyreelsImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanVideoFramepackPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanVideoImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class HunyuanVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class I2VGenXLPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFImg2ImgSuperResolutionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFInpaintingPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFInpaintingSuperResolutionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class IFSuperResolutionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ImageTextPipelineOutput(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Kandinsky3Img2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Kandinsky3Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Kandinsky5T2VPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyImg2ImgCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyInpaintCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyPriorPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22CombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22ControlnetImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22ControlnetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22Img2ImgCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22Img2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22InpaintCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22InpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22PriorEmb2EmbPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class KandinskyV22PriorPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LatentConsistencyModelImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LatentConsistencyModelPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LattePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LDMTextToImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LEditsPPPipelineStableDiffusion(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LEditsPPPipelineStableDiffusionXL(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LTXConditionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LTXImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LTXLatentUpsamplePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LTXPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LucyEditPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Lumina2Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class Lumina2Text2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LuminaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class LuminaText2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MarigoldDepthPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MarigoldIntrinsicsPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MarigoldNormalsPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MochiPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class MusicLDMPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class OmniGenPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PaintByExamplePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PIAPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PixArtAlphaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PixArtSigmaPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PixArtSigmaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class PRXPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageControlNetInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageEditPlusPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImageInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class QwenImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ReduxImageEncoder(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaSprintImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaSprintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SanaVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SemanticStableDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ShapEImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ShapEPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2DiffusionForcingImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2DiffusionForcingPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2DiffusionForcingVideoToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2ImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class SkyReelsV2Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableAudioPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableAudioProjectionModel(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableCascadeCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableCascadeDecoderPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableCascadePriorPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3ControlNetInpaintingPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3ControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3Img2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3InpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3PAGImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3PAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusion3Pipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionAdapterPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionAttendAndExcitePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetPAGInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionControlNetXSPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionDepth2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionDiffEditPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionGLIGENPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionGLIGENTextImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionImageVariationPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionInpaintPipelineLegacy(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionInstructPix2PixPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionLatentUpscalePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionLDM3DPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionModelEditingPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPAGImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPAGInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPanoramaPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionParadigmsPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPipelineSafe(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionPix2PixZeroPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionSAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionUpscalePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLAdapterPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetPAGImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetUnionImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetUnionInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetUnionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLControlNetXSPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLInstructPix2PixPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLPAGImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLPAGInpaintPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLPAGPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableDiffusionXLPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableUnCLIPImg2ImgPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableUnCLIPPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class StableVideoDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class TextToVideoSDPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class TextToVideoZeroPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class TextToVideoZeroSDXLPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UnCLIPImageVariationPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UnCLIPPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UniDiffuserModel(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UniDiffuserPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class UniDiffuserTextDecoder(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VersatileDiffusionDualGuidedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VersatileDiffusionImageVariationPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VersatileDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VersatileDiffusionTextToImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VideoToVideoSDPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VisualClozeGenerationPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VisualClozePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class VQDiffusionPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanAnimatePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanImageToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanVACEPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WanVideoToVideoPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WuerstchenCombinedPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WuerstchenDecoderPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class WuerstchenPriorPipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + +class ZImagePipeline(metaclass=DummyObject): + _backends = ["torch", "transformers"] + + def __init__(self, *args, **kwargs): + requires_backends(self, ["torch", "transformers"]) + + @classmethod + def from_config(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) + + @classmethod + def from_pretrained(cls, *args, **kwargs): + requires_backends(cls, ["torch", "transformers"]) diff --git a/tasks/tasksmith-1c5704b1f07f/solution/solve.sh b/tasks/tasksmith-1c5704b1f07f/solution/solve.sh new file mode 100644 index 0000000000000000000000000000000000000000..b93c30fa536355fa3e6581c641d73dcc2f2b7148 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/solution/solve.sh @@ -0,0 +1,22 @@ +#!/bin/sh +set -eu +mkdir -p -- /workspace/src/diffusers +cp /solution/reference/src/diffusers/__init__.py /workspace/src/diffusers/__init__.py +mkdir -p -- /workspace/src/diffusers/hooks +cp /solution/reference/src/diffusers/hooks/_helpers.py /workspace/src/diffusers/hooks/_helpers.py +mkdir -p -- /workspace/src/diffusers/models +cp /solution/reference/src/diffusers/models/__init__.py /workspace/src/diffusers/models/__init__.py +mkdir -p -- /workspace/src/diffusers/models/transformers +cp /solution/reference/src/diffusers/models/transformers/__init__.py /workspace/src/diffusers/models/transformers/__init__.py +mkdir -p -- /workspace/src/diffusers/models/transformers +cp /solution/reference/src/diffusers/models/transformers/transformer_z_image.py /workspace/src/diffusers/models/transformers/transformer_z_image.py +mkdir -p -- /workspace/src/diffusers/pipelines +cp /solution/reference/src/diffusers/pipelines/__init__.py /workspace/src/diffusers/pipelines/__init__.py +mkdir -p -- /workspace/src/diffusers/pipelines/z_image +cp /solution/reference/src/diffusers/pipelines/z_image/__init__.py /workspace/src/diffusers/pipelines/z_image/__init__.py +mkdir -p -- /workspace/src/diffusers/pipelines/z_image +cp /solution/reference/src/diffusers/pipelines/z_image/pipeline_output.py /workspace/src/diffusers/pipelines/z_image/pipeline_output.py +mkdir -p -- /workspace/src/diffusers/pipelines/z_image +cp /solution/reference/src/diffusers/pipelines/z_image/pipeline_z_image.py /workspace/src/diffusers/pipelines/z_image/pipeline_z_image.py +mkdir -p -- /workspace/src/diffusers/utils +cp /solution/reference/src/diffusers/utils/dummy_torch_and_transformers_objects.py /workspace/src/diffusers/utils/dummy_torch_and_transformers_objects.py diff --git a/tasks/tasksmith-1c5704b1f07f/task.toml b/tasks/tasksmith-1c5704b1f07f/task.toml new file mode 100644 index 0000000000000000000000000000000000000000..f7d52e2fb467f5b654b8b4d2451851573213a8b3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/task.toml @@ -0,0 +1,120 @@ +schema_version = "1.3" + +[task] +name = "repo2rlenv/tasksmith-1c5704b1f07f" + +[metadata.repo2env] +recipe = "tasksmith" +recipe_version = "1" +source_url = "https://github.com/huggingface/diffusers/pull/12703" +source_head = "1048d0a94d553978b35bec0942c408c57bb12c9e" +source_base = "d33d9f6715e0c2430c7b7d871b0e20a11601a05d" +workspace_strategy = "head_minus_source_patch" +source_diff_sha256 = "ae5e2f6c4c7635a9f1e0fe00f8c7512b4ec61a8a4e24c52d5218530d54a5dac8" +acceptance_profile = "practical-generation-v1" +upstream_test_policy = "retain" +reward_kinds = [ + "test_execution", +] +quality_status = "exported" +fail_to_pass_count = 12 +pass_to_pass_count = 21 +bundle_hash = "sha256:b3f83f7803d33a1306f1f2412673efb8579517b67ff7c7c9c0703f5ce9e14365" + +[metadata.repo2env.evaluation] +schema_version = "1" +status = "verified" +stage = "complete" +reason_codes = [ + "quality_verified", +] +detail = "Reviewed controls, semantic probes and blind rollout passed the quality profile." +checked_at = "2026-09-14T05:43:38.607724Z" +provenance = "assisted" +subject_bundle_hash = "sha256:b3f83f7803d33a1306f1f2412673efb8579517b67ff7c7c9c0703f5ce9e14365" +profile = "practical-generation-v1" +source_task_path = "/Users/adithya/projects/Repo2RLEnv-tasksmith/workspace/tasksmith-scale50/batch-v15/candidates/8e04eff53e12/candidates/1c5704b1f07f/quality/revisions/r0/tasksmith-1c5704b1f07f" +source_task_toml_sha256 = "23280dd105eebd659c9fe1bbf0f55324e49ac04b253d4f3877afa70609e057fb" + +[[metadata.repo2env.evaluation.evidence]] +kind = "quality_result" +path = "/Users/adithya/projects/Repo2RLEnv-tasksmith/workspace/tasksmith-scale50/batch-v15/candidates/8e04eff53e12/candidates/1c5704b1f07f/quality/result.json" +sha256 = "75856d90da8af18418b3985f175aab581b2b31b9ef3621dfbe83229aae57e478" +subject_bundle_hash = "sha256:b3f83f7803d33a1306f1f2412673efb8579517b67ff7c7c9c0703f5ce9e14365" + +[[metadata.repo2env.evaluation.evidence]] +kind = "baseline" +path = 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+network_mode = "no-network" + +[verifier] +timeout_sec = 150 +user = "root" +network_mode = "no-network" +environment_mode = "separate" + +[verifier.environment] +network_mode = "no-network" +cpus = 4 +memory_mb = 8192 + +[[artifacts]] +source = "/workspace/src/diffusers" +exclude = [ + "__pycache__", + "*.pyc", + ".pytest_cache", +] diff --git a/tasks/tasksmith-1c5704b1f07f/tests/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..6d128b14126bcc93a6cf577bd9e20dfd305d28e2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/Dockerfile @@ -0,0 +1,10 @@ +FROM python:3.12-slim-bookworm +WORKDIR /workspace +RUN python -m pip install --no-cache-dir --extra-index-url https://download.pytorch.org/whl/cpu torch==2.11.0+cpu numpy==2.5.3 packaging==26.3 parameterized==0.9.0 pillow==12.3.0 pytest==8.4.2 setuptools==78.1.0 wheel==0.48.0 huggingface-hub==0.36.2 safetensors==0.5.3 filelock==3.32.6 requests==2.32.3 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"src/diffusers/utils/dummy_optimum_quanto_objects.py", + "src/diffusers/utils/dummy_pt_objects.py", + "src/diffusers/utils/dummy_torch_and_librosa_objects.py", + "src/diffusers/utils/dummy_torch_and_scipy_objects.py", + "src/diffusers/utils/dummy_torch_and_torchsde_objects.py", + "src/diffusers/utils/dummy_torch_and_transformers_and_k_diffusion_objects.py", + "src/diffusers/utils/dummy_torch_and_transformers_and_onnx_objects.py", + "src/diffusers/utils/dummy_torch_and_transformers_and_opencv_objects.py", + "src/diffusers/utils/dummy_torch_and_transformers_and_sentencepiece_objects.py", + "src/diffusers/utils/dummy_torch_and_transformers_objects.py", + "src/diffusers/utils/dummy_torchao_objects.py", + "src/diffusers/utils/dummy_transformers_and_torch_and_note_seq_objects.py", + "src/diffusers/utils/dynamic_modules_utils.py", + "src/diffusers/utils/export_utils.py", + "src/diffusers/utils/hub_utils.py", + "src/diffusers/utils/import_utils.py", + "src/diffusers/utils/loading_utils.py", + "src/diffusers/utils/logging.py", + "src/diffusers/utils/outputs.py", + "src/diffusers/utils/peft_utils.py", + "src/diffusers/utils/pil_utils.py", + "src/diffusers/utils/remote_utils.py", + "src/diffusers/utils/source_code_parsing_utils.py", + "src/diffusers/utils/state_dict_utils.py", + "src/diffusers/utils/testing_utils.py", + "src/diffusers/utils/torch_utils.py", + "src/diffusers/utils/typing_utils.py", + "src/diffusers/utils/versions.py", + "src/diffusers/video_processor.py" + ], + "submitted_roots": [ + "src/diffusers" + ], + "test_paths": [ + "tests/models/transformers/test_models_transformer_qwenimage.py", + "tests/tasksmith_behavior.py" + ], + "timeout_sec": 120 +} diff --git a/tasks/tasksmith-1c5704b1f07f/tests/grade.py b/tasks/tasksmith-1c5704b1f07f/tests/grade.py new file mode 100644 index 0000000000000000000000000000000000000000..7e060dd2eaf372c0e83ae8f5aea784e5bd622402 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/grade.py @@ -0,0 +1,188 @@ +"""Standalone trusted entry point; copied into each separate verifier image. + +No Repo2RLEnv installation is needed to grade an exported task. Submitted Python +runs as an unprivileged user; this parent owns the result parser and reward file. +""" + +from __future__ import annotations + +import hashlib +import importlib.util +import json +import os +import signal +import stat +import subprocess +import sys +import tempfile +from pathlib import Path + + +def child_environment(temporary: str) -> dict[str, str]: + """Preserve prepared runtime assets without inheriting controller credentials.""" + return { + **{ + key: os.environ[key] + for key in ( + "LD_LIBRARY_PATH", + "CUDA_VISIBLE_DEVICES", + "NVIDIA_VISIBLE_DEVICES", + "NVIDIA_DRIVER_CAPABILITIES", + "NCCL_SOCKET_IFNAME", + "GLOO_SOCKET_IFNAME", + "HF_HOME", + "HF_HUB_CACHE", + "HF_HUB_OFFLINE", + "TRANSFORMERS_OFFLINE", + "HF_DATASETS_OFFLINE", + ) + if key in os.environ + }, + "PATH": str(Path(sys.executable).parent) + ":/usr/local/bin:/usr/bin:/bin", + "HOME": temporary, + "PYTHONDONTWRITEBYTECODE": "1", + "PYTEST_DISABLE_PLUGIN_AUTOLOAD": "1", + } + + +def validate_submission(workspace: Path, contract: dict) -> None: + """Validate private staging and remove inert backups before importing Python.""" + submitted = set(contract["submitted_files"]) + backups: set[str] = set() + optional = submitted & set(contract.get("optional_files", [])) + paths = submitted - optional + for relative in optional: + path = workspace / relative + if any(component.is_symlink() for component in (path, *path.parents)): + raise ValueError("Submitted source contains a symlink") + # Added standalone modules may be absent in the baseline. If supplied, + # apply the same regular-file and size checks as every required module. + if path.exists(): + paths.add(relative) + roots = contract.get("submitted_roots", []) + immutable = contract.get("immutable_assets", {}) + paths.update(immutable) + for relative in roots: + root = workspace / relative + if root.is_symlink() or not root.is_dir(): + raise ValueError("Submitted source root is missing or linked") + for path in root.rglob("*"): + if path.is_symlink(): + raise ValueError("Submitted source contains a symlink") + if path.is_dir(): + continue + name = path.relative_to(workspace).as_posix() + if path.suffix != ".py" and name not in immutable: + if name not in submitted and path.name.endswith((".py.bak", ".py~")): + backups.add(name) + else: + raise ValueError("Only Python source files may be added") + paths.add(name) + for relative in sorted(paths): + path = workspace / relative + for component in (path, *path.parents): + if component.is_symlink(): + raise ValueError("Submitted source contains a symlink") + if ( + not path.is_file() + or not stat.S_ISREG(path.stat().st_mode) + or path.stat().st_size > 8 * 1024 * 1024 + ): + raise ValueError("Submitted source is not a bounded regular file") + if ( + relative in immutable + and hashlib.sha256(path.read_bytes()).hexdigest() != immutable[relative] + ): + raise ValueError("Non-Python source assets must remain unchanged") + if relative not in backups: + os.chown(path, 0, 0) + path.chmod(0o644) + # Only the verifier's collected copy is cleaned. The learner workspace and + # archived submission retain their bytes. Validate every path first so a + # backup cannot bypass linked, oversized, required, or immutable file checks. + for relative in sorted(backups): + (workspace / relative).unlink() + + +def main() -> None: + directory = Path("/tests") + parser_spec = importlib.util.spec_from_file_location( + "test_results", directory / "test_results.py" + ) + parser = importlib.util.module_from_spec(parser_spec) + sys.modules[parser_spec.name] = parser + parser_spec.loader.exec_module(parser) + contract = json.loads((directory / "contract.json").read_text()) + logs = Path("/logs/verifier") + logs.mkdir(parents=True, exist_ok=True) + logs.chmod(0o755) + reward = logs / "reward.txt" + reward.write_text("0\n") + reward.chmod(0o644) + try: + validate_submission(Path("/workspace"), contract) + except (ValueError, OSError) as exc: + (logs / "result.json").write_text(json.dumps({"passed": False, "reason": str(exc)})) + return + with tempfile.TemporaryDirectory(prefix="r2e-grade-") as temporary: + working = Path(temporary) + os.chown(working, 1001, 1001) + working.chmod(0o700) + report = working / "results.xml" + command = [ + sys.executable, + "-I", + "/tests/test_driver.py", + *contract["test_paths"], + "-q", + "--tb=short", + "-p", + "no:cacheprovider", + f"--junitxml={report}", + ] + with (logs / "stdout.txt").open("w") as stdout, (logs / "stderr.txt").open("w") as stderr: + process = subprocess.Popen( + command, + cwd="/workspace", + stdout=stdout, + stderr=stderr, + user=1001, + group=1001, + extra_groups=[], + start_new_session=True, + env=child_environment(temporary), + ) + try: + code = process.wait(timeout=contract["timeout_sec"]) + finally: + # Terminate descendants too: they must not keep modifying the + # child-owned report while the trusted parent checks it. + try: + os.killpg(process.pid, signal.SIGKILL) + except ProcessLookupError: + pass + process.wait() + if report.is_symlink() or not report.is_file() or report.stat().st_size > 16 * 1024 * 1024: + (logs / "result.json").write_text( + json.dumps({"passed": False, "returncode": code, "reason": "invalid_report"}) + ) + return + text = report.read_text() + (logs / "results.xml").write_text(text) + try: + parsed = parser.parse_junit(text, returncode=code) + except ValueError as exc: + (logs / "result.json").write_text( + json.dumps({"passed": False, "returncode": code, "reason": str(exc)}) + ) + return + expected = set(contract["expected_passes"]) + passed = code == 0 and bool(expected) and parsed.passed == expected + (logs / "result.json").write_text( + json.dumps({"passed": passed, "returncode": code, "statuses": parsed.statuses}) + ) + reward.write_text("1\n" if passed else "0\n") + + +if __name__ == "__main__": + main() diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/bug-report.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/bug-report.yml new file mode 100644 index 0000000000000000000000000000000000000000..a0517725284e6062287e08dad3495d94b0bd0481 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/bug-report.yml @@ -0,0 +1,110 @@ +name: "\U0001F41B Bug Report" +description: Report a bug on Diffusers +labels: [ "bug" ] +body: + - type: markdown + attributes: + value: | + Thanks a lot for taking the time to file this issue 🤗. + Issues do not only help to improve the library, but also publicly document common problems, questions, workflows for the whole community! + Thus, issues are of the same importance as pull requests when contributing to this library ❤️. + In order to make your issue as **useful for the community as possible**, let's try to stick to some simple guidelines: + - 1. Please try to be as precise and concise as possible. + *Give your issue a fitting title. Assume that someone which very limited knowledge of Diffusers can understand your issue. Add links to the source code, documentation other issues, pull requests etc...* + - 2. If your issue is about something not working, **always** provide a reproducible code snippet. The reader should be able to reproduce your issue by **only copy-pasting your code snippet into a Python shell**. + *The community cannot solve your issue if it cannot reproduce it. If your bug is related to training, add your training script and make everything needed to train public. Otherwise, just add a simple Python code snippet.* + - 3. Add the **minimum** amount of code / context that is needed to understand, reproduce your issue. + *Make the life of maintainers easy. `diffusers` is getting many issues every day. Make sure your issue is about one bug and one bug only. Make sure you add only the context, code needed to understand your issues - nothing more. Generally, every issue is a way of documenting this library, try to make it a good documentation entry.* + - 4. For issues related to community pipelines (i.e., the pipelines located in the `examples/community` folder), please tag the author of the pipeline in your issue thread as those pipelines are not maintained. + - type: markdown + attributes: + value: | + For more in-detail information on how to write good issues you can have a look [here](https://huggingface.co/course/chapter8/5?fw=pt). + - type: textarea + id: bug-description + attributes: + label: Describe the bug + description: A clear and concise description of what the bug is. If you intend to submit a pull request for this issue, tell us in the description. Thanks! + placeholder: Bug description + validations: + required: true + - type: textarea + id: reproduction + attributes: + label: Reproduction + description: Please provide a minimal reproducible code which we can copy/paste and reproduce the issue. + placeholder: Reproduction + validations: + required: true + - type: textarea + id: logs + attributes: + label: Logs + description: "Please include the Python logs if you can." + render: shell + - type: textarea + id: system-info + attributes: + label: System Info + description: Please share your system info with us. You can run the command `diffusers-cli env` and copy-paste its output below. + placeholder: Diffusers version, platform, Python version, ... + validations: + required: true + - type: textarea + id: who-can-help + attributes: + label: Who can help? + description: | + Your issue will be replied to more quickly if you can figure out the right person to tag with @. + If you know how to use git blame, that is the easiest way, otherwise, here is a rough guide of **who to tag**. + + All issues are read by one of the core maintainers, so if you don't know who to tag, just leave this blank and + a core maintainer will ping the right person. + + Please tag a maximum of 2 people. + + Questions on DiffusionPipeline (Saving, Loading, From pretrained, ...): @sayakpaul @DN6 + + Questions on pipelines: + - Stable Diffusion @yiyixuxu @asomoza + - Stable Diffusion XL @yiyixuxu @sayakpaul @DN6 + - Stable Diffusion 3: @yiyixuxu @sayakpaul @DN6 @asomoza + - Kandinsky @yiyixuxu + - ControlNet @sayakpaul @yiyixuxu @DN6 + - T2I Adapter @sayakpaul @yiyixuxu @DN6 + - IF @DN6 + - Text-to-Video / Video-to-Video @DN6 @a-r-r-o-w + - Wuerstchen @DN6 + - Other: @yiyixuxu @DN6 + - Improving generation quality: @asomoza + + Questions on models: + - UNet @DN6 @yiyixuxu @sayakpaul + - VAE @sayakpaul @DN6 @yiyixuxu + - Transformers/Attention @DN6 @yiyixuxu @sayakpaul + + Questions on single file checkpoints: @DN6 + + Questions on Schedulers: @yiyixuxu + + Questions on LoRA: @sayakpaul + + Questions on Textual Inversion: @sayakpaul + + Questions on Training: + - DreamBooth @sayakpaul + - Text-to-Image Fine-tuning @sayakpaul + - Textual Inversion @sayakpaul + - ControlNet @sayakpaul + + Questions on Tests: @DN6 @sayakpaul @yiyixuxu + + Questions on Documentation: @stevhliu + + Questions on JAX- and MPS-related things: @pcuenca + + Questions on audio pipelines: @sanchit-gandhi + + + + placeholder: "@Username ..." diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/config.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/config.yml new file mode 100644 index 0000000000000000000000000000000000000000..e81992fe3c69b65f58f627252ffa6569d1cd67e2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/config.yml @@ -0,0 +1,4 @@ +contact_links: + - name: Questions / Discussions + url: https://github.com/huggingface/diffusers/discussions + about: General usage questions and community discussions diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/feature_request.md b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/feature_request.md new file mode 100644 index 0000000000000000000000000000000000000000..42f93232c1de7c73dcd90cdb6b0733bbb4461508 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/feature_request.md @@ -0,0 +1,20 @@ +--- +name: "\U0001F680 Feature Request" +about: Suggest an idea for this project +title: '' +labels: '' +assignees: '' + +--- + +**Is your feature request related to a problem? Please describe.** +A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]. + +**Describe the solution you'd like.** +A clear and concise description of what you want to happen. + +**Describe alternatives you've considered.** +A clear and concise description of any alternative solutions or features you've considered. + +**Additional context.** +Add any other context or screenshots about the feature request here. diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/feedback.md b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/feedback.md new file mode 100644 index 0000000000000000000000000000000000000000..25808b6575a405694f64dbf1b5a0ece8e0fcd2e2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/feedback.md @@ -0,0 +1,12 @@ +--- +name: "💬 Feedback about API Design" +about: Give feedback about the current API design +title: '' +labels: '' +assignees: '' + +--- + +**What API design would you like to have changed or added to the library? Why?** + +**What use case would this enable or better enable? Can you give us a code example?** diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/new-model-addition.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/new-model-addition.yml new file mode 100644 index 0000000000000000000000000000000000000000..432e287dd3348965466a696ee5e01a187f179ee5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/new-model-addition.yml @@ -0,0 +1,31 @@ +name: "\U0001F31F New Model/Pipeline/Scheduler Addition" +description: Submit a proposal/request to implement a new diffusion model/pipeline/scheduler +labels: [ "New model/pipeline/scheduler" ] + +body: + - type: textarea + id: description-request + validations: + required: true + attributes: + label: Model/Pipeline/Scheduler description + description: | + Put any and all important information relative to the model/pipeline/scheduler + + - type: checkboxes + id: information-tasks + attributes: + label: Open source status + description: | + Please note that if the model implementation isn't available or if the weights aren't open-source, we are less likely to implement it in `diffusers`. + options: + - label: "The model implementation is available." + - label: "The model weights are available (Only relevant if addition is not a scheduler)." + + - type: textarea + id: additional-info + attributes: + label: Provide useful links for the implementation + description: | + Please provide information regarding the implementation, the weights, and the authors. + Please mention the authors by @gh-username if you're aware of their usernames. diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/remote-vae-pilot-feedback.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/remote-vae-pilot-feedback.yml new file mode 100644 index 0000000000000000000000000000000000000000..c94d3bed97380f475a5a71c47f0f4a0870753620 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/remote-vae-pilot-feedback.yml @@ -0,0 +1,38 @@ +name: "\U0001F31F Remote VAE" +description: Feedback for remote VAE pilot +labels: [ "Remote VAE" ] + +body: + - type: textarea + id: positive + validations: + required: true + attributes: + label: Did you like the remote VAE solution? + description: | + If you liked it, we would appreciate it if you could elaborate what you liked. + + - type: textarea + id: feedback + validations: + required: true + attributes: + label: What can be improved about the current solution? + description: | + Let us know the things you would like to see improved. Note that we will work optimizing the solution once the pilot is over and we have usage. + + - type: textarea + id: others + validations: + required: true + attributes: + label: What other VAEs you would like to see if the pilot goes well? + description: | + Provide a list of the VAEs you would like to see in the future if the pilot goes well. + + - type: textarea + id: additional-info + attributes: + label: Notify the members of the team + description: | + Tag the following folks when submitting this feedback: @hlky @sayakpaul diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/translate.md b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/translate.md new file mode 100644 index 0000000000000000000000000000000000000000..3471ec9640d727e7cdf223852d2012834660e88a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/ISSUE_TEMPLATE/translate.md @@ -0,0 +1,29 @@ +--- +name: 🌐 Translating a New Language? +about: Start a new translation effort in your language +title: '[] Translating docs to ' +labels: WIP +assignees: '' + +--- + + + +Hi! + +Let's bring the documentation to all the -speaking community 🌐. + +Who would want to translate? Please follow the 🤗 [TRANSLATING guide](https://github.com/huggingface/diffusers/blob/main/docs/TRANSLATING.md). Here is a list of the files ready for translation. Let us know in this issue if you'd like to translate any, and we'll add your name to the list. + +Some notes: + +* Please translate using an informal tone (imagine you are talking with a friend about Diffusers 🤗). +* Please translate in a gender-neutral way. +* Add your translations to the folder called `` inside the [source folder](https://github.com/huggingface/diffusers/tree/main/docs/source). +* Register your translation in `/_toctree.yml`; please follow the order of the [English version](https://github.com/huggingface/diffusers/blob/main/docs/source/en/_toctree.yml). +* Once you're finished, open a pull request and tag this issue by including #issue-number in the description, where issue-number is the number of this issue. Please ping @stevhliu for review. +* 🙋 If you'd like others to help you with the translation, you can also post in the 🤗 [forums](https://discuss.huggingface.co/c/discussion-related-to-httpsgithubcomhuggingfacediffusers/63). + +Thank you so much for your help! 🤗 diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/PULL_REQUEST_TEMPLATE.md b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/PULL_REQUEST_TEMPLATE.md new file mode 100644 index 0000000000000000000000000000000000000000..e4b2b45a4ecde200e65e3a2e16ac0cdb0b87d7c3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/PULL_REQUEST_TEMPLATE.md @@ -0,0 +1,61 @@ +# What does this PR do? + + + + + +Fixes # (issue) + + +## Before submitting +- [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case). +- [ ] Did you read the [contributor guideline](https://github.com/huggingface/diffusers/blob/main/CONTRIBUTING.md)? +- [ ] Did you read our [philosophy doc](https://github.com/huggingface/diffusers/blob/main/PHILOSOPHY.md) (important for complex PRs)? +- [ ] Was this discussed/approved via a GitHub issue or the [forum](https://discuss.huggingface.co/c/discussion-related-to-httpsgithubcomhuggingfacediffusers/63)? Please add a link to it if that's the case. +- [ ] Did you make sure to update the documentation with your changes? Here are the + [documentation guidelines](https://github.com/huggingface/diffusers/tree/main/docs), and + [here are tips on formatting docstrings](https://github.com/huggingface/diffusers/tree/main/docs#writing-source-documentation). +- [ ] Did you write any new necessary tests? + + +## Who can review? + +Anyone in the community is free to review the PR once the tests have passed. Feel free to tag +members/contributors who may be interested in your PR. + + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/actions/setup-miniconda/action.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/actions/setup-miniconda/action.yml new file mode 100644 index 0000000000000000000000000000000000000000..b1f4f194bfe1fd14e03239269e466e7978e3d5c5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/actions/setup-miniconda/action.yml @@ -0,0 +1,146 @@ +name: Set up conda environment for testing + +description: Sets up miniconda in your ${RUNNER_TEMP} environment and gives you the ${CONDA_RUN} environment variable so you don't have to worry about polluting non-empeheral runners anymore + +inputs: + python-version: + description: If set to any value, don't use sudo to clean the workspace + required: false + type: string + default: "3.9" + miniconda-version: + description: Miniconda version to install + required: false + type: string + default: "4.12.0" + environment-file: + description: Environment file to install dependencies from + required: false + type: string + default: "" + +runs: + using: composite + steps: + # Use the same trick from https://github.com/marketplace/actions/setup-miniconda + # to refresh the cache daily. This is kind of optional though + - name: Get date + id: get-date + shell: bash + run: echo "today=$(/bin/date -u '+%Y%m%d')d" >> $GITHUB_OUTPUT + - name: Setup miniconda cache + id: miniconda-cache + uses: actions/cache@v2 + with: + path: ${{ runner.temp }}/miniconda + key: miniconda-${{ runner.os }}-${{ runner.arch }}-${{ inputs.python-version }}-${{ steps.get-date.outputs.today }} + - name: Install miniconda (${{ inputs.miniconda-version }}) + if: steps.miniconda-cache.outputs.cache-hit != 'true' + env: + MINICONDA_VERSION: ${{ inputs.miniconda-version }} + shell: bash -l {0} + run: | + MINICONDA_INSTALL_PATH="${RUNNER_TEMP}/miniconda" + mkdir -p "${MINICONDA_INSTALL_PATH}" + case ${RUNNER_OS}-${RUNNER_ARCH} in + Linux-X64) + MINICONDA_ARCH="Linux-x86_64" + ;; + macOS-ARM64) + MINICONDA_ARCH="MacOSX-arm64" + ;; + macOS-X64) + MINICONDA_ARCH="MacOSX-x86_64" + ;; + *) + echo "::error::Platform ${RUNNER_OS}-${RUNNER_ARCH} currently unsupported using this action" + exit 1 + ;; + esac + MINICONDA_URL="https://repo.anaconda.com/miniconda/Miniconda3-py39_${MINICONDA_VERSION}-${MINICONDA_ARCH}.sh" + curl -fsSL "${MINICONDA_URL}" -o "${MINICONDA_INSTALL_PATH}/miniconda.sh" + bash "${MINICONDA_INSTALL_PATH}/miniconda.sh" -b -u -p "${MINICONDA_INSTALL_PATH}" + rm -rf "${MINICONDA_INSTALL_PATH}/miniconda.sh" + - name: Update GitHub path to include miniconda install + shell: bash + run: | + MINICONDA_INSTALL_PATH="${RUNNER_TEMP}/miniconda" + echo "${MINICONDA_INSTALL_PATH}/bin" >> $GITHUB_PATH + - name: Setup miniconda env cache (with env file) + id: miniconda-env-cache-env-file + if: ${{ runner.os }} == 'macOS' && ${{ inputs.environment-file }} != '' + uses: actions/cache@v2 + with: + path: ${{ runner.temp }}/conda-python-${{ inputs.python-version }} + key: miniconda-env-${{ runner.os }}-${{ runner.arch }}-${{ inputs.python-version }}-${{ steps.get-date.outputs.today }}-${{ hashFiles(inputs.environment-file) }} + - name: Setup miniconda env cache (without env file) + id: miniconda-env-cache + if: ${{ runner.os }} == 'macOS' && ${{ inputs.environment-file }} == '' + uses: actions/cache@v2 + with: + path: ${{ runner.temp }}/conda-python-${{ inputs.python-version }} + key: miniconda-env-${{ runner.os }}-${{ runner.arch }}-${{ inputs.python-version }}-${{ steps.get-date.outputs.today }} + - name: Setup conda environment with python (v${{ inputs.python-version }}) + if: steps.miniconda-env-cache-env-file.outputs.cache-hit != 'true' && steps.miniconda-env-cache.outputs.cache-hit != 'true' + shell: bash + env: + PYTHON_VERSION: ${{ inputs.python-version }} + ENV_FILE: ${{ inputs.environment-file }} + run: | + CONDA_BASE_ENV="${RUNNER_TEMP}/conda-python-${PYTHON_VERSION}" + ENV_FILE_FLAG="" + if [[ -f "${ENV_FILE}" ]]; then + ENV_FILE_FLAG="--file ${ENV_FILE}" + elif [[ -n "${ENV_FILE}" ]]; then + echo "::warning::Specified env file (${ENV_FILE}) not found, not going to include it" + fi + conda create \ + --yes \ + --prefix "${CONDA_BASE_ENV}" \ + "python=${PYTHON_VERSION}" \ + ${ENV_FILE_FLAG} \ + cmake=3.22 \ + conda-build=3.21 \ + ninja=1.10 \ + pkg-config=0.29 \ + wheel=0.37 + - name: Clone the base conda environment and update GitHub env + shell: bash + env: + PYTHON_VERSION: ${{ inputs.python-version }} + CONDA_BASE_ENV: ${{ runner.temp }}/conda-python-${{ inputs.python-version }} + run: | + CONDA_ENV="${RUNNER_TEMP}/conda_environment_${GITHUB_RUN_ID}" + conda create \ + --yes \ + --prefix "${CONDA_ENV}" \ + --clone "${CONDA_BASE_ENV}" + # TODO: conda-build could not be cloned because it hardcodes the path, so it + # could not be cached + conda install --yes -p ${CONDA_ENV} conda-build=3.21 + echo "CONDA_ENV=${CONDA_ENV}" >> "${GITHUB_ENV}" + echo "CONDA_RUN=conda run -p ${CONDA_ENV} --no-capture-output" >> "${GITHUB_ENV}" + echo "CONDA_BUILD=conda run -p ${CONDA_ENV} conda-build" >> "${GITHUB_ENV}" + echo "CONDA_INSTALL=conda install -p ${CONDA_ENV}" >> "${GITHUB_ENV}" + - name: Get disk space usage and throw an error for low disk space + shell: bash + run: | + echo "Print the available disk space for manual inspection" + df -h + # Set the minimum requirement space to 4GB + MINIMUM_AVAILABLE_SPACE_IN_GB=4 + MINIMUM_AVAILABLE_SPACE_IN_KB=$(($MINIMUM_AVAILABLE_SPACE_IN_GB * 1024 * 1024)) + # Use KB to avoid floating point warning like 3.1GB + df -k | tr -s ' ' | cut -d' ' -f 4,9 | while read -r LINE; + do + AVAIL=$(echo $LINE | cut -f1 -d' ') + MOUNT=$(echo $LINE | cut -f2 -d' ') + if [ "$MOUNT" = "/" ]; then + if [ "$AVAIL" -lt "$MINIMUM_AVAILABLE_SPACE_IN_KB" ]; then + echo "There is only ${AVAIL}KB free space left in $MOUNT, which is less than the minimum requirement of ${MINIMUM_AVAILABLE_SPACE_IN_KB}KB. Please help create an issue to PyTorch Release Engineering via https://github.com/pytorch/test-infra/issues and provide the link to the workflow run." + exit 1; + else + echo "There is ${AVAIL}KB free space left in $MOUNT, continue" + fi + fi + done diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/benchmark.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/benchmark.yml new file mode 100644 index 0000000000000000000000000000000000000000..dc3aa102be789549a12d9d70452523a1dd4058c4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/benchmark.yml @@ -0,0 +1,88 @@ +name: Benchmarking tests + +on: + workflow_dispatch: + schedule: + - cron: "30 1 1,15 * *" # every 2 weeks on the 1st and the 15th of every month at 1:30 AM + +env: + DIFFUSERS_IS_CI: yes + HF_XET_HIGH_PERFORMANCE: 1 + HF_HOME: /mnt/cache + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + BASE_PATH: benchmark_outputs + +jobs: + torch_models_cuda_benchmark_tests: + env: + SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL_BENCHMARK }} + name: Torch Core Models CUDA Benchmarking Tests + strategy: + fail-fast: false + max-parallel: 1 + runs-on: + group: aws-g6e-4xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + apt update + apt install -y libpq-dev postgresql-client + uv pip install -e ".[quality]" + uv pip install -r benchmarks/requirements.txt + - name: Environment + run: | + python utils/print_env.py + - name: Diffusers Benchmarking + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + run: | + cd benchmarks && python run_all.py + + - name: Push results to the Hub + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_BOT_TOKEN }} + run: | + cd benchmarks && python push_results.py + mkdir $BASE_PATH && cp *.csv $BASE_PATH + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: benchmark_test_reports + path: benchmarks/${{ env.BASE_PATH }} + + # TODO: enable this once the connection problem has been resolved. + - name: Update benchmarking results to DB + env: + PGDATABASE: metrics + PGHOST: ${{ secrets.DIFFUSERS_BENCHMARKS_PGHOST }} + PGUSER: transformers_benchmarks + PGPASSWORD: ${{ secrets.DIFFUSERS_BENCHMARKS_PGPASSWORD }} + BRANCH_NAME: ${{ github.head_ref || github.ref_name }} + run: | + git config --global --add safe.directory /__w/diffusers/diffusers + commit_id=$GITHUB_SHA + commit_msg=$(git show -s --format=%s "$commit_id" | cut -c1-70) + cd benchmarks && python populate_into_db.py "$BRANCH_NAME" "$commit_id" "$commit_msg" + + - name: Report success status + if: ${{ success() }} + run: | + pip install requests && python utils/notify_benchmarking_status.py --status=success + + - name: Report failure status + if: ${{ failure() }} + run: | + pip install requests && python utils/notify_benchmarking_status.py --status=failure \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_docker_images.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_docker_images.yml new file mode 100644 index 0000000000000000000000000000000000000000..b1af44736730119e71949aed8752781e66135fec --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_docker_images.yml @@ -0,0 +1,127 @@ +name: Test, build, and push Docker images + +on: + pull_request: # During PRs, we just check if the changes Dockerfiles can be successfully built + branches: + - main + paths: + - "docker/**" + workflow_dispatch: + schedule: + - cron: "0 0 * * *" # every day at midnight + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +env: + REGISTRY: diffusers + CI_SLACK_CHANNEL: ${{ secrets.CI_DOCKER_CHANNEL }} + +jobs: + test-build-docker-images: + runs-on: + group: aws-general-8-plus + if: github.event_name == 'pull_request' + steps: + - name: Set up Docker Buildx + uses: docker/setup-buildx-action@v1 + + - name: Check out code + uses: actions/checkout@v3 + + - name: Find Changed Dockerfiles + id: file_changes + uses: jitterbit/get-changed-files@v1 + with: + format: "space-delimited" + token: ${{ secrets.GITHUB_TOKEN }} + + - name: Build Changed Docker Images + env: + CHANGED_FILES: ${{ steps.file_changes.outputs.all }} + run: | + echo "$CHANGED_FILES" + ALLOWED_IMAGES=( + diffusers-pytorch-cpu + diffusers-pytorch-cuda + diffusers-pytorch-xformers-cuda + diffusers-pytorch-minimum-cuda + diffusers-doc-builder + ) + + declare -A IMAGES_TO_BUILD=() + + for FILE in $CHANGED_FILES; do + # skip anything that isn't still on disk + if [[ ! -e "$FILE" ]]; then + echo "Skipping removed file $FILE" + continue + fi + + for IMAGE in "${ALLOWED_IMAGES[@]}"; do + if [[ "$FILE" == docker/${IMAGE}/* ]]; then + IMAGES_TO_BUILD["$IMAGE"]=1 + fi + done + done + + if [[ ${#IMAGES_TO_BUILD[@]} -eq 0 ]]; then + echo "No relevant Docker changes detected." + exit 0 + fi + + for IMAGE in "${!IMAGES_TO_BUILD[@]}"; do + DOCKER_PATH="docker/${IMAGE}" + echo "Building Docker image for $IMAGE" + docker build -t "$IMAGE" "$DOCKER_PATH" + done + if: steps.file_changes.outputs.all != '' + + build-and-push-docker-images: + runs-on: + group: aws-general-8-plus + if: github.event_name != 'pull_request' + + permissions: + contents: read + packages: write + + strategy: + fail-fast: false + matrix: + image-name: + - diffusers-pytorch-cpu + - diffusers-pytorch-cuda + - diffusers-pytorch-xformers-cuda + - diffusers-pytorch-minimum-cuda + - diffusers-doc-builder + + steps: + - name: Checkout repository + uses: actions/checkout@v3 + - name: Set up Docker Buildx + uses: docker/setup-buildx-action@v1 + - name: Login to Docker Hub + uses: docker/login-action@v2 + with: + username: ${{ env.REGISTRY }} + password: ${{ secrets.DOCKERHUB_TOKEN }} + - name: Build and push + uses: docker/build-push-action@v3 + with: + no-cache: true + context: ./docker/${{ matrix.image-name }} + push: true + tags: ${{ env.REGISTRY }}/${{ matrix.image-name }}:latest + + - name: Post to a Slack channel + id: slack + uses: huggingface/hf-workflows/.github/actions/post-slack@main + with: + # Slack channel id, channel name, or user id to post message. + # See also: https://api.slack.com/methods/chat.postMessage#channels + slack_channel: ${{ env.CI_SLACK_CHANNEL }} + title: "🤗 Results of the ${{ matrix.image-name }} Docker Image build" + status: ${{ job.status }} + slack_token: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }} diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_documentation.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_documentation.yml new file mode 100644 index 0000000000000000000000000000000000000000..6d4193e3cccc42e6824e9f0881a6b3e50bfa7173 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_documentation.yml @@ -0,0 +1,27 @@ +name: Build documentation + +on: + push: + branches: + - main + - doc-builder* + - v*-release + - v*-patch + paths: + - "src/diffusers/**.py" + - "examples/**" + - "docs/**" + +jobs: + build: + uses: huggingface/doc-builder/.github/workflows/build_main_documentation.yml@main + with: + commit_sha: ${{ github.sha }} + install_libgl1: true + package: diffusers + notebook_folder: diffusers_doc + languages: en ko zh ja pt + custom_container: diffusers/diffusers-doc-builder + secrets: + token: ${{ secrets.HUGGINGFACE_PUSH }} + hf_token: ${{ secrets.HF_DOC_BUILD_PUSH }} diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_pr_documentation.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_pr_documentation.yml new file mode 100644 index 0000000000000000000000000000000000000000..f47645c1f659755d5bdbe2223d766e694371eabe --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/build_pr_documentation.yml @@ -0,0 +1,49 @@ +name: Build PR Documentation + +on: + pull_request: + paths: + - "src/diffusers/**.py" + - "examples/**" + - "docs/**" + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +jobs: + check-links: + runs-on: ubuntu-latest + + steps: + - name: Checkout repository + uses: actions/checkout@v4 + + - name: Set up Python + uses: actions/setup-python@v5 + with: + python-version: '3.10' + + - name: Install uv + run: | + curl -LsSf https://astral.sh/uv/install.sh | sh + echo "$HOME/.cargo/bin" >> $GITHUB_PATH + + - name: Install doc-builder + run: | + uv pip install --system git+https://github.com/huggingface/doc-builder.git@main + + - name: Check documentation links + run: | + uv run doc-builder check-links docs/source/en + + build: + needs: check-links + uses: huggingface/doc-builder/.github/workflows/build_pr_documentation.yml@main + with: + commit_sha: ${{ github.event.pull_request.head.sha }} + pr_number: ${{ github.event.number }} + install_libgl1: true + package: diffusers + languages: en ko zh ja pt + custom_container: diffusers/diffusers-doc-builder diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/mirror_community_pipeline.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/mirror_community_pipeline.yml new file mode 100644 index 0000000000000000000000000000000000000000..ab4ded9730471022fc6888c4d1c6a4b0076a310e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/mirror_community_pipeline.yml @@ -0,0 +1,102 @@ +name: Mirror Community Pipeline + +on: + # Push changes on the main branch + push: + branches: + - main + paths: + - 'examples/community/**.py' + + # And on tag creation (e.g. `v0.28.1`) + tags: + - '*' + + # Manual trigger with ref input + workflow_dispatch: + inputs: + ref: + description: "Either 'main' or a tag ref" + required: true + default: 'main' + +jobs: + mirror_community_pipeline: + env: + SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL_COMMUNITY_MIRROR }} + + runs-on: ubuntu-22.04 + steps: + # Checkout to correct ref + # If workflow dispatch + # If ref is 'main', set: + # CHECKOUT_REF=refs/heads/main + # PATH_IN_REPO=main + # Else it must be a tag. Set: + # CHECKOUT_REF=refs/tags/{tag} + # PATH_IN_REPO={tag} + # If not workflow dispatch + # If ref is 'refs/heads/main' => set 'main' + # Else it must be a tag => set {tag} + - name: Set checkout_ref and path_in_repo + run: | + if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then + if [ -z "${{ github.event.inputs.ref }}" ]; then + echo "Error: Missing ref input" + exit 1 + elif [ "${{ github.event.inputs.ref }}" == "main" ]; then + echo "CHECKOUT_REF=refs/heads/main" >> $GITHUB_ENV + echo "PATH_IN_REPO=main" >> $GITHUB_ENV + else + echo "CHECKOUT_REF=refs/tags/${{ github.event.inputs.ref }}" >> $GITHUB_ENV + echo "PATH_IN_REPO=${{ github.event.inputs.ref }}" >> $GITHUB_ENV + fi + elif [ "${{ github.ref }}" == "refs/heads/main" ]; then + echo "CHECKOUT_REF=${{ github.ref }}" >> $GITHUB_ENV + echo "PATH_IN_REPO=main" >> $GITHUB_ENV + else + # e.g. refs/tags/v0.28.1 -> v0.28.1 + echo "CHECKOUT_REF=${{ github.ref }}" >> $GITHUB_ENV + echo "PATH_IN_REPO=$(echo ${{ github.ref }} | sed 's/^refs\/tags\///')" >> $GITHUB_ENV + fi + - name: Print env vars + run: | + echo "CHECKOUT_REF: ${{ env.CHECKOUT_REF }}" + echo "PATH_IN_REPO: ${{ env.PATH_IN_REPO }}" + - uses: actions/checkout@v3 + with: + ref: ${{ env.CHECKOUT_REF }} + + # Setup + install dependencies + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.10" + - name: Install dependencies + run: | + pip install --upgrade pip + pip install --upgrade huggingface_hub + + # Check secret is set + - name: whoami + run: hf auth whoami + env: + HF_TOKEN: ${{ secrets.HF_TOKEN_MIRROR_COMMUNITY_PIPELINES }} + + # Push to HF! (under subfolder based on checkout ref) + # https://huggingface.co/datasets/diffusers/community-pipelines-mirror + - name: Mirror community pipeline to HF + run: hf upload diffusers/community-pipelines-mirror ./examples/community ${PATH_IN_REPO} --repo-type dataset + env: + PATH_IN_REPO: ${{ env.PATH_IN_REPO }} + HF_TOKEN: ${{ secrets.HF_TOKEN_MIRROR_COMMUNITY_PIPELINES }} + + - name: Report success status + if: ${{ success() }} + run: | + pip install requests && python utils/notify_community_pipelines_mirror.py --status=success + + - name: Report failure status + if: ${{ failure() }} + run: | + pip install requests && python utils/notify_community_pipelines_mirror.py --status=failure \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/nightly_tests.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/nightly_tests.yml new file mode 100644 index 0000000000000000000000000000000000000000..8b7e57e91297d34025c7b3f7ac75e586c2958ee2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/nightly_tests.yml @@ -0,0 +1,622 @@ +name: Nightly and release tests on main/release branch + +on: + workflow_dispatch: + schedule: + - cron: "0 0 * * *" # every day at midnight + +env: + DIFFUSERS_IS_CI: yes + HF_XET_HIGH_PERFORMANCE: 1 + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + PYTEST_TIMEOUT: 600 + RUN_SLOW: yes + RUN_NIGHTLY: yes + PIPELINE_USAGE_CUTOFF: 0 + SLACK_API_TOKEN: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }} + CONSOLIDATED_REPORT_PATH: consolidated_test_report.md + +jobs: + setup_torch_cuda_pipeline_matrix: + name: Setup Torch Pipelines CUDA Slow Tests Matrix + runs-on: + group: aws-general-8-plus + container: + image: diffusers/diffusers-pytorch-cpu + outputs: + pipeline_test_matrix: ${{ steps.fetch_pipeline_matrix.outputs.pipeline_test_matrix }} + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: Install dependencies + run: | + pip install -e .[test] + pip install huggingface_hub + - name: Fetch Pipeline Matrix + id: fetch_pipeline_matrix + run: | + matrix=$(python utils/fetch_torch_cuda_pipeline_test_matrix.py) + echo $matrix + echo "pipeline_test_matrix=$matrix" >> $GITHUB_OUTPUT + + - name: Pipeline Tests Artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: test-pipelines.json + path: reports + + run_nightly_tests_for_torch_pipelines: + name: Nightly Torch Pipelines CUDA Tests + needs: setup_torch_cuda_pipeline_matrix + strategy: + fail-fast: false + max-parallel: 8 + matrix: + module: ${{ fromJson(needs.setup_torch_cuda_pipeline_matrix.outputs.pipeline_test_matrix) }} + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: NVIDIA-SMI + run: nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + uv pip install pytest-reportlog + - name: Environment + run: | + python utils/print_env.py + - name: Pipeline CUDA Test + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_pipeline_${{ matrix.module }}_cuda \ + --report-log=tests_pipeline_${{ matrix.module }}_cuda.log \ + tests/pipelines/${{ matrix.module }} + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_pipeline_${{ matrix.module }}_cuda_stats.txt + cat reports/tests_pipeline_${{ matrix.module }}_cuda_failures_short.txt + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pipeline_${{ matrix.module }}_test_reports + path: reports + + run_nightly_tests_for_other_torch_modules: + name: Nightly Torch CUDA Tests + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + defaults: + run: + shell: bash + strategy: + fail-fast: false + max-parallel: 2 + matrix: + module: [models, schedulers, lora, others, single_file, examples] + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install peft@git+https://github.com/huggingface/peft.git + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + uv pip install pytest-reportlog + - name: Environment + run: python utils/print_env.py + + - name: Run nightly PyTorch CUDA tests for non-pipeline modules + if: ${{ matrix.module != 'examples'}} + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_torch_${{ matrix.module }}_cuda \ + --report-log=tests_torch_${{ matrix.module }}_cuda.log \ + tests/${{ matrix.module }} + + - name: Run nightly example tests with Torch + if: ${{ matrix.module == 'examples' }} + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + --make-reports=examples_torch_cuda \ + --report-log=examples_torch_cuda.log \ + examples/ + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_torch_${{ matrix.module }}_cuda_stats.txt + cat reports/tests_torch_${{ matrix.module }}_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_${{ matrix.module }}_cuda_test_reports + path: reports + + run_torch_compile_tests: + name: PyTorch Compile CUDA tests + + runs-on: + group: aws-g4dn-2xlarge + + container: + image: diffusers/diffusers-pytorch-cuda + options: --gpus all --shm-size "16gb" --ipc host + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality,training]" + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + - name: Environment + run: | + python utils/print_env.py + - name: Run torch compile tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + RUN_COMPILE: yes + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile -k "compile" --make-reports=tests_torch_compile_cuda tests/ + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_torch_compile_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_compile_test_reports + path: reports + + run_big_gpu_torch_tests: + name: Torch tests on big GPU + strategy: + fail-fast: false + max-parallel: 2 + runs-on: + group: aws-g6e-xlarge-plus + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: NVIDIA-SMI + run: nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install peft@git+https://github.com/huggingface/peft.git + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + uv pip install pytest-reportlog + - name: Environment + run: | + python utils/print_env.py + - name: Selected Torch CUDA Test on big GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + BIG_GPU_MEMORY: 40 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -m "big_accelerator" \ + --make-reports=tests_big_gpu_torch_cuda \ + --report-log=tests_big_gpu_torch_cuda.log \ + tests/ + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_big_gpu_torch_cuda_stats.txt + cat reports/tests_big_gpu_torch_cuda_failures_short.txt + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_cuda_big_gpu_test_reports + path: reports + + torch_minimum_version_cuda_tests: + name: Torch Minimum Version CUDA Tests + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-minimum-cuda + options: --shm-size "16gb" --ipc host --gpus all + defaults: + run: + shell: bash + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install peft@git+https://github.com/huggingface/peft.git + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + + - name: Environment + run: | + python utils/print_env.py + + - name: Run PyTorch CUDA tests + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_torch_minimum_version_cuda \ + tests/models/test_modeling_common.py \ + tests/pipelines/test_pipelines_common.py \ + tests/pipelines/test_pipeline_utils.py \ + tests/pipelines/test_pipelines.py \ + tests/pipelines/test_pipelines_auto.py \ + tests/schedulers/test_schedulers.py \ + tests/others + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_torch_minimum_version_cuda_stats.txt + cat reports/tests_torch_minimum_version_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_minimum_version_cuda_test_reports + path: reports + + run_nightly_quantization_tests: + name: Torch quantization nightly tests + strategy: + fail-fast: false + max-parallel: 2 + matrix: + config: + - backend: "bitsandbytes" + test_location: "bnb" + additional_deps: ["peft"] + - backend: "gguf" + test_location: "gguf" + additional_deps: ["peft", "kernels"] + - backend: "torchao" + test_location: "torchao" + additional_deps: [] + - backend: "optimum_quanto" + test_location: "quanto" + additional_deps: [] + - backend: "nvidia_modelopt" + test_location: "modelopt" + additional_deps: [] + runs-on: + group: aws-g6e-xlarge-plus + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "20gb" --ipc host --gpus all + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: NVIDIA-SMI + run: nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install -U ${{ matrix.config.backend }} + if [ "${{ join(matrix.config.additional_deps, ' ') }}" != "" ]; then + uv pip install ${{ join(matrix.config.additional_deps, ' ') }} + fi + uv pip install pytest-reportlog + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + - name: Environment + run: | + python utils/print_env.py + - name: ${{ matrix.config.backend }} quantization tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + BIG_GPU_MEMORY: 40 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + --make-reports=tests_${{ matrix.config.backend }}_torch_cuda \ + --report-log=tests_${{ matrix.config.backend }}_torch_cuda.log \ + tests/quantization/${{ matrix.config.test_location }} + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_${{ matrix.config.backend }}_torch_cuda_stats.txt + cat reports/tests_${{ matrix.config.backend }}_torch_cuda_failures_short.txt + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_cuda_${{ matrix.config.backend }}_reports + path: reports + + run_nightly_pipeline_level_quantization_tests: + name: Torch quantization nightly tests + strategy: + fail-fast: false + max-parallel: 2 + runs-on: + group: aws-g6e-xlarge-plus + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "20gb" --ipc host --gpus all + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: NVIDIA-SMI + run: nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install -U bitsandbytes optimum_quanto + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + uv pip install pytest-reportlog + - name: Environment + run: | + python utils/print_env.py + - name: Pipeline-level quantization tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + BIG_GPU_MEMORY: 40 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + --make-reports=tests_pipeline_level_quant_torch_cuda \ + --report-log=tests_pipeline_level_quant_torch_cuda.log \ + tests/quantization/test_pipeline_level_quantization.py + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_pipeline_level_quant_torch_cuda_stats.txt + cat reports/tests_pipeline_level_quant_torch_cuda_failures_short.txt + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_cuda_pipeline_level_quant_reports + path: reports + + generate_consolidated_report: + name: Generate Consolidated Test Report + needs: [ + run_nightly_tests_for_torch_pipelines, + run_nightly_tests_for_other_torch_modules, + run_torch_compile_tests, + run_big_gpu_torch_tests, + run_nightly_quantization_tests, + run_nightly_pipeline_level_quantization_tests, + # run_nightly_onnx_tests, + torch_minimum_version_cuda_tests, + # run_flax_tpu_tests + ] + if: always() + runs-on: + group: aws-general-8-plus + container: + image: diffusers/diffusers-pytorch-cpu + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Create reports directory + run: mkdir -p combined_reports + + - name: Download all test reports + uses: actions/download-artifact@v4 + with: + path: artifacts + + - name: Prepare reports + run: | + # Move all report files to a single directory for processing + find artifacts -name "*.txt" -exec cp {} combined_reports/ \; + + - name: Install dependencies + run: | + pip install -e .[test] + pip install slack_sdk tabulate + + - name: Generate consolidated report + run: | + python utils/consolidated_test_report.py \ + --reports_dir combined_reports \ + --output_file $CONSOLIDATED_REPORT_PATH \ + --slack_channel_name diffusers-ci-nightly + + - name: Show consolidated report + run: | + cat $CONSOLIDATED_REPORT_PATH >> $GITHUB_STEP_SUMMARY + + - name: Upload consolidated report + uses: actions/upload-artifact@v4 + with: + name: consolidated_test_report + path: ${{ env.CONSOLIDATED_REPORT_PATH }} + +# M1 runner currently not well supported +# TODO: (Dhruv) add these back when we setup better testing for Apple Silicon +# run_nightly_tests_apple_m1: +# name: Nightly PyTorch MPS tests on MacOS +# runs-on: [ self-hosted, apple-m1 ] +# if: github.event_name == 'schedule' +# +# steps: +# - name: Checkout diffusers +# uses: actions/checkout@v3 +# with: +# fetch-depth: 2 +# +# - name: Clean checkout +# shell: arch -arch arm64 bash {0} +# run: | +# git clean -fxd +# - name: Setup miniconda +# uses: ./.github/actions/setup-miniconda +# with: +# python-version: 3.9 +# +# - name: Install dependencies +# shell: arch -arch arm64 bash {0} +# run: | +# ${CONDA_RUN} pip install --upgrade pip uv +# ${CONDA_RUN} uv pip install -e ".[quality]" +# ${CONDA_RUN} uv pip install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cpu +# ${CONDA_RUN} uv pip install accelerate@git+https://github.com/huggingface/accelerate +# ${CONDA_RUN} uv pip install pytest-reportlog +# - name: Environment +# shell: arch -arch arm64 bash {0} +# run: | +# ${CONDA_RUN} python utils/print_env.py +# - name: Run nightly PyTorch tests on M1 (MPS) +# shell: arch -arch arm64 bash {0} +# env: +# HF_HOME: /System/Volumes/Data/mnt/cache +# HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} +# run: | +# ${CONDA_RUN} pytest -n 1 --make-reports=tests_torch_mps \ +# --report-log=tests_torch_mps.log \ +# tests/ +# - name: Failure short reports +# if: ${{ failure() }} +# run: cat reports/tests_torch_mps_failures_short.txt +# +# - name: Test suite reports artifacts +# if: ${{ always() }} +# uses: actions/upload-artifact@v4 +# with: +# name: torch_mps_test_reports +# path: reports +# +# - name: Generate Report and Notify Channel +# if: always() +# run: | +# pip install slack_sdk tabulate +# python utils/log_reports.py >> $GITHUB_STEP_SUMMARY run_nightly_tests_apple_m1: +# name: Nightly PyTorch MPS tests on MacOS +# runs-on: [ self-hosted, apple-m1 ] +# if: github.event_name == 'schedule' +# +# steps: +# - name: Checkout diffusers +# uses: actions/checkout@v3 +# with: +# fetch-depth: 2 +# +# - name: Clean checkout +# shell: arch -arch arm64 bash {0} +# run: | +# git clean -fxd +# - name: Setup miniconda +# uses: ./.github/actions/setup-miniconda +# with: +# python-version: 3.9 +# +# - name: Install dependencies +# shell: arch -arch arm64 bash {0} +# run: | +# ${CONDA_RUN} pip install --upgrade pip uv +# ${CONDA_RUN} uv pip install -e ".[quality]" +# ${CONDA_RUN} uv pip install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cpu +# ${CONDA_RUN} uv pip install accelerate@git+https://github.com/huggingface/accelerate +# ${CONDA_RUN} uv pip install pytest-reportlog +# - name: Environment +# shell: arch -arch arm64 bash {0} +# run: | +# ${CONDA_RUN} python utils/print_env.py +# - name: Run nightly PyTorch tests on M1 (MPS) +# shell: arch -arch arm64 bash {0} +# env: +# HF_HOME: /System/Volumes/Data/mnt/cache +# HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} +# run: | +# ${CONDA_RUN} pytest -n 1 --make-reports=tests_torch_mps \ +# --report-log=tests_torch_mps.log \ +# tests/ +# - name: Failure short reports +# if: ${{ failure() }} +# run: cat reports/tests_torch_mps_failures_short.txt +# +# - name: Test suite reports artifacts +# if: ${{ always() }} +# uses: actions/upload-artifact@v4 +# with: +# name: torch_mps_test_reports +# path: reports +# +# - name: Generate Report and Notify Channel +# if: always() +# run: | +# pip install slack_sdk tabulate +# python utils/log_reports.py >> $GITHUB_STEP_SUMMARY diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/notify_slack_about_release.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/notify_slack_about_release.yml new file mode 100644 index 0000000000000000000000000000000000000000..612ad4e24503a8747d58e5b3273557892782fbe8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/notify_slack_about_release.yml @@ -0,0 +1,23 @@ +name: Notify Slack about a release + +on: + workflow_dispatch: + release: + types: [published] + +jobs: + build: + runs-on: ubuntu-22.04 + + steps: + - uses: actions/checkout@v3 + + - name: Setup Python + uses: actions/setup-python@v4 + with: + python-version: '3.8' + + - name: Notify Slack about the release + env: + SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} + run: pip install requests && python utils/notify_slack_about_release.py diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_dependency_test.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_dependency_test.yml new file mode 100644 index 0000000000000000000000000000000000000000..b914d1076190adb8cd2d3921d65c02d21a036dd9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_dependency_test.yml @@ -0,0 +1,32 @@ +name: Run dependency tests + +on: + pull_request: + branches: + - main + paths: + - "src/diffusers/**.py" + push: + branches: + - main + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +jobs: + check_dependencies: + runs-on: ubuntu-22.04 + steps: + - uses: actions/checkout@v3 + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.8" + - name: Install dependencies + run: | + pip install -e . + pip install pytest + - name: Check for soft dependencies + run: | + pytest tests/others/test_dependencies.py diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_modular_tests.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_modular_tests.yml new file mode 100644 index 0000000000000000000000000000000000000000..13c228621f5c7c224d7dc4d88e636f75563ff55a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_modular_tests.yml @@ -0,0 +1,139 @@ +name: Fast PR tests for Modular + +on: + pull_request: + branches: [main] + paths: + - "src/diffusers/modular_pipelines/**.py" + - "src/diffusers/models/modeling_utils.py" + - "src/diffusers/models/model_loading_utils.py" + - "src/diffusers/pipelines/pipeline_utils.py" + - "src/diffusers/pipeline_loading_utils.py" + - "src/diffusers/loaders/lora_base.py" + - "src/diffusers/loaders/lora_pipeline.py" + - "src/diffusers/loaders/peft.py" + - "tests/modular_pipelines/**.py" + - ".github/**.yml" + - "utils/**.py" + - "setup.py" + push: + branches: + - ci-* + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +env: + DIFFUSERS_IS_CI: yes + HF_XET_HIGH_PERFORMANCE: 1 + OMP_NUM_THREADS: 4 + MKL_NUM_THREADS: 4 + PYTEST_TIMEOUT: 60 + +jobs: + check_code_quality: + runs-on: ubuntu-22.04 + steps: + - uses: actions/checkout@v3 + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.10" + - name: Install dependencies + run: | + pip install --upgrade pip + pip install .[quality] + - name: Check quality + run: make quality + - name: Check if failure + if: ${{ failure() }} + run: | + echo "Quality check failed. Please ensure the right dependency versions are installed with 'pip install -e .[quality]' and run 'make style && make quality'" >> $GITHUB_STEP_SUMMARY + + check_repository_consistency: + needs: check_code_quality + runs-on: ubuntu-22.04 + steps: + - uses: actions/checkout@v3 + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.10" + - name: Install dependencies + run: | + pip install --upgrade pip + pip install .[quality] + - name: Check repo consistency + run: | + python utils/check_copies.py + python utils/check_dummies.py + python utils/check_support_list.py + make deps_table_check_updated + - name: Check if failure + if: ${{ failure() }} + run: | + echo "Repo consistency check failed. Please ensure the right dependency versions are installed with 'pip install -e .[quality]' and run 'make fix-copies'" >> $GITHUB_STEP_SUMMARY + + run_fast_tests: + needs: [check_code_quality, check_repository_consistency] + strategy: + fail-fast: false + matrix: + config: + - name: Fast PyTorch Modular Pipeline CPU tests + framework: pytorch_pipelines + runner: aws-highmemory-32-plus + image: diffusers/diffusers-pytorch-cpu + report: torch_cpu_modular_pipelines + + name: ${{ matrix.config.name }} + + runs-on: + group: ${{ matrix.config.runner }} + + container: + image: ${{ matrix.config.image }} + options: --shm-size "16gb" --ipc host -v /mnt/hf_cache:/mnt/cache/ + + defaults: + run: + shell: bash + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git --no-deps + + - name: Environment + run: | + python utils/print_env.py + + - name: Run fast PyTorch Pipeline CPU tests + if: ${{ matrix.config.framework == 'pytorch_pipelines' }} + run: | + pytest -n 8 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_${{ matrix.config.report }} \ + tests/modular_pipelines + + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_${{ matrix.config.report }}_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pr_${{ matrix.config.framework }}_${{ matrix.config.report }}_test_reports + path: reports + + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_style_bot.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_style_bot.yml new file mode 100644 index 0000000000000000000000000000000000000000..c60004720783d01cdd7dd3c3376445c5ab42f7c3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_style_bot.yml @@ -0,0 +1,17 @@ +name: PR Style Bot + +on: + issue_comment: + types: [created] + +permissions: + contents: write + pull-requests: write + +jobs: + style: + uses: huggingface/huggingface_hub/.github/workflows/style-bot-action.yml@main + with: + python_quality_dependencies: "[quality]" + secrets: + bot_token: ${{ secrets.HF_STYLE_BOT_ACTION }} \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_test_fetcher.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_test_fetcher.yml new file mode 100644 index 0000000000000000000000000000000000000000..83b2ab4edbf6ed3392ef09e57708b39dfcaa0185 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_test_fetcher.yml @@ -0,0 +1,170 @@ +name: Fast tests for PRs - Test Fetcher + +on: workflow_dispatch + +env: + DIFFUSERS_IS_CI: yes + OMP_NUM_THREADS: 4 + MKL_NUM_THREADS: 4 + PYTEST_TIMEOUT: 60 + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +jobs: + setup_pr_tests: + name: Setup PR Tests + runs-on: + group: aws-general-8-plus + container: + image: diffusers/diffusers-pytorch-cpu + options: --shm-size "16gb" --ipc host -v /mnt/hf_cache:/mnt/cache/ + defaults: + run: + shell: bash + outputs: + matrix: ${{ steps.set_matrix.outputs.matrix }} + test_map: ${{ steps.set_matrix.outputs.test_map }} + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 0 + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + - name: Environment + run: | + python utils/print_env.py + echo $(git --version) + - name: Fetch Tests + run: | + python utils/tests_fetcher.py | tee test_preparation.txt + - name: Report fetched tests + uses: actions/upload-artifact@v3 + with: + name: test_fetched + path: test_preparation.txt + - id: set_matrix + name: Create Test Matrix + # The `keys` is used as GitHub actions matrix for jobs, i.e. `models`, `pipelines`, etc. + # The `test_map` is used to get the actual identified test files under each key. + # If no test to run (so no `test_map.json` file), create a dummy map (empty matrix will fail) + run: | + if [ -f test_map.json ]; then + keys=$(python3 -c 'import json; fp = open("test_map.json"); test_map = json.load(fp); fp.close(); d = list(test_map.keys()); print(json.dumps(d))') + test_map=$(python3 -c 'import json; fp = open("test_map.json"); test_map = json.load(fp); fp.close(); print(json.dumps(test_map))') + else + keys=$(python3 -c 'keys = ["dummy"]; print(keys)') + test_map=$(python3 -c 'test_map = {"dummy": []}; print(test_map)') + fi + echo $keys + echo $test_map + echo "matrix=$keys" >> $GITHUB_OUTPUT + echo "test_map=$test_map" >> $GITHUB_OUTPUT + + run_pr_tests: + name: Run PR Tests + needs: setup_pr_tests + if: contains(fromJson(needs.setup_pr_tests.outputs.matrix), 'dummy') != true + strategy: + fail-fast: false + max-parallel: 2 + matrix: + modules: ${{ fromJson(needs.setup_pr_tests.outputs.matrix) }} + runs-on: + group: aws-general-8-plus + container: + image: diffusers/diffusers-pytorch-cpu + options: --shm-size "16gb" --ipc host -v /mnt/hf_cache:/mnt/cache/ + defaults: + run: + shell: bash + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install accelerate + + - name: Environment + run: | + python utils/print_env.py + + - name: Run all selected tests on CPU + run: | + pytest -n 2 --dist=loadfile -v --make-reports=${{ matrix.modules }}_tests_cpu ${{ fromJson(needs.setup_pr_tests.outputs.test_map)[matrix.modules] }} + + - name: Failure short reports + if: ${{ failure() }} + continue-on-error: true + run: | + cat reports/${{ matrix.modules }}_tests_cpu_stats.txt + cat reports/${{ matrix.modules }}_tests_cpu_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v3 + with: + name: ${{ matrix.modules }}_test_reports + path: reports + + run_staging_tests: + strategy: + fail-fast: false + matrix: + config: + - name: Hub tests for models, schedulers, and pipelines + framework: hub_tests_pytorch + runner: aws-general-8-plus + image: diffusers/diffusers-pytorch-cpu + report: torch_hub + + name: ${{ matrix.config.name }} + runs-on: + group: ${{ matrix.config.runner }} + container: + image: ${{ matrix.config.image }} + options: --shm-size "16gb" --ipc host -v /mnt/hf_cache:/mnt/cache/ + + defaults: + run: + shell: bash + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + pip install -e [quality] + + - name: Environment + run: | + python utils/print_env.py + + - name: Run Hub tests for models, schedulers, and pipelines on a staging env + if: ${{ matrix.config.framework == 'hub_tests_pytorch' }} + run: | + HUGGINGFACE_CO_STAGING=true pytest \ + -m "is_staging_test" \ + --make-reports=tests_${{ matrix.config.report }} \ + tests + + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_${{ matrix.config.report }}_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pr_${{ matrix.config.report }}_test_reports + path: reports diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_tests.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_tests.yml new file mode 100644 index 0000000000000000000000000000000000000000..674e62ff443acd52cb68e24f60f14a3acc7ecc91 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_tests.yml @@ -0,0 +1,280 @@ +name: Fast tests for PRs + +on: + pull_request: + branches: [main] + paths: + - "src/diffusers/**.py" + - "benchmarks/**.py" + - "examples/**.py" + - "scripts/**.py" + - "tests/**.py" + - ".github/**.yml" + - "utils/**.py" + - "setup.py" + push: + branches: + - ci-* + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +env: + DIFFUSERS_IS_CI: yes + HF_XET_HIGH_PERFORMANCE: 1 + OMP_NUM_THREADS: 4 + MKL_NUM_THREADS: 4 + PYTEST_TIMEOUT: 60 + +jobs: + check_code_quality: + runs-on: ubuntu-22.04 + steps: + - uses: actions/checkout@v3 + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.8" + - name: Install dependencies + run: | + pip install --upgrade pip + pip install .[quality] + - name: Check quality + run: make quality + - name: Check if failure + if: ${{ failure() }} + run: | + echo "Quality check failed. Please ensure the right dependency versions are installed with 'pip install -e .[quality]' and run 'make style && make quality'" >> $GITHUB_STEP_SUMMARY + + check_repository_consistency: + needs: check_code_quality + runs-on: ubuntu-22.04 + steps: + - uses: actions/checkout@v3 + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.8" + - name: Install dependencies + run: | + pip install --upgrade pip + pip install .[quality] + - name: Check repo consistency + run: | + python utils/check_copies.py + python utils/check_dummies.py + python utils/check_support_list.py + make deps_table_check_updated + - name: Check if failure + if: ${{ failure() }} + run: | + echo "Repo consistency check failed. Please ensure the right dependency versions are installed with 'pip install -e .[quality]' and run 'make fix-copies'" >> $GITHUB_STEP_SUMMARY + + run_fast_tests: + needs: [check_code_quality, check_repository_consistency] + strategy: + fail-fast: false + matrix: + config: + - name: Fast PyTorch Pipeline CPU tests + framework: pytorch_pipelines + runner: aws-highmemory-32-plus + image: diffusers/diffusers-pytorch-cpu + report: torch_cpu_pipelines + - name: Fast PyTorch Models & Schedulers CPU tests + framework: pytorch_models + runner: aws-general-8-plus + image: diffusers/diffusers-pytorch-cpu + report: torch_cpu_models_schedulers + - name: PyTorch Example CPU tests + framework: pytorch_examples + runner: aws-general-8-plus + image: diffusers/diffusers-pytorch-cpu + report: torch_example_cpu + + name: ${{ matrix.config.name }} + + runs-on: + group: ${{ matrix.config.runner }} + + container: + image: ${{ matrix.config.image }} + options: --shm-size "16gb" --ipc host -v /mnt/hf_cache:/mnt/cache/ + + defaults: + run: + shell: bash + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git --no-deps + + - name: Environment + run: | + python utils/print_env.py + + - name: Run fast PyTorch Pipeline CPU tests + if: ${{ matrix.config.framework == 'pytorch_pipelines' }} + run: | + pytest -n 8 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_${{ matrix.config.report }} \ + tests/pipelines + + - name: Run fast PyTorch Model Scheduler CPU tests + if: ${{ matrix.config.framework == 'pytorch_models' }} + run: | + pytest -n 4 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx and not Dependency" \ + --make-reports=tests_${{ matrix.config.report }} \ + tests/models tests/schedulers tests/others + + - name: Run example PyTorch CPU tests + if: ${{ matrix.config.framework == 'pytorch_examples' }} + run: | + uv pip install ".[training]" + pytest -n 4 --max-worker-restart=0 --dist=loadfile \ + --make-reports=tests_${{ matrix.config.report }} \ + examples + + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_${{ matrix.config.report }}_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pr_${{ matrix.config.framework }}_${{ matrix.config.report }}_test_reports + path: reports + + run_staging_tests: + needs: [check_code_quality, check_repository_consistency] + strategy: + fail-fast: false + matrix: + config: + - name: Hub tests for models, schedulers, and pipelines + framework: hub_tests_pytorch + runner: + group: aws-general-8-plus + image: diffusers/diffusers-pytorch-cpu + report: torch_hub + + name: ${{ matrix.config.name }} + + runs-on: ${{ matrix.config.runner }} + + container: + image: ${{ matrix.config.image }} + options: --shm-size "16gb" --ipc host -v /mnt/hf_cache:/mnt/cache/ + + defaults: + run: + shell: bash + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + + - name: Environment + run: | + python utils/print_env.py + + - name: Run Hub tests for models, schedulers, and pipelines on a staging env + if: ${{ matrix.config.framework == 'hub_tests_pytorch' }} + run: | + HUGGINGFACE_CO_STAGING=true pytest \ + -m "is_staging_test" \ + --make-reports=tests_${{ matrix.config.report }} \ + tests + + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_${{ matrix.config.report }}_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pr_${{ matrix.config.report }}_test_reports + path: reports + + run_lora_tests: + needs: [check_code_quality, check_repository_consistency] + strategy: + fail-fast: false + + name: LoRA tests with PEFT main + + runs-on: + group: aws-general-8-plus + + container: + image: diffusers/diffusers-pytorch-cpu + options: --shm-size "16gb" --ipc host -v /mnt/hf_cache:/mnt/cache/ + + defaults: + run: + shell: bash + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + # TODO (sayakpaul, DN6): revisit `--no-deps` + uv pip install -U peft@git+https://github.com/huggingface/peft.git --no-deps + uv pip install -U tokenizers + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git --no-deps + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + + - name: Environment + run: | + python utils/print_env.py + + - name: Run fast PyTorch LoRA tests with PEFT + run: | + pytest -n 4 --max-worker-restart=0 --dist=loadfile \ + \ + --make-reports=tests_peft_main \ + tests/lora/ + pytest -n 4 --max-worker-restart=0 --dist=loadfile \ + \ + --make-reports=tests_models_lora_peft_main \ + tests/models/ -k "lora" + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_peft_main_failures_short.txt + cat reports/tests_models_lora_peft_main_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pr_main_test_reports + path: reports + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_tests_gpu.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_tests_gpu.yml new file mode 100644 index 0000000000000000000000000000000000000000..468979d379c135c29f9f3585cb00b7017c23f3a2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_tests_gpu.yml @@ -0,0 +1,294 @@ +name: Fast GPU Tests on PR + +on: + pull_request: + branches: main + paths: + - "src/diffusers/models/modeling_utils.py" + - "src/diffusers/models/model_loading_utils.py" + - "src/diffusers/pipelines/pipeline_utils.py" + - "src/diffusers/pipeline_loading_utils.py" + - "src/diffusers/loaders/lora_base.py" + - "src/diffusers/loaders/lora_pipeline.py" + - "src/diffusers/loaders/peft.py" + - "tests/pipelines/test_pipelines_common.py" + - "tests/models/test_modeling_common.py" + - "examples/**/*.py" + workflow_dispatch: + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +env: + DIFFUSERS_IS_CI: yes + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + HF_XET_HIGH_PERFORMANCE: 1 + PYTEST_TIMEOUT: 600 + PIPELINE_USAGE_CUTOFF: 1000000000 # set high cutoff so that only always-test pipelines run + +jobs: + check_code_quality: + runs-on: ubuntu-22.04 + steps: + - uses: actions/checkout@v3 + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.8" + - name: Install dependencies + run: | + pip install --upgrade pip + pip install .[quality] + - name: Check quality + run: make quality + - name: Check if failure + if: ${{ failure() }} + run: | + echo "Quality check failed. Please ensure the right dependency versions are installed with 'pip install -e .[quality]' and run 'make style && make quality'" >> $GITHUB_STEP_SUMMARY + + check_repository_consistency: + needs: check_code_quality + runs-on: ubuntu-22.04 + steps: + - uses: actions/checkout@v3 + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.8" + - name: Install dependencies + run: | + pip install --upgrade pip + pip install .[quality] + - name: Check repo consistency + run: | + python utils/check_copies.py + python utils/check_dummies.py + python utils/check_support_list.py + make deps_table_check_updated + - name: Check if failure + if: ${{ failure() }} + run: | + echo "Repo consistency check failed. Please ensure the right dependency versions are installed with 'pip install -e .[quality]' and run 'make fix-copies'" >> $GITHUB_STEP_SUMMARY + + setup_torch_cuda_pipeline_matrix: + needs: [check_code_quality, check_repository_consistency] + name: Setup Torch Pipelines CUDA Slow Tests Matrix + runs-on: + group: aws-general-8-plus + container: + image: diffusers/diffusers-pytorch-cpu + outputs: + pipeline_test_matrix: ${{ steps.fetch_pipeline_matrix.outputs.pipeline_test_matrix }} + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + - name: Environment + run: | + python utils/print_env.py + - name: Fetch Pipeline Matrix + id: fetch_pipeline_matrix + run: | + matrix=$(python utils/fetch_torch_cuda_pipeline_test_matrix.py) + echo $matrix + echo "pipeline_test_matrix=$matrix" >> $GITHUB_OUTPUT + - name: Pipeline Tests Artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: test-pipelines.json + path: reports + + torch_pipelines_cuda_tests: + name: Torch Pipelines CUDA Tests + needs: setup_torch_cuda_pipeline_matrix + strategy: + fail-fast: false + max-parallel: 8 + matrix: + module: ${{ fromJson(needs.setup_torch_cuda_pipeline_matrix.outputs.pipeline_test_matrix) }} + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + + - name: Environment + run: | + python utils/print_env.py + - name: Extract tests + id: extract_tests + run: | + pattern=$(python utils/extract_tests_from_mixin.py --type pipeline) + echo "$pattern" > /tmp/test_pattern.txt + echo "pattern_file=/tmp/test_pattern.txt" >> $GITHUB_OUTPUT + + - name: PyTorch CUDA checkpoint tests on Ubuntu + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + if [ "${{ matrix.module }}" = "ip_adapters" ]; then + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_pipeline_${{ matrix.module }}_cuda \ + tests/pipelines/${{ matrix.module }} + else + pattern=$(cat ${{ steps.extract_tests.outputs.pattern_file }}) + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx and $pattern" \ + --make-reports=tests_pipeline_${{ matrix.module }}_cuda \ + tests/pipelines/${{ matrix.module }} + fi + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_pipeline_${{ matrix.module }}_cuda_stats.txt + cat reports/tests_pipeline_${{ matrix.module }}_cuda_failures_short.txt + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pipeline_${{ matrix.module }}_test_reports + path: reports + + torch_cuda_tests: + name: Torch CUDA Tests + needs: [check_code_quality, check_repository_consistency] + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + defaults: + run: + shell: bash + strategy: + fail-fast: false + max-parallel: 4 + matrix: + module: [models, schedulers, lora, others] + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install peft@git+https://github.com/huggingface/peft.git + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + + - name: Environment + run: | + python utils/print_env.py + + - name: Extract tests + id: extract_tests + run: | + pattern=$(python utils/extract_tests_from_mixin.py --type ${{ matrix.module }}) + echo "$pattern" > /tmp/test_pattern.txt + echo "pattern_file=/tmp/test_pattern.txt" >> $GITHUB_OUTPUT + + - name: Run PyTorch CUDA tests + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pattern=$(cat ${{ steps.extract_tests.outputs.pattern_file }}) + if [ -z "$pattern" ]; then + pytest -n 1 --max-worker-restart=0 --dist=loadfile -k "not Flax and not Onnx" tests/${{ matrix.module }} \ + --make-reports=tests_torch_cuda_${{ matrix.module }} + else + pytest -n 1 --max-worker-restart=0 --dist=loadfile -k "not Flax and not Onnx and $pattern" tests/${{ matrix.module }} \ + --make-reports=tests_torch_cuda_${{ matrix.module }} + fi + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_torch_cuda_${{ matrix.module }}_stats.txt + cat reports/tests_torch_cuda_${{ matrix.module }}_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_cuda_test_reports_${{ matrix.module }} + path: reports + + run_examples_tests: + name: Examples PyTorch CUDA tests on Ubuntu + needs: [check_code_quality, check_repository_consistency] + runs-on: + group: aws-g4dn-2xlarge + + container: + image: diffusers/diffusers-pytorch-cuda + options: --gpus all --shm-size "16gb" --ipc host + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + uv pip install -e ".[quality,training]" + + - name: Environment + run: | + python utils/print_env.py + + - name: Run example tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + run: | + uv pip install ".[training]" + pytest -n 1 --max-worker-restart=0 --dist=loadfile --make-reports=examples_torch_cuda examples/ + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/examples_torch_cuda_stats.txt + cat reports/examples_torch_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: examples_test_reports + path: reports + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_torch_dependency_test.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_torch_dependency_test.yml new file mode 100644 index 0000000000000000000000000000000000000000..4b6160ff71e2c83d43b10bf110da3583bff01d8a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pr_torch_dependency_test.yml @@ -0,0 +1,32 @@ +name: Run Torch dependency tests + +on: + pull_request: + branches: + - main + paths: + - "src/diffusers/**.py" + push: + branches: + - main + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +jobs: + check_torch_dependencies: + runs-on: ubuntu-22.04 + steps: + - uses: actions/checkout@v3 + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: "3.8" + - name: Install dependencies + run: | + pip install -e . + pip install torch torchvision torchaudio pytest + - name: Check for soft dependencies + run: | + pytest tests/others/test_dependencies.py diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests.yml new file mode 100644 index 0000000000000000000000000000000000000000..7b1c441d3dc0a1c907fe0cd72ad5373689382e08 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests.yml @@ -0,0 +1,292 @@ +name: Fast GPU Tests on main + +on: + workflow_dispatch: + push: + branches: + - main + paths: + - "src/diffusers/**.py" + - "examples/**.py" + - "tests/**.py" + +env: + DIFFUSERS_IS_CI: yes + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + HF_XET_HIGH_PERFORMANCE: 1 + PYTEST_TIMEOUT: 600 + PIPELINE_USAGE_CUTOFF: 50000 + +jobs: + setup_torch_cuda_pipeline_matrix: + name: Setup Torch Pipelines CUDA Slow Tests Matrix + runs-on: + group: aws-general-8-plus + container: + image: diffusers/diffusers-pytorch-cpu + outputs: + pipeline_test_matrix: ${{ steps.fetch_pipeline_matrix.outputs.pipeline_test_matrix }} + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + - name: Environment + run: | + python utils/print_env.py + - name: Fetch Pipeline Matrix + id: fetch_pipeline_matrix + run: | + matrix=$(python utils/fetch_torch_cuda_pipeline_test_matrix.py) + echo $matrix + echo "pipeline_test_matrix=$matrix" >> $GITHUB_OUTPUT + - name: Pipeline Tests Artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: test-pipelines.json + path: reports + + torch_pipelines_cuda_tests: + name: Torch Pipelines CUDA Tests + needs: setup_torch_cuda_pipeline_matrix + strategy: + fail-fast: false + max-parallel: 8 + matrix: + module: ${{ fromJson(needs.setup_torch_cuda_pipeline_matrix.outputs.pipeline_test_matrix) }} + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + - name: Environment + run: | + python utils/print_env.py + - name: PyTorch CUDA checkpoint tests on Ubuntu + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_pipeline_${{ matrix.module }}_cuda \ + tests/pipelines/${{ matrix.module }} + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_pipeline_${{ matrix.module }}_cuda_stats.txt + cat reports/tests_pipeline_${{ matrix.module }}_cuda_failures_short.txt + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pipeline_${{ matrix.module }}_test_reports + path: reports + + torch_cuda_tests: + name: Torch CUDA Tests + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + defaults: + run: + shell: bash + strategy: + fail-fast: false + max-parallel: 2 + matrix: + module: [models, schedulers, lora, others, single_file] + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install peft@git+https://github.com/huggingface/peft.git + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + + - name: Environment + run: | + python utils/print_env.py + + - name: Run PyTorch CUDA tests + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_torch_cuda_${{ matrix.module }} \ + tests/${{ matrix.module }} + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_torch_cuda_${{ matrix.module }}_stats.txt + cat reports/tests_torch_cuda_${{ matrix.module }}_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_cuda_test_reports_${{ matrix.module }} + path: reports + + run_torch_compile_tests: + name: PyTorch Compile CUDA tests + + runs-on: + group: aws-g4dn-2xlarge + + container: + image: diffusers/diffusers-pytorch-cuda + options: --gpus all --shm-size "16gb" --ipc host + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality,training]" + #uv pip uninstall transformers huggingface_hub && uv pip install --prerelease allow -U transformers@git+https://github.com/huggingface/transformers.git + uv pip uninstall transformers huggingface_hub && uv pip install transformers==4.57.1 + - name: Environment + run: | + python utils/print_env.py + - name: Run example tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + RUN_COMPILE: yes + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile -k "compile" --make-reports=tests_torch_compile_cuda tests/ + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_torch_compile_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_compile_test_reports + path: reports + + run_xformers_tests: + name: PyTorch xformers CUDA tests + + runs-on: + group: aws-g4dn-2xlarge + + container: + image: diffusers/diffusers-pytorch-xformers-cuda + options: --gpus all --shm-size "16gb" --ipc host + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality,training]" + - name: Environment + run: | + python utils/print_env.py + - name: Run example tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile -k "xformers" --make-reports=tests_torch_xformers_cuda tests/ + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_torch_xformers_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_xformers_test_reports + path: reports + + run_examples_tests: + name: Examples PyTorch CUDA tests on Ubuntu + + runs-on: + group: aws-g4dn-2xlarge + + container: + image: diffusers/diffusers-pytorch-cuda + options: --gpus all --shm-size "16gb" --ipc host + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality,training]" + + - name: Environment + run: | + python utils/print_env.py + + - name: Run example tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + run: | + uv pip install ".[training]" + pytest -n 1 --max-worker-restart=0 --dist=loadfile --make-reports=examples_torch_cuda examples/ + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/examples_torch_cuda_stats.txt + cat reports/examples_torch_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: examples_test_reports + path: reports diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests_fast.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests_fast.yml new file mode 100644 index 0000000000000000000000000000000000000000..38cbffaa63155b9af58989099fceada4a537b300 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests_fast.yml @@ -0,0 +1,94 @@ +name: Fast tests on main + +on: + push: + branches: + - main + paths: + - "src/diffusers/**.py" + - "examples/**.py" + - "tests/**.py" + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +env: + DIFFUSERS_IS_CI: yes + HF_HOME: /mnt/cache + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + HF_XET_HIGH_PERFORMANCE: 1 + PYTEST_TIMEOUT: 600 + RUN_SLOW: no + +jobs: + run_fast_tests: + strategy: + fail-fast: false + matrix: + config: + - name: Fast PyTorch CPU tests on Ubuntu + framework: pytorch + runner: aws-general-8-plus + image: diffusers/diffusers-pytorch-cpu + report: torch_cpu + - name: PyTorch Example CPU tests on Ubuntu + framework: pytorch_examples + runner: aws-general-8-plus + image: diffusers/diffusers-pytorch-cpu + report: torch_example_cpu + + name: ${{ matrix.config.name }} + + runs-on: + group: ${{ matrix.config.runner }} + + container: + image: ${{ matrix.config.image }} + options: --shm-size "16gb" --ipc host -v /mnt/hf_cache:/mnt/cache/ + + defaults: + run: + shell: bash + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + + - name: Environment + run: | + python utils/print_env.py + + - name: Run fast PyTorch CPU tests + if: ${{ matrix.config.framework == 'pytorch' }} + run: | + pytest -n 4 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_${{ matrix.config.report }} \ + tests/ + + - name: Run example PyTorch CPU tests + if: ${{ matrix.config.framework == 'pytorch_examples' }} + run: | + uv pip install ".[training]" + pytest -n 4 --max-worker-restart=0 --dist=loadfile \ + --make-reports=tests_${{ matrix.config.report }} \ + examples + + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_${{ matrix.config.report }}_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pr_${{ matrix.config.report }}_test_reports + path: reports diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests_mps.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests_mps.yml new file mode 100644 index 0000000000000000000000000000000000000000..2d6feb59281521edd9bc7a76a7a03bdc5fa0bf59 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/push_tests_mps.yml @@ -0,0 +1,71 @@ +name: Fast mps tests on main + +on: + workflow_dispatch: + +env: + DIFFUSERS_IS_CI: yes + HF_HOME: /mnt/cache + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + HF_XET_HIGH_PERFORMANCE: 1 + PYTEST_TIMEOUT: 600 + RUN_SLOW: no + +concurrency: + group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }} + cancel-in-progress: true + +jobs: + run_fast_tests_apple_m1: + name: Fast PyTorch MPS tests on MacOS + runs-on: macos-13-xlarge + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Clean checkout + shell: arch -arch arm64 bash {0} + run: | + git clean -fxd + + - name: Setup miniconda + uses: ./.github/actions/setup-miniconda + with: + python-version: 3.9 + + - name: Install dependencies + shell: arch -arch arm64 bash {0} + run: | + ${CONDA_RUN} python -m pip install --upgrade pip uv + ${CONDA_RUN} python -m uv pip install -e ".[quality,test]" + ${CONDA_RUN} python -m uv pip install torch torchvision torchaudio + ${CONDA_RUN} python -m uv pip install accelerate@git+https://github.com/huggingface/accelerate.git + ${CONDA_RUN} python -m uv pip install transformers --upgrade + + - name: Environment + shell: arch -arch arm64 bash {0} + run: | + ${CONDA_RUN} python utils/print_env.py + + - name: Run fast PyTorch tests on M1 (MPS) + shell: arch -arch arm64 bash {0} + env: + HF_HOME: /System/Volumes/Data/mnt/cache + HF_TOKEN: ${{ secrets.HF_TOKEN }} + run: | + ${CONDA_RUN} python -m pytest -n 0 --make-reports=tests_torch_mps tests/ + + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_torch_mps_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pr_torch_mps_test_reports + path: reports diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pypi_publish.yaml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pypi_publish.yaml new file mode 100644 index 0000000000000000000000000000000000000000..dc36b6b024c57f29de77e0ef22a148e4bc269dd6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/pypi_publish.yaml @@ -0,0 +1,81 @@ +# Adapted from https://blog.deepjyoti30.dev/pypi-release-github-action + +name: PyPI release + +on: + workflow_dispatch: + push: + tags: + - "*" + +jobs: + find-and-checkout-latest-branch: + runs-on: ubuntu-22.04 + outputs: + latest_branch: ${{ steps.set_latest_branch.outputs.latest_branch }} + steps: + - name: Checkout Repo + uses: actions/checkout@v3 + + - name: Set up Python + uses: actions/setup-python@v4 + with: + python-version: '3.8' + + - name: Fetch latest branch + id: fetch_latest_branch + run: | + pip install -U requests packaging + LATEST_BRANCH=$(python utils/fetch_latest_release_branch.py) + echo "Latest branch: $LATEST_BRANCH" + echo "latest_branch=$LATEST_BRANCH" >> $GITHUB_ENV + + - name: Set latest branch output + id: set_latest_branch + run: echo "::set-output name=latest_branch::${{ env.latest_branch }}" + + release: + needs: find-and-checkout-latest-branch + runs-on: ubuntu-22.04 + + steps: + - name: Checkout Repo + uses: actions/checkout@v3 + with: + ref: ${{ needs.find-and-checkout-latest-branch.outputs.latest_branch }} + + - name: Setup Python + uses: actions/setup-python@v4 + with: + python-version: "3.8" + + - name: Install dependencies + run: | + python -m pip install --upgrade pip + pip install -U setuptools wheel twine + pip install -U torch --index-url https://download.pytorch.org/whl/cpu + pip install -U transformers + + - name: Build the dist files + run: python setup.py bdist_wheel && python setup.py sdist + + - name: Publish to the test PyPI + env: + TWINE_USERNAME: ${{ secrets.TEST_PYPI_USERNAME }} + TWINE_PASSWORD: ${{ secrets.TEST_PYPI_PASSWORD }} + run: twine upload dist/* -r pypitest --repository-url=https://test.pypi.org/legacy/ + + - name: Test installing diffusers and importing + run: | + pip install diffusers && pip uninstall diffusers -y + pip install -i https://test.pypi.org/simple/ diffusers + python -c "from diffusers import __version__; print(__version__)" + python -c "from diffusers import DiffusionPipeline; pipe = DiffusionPipeline.from_pretrained('fusing/unet-ldm-dummy-update'); pipe()" + python -c "from diffusers import DiffusionPipeline; pipe = DiffusionPipeline.from_pretrained('hf-internal-testing/tiny-stable-diffusion-pipe', safety_checker=None); pipe('ah suh du')" + python -c "from diffusers import *" + + - name: Publish to PyPI + env: + TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }} + TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }} + run: twine upload dist/* -r pypi diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/release_tests_fast.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/release_tests_fast.yml new file mode 100644 index 0000000000000000000000000000000000000000..efdd6ea2b651128148caa7e90c1bf496c1d0a8e2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/release_tests_fast.yml @@ -0,0 +1,342 @@ +# Duplicate workflow to push_tests.yml that is meant to run on release/patch branches as a final check +# Creating a duplicate workflow here is simpler than adding complex path/branch parsing logic to push_tests.yml +# Needs to be updated if push_tests.yml updated +name: (Release) Fast GPU Tests on main + +on: + push: + branches: + - "v*.*.*-release" + - "v*.*.*-patch" + +env: + DIFFUSERS_IS_CI: yes + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + PYTEST_TIMEOUT: 600 + PIPELINE_USAGE_CUTOFF: 50000 + +jobs: + setup_torch_cuda_pipeline_matrix: + name: Setup Torch Pipelines CUDA Slow Tests Matrix + runs-on: + group: aws-general-8-plus + container: + image: diffusers/diffusers-pytorch-cpu + outputs: + pipeline_test_matrix: ${{ steps.fetch_pipeline_matrix.outputs.pipeline_test_matrix }} + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + - name: Environment + run: | + python utils/print_env.py + - name: Fetch Pipeline Matrix + id: fetch_pipeline_matrix + run: | + matrix=$(python utils/fetch_torch_cuda_pipeline_test_matrix.py) + echo $matrix + echo "pipeline_test_matrix=$matrix" >> $GITHUB_OUTPUT + - name: Pipeline Tests Artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: test-pipelines.json + path: reports + + torch_pipelines_cuda_tests: + name: Torch Pipelines CUDA Tests + needs: setup_torch_cuda_pipeline_matrix + strategy: + fail-fast: false + max-parallel: 8 + matrix: + module: ${{ fromJson(needs.setup_torch_cuda_pipeline_matrix.outputs.pipeline_test_matrix) }} + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + - name: Environment + run: | + python utils/print_env.py + - name: Slow PyTorch CUDA checkpoint tests on Ubuntu + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_pipeline_${{ matrix.module }}_cuda \ + tests/pipelines/${{ matrix.module }} + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_pipeline_${{ matrix.module }}_cuda_stats.txt + cat reports/tests_pipeline_${{ matrix.module }}_cuda_failures_short.txt + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: pipeline_${{ matrix.module }}_test_reports + path: reports + + torch_cuda_tests: + name: Torch CUDA Tests + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-cuda + options: --shm-size "16gb" --ipc host --gpus all + defaults: + run: + shell: bash + strategy: + fail-fast: false + max-parallel: 2 + matrix: + module: [models, schedulers, lora, others, single_file] + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install peft@git+https://github.com/huggingface/peft.git + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + + - name: Environment + run: | + python utils/print_env.py + + - name: Run PyTorch CUDA tests + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_torch_${{ matrix.module }}_cuda \ + tests/${{ matrix.module }} + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_torch_${{ matrix.module }}_cuda_stats.txt + cat reports/tests_torch_${{ matrix.module }}_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_cuda_${{ matrix.module }}_test_reports + path: reports + + torch_minimum_version_cuda_tests: + name: Torch Minimum Version CUDA Tests + runs-on: + group: aws-g4dn-2xlarge + container: + image: diffusers/diffusers-pytorch-minimum-cuda + options: --shm-size "16gb" --ipc host --gpus all + defaults: + run: + shell: bash + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Install dependencies + run: | + uv pip install -e ".[quality]" + uv pip install peft@git+https://github.com/huggingface/peft.git + uv pip uninstall accelerate && uv pip install -U accelerate@git+https://github.com/huggingface/accelerate.git + + - name: Environment + run: | + python utils/print_env.py + + - name: Run PyTorch CUDA tests + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + # https://pytorch.org/docs/stable/notes/randomness.html#avoiding-nondeterministic-algorithms + CUBLAS_WORKSPACE_CONFIG: :16:8 + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile \ + -k "not Flax and not Onnx" \ + --make-reports=tests_torch_minimum_cuda \ + tests/models/test_modeling_common.py \ + tests/pipelines/test_pipelines_common.py \ + tests/pipelines/test_pipeline_utils.py \ + tests/pipelines/test_pipelines.py \ + tests/pipelines/test_pipelines_auto.py \ + tests/schedulers/test_schedulers.py \ + tests/others + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/tests_torch_minimum_version_cuda_stats.txt + cat reports/tests_torch_minimum_version_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_minimum_version_cuda_test_reports + path: reports + + run_torch_compile_tests: + name: PyTorch Compile CUDA tests + + runs-on: + group: aws-g4dn-2xlarge + + container: + image: diffusers/diffusers-pytorch-cuda + options: --gpus all --shm-size "16gb" --ipc host + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality,training]" + - name: Environment + run: | + python utils/print_env.py + - name: Run torch compile tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + RUN_COMPILE: yes + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile -k "compile" --make-reports=tests_torch_compile_cuda tests/ + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_torch_compile_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_compile_test_reports + path: reports + + run_xformers_tests: + name: PyTorch xformers CUDA tests + + runs-on: + group: aws-g4dn-2xlarge + + container: + image: diffusers/diffusers-pytorch-xformers-cuda + options: --gpus all --shm-size "16gb" --ipc host + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + - name: Install dependencies + run: | + uv pip install -e ".[quality,training]" + - name: Environment + run: | + python utils/print_env.py + - name: Run example tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + run: | + pytest -n 1 --max-worker-restart=0 --dist=loadfile -k "xformers" --make-reports=tests_torch_xformers_cuda tests/ + - name: Failure short reports + if: ${{ failure() }} + run: cat reports/tests_torch_xformers_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: torch_xformers_test_reports + path: reports + + run_examples_tests: + name: Examples PyTorch CUDA tests on Ubuntu + + runs-on: + group: aws-g4dn-2xlarge + + container: + image: diffusers/diffusers-pytorch-cuda + options: --gpus all --shm-size "16gb" --ipc host + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + + - name: Install dependencies + run: | + uv pip install -e ".[quality,training]" + + - name: Environment + run: | + python utils/print_env.py + + - name: Run example tests on GPU + env: + HF_TOKEN: ${{ secrets.DIFFUSERS_HF_HUB_READ_TOKEN }} + run: | + uv pip install ".[training]" + pytest -n 1 --max-worker-restart=0 --dist=loadfile --make-reports=examples_torch_cuda examples/ + + - name: Failure short reports + if: ${{ failure() }} + run: | + cat reports/examples_torch_cuda_stats.txt + cat reports/examples_torch_cuda_failures_short.txt + + - name: Test suite reports artifacts + if: ${{ always() }} + uses: actions/upload-artifact@v4 + with: + name: examples_test_reports + path: reports diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/run_tests_from_a_pr.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/run_tests_from_a_pr.yml new file mode 100644 index 0000000000000000000000000000000000000000..fa8c579dd768b789debaac95b9d9a7141efc7479 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/run_tests_from_a_pr.yml @@ -0,0 +1,73 @@ +name: Check running SLOW tests from a PR (only GPU) + +on: + workflow_dispatch: + inputs: + docker_image: + default: 'diffusers/diffusers-pytorch-cuda' + description: 'Name of the Docker image' + required: true + pr_number: + description: 'PR number to test on' + required: true + test: + description: 'Tests to run (e.g.: `tests/models`).' + required: true + +env: + DIFFUSERS_IS_CI: yes + IS_GITHUB_CI: "1" + HF_HOME: /mnt/cache + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + PYTEST_TIMEOUT: 600 + RUN_SLOW: yes + +jobs: + run_tests: + name: "Run a test on our runner from a PR" + runs-on: + group: aws-g4dn-2xlarge + container: + image: ${{ github.event.inputs.docker_image }} + options: --gpus all --privileged --ipc host -v /mnt/cache/.cache/huggingface:/mnt/cache/ + + steps: + - name: Validate test files input + id: validate_test_files + env: + PY_TEST: ${{ github.event.inputs.test }} + run: | + if [[ ! "$PY_TEST" =~ ^tests/ ]]; then + echo "Error: The input string must start with 'tests/'." + exit 1 + fi + + if [[ ! "$PY_TEST" =~ ^tests/(models|pipelines|lora) ]]; then + echo "Error: The input string must contain either 'models', 'pipelines', or 'lora' after 'tests/'." + exit 1 + fi + + if [[ "$PY_TEST" == *";"* ]]; then + echo "Error: The input string must not contain ';'." + exit 1 + fi + echo "$PY_TEST" + + shell: bash -e {0} + + - name: Checkout PR branch + uses: actions/checkout@v4 + with: + ref: refs/pull/${{ inputs.pr_number }}/head + + - name: Install pytest + run: | + uv pip install -e ".[quality]" + uv pip install peft + + - name: Run tests + env: + PY_TEST: ${{ github.event.inputs.test }} + run: | + pytest "$PY_TEST" diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/ssh-pr-runner.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/ssh-pr-runner.yml new file mode 100644 index 0000000000000000000000000000000000000000..49fa9c0ad24d65634a891496ac93bc93e9e24378 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/ssh-pr-runner.yml @@ -0,0 +1,40 @@ +name: SSH into PR runners + +on: + workflow_dispatch: + inputs: + docker_image: + description: 'Name of the Docker image' + required: true + +env: + IS_GITHUB_CI: "1" + HF_HUB_READ_TOKEN: ${{ secrets.HF_HUB_READ_TOKEN }} + HF_HOME: /mnt/cache + DIFFUSERS_IS_CI: yes + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + RUN_SLOW: yes + +jobs: + ssh_runner: + name: "SSH" + runs-on: + group: aws-highmemory-32-plus + container: + image: ${{ github.event.inputs.docker_image }} + options: --shm-size "16gb" --ipc host -v /mnt/cache/.cache/huggingface/diffusers:/mnt/cache/ --privileged + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: Tailscale # In order to be able to SSH when a test fails + uses: huggingface/tailscale-action@main + with: + authkey: ${{ secrets.TAILSCALE_SSH_AUTHKEY }} + slackChannel: ${{ secrets.SLACK_CIFEEDBACK_CHANNEL }} + slackToken: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }} + waitForSSH: true diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/ssh-runner.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/ssh-runner.yml new file mode 100644 index 0000000000000000000000000000000000000000..917eb5b1b31acb9c05898ce4aad69243f1c3795c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/ssh-runner.yml @@ -0,0 +1,52 @@ +name: SSH into GPU runners + +on: + workflow_dispatch: + inputs: + runner_type: + description: 'Type of runner to test (aws-g6-4xlarge-plus: a10, aws-g4dn-2xlarge: t4, aws-g6e-xlarge-plus: L40)' + type: choice + required: true + options: + - aws-g6-4xlarge-plus + - aws-g4dn-2xlarge + - aws-g6e-xlarge-plus + docker_image: + description: 'Name of the Docker image' + required: true + +env: + IS_GITHUB_CI: "1" + HF_HUB_READ_TOKEN: ${{ secrets.HF_HUB_READ_TOKEN }} + HF_HOME: /mnt/cache + DIFFUSERS_IS_CI: yes + OMP_NUM_THREADS: 8 + MKL_NUM_THREADS: 8 + RUN_SLOW: yes + +jobs: + ssh_runner: + name: "SSH" + runs-on: + group: "${{ github.event.inputs.runner_type }}" + container: + image: ${{ github.event.inputs.docker_image }} + options: --shm-size "16gb" --ipc host -v /mnt/cache/.cache/huggingface/diffusers:/mnt/cache/ --gpus all --privileged + + steps: + - name: Checkout diffusers + uses: actions/checkout@v3 + with: + fetch-depth: 2 + + - name: NVIDIA-SMI + run: | + nvidia-smi + + - name: Tailscale # In order to be able to SSH when a test fails + uses: huggingface/tailscale-action@main + with: + authkey: ${{ secrets.TAILSCALE_SSH_AUTHKEY }} + slackChannel: ${{ secrets.SLACK_CIFEEDBACK_CHANNEL }} + slackToken: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }} + waitForSSH: true diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/stale.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/stale.yml new file mode 100644 index 0000000000000000000000000000000000000000..27450ed4c7f20d4534b4c4597ca019267e12dd81 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/stale.yml @@ -0,0 +1,30 @@ +name: Stale Bot + +on: + schedule: + - cron: "0 15 * * *" + +jobs: + close_stale_issues: + name: Close Stale Issues + if: github.repository == 'huggingface/diffusers' + runs-on: ubuntu-22.04 + permissions: + issues: write + pull-requests: write + env: + GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} + steps: + - uses: actions/checkout@v2 + + - name: Setup Python + uses: actions/setup-python@v1 + with: + python-version: 3.8 + + - name: Install requirements + run: | + pip install PyGithub + - name: Close stale issues + run: | + python utils/stale.py diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/trufflehog.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/trufflehog.yml new file mode 100644 index 0000000000000000000000000000000000000000..4743dc35245533652c81a3c1ac0d5fb1bca92bc1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/trufflehog.yml @@ -0,0 +1,18 @@ +on: + push: + +name: Secret Leaks + +jobs: + trufflehog: + runs-on: ubuntu-22.04 + steps: + - name: Checkout code + uses: actions/checkout@v4 + with: + fetch-depth: 0 + - name: Secret Scanning + uses: trufflesecurity/trufflehog@main + with: + extra_args: --results=verified,unknown + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/typos.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/typos.yml new file mode 100644 index 0000000000000000000000000000000000000000..6d2f2fc8dd9a69a626bd9852e2add65cb32dfdc9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/typos.yml @@ -0,0 +1,14 @@ +name: Check typos + +on: + workflow_dispatch: + +jobs: + build: + runs-on: ubuntu-22.04 + + steps: + - uses: actions/checkout@v3 + + - name: typos-action + uses: crate-ci/typos@v1.12.4 diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/update_metadata.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/update_metadata.yml new file mode 100644 index 0000000000000000000000000000000000000000..92aea0369ba855237b39d4dee9e8daee0c81010d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/update_metadata.yml @@ -0,0 +1,30 @@ +name: Update Diffusers metadata + +on: + workflow_dispatch: + push: + branches: + - main + - update_diffusers_metadata* + +jobs: + update_metadata: + runs-on: ubuntu-22.04 + defaults: + run: + shell: bash -l {0} + + steps: + - uses: actions/checkout@v3 + + - name: Setup environment + run: | + pip install --upgrade pip + pip install datasets pandas + pip install .[torch] + + - name: Update metadata + env: + HF_TOKEN: ${{ secrets.SAYAK_HF_TOKEN }} + run: | + python utils/update_metadata.py --commit_sha ${{ github.sha }} diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/upload_pr_documentation.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/upload_pr_documentation.yml new file mode 100644 index 0000000000000000000000000000000000000000..fc102df8103e48fb139a8bd47be05fc257d992c5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.github/workflows/upload_pr_documentation.yml @@ -0,0 +1,16 @@ +name: Upload PR Documentation + +on: + workflow_run: + workflows: ["Build PR Documentation"] + types: + - completed + +jobs: + build: + uses: huggingface/doc-builder/.github/workflows/upload_pr_documentation.yml@main + with: + package_name: diffusers + secrets: + hf_token: ${{ secrets.HF_DOC_BUILD_PUSH }} + comment_bot_token: ${{ secrets.COMMENT_BOT_TOKEN }} diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/.gitignore b/tasks/tasksmith-1c5704b1f07f/tests/source/.gitignore new file mode 100644 index 0000000000000000000000000000000000000000..a55026febd5ada75a9b6eaa2a26c2105d00aebaa --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/.gitignore @@ -0,0 +1,181 @@ +# Initially taken from GitHub's Python gitignore file + +# Byte-compiled / optimized / DLL files +__pycache__/ +*.py[cod] +*$py.class + +# C extensions +*.so + +# tests and logs +tests/fixtures/cached_*_text.txt +logs/ +lightning_logs/ +lang_code_data/ + +# Distribution / packaging +.Python +build/ +develop-eggs/ +dist/ +downloads/ +eggs/ +.eggs/ +lib/ +lib64/ +parts/ +sdist/ +var/ +wheels/ +*.egg-info/ +.installed.cfg +*.egg +MANIFEST + +# PyInstaller +# Usually these files are written by a Python script from a template +# before PyInstaller builds the exe, so as to inject date/other infos into it. +*.manifest +*.spec + +# Installer logs +pip-log.txt +pip-delete-this-directory.txt + +# Unit test / coverage reports +htmlcov/ +.tox/ +.nox/ +.coverage +.coverage.* +.cache +nosetests.xml +coverage.xml +*.cover +.hypothesis/ +.pytest_cache/ + +# Translations +*.mo +*.pot + +# Django stuff: +*.log +local_settings.py +db.sqlite3 + +# Flask stuff: +instance/ +.webassets-cache + +# Scrapy stuff: +.scrapy + +# Sphinx documentation +docs/_build/ + +# PyBuilder +target/ + +# Jupyter Notebook +.ipynb_checkpoints + +# IPython +profile_default/ +ipython_config.py + +# pyenv +.python-version + +# celery beat schedule file +celerybeat-schedule + +# SageMath parsed files +*.sage.py + +# Environments +.env +.venv +env/ +venv/ +ENV/ +env.bak/ +venv.bak/ + +# Spyder project settings +.spyderproject +.spyproject + +# Rope project settings +.ropeproject + +# mkdocs documentation +/site + +# mypy +.mypy_cache/ +.dmypy.json +dmypy.json + +# Pyre type checker +.pyre/ + +# vscode +.vs +.vscode + +# Cursor +.cursor + +# Pycharm +.idea + +# TF code +tensorflow_code + +# Models +proc_data + +# examples +runs +/runs_old +/wandb +/examples/runs +/examples/**/*.args +/examples/rag/sweep + +# data +/data +serialization_dir + +# emacs +*.*~ +debug.env + +# vim +.*.swp + +# ctags +tags + +# pre-commit +.pre-commit* + +# .lock +*.lock + +# DS_Store (MacOS) +.DS_Store + +# RL pipelines may produce mp4 outputs +*.mp4 + +# dependencies +/transformers + +# ruff +.ruff_cache + +# wandb +wandb \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/CITATION.cff b/tasks/tasksmith-1c5704b1f07f/tests/source/CITATION.cff new file mode 100644 index 0000000000000000000000000000000000000000..09fc6c744d06407fa6b4707af1afe3cc9529b4db --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/CITATION.cff @@ -0,0 +1,52 @@ +cff-version: 1.2.0 +title: 'Diffusers: State-of-the-art diffusion models' +message: >- + If you use this software, please cite it using the + metadata from this file. +type: software +authors: + - given-names: Patrick + family-names: von Platen + - given-names: Suraj + family-names: Patil + - given-names: Anton + family-names: Lozhkov + - given-names: Pedro + family-names: Cuenca + - given-names: Nathan + family-names: Lambert + - given-names: Kashif + family-names: Rasul + - given-names: Mishig + family-names: Davaadorj + - given-names: Dhruv + family-names: Nair + - given-names: Sayak + family-names: Paul + - given-names: Steven + family-names: Liu + - given-names: William + family-names: Berman + - given-names: Yiyi + family-names: Xu + - given-names: Thomas + family-names: Wolf +repository-code: 'https://github.com/huggingface/diffusers' +abstract: >- + Diffusers provides pretrained diffusion models across + multiple modalities, such as vision and audio, and serves + as a modular toolbox for inference and training of + diffusion models. +keywords: + - deep-learning + - pytorch + - image-generation + - hacktoberfest + - diffusion + - text2image + - image2image + - score-based-generative-modeling + - stable-diffusion + - stable-diffusion-diffusers +license: Apache-2.0 +version: 0.12.1 diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/CODE_OF_CONDUCT.md b/tasks/tasksmith-1c5704b1f07f/tests/source/CODE_OF_CONDUCT.md new file mode 100644 index 0000000000000000000000000000000000000000..2139079964fbd53692380985e60ef90e2fa05dad --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/CODE_OF_CONDUCT.md @@ -0,0 +1,130 @@ + +# Contributor Covenant Code of Conduct + +## Our Pledge + +We as members, contributors, and leaders pledge to make participation in our +community a harassment-free experience for everyone, regardless of age, body +size, visible or invisible disability, ethnicity, sex characteristics, gender +identity and expression, level of experience, education, socio-economic status, +nationality, personal appearance, race, caste, color, religion, or sexual identity +and orientation. + +We pledge to act and interact in ways that contribute to an open, welcoming, +diverse, inclusive, and healthy community. + +## Our Standards + +Examples of behavior that contributes to a positive environment for our +community include: + +* Demonstrating empathy and kindness toward other people +* Being respectful of differing opinions, viewpoints, and experiences +* Giving and gracefully accepting constructive feedback +* Accepting responsibility and apologizing to those affected by our mistakes, + and learning from the experience +* Focusing on what is best not just for us as individuals, but for the + overall Diffusers community + +Examples of unacceptable behavior include: + +* The use of sexualized language or imagery, and sexual attention or + advances of any kind +* Trolling, insulting or derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others' private information, such as a physical or email + address, without their explicit permission +* Spamming issues or PRs with links to projects unrelated to this library +* Other conduct which could reasonably be considered inappropriate in a + professional setting + +## Enforcement Responsibilities + +Community leaders are responsible for clarifying and enforcing our standards of +acceptable behavior and will take appropriate and fair corrective action in +response to any behavior that they deem inappropriate, threatening, offensive, +or harmful. + +Community leaders have the right and responsibility to remove, edit, or reject +comments, commits, code, wiki edits, issues, and other contributions that are +not aligned to this Code of Conduct, and will communicate reasons for moderation +decisions when appropriate. + +## Scope + +This Code of Conduct applies within all community spaces, and also applies when +an individual is officially representing the community in public spaces. +Examples of representing our community include using an official e-mail address, +posting via an official social media account, or acting as an appointed +representative at an online or offline event. + +## Enforcement + +Instances of abusive, harassing, or otherwise unacceptable behavior may be +reported to the community leaders responsible for enforcement at +feedback@huggingface.co. +All complaints will be reviewed and investigated promptly and fairly. + +All community leaders are obligated to respect the privacy and security of the +reporter of any incident. + +## Enforcement Guidelines + +Community leaders will follow these Community Impact Guidelines in determining +the consequences for any action they deem in violation of this Code of Conduct: + +### 1. Correction + +**Community Impact**: Use of inappropriate language or other behavior deemed +unprofessional or unwelcome in the community. + +**Consequence**: A private, written warning from community leaders, providing +clarity around the nature of the violation and an explanation of why the +behavior was inappropriate. A public apology may be requested. + +### 2. Warning + +**Community Impact**: A violation through a single incident or series +of actions. + +**Consequence**: A warning with consequences for continued behavior. No +interaction with the people involved, including unsolicited interaction with +those enforcing the Code of Conduct, for a specified period of time. This +includes avoiding interactions in community spaces as well as external channels +like social media. Violating these terms may lead to a temporary or +permanent ban. + +### 3. Temporary Ban + +**Community Impact**: A serious violation of community standards, including +sustained inappropriate behavior. + +**Consequence**: A temporary ban from any sort of interaction or public +communication with the community for a specified period of time. No public or +private interaction with the people involved, including unsolicited interaction +with those enforcing the Code of Conduct, is allowed during this period. +Violating these terms may lead to a permanent ban. + +### 4. Permanent Ban + +**Community Impact**: Demonstrating a pattern of violation of community +standards, including sustained inappropriate behavior, harassment of an +individual, or aggression toward or disparagement of classes of individuals. + +**Consequence**: A permanent ban from any sort of public interaction within +the community. + +## Attribution + +This Code of Conduct is adapted from the [Contributor Covenant][homepage], +version 2.1, available at +https://www.contributor-covenant.org/version/2/1/code_of_conduct.html. + +Community Impact Guidelines were inspired by [Mozilla's code of conduct +enforcement ladder](https://github.com/mozilla/diversity). + +[homepage]: https://www.contributor-covenant.org + +For answers to common questions about this code of conduct, see the FAQ at +https://www.contributor-covenant.org/faq. Translations are available at +https://www.contributor-covenant.org/translations. diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/CONTRIBUTING.md b/tasks/tasksmith-1c5704b1f07f/tests/source/CONTRIBUTING.md new file mode 100644 index 0000000000000000000000000000000000000000..ec18df88264121675cb0ba0fe04083be5dd326ab --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/CONTRIBUTING.md @@ -0,0 +1,506 @@ + + +# How to contribute to Diffusers 🧨 + +We ❤️ contributions from the open-source community! Everyone is welcome, and all types of participation –not just code– are valued and appreciated. Answering questions, helping others, reaching out, and improving the documentation are all immensely valuable to the community, so don't be afraid and get involved if you're up for it! + +Everyone is encouraged to start by saying 👋 in our public Discord channel. We discuss the latest trends in diffusion models, ask questions, show off personal projects, help each other with contributions, or just hang out ☕. Join us on Discord + +Whichever way you choose to contribute, we strive to be part of an open, welcoming, and kind community. Please, read our [code of conduct](https://github.com/huggingface/diffusers/blob/main/CODE_OF_CONDUCT.md) and be mindful to respect it during your interactions. We also recommend you become familiar with the [ethical guidelines](https://huggingface.co/docs/diffusers/conceptual/ethical_guidelines) that guide our project and ask you to adhere to the same principles of transparency and responsibility. + +We enormously value feedback from the community, so please do not be afraid to speak up if you believe you have valuable feedback that can help improve the library - every message, comment, issue, and pull request (PR) is read and considered. + +## Overview + +You can contribute in many ways ranging from answering questions on issues to adding new diffusion models to +the core library. + +In the following, we give an overview of different ways to contribute, ranked by difficulty in ascending order. All of them are valuable to the community. + +* 1. Asking and answering questions on [the Diffusers discussion forum](https://discuss.huggingface.co/c/discussion-related-to-httpsgithubcomhuggingfacediffusers) or on [Discord](https://discord.gg/G7tWnz98XR). +* 2. Opening new issues on [the GitHub Issues tab](https://github.com/huggingface/diffusers/issues/new/choose). +* 3. Answering issues on [the GitHub Issues tab](https://github.com/huggingface/diffusers/issues). +* 4. Fix a simple issue, marked by the "Good first issue" label, see [here](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22). +* 5. Contribute to the [documentation](https://github.com/huggingface/diffusers/tree/main/docs/source). +* 6. Contribute a [Community Pipeline](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3Acommunity-examples). +* 7. Contribute to the [examples](https://github.com/huggingface/diffusers/tree/main/examples). +* 8. Fix a more difficult issue, marked by the "Good second issue" label, see [here](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22Good+second+issue%22). +* 9. Add a new pipeline, model, or scheduler, see ["New Pipeline/Model"](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22New+pipeline%2Fmodel%22) and ["New scheduler"](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22New+scheduler%22) issues. For this contribution, please have a look at [Design Philosophy](https://github.com/huggingface/diffusers/blob/main/PHILOSOPHY.md). + +As said before, **all contributions are valuable to the community**. +In the following, we will explain each contribution a bit more in detail. + +For all contributions 4-9, you will need to open a PR. It is explained in detail how to do so in [Opening a pull request](#how-to-open-a-pr). + +### 1. Asking and answering questions on the Diffusers discussion forum or on the Diffusers Discord + +Any question or comment related to the Diffusers library can be asked on the [discussion forum](https://discuss.huggingface.co/c/discussion-related-to-httpsgithubcomhuggingfacediffusers/) or on [Discord](https://discord.gg/G7tWnz98XR). Such questions and comments include (but are not limited to): +- Reports of training or inference experiments in an attempt to share knowledge +- Presentation of personal projects +- Questions to non-official training examples +- Project proposals +- General feedback +- Paper summaries +- Asking for help on personal projects that build on top of the Diffusers library +- General questions +- Ethical questions regarding diffusion models +- ... + +Every question that is asked on the forum or on Discord actively encourages the community to publicly +share knowledge and might very well help a beginner in the future who has the same question you're +having. Please do pose any questions you might have. +In the same spirit, you are of immense help to the community by answering such questions because this way you are publicly documenting knowledge for everybody to learn from. + +**Please** keep in mind that the more effort you put into asking or answering a question, the higher +the quality of the publicly documented knowledge. In the same way, well-posed and well-answered questions create a high-quality knowledge database accessible to everybody, while badly posed questions or answers reduce the overall quality of the public knowledge database. +In short, a high quality question or answer is *precise*, *concise*, *relevant*, *easy-to-understand*, *accessible*, and *well-formatted/well-posed*. For more information, please have a look through the [How to write a good issue](#how-to-write-a-good-issue) section. + +**NOTE about channels**: +[*The forum*](https://discuss.huggingface.co/c/discussion-related-to-httpsgithubcomhuggingfacediffusers/63) is much better indexed by search engines, such as Google. Posts are ranked by popularity rather than chronologically. Hence, it's easier to look up questions and answers that we posted some time ago. +In addition, questions and answers posted in the forum can easily be linked to. +In contrast, *Discord* has a chat-like format that invites fast back-and-forth communication. +While it will most likely take less time for you to get an answer to your question on Discord, your +question won't be visible anymore over time. Also, it's much harder to find information that was posted a while back on Discord. We therefore strongly recommend using the forum for high-quality questions and answers in an attempt to create long-lasting knowledge for the community. If discussions on Discord lead to very interesting answers and conclusions, we recommend posting the results on the forum to make the information more available for future readers. + +### 2. Opening new issues on the GitHub issues tab + +The 🧨 Diffusers library is robust and reliable thanks to the users who notify us of +the problems they encounter. So thank you for reporting an issue. + +Remember, GitHub issues are reserved for technical questions directly related to the Diffusers library, bug reports, feature requests, or feedback on the library design. + +In a nutshell, this means that everything that is **not** related to the **code of the Diffusers library** (including the documentation) should **not** be asked on GitHub, but rather on either the [forum](https://discuss.huggingface.co/c/discussion-related-to-httpsgithubcomhuggingfacediffusers/63) or [Discord](https://discord.gg/G7tWnz98XR). + +**Please consider the following guidelines when opening a new issue**: +- Make sure you have searched whether your issue has already been asked before (use the search bar on GitHub under Issues). +- Please never report a new issue on another (related) issue. If another issue is highly related, please +open a new issue nevertheless and link to the related issue. +- Make sure your issue is written in English. Please use one of the great, free online translation services, such as [DeepL](https://www.deepl.com/translator) to translate from your native language to English if you are not comfortable in English. +- Check whether your issue might be solved by updating to the newest Diffusers version. Before posting your issue, please make sure that `python -c "import diffusers; print(diffusers.__version__)"` is higher or matches the latest Diffusers version. +- Remember that the more effort you put into opening a new issue, the higher the quality of your answer will be and the better the overall quality of the Diffusers issues. + +New issues usually include the following. + +#### 2.1. Reproducible, minimal bug reports + +A bug report should always have a reproducible code snippet and be as minimal and concise as possible. +This means in more detail: +- Narrow the bug down as much as you can, **do not just dump your whole code file**. +- Format your code. +- Do not include any external libraries except for Diffusers depending on them. +- **Always** provide all necessary information about your environment; for this, you can run: `diffusers-cli env` in your shell and copy-paste the displayed information to the issue. +- Explain the issue. If the reader doesn't know what the issue is and why it is an issue, she cannot solve it. +- **Always** make sure the reader can reproduce your issue with as little effort as possible. If your code snippet cannot be run because of missing libraries or undefined variables, the reader cannot help you. Make sure your reproducible code snippet is as minimal as possible and can be copy-pasted into a simple Python shell. +- If in order to reproduce your issue a model and/or dataset is required, make sure the reader has access to that model or dataset. You can always upload your model or dataset to the [Hub](https://huggingface.co) to make it easily downloadable. Try to keep your model and dataset as small as possible, to make the reproduction of your issue as effortless as possible. + +For more information, please have a look through the [How to write a good issue](#how-to-write-a-good-issue) section. + +You can open a bug report [here](https://github.com/huggingface/diffusers/issues/new?assignees=&labels=bug&projects=&template=bug-report.yml). + +#### 2.2. Feature requests + +A world-class feature request addresses the following points: + +1. Motivation first: +* Is it related to a problem/frustration with the library? If so, please explain +why. Providing a code snippet that demonstrates the problem is best. +* Is it related to something you would need for a project? We'd love to hear +about it! +* Is it something you worked on and think could benefit the community? +Awesome! Tell us what problem it solved for you. +2. Write a *full paragraph* describing the feature; +3. Provide a **code snippet** that demonstrates its future use; +4. In case this is related to a paper, please attach a link; +5. Attach any additional information (drawings, screenshots, etc.) you think may help. + +You can open a feature request [here](https://github.com/huggingface/diffusers/issues/new?assignees=&labels=&template=feature_request.md&title=). + +#### 2.3 Feedback + +Feedback about the library design and why it is good or not good helps the core maintainers immensely to build a user-friendly library. To understand the philosophy behind the current design philosophy, please have a look [here](https://huggingface.co/docs/diffusers/conceptual/philosophy). If you feel like a certain design choice does not fit with the current design philosophy, please explain why and how it should be changed. If a certain design choice follows the design philosophy too much, hence restricting use cases, explain why and how it should be changed. +If a certain design choice is very useful for you, please also leave a note as this is great feedback for future design decisions. + +You can open an issue about feedback [here](https://github.com/huggingface/diffusers/issues/new?assignees=&labels=&template=feedback.md&title=). + +#### 2.4 Technical questions + +Technical questions are mainly about why certain code of the library was written in a certain way, or what a certain part of the code does. Please make sure to link to the code in question and please provide detail on +why this part of the code is difficult to understand. + +You can open an issue about a technical question [here](https://github.com/huggingface/diffusers/issues/new?assignees=&labels=bug&template=bug-report.yml). + +#### 2.5 Proposal to add a new model, scheduler, or pipeline + +If the diffusion model community released a new model, pipeline, or scheduler that you would like to see in the Diffusers library, please provide the following information: + +* Short description of the diffusion pipeline, model, or scheduler and link to the paper or public release. +* Link to any of its open-source implementation. +* Link to the model weights if they are available. + +If you are willing to contribute to the model yourself, let us know so we can best guide you. Also, don't forget +to tag the original author of the component (model, scheduler, pipeline, etc.) by GitHub handle if you can find it. + +You can open a request for a model/pipeline/scheduler [here](https://github.com/huggingface/diffusers/issues/new?assignees=&labels=New+model%2Fpipeline%2Fscheduler&template=new-model-addition.yml). + +### 3. Answering issues on the GitHub issues tab + +Answering issues on GitHub might require some technical knowledge of Diffusers, but we encourage everybody to give it a try even if you are not 100% certain that your answer is correct. +Some tips to give a high-quality answer to an issue: +- Be as concise and minimal as possible. +- Stay on topic. An answer to the issue should concern the issue and only the issue. +- Provide links to code, papers, or other sources that prove or encourage your point. +- Answer in code. If a simple code snippet is the answer to the issue or shows how the issue can be solved, please provide a fully reproducible code snippet. + +Also, many issues tend to be simply off-topic, duplicates of other issues, or irrelevant. It is of great +help to the maintainers if you can answer such issues, encouraging the author of the issue to be +more precise, provide the link to a duplicated issue or redirect them to [the forum](https://discuss.huggingface.co/c/discussion-related-to-httpsgithubcomhuggingfacediffusers/63) or [Discord](https://discord.gg/G7tWnz98XR). + +If you have verified that the issued bug report is correct and requires a correction in the source code, +please have a look at the next sections. + +For all of the following contributions, you will need to open a PR. It is explained in detail how to do so in the [Opening a pull request](#how-to-open-a-pr) section. + +### 4. Fixing a "Good first issue" + +*Good first issues* are marked by the [Good first issue](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22) label. Usually, the issue already +explains how a potential solution should look so that it is easier to fix. +If the issue hasn't been closed and you would like to try to fix this issue, you can just leave a message "I would like to try this issue.". There are usually three scenarios: +- a.) The issue description already proposes a fix. In this case and if the solution makes sense to you, you can open a PR or draft PR to fix it. +- b.) The issue description does not propose a fix. In this case, you can ask what a proposed fix could look like and someone from the Diffusers team should answer shortly. If you have a good idea of how to fix it, feel free to directly open a PR. +- c.) There is already an open PR to fix the issue, but the issue hasn't been closed yet. If the PR has gone stale, you can simply open a new PR and link to the stale PR. PRs often go stale if the original contributor who wanted to fix the issue suddenly cannot find the time anymore to proceed. This often happens in open-source and is very normal. In this case, the community will be very happy if you give it a new try and leverage the knowledge of the existing PR. If there is already a PR and it is active, you can help the author by giving suggestions, reviewing the PR or even asking whether you can contribute to the PR. + + +### 5. Contribute to the documentation + +A good library **always** has good documentation! The official documentation is often one of the first points of contact for new users of the library, and therefore contributing to the documentation is a **highly +valuable contribution**. + +Contributing to the library can have many forms: + +- Correcting spelling or grammatical errors. +- Correct incorrect formatting of the docstring. If you see that the official documentation is weirdly displayed or a link is broken, we are very happy if you take some time to correct it. +- Correct the shape or dimensions of a docstring input or output tensor. +- Clarify documentation that is hard to understand or incorrect. +- Update outdated code examples. +- Translating the documentation to another language. + +Anything displayed on [the official Diffusers doc page](https://huggingface.co/docs/diffusers/index) is part of the official documentation and can be corrected, adjusted in the respective [documentation source](https://github.com/huggingface/diffusers/tree/main/docs/source). + +Please have a look at [this page](https://github.com/huggingface/diffusers/tree/main/docs) on how to verify changes made to the documentation locally. + + +### 6. Contribute a community pipeline + +[Pipelines](https://huggingface.co/docs/diffusers/api/pipelines/overview) are usually the first point of contact between the Diffusers library and the user. +Pipelines are examples of how to use Diffusers [models](https://huggingface.co/docs/diffusers/api/models/overview) and [schedulers](https://huggingface.co/docs/diffusers/api/schedulers/overview). +We support two types of pipelines: + +- Official Pipelines +- Community Pipelines + +Both official and community pipelines follow the same design and consist of the same type of components. + +Official pipelines are tested and maintained by the core maintainers of Diffusers. Their code +resides in [src/diffusers/pipelines](https://github.com/huggingface/diffusers/tree/main/src/diffusers/pipelines). +In contrast, community pipelines are contributed and maintained purely by the **community** and are **not** tested. +They reside in [examples/community](https://github.com/huggingface/diffusers/tree/main/examples/community) and while they can be accessed via the [PyPI diffusers package](https://pypi.org/project/diffusers/), their code is not part of the PyPI distribution. + +The reason for the distinction is that the core maintainers of the Diffusers library cannot maintain and test all +possible ways diffusion models can be used for inference, but some of them may be of interest to the community. +Officially released diffusion pipelines, +such as Stable Diffusion are added to the core src/diffusers/pipelines package which ensures +high quality of maintenance, no backward-breaking code changes, and testing. +More bleeding edge pipelines should be added as community pipelines. If usage for a community pipeline is high, the pipeline can be moved to the official pipelines upon request from the community. This is one of the ways we strive to be a community-driven library. + +To add a community pipeline, one should add a .py file to [examples/community](https://github.com/huggingface/diffusers/tree/main/examples/community) and adapt the [examples/community/README.md](https://github.com/huggingface/diffusers/tree/main/examples/community/README.md) to include an example of the new pipeline. + +An example can be seen [here](https://github.com/huggingface/diffusers/pull/2400). + +Community pipeline PRs are only checked at a superficial level and ideally they should be maintained by their original authors. + +Contributing a community pipeline is a great way to understand how Diffusers models and schedulers work. Having contributed a community pipeline is usually the first stepping stone to contributing an official pipeline to the +core package. + +### 7. Contribute to training examples + +Diffusers examples are a collection of training scripts that reside in [examples](https://github.com/huggingface/diffusers/tree/main/examples). + +We support two types of training examples: + +- Official training examples +- Research training examples + +Research training examples are located in [examples/research_projects](https://github.com/huggingface/diffusers/tree/main/examples/research_projects) whereas official training examples include all folders under [examples](https://github.com/huggingface/diffusers/tree/main/examples) except the `research_projects` and `community` folders. +The official training examples are maintained by the Diffusers' core maintainers whereas the research training examples are maintained by the community. +This is because of the same reasons put forward in [6. Contribute a community pipeline](#6-contribute-a-community-pipeline) for official pipelines vs. community pipelines: It is not feasible for the core maintainers to maintain all possible training methods for diffusion models. +If the Diffusers core maintainers and the community consider a certain training paradigm to be too experimental or not popular enough, the corresponding training code should be put in the `research_projects` folder and maintained by the author. + +Both official training and research examples consist of a directory that contains one or more training scripts, a `requirements.txt` file, and a `README.md` file. In order for the user to make use of the +training examples, it is required to clone the repository: + +```bash +git clone https://github.com/huggingface/diffusers +``` + +as well as to install all additional dependencies required for training: + +```bash +cd diffusers +pip install -r examples//requirements.txt +``` + +Therefore when adding an example, the `requirements.txt` file shall define all pip dependencies required for your training example so that once all those are installed, the user can run the example's training script. See, for example, the [DreamBooth `requirements.txt` file](https://github.com/huggingface/diffusers/blob/main/examples/dreambooth/requirements.txt). + +Training examples of the Diffusers library should adhere to the following philosophy: +- All the code necessary to run the examples should be found in a single Python file. +- One should be able to run the example from the command line with `python .py --args`. +- Examples should be kept simple and serve as **an example** on how to use Diffusers for training. The purpose of example scripts is **not** to create state-of-the-art diffusion models, but rather to reproduce known training schemes without adding too much custom logic. As a byproduct of this point, our examples also strive to serve as good educational materials. + +To contribute an example, it is highly recommended to look at already existing examples such as [dreambooth](https://github.com/huggingface/diffusers/blob/main/examples/dreambooth/train_dreambooth.py) to get an idea of how they should look like. +We strongly advise contributors to make use of the [Accelerate library](https://github.com/huggingface/accelerate) as it's tightly integrated +with Diffusers. +Once an example script works, please make sure to add a comprehensive `README.md` that states how to use the example exactly. This README should include: +- An example command on how to run the example script as shown [here e.g.](https://github.com/huggingface/diffusers/tree/main/examples/dreambooth#running-locally-with-pytorch). +- A link to some training results (logs, models, ...) that show what the user can expect as shown [here e.g.](https://api.wandb.ai/report/patrickvonplaten/xm6cd5q5). +- If you are adding a non-official/research training example, **please don't forget** to add a sentence that you are maintaining this training example which includes your git handle as shown [here](https://github.com/huggingface/diffusers/tree/main/examples/research_projects/intel_opts#diffusers-examples-with-intel-optimizations). + +If you are contributing to the official training examples, please also make sure to add a test to [examples/test_examples.py](https://github.com/huggingface/diffusers/blob/main/examples/test_examples.py). This is not necessary for non-official training examples. + +### 8. Fixing a "Good second issue" + +*Good second issues* are marked by the [Good second issue](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22Good+second+issue%22) label. Good second issues are +usually more complicated to solve than [Good first issues](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22). +The issue description usually gives less guidance on how to fix the issue and requires +a decent understanding of the library by the interested contributor. +If you are interested in tackling a good second issue, feel free to open a PR to fix it and link the PR to the issue. If you see that a PR has already been opened for this issue but did not get merged, have a look to understand why it wasn't merged and try to open an improved PR. +Good second issues are usually more difficult to get merged compared to good first issues, so don't hesitate to ask for help from the core maintainers. If your PR is almost finished the core maintainers can also jump into your PR and commit to it in order to get it merged. + +### 9. Adding pipelines, models, schedulers + +Pipelines, models, and schedulers are the most important pieces of the Diffusers library. +They provide easy access to state-of-the-art diffusion technologies and thus allow the community to +build powerful generative AI applications. + +By adding a new model, pipeline, or scheduler you might enable a new powerful use case for any of the user interfaces relying on Diffusers which can be of immense value for the whole generative AI ecosystem. + +Diffusers has a couple of open feature requests for all three components - feel free to gloss over them +if you don't know yet what specific component you would like to add: +- [Model or pipeline](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22New+pipeline%2Fmodel%22) +- [Scheduler](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22New+scheduler%22) + +Before adding any of the three components, it is strongly recommended that you give the [Philosophy guide](https://github.com/huggingface/diffusers/blob/main/PHILOSOPHY.md) a read to better understand the design of any of the three components. Please be aware that +we cannot merge model, scheduler, or pipeline additions that strongly diverge from our design philosophy +as it will lead to API inconsistencies. If you fundamentally disagree with a design choice, please +open a [Feedback issue](https://github.com/huggingface/diffusers/issues/new?assignees=&labels=&template=feedback.md&title=) instead so that it can be discussed whether a certain design +pattern/design choice shall be changed everywhere in the library and whether we shall update our design philosophy. Consistency across the library is very important for us. + +Please make sure to add links to the original codebase/paper to the PR and ideally also ping the +original author directly on the PR so that they can follow the progress and potentially help with questions. + +If you are unsure or stuck in the PR, don't hesitate to leave a message to ask for a first review or help. + +## How to write a good issue + +**The better your issue is written, the higher the chances that it will be quickly resolved.** + +1. Make sure that you've used the correct template for your issue. You can pick between *Bug Report*, *Feature Request*, *Feedback about API Design*, *New model/pipeline/scheduler addition*, *Forum*, or a blank issue. Make sure to pick the correct one when opening [a new issue](https://github.com/huggingface/diffusers/issues/new/choose). +2. **Be precise**: Give your issue a fitting title. Try to formulate your issue description as simple as possible. The more precise you are when submitting an issue, the less time it takes to understand the issue and potentially solve it. Make sure to open an issue for one issue only and not for multiple issues. If you found multiple issues, simply open multiple issues. If your issue is a bug, try to be as precise as possible about what bug it is - you should not just write "Error in diffusers". +3. **Reproducibility**: No reproducible code snippet == no solution. If you encounter a bug, maintainers **have to be able to reproduce** it. Make sure that you include a code snippet that can be copy-pasted into a Python interpreter to reproduce the issue. Make sure that your code snippet works, *i.e.* that there are no missing imports or missing links to images, ... Your issue should contain an error message **and** a code snippet that can be copy-pasted without any changes to reproduce the exact same error message. If your issue is using local model weights or local data that cannot be accessed by the reader, the issue cannot be solved. If you cannot share your data or model, try to make a dummy model or dummy data. +4. **Minimalistic**: Try to help the reader as much as you can to understand the issue as quickly as possible by staying as concise as possible. Remove all code / all information that is irrelevant to the issue. If you have found a bug, try to create the easiest code example you can to demonstrate your issue, do not just dump your whole workflow into the issue as soon as you have found a bug. E.g., if you train a model and get an error at some point during the training, you should first try to understand what part of the training code is responsible for the error and try to reproduce it with a couple of lines. Try to use dummy data instead of full datasets. +5. Add links. If you are referring to a certain naming, method, or model make sure to provide a link so that the reader can better understand what you mean. If you are referring to a specific PR or issue, make sure to link it to your issue. Do not assume that the reader knows what you are talking about. The more links you add to your issue the better. +6. Formatting. Make sure to nicely format your issue by formatting code into Python code syntax, and error messages into normal code syntax. See the [official GitHub formatting docs](https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax) for more information. +7. Think of your issue not as a ticket to be solved, but rather as a beautiful entry to a well-written encyclopedia. Every added issue is a contribution to publicly available knowledge. By adding a nicely written issue you not only make it easier for maintainers to solve your issue, but you are helping the whole community to better understand a certain aspect of the library. + +## How to write a good PR + +1. Be a chameleon. Understand existing design patterns and syntax and make sure your code additions flow seamlessly into the existing code base. Pull requests that significantly diverge from existing design patterns or user interfaces will not be merged. +2. Be laser focused. A pull request should solve one problem and one problem only. Make sure to not fall into the trap of "also fixing another problem while we're adding it". It is much more difficult to review pull requests that solve multiple, unrelated problems at once. +3. If helpful, try to add a code snippet that displays an example of how your addition can be used. +4. The title of your pull request should be a summary of its contribution. +5. If your pull request addresses an issue, please mention the issue number in +the pull request description to make sure they are linked (and people +consulting the issue know you are working on it); +6. To indicate a work in progress please prefix the title with `[WIP]`. These +are useful to avoid duplicated work, and to differentiate it from PRs ready +to be merged; +7. Try to formulate and format your text as explained in [How to write a good issue](#how-to-write-a-good-issue). +8. Make sure existing tests pass; +9. Add high-coverage tests. No quality testing = no merge. +- If you are adding new `@slow` tests, make sure they pass using +`RUN_SLOW=1 python -m pytest tests/test_my_new_model.py`. +CircleCI does not run the slow tests, but GitHub Actions does every night! +10. All public methods must have informative docstrings that work nicely with markdown. See [`pipeline_latent_diffusion.py`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/latent_diffusion/pipeline_latent_diffusion.py) for an example. +11. Due to the rapidly growing repository, it is important to make sure that no files that would significantly weigh down the repository are added. This includes images, videos, and other non-text files. We prefer to leverage a hf.co hosted `dataset` like +[`hf-internal-testing`](https://huggingface.co/hf-internal-testing) or [huggingface/documentation-images](https://huggingface.co/datasets/huggingface/documentation-images) to place these files. +If an external contribution, feel free to add the images to your PR and ask a Hugging Face member to migrate your images +to this dataset. + +## How to open a PR + +Before writing code, we strongly advise you to search through the existing PRs or +issues to make sure that nobody is already working on the same thing. If you are +unsure, it is always a good idea to open an issue to get some feedback. + +You will need basic `git` proficiency to be able to contribute to +🧨 Diffusers. `git` is not the easiest tool to use but it has the greatest +manual. Type `git --help` in a shell and enjoy. If you prefer books, [Pro +Git](https://git-scm.com/book/en/v2) is a very good reference. + +Follow these steps to start contributing ([supported Python versions](https://github.com/huggingface/diffusers/blob/42f25d601a910dceadaee6c44345896b4cfa9928/setup.py#L270)): + +1. Fork the [repository](https://github.com/huggingface/diffusers) by +clicking on the 'Fork' button on the repository's page. This creates a copy of the code +under your GitHub user account. + +2. Clone your fork to your local disk, and add the base repository as a remote: + + ```bash + $ git clone git@github.com:/diffusers.git + $ cd diffusers + $ git remote add upstream https://github.com/huggingface/diffusers.git + ``` + +3. Create a new branch to hold your development changes: + + ```bash + $ git checkout -b a-descriptive-name-for-my-changes + ``` + +**Do not** work on the `main` branch. + +4. Set up a development environment by running the following command in a virtual environment: + + ```bash + $ pip install -e ".[dev]" + ``` + +If you have already cloned the repo, you might need to `git pull` to get the most recent changes in the +library. + +5. Develop the features on your branch. + +As you work on the features, you should make sure that the test suite +passes. You should run the tests impacted by your changes like this: + + ```bash + $ pytest tests/.py + ``` + +Before you run the tests, please make sure you install the dependencies required for testing. You can do so +with this command: + + ```bash + $ pip install -e ".[test]" + ``` + +You can also run the full test suite with the following command, but it takes +a beefy machine to produce a result in a decent amount of time now that +Diffusers has grown a lot. Here is the command for it: + + ```bash + $ make test + ``` + +🧨 Diffusers relies on `ruff` and `isort` to format its source code +consistently. After you make changes, apply automatic style corrections and code verifications +that can't be automated in one go with: + + ```bash + $ make style + ``` + +🧨 Diffusers also uses `ruff` and a few custom scripts to check for coding mistakes. Quality +control runs in CI, however, you can also run the same checks with: + + ```bash + $ make quality + ``` + +Once you're happy with your changes, add changed files using `git add` and +make a commit with `git commit` to record your changes locally: + + ```bash + $ git add modified_file.py + $ git commit -m "A descriptive message about your changes." + ``` + +It is a good idea to sync your copy of the code with the original +repository regularly. This way you can quickly account for changes: + + ```bash + $ git pull upstream main + ``` + +Push the changes to your account using: + + ```bash + $ git push -u origin a-descriptive-name-for-my-changes + ``` + +6. Once you are satisfied, go to the +webpage of your fork on GitHub. Click on 'Pull request' to send your changes +to the project maintainers for review. + +7. It's ok if maintainers ask you for changes. It happens to core contributors +too! So everyone can see the changes in the Pull request, work in your local +branch and push the changes to your fork. They will automatically appear in +the pull request. + +### Tests + +An extensive test suite is included to test the library behavior and several examples. Library tests can be found in +the [tests folder](https://github.com/huggingface/diffusers/tree/main/tests). + +We like `pytest` and `pytest-xdist` because it's faster. From the root of the +repository, here's how to run tests with `pytest` for the library: + +```bash +$ python -m pytest -n auto --dist=loadfile -s -v ./tests/ +``` + +In fact, that's how `make test` is implemented! + +You can specify a smaller set of tests in order to test only the feature +you're working on. + +By default, slow tests are skipped. Set the `RUN_SLOW` environment variable to +`yes` to run them. This will download many gigabytes of models — make sure you +have enough disk space and a good Internet connection, or a lot of patience! + +```bash +$ RUN_SLOW=yes python -m pytest -n auto --dist=loadfile -s -v ./tests/ +``` + +`unittest` is fully supported, here's how to run tests with it: + +```bash +$ python -m unittest discover -s tests -t . -v +$ python -m unittest discover -s examples -t examples -v +``` + +### Syncing forked main with upstream (HuggingFace) main + +To avoid pinging the upstream repository which adds reference notes to each upstream PR and sends unnecessary notifications to the developers involved in these PRs, +when syncing the main branch of a forked repository, please, follow these steps: +1. When possible, avoid syncing with the upstream using a branch and PR on the forked repository. Instead, merge directly into the forked main. +2. If a PR is absolutely necessary, use the following steps after checking out your branch: +```bash +$ git checkout -b your-branch-for-syncing +$ git pull --squash --no-commit upstream main +$ git commit -m '' +$ git push --set-upstream origin your-branch-for-syncing +``` + +### Style guide + +For documentation strings, 🧨 Diffusers follows the [Google style](https://google.github.io/styleguide/pyguide.html). diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/source/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..f45ba795061ad2fa76fb11886b81cdabeaf45468 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/Dockerfile @@ -0,0 +1,8 @@ +FROM python:3.12-slim-bookworm +WORKDIR /workspace +RUN python -m pip install --no-cache-dir --extra-index-url https://download.pytorch.org/whl/cpu torch==2.11.0+cpu numpy==2.5.3 packaging==26.3 parameterized==0.9.0 pillow==12.3.0 pytest==8.4.2 setuptools==78.1.0 wheel==0.48.0 huggingface-hub==0.36.2 safetensors==0.5.3 filelock==3.32.6 requests==2.32.3 regex==2024.11.6 importlib_metadata==8.5.0 tokenizers==0.21.4 transformers==4.52.4 pyyaml==6.0.2 fsspec==2024.10.0 tqdm==4.67.1 typing-extensions==4.12.2 requests-mock==1.12.1 accelerate==1.15.0 httpx==0.28.1 +COPY . /workspace +RUN python -m pip install --no-cache-dir --no-deps --no-build-isolation -e . +RUN rm -rf /workspace/.git /root/.cache/pip +ENV PYTHONDONTWRITEBYTECODE=1 PYTEST_DISABLE_PLUGIN_AUTOLOAD=1 +ENV HF_HUB_OFFLINE=1 TRANSFORMERS_OFFLINE=1 HF_DATASETS_OFFLINE=1 diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/LICENSE b/tasks/tasksmith-1c5704b1f07f/tests/source/LICENSE new file mode 100644 index 0000000000000000000000000000000000000000..261eeb9e9f8b2b4b0d119366dda99c6fd7d35c64 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/MANIFEST.in b/tasks/tasksmith-1c5704b1f07f/tests/source/MANIFEST.in new file mode 100644 index 0000000000000000000000000000000000000000..b22fe1a28a1ef881fdb36af3c30b14c0a5d10aa5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/MANIFEST.in @@ -0,0 +1,2 @@ +include LICENSE +include src/diffusers/utils/model_card_template.md diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/Makefile b/tasks/tasksmith-1c5704b1f07f/tests/source/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..9af2e8b1a5c9993411ffa06e7e48f9cfec3bd164 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/Makefile @@ -0,0 +1,96 @@ +.PHONY: deps_table_update modified_only_fixup extra_style_checks quality style fixup fix-copies test test-examples + +# make sure to test the local checkout in scripts and not the pre-installed one (don't use quotes!) +export PYTHONPATH = src + +check_dirs := examples scripts src tests utils benchmarks + +modified_only_fixup: + $(eval modified_py_files := $(shell python utils/get_modified_files.py $(check_dirs))) + @if test -n "$(modified_py_files)"; then \ + echo "Checking/fixing $(modified_py_files)"; \ + ruff check $(modified_py_files) --fix; \ + ruff format $(modified_py_files);\ + else \ + echo "No library .py files were modified"; \ + fi + +# Update src/diffusers/dependency_versions_table.py + +deps_table_update: + @python setup.py deps_table_update + +deps_table_check_updated: + @md5sum src/diffusers/dependency_versions_table.py > md5sum.saved + @python setup.py deps_table_update + @md5sum -c --quiet md5sum.saved || (printf "\nError: the version dependency table is outdated.\nPlease run 'make fixup' or 'make style' and commit the changes.\n\n" && exit 1) + @rm md5sum.saved + +# autogenerating code + +autogenerate_code: deps_table_update + +# Check that the repo is in a good state + +repo-consistency: + python utils/check_dummies.py + python utils/check_repo.py + python utils/check_inits.py + +# this target runs checks on all files + +quality: + ruff check $(check_dirs) setup.py + ruff format --check $(check_dirs) setup.py + doc-builder style src/diffusers docs/source --max_len 119 --check_only + python utils/check_doc_toc.py + +# Format source code automatically and check is there are any problems left that need manual fixing + +extra_style_checks: + python utils/custom_init_isort.py + python utils/check_doc_toc.py --fix_and_overwrite + +# this target runs checks on all files and potentially modifies some of them + +style: + ruff check $(check_dirs) setup.py --fix + ruff format $(check_dirs) setup.py + doc-builder style src/diffusers docs/source --max_len 119 + ${MAKE} autogenerate_code + ${MAKE} extra_style_checks + +# Super fast fix and check target that only works on relevant modified files since the branch was made + +fixup: modified_only_fixup extra_style_checks autogenerate_code repo-consistency + +# Make marked copies of snippets of codes conform to the original + +fix-copies: + python utils/check_copies.py --fix_and_overwrite + python utils/check_dummies.py --fix_and_overwrite + +# Run tests for the library + +test: + python -m pytest -n auto --dist=loadfile -s -v ./tests/ + +# Run tests for examples + +test-examples: + python -m pytest -n auto --dist=loadfile -s -v ./examples/ + + +# Release stuff + +pre-release: + python utils/release.py + +pre-patch: + python utils/release.py --patch + +post-release: + python utils/release.py --post_release + +post-patch: + python utils/release.py --post_release --patch diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/PHILOSOPHY.md b/tasks/tasksmith-1c5704b1f07f/tests/source/PHILOSOPHY.md new file mode 100644 index 0000000000000000000000000000000000000000..d30d314931d3ec1463f836555315a5efe04c3a43 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/PHILOSOPHY.md @@ -0,0 +1,110 @@ + + +# Philosophy + +🧨 Diffusers provides **state-of-the-art** pretrained diffusion models across multiple modalities. +Its purpose is to serve as a **modular toolbox** for both inference and training. + +We aim to build a library that stands the test of time and therefore take API design very seriously. + +In a nutshell, Diffusers is built to be a natural extension of PyTorch. Therefore, most of our design choices are based on [PyTorch's Design Principles](https://pytorch.org/docs/stable/community/design.html#pytorch-design-philosophy). Let's go over the most important ones: + +## Usability over Performance + +- While Diffusers has many built-in performance-enhancing features (see [Memory and Speed](https://huggingface.co/docs/diffusers/optimization/fp16)), models are always loaded with the highest precision and lowest optimization. Therefore, by default diffusion pipelines are always instantiated on CPU with float32 precision if not otherwise defined by the user. This ensures usability across different platforms and accelerators and means that no complex installations are required to run the library. +- Diffusers aims to be a **light-weight** package and therefore has very few required dependencies, but many soft dependencies that can improve performance (such as `accelerate`, `safetensors`, `onnx`, etc...). We strive to keep the library as lightweight as possible so that it can be added without much concern as a dependency on other packages. +- Diffusers prefers simple, self-explainable code over condensed, magic code. This means that short-hand code syntaxes such as lambda functions, and advanced PyTorch operators are often not desired. + +## Simple over easy + +As PyTorch states, **explicit is better than implicit** and **simple is better than complex**. This design philosophy is reflected in multiple parts of the library: +- We follow PyTorch's API with methods like [`DiffusionPipeline.to`](https://huggingface.co/docs/diffusers/main/en/api/diffusion_pipeline#diffusers.DiffusionPipeline.to) to let the user handle device management. +- Raising concise error messages is preferred to silently correct erroneous input. Diffusers aims at teaching the user, rather than making the library as easy to use as possible. +- Complex model vs. scheduler logic is exposed instead of magically handled inside. Schedulers/Samplers are separated from diffusion models with minimal dependencies on each other. This forces the user to write the unrolled denoising loop. However, the separation allows for easier debugging and gives the user more control over adapting the denoising process or switching out diffusion models or schedulers. +- Separately trained components of the diffusion pipeline, *e.g.* the text encoder, the UNet, and the variational autoencoder, each has their own model class. This forces the user to handle the interaction between the different model components, and the serialization format separates the model components into different files. However, this allows for easier debugging and customization. DreamBooth or Textual Inversion training +is very simple thanks to Diffusers' ability to separate single components of the diffusion pipeline. + +## Tweakable, contributor-friendly over abstraction + +For large parts of the library, Diffusers adopts an important design principle of the [Transformers library](https://github.com/huggingface/transformers), which is to prefer copy-pasted code over hasty abstractions. This design principle is very opinionated and stands in stark contrast to popular design principles such as [Don't repeat yourself (DRY)](https://en.wikipedia.org/wiki/Don%27t_repeat_yourself). +In short, just like Transformers does for modeling files, Diffusers prefers to keep an extremely low level of abstraction and very self-contained code for pipelines and schedulers. +Functions, long code blocks, and even classes can be copied across multiple files which at first can look like a bad, sloppy design choice that makes the library unmaintainable. +**However**, this design has proven to be extremely successful for Transformers and makes a lot of sense for community-driven, open-source machine learning libraries because: +- Machine Learning is an extremely fast-moving field in which paradigms, model architectures, and algorithms are changing rapidly, which therefore makes it very difficult to define long-lasting code abstractions. +- Machine Learning practitioners like to be able to quickly tweak existing code for ideation and research and therefore prefer self-contained code over one that contains many abstractions. +- Open-source libraries rely on community contributions and therefore must build a library that is easy to contribute to. The more abstract the code, the more dependencies, the harder to read, and the harder to contribute to. Contributors simply stop contributing to very abstract libraries out of fear of breaking vital functionality. If contributing to a library cannot break other fundamental code, not only is it more inviting for potential new contributors, but it is also easier to review and contribute to multiple parts in parallel. + +At Hugging Face, we call this design the **single-file policy** which means that almost all of the code of a certain class should be written in a single, self-contained file. To read more about the philosophy, you can have a look +at [this blog post](https://huggingface.co/blog/transformers-design-philosophy). + +In Diffusers, we follow this philosophy for both pipelines and schedulers, but only partly for diffusion models. The reason we don't follow this design fully for diffusion models is because almost all diffusion pipelines, such +as [DDPM](https://huggingface.co/docs/diffusers/api/pipelines/ddpm), [Stable Diffusion](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/overview#stable-diffusion-pipelines), [unCLIP (DALL·E 2)](https://huggingface.co/docs/diffusers/api/pipelines/unclip) and [Imagen](https://imagen.research.google/) all rely on the same diffusion model, the [UNet](https://huggingface.co/docs/diffusers/api/models/unet2d-cond). + +Great, now you should have generally understood why 🧨 Diffusers is designed the way it is 🤗. +We try to apply these design principles consistently across the library. Nevertheless, there are some minor exceptions to the philosophy or some unlucky design choices. If you have feedback regarding the design, we would ❤️ to hear it [directly on GitHub](https://github.com/huggingface/diffusers/issues/new?assignees=&labels=&template=feedback.md&title=). + +## Design Philosophy in Details + +Now, let's look a bit into the nitty-gritty details of the design philosophy. Diffusers essentially consists of three major classes: [pipelines](https://github.com/huggingface/diffusers/tree/main/src/diffusers/pipelines), [models](https://github.com/huggingface/diffusers/tree/main/src/diffusers/models), and [schedulers](https://github.com/huggingface/diffusers/tree/main/src/diffusers/schedulers). +Let's walk through more detailed design decisions for each class. + +### Pipelines + +Pipelines are designed to be easy to use (therefore do not follow [*Simple over easy*](#simple-over-easy) 100%), are not feature complete, and should loosely be seen as examples of how to use [models](#models) and [schedulers](#schedulers) for inference. + +The following design principles are followed: +- Pipelines follow the single-file policy. All pipelines can be found in individual directories under src/diffusers/pipelines. One pipeline folder corresponds to one diffusion paper/project/release. Multiple pipeline files can be gathered in one pipeline folder, as it’s done for [`src/diffusers/pipelines/stable-diffusion`](https://github.com/huggingface/diffusers/tree/main/src/diffusers/pipelines/stable_diffusion). If pipelines share similar functionality, one can make use of the [# Copied from mechanism](https://github.com/huggingface/diffusers/blob/125d783076e5bd9785beb05367a2d2566843a271/src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_img2img.py#L251). +- Pipelines all inherit from [`DiffusionPipeline`]. +- Every pipeline consists of different model and scheduler components, that are documented in the [`model_index.json` file](https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5/blob/main/model_index.json), are accessible under the same name as attributes of the pipeline and can be shared between pipelines with [`DiffusionPipeline.components`](https://huggingface.co/docs/diffusers/main/en/api/diffusion_pipeline#diffusers.DiffusionPipeline.components) function. +- Every pipeline should be loadable via the [`DiffusionPipeline.from_pretrained`](https://huggingface.co/docs/diffusers/main/en/api/diffusion_pipeline#diffusers.DiffusionPipeline.from_pretrained) function. +- Pipelines should be used **only** for inference. +- Pipelines should be very readable, self-explanatory, and easy to tweak. +- Pipelines should be designed to build on top of each other and be easy to integrate into higher-level APIs. +- Pipelines are **not** intended to be feature-complete user interfaces. For feature-complete user interfaces one should rather have a look at [InvokeAI](https://github.com/invoke-ai/InvokeAI), [Diffuzers](https://github.com/abhishekkrthakur/diffuzers), and [lama-cleaner](https://github.com/Sanster/lama-cleaner). +- Every pipeline should have one and only one way to run it via a `__call__` method. The naming of the `__call__` arguments should be shared across all pipelines. +- Pipelines should be named after the task they are intended to solve. +- In almost all cases, novel diffusion pipelines shall be implemented in a new pipeline folder/file. + +### Models + +Models are designed as configurable toolboxes that are natural extensions of [PyTorch's Module class](https://pytorch.org/docs/stable/generated/torch.nn.Module.html). They only partly follow the **single-file policy**. + +The following design principles are followed: +- Models correspond to **a type of model architecture**. *E.g.* the [`UNet2DConditionModel`] class is used for all UNet variations that expect 2D image inputs and are conditioned on some context. +- All models can be found in [`src/diffusers/models`](https://github.com/huggingface/diffusers/tree/main/src/diffusers/models) and every model architecture shall be defined in its file, e.g. [`unets/unet_2d_condition.py`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/unets/unet_2d_condition.py), [`transformers/transformer_2d.py`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/transformers/transformer_2d.py), etc... +- Models **do not** follow the single-file policy and should make use of smaller model building blocks, such as [`attention.py`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention.py), [`resnet.py`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/resnet.py), [`embeddings.py`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/embeddings.py), etc... **Note**: This is in stark contrast to Transformers' modeling files and shows that models do not really follow the single-file policy. +- Models intend to expose complexity, just like PyTorch's `Module` class, and give clear error messages. +- Models all inherit from `ModelMixin` and `ConfigMixin`. +- Models can be optimized for performance when it doesn’t demand major code changes, keep backward compatibility, and give significant memory or compute gain. +- Models should by default have the highest precision and lowest performance setting. +- To integrate new model checkpoints whose general architecture can be classified as an architecture that already exists in Diffusers, the existing model architecture shall be adapted to make it work with the new checkpoint. One should only create a new file if the model architecture is fundamentally different. +- Models should be designed to be easily extendable to future changes. This can be achieved by limiting public function arguments, configuration arguments, and "foreseeing" future changes, *e.g.* it is usually better to add `string` "...type" arguments that can easily be extended to new future types instead of boolean `is_..._type` arguments. Only the minimum amount of changes shall be made to existing architectures to make a new model checkpoint work. +- The model design is a difficult trade-off between keeping code readable and concise and supporting many model checkpoints. For most parts of the modeling code, classes shall be adapted for new model checkpoints, while there are some exceptions where it is preferred to add new classes to make sure the code is kept concise and +readable long-term, such as [UNet blocks](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/unets/unet_2d_blocks.py) and [Attention processors](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py). + +### Schedulers + +Schedulers are responsible to guide the denoising process for inference as well as to define a noise schedule for training. They are designed as individual classes with loadable configuration files and strongly follow the **single-file policy**. + +The following design principles are followed: +- All schedulers are found in [`src/diffusers/schedulers`](https://github.com/huggingface/diffusers/tree/main/src/diffusers/schedulers). +- Schedulers are **not** allowed to import from large utils files and shall be kept very self-contained. +- One scheduler Python file corresponds to one scheduler algorithm (as might be defined in a paper). +- If schedulers share similar functionalities, we can make use of the `# Copied from` mechanism. +- Schedulers all inherit from `SchedulerMixin` and `ConfigMixin`. +- Schedulers can be easily swapped out with the [`ConfigMixin.from_config`](https://huggingface.co/docs/diffusers/main/en/api/configuration#diffusers.ConfigMixin.from_config) method as explained in detail [here](./docs/source/en/using-diffusers/schedulers.md). +- Every scheduler has to have a `set_num_inference_steps`, and a `step` function. `set_num_inference_steps(...)` has to be called before every denoising process, *i.e.* before `step(...)` is called. +- Every scheduler exposes the timesteps to be "looped over" via a `timesteps` attribute, which is an array of timesteps the model will be called upon. +- The `step(...)` function takes a predicted model output and the "current" sample (x_t) and returns the "previous", slightly more denoised sample (x_t-1). +- Given the complexity of diffusion schedulers, the `step` function does not expose all the complexity and can be a bit of a "black box". +- In almost all cases, novel schedulers shall be implemented in a new scheduling file. diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/README.md b/tasks/tasksmith-1c5704b1f07f/tests/source/README.md new file mode 100644 index 0000000000000000000000000000000000000000..07334416ed1be57f9175096b27cd2c6a551a9a10 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/README.md @@ -0,0 +1,231 @@ + + +

+
+ +
+

+

+ GitHub + GitHub release + GitHub release + Contributor Covenant + X account +

+ +🤗 Diffusers is the go-to library for state-of-the-art pretrained diffusion models for generating images, audio, and even 3D structures of molecules. Whether you're looking for a simple inference solution or training your own diffusion models, 🤗 Diffusers is a modular toolbox that supports both. Our library is designed with a focus on [usability over performance](https://huggingface.co/docs/diffusers/conceptual/philosophy#usability-over-performance), [simple over easy](https://huggingface.co/docs/diffusers/conceptual/philosophy#simple-over-easy), and [customizability over abstractions](https://huggingface.co/docs/diffusers/conceptual/philosophy#tweakable-contributorfriendly-over-abstraction). + +🤗 Diffusers offers three core components: + +- State-of-the-art [diffusion pipelines](https://huggingface.co/docs/diffusers/api/pipelines/overview) that can be run in inference with just a few lines of code. +- Interchangeable noise [schedulers](https://huggingface.co/docs/diffusers/api/schedulers/overview) for different diffusion speeds and output quality. +- Pretrained [models](https://huggingface.co/docs/diffusers/api/models/overview) that can be used as building blocks, and combined with schedulers, for creating your own end-to-end diffusion systems. + +## Installation + +We recommend installing 🤗 Diffusers in a virtual environment from PyPI or Conda. For more details about installing [PyTorch](https://pytorch.org/get-started/locally/), please refer to their official documentation. + +### PyTorch + +With `pip` (official package): + +```bash +pip install --upgrade diffusers[torch] +``` + +With `conda` (maintained by the community): + +```sh +conda install -c conda-forge diffusers +``` + +### Apple Silicon (M1/M2) support + +Please refer to the [How to use Stable Diffusion in Apple Silicon](https://huggingface.co/docs/diffusers/optimization/mps) guide. + +## Quickstart + +Generating outputs is super easy with 🤗 Diffusers. To generate an image from text, use the `from_pretrained` method to load any pretrained diffusion model (browse the [Hub](https://huggingface.co/models?library=diffusers&sort=downloads) for 30,000+ checkpoints): + +```python +from diffusers import DiffusionPipeline +import torch + +pipeline = DiffusionPipeline.from_pretrained("stable-diffusion-v1-5/stable-diffusion-v1-5", torch_dtype=torch.float16) +pipeline.to("cuda") +pipeline("An image of a squirrel in Picasso style").images[0] +``` + +You can also dig into the models and schedulers toolbox to build your own diffusion system: + +```python +from diffusers import DDPMScheduler, UNet2DModel +from PIL import Image +import torch + +scheduler = DDPMScheduler.from_pretrained("google/ddpm-cat-256") +model = UNet2DModel.from_pretrained("google/ddpm-cat-256").to("cuda") +scheduler.set_timesteps(50) + +sample_size = model.config.sample_size +noise = torch.randn((1, 3, sample_size, sample_size), device="cuda") +input = noise + +for t in scheduler.timesteps: + with torch.no_grad(): + noisy_residual = model(input, t).sample + prev_noisy_sample = scheduler.step(noisy_residual, t, input).prev_sample + input = prev_noisy_sample + +image = (input / 2 + 0.5).clamp(0, 1) +image = image.cpu().permute(0, 2, 3, 1).numpy()[0] +image = Image.fromarray((image * 255).round().astype("uint8")) +image +``` + +Check out the [Quickstart](https://huggingface.co/docs/diffusers/quicktour) to launch your diffusion journey today! + +## How to navigate the documentation + +| **Documentation** | **What can I learn?** | +|---------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| +| [Tutorial](https://huggingface.co/docs/diffusers/tutorials/tutorial_overview) | A basic crash course for learning how to use the library's most important features like using models and schedulers to build your own diffusion system, and training your own diffusion model. | +| [Loading](https://huggingface.co/docs/diffusers/using-diffusers/loading) | Guides for how to load and configure all the components (pipelines, models, and schedulers) of the library, as well as how to use different schedulers. | +| [Pipelines for inference](https://huggingface.co/docs/diffusers/using-diffusers/overview_techniques) | Guides for how to use pipelines for different inference tasks, batched generation, controlling generated outputs and randomness, and how to contribute a pipeline to the library. | +| [Optimization](https://huggingface.co/docs/diffusers/optimization/fp16) | Guides for how to optimize your diffusion model to run faster and consume less memory. | +| [Training](https://huggingface.co/docs/diffusers/training/overview) | Guides for how to train a diffusion model for different tasks with different training techniques. | +## Contribution + +We ❤️ contributions from the open-source community! +If you want to contribute to this library, please check out our [Contribution guide](https://github.com/huggingface/diffusers/blob/main/CONTRIBUTING.md). +You can look out for [issues](https://github.com/huggingface/diffusers/issues) you'd like to tackle to contribute to the library. +- See [Good first issues](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22) for general opportunities to contribute +- See [New model/pipeline](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22New+pipeline%2Fmodel%22) to contribute exciting new diffusion models / diffusion pipelines +- See [New scheduler](https://github.com/huggingface/diffusers/issues?q=is%3Aopen+is%3Aissue+label%3A%22New+scheduler%22) + +Also, say 👋 in our public Discord channel Join us on Discord. We discuss the hottest trends about diffusion models, help each other with contributions, personal projects or just hang out ☕. + + +## Popular Tasks & Pipelines + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
TaskPipeline🤗 Hub
Unconditional Image Generation DDPM google/ddpm-ema-church-256
Text-to-ImageStable Diffusion Text-to-Image stable-diffusion-v1-5/stable-diffusion-v1-5
Text-to-ImageunCLIP kakaobrain/karlo-v1-alpha
Text-to-ImageDeepFloyd IF DeepFloyd/IF-I-XL-v1.0
Text-to-ImageKandinsky kandinsky-community/kandinsky-2-2-decoder
Text-guided Image-to-ImageControlNet lllyasviel/sd-controlnet-canny
Text-guided Image-to-ImageInstructPix2Pix timbrooks/instruct-pix2pix
Text-guided Image-to-ImageStable Diffusion Image-to-Image stable-diffusion-v1-5/stable-diffusion-v1-5
Text-guided Image InpaintingStable Diffusion Inpainting stable-diffusion-v1-5/stable-diffusion-inpainting
Image VariationStable Diffusion Image Variation lambdalabs/sd-image-variations-diffusers
Super ResolutionStable Diffusion Upscale stabilityai/stable-diffusion-x4-upscaler
Super ResolutionStable Diffusion Latent Upscale stabilityai/sd-x2-latent-upscaler
+ +## Popular libraries using 🧨 Diffusers + +- https://github.com/microsoft/TaskMatrix +- https://github.com/invoke-ai/InvokeAI +- https://github.com/InstantID/InstantID +- https://github.com/apple/ml-stable-diffusion +- https://github.com/Sanster/lama-cleaner +- https://github.com/IDEA-Research/Grounded-Segment-Anything +- https://github.com/ashawkey/stable-dreamfusion +- https://github.com/deep-floyd/IF +- https://github.com/bentoml/BentoML +- https://github.com/bmaltais/kohya_ss +- +14,000 other amazing GitHub repositories 💪 + +Thank you for using us ❤️. + +## Credits + +This library concretizes previous work by many different authors and would not have been possible without their great research and implementations. We'd like to thank, in particular, the following implementations which have helped us in our development and without which the API could not have been as polished today: + +- @CompVis' latent diffusion models library, available [here](https://github.com/CompVis/latent-diffusion) +- @hojonathanho original DDPM implementation, available [here](https://github.com/hojonathanho/diffusion) as well as the extremely useful translation into PyTorch by @pesser, available [here](https://github.com/pesser/pytorch_diffusion) +- @ermongroup's DDIM implementation, available [here](https://github.com/ermongroup/ddim) +- @yang-song's Score-VE and Score-VP implementations, available [here](https://github.com/yang-song/score_sde_pytorch) + +We also want to thank @heejkoo for the very helpful overview of papers, code and resources on diffusion models, available [here](https://github.com/heejkoo/Awesome-Diffusion-Models) as well as @crowsonkb and @rromb for useful discussions and insights. + +## Citation + +```bibtex +@misc{von-platen-etal-2022-diffusers, + author = {Patrick von Platen and Suraj Patil and Anton Lozhkov and Pedro Cuenca and Nathan Lambert and Kashif Rasul and Mishig Davaadorj and Dhruv Nair and Sayak Paul and William Berman and Yiyi Xu and Steven Liu and Thomas Wolf}, + title = {Diffusers: State-of-the-art diffusion models}, + year = {2022}, + publisher = {GitHub}, + journal = {GitHub repository}, + howpublished = {\url{https://github.com/huggingface/diffusers}} +} +``` diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/_typos.toml b/tasks/tasksmith-1c5704b1f07f/tests/source/_typos.toml new file mode 100644 index 0000000000000000000000000000000000000000..551099f981e7885fbda9ed28e297bace0e13407b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/_typos.toml @@ -0,0 +1,13 @@ +# Files for typos +# Instruction: https://github.com/marketplace/actions/typos-action#getting-started + +[default.extend-identifiers] + +[default.extend-words] +NIN="NIN" # NIN is used in scripts/convert_ncsnpp_original_checkpoint_to_diffusers.py +nd="np" # nd may be np (numpy) +parms="parms" # parms is used in scripts/convert_original_stable_diffusion_to_diffusers.py + + +[files] +extend-exclude = ["_typos.toml"] diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/README.md b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/README.md new file mode 100644 index 0000000000000000000000000000000000000000..afab1b0de354e31c4b7675dbda132e46c4a713e0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/README.md @@ -0,0 +1,69 @@ +# Diffusers Benchmarks + +Welcome to Diffusers Benchmarks. These benchmarks are use to obtain latency and memory information of the most popular models across different scenarios such as: + +* Base case i.e., when using `torch.bfloat16` and `torch.nn.functional.scaled_dot_product_attention`. +* Base + `torch.compile()` +* NF4 quantization +* Layerwise upcasting + +Instead of full diffusion pipelines, only the forward pass of the respective model classes (such as `FluxTransformer2DModel`) is tested with the real checkpoints (such as `"black-forest-labs/FLUX.1-dev"`). + +The entrypoint to running all the currently available benchmarks is in `run_all.py`. However, one can run the individual benchmarks, too, e.g., `python benchmarking_flux.py`. It should produce a CSV file containing various information about the benchmarks run. + +The benchmarks are run on a weekly basis and the CI is defined in [benchmark.yml](../.github/workflows/benchmark.yml). + +## Running the benchmarks manually + +First set up `torch` and install `diffusers` from the root of the directory: + +```py +pip install -e ".[quality,test]" +``` + +Then make sure the other dependencies are installed: + +```sh +cd benchmarks/ +pip install -r requirements.txt +``` + +We need to be authenticated to access some of the checkpoints used during benchmarking: + +```sh +hf auth login +``` + +We use an L40 GPU with 128GB RAM to run the benchmark CI. As such, the benchmarks are configured to run on NVIDIA GPUs. So, make sure you have access to a similar machine (or modify the benchmarking scripts accordingly). + +Then you can either launch the entire benchmarking suite by running: + +```sh +python run_all.py +``` + +Or, you can run the individual benchmarks. + +## Customizing the benchmarks + +We define "scenarios" to cover the most common ways in which these models are used. You can +define a new scenario, modifying an existing benchmark file: + +```py +BenchmarkScenario( + name=f"{CKPT_ID}-bnb-8bit", + model_cls=FluxTransformer2DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + "quantization_config": BitsAndBytesConfig(load_in_8bit=True), + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=model_init_fn, +) +``` + +You can also configure a new model-level benchmark and add it to the existing suite. To do so, just defining a valid benchmarking file like `benchmarking_flux.py` should be enough. + +Happy benchmarking 🧨 \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/__init__.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_flux.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_flux.py new file mode 100644 index 0000000000000000000000000000000000000000..18a2680052ea9a72cbaa6e4bb9338dc98fe373ea --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_flux.py @@ -0,0 +1,98 @@ +from functools import partial + +import torch +from benchmarking_utils import BenchmarkMixin, BenchmarkScenario, model_init_fn + +from diffusers import BitsAndBytesConfig, FluxTransformer2DModel +from diffusers.utils.testing_utils import torch_device + + +CKPT_ID = "black-forest-labs/FLUX.1-dev" +RESULT_FILENAME = "flux.csv" + + +def get_input_dict(**device_dtype_kwargs): + # resolution: 1024x1024 + # maximum sequence length 512 + hidden_states = torch.randn(1, 4096, 64, **device_dtype_kwargs) + encoder_hidden_states = torch.randn(1, 512, 4096, **device_dtype_kwargs) + pooled_prompt_embeds = torch.randn(1, 768, **device_dtype_kwargs) + image_ids = torch.ones(512, 3, **device_dtype_kwargs) + text_ids = torch.ones(4096, 3, **device_dtype_kwargs) + timestep = torch.tensor([1.0], **device_dtype_kwargs) + guidance = torch.tensor([1.0], **device_dtype_kwargs) + + return { + "hidden_states": hidden_states, + "encoder_hidden_states": encoder_hidden_states, + "img_ids": image_ids, + "txt_ids": text_ids, + "pooled_projections": pooled_prompt_embeds, + "timestep": timestep, + "guidance": guidance, + } + + +if __name__ == "__main__": + scenarios = [ + BenchmarkScenario( + name=f"{CKPT_ID}-bf16", + model_cls=FluxTransformer2DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=model_init_fn, + compile_kwargs={"fullgraph": True}, + ), + BenchmarkScenario( + name=f"{CKPT_ID}-bnb-nf4", + model_cls=FluxTransformer2DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + "quantization_config": BitsAndBytesConfig( + load_in_4bit=True, bnb_4bit_compute_dtype=torch.bfloat16, bnb_4bit_quant_type="nf4" + ), + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=model_init_fn, + ), + BenchmarkScenario( + name=f"{CKPT_ID}-layerwise-upcasting", + model_cls=FluxTransformer2DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=partial(model_init_fn, layerwise_upcasting=True), + ), + BenchmarkScenario( + name=f"{CKPT_ID}-group-offload-leaf", + model_cls=FluxTransformer2DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=partial( + model_init_fn, + group_offload_kwargs={ + "onload_device": torch_device, + "offload_device": torch.device("cpu"), + "offload_type": "leaf_level", + "use_stream": True, + "non_blocking": True, + }, + ), + ), + ] + + runner = BenchmarkMixin() + runner.run_bencmarks_and_collate(scenarios, filename=RESULT_FILENAME) diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_ltx.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_ltx.py new file mode 100644 index 0000000000000000000000000000000000000000..3d698fd0bd578d0e2b0e5650f2d2c4c39614e2af --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_ltx.py @@ -0,0 +1,80 @@ +from functools import partial + +import torch +from benchmarking_utils import BenchmarkMixin, BenchmarkScenario, model_init_fn + +from diffusers import LTXVideoTransformer3DModel +from diffusers.utils.testing_utils import torch_device + + +CKPT_ID = "Lightricks/LTX-Video-0.9.7-dev" +RESULT_FILENAME = "ltx.csv" + + +def get_input_dict(**device_dtype_kwargs): + # 512x704 (161 frames) + # `max_sequence_length`: 256 + hidden_states = torch.randn(1, 7392, 128, **device_dtype_kwargs) + encoder_hidden_states = torch.randn(1, 256, 4096, **device_dtype_kwargs) + encoder_attention_mask = torch.ones(1, 256, **device_dtype_kwargs) + timestep = torch.tensor([1.0], **device_dtype_kwargs) + video_coords = torch.randn(1, 3, 7392, **device_dtype_kwargs) + + return { + "hidden_states": hidden_states, + "encoder_hidden_states": encoder_hidden_states, + "encoder_attention_mask": encoder_attention_mask, + "timestep": timestep, + "video_coords": video_coords, + } + + +if __name__ == "__main__": + scenarios = [ + BenchmarkScenario( + name=f"{CKPT_ID}-bf16", + model_cls=LTXVideoTransformer3DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=model_init_fn, + compile_kwargs={"fullgraph": True}, + ), + BenchmarkScenario( + name=f"{CKPT_ID}-layerwise-upcasting", + model_cls=LTXVideoTransformer3DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=partial(model_init_fn, layerwise_upcasting=True), + ), + BenchmarkScenario( + name=f"{CKPT_ID}-group-offload-leaf", + model_cls=LTXVideoTransformer3DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=partial( + model_init_fn, + group_offload_kwargs={ + "onload_device": torch_device, + "offload_device": torch.device("cpu"), + "offload_type": "leaf_level", + "use_stream": True, + "non_blocking": True, + }, + ), + ), + ] + + runner = BenchmarkMixin() + runner.run_bencmarks_and_collate(scenarios, filename=RESULT_FILENAME) diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_sdxl.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_sdxl.py new file mode 100644 index 0000000000000000000000000000000000000000..ded62784f2909aa92d6917430f2baf427ee6a25f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_sdxl.py @@ -0,0 +1,82 @@ +from functools import partial + +import torch +from benchmarking_utils import BenchmarkMixin, BenchmarkScenario, model_init_fn + +from diffusers import UNet2DConditionModel +from diffusers.utils.testing_utils import torch_device + + +CKPT_ID = "stabilityai/stable-diffusion-xl-base-1.0" +RESULT_FILENAME = "sdxl.csv" + + +def get_input_dict(**device_dtype_kwargs): + # height: 1024 + # width: 1024 + # max_sequence_length: 77 + hidden_states = torch.randn(1, 4, 128, 128, **device_dtype_kwargs) + encoder_hidden_states = torch.randn(1, 77, 2048, **device_dtype_kwargs) + timestep = torch.tensor([1.0], **device_dtype_kwargs) + added_cond_kwargs = { + "text_embeds": torch.randn(1, 1280, **device_dtype_kwargs), + "time_ids": torch.ones(1, 6, **device_dtype_kwargs), + } + + return { + "sample": hidden_states, + "encoder_hidden_states": encoder_hidden_states, + "timestep": timestep, + "added_cond_kwargs": added_cond_kwargs, + } + + +if __name__ == "__main__": + scenarios = [ + BenchmarkScenario( + name=f"{CKPT_ID}-bf16", + model_cls=UNet2DConditionModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "unet", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=model_init_fn, + compile_kwargs={"fullgraph": True}, + ), + BenchmarkScenario( + name=f"{CKPT_ID}-layerwise-upcasting", + model_cls=UNet2DConditionModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "unet", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=partial(model_init_fn, layerwise_upcasting=True), + ), + BenchmarkScenario( + name=f"{CKPT_ID}-group-offload-leaf", + model_cls=UNet2DConditionModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "unet", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=partial( + model_init_fn, + group_offload_kwargs={ + "onload_device": torch_device, + "offload_device": torch.device("cpu"), + "offload_type": "leaf_level", + "use_stream": True, + "non_blocking": True, + }, + ), + ), + ] + + runner = BenchmarkMixin() + runner.run_bencmarks_and_collate(scenarios, filename=RESULT_FILENAME) diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_utils.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..c8c1a10ef899f2c8965139542d1c27811d64ab0c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_utils.py @@ -0,0 +1,244 @@ +import gc +import inspect +import logging +import os +import queue +import threading +from contextlib import nullcontext +from dataclasses import dataclass +from typing import Any, Callable, Dict, Optional, Union + +import pandas as pd +import torch +import torch.utils.benchmark as benchmark + +from diffusers.models.modeling_utils import ModelMixin +from diffusers.utils.testing_utils import require_torch_gpu, torch_device + + +logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(name)s: %(message)s") +logger = logging.getLogger(__name__) + +NUM_WARMUP_ROUNDS = 5 + + +def benchmark_fn(f, *args, **kwargs): + t0 = benchmark.Timer( + stmt="f(*args, **kwargs)", + globals={"args": args, "kwargs": kwargs, "f": f}, + num_threads=1, + ) + return float(f"{(t0.blocked_autorange().mean):.3f}") + + +def flush(): + gc.collect() + torch.cuda.empty_cache() + torch.cuda.reset_max_memory_allocated() + torch.cuda.reset_peak_memory_stats() + + +# Adapted from https://github.com/lucasb-eyer/cnn_vit_benchmarks/blob/15b665ff758e8062131353076153905cae00a71f/main.py +def calculate_flops(model, input_dict): + try: + from torchprofile import profile_macs + except ModuleNotFoundError: + raise + + # This is a hacky way to convert the kwargs to args as `profile_macs` cries about kwargs. + sig = inspect.signature(model.forward) + param_names = [ + p.name + for p in sig.parameters.values() + if p.kind + in ( + inspect.Parameter.POSITIONAL_ONLY, + inspect.Parameter.POSITIONAL_OR_KEYWORD, + ) + and p.name != "self" + ] + bound = sig.bind_partial(**input_dict) + bound.apply_defaults() + args = tuple(bound.arguments[name] for name in param_names) + + model.eval() + with torch.no_grad(): + macs = profile_macs(model, args) + flops = 2 * macs # 1 MAC operation = 2 FLOPs (1 multiplication + 1 addition) + return flops + + +def calculate_params(model): + return sum(p.numel() for p in model.parameters()) + + +# Users can define their own in case this doesn't suffice. For most cases, +# it should be sufficient. +def model_init_fn(model_cls, group_offload_kwargs=None, layerwise_upcasting=False, **init_kwargs): + model = model_cls.from_pretrained(**init_kwargs).eval() + if group_offload_kwargs and isinstance(group_offload_kwargs, dict): + model.enable_group_offload(**group_offload_kwargs) + else: + model.to(torch_device) + if layerwise_upcasting: + model.enable_layerwise_casting( + storage_dtype=torch.float8_e4m3fn, compute_dtype=init_kwargs.get("torch_dtype", torch.bfloat16) + ) + return model + + +@dataclass +class BenchmarkScenario: + name: str + model_cls: ModelMixin + model_init_kwargs: Dict[str, Any] + model_init_fn: Callable + get_model_input_dict: Callable + compile_kwargs: Optional[Dict[str, Any]] = None + + +@require_torch_gpu +class BenchmarkMixin: + def pre_benchmark(self): + flush() + torch.compiler.reset() + + def post_benchmark(self, model): + model.cpu() + flush() + torch.compiler.reset() + + @torch.no_grad() + def run_benchmark(self, scenario: BenchmarkScenario): + # 0) Basic stats + logger.info(f"Running scenario: {scenario.name}.") + try: + model = model_init_fn(scenario.model_cls, **scenario.model_init_kwargs) + num_params = round(calculate_params(model) / 1e9, 2) + try: + flops = round(calculate_flops(model, input_dict=scenario.get_model_input_dict()) / 1e9, 2) + except Exception as e: + logger.info(f"Problem in calculating FLOPs:\n{e}") + flops = None + model.cpu() + del model + except Exception as e: + logger.info(f"Error while initializing the model and calculating FLOPs:\n{e}") + return {} + self.pre_benchmark() + + # 1) plain stats + results = {} + plain = None + try: + plain = self._run_phase( + model_cls=scenario.model_cls, + init_fn=scenario.model_init_fn, + init_kwargs=scenario.model_init_kwargs, + get_input_fn=scenario.get_model_input_dict, + compile_kwargs=None, + ) + except Exception as e: + logger.info(f"Benchmark could not be run with the following error:\n{e}") + return results + + # 2) compiled stats (if any) + compiled = {"time": None, "memory": None} + if scenario.compile_kwargs: + try: + compiled = self._run_phase( + model_cls=scenario.model_cls, + init_fn=scenario.model_init_fn, + init_kwargs=scenario.model_init_kwargs, + get_input_fn=scenario.get_model_input_dict, + compile_kwargs=scenario.compile_kwargs, + ) + except Exception as e: + logger.info(f"Compilation benchmark could not be run with the following error\n: {e}") + if plain is None: + return results + + # 3) merge + result = { + "scenario": scenario.name, + "model_cls": scenario.model_cls.__name__, + "num_params_B": num_params, + "flops_G": flops, + "time_plain_s": plain["time"], + "mem_plain_GB": plain["memory"], + "time_compile_s": compiled["time"], + "mem_compile_GB": compiled["memory"], + } + if scenario.compile_kwargs: + result["fullgraph"] = scenario.compile_kwargs.get("fullgraph", False) + result["mode"] = scenario.compile_kwargs.get("mode", "default") + else: + result["fullgraph"], result["mode"] = None, None + return result + + def run_bencmarks_and_collate(self, scenarios: Union[BenchmarkScenario, list[BenchmarkScenario]], filename: str): + if not isinstance(scenarios, list): + scenarios = [scenarios] + record_queue = queue.Queue() + stop_signal = object() + + def _writer_thread(): + while True: + item = record_queue.get() + if item is stop_signal: + break + df_row = pd.DataFrame([item]) + write_header = not os.path.exists(filename) + df_row.to_csv(filename, mode="a", header=write_header, index=False) + record_queue.task_done() + + record_queue.task_done() + + writer = threading.Thread(target=_writer_thread, daemon=True) + writer.start() + + for s in scenarios: + try: + record = self.run_benchmark(s) + if record: + record_queue.put(record) + else: + logger.info(f"Record empty from scenario: {s.name}.") + except Exception as e: + logger.info(f"Running scenario ({s.name}) led to error:\n{e}") + record_queue.put(stop_signal) + logger.info(f"Results serialized to {filename=}.") + + def _run_phase( + self, + *, + model_cls: ModelMixin, + init_fn: Callable, + init_kwargs: Dict[str, Any], + get_input_fn: Callable, + compile_kwargs: Optional[Dict[str, Any]], + ) -> Dict[str, float]: + # setup + self.pre_benchmark() + + # init & (optional) compile + model = init_fn(model_cls, **init_kwargs) + if compile_kwargs: + model.compile(**compile_kwargs) + + # build inputs + inp = get_input_fn() + + # measure + run_ctx = torch._inductor.utils.fresh_inductor_cache() if compile_kwargs else nullcontext() + with run_ctx: + for _ in range(NUM_WARMUP_ROUNDS): + _ = model(**inp) + time_s = benchmark_fn(lambda m, d: m(**d), model, inp) + mem_gb = torch.cuda.max_memory_allocated() / (1024**3) + mem_gb = round(mem_gb, 2) + + # teardown + self.post_benchmark(model) + del model + return {"time": time_s, "memory": mem_gb} diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_wan.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_wan.py new file mode 100644 index 0000000000000000000000000000000000000000..64e81fdb6b0932cca4bf880e9859b30020fdca3b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/benchmarking_wan.py @@ -0,0 +1,74 @@ +from functools import partial + +import torch +from benchmarking_utils import BenchmarkMixin, BenchmarkScenario, model_init_fn + +from diffusers import WanTransformer3DModel +from diffusers.utils.testing_utils import torch_device + + +CKPT_ID = "Wan-AI/Wan2.1-T2V-14B-Diffusers" +RESULT_FILENAME = "wan.csv" + + +def get_input_dict(**device_dtype_kwargs): + # height: 480 + # width: 832 + # num_frames: 81 + # max_sequence_length: 512 + hidden_states = torch.randn(1, 16, 21, 60, 104, **device_dtype_kwargs) + encoder_hidden_states = torch.randn(1, 512, 4096, **device_dtype_kwargs) + timestep = torch.tensor([1.0], **device_dtype_kwargs) + + return {"hidden_states": hidden_states, "encoder_hidden_states": encoder_hidden_states, "timestep": timestep} + + +if __name__ == "__main__": + scenarios = [ + BenchmarkScenario( + name=f"{CKPT_ID}-bf16", + model_cls=WanTransformer3DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=model_init_fn, + compile_kwargs={"fullgraph": True}, + ), + BenchmarkScenario( + name=f"{CKPT_ID}-layerwise-upcasting", + model_cls=WanTransformer3DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=partial(model_init_fn, layerwise_upcasting=True), + ), + BenchmarkScenario( + name=f"{CKPT_ID}-group-offload-leaf", + model_cls=WanTransformer3DModel, + model_init_kwargs={ + "pretrained_model_name_or_path": CKPT_ID, + "torch_dtype": torch.bfloat16, + "subfolder": "transformer", + }, + get_model_input_dict=partial(get_input_dict, device=torch_device, dtype=torch.bfloat16), + model_init_fn=partial( + model_init_fn, + group_offload_kwargs={ + "onload_device": torch_device, + "offload_device": torch.device("cpu"), + "offload_type": "leaf_level", + "use_stream": True, + "non_blocking": True, + }, + ), + ), + ] + + runner = BenchmarkMixin() + runner.run_bencmarks_and_collate(scenarios, filename=RESULT_FILENAME) diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/populate_into_db.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/populate_into_db.py new file mode 100644 index 0000000000000000000000000000000000000000..55e46b0586832f78adab51ba6f3d3acfb5fcd6ac --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/populate_into_db.py @@ -0,0 +1,166 @@ +import argparse +import os +import sys + +import gpustat +import pandas as pd +import psycopg2 +import psycopg2.extras +from psycopg2.extensions import register_adapter +from psycopg2.extras import Json + + +register_adapter(dict, Json) + +FINAL_CSV_FILENAME = "collated_results.csv" +# https://github.com/huggingface/transformers/blob/593e29c5e2a9b17baec010e8dc7c1431fed6e841/benchmark/init_db.sql#L27 +BENCHMARKS_TABLE_NAME = "benchmarks" +MEASUREMENTS_TABLE_NAME = "model_measurements" + + +def _init_benchmark(conn, branch, commit_id, commit_msg): + gpu_stats = gpustat.GPUStatCollection.new_query() + metadata = {"gpu_name": gpu_stats[0]["name"]} + repository = "huggingface/diffusers" + with conn.cursor() as cur: + cur.execute( + f"INSERT INTO {BENCHMARKS_TABLE_NAME} (repository, branch, commit_id, commit_message, metadata) VALUES (%s, %s, %s, %s, %s) RETURNING benchmark_id", + (repository, branch, commit_id, commit_msg, metadata), + ) + benchmark_id = cur.fetchone()[0] + print(f"Initialised benchmark #{benchmark_id}") + return benchmark_id + + +def parse_args(): + parser = argparse.ArgumentParser() + parser.add_argument( + "branch", + type=str, + help="The branch name on which the benchmarking is performed.", + ) + + parser.add_argument( + "commit_id", + type=str, + help="The commit hash on which the benchmarking is performed.", + ) + + parser.add_argument( + "commit_msg", + type=str, + help="The commit message associated with the commit, truncated to 70 characters.", + ) + args = parser.parse_args() + return args + + +if __name__ == "__main__": + args = parse_args() + try: + conn = psycopg2.connect( + host=os.getenv("PGHOST"), + database=os.getenv("PGDATABASE"), + user=os.getenv("PGUSER"), + password=os.getenv("PGPASSWORD"), + ) + print("DB connection established successfully.") + except Exception as e: + print(f"Problem during DB init: {e}") + sys.exit(1) + + try: + benchmark_id = _init_benchmark( + conn=conn, + branch=args.branch, + commit_id=args.commit_id, + commit_msg=args.commit_msg, + ) + except Exception as e: + print(f"Problem during initializing benchmark: {e}") + sys.exit(1) + + cur = conn.cursor() + + df = pd.read_csv(FINAL_CSV_FILENAME) + + # Helper to cast values (or None) given a dtype + def _cast_value(val, dtype: str): + if pd.isna(val): + return None + + if dtype == "text": + return str(val).strip() + + if dtype == "float": + try: + return float(val) + except ValueError: + return None + + if dtype == "bool": + s = str(val).strip().lower() + if s in ("true", "t", "yes", "1"): + return True + if s in ("false", "f", "no", "0"): + return False + if val in (1, 1.0): + return True + if val in (0, 0.0): + return False + return None + + return val + + try: + rows_to_insert = [] + for _, row in df.iterrows(): + scenario = _cast_value(row.get("scenario"), "text") + model_cls = _cast_value(row.get("model_cls"), "text") + num_params_B = _cast_value(row.get("num_params_B"), "float") + flops_G = _cast_value(row.get("flops_G"), "float") + time_plain_s = _cast_value(row.get("time_plain_s"), "float") + mem_plain_GB = _cast_value(row.get("mem_plain_GB"), "float") + time_compile_s = _cast_value(row.get("time_compile_s"), "float") + mem_compile_GB = _cast_value(row.get("mem_compile_GB"), "float") + fullgraph = _cast_value(row.get("fullgraph"), "bool") + mode = _cast_value(row.get("mode"), "text") + + # If "github_sha" column exists in the CSV, cast it; else default to None + if "github_sha" in df.columns: + github_sha = _cast_value(row.get("github_sha"), "text") + else: + github_sha = None + + measurements = { + "scenario": scenario, + "model_cls": model_cls, + "num_params_B": num_params_B, + "flops_G": flops_G, + "time_plain_s": time_plain_s, + "mem_plain_GB": mem_plain_GB, + "time_compile_s": time_compile_s, + "mem_compile_GB": mem_compile_GB, + "fullgraph": fullgraph, + "mode": mode, + "github_sha": github_sha, + } + rows_to_insert.append((benchmark_id, measurements)) + + # Batch-insert all rows + insert_sql = f""" + INSERT INTO {MEASUREMENTS_TABLE_NAME} ( + benchmark_id, + measurements + ) + VALUES (%s, %s); + """ + + psycopg2.extras.execute_batch(cur, insert_sql, rows_to_insert) + conn.commit() + + cur.close() + conn.close() + except Exception as e: + print(f"Exception: {e}") + sys.exit(1) diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/push_results.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/push_results.py new file mode 100644 index 0000000000000000000000000000000000000000..8be3b393683b6f60215ab6aa8d8132634e1e3ee2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/push_results.py @@ -0,0 +1,76 @@ +import os + +import pandas as pd +from huggingface_hub import hf_hub_download, upload_file +from huggingface_hub.utils import EntryNotFoundError + + +REPO_ID = "diffusers/benchmarks" + + +def has_previous_benchmark() -> str: + from run_all import FINAL_CSV_FILENAME + + csv_path = None + try: + csv_path = hf_hub_download(repo_id=REPO_ID, repo_type="dataset", filename=FINAL_CSV_FILENAME) + except EntryNotFoundError: + csv_path = None + return csv_path + + +def filter_float(value): + if isinstance(value, str): + return float(value.split()[0]) + return value + + +def push_to_hf_dataset(): + from run_all import FINAL_CSV_FILENAME, GITHUB_SHA + + csv_path = has_previous_benchmark() + if csv_path is not None: + current_results = pd.read_csv(FINAL_CSV_FILENAME) + previous_results = pd.read_csv(csv_path) + + numeric_columns = current_results.select_dtypes(include=["float64", "int64"]).columns + + for column in numeric_columns: + # get previous values as floats, aligned to current index + prev_vals = previous_results[column].map(filter_float).reindex(current_results.index) + + # get current values as floats + curr_vals = current_results[column].astype(float) + + # stringify the current values + curr_str = curr_vals.map(str) + + # build an appendage only when prev exists and differs + append_str = prev_vals.where(prev_vals.notnull() & (prev_vals != curr_vals), other=pd.NA).map( + lambda x: f" ({x})" if pd.notnull(x) else "" + ) + + # combine + current_results[column] = curr_str + append_str + os.remove(FINAL_CSV_FILENAME) + current_results.to_csv(FINAL_CSV_FILENAME, index=False) + + commit_message = f"upload from sha: {GITHUB_SHA}" if GITHUB_SHA is not None else "upload benchmark results" + upload_file( + repo_id=REPO_ID, + path_in_repo=FINAL_CSV_FILENAME, + path_or_fileobj=FINAL_CSV_FILENAME, + repo_type="dataset", + commit_message=commit_message, + ) + upload_file( + repo_id="diffusers/benchmark-analyzer", + path_in_repo=FINAL_CSV_FILENAME, + path_or_fileobj=FINAL_CSV_FILENAME, + repo_type="space", + commit_message=commit_message, + ) + + +if __name__ == "__main__": + push_to_hf_dataset() diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/requirements.txt b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/requirements.txt new file mode 100644 index 0000000000000000000000000000000000000000..1f47ecc6cafe4784604a67fa26a550fd6dfa87f1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/requirements.txt @@ -0,0 +1,6 @@ +pandas +psutil +gpustat +torchprofile +bitsandbytes +psycopg2==2.9.9 \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/run_all.py b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/run_all.py new file mode 100644 index 0000000000000000000000000000000000000000..9cf053f5480cec4727736f09093aae568a6091d2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/benchmarks/run_all.py @@ -0,0 +1,84 @@ +import glob +import logging +import os +import subprocess + +import pandas as pd + + +logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(name)s: %(message)s") +logger = logging.getLogger(__name__) + +PATTERN = "benchmarking_*.py" +FINAL_CSV_FILENAME = "collated_results.csv" +GITHUB_SHA = os.getenv("GITHUB_SHA", None) + + +class SubprocessCallException(Exception): + pass + + +def run_command(command: list[str], return_stdout=False): + try: + output = subprocess.check_output(command, stderr=subprocess.STDOUT) + if return_stdout and hasattr(output, "decode"): + return output.decode("utf-8") + except subprocess.CalledProcessError as e: + raise SubprocessCallException(f"Command `{' '.join(command)}` failed with:\n{e.output.decode()}") from e + + +def merge_csvs(final_csv: str = "collated_results.csv"): + all_csvs = glob.glob("*.csv") + all_csvs = [f for f in all_csvs if f != final_csv] + if not all_csvs: + logger.info("No result CSVs found to merge.") + return + + df_list = [] + for f in all_csvs: + try: + d = pd.read_csv(f) + except pd.errors.EmptyDataError: + # If a file existed but was zero‐bytes or corrupted, skip it + continue + df_list.append(d) + + if not df_list: + logger.info("All result CSVs were empty or invalid; nothing to merge.") + return + + final_df = pd.concat(df_list, ignore_index=True) + if GITHUB_SHA is not None: + final_df["github_sha"] = GITHUB_SHA + final_df.to_csv(final_csv, index=False) + logger.info(f"Merged {len(all_csvs)} partial CSVs → {final_csv}.") + + +def run_scripts(): + python_files = sorted(glob.glob(PATTERN)) + python_files = [f for f in python_files if f != "benchmarking_utils.py"] + + for file in python_files: + script_name = file.split(".py")[0].split("_")[-1] # example: benchmarking_foo.py -> foo + logger.info(f"\n****** Running file: {file} ******") + + partial_csv = f"{script_name}.csv" + if os.path.exists(partial_csv): + logger.info(f"Found {partial_csv}. Removing for safer numbers and duplication.") + os.remove(partial_csv) + + command = ["python", file] + try: + run_command(command) + logger.info(f"→ {file} finished normally.") + except SubprocessCallException as e: + logger.info(f"Error running {file}:\n{e}") + finally: + logger.info(f"→ Merging partial CSVs after {file} …") + merge_csvs(final_csv=FINAL_CSV_FILENAME) + + logger.info(f"\nAll scripts attempted. Final collated CSV: {FINAL_CSV_FILENAME}") + + +if __name__ == "__main__": + run_scripts() diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-doc-builder/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-doc-builder/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..0826901e907e399fafb3d7345786514568f05936 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-doc-builder/Dockerfile @@ -0,0 +1,45 @@ +FROM python:3.10-slim +ENV PYTHONDONTWRITEBYTECODE=1 +LABEL maintainer="Hugging Face" +LABEL repository="diffusers" + +ENV DEBIAN_FRONTEND=noninteractive + +RUN apt-get -y update && apt-get install -y bash \ + build-essential \ + git \ + git-lfs \ + curl \ + ca-certificates \ + libglib2.0-0 \ + libsndfile1-dev \ + libgl1 \ + zip \ + wget + +ENV UV_PYTHON=/usr/local/bin/python + +# pre-install the heavy dependencies (these can later be overridden by the deps from setup.py) +RUN pip install uv +RUN uv pip install --no-cache-dir \ + torch \ + torchvision \ + torchaudio \ + --extra-index-url https://download.pytorch.org/whl/cpu + +RUN uv pip install --no-cache-dir "git+https://github.com/huggingface/diffusers.git@main#egg=diffusers[test]" + +# Extra dependencies +RUN uv pip install --no-cache-dir \ + accelerate \ + numpy==1.26.4 \ + hf_xet \ + setuptools==69.5.1 \ + bitsandbytes \ + torchao \ + gguf \ + optimum-quanto + +RUN apt-get clean && rm -rf /var/lib/apt/lists/* && apt-get autoremove && apt-get autoclean + +CMD ["/bin/bash"] diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-onnxruntime-cpu/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-onnxruntime-cpu/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..7bcc6fb9f5ce8c3caffdb144d7bf111b32c14e85 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-onnxruntime-cpu/Dockerfile @@ -0,0 +1,49 @@ +FROM ubuntu:20.04 +LABEL maintainer="Hugging Face" +LABEL repository="diffusers" + +ENV DEBIAN_FRONTEND=noninteractive + +RUN apt-get -y update \ + && apt-get install -y software-properties-common \ + && add-apt-repository ppa:deadsnakes/ppa + +RUN apt install -y bash \ + build-essential \ + git \ + git-lfs \ + curl \ + ca-certificates \ + libsndfile1-dev \ + libgl1 \ + python3.10 \ + python3-pip \ + python3.10-venv && \ + rm -rf /var/lib/apt/lists + +# make sure to use venv +RUN python3.10 -m venv /opt/venv +ENV PATH="/opt/venv/bin:$PATH" + +# pre-install the heavy dependencies (these can later be overridden by the deps from setup.py) +RUN python3 -m pip install --no-cache-dir --upgrade pip uv==0.1.11 && \ + python3 -m uv pip install --no-cache-dir \ + torch \ + torchvision \ + torchaudio\ + onnxruntime \ + --extra-index-url https://download.pytorch.org/whl/cpu && \ + python3 -m uv pip install --no-cache-dir \ + accelerate \ + datasets \ + hf-doc-builder \ + huggingface-hub \ + Jinja2 \ + librosa \ + numpy==1.26.4 \ + scipy \ + tensorboard \ + transformers \ + hf_xet + +CMD ["/bin/bash"] \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-onnxruntime-cuda/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-onnxruntime-cuda/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..fd425d82c371afa80812d4a376dc6d002193356b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-onnxruntime-cuda/Dockerfile @@ -0,0 +1,49 @@ +FROM nvidia/cuda:12.1.0-runtime-ubuntu20.04 +LABEL maintainer="Hugging Face" +LABEL repository="diffusers" + +ENV DEBIAN_FRONTEND=noninteractive + +RUN apt-get -y update \ + && apt-get install -y software-properties-common \ + && add-apt-repository ppa:deadsnakes/ppa + +RUN apt install -y bash \ + build-essential \ + git \ + git-lfs \ + curl \ + ca-certificates \ + libsndfile1-dev \ + libgl1 \ + python3.10 \ + python3-pip \ + python3.10-venv && \ + rm -rf /var/lib/apt/lists + +# make sure to use venv +RUN python3.10 -m venv /opt/venv +ENV PATH="/opt/venv/bin:$PATH" + +# pre-install the heavy dependencies (these can later be overridden by the deps from setup.py) +RUN python3.10 -m pip install --no-cache-dir --upgrade pip uv==0.1.11 && \ + python3.10 -m uv pip install --no-cache-dir \ + torch \ + torchvision \ + torchaudio \ + "onnxruntime-gpu>=1.13.1" \ + --extra-index-url https://download.pytorch.org/whl/cu117 && \ + python3.10 -m uv pip install --no-cache-dir \ + accelerate \ + datasets \ + hf-doc-builder \ + huggingface-hub \ + hf_xet \ + Jinja2 \ + librosa \ + numpy==1.26.4 \ + scipy \ + tensorboard \ + transformers + +CMD ["/bin/bash"] \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-cpu/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-cpu/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..2db4ece8e2d7a02dfb0c5f7eb6604b6cc5c899ae --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-cpu/Dockerfile @@ -0,0 +1,38 @@ +FROM python:3.10-slim +ENV PYTHONDONTWRITEBYTECODE=1 +LABEL maintainer="Hugging Face" +LABEL repository="diffusers" + +ENV DEBIAN_FRONTEND=noninteractive + +RUN apt-get -y update && apt-get install -y bash \ + build-essential \ + git \ + git-lfs \ + curl \ + ca-certificates \ + libglib2.0-0 \ + libsndfile1-dev \ + libgl1 + +ENV UV_PYTHON=/usr/local/bin/python + +# pre-install the heavy dependencies (these can later be overridden by the deps from setup.py) +RUN pip install uv +RUN uv pip install --no-cache-dir \ + torch \ + torchvision \ + torchaudio \ + --extra-index-url https://download.pytorch.org/whl/cpu + +RUN uv pip install --no-cache-dir "git+https://github.com/huggingface/diffusers.git@main#egg=diffusers[test]" + +# Extra dependencies +RUN uv pip install --no-cache-dir \ + accelerate \ + numpy==1.26.4 \ + hf_xet + +RUN apt-get clean && rm -rf /var/lib/apt/lists/* && apt-get autoremove && apt-get autoclean + +CMD ["/bin/bash"] diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-cuda/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-cuda/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..a700d1db72bc2cf0b9cf4da0066ac0e28d3fe77e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-cuda/Dockerfile @@ -0,0 +1,49 @@ +FROM nvidia/cuda:12.1.0-runtime-ubuntu20.04 +LABEL maintainer="Hugging Face" +LABEL repository="diffusers" + +ARG PYTHON_VERSION=3.12 +ENV DEBIAN_FRONTEND=noninteractive + +RUN apt-get -y update \ + && apt-get install -y software-properties-common \ + && add-apt-repository ppa:deadsnakes/ppa && \ + apt-get update + +RUN apt install -y bash \ + build-essential \ + git \ + git-lfs \ + curl \ + ca-certificates \ + libglib2.0-0 \ + libsndfile1-dev \ + libgl1 \ + python3 \ + python3-pip \ + && apt-get clean \ + && rm -rf /var/lib/apt/lists/* + +RUN curl -LsSf https://astral.sh/uv/install.sh | sh +ENV PATH="/root/.local/bin:$PATH" +ENV VIRTUAL_ENV="/opt/venv" +ENV UV_PYTHON_INSTALL_DIR=/opt/uv/python +RUN uv venv --python ${PYTHON_VERSION} --seed ${VIRTUAL_ENV} +ENV PATH="$VIRTUAL_ENV/bin:$PATH" + +# pre-install the heavy dependencies (these can later be overridden by the deps from setup.py) +RUN uv pip install --no-cache-dir \ + torch \ + torchvision \ + torchaudio + +RUN uv pip install --no-cache-dir "git+https://github.com/huggingface/diffusers.git@main#egg=diffusers[test]" + +# Extra dependencies +RUN uv pip install --no-cache-dir \ + accelerate \ + numpy==1.26.4 \ + pytorch-lightning \ + hf_xet + +CMD ["/bin/bash"] diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-minimum-cuda/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-minimum-cuda/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..00d077c5da60cf4a8d1a0d836d9c819faa73ef9d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-minimum-cuda/Dockerfile @@ -0,0 +1,52 @@ +FROM nvidia/cuda:12.1.0-runtime-ubuntu20.04 +LABEL maintainer="Hugging Face" +LABEL repository="diffusers" + +ARG PYTHON_VERSION=3.10 +ENV DEBIAN_FRONTEND=noninteractive +ENV MINIMUM_SUPPORTED_TORCH_VERSION="2.1.0" +ENV MINIMUM_SUPPORTED_TORCHVISION_VERSION="0.16.0" +ENV MINIMUM_SUPPORTED_TORCHAUDIO_VERSION="2.1.0" + +RUN apt-get -y update \ + && apt-get install -y software-properties-common \ + && add-apt-repository ppa:deadsnakes/ppa && \ + apt-get update + +RUN apt install -y bash \ + build-essential \ + git \ + git-lfs \ + curl \ + ca-certificates \ + libglib2.0-0 \ + libsndfile1-dev \ + libgl1 \ + python3 \ + python3-pip \ + && apt-get clean \ + && rm -rf /var/lib/apt/lists/* + +RUN curl -LsSf https://astral.sh/uv/install.sh | sh +ENV PATH="/root/.local/bin:$PATH" +ENV VIRTUAL_ENV="/opt/venv" +ENV UV_PYTHON_INSTALL_DIR=/opt/uv/python +RUN uv venv --python ${PYTHON_VERSION} --seed ${VIRTUAL_ENV} +ENV PATH="$VIRTUAL_ENV/bin:$PATH" + +# pre-install the heavy dependencies (these can later be overridden by the deps from setup.py) +RUN uv pip install --no-cache-dir \ + torch==$MINIMUM_SUPPORTED_TORCH_VERSION \ + torchvision==$MINIMUM_SUPPORTED_TORCHVISION_VERSION \ + torchaudio==$MINIMUM_SUPPORTED_TORCHAUDIO_VERSION + +RUN uv pip install --no-cache-dir "git+https://github.com/huggingface/diffusers.git@main#egg=diffusers[test]" + +# Extra dependencies +RUN uv pip install --no-cache-dir \ + accelerate \ + numpy==1.26.4 \ + pytorch-lightning \ + hf_xet + +CMD ["/bin/bash"] diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-xformers-cuda/Dockerfile b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-xformers-cuda/Dockerfile new file mode 100644 index 0000000000000000000000000000000000000000..eae7eaf4faf12edf41a7aa43218697edc3b92fd3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docker/diffusers-pytorch-xformers-cuda/Dockerfile @@ -0,0 +1,50 @@ +FROM nvidia/cuda:12.1.0-runtime-ubuntu20.04 +LABEL maintainer="Hugging Face" +LABEL repository="diffusers" + +ARG PYTHON_VERSION=3.12 +ENV DEBIAN_FRONTEND=noninteractive + +RUN apt-get -y update \ + && apt-get install -y software-properties-common \ + && add-apt-repository ppa:deadsnakes/ppa && \ + apt-get update + +RUN apt install -y bash \ + build-essential \ + git \ + git-lfs \ + curl \ + ca-certificates \ + libglib2.0-0 \ + libsndfile1-dev \ + libgl1 \ + python3 \ + python3-pip \ + && apt-get clean \ + && rm -rf /var/lib/apt/lists/* + +RUN curl -LsSf https://astral.sh/uv/install.sh | sh +ENV PATH="/root/.local/bin:$PATH" +ENV VIRTUAL_ENV="/opt/venv" +ENV UV_PYTHON_INSTALL_DIR=/opt/uv/python +RUN uv venv --python ${PYTHON_VERSION} --seed ${VIRTUAL_ENV} +ENV PATH="$VIRTUAL_ENV/bin:$PATH" + +# pre-install the heavy dependencies (these can later be overridden by the deps from setup.py) +RUN uv pip install --no-cache-dir \ + torch \ + torchvision \ + torchaudio + +RUN uv pip install --no-cache-dir "git+https://github.com/huggingface/diffusers.git@main#egg=diffusers[test]" + +# Extra dependencies +RUN uv pip install --no-cache-dir \ + accelerate \ + numpy==1.26.4 \ + pytorch-lightning \ + hf_xet \ + xformers + +CMD ["/bin/bash"] diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/README.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/README.md new file mode 100644 index 0000000000000000000000000000000000000000..f36b76fb07891cc556db8ac30633abcea01c4a41 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/README.md @@ -0,0 +1,268 @@ + + +# Generating the documentation + +To generate the documentation, you first have to build it. Several packages are necessary to build the doc, +you can install them with the following command, at the root of the code repository: + +```bash +pip install -e ".[docs]" +``` + +Then you need to install our open source documentation builder tool: + +```bash +pip install git+https://github.com/huggingface/doc-builder +``` + +--- +**NOTE** + +You only need to generate the documentation to inspect it locally (if you're planning changes and want to +check how they look before committing for instance). You don't have to commit the built documentation. + +--- + +## Previewing the documentation + +To preview the docs, first install the `watchdog` module with: + +```bash +pip install watchdog +``` + +Then run the following command: + +```bash +doc-builder preview {package_name} {path_to_docs} +``` + +For example: + +```bash +doc-builder preview diffusers docs/source/en +``` + +The docs will be viewable at [http://localhost:3000](http://localhost:3000). You can also preview the docs once you have opened a PR. You will see a bot add a comment to a link where the documentation with your changes lives. + +--- +**NOTE** + +The `preview` command only works with existing doc files. When you add a completely new file, you need to update `_toctree.yml` & restart `preview` command (`ctrl-c` to stop it & call `doc-builder preview ...` again). + +--- + +## Adding a new element to the navigation bar + +Accepted files are Markdown (.md). + +Create a file with its extension and put it in the source directory. You can then link it to the toc-tree by putting +the filename without the extension in the [`_toctree.yml`](https://github.com/huggingface/diffusers/blob/main/docs/source/en/_toctree.yml) file. + +## Renaming section headers and moving sections + +It helps to keep the old links working when renaming the section header and/or moving sections from one document to another. This is because the old links are likely to be used in Issues, Forums, and Social media and it'd make for a much more superior user experience if users reading those months later could still easily navigate to the originally intended information. + +Therefore, we simply keep a little map of moved sections at the end of the document where the original section was. The key is to preserve the original anchor. + +So if you renamed a section from: "Section A" to "Section B", then you can add at the end of the file: + +```md +Sections that were moved: + +[ Section A ] +``` +and of course, if you moved it to another file, then: + +```md +Sections that were moved: + +[ Section A ] +``` + +Use the relative style to link to the new file so that the versioned docs continue to work. + +For an example of a rich moved section set please see the very end of [the transformers Trainer doc](https://github.com/huggingface/transformers/blob/main/docs/source/en/main_classes/trainer.md). + + +## Writing Documentation - Specification + +The `huggingface/diffusers` documentation follows the +[Google documentation](https://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html) style for docstrings, +although we can write them directly in Markdown. + +### Adding a new tutorial + +Adding a new tutorial or section is done in two steps: + +- Add a new Markdown (.md) file under `docs/source/`. +- Link that file in `docs/source//_toctree.yml` on the correct toc-tree. + +Make sure to put your new file under the proper section. It's unlikely to go in the first section (*Get Started*), so +depending on the intended targets (beginners, more advanced users, or researchers) it should go in sections two, three, or four. + +### Adding a new pipeline/scheduler + +When adding a new pipeline: + +- Create a file `xxx.md` under `docs/source//api/pipelines` (don't hesitate to copy an existing file as template). +- Link that file in (*Diffusers Summary*) section in `docs/source/api/pipelines/overview.md`, along with the link to the paper, and a colab notebook (if available). +- Write a short overview of the diffusion model: + - Overview with paper & authors + - Paper abstract + - Tips and tricks and how to use it best + - Possible an end-to-end example of how to use it +- Add all the pipeline classes that should be linked in the diffusion model. These classes should be added using our Markdown syntax. By default as follows: + +``` +[[autodoc]] XXXPipeline + - all + - __call__ +``` + +This will include every public method of the pipeline that is documented, as well as the `__call__` method that is not documented by default. If you just want to add additional methods that are not documented, you can put the list of all methods to add in a list that contains `all`. + +``` +[[autodoc]] XXXPipeline + - all + - __call__ + - enable_attention_slicing + - disable_attention_slicing + - enable_xformers_memory_efficient_attention + - disable_xformers_memory_efficient_attention +``` + +You can follow the same process to create a new scheduler under the `docs/source//api/schedulers` folder. + +### Writing source documentation + +Values that should be put in `code` should either be surrounded by backticks: \`like so\`. Note that argument names +and objects like True, None, or any strings should usually be put in `code`. + +When mentioning a class, function, or method, it is recommended to use our syntax for internal links so that our tool +adds a link to its documentation with this syntax: \[\`XXXClass\`\] or \[\`function\`\]. This requires the class or +function to be in the main package. + +If you want to create a link to some internal class or function, you need to +provide its path. For instance: \[\`pipelines.ImagePipelineOutput\`\]. This will be converted into a link with +`pipelines.ImagePipelineOutput` in the description. To get rid of the path and only keep the name of the object you are +linking to in the description, add a ~: \[\`~pipelines.ImagePipelineOutput\`\] will generate a link with `ImagePipelineOutput` in the description. + +The same works for methods so you can either use \[\`XXXClass.method\`\] or \[\`~XXXClass.method\`\]. + +#### Defining arguments in a method + +Arguments should be defined with the `Args:` (or `Arguments:` or `Parameters:`) prefix, followed by a line return and +an indentation. The argument should be followed by its type, with its shape if it is a tensor, a colon, and its +description: + +``` + Args: + n_layers (`int`): The number of layers of the model. +``` + +If the description is too long to fit in one line, another indentation is necessary before writing the description +after the argument. + +Here's an example showcasing everything so far: + +``` + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`): + Indices of input sequence tokens in the vocabulary. + + Indices can be obtained using [`AlbertTokenizer`]. See [`~PreTrainedTokenizer.encode`] and + [`~PreTrainedTokenizer.__call__`] for details. + + [What are input IDs?](../glossary#input-ids) +``` + +For optional arguments or arguments with defaults we follow the following syntax: imagine we have a function with the +following signature: + +```py +def my_function(x: str=None, a: float=3.14): +``` + +then its documentation should look like this: + +``` + Args: + x (`str`, *optional*): + This argument controls ... + a (`float`, *optional*, defaults to `3.14`): + This argument is used to ... +``` + +Note that we always omit the "defaults to \`None\`" when None is the default for any argument. Also note that even +if the first line describing your argument type and its default gets long, you can't break it on several lines. You can +however write as many lines as you want in the indented description (see the example above with `input_ids`). + +#### Writing a multi-line code block + +Multi-line code blocks can be useful for displaying examples. They are done between two lines of three backticks as usual in Markdown: + + +```` +``` +# first line of code +# second line +# etc +``` +```` + +#### Writing a return block + +The return block should be introduced with the `Returns:` prefix, followed by a line return and an indentation. +The first line should be the type of the return, followed by a line return. No need to indent further for the elements +building the return. + +Here's an example of a single value return: + +``` + Returns: + `List[int]`: A list of integers in the range [0, 1] --- 1 for a special token, 0 for a sequence token. +``` + +Here's an example of a tuple return, comprising several objects: + +``` + Returns: + `tuple(torch.Tensor)` comprising various elements depending on the configuration ([`BertConfig`]) and inputs: + - ** loss** (*optional*, returned when `masked_lm_labels` is provided) `torch.Tensor` of shape `(1,)` -- + Total loss is the sum of the masked language modeling loss and the next sequence prediction (classification) loss. + - **prediction_scores** (`torch.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`) -- + Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax). +``` + +#### Adding an image + +Due to the rapidly growing repository, it is important to make sure that no files that would significantly weigh down the repository are added. This includes images, videos, and other non-text files. We prefer to leverage a hf.co hosted `dataset` like +the ones hosted on [`hf-internal-testing`](https://huggingface.co/hf-internal-testing) in which to place these files and reference +them by URL. We recommend putting them in the following dataset: [huggingface/documentation-images](https://huggingface.co/datasets/huggingface/documentation-images). +If an external contribution, feel free to add the images to your PR and ask a Hugging Face member to migrate your images +to this dataset. + +## Styling the docstring + +We have an automatic script running with the `make style` command that will make sure that: +- the docstrings fully take advantage of the line width +- all code examples are formatted using black, like the code of the Transformers library + +This script may have some weird failures if you made a syntax mistake or if you uncover a bug. Therefore, it's +recommended to commit your changes before running `make style`, so you can revert the changes done by that script +easily. diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/TRANSLATING.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/TRANSLATING.md new file mode 100644 index 0000000000000000000000000000000000000000..7f8e49b2fea2f45c3ceb0ec79dfadec86003838f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/TRANSLATING.md @@ -0,0 +1,69 @@ + + +### Translating the Diffusers documentation into your language + +As part of our mission to democratize machine learning, we'd love to make the Diffusers library available in many more languages! Follow the steps below if you want to help translate the documentation into your language 🙏. + +**🗞️ Open an issue** + +To get started, navigate to the [Issues](https://github.com/huggingface/diffusers/issues) page of this repo and check if anyone else has opened an issue for your language. If not, open a new issue by selecting the "🌐 Translating a New Language?" from the "New issue" button. + +Once an issue exists, post a comment to indicate which chapters you'd like to work on, and we'll add your name to the list. + + +**🍴 Fork the repository** + +First, you'll need to [fork the Diffusers repo](https://docs.github.com/en/get-started/quickstart/fork-a-repo). You can do this by clicking on the **Fork** button on the top-right corner of this repo's page. + +Once you've forked the repo, you'll want to get the files on your local machine for editing. You can do that by cloning the fork with Git as follows: + +```bash +git clone https://github.com//diffusers.git +``` + +**📋 Copy-paste the English version with a new language code** + +The documentation files are in one leading directory: + +- [`docs/source`](https://github.com/huggingface/diffusers/tree/main/docs/source): All the documentation materials are organized here by language. + +You'll only need to copy the files in the [`docs/source/en`](https://github.com/huggingface/diffusers/tree/main/docs/source/en) directory, so first navigate to your fork of the repo and run the following: + +```bash +cd ~/path/to/diffusers/docs +cp -r source/en source/ +``` + +Here, `` should be one of the ISO 639-1 or ISO 639-2 language codes -- see [here](https://www.loc.gov/standards/iso639-2/php/code_list.php) for a handy table. + +**✍️ Start translating** + +The fun part comes - translating the text! + +The first thing we recommend is translating the part of the `_toctree.yml` file that corresponds to your doc chapter. This file is used to render the table of contents on the website. + +> 🙋 If the `_toctree.yml` file doesn't yet exist for your language, you can create one by copy-pasting from the English version and deleting the sections unrelated to your chapter. Just make sure it exists in the `docs/source//` directory! + +The fields you should add are `local` (with the name of the file containing the translation; e.g. `autoclass_tutorial`), and `title` (with the title of the doc in your language; e.g. `Load pretrained instances with an AutoClass`) -- as a reference, here is the `_toctree.yml` for [English](https://github.com/huggingface/diffusers/blob/main/docs/source/en/_toctree.yml): + +```yaml +- sections: + - local: pipeline_tutorial # Do not change this! Use the same name for your .md file + title: Pipelines for inference # Translate this! + ... + title: Tutorials # Translate this! +``` + +Once you have translated the `_toctree.yml` file, you can start translating the [MDX](https://mdxjs.com/) files associated with your docs chapter. + +> 🙋 If you'd like others to help you with the translation, you should [open an issue](https://github.com/huggingface/diffusers/issues) and tag @patrickvonplaten. diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/_config.py b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/_config.py new file mode 100644 index 0000000000000000000000000000000000000000..3d0d73dcb951ea5b8b91e255d79b893a2a103ed3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/_config.py @@ -0,0 +1,9 @@ +# docstyle-ignore +INSTALL_CONTENT = """ +# Diffusers installation +! pip install diffusers transformers datasets accelerate +# To install from source instead of the last release, comment the command above and uncomment the following one. +# ! pip install git+https://github.com/huggingface/diffusers.git +""" + +notebook_first_cells = [{"type": "code", "content": INSTALL_CONTENT}] diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/_toctree.yml b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/_toctree.yml new file mode 100644 index 0000000000000000000000000000000000000000..24420af8e490ec975b3f9dbefd82a5a8dc915a9b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/_toctree.yml @@ -0,0 +1,763 @@ +- sections: + - local: index + title: Diffusers + - local: installation + title: Installation + - local: quicktour + title: Quickstart + - local: stable_diffusion + title: Basic performance + title: Get started +- isExpanded: false + sections: + - local: using-diffusers/loading + title: DiffusionPipeline + - local: tutorials/autopipeline + title: AutoPipeline + - local: using-diffusers/custom_pipeline_overview + title: Community pipelines and components + - local: using-diffusers/callback + title: Pipeline callbacks + - local: using-diffusers/reusing_seeds + title: Reproducibility + - local: using-diffusers/schedulers + title: Schedulers + - local: using-diffusers/automodel + title: AutoModel + - local: using-diffusers/other-formats + title: Model formats + - local: using-diffusers/push_to_hub + title: Sharing pipelines and models + title: Pipelines +- isExpanded: false + sections: + - local: tutorials/using_peft_for_inference + title: LoRA + - local: using-diffusers/ip_adapter + title: IP-Adapter + - local: using-diffusers/controlnet + title: ControlNet + - local: using-diffusers/t2i_adapter + title: T2I-Adapter + - local: using-diffusers/dreambooth + title: DreamBooth + - local: using-diffusers/textual_inversion_inference + title: Textual inversion + title: Adapters +- isExpanded: false + sections: + - local: using-diffusers/weighted_prompts + title: Prompting + - local: using-diffusers/create_a_server + title: Create a server + - local: using-diffusers/batched_inference + title: Batch inference + - local: training/distributed_inference + title: Distributed inference + title: Inference +- isExpanded: false + sections: + - local: optimization/fp16 + title: Accelerate inference + - local: optimization/cache + title: Caching + - local: optimization/attention_backends + title: Attention backends + - local: optimization/memory + title: Reduce memory usage + - local: optimization/speed-memory-optims + title: Compiling and offloading quantized models + - sections: + - local: optimization/pruna + title: Pruna + - local: optimization/xformers + title: xFormers + - local: optimization/tome + title: Token merging + - local: optimization/deepcache + title: DeepCache + - local: optimization/cache_dit + title: CacheDiT + - local: optimization/tgate + title: TGATE + - local: optimization/xdit + title: xDiT + - local: optimization/para_attn + title: ParaAttention + - local: using-diffusers/image_quality + title: FreeU + title: Community optimizations + title: Inference optimization +- isExpanded: false + sections: + - local: hybrid_inference/overview + title: Overview + - local: hybrid_inference/vae_decode + title: VAE Decode + - local: hybrid_inference/vae_encode + title: VAE Encode + - local: hybrid_inference/api_reference + title: API Reference + title: Hybrid Inference +- isExpanded: false + sections: + - local: modular_diffusers/overview + title: Overview + - local: modular_diffusers/quickstart + title: Quickstart + - local: modular_diffusers/modular_diffusers_states + title: States + - local: modular_diffusers/pipeline_block + title: ModularPipelineBlocks + - local: modular_diffusers/sequential_pipeline_blocks + title: SequentialPipelineBlocks + - local: modular_diffusers/loop_sequential_pipeline_blocks + title: LoopSequentialPipelineBlocks + - local: modular_diffusers/auto_pipeline_blocks + title: AutoPipelineBlocks + - local: modular_diffusers/modular_pipeline + title: ModularPipeline + - local: modular_diffusers/components_manager + title: ComponentsManager + - local: modular_diffusers/guiders + title: Guiders + - local: modular_diffusers/custom_blocks + title: Building Custom Blocks + title: Modular Diffusers +- isExpanded: false + sections: + - local: training/overview + title: Overview + - local: training/create_dataset + title: Create a dataset for training + - local: training/adapt_a_model + title: Adapt a model to a new task + - local: tutorials/basic_training + title: Train a diffusion model + - sections: + - local: training/unconditional_training + title: Unconditional image generation + - local: training/text2image + title: Text-to-image + - local: training/sdxl + title: Stable Diffusion XL + - local: training/kandinsky + title: Kandinsky 2.2 + - local: training/wuerstchen + title: Wuerstchen + - local: training/controlnet + title: ControlNet + - local: training/t2i_adapters + title: T2I-Adapters + - local: training/instructpix2pix + title: InstructPix2Pix + - local: training/cogvideox + title: CogVideoX + title: Models + - sections: + - local: training/text_inversion + title: Textual Inversion + - local: training/dreambooth + title: DreamBooth + - local: training/lora + title: LoRA + - local: training/custom_diffusion + title: Custom Diffusion + - local: training/lcm_distill + title: Latent Consistency Distillation + - local: training/ddpo + title: Reinforcement learning training with DDPO + title: Methods + title: Training +- isExpanded: false + sections: + - local: quantization/overview + title: Getting started + - local: quantization/bitsandbytes + title: bitsandbytes + - local: quantization/gguf + title: gguf + - local: quantization/torchao + title: torchao + - local: quantization/quanto + title: quanto + - local: quantization/modelopt + title: NVIDIA ModelOpt + title: Quantization +- isExpanded: false + sections: + - local: optimization/onnx + title: ONNX + - local: optimization/open_vino + title: OpenVINO + - local: optimization/coreml + title: Core ML + - local: optimization/mps + title: Metal Performance Shaders (MPS) + - local: optimization/habana + title: Intel Gaudi + - local: optimization/neuron + title: AWS Neuron + title: Model accelerators and hardware +- isExpanded: false + sections: + - local: using-diffusers/consisid + title: ConsisID + - local: using-diffusers/sdxl + title: Stable Diffusion XL + - local: using-diffusers/sdxl_turbo + title: SDXL Turbo + - local: using-diffusers/kandinsky + title: Kandinsky + - local: using-diffusers/omnigen + title: OmniGen + - local: using-diffusers/pag + title: PAG + - local: using-diffusers/inference_with_lcm + title: Latent Consistency Model + - local: using-diffusers/shap-e + title: Shap-E + - local: using-diffusers/diffedit + title: DiffEdit + - local: using-diffusers/inference_with_tcd_lora + title: Trajectory Consistency Distillation-LoRA + - local: using-diffusers/svd + title: Stable Video Diffusion + - local: using-diffusers/marigold_usage + title: Marigold Computer Vision + title: Specific pipeline examples +- isExpanded: false + sections: + - sections: + - local: using-diffusers/unconditional_image_generation + title: Unconditional image generation + - local: using-diffusers/conditional_image_generation + title: Text-to-image + - local: using-diffusers/img2img + title: Image-to-image + - local: using-diffusers/inpaint + title: Inpainting + - local: advanced_inference/outpaint + title: Outpainting + - local: using-diffusers/text-img2vid + title: Video generation + - local: using-diffusers/depth2img + title: Depth-to-image + title: Task recipes + - local: using-diffusers/write_own_pipeline + title: Understanding pipelines, models and schedulers + - local: community_projects + title: Projects built with Diffusers + - local: conceptual/philosophy + title: Philosophy + - local: using-diffusers/controlling_generation + title: Controlled generation + - local: conceptual/contribution + title: How to contribute? + - local: conceptual/ethical_guidelines + title: Diffusers' Ethical Guidelines + - local: conceptual/evaluation + title: Evaluating Diffusion Models + title: Resources +- isExpanded: false + sections: + - sections: + - local: api/configuration + title: Configuration + - local: api/logging + title: Logging + - local: api/outputs + title: Outputs + - local: api/quantization + title: Quantization + - local: api/parallel + title: Parallel inference + title: Main Classes + - sections: + - local: api/modular_diffusers/pipeline + title: Pipeline + - local: api/modular_diffusers/pipeline_blocks + title: Blocks + - local: api/modular_diffusers/pipeline_states + title: States + - local: api/modular_diffusers/pipeline_components + title: Components and configs + - local: api/modular_diffusers/guiders + title: Guiders + title: Modular + - sections: + - local: api/loaders/ip_adapter + title: IP-Adapter + - local: api/loaders/lora + title: LoRA + - local: api/loaders/single_file + title: Single files + - local: api/loaders/textual_inversion + title: Textual Inversion + - local: api/loaders/unet + title: UNet + - local: api/loaders/transformer_sd3 + title: SD3Transformer2D + - local: api/loaders/peft + title: PEFT + title: Loaders + - sections: + - local: api/models/overview + title: Overview + - local: api/models/auto_model + title: AutoModel + - sections: + - local: api/models/controlnet + title: ControlNetModel + - local: api/models/controlnet_union + title: ControlNetUnionModel + - local: api/models/controlnet_flux + title: FluxControlNetModel + - local: api/models/controlnet_hunyuandit + title: HunyuanDiT2DControlNetModel + - local: api/models/controlnet_sana + title: SanaControlNetModel + - local: api/models/controlnet_sd3 + title: SD3ControlNetModel + - local: api/models/controlnet_sparsectrl + title: SparseControlNetModel + title: ControlNets + - sections: + - local: api/models/allegro_transformer3d + title: AllegroTransformer3DModel + - local: api/models/aura_flow_transformer2d + title: AuraFlowTransformer2DModel + - local: api/models/transformer_bria_fibo + title: BriaFiboTransformer2DModel + - local: api/models/bria_transformer + title: BriaTransformer2DModel + - local: api/models/chroma_transformer + title: ChromaTransformer2DModel + - local: api/models/chronoedit_transformer_3d + title: ChronoEditTransformer3DModel + - local: api/models/cogvideox_transformer3d + title: CogVideoXTransformer3DModel + - local: api/models/cogview3plus_transformer2d + title: CogView3PlusTransformer2DModel + - local: api/models/cogview4_transformer2d + title: CogView4Transformer2DModel + - local: api/models/consisid_transformer3d + title: ConsisIDTransformer3DModel + - local: api/models/cosmos_transformer3d + title: CosmosTransformer3DModel + - local: api/models/dit_transformer2d + title: DiTTransformer2DModel + - local: api/models/easyanimate_transformer3d + title: EasyAnimateTransformer3DModel + - local: api/models/flux_transformer + title: FluxTransformer2DModel + - local: api/models/hidream_image_transformer + title: HiDreamImageTransformer2DModel + - local: api/models/hunyuan_transformer2d + title: HunyuanDiT2DModel + - local: api/models/hunyuanimage_transformer_2d + title: HunyuanImageTransformer2DModel + - local: api/models/hunyuan_video_transformer_3d + title: HunyuanVideoTransformer3DModel + - local: api/models/latte_transformer3d + title: LatteTransformer3DModel + - local: api/models/ltx_video_transformer3d + title: LTXVideoTransformer3DModel + - local: api/models/lumina2_transformer2d + title: Lumina2Transformer2DModel + - local: api/models/lumina_nextdit2d + title: LuminaNextDiT2DModel + - local: api/models/mochi_transformer3d + title: MochiTransformer3DModel + - local: api/models/omnigen_transformer + title: OmniGenTransformer2DModel + - local: api/models/pixart_transformer2d + title: PixArtTransformer2DModel + - local: api/models/prior_transformer + title: PriorTransformer + - local: api/models/qwenimage_transformer2d + title: QwenImageTransformer2DModel + - local: api/models/sana_transformer2d + title: SanaTransformer2DModel + - local: api/models/sana_video_transformer3d + title: SanaVideoTransformer3DModel + - local: api/models/sd3_transformer2d + title: SD3Transformer2DModel + - local: api/models/skyreels_v2_transformer_3d + title: SkyReelsV2Transformer3DModel + - local: api/models/stable_audio_transformer + title: StableAudioDiTModel + - local: api/models/transformer2d + title: Transformer2DModel + - local: api/models/transformer_temporal + title: TransformerTemporalModel + - local: api/models/wan_animate_transformer_3d + title: WanAnimateTransformer3DModel + - local: api/models/wan_transformer_3d + title: WanTransformer3DModel + title: Transformers + - sections: + - local: api/models/stable_cascade_unet + title: StableCascadeUNet + - local: api/models/unet + title: UNet1DModel + - local: api/models/unet2d-cond + title: UNet2DConditionModel + - local: api/models/unet2d + title: UNet2DModel + - local: api/models/unet3d-cond + title: UNet3DConditionModel + - local: api/models/unet-motion + title: UNetMotionModel + - local: api/models/uvit2d + title: UViT2DModel + title: UNets + - sections: + - local: api/models/asymmetricautoencoderkl + title: AsymmetricAutoencoderKL + - local: api/models/autoencoder_dc + title: AutoencoderDC + - local: api/models/autoencoderkl + title: AutoencoderKL + - local: api/models/autoencoderkl_allegro + title: AutoencoderKLAllegro + - local: api/models/autoencoderkl_cogvideox + title: AutoencoderKLCogVideoX + - local: api/models/autoencoderkl_cosmos + title: AutoencoderKLCosmos + - local: api/models/autoencoder_kl_hunyuanimage + title: AutoencoderKLHunyuanImage + - local: api/models/autoencoder_kl_hunyuanimage_refiner + title: AutoencoderKLHunyuanImageRefiner + - local: api/models/autoencoder_kl_hunyuan_video + title: AutoencoderKLHunyuanVideo + - local: api/models/autoencoderkl_ltx_video + title: AutoencoderKLLTXVideo + - local: api/models/autoencoderkl_magvit + title: AutoencoderKLMagvit + - local: api/models/autoencoderkl_mochi + title: AutoencoderKLMochi + - local: api/models/autoencoderkl_qwenimage + title: AutoencoderKLQwenImage + - local: api/models/autoencoder_kl_wan + title: AutoencoderKLWan + - local: api/models/consistency_decoder_vae + title: ConsistencyDecoderVAE + - local: api/models/autoencoder_oobleck + title: Oobleck AutoEncoder + - local: api/models/autoencoder_tiny + title: Tiny AutoEncoder + - local: api/models/vq + title: VQModel + title: VAEs + title: Models + - sections: + - local: api/pipelines/overview + title: Overview + - local: api/pipelines/auto_pipeline + title: AutoPipeline + - sections: + - local: api/pipelines/audioldm + title: AudioLDM + - local: api/pipelines/audioldm2 + title: AudioLDM 2 + - local: api/pipelines/dance_diffusion + title: Dance Diffusion + - local: api/pipelines/musicldm + title: MusicLDM + - local: api/pipelines/stable_audio + title: Stable Audio + title: Audio + - sections: + - local: api/pipelines/amused + title: aMUSEd + - local: api/pipelines/animatediff + title: AnimateDiff + - local: api/pipelines/attend_and_excite + title: Attend-and-Excite + - local: api/pipelines/aura_flow + title: AuraFlow + - local: api/pipelines/blip_diffusion + title: BLIP-Diffusion + - local: api/pipelines/bria_3_2 + title: Bria 3.2 + - local: api/pipelines/bria_fibo + title: Bria Fibo + - local: api/pipelines/chroma + title: Chroma + - local: api/pipelines/cogview3 + title: CogView3 + - local: api/pipelines/cogview4 + title: CogView4 + - local: api/pipelines/consistency_models + title: Consistency Models + - local: api/pipelines/controlnet + title: ControlNet + - local: api/pipelines/controlnet_flux + title: ControlNet with Flux.1 + - local: api/pipelines/controlnet_hunyuandit + title: ControlNet with Hunyuan-DiT + - local: api/pipelines/controlnet_sd3 + title: ControlNet with Stable Diffusion 3 + - local: api/pipelines/controlnet_sdxl + title: ControlNet with Stable Diffusion XL + - local: api/pipelines/controlnet_sana + title: ControlNet-Sana + - local: api/pipelines/controlnetxs + title: ControlNet-XS + - local: api/pipelines/controlnetxs_sdxl + title: ControlNet-XS with Stable Diffusion XL + - local: api/pipelines/controlnet_union + title: ControlNetUnion + - local: api/pipelines/cosmos + title: Cosmos + - local: api/pipelines/ddim + title: DDIM + - local: api/pipelines/ddpm + title: DDPM + - local: api/pipelines/deepfloyd_if + title: DeepFloyd IF + - local: api/pipelines/diffedit + title: DiffEdit + - local: api/pipelines/dit + title: DiT + - local: api/pipelines/easyanimate + title: EasyAnimate + - local: api/pipelines/flux + title: Flux + - local: api/pipelines/control_flux_inpaint + title: FluxControlInpaint + - local: api/pipelines/hidream + title: HiDream-I1 + - local: api/pipelines/hunyuandit + title: Hunyuan-DiT + - local: api/pipelines/hunyuanimage21 + title: HunyuanImage2.1 + - local: api/pipelines/pix2pix + title: InstructPix2Pix + - local: api/pipelines/kandinsky + title: Kandinsky 2.1 + - local: api/pipelines/kandinsky_v22 + title: Kandinsky 2.2 + - local: api/pipelines/kandinsky3 + title: Kandinsky 3 + - local: api/pipelines/kolors + title: Kolors + - local: api/pipelines/latent_consistency_models + title: Latent Consistency Models + - local: api/pipelines/latent_diffusion + title: Latent Diffusion + - local: api/pipelines/ledits_pp + title: LEDITS++ + - local: api/pipelines/lumina2 + title: Lumina 2.0 + - local: api/pipelines/lumina + title: Lumina-T2X + - local: api/pipelines/marigold + title: Marigold + - local: api/pipelines/panorama + title: MultiDiffusion + - local: api/pipelines/omnigen + title: OmniGen + - local: api/pipelines/pag + title: PAG + - local: api/pipelines/paint_by_example + title: Paint by Example + - local: api/pipelines/pixart + title: PixArt-α + - local: api/pipelines/pixart_sigma + title: PixArt-Σ + - local: api/pipelines/prx + title: PRX + - local: api/pipelines/qwenimage + title: QwenImage + - local: api/pipelines/sana + title: Sana + - local: api/pipelines/sana_sprint + title: Sana Sprint + - local: api/pipelines/sana_video + title: Sana Video + - local: api/pipelines/self_attention_guidance + title: Self-Attention Guidance + - local: api/pipelines/semantic_stable_diffusion + title: Semantic Guidance + - local: api/pipelines/shap_e + title: Shap-E + - local: api/pipelines/stable_cascade + title: Stable Cascade + - sections: + - local: api/pipelines/stable_diffusion/overview + title: Overview + - local: api/pipelines/stable_diffusion/depth2img + title: Depth-to-image + - local: api/pipelines/stable_diffusion/gligen + title: GLIGEN (Grounded Language-to-Image Generation) + - local: api/pipelines/stable_diffusion/image_variation + title: Image variation + - local: api/pipelines/stable_diffusion/img2img + title: Image-to-image + - local: api/pipelines/stable_diffusion/inpaint + title: Inpainting + - local: api/pipelines/stable_diffusion/k_diffusion + title: K-Diffusion + - local: api/pipelines/stable_diffusion/latent_upscale + title: Latent upscaler + - local: api/pipelines/stable_diffusion/ldm3d_diffusion + title: LDM3D Text-to-(RGB, Depth), Text-to-(RGB-pano, Depth-pano), LDM3D + Upscaler + - local: api/pipelines/stable_diffusion/stable_diffusion_safe + title: Safe Stable Diffusion + - local: api/pipelines/stable_diffusion/sdxl_turbo + title: SDXL Turbo + - local: api/pipelines/stable_diffusion/stable_diffusion_2 + title: Stable Diffusion 2 + - local: api/pipelines/stable_diffusion/stable_diffusion_3 + title: Stable Diffusion 3 + - local: api/pipelines/stable_diffusion/stable_diffusion_xl + title: Stable Diffusion XL + - local: api/pipelines/stable_diffusion/upscale + title: Super-resolution + - local: api/pipelines/stable_diffusion/adapter + title: T2I-Adapter + - local: api/pipelines/stable_diffusion/text2img + title: Text-to-image + title: Stable Diffusion + - local: api/pipelines/stable_unclip + title: Stable unCLIP + - local: api/pipelines/unclip + title: unCLIP + - local: api/pipelines/unidiffuser + title: UniDiffuser + - local: api/pipelines/value_guided_sampling + title: Value-guided sampling + - local: api/pipelines/visualcloze + title: VisualCloze + - local: api/pipelines/wuerstchen + title: Wuerstchen + title: Image + - sections: + - local: api/pipelines/allegro + title: Allegro + - local: api/pipelines/chronoedit + title: ChronoEdit + - local: api/pipelines/cogvideox + title: CogVideoX + - local: api/pipelines/consisid + title: ConsisID + - local: api/pipelines/framepack + title: Framepack + - local: api/pipelines/hunyuan_video + title: HunyuanVideo + - local: api/pipelines/i2vgenxl + title: I2VGen-XL + - local: api/pipelines/kandinsky5_video + title: Kandinsky 5.0 Video + - local: api/pipelines/latte + title: Latte + - local: api/pipelines/ltx_video + title: LTXVideo + - local: api/pipelines/mochi + title: Mochi + - local: api/pipelines/pia + title: Personalized Image Animator (PIA) + - local: api/pipelines/skyreels_v2 + title: SkyReels-V2 + - local: api/pipelines/stable_diffusion/svd + title: Stable Video Diffusion + - local: api/pipelines/text_to_video + title: Text-to-video + - local: api/pipelines/text_to_video_zero + title: Text2Video-Zero + - local: api/pipelines/wan + title: Wan + title: Video + title: Pipelines + - sections: + - local: api/schedulers/overview + title: Overview + - local: api/schedulers/cm_stochastic_iterative + title: CMStochasticIterativeScheduler + - local: api/schedulers/ddim_cogvideox + title: CogVideoXDDIMScheduler + - local: api/schedulers/multistep_dpm_solver_cogvideox + title: CogVideoXDPMScheduler + - local: api/schedulers/consistency_decoder + title: ConsistencyDecoderScheduler + - local: api/schedulers/cosine_dpm + title: CosineDPMSolverMultistepScheduler + - local: api/schedulers/ddim_inverse + title: DDIMInverseScheduler + - local: api/schedulers/ddim + title: DDIMScheduler + - local: api/schedulers/ddpm + title: DDPMScheduler + - local: api/schedulers/deis + title: DEISMultistepScheduler + - local: api/schedulers/multistep_dpm_solver_inverse + title: DPMSolverMultistepInverse + - local: api/schedulers/multistep_dpm_solver + title: DPMSolverMultistepScheduler + - local: api/schedulers/dpm_sde + title: DPMSolverSDEScheduler + - local: api/schedulers/singlestep_dpm_solver + title: DPMSolverSinglestepScheduler + - local: api/schedulers/edm_multistep_dpm_solver + title: EDMDPMSolverMultistepScheduler + - local: api/schedulers/edm_euler + title: EDMEulerScheduler + - local: api/schedulers/euler_ancestral + title: EulerAncestralDiscreteScheduler + - local: api/schedulers/euler + title: EulerDiscreteScheduler + - local: api/schedulers/flow_match_euler_discrete + title: FlowMatchEulerDiscreteScheduler + - local: api/schedulers/flow_match_heun_discrete + title: FlowMatchHeunDiscreteScheduler + - local: api/schedulers/heun + title: HeunDiscreteScheduler + - local: api/schedulers/ipndm + title: IPNDMScheduler + - local: api/schedulers/stochastic_karras_ve + title: KarrasVeScheduler + - local: api/schedulers/dpm_discrete_ancestral + title: KDPM2AncestralDiscreteScheduler + - local: api/schedulers/dpm_discrete + title: KDPM2DiscreteScheduler + - local: api/schedulers/lcm + title: LCMScheduler + - local: api/schedulers/lms_discrete + title: LMSDiscreteScheduler + - local: api/schedulers/pndm + title: PNDMScheduler + - local: api/schedulers/repaint + title: RePaintScheduler + - local: api/schedulers/score_sde_ve + title: ScoreSdeVeScheduler + - local: api/schedulers/score_sde_vp + title: ScoreSdeVpScheduler + - local: api/schedulers/tcd + title: TCDScheduler + - local: api/schedulers/unipc + title: UniPCMultistepScheduler + - local: api/schedulers/vq_diffusion + title: VQDiffusionScheduler + title: Schedulers + - sections: + - local: api/internal_classes_overview + title: Overview + - local: api/attnprocessor + title: Attention Processor + - local: api/activations + title: Custom activation functions + - local: api/cache + title: Caching methods + - local: api/normalization + title: Custom normalization layers + - local: api/utilities + title: Utilities + - local: api/image_processor + title: VAE Image Processor + - local: api/video_processor + title: Video Processor + title: Internal classes + title: API diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/advanced_inference/outpaint.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/advanced_inference/outpaint.md new file mode 100644 index 0000000000000000000000000000000000000000..c4fe17c6a4044cc788575a7a99f3e0b85135a82b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/advanced_inference/outpaint.md @@ -0,0 +1,231 @@ + + +# Outpainting + +Outpainting extends an image beyond its original boundaries, allowing you to add, replace, or modify visual elements in an image while preserving the original image. Like [inpainting](../using-diffusers/inpaint), you want to fill the white area (in this case, the area outside of the original image) with new visual elements while keeping the original image (represented by a mask of black pixels). There are a couple of ways to outpaint, such as with a [ControlNet](https://hf.co/blog/OzzyGT/outpainting-controlnet) or with [Differential Diffusion](https://hf.co/blog/OzzyGT/outpainting-differential-diffusion). + +This guide will show you how to outpaint with an inpainting model, ControlNet, and a ZoeDepth estimator. + +Before you begin, make sure you have the [controlnet_aux](https://github.com/huggingface/controlnet_aux) library installed so you can use the ZoeDepth estimator. + +```py +!pip install -q controlnet_aux +``` + +## Image preparation + +Start by picking an image to outpaint with and remove the background with a Space like [BRIA-RMBG-1.4](https://hf.co/spaces/briaai/BRIA-RMBG-1.4). + + + +For example, remove the background from this image of a pair of shoes. + +
+
+ +
original image
+
+
+ +
background removed
+
+
+ +[Stable Diffusion XL (SDXL)](../using-diffusers/sdxl) models work best with 1024x1024 images, but you can resize the image to any size as long as your hardware has enough memory to support it. The transparent background in the image should also be replaced with a white background. Create a function (like the one below) that scales and pastes the image onto a white background. + +```py +import random + +import requests +import torch +from controlnet_aux import ZoeDetector +from PIL import Image, ImageOps + +from diffusers import ( + AutoencoderKL, + ControlNetModel, + StableDiffusionXLControlNetPipeline, + StableDiffusionXLInpaintPipeline, +) + +def scale_and_paste(original_image): + aspect_ratio = original_image.width / original_image.height + + if original_image.width > original_image.height: + new_width = 1024 + new_height = round(new_width / aspect_ratio) + else: + new_height = 1024 + new_width = round(new_height * aspect_ratio) + + resized_original = original_image.resize((new_width, new_height), Image.LANCZOS) + white_background = Image.new("RGBA", (1024, 1024), "white") + x = (1024 - new_width) // 2 + y = (1024 - new_height) // 2 + white_background.paste(resized_original, (x, y), resized_original) + + return resized_original, white_background + +original_image = Image.open( + requests.get( + "https://huggingface.co/datasets/stevhliu/testing-images/resolve/main/no-background-jordan.png", + stream=True, + ).raw +).convert("RGBA") +resized_img, white_bg_image = scale_and_paste(original_image) +``` + +To avoid adding unwanted extra details, use the ZoeDepth estimator to provide additional guidance during generation and to ensure the shoes remain consistent with the original image. + +```py +zoe = ZoeDetector.from_pretrained("lllyasviel/Annotators") +image_zoe = zoe(white_bg_image, detect_resolution=512, image_resolution=1024) +image_zoe +``` + +
+ +
+ +## Outpaint + +Once your image is ready, you can generate content in the white area around the shoes with [controlnet-inpaint-dreamer-sdxl](https://hf.co/destitech/controlnet-inpaint-dreamer-sdxl), a SDXL ControlNet trained for inpainting. + +Load the inpainting ControlNet, ZoeDepth model, VAE and pass them to the [`StableDiffusionXLControlNetPipeline`]. Then you can create an optional `generate_image` function (for convenience) to outpaint an initial image. + +```py +controlnets = [ + ControlNetModel.from_pretrained( + "destitech/controlnet-inpaint-dreamer-sdxl", torch_dtype=torch.float16, variant="fp16" + ), + ControlNetModel.from_pretrained( + "diffusers/controlnet-zoe-depth-sdxl-1.0", torch_dtype=torch.float16 + ), +] +vae = AutoencoderKL.from_pretrained("madebyollin/sdxl-vae-fp16-fix", torch_dtype=torch.float16).to("cuda") +pipeline = StableDiffusionXLControlNetPipeline.from_pretrained( + "SG161222/RealVisXL_V4.0", torch_dtype=torch.float16, variant="fp16", controlnet=controlnets, vae=vae +).to("cuda") + +def generate_image(prompt, negative_prompt, inpaint_image, zoe_image, seed: int = None): + if seed is None: + seed = random.randint(0, 2**32 - 1) + + generator = torch.Generator(device="cpu").manual_seed(seed) + + image = pipeline( + prompt, + negative_prompt=negative_prompt, + image=[inpaint_image, zoe_image], + guidance_scale=6.5, + num_inference_steps=25, + generator=generator, + controlnet_conditioning_scale=[0.5, 0.8], + control_guidance_end=[0.9, 0.6], + ).images[0] + + return image + +prompt = "nike air jordans on a basketball court" +negative_prompt = "" + +temp_image = generate_image(prompt, negative_prompt, white_bg_image, image_zoe, 908097) +``` + +Paste the original image over the initial outpainted image. You'll improve the outpainted background in a later step. + +```py +x = (1024 - resized_img.width) // 2 +y = (1024 - resized_img.height) // 2 +temp_image.paste(resized_img, (x, y), resized_img) +temp_image +``` + +
+ +
+ +> [!TIP] +> Now is a good time to free up some memory if you're running low! +> +> ```py +> pipeline=None +> torch.cuda.empty_cache() +> ``` + +Now that you have an initial outpainted image, load the [`StableDiffusionXLInpaintPipeline`] with the [RealVisXL](https://hf.co/SG161222/RealVisXL_V4.0) model to generate the final outpainted image with better quality. + +```py +pipeline = StableDiffusionXLInpaintPipeline.from_pretrained( + "OzzyGT/RealVisXL_V4.0_inpainting", + torch_dtype=torch.float16, + variant="fp16", + vae=vae, +).to("cuda") +``` + +Prepare a mask for the final outpainted image. To create a more natural transition between the original image and the outpainted background, blur the mask to help it blend better. + +```py +mask = Image.new("L", temp_image.size) +mask.paste(resized_img.split()[3], (x, y)) +mask = ImageOps.invert(mask) +final_mask = mask.point(lambda p: p > 128 and 255) +mask_blurred = pipeline.mask_processor.blur(final_mask, blur_factor=20) +mask_blurred +``` + +
+ +
+ +Create a better prompt and pass it to the `generate_outpaint` function to generate the final outpainted image. Again, paste the original image over the final outpainted background. + +```py +def generate_outpaint(prompt, negative_prompt, image, mask, seed: int = None): + if seed is None: + seed = random.randint(0, 2**32 - 1) + + generator = torch.Generator(device="cpu").manual_seed(seed) + + image = pipeline( + prompt, + negative_prompt=negative_prompt, + image=image, + mask_image=mask, + guidance_scale=10.0, + strength=0.8, + num_inference_steps=30, + generator=generator, + ).images[0] + + return image + +prompt = "high quality photo of nike air jordans on a basketball court, highly detailed" +negative_prompt = "" + +final_image = generate_outpaint(prompt, negative_prompt, temp_image, mask_blurred, 7688778) +x = (1024 - resized_img.width) // 2 +y = (1024 - resized_img.height) // 2 +final_image.paste(resized_img, (x, y), resized_img) +final_image +``` + +
+ +
diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/activations.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/activations.md new file mode 100644 index 0000000000000000000000000000000000000000..3d8e14dd50e24e2a372ebe9c62ba11757fa6a2c5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/activations.md @@ -0,0 +1,40 @@ + + +# Activation functions + +Customized activation functions for supporting various models in 🤗 Diffusers. + +## GELU + +[[autodoc]] models.activations.GELU + +## GEGLU + +[[autodoc]] models.activations.GEGLU + +## ApproximateGELU + +[[autodoc]] models.activations.ApproximateGELU + + +## SwiGLU + +[[autodoc]] models.activations.SwiGLU + +## FP32SiLU + +[[autodoc]] models.activations.FP32SiLU + +## LinearActivation + +[[autodoc]] models.activations.LinearActivation diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/attnprocessor.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/attnprocessor.md new file mode 100644 index 0000000000000000000000000000000000000000..ed87cdf7d43c05360e43a6430ae29ae2dd49e147 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/attnprocessor.md @@ -0,0 +1,166 @@ + + +# Attention Processor + +An attention processor is a class for applying different types of attention mechanisms. + +## AttnProcessor + +[[autodoc]] models.attention_processor.AttnProcessor + +[[autodoc]] models.attention_processor.AttnProcessor2_0 + +[[autodoc]] models.attention_processor.AttnAddedKVProcessor + +[[autodoc]] models.attention_processor.AttnAddedKVProcessor2_0 + +[[autodoc]] models.attention_processor.AttnProcessorNPU + +[[autodoc]] models.attention_processor.FusedAttnProcessor2_0 + +## Allegro + +[[autodoc]] models.attention_processor.AllegroAttnProcessor2_0 + +## AuraFlow + +[[autodoc]] models.attention_processor.AuraFlowAttnProcessor2_0 + +[[autodoc]] models.attention_processor.FusedAuraFlowAttnProcessor2_0 + +## CogVideoX + +[[autodoc]] models.attention_processor.CogVideoXAttnProcessor2_0 + +[[autodoc]] models.attention_processor.FusedCogVideoXAttnProcessor2_0 + +## CrossFrameAttnProcessor + +[[autodoc]] pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.CrossFrameAttnProcessor + +## Custom Diffusion + +[[autodoc]] models.attention_processor.CustomDiffusionAttnProcessor + +[[autodoc]] models.attention_processor.CustomDiffusionAttnProcessor2_0 + +[[autodoc]] models.attention_processor.CustomDiffusionXFormersAttnProcessor + +## Flux + +[[autodoc]] models.attention_processor.FluxAttnProcessor2_0 + +[[autodoc]] models.attention_processor.FusedFluxAttnProcessor2_0 + +[[autodoc]] models.attention_processor.FluxSingleAttnProcessor2_0 + +## Hunyuan + +[[autodoc]] models.attention_processor.HunyuanAttnProcessor2_0 + +[[autodoc]] models.attention_processor.FusedHunyuanAttnProcessor2_0 + +[[autodoc]] models.attention_processor.PAGHunyuanAttnProcessor2_0 + +[[autodoc]] models.attention_processor.PAGCFGHunyuanAttnProcessor2_0 + +## IdentitySelfAttnProcessor2_0 + +[[autodoc]] models.attention_processor.PAGIdentitySelfAttnProcessor2_0 + +[[autodoc]] models.attention_processor.PAGCFGIdentitySelfAttnProcessor2_0 + +## IP-Adapter + +[[autodoc]] models.attention_processor.IPAdapterAttnProcessor + +[[autodoc]] models.attention_processor.IPAdapterAttnProcessor2_0 + +[[autodoc]] models.attention_processor.SD3IPAdapterJointAttnProcessor2_0 + +## JointAttnProcessor2_0 + +[[autodoc]] models.attention_processor.JointAttnProcessor2_0 + +[[autodoc]] models.attention_processor.PAGJointAttnProcessor2_0 + +[[autodoc]] models.attention_processor.PAGCFGJointAttnProcessor2_0 + +[[autodoc]] models.attention_processor.FusedJointAttnProcessor2_0 + +## LoRA + +[[autodoc]] models.attention_processor.LoRAAttnProcessor + +[[autodoc]] models.attention_processor.LoRAAttnProcessor2_0 + +[[autodoc]] models.attention_processor.LoRAAttnAddedKVProcessor + +[[autodoc]] models.attention_processor.LoRAXFormersAttnProcessor + +## Lumina-T2X + +[[autodoc]] models.attention_processor.LuminaAttnProcessor2_0 + +## Mochi + +[[autodoc]] models.attention_processor.MochiAttnProcessor2_0 + +[[autodoc]] models.attention_processor.MochiVaeAttnProcessor2_0 + +## Sana + +[[autodoc]] models.attention_processor.SanaLinearAttnProcessor2_0 + +[[autodoc]] models.attention_processor.SanaMultiscaleAttnProcessor2_0 + +[[autodoc]] models.attention_processor.PAGCFGSanaLinearAttnProcessor2_0 + +[[autodoc]] models.attention_processor.PAGIdentitySanaLinearAttnProcessor2_0 + +## Stable Audio + +[[autodoc]] models.attention_processor.StableAudioAttnProcessor2_0 + +## SlicedAttnProcessor + +[[autodoc]] models.attention_processor.SlicedAttnProcessor + +[[autodoc]] models.attention_processor.SlicedAttnAddedKVProcessor + +## XFormersAttnProcessor + +[[autodoc]] models.attention_processor.XFormersAttnProcessor + +[[autodoc]] models.attention_processor.XFormersAttnAddedKVProcessor + +## XLAFlashAttnProcessor2_0 + +[[autodoc]] models.attention_processor.XLAFlashAttnProcessor2_0 + +## XFormersJointAttnProcessor + +[[autodoc]] models.attention_processor.XFormersJointAttnProcessor + +## IPAdapterXFormersAttnProcessor + +[[autodoc]] models.attention_processor.IPAdapterXFormersAttnProcessor + +## FluxIPAdapterJointAttnProcessor2_0 + +[[autodoc]] models.attention_processor.FluxIPAdapterJointAttnProcessor2_0 + + +## XLAFluxFlashAttnProcessor2_0 + +[[autodoc]] models.attention_processor.XLAFluxFlashAttnProcessor2_0 \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/cache.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/cache.md new file mode 100644 index 0000000000000000000000000000000000000000..9ba474208551aab25cdd24c255b05b8d2928c138 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/cache.md @@ -0,0 +1,36 @@ + + +# Caching methods + +Cache methods speedup diffusion transformers by storing and reusing intermediate outputs of specific layers, such as attention and feedforward layers, instead of recalculating them at each inference step. + +## CacheMixin + +[[autodoc]] CacheMixin + +## PyramidAttentionBroadcastConfig + +[[autodoc]] PyramidAttentionBroadcastConfig + +[[autodoc]] apply_pyramid_attention_broadcast + +## FasterCacheConfig + +[[autodoc]] FasterCacheConfig + +[[autodoc]] apply_faster_cache + +### FirstBlockCacheConfig + +[[autodoc]] FirstBlockCacheConfig + +[[autodoc]] apply_first_block_cache diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/configuration.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/configuration.md new file mode 100644 index 0000000000000000000000000000000000000000..328e109e1e4c07cb21905f38a895398b03accec0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/configuration.md @@ -0,0 +1,27 @@ + + +# Configuration + +Schedulers from [`~schedulers.scheduling_utils.SchedulerMixin`] and models from [`ModelMixin`] inherit from [`ConfigMixin`] which stores all the parameters that are passed to their respective `__init__` methods in a JSON-configuration file. + +> [!TIP] +> To use private or [gated](https://huggingface.co/docs/hub/models-gated#gated-models) models, log-in with `hf auth login`. + +## ConfigMixin + +[[autodoc]] ConfigMixin + - load_config + - from_config + - save_config + - to_json_file + - to_json_string diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/image_processor.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/image_processor.md new file mode 100644 index 0000000000000000000000000000000000000000..82d1837b0b5037e4a3fc98b03e081aa457ef3a21 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/image_processor.md @@ -0,0 +1,41 @@ + + +# VAE Image Processor + +The [`VaeImageProcessor`] provides a unified API for [`StableDiffusionPipeline`]s to prepare image inputs for VAE encoding and post-processing outputs once they're decoded. This includes transformations such as resizing, normalization, and conversion between PIL Image, PyTorch, and NumPy arrays. + +All pipelines with [`VaeImageProcessor`] accept PIL Image, PyTorch tensor, or NumPy arrays as image inputs and return outputs based on the `output_type` argument by the user. You can pass encoded image latents directly to the pipeline and return latents from the pipeline as a specific output with the `output_type` argument (for example `output_type="latent"`). This allows you to take the generated latents from one pipeline and pass it to another pipeline as input without leaving the latent space. It also makes it much easier to use multiple pipelines together by passing PyTorch tensors directly between different pipelines. + +## VaeImageProcessor + +[[autodoc]] image_processor.VaeImageProcessor + +## InpaintProcessor + +The [`InpaintProcessor`] accepts `mask` and `image` inputs and process them together. Optionally, it can accept padding_mask_crop and apply mask overlay. + +[[autodoc]] image_processor.InpaintProcessor + +## VaeImageProcessorLDM3D + +The [`VaeImageProcessorLDM3D`] accepts RGB and depth inputs and returns RGB and depth outputs. + +[[autodoc]] image_processor.VaeImageProcessorLDM3D + +## PixArtImageProcessor + +[[autodoc]] image_processor.PixArtImageProcessor + +## IPAdapterMaskProcessor + +[[autodoc]] image_processor.IPAdapterMaskProcessor diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/internal_classes_overview.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/internal_classes_overview.md new file mode 100644 index 0000000000000000000000000000000000000000..d76086848913e3a37b961798878307fc917d8ba1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/internal_classes_overview.md @@ -0,0 +1,15 @@ + + +# Overview + +The APIs in this section are more experimental and prone to breaking changes. Most of them are used internally for development, but they may also be useful to you if you're interested in building a diffusion model with some custom parts or if you're interested in some of our helper utilities for working with 🤗 Diffusers. diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/ip_adapter.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/ip_adapter.md new file mode 100644 index 0000000000000000000000000000000000000000..508e6d4ee6aeea07bbfaa41dabfda3750ab33b90 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/ip_adapter.md @@ -0,0 +1,32 @@ + + +# IP-Adapter + +[IP-Adapter](https://hf.co/papers/2308.06721) is a lightweight adapter that enables prompting a diffusion model with an image. This method decouples the cross-attention layers of the image and text features. The image features are generated from an image encoder. + +> [!TIP] +> Learn how to load and use an IP-Adapter checkpoint and image in the [IP-Adapter](../../using-diffusers/ip_adapter) guide,. + +## IPAdapterMixin + +[[autodoc]] loaders.ip_adapter.IPAdapterMixin + +## SD3IPAdapterMixin + +[[autodoc]] loaders.ip_adapter.SD3IPAdapterMixin + - all + - is_ip_adapter_active + +## IPAdapterMaskProcessor + +[[autodoc]] image_processor.IPAdapterMaskProcessor \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/lora.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/lora.md new file mode 100644 index 0000000000000000000000000000000000000000..8e0326e0c33466509c976374868e6de4a7ac69e4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/lora.md @@ -0,0 +1,115 @@ + + +# LoRA + +LoRA is a fast and lightweight training method that inserts and trains a significantly smaller number of parameters instead of all the model parameters. This produces a smaller file (~100 MBs) and makes it easier to quickly train a model to learn a new concept. LoRA weights are typically loaded into the denoiser, text encoder or both. The denoiser usually corresponds to a UNet ([`UNet2DConditionModel`], for example) or a Transformer ([`SD3Transformer2DModel`], for example). There are several classes for loading LoRA weights: + +- [`StableDiffusionLoraLoaderMixin`] provides functions for loading and unloading, fusing and unfusing, enabling and disabling, and more functions for managing LoRA weights. This class can be used with any model. +- [`StableDiffusionXLLoraLoaderMixin`] is a [Stable Diffusion (SDXL)](../../api/pipelines/stable_diffusion/stable_diffusion_xl) version of the [`StableDiffusionLoraLoaderMixin`] class for loading and saving LoRA weights. It can only be used with the SDXL model. +- [`SD3LoraLoaderMixin`] provides similar functions for [Stable Diffusion 3](https://huggingface.co/blog/sd3). +- [`FluxLoraLoaderMixin`] provides similar functions for [Flux](https://huggingface.co/docs/diffusers/main/en/api/pipelines/flux). +- [`CogVideoXLoraLoaderMixin`] provides similar functions for [CogVideoX](https://huggingface.co/docs/diffusers/main/en/api/pipelines/cogvideox). +- [`Mochi1LoraLoaderMixin`] provides similar functions for [Mochi](https://huggingface.co/docs/diffusers/main/en/api/pipelines/mochi). +- [`AuraFlowLoraLoaderMixin`] provides similar functions for [AuraFlow](https://huggingface.co/fal/AuraFlow). +- [`LTXVideoLoraLoaderMixin`] provides similar functions for [LTX-Video](https://huggingface.co/docs/diffusers/main/en/api/pipelines/ltx_video). +- [`SanaLoraLoaderMixin`] provides similar functions for [Sana](https://huggingface.co/docs/diffusers/main/en/api/pipelines/sana). +- [`HunyuanVideoLoraLoaderMixin`] provides similar functions for [HunyuanVideo](https://huggingface.co/docs/diffusers/main/en/api/pipelines/hunyuan_video). +- [`Lumina2LoraLoaderMixin`] provides similar functions for [Lumina2](https://huggingface.co/docs/diffusers/main/en/api/pipelines/lumina2). +- [`WanLoraLoaderMixin`] provides similar functions for [Wan](https://huggingface.co/docs/diffusers/main/en/api/pipelines/wan). +- [`SkyReelsV2LoraLoaderMixin`] provides similar functions for [SkyReels-V2](https://huggingface.co/docs/diffusers/main/en/api/pipelines/skyreels_v2). +- [`CogView4LoraLoaderMixin`] provides similar functions for [CogView4](https://huggingface.co/docs/diffusers/main/en/api/pipelines/cogview4). +- [`AmusedLoraLoaderMixin`] is for the [`AmusedPipeline`]. +- [`HiDreamImageLoraLoaderMixin`] provides similar functions for [HiDream Image](https://huggingface.co/docs/diffusers/main/en/api/pipelines/hidream) +- [`QwenImageLoraLoaderMixin`] provides similar functions for [Qwen Image](https://huggingface.co/docs/diffusers/main/en/api/pipelines/qwen) +- [`LoraBaseMixin`] provides a base class with several utility methods to fuse, unfuse, unload, LoRAs and more. + +> [!TIP] +> To learn more about how to load LoRA weights, see the [LoRA](../../tutorials/using_peft_for_inference) loading guide. + +## LoraBaseMixin + +[[autodoc]] loaders.lora_base.LoraBaseMixin + +## StableDiffusionLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.StableDiffusionLoraLoaderMixin + +## StableDiffusionXLLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.StableDiffusionXLLoraLoaderMixin + +## SD3LoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.SD3LoraLoaderMixin + +## FluxLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.FluxLoraLoaderMixin + +## CogVideoXLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.CogVideoXLoraLoaderMixin + +## Mochi1LoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.Mochi1LoraLoaderMixin +## AuraFlowLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.AuraFlowLoraLoaderMixin + +## LTXVideoLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.LTXVideoLoraLoaderMixin + +## SanaLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.SanaLoraLoaderMixin + +## HunyuanVideoLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.HunyuanVideoLoraLoaderMixin + +## Lumina2LoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.Lumina2LoraLoaderMixin + +## CogView4LoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.CogView4LoraLoaderMixin + +## WanLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.WanLoraLoaderMixin + +## SkyReelsV2LoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.SkyReelsV2LoraLoaderMixin + +## AmusedLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.AmusedLoraLoaderMixin + +## HiDreamImageLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.HiDreamImageLoraLoaderMixin + +## QwenImageLoraLoaderMixin + +[[autodoc]] loaders.lora_pipeline.QwenImageLoraLoaderMixin + +## KandinskyLoraLoaderMixin +[[autodoc]] loaders.lora_pipeline.KandinskyLoraLoaderMixin + +## LoraBaseMixin + +[[autodoc]] loaders.lora_base.LoraBaseMixin \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/peft.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/peft.md new file mode 100644 index 0000000000000000000000000000000000000000..c514766dd87f65987008c96632c87ad9758e3497 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/peft.md @@ -0,0 +1,22 @@ + + +# PEFT + +Diffusers supports loading adapters such as [LoRA](../../tutorials/using_peft_for_inference) with the [PEFT](https://huggingface.co/docs/peft/index) library with the [`~loaders.peft.PeftAdapterMixin`] class. This allows modeling classes in Diffusers like [`UNet2DConditionModel`], [`SD3Transformer2DModel`] to operate with an adapter. + +> [!TIP] +> Refer to the [Inference with PEFT](../../tutorials/using_peft_for_inference.md) tutorial for an overview of how to use PEFT in Diffusers for inference. + +## PeftAdapterMixin + +[[autodoc]] loaders.peft.PeftAdapterMixin diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/single_file.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/single_file.md new file mode 100644 index 0000000000000000000000000000000000000000..94fcda9f176576472c460d64f68b30444502fbf3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/single_file.md @@ -0,0 +1,62 @@ + + +# Single files + +The [`~loaders.FromSingleFileMixin.from_single_file`] method allows you to load: + +* a model stored in a single file, which is useful if you're working with models from the diffusion ecosystem, like Automatic1111, and commonly rely on a single-file layout to store and share models +* a model stored in their originally distributed layout, which is useful if you're working with models finetuned with other services, and want to load it directly into Diffusers model objects and pipelines + +> [!TIP] +> Read the [Model files and layouts](../../using-diffusers/other-formats) guide to learn more about the Diffusers-multifolder layout versus the single-file layout, and how to load models stored in these different layouts. + +## Supported pipelines + +- [`StableDiffusionPipeline`] +- [`StableDiffusionImg2ImgPipeline`] +- [`StableDiffusionInpaintPipeline`] +- [`StableDiffusionControlNetPipeline`] +- [`StableDiffusionControlNetImg2ImgPipeline`] +- [`StableDiffusionControlNetInpaintPipeline`] +- [`StableDiffusionUpscalePipeline`] +- [`StableDiffusionXLPipeline`] +- [`StableDiffusionXLImg2ImgPipeline`] +- [`StableDiffusionXLInpaintPipeline`] +- [`StableDiffusionXLInstructPix2PixPipeline`] +- [`StableDiffusionXLControlNetPipeline`] +- [`StableDiffusionXLKDiffusionPipeline`] +- [`StableDiffusion3Pipeline`] +- [`LatentConsistencyModelPipeline`] +- [`LatentConsistencyModelImg2ImgPipeline`] +- [`StableDiffusionControlNetXSPipeline`] +- [`StableDiffusionXLControlNetXSPipeline`] +- [`LEditsPPPipelineStableDiffusion`] +- [`LEditsPPPipelineStableDiffusionXL`] +- [`PIAPipeline`] + +## Supported models + +- [`UNet2DConditionModel`] +- [`StableCascadeUNet`] +- [`AutoencoderKL`] +- [`ControlNetModel`] +- [`SD3Transformer2DModel`] +- [`FluxTransformer2DModel`] + +## FromSingleFileMixin + +[[autodoc]] loaders.single_file.FromSingleFileMixin + +## FromOriginalModelMixin + +[[autodoc]] loaders.single_file_model.FromOriginalModelMixin diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/textual_inversion.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/textual_inversion.md new file mode 100644 index 0000000000000000000000000000000000000000..5e8bfac255d0e5228f9402baeb13dc938007b843 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/textual_inversion.md @@ -0,0 +1,24 @@ + + +# Textual Inversion + +Textual Inversion is a training method for personalizing models by learning new text embeddings from a few example images. The file produced from training is extremely small (a few KBs) and the new embeddings can be loaded into the text encoder. + +[`TextualInversionLoaderMixin`] provides a function for loading Textual Inversion embeddings from Diffusers and Automatic1111 into the text encoder and loading a special token to activate the embeddings. + +> [!TIP] +> To learn more about how to load Textual Inversion embeddings, see the [Textual Inversion](../../using-diffusers/textual_inversion_inference) loading guide. + +## TextualInversionLoaderMixin + +[[autodoc]] loaders.textual_inversion.TextualInversionLoaderMixin \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/transformer_sd3.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/transformer_sd3.md new file mode 100644 index 0000000000000000000000000000000000000000..2c8b81b59cf978cf26d5038bdaf2166c5edf7146 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/transformer_sd3.md @@ -0,0 +1,26 @@ + + +# SD3Transformer2D + +This class is useful when *only* loading weights into a [`SD3Transformer2DModel`]. If you need to load weights into the text encoder or a text encoder and SD3Transformer2DModel, check [`SD3LoraLoaderMixin`](lora#diffusers.loaders.SD3LoraLoaderMixin) class instead. + +The [`SD3Transformer2DLoadersMixin`] class currently only loads IP-Adapter weights, but will be used in the future to save weights and load LoRAs. + +> [!TIP] +> To learn more about how to load LoRA weights, see the [LoRA](../../tutorials/using_peft_for_inference) loading guide. + +## SD3Transformer2DLoadersMixin + +[[autodoc]] loaders.transformer_sd3.SD3Transformer2DLoadersMixin + - all + - _load_ip_adapter_weights \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/unet.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/unet.md new file mode 100644 index 0000000000000000000000000000000000000000..50d210bbf53f3d95310e0608713bd46619da0a55 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/loaders/unet.md @@ -0,0 +1,24 @@ + + +# UNet + +Some training methods - like LoRA and Custom Diffusion - typically target the UNet's attention layers, but these training methods can also target other non-attention layers. Instead of training all of a model's parameters, only a subset of the parameters are trained, which is faster and more efficient. This class is useful if you're *only* loading weights into a UNet. If you need to load weights into the text encoder or a text encoder and UNet, try using the [`~loaders.StableDiffusionLoraLoaderMixin.load_lora_weights`] function instead. + +The [`UNet2DConditionLoadersMixin`] class provides functions for loading and saving weights, fusing and unfusing LoRAs, disabling and enabling LoRAs, and setting and deleting adapters. + +> [!TIP] +> To learn more about how to load LoRA weights, see the [LoRA](../../tutorials/using_peft_for_inference) guide. + +## UNet2DConditionLoadersMixin + +[[autodoc]] loaders.unet.UNet2DConditionLoadersMixin \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/logging.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/logging.md new file mode 100644 index 0000000000000000000000000000000000000000..8e0f0ed6d3e4127b0efdcae8ae91976175de61cb --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/logging.md @@ -0,0 +1,96 @@ + + +# Logging + +🤗 Diffusers has a centralized logging system to easily manage the verbosity of the library. The default verbosity is set to `WARNING`. + +To change the verbosity level, use one of the direct setters. For instance, to change the verbosity to the `INFO` level. + +```python +import diffusers + +diffusers.logging.set_verbosity_info() +``` + +You can also use the environment variable `DIFFUSERS_VERBOSITY` to override the default verbosity. You can set it +to one of the following: `debug`, `info`, `warning`, `error`, `critical`. For example: + +```bash +DIFFUSERS_VERBOSITY=error ./myprogram.py +``` + +Additionally, some `warnings` can be disabled by setting the environment variable +`DIFFUSERS_NO_ADVISORY_WARNINGS` to a true value, like `1`. This disables any warning logged by +[`logger.warning_advice`]. For example: + +```bash +DIFFUSERS_NO_ADVISORY_WARNINGS=1 ./myprogram.py +``` + +Here is an example of how to use the same logger as the library in your own module or script: + +```python +from diffusers.utils import logging + +logging.set_verbosity_info() +logger = logging.get_logger("diffusers") +logger.info("INFO") +logger.warning("WARN") +``` + + +All methods of the logging module are documented below. The main methods are +[`logging.get_verbosity`] to get the current level of verbosity in the logger and +[`logging.set_verbosity`] to set the verbosity to the level of your choice. + +In order from the least verbose to the most verbose: + +| Method | Integer value | Description | +|----------------------------------------------------------:|--------------:|----------------------------------------------------:| +| `diffusers.logging.CRITICAL` or `diffusers.logging.FATAL` | 50 | only report the most critical errors | +| `diffusers.logging.ERROR` | 40 | only report errors | +| `diffusers.logging.WARNING` or `diffusers.logging.WARN` | 30 | only report errors and warnings (default) | +| `diffusers.logging.INFO` | 20 | only report errors, warnings, and basic information | +| `diffusers.logging.DEBUG` | 10 | report all information | + +By default, `tqdm` progress bars are displayed during model download. [`logging.disable_progress_bar`] and [`logging.enable_progress_bar`] are used to enable or disable this behavior. + +## Base setters + +[[autodoc]] utils.logging.set_verbosity_error + +[[autodoc]] utils.logging.set_verbosity_warning + +[[autodoc]] utils.logging.set_verbosity_info + +[[autodoc]] utils.logging.set_verbosity_debug + +## Other functions + +[[autodoc]] utils.logging.get_verbosity + +[[autodoc]] utils.logging.set_verbosity + +[[autodoc]] utils.logging.get_logger + +[[autodoc]] utils.logging.enable_default_handler + +[[autodoc]] utils.logging.disable_default_handler + +[[autodoc]] utils.logging.enable_explicit_format + +[[autodoc]] utils.logging.reset_format + +[[autodoc]] utils.logging.enable_progress_bar + +[[autodoc]] utils.logging.disable_progress_bar diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/allegro_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/allegro_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..e23d75a4d3048154f67b77f2007a6a283cf13e8d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/allegro_transformer3d.md @@ -0,0 +1,30 @@ + + +# AllegroTransformer3DModel + +A Diffusion Transformer model for 3D data from [Allegro](https://github.com/rhymes-ai/Allegro) was introduced in [Allegro: Open the Black Box of Commercial-Level Video Generation Model](https://huggingface.co/papers/2410.15458) by RhymesAI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AllegroTransformer3DModel + +transformer = AllegroTransformer3DModel.from_pretrained("rhymes-ai/Allegro", subfolder="transformer", torch_dtype=torch.bfloat16).to("cuda") +``` + +## AllegroTransformer3DModel + +[[autodoc]] AllegroTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/asymmetricautoencoderkl.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/asymmetricautoencoderkl.md new file mode 100644 index 0000000000000000000000000000000000000000..0c7fbd38fb54d6ff4e2c3dc1b5fca94234798281 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/asymmetricautoencoderkl.md @@ -0,0 +1,60 @@ + + +# AsymmetricAutoencoderKL + +Improved larger variational autoencoder (VAE) model with KL loss for inpainting task: [Designing a Better Asymmetric VQGAN for StableDiffusion](https://huggingface.co/papers/2306.04632) by Zixin Zhu, Xuelu Feng, Dongdong Chen, Jianmin Bao, Le Wang, Yinpeng Chen, Lu Yuan, Gang Hua. + +The abstract from the paper is: + +*StableDiffusion is a revolutionary text-to-image generator that is causing a stir in the world of image generation and editing. Unlike traditional methods that learn a diffusion model in pixel space, StableDiffusion learns a diffusion model in the latent space via a VQGAN, ensuring both efficiency and quality. It not only supports image generation tasks, but also enables image editing for real images, such as image inpainting and local editing. However, we have observed that the vanilla VQGAN used in StableDiffusion leads to significant information loss, causing distortion artifacts even in non-edited image regions. To this end, we propose a new asymmetric VQGAN with two simple designs. Firstly, in addition to the input from the encoder, the decoder contains a conditional branch that incorporates information from task-specific priors, such as the unmasked image region in inpainting. Secondly, the decoder is much heavier than the encoder, allowing for more detailed recovery while only slightly increasing the total inference cost. The training cost of our asymmetric VQGAN is cheap, and we only need to retrain a new asymmetric decoder while keeping the vanilla VQGAN encoder and StableDiffusion unchanged. Our asymmetric VQGAN can be widely used in StableDiffusion-based inpainting and local editing methods. Extensive experiments demonstrate that it can significantly improve the inpainting and editing performance, while maintaining the original text-to-image capability. The code is available at https://github.com/buxiangzhiren/Asymmetric_VQGAN* + +Evaluation results can be found in section 4.1 of the original paper. + +## Available checkpoints + +* [https://huggingface.co/cross-attention/asymmetric-autoencoder-kl-x-1-5](https://huggingface.co/cross-attention/asymmetric-autoencoder-kl-x-1-5) +* [https://huggingface.co/cross-attention/asymmetric-autoencoder-kl-x-2](https://huggingface.co/cross-attention/asymmetric-autoencoder-kl-x-2) + +## Example Usage + +```python +from diffusers import AsymmetricAutoencoderKL, StableDiffusionInpaintPipeline +from diffusers.utils import load_image, make_image_grid + + +prompt = "a photo of a person with beard" +img_url = "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main/repaint/celeba_hq_256.png" +mask_url = "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main/repaint/mask_256.png" + +original_image = load_image(img_url).resize((512, 512)) +mask_image = load_image(mask_url).resize((512, 512)) + +pipe = StableDiffusionInpaintPipeline.from_pretrained("stable-diffusion-v1-5/stable-diffusion-inpainting") +pipe.vae = AsymmetricAutoencoderKL.from_pretrained("cross-attention/asymmetric-autoencoder-kl-x-1-5") +pipe.to("cuda") + +image = pipe(prompt=prompt, image=original_image, mask_image=mask_image).images[0] +make_image_grid([original_image, mask_image, image], rows=1, cols=3) +``` + +## AsymmetricAutoencoderKL + +[[autodoc]] models.autoencoders.autoencoder_asym_kl.AsymmetricAutoencoderKL + +## AutoencoderKLOutput + +[[autodoc]] models.autoencoders.autoencoder_kl.AutoencoderKLOutput + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/aura_flow_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/aura_flow_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..4e5cdb422815a28c12d3efc750027079fd65a327 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/aura_flow_transformer2d.md @@ -0,0 +1,19 @@ + + +# AuraFlowTransformer2DModel + +A Transformer model for image-like data from [AuraFlow](https://blog.fal.ai/auraflow/). + +## AuraFlowTransformer2DModel + +[[autodoc]] AuraFlowTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/auto_model.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/auto_model.md new file mode 100644 index 0000000000000000000000000000000000000000..aee9b5dbe50cdb108665d3f9951f583c3b1092cf --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/auto_model.md @@ -0,0 +1,21 @@ + + +# AutoModel + +[`AutoModel`] automatically retrieves the correct model class from the checkpoint `config.json` file. + +## AutoModel + +[[autodoc]] AutoModel + - all + - from_pretrained diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_dc.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_dc.md new file mode 100644 index 0000000000000000000000000000000000000000..fd53ec0ef66f3d64a3ab1a64c9a636343992d644 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_dc.md @@ -0,0 +1,72 @@ + + +# AutoencoderDC + +The 2D Autoencoder model used in [SANA](https://huggingface.co/papers/2410.10629) and introduced in [DCAE](https://huggingface.co/papers/2410.10733) by authors Junyu Chen\*, Han Cai\*, Junsong Chen, Enze Xie, Shang Yang, Haotian Tang, Muyang Li, Yao Lu, Song Han from MIT HAN Lab. + +The abstract from the paper is: + +*We present Deep Compression Autoencoder (DC-AE), a new family of autoencoder models for accelerating high-resolution diffusion models. Existing autoencoder models have demonstrated impressive results at a moderate spatial compression ratio (e.g., 8x), but fail to maintain satisfactory reconstruction accuracy for high spatial compression ratios (e.g., 64x). We address this challenge by introducing two key techniques: (1) Residual Autoencoding, where we design our models to learn residuals based on the space-to-channel transformed features to alleviate the optimization difficulty of high spatial-compression autoencoders; (2) Decoupled High-Resolution Adaptation, an efficient decoupled three-phases training strategy for mitigating the generalization penalty of high spatial-compression autoencoders. With these designs, we improve the autoencoder's spatial compression ratio up to 128 while maintaining the reconstruction quality. Applying our DC-AE to latent diffusion models, we achieve significant speedup without accuracy drop. For example, on ImageNet 512x512, our DC-AE provides 19.1x inference speedup and 17.9x training speedup on H100 GPU for UViT-H while achieving a better FID, compared with the widely used SD-VAE-f8 autoencoder. Our code is available at [this https URL](https://github.com/mit-han-lab/efficientvit).* + +The following DCAE models are released and supported in Diffusers. + +| Diffusers format | Original format | +|:----------------:|:---------------:| +| [`mit-han-lab/dc-ae-f32c32-sana-1.0-diffusers`](https://huggingface.co/mit-han-lab/dc-ae-f32c32-sana-1.0-diffusers) | [`mit-han-lab/dc-ae-f32c32-sana-1.0`](https://huggingface.co/mit-han-lab/dc-ae-f32c32-sana-1.0) +| [`mit-han-lab/dc-ae-f32c32-in-1.0-diffusers`](https://huggingface.co/mit-han-lab/dc-ae-f32c32-in-1.0-diffusers) | [`mit-han-lab/dc-ae-f32c32-in-1.0`](https://huggingface.co/mit-han-lab/dc-ae-f32c32-in-1.0) +| [`mit-han-lab/dc-ae-f32c32-mix-1.0-diffusers`](https://huggingface.co/mit-han-lab/dc-ae-f32c32-mix-1.0-diffusers) | [`mit-han-lab/dc-ae-f32c32-mix-1.0`](https://huggingface.co/mit-han-lab/dc-ae-f32c32-mix-1.0) +| [`mit-han-lab/dc-ae-f64c128-in-1.0-diffusers`](https://huggingface.co/mit-han-lab/dc-ae-f64c128-in-1.0-diffusers) | [`mit-han-lab/dc-ae-f64c128-in-1.0`](https://huggingface.co/mit-han-lab/dc-ae-f64c128-in-1.0) +| [`mit-han-lab/dc-ae-f64c128-mix-1.0-diffusers`](https://huggingface.co/mit-han-lab/dc-ae-f64c128-mix-1.0-diffusers) | [`mit-han-lab/dc-ae-f64c128-mix-1.0`](https://huggingface.co/mit-han-lab/dc-ae-f64c128-mix-1.0) +| [`mit-han-lab/dc-ae-f128c512-in-1.0-diffusers`](https://huggingface.co/mit-han-lab/dc-ae-f128c512-in-1.0-diffusers) | [`mit-han-lab/dc-ae-f128c512-in-1.0`](https://huggingface.co/mit-han-lab/dc-ae-f128c512-in-1.0) +| [`mit-han-lab/dc-ae-f128c512-mix-1.0-diffusers`](https://huggingface.co/mit-han-lab/dc-ae-f128c512-mix-1.0-diffusers) | [`mit-han-lab/dc-ae-f128c512-mix-1.0`](https://huggingface.co/mit-han-lab/dc-ae-f128c512-mix-1.0) + +This model was contributed by [lawrence-cj](https://github.com/lawrence-cj). + +Load a model in Diffusers format with [`~ModelMixin.from_pretrained`]. + +```python +from diffusers import AutoencoderDC + +ae = AutoencoderDC.from_pretrained("mit-han-lab/dc-ae-f32c32-sana-1.0-diffusers", torch_dtype=torch.float32).to("cuda") +``` + +## Load a model in Diffusers via `from_single_file` + +```python +from difusers import AutoencoderDC + +ckpt_path = "https://huggingface.co/mit-han-lab/dc-ae-f32c32-sana-1.0/blob/main/model.safetensors" +model = AutoencoderDC.from_single_file(ckpt_path) + +``` + +The `AutoencoderDC` model has `in` and `mix` single file checkpoint variants that have matching checkpoint keys, but use different scaling factors. It is not possible for Diffusers to automatically infer the correct config file to use with the model based on just the checkpoint and will default to configuring the model using the `mix` variant config file. To override the automatically determined config, please use the `config` argument when using single file loading with `in` variant checkpoints. + +```python +from diffusers import AutoencoderDC + +ckpt_path = "https://huggingface.co/mit-han-lab/dc-ae-f128c512-in-1.0/blob/main/model.safetensors" +model = AutoencoderDC.from_single_file(ckpt_path, config="mit-han-lab/dc-ae-f128c512-in-1.0-diffusers") +``` + + +## AutoencoderDC + +[[autodoc]] AutoencoderDC + - encode + - decode + - all + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuan_video.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuan_video.md new file mode 100644 index 0000000000000000000000000000000000000000..b173f9f51e36a18a7e686a3d6fc2331374371e1a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuan_video.md @@ -0,0 +1,32 @@ + + +# AutoencoderKLHunyuanVideo + +The 3D variational autoencoder (VAE) model with KL loss used in [HunyuanVideo](https://github.com/Tencent/HunyuanVideo/), which was introduced in [HunyuanVideo: A Systematic Framework For Large Video Generative Models](https://huggingface.co/papers/2412.03603) by Tencent. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLHunyuanVideo + +vae = AutoencoderKLHunyuanVideo.from_pretrained("hunyuanvideo-community/HunyuanVideo", subfolder="vae", torch_dtype=torch.float16) +``` + +## AutoencoderKLHunyuanVideo + +[[autodoc]] AutoencoderKLHunyuanVideo + - decode + - all + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuanimage.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuanimage.md new file mode 100644 index 0000000000000000000000000000000000000000..60dd2b3ab155066f51379f50a545b3e4191adfd8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuanimage.md @@ -0,0 +1,32 @@ + + +# AutoencoderKLHunyuanImage + +The 2D variational autoencoder (VAE) model with KL loss used in [HunyuanImage2.1]. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLHunyuanImage + +vae = AutoencoderKLHunyuanImage.from_pretrained("hunyuanvideo-community/HunyuanImage-2.1-Diffusers", subfolder="vae", torch_dtype=torch.bfloat16) +``` + +## AutoencoderKLHunyuanImage + +[[autodoc]] AutoencoderKLHunyuanImage + - decode + - all + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuanimage_refiner.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuanimage_refiner.md new file mode 100644 index 0000000000000000000000000000000000000000..5e1dd5e2a24a9e8fbbbd371df0a6c2d09d9cd1c5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_hunyuanimage_refiner.md @@ -0,0 +1,32 @@ + + +# AutoencoderKLHunyuanImageRefiner + +The 3D variational autoencoder (VAE) model with KL loss used in [HunyuanImage2.1](https://github.com/Tencent-Hunyuan/HunyuanImage-2.1) for its refiner pipeline. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLHunyuanImageRefiner + +vae = AutoencoderKLHunyuanImageRefiner.from_pretrained("hunyuanvideo-community/HunyuanImage-2.1-Refiner-Diffusers", subfolder="vae", torch_dtype=torch.bfloat16) +``` + +## AutoencoderKLHunyuanImageRefiner + +[[autodoc]] AutoencoderKLHunyuanImageRefiner + - decode + - all + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_wan.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_wan.md new file mode 100644 index 0000000000000000000000000000000000000000..341e5e9a8736d651676c3715dfd225e369d58803 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_kl_wan.md @@ -0,0 +1,32 @@ + + +# AutoencoderKLWan + +The 3D variational autoencoder (VAE) model with KL loss used in [Wan 2.1](https://github.com/Wan-Video/Wan2.1) by the Alibaba Wan Team. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLWan + +vae = AutoencoderKLWan.from_pretrained("Wan-AI/Wan2.1-T2V-1.3B-Diffusers", subfolder="vae", torch_dtype=torch.float32) +``` + +## AutoencoderKLWan + +[[autodoc]] AutoencoderKLWan + - decode + - all + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_oobleck.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_oobleck.md new file mode 100644 index 0000000000000000000000000000000000000000..2f9184ad730194c7df15fd87e248dce55f20bbaf --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_oobleck.md @@ -0,0 +1,38 @@ + + +# AutoencoderOobleck + +The Oobleck variational autoencoder (VAE) model with KL loss was introduced in [Stability-AI/stable-audio-tools](https://github.com/Stability-AI/stable-audio-tools) and [Stable Audio Open](https://huggingface.co/papers/2407.14358) by Stability AI. The model is used in 🤗 Diffusers to encode audio waveforms into latents and to decode latent representations into audio waveforms. + +The abstract from the paper is: + +*Open generative models are vitally important for the community, allowing for fine-tunes and serving as baselines when presenting new models. However, most current text-to-audio models are private and not accessible for artists and researchers to build upon. Here we describe the architecture and training process of a new open-weights text-to-audio model trained with Creative Commons data. Our evaluation shows that the model's performance is competitive with the state-of-the-art across various metrics. Notably, the reported FDopenl3 results (measuring the realism of the generations) showcase its potential for high-quality stereo sound synthesis at 44.1kHz.* + +## AutoencoderOobleck + +[[autodoc]] AutoencoderOobleck + - decode + - encode + - all + +## OobleckDecoderOutput + +[[autodoc]] models.autoencoders.autoencoder_oobleck.OobleckDecoderOutput + +## OobleckDecoderOutput + +[[autodoc]] models.autoencoders.autoencoder_oobleck.OobleckDecoderOutput + +## AutoencoderOobleckOutput + +[[autodoc]] models.autoencoders.autoencoder_oobleck.AutoencoderOobleckOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_tiny.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_tiny.md new file mode 100644 index 0000000000000000000000000000000000000000..19603f3a88a534cfc6dc4e96c965c500d4c1d21e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoder_tiny.md @@ -0,0 +1,57 @@ + + +# Tiny AutoEncoder + +Tiny AutoEncoder for Stable Diffusion (TAESD) was introduced in [madebyollin/taesd](https://github.com/madebyollin/taesd) by Ollin Boer Bohan. It is a tiny distilled version of Stable Diffusion's VAE that can quickly decode the latents in a [`StableDiffusionPipeline`] or [`StableDiffusionXLPipeline`] almost instantly. + +To use with Stable Diffusion v-2.1: + +```python +import torch +from diffusers import DiffusionPipeline, AutoencoderTiny + +pipe = DiffusionPipeline.from_pretrained( + "stabilityai/stable-diffusion-2-1-base", torch_dtype=torch.float16 +) +pipe.vae = AutoencoderTiny.from_pretrained("madebyollin/taesd", torch_dtype=torch.float16) +pipe = pipe.to("cuda") + +prompt = "slice of delicious New York-style berry cheesecake" +image = pipe(prompt, num_inference_steps=25).images[0] +image +``` + +To use with Stable Diffusion XL 1.0 + +```python +import torch +from diffusers import DiffusionPipeline, AutoencoderTiny + +pipe = DiffusionPipeline.from_pretrained( + "stabilityai/stable-diffusion-xl-base-1.0", torch_dtype=torch.float16 +) +pipe.vae = AutoencoderTiny.from_pretrained("madebyollin/taesdxl", torch_dtype=torch.float16) +pipe = pipe.to("cuda") + +prompt = "slice of delicious New York-style berry cheesecake" +image = pipe(prompt, num_inference_steps=25).images[0] +image +``` + +## AutoencoderTiny + +[[autodoc]] AutoencoderTiny + +## AutoencoderTinyOutput + +[[autodoc]] models.autoencoders.autoencoder_tiny.AutoencoderTinyOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl.md new file mode 100644 index 0000000000000000000000000000000000000000..3d949e9bb06cf0e710357b59bfce653d3385be63 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl.md @@ -0,0 +1,46 @@ + + +# AutoencoderKL + +The variational autoencoder (VAE) model with KL loss was introduced in [Auto-Encoding Variational Bayes](https://huggingface.co/papers/1312.6114v11) by Diederik P. Kingma and Max Welling. The model is used in 🤗 Diffusers to encode images into latents and to decode latent representations into images. + +The abstract from the paper is: + +*How can we perform efficient inference and learning in directed probabilistic models, in the presence of continuous latent variables with intractable posterior distributions, and large datasets? We introduce a stochastic variational inference and learning algorithm that scales to large datasets and, under some mild differentiability conditions, even works in the intractable case. Our contributions are two-fold. First, we show that a reparameterization of the variational lower bound yields a lower bound estimator that can be straightforwardly optimized using standard stochastic gradient methods. Second, we show that for i.i.d. datasets with continuous latent variables per datapoint, posterior inference can be made especially efficient by fitting an approximate inference model (also called a recognition model) to the intractable posterior using the proposed lower bound estimator. Theoretical advantages are reflected in experimental results.* + +## Loading from the original format + +By default the [`AutoencoderKL`] should be loaded with [`~ModelMixin.from_pretrained`], but it can also be loaded +from the original format using [`FromOriginalModelMixin.from_single_file`] as follows: + +```py +from diffusers import AutoencoderKL + +url = "https://huggingface.co/stabilityai/sd-vae-ft-mse-original/blob/main/vae-ft-mse-840000-ema-pruned.safetensors" # can also be a local file +model = AutoencoderKL.from_single_file(url) +``` + +## AutoencoderKL + +[[autodoc]] AutoencoderKL + - decode + - encode + - all + +## AutoencoderKLOutput + +[[autodoc]] models.autoencoders.autoencoder_kl.AutoencoderKLOutput + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_allegro.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_allegro.md new file mode 100644 index 0000000000000000000000000000000000000000..8c79479039fa6ee1db049612a84a09ccdd437310 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_allegro.md @@ -0,0 +1,37 @@ + + +# AutoencoderKLAllegro + +The 3D variational autoencoder (VAE) model with KL loss used in [Allegro](https://github.com/rhymes-ai/Allegro) was introduced in [Allegro: Open the Black Box of Commercial-Level Video Generation Model](https://huggingface.co/papers/2410.15458) by RhymesAI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLAllegro + +vae = AutoencoderKLAllegro.from_pretrained("rhymes-ai/Allegro", subfolder="vae", torch_dtype=torch.float32).to("cuda") +``` + +## AutoencoderKLAllegro + +[[autodoc]] AutoencoderKLAllegro + - decode + - encode + - all + +## AutoencoderKLOutput + +[[autodoc]] models.autoencoders.autoencoder_kl.AutoencoderKLOutput + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_cogvideox.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_cogvideox.md new file mode 100644 index 0000000000000000000000000000000000000000..2c5411a0647c0fb6a0b07922a52c60acc43e9ccc --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_cogvideox.md @@ -0,0 +1,37 @@ + + +# AutoencoderKLCogVideoX + +The 3D variational autoencoder (VAE) model with KL loss used in [CogVideoX](https://github.com/THUDM/CogVideo) was introduced in [CogVideoX: Text-to-Video Diffusion Models with An Expert Transformer](https://github.com/THUDM/CogVideo/blob/main/resources/CogVideoX.pdf) by Tsinghua University & ZhipuAI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLCogVideoX + +vae = AutoencoderKLCogVideoX.from_pretrained("THUDM/CogVideoX-2b", subfolder="vae", torch_dtype=torch.float16).to("cuda") +``` + +## AutoencoderKLCogVideoX + +[[autodoc]] AutoencoderKLCogVideoX + - decode + - encode + - all + +## AutoencoderKLOutput + +[[autodoc]] models.autoencoders.autoencoder_kl.AutoencoderKLOutput + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_cosmos.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_cosmos.md new file mode 100644 index 0000000000000000000000000000000000000000..24f070ac4ef35a3989a9464601750f0ee2d0b9f9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_cosmos.md @@ -0,0 +1,40 @@ + + +# AutoencoderKLCosmos + +[Cosmos Tokenizers](https://github.com/NVIDIA/Cosmos-Tokenizer). + +Supported models: +- [nvidia/Cosmos-1.0-Tokenizer-CV8x8x8](https://huggingface.co/nvidia/Cosmos-1.0-Tokenizer-CV8x8x8) + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLCosmos + +vae = AutoencoderKLCosmos.from_pretrained("nvidia/Cosmos-1.0-Tokenizer-CV8x8x8", subfolder="vae") +``` + +## AutoencoderKLCosmos + +[[autodoc]] AutoencoderKLCosmos + - decode + - encode + - all + +## AutoencoderKLOutput + +[[autodoc]] models.autoencoders.autoencoder_kl.AutoencoderKLOutput + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_ltx_video.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_ltx_video.md new file mode 100644 index 0000000000000000000000000000000000000000..9c2384ca53a17b7a6021b2bad8e2812c1543372f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_ltx_video.md @@ -0,0 +1,37 @@ + + +# AutoencoderKLLTXVideo + +The 3D variational autoencoder (VAE) model with KL loss used in [LTX](https://huggingface.co/Lightricks/LTX-Video) was introduced by Lightricks. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLLTXVideo + +vae = AutoencoderKLLTXVideo.from_pretrained("Lightricks/LTX-Video", subfolder="vae", torch_dtype=torch.float32).to("cuda") +``` + +## AutoencoderKLLTXVideo + +[[autodoc]] AutoencoderKLLTXVideo + - decode + - encode + - all + +## AutoencoderKLOutput + +[[autodoc]] models.autoencoders.autoencoder_kl.AutoencoderKLOutput + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_magvit.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_magvit.md new file mode 100644 index 0000000000000000000000000000000000000000..7c1060ddd435aaeff0058b962bf67bd930a8eac8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_magvit.md @@ -0,0 +1,37 @@ + + +# AutoencoderKLMagvit + +The 3D variational autoencoder (VAE) model with KL loss used in [EasyAnimate](https://github.com/aigc-apps/EasyAnimate) was introduced by Alibaba PAI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLMagvit + +vae = AutoencoderKLMagvit.from_pretrained("alibaba-pai/EasyAnimateV5.1-12b-zh", subfolder="vae", torch_dtype=torch.float16).to("cuda") +``` + +## AutoencoderKLMagvit + +[[autodoc]] AutoencoderKLMagvit + - decode + - encode + - all + +## AutoencoderKLOutput + +[[autodoc]] models.autoencoders.autoencoder_kl.AutoencoderKLOutput + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_mochi.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_mochi.md new file mode 100644 index 0000000000000000000000000000000000000000..fef6645a18fa43bbab6e2f9e681e9248ffafed48 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_mochi.md @@ -0,0 +1,32 @@ + + +# AutoencoderKLMochi + +The 3D variational autoencoder (VAE) model with KL loss used in [Mochi](https://github.com/genmoai/models) was introduced in [Mochi 1 Preview](https://huggingface.co/genmo/mochi-1-preview) by Tsinghua University & ZhipuAI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLMochi + +vae = AutoencoderKLMochi.from_pretrained("genmo/mochi-1-preview", subfolder="vae", torch_dtype=torch.float32).to("cuda") +``` + +## AutoencoderKLMochi + +[[autodoc]] AutoencoderKLMochi + - decode + - all + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_qwenimage.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_qwenimage.md new file mode 100644 index 0000000000000000000000000000000000000000..0e176448e158cd6ec517a9b6b7e0266adbd47623 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/autoencoderkl_qwenimage.md @@ -0,0 +1,35 @@ + + +# AutoencoderKLQwenImage + +The model can be loaded with the following code snippet. + +```python +from diffusers import AutoencoderKLQwenImage + +vae = AutoencoderKLQwenImage.from_pretrained("Qwen/QwenImage-20B", subfolder="vae") +``` + +## AutoencoderKLQwenImage + +[[autodoc]] AutoencoderKLQwenImage + - decode + - encode + - all + +## AutoencoderKLOutput + +[[autodoc]] models.autoencoders.autoencoder_kl.AutoencoderKLOutput + +## DecoderOutput + +[[autodoc]] models.autoencoders.vae.DecoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/bria_transformer.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/bria_transformer.md new file mode 100644 index 0000000000000000000000000000000000000000..9df7eeb6ffcd4c1bb064bcf37d5ad793141a1e0d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/bria_transformer.md @@ -0,0 +1,19 @@ + + +# BriaTransformer2DModel + +A modified flux Transformer model from [Bria](https://huggingface.co/briaai/BRIA-3.2) + +## BriaTransformer2DModel + +[[autodoc]] BriaTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/chroma_transformer.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/chroma_transformer.md new file mode 100644 index 0000000000000000000000000000000000000000..1ef24cda3925efdd88c205233dbc31bd869c4a92 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/chroma_transformer.md @@ -0,0 +1,19 @@ + + +# ChromaTransformer2DModel + +A modified flux Transformer model from [Chroma](https://huggingface.co/lodestones/Chroma1-HD) + +## ChromaTransformer2DModel + +[[autodoc]] ChromaTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/chronoedit_transformer_3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/chronoedit_transformer_3d.md new file mode 100644 index 0000000000000000000000000000000000000000..94982821795d7cdc4221f3b52094297dd9b95427 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/chronoedit_transformer_3d.md @@ -0,0 +1,32 @@ + + +# ChronoEditTransformer3DModel + +A Diffusion Transformer model for 3D video-like data from [ChronoEdit: Towards Temporal Reasoning for Image Editing and World Simulation](https://huggingface.co/papers/2510.04290) from NVIDIA and University of Toronto, by Jay Zhangjie Wu, Xuanchi Ren, Tianchang Shen, Tianshi Cao, Kai He, Yifan Lu, Ruiyuan Gao, Enze Xie, Shiyi Lan, Jose M. Alvarez, Jun Gao, Sanja Fidler, Zian Wang, Huan Ling. + +> **TL;DR:** ChronoEdit reframes image editing as a video generation task, using input and edited images as start/end frames to leverage pretrained video models with temporal consistency. A temporal reasoning stage introduces reasoning tokens to ensure physically plausible edits and visualize the editing trajectory. + +The model can be loaded with the following code snippet. + +```python +from diffusers import ChronoEditTransformer3DModel + +transformer = ChronoEditTransformer3DModel.from_pretrained("nvidia/ChronoEdit-14B-Diffusers", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## ChronoEditTransformer3DModel + +[[autodoc]] ChronoEditTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogvideox_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogvideox_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..5d50e5dca651507c2919ee4727cc23eff0a907e9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogvideox_transformer3d.md @@ -0,0 +1,30 @@ + + +# CogVideoXTransformer3DModel + +A Diffusion Transformer model for 3D data from [CogVideoX](https://github.com/THUDM/CogVideo) was introduced in [CogVideoX: Text-to-Video Diffusion Models with An Expert Transformer](https://github.com/THUDM/CogVideo/blob/main/resources/CogVideoX.pdf) by Tsinghua University & ZhipuAI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import CogVideoXTransformer3DModel + +transformer = CogVideoXTransformer3DModel.from_pretrained("THUDM/CogVideoX-2b", subfolder="transformer", torch_dtype=torch.float16).to("cuda") +``` + +## CogVideoXTransformer3DModel + +[[autodoc]] CogVideoXTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogview3plus_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogview3plus_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..1fe574a7fb2faa527509b3fd20354a1f9b702d6e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogview3plus_transformer2d.md @@ -0,0 +1,30 @@ + + +# CogView3PlusTransformer2DModel + +A Diffusion Transformer model for 2D data from [CogView3Plus](https://github.com/THUDM/CogView3) was introduced in [CogView3: Finer and Faster Text-to-Image Generation via Relay Diffusion](https://huggingface.co/papers/2403.05121) by Tsinghua University & ZhipuAI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import CogView3PlusTransformer2DModel + +transformer = CogView3PlusTransformer2DModel.from_pretrained("THUDM/CogView3Plus-3b", subfolder="transformer", torch_dtype=torch.bfloat16).to("cuda") +``` + +## CogView3PlusTransformer2DModel + +[[autodoc]] CogView3PlusTransformer2DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogview4_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogview4_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..e87fbc680968cd20f34cea5257e0ec75449ec0a8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cogview4_transformer2d.md @@ -0,0 +1,30 @@ + + +# CogView4Transformer2DModel + +A Diffusion Transformer model for 2D data from [CogView4]() + +The model can be loaded with the following code snippet. + +```python +from diffusers import CogView4Transformer2DModel + +transformer = CogView4Transformer2DModel.from_pretrained("THUDM/CogView4-6B", subfolder="transformer", torch_dtype=torch.bfloat16).to("cuda") +``` + +## CogView4Transformer2DModel + +[[autodoc]] CogView4Transformer2DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/consisid_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/consisid_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..0531d475d2fb229854c9d1b1318c493c1eba3047 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/consisid_transformer3d.md @@ -0,0 +1,30 @@ + + +# ConsisIDTransformer3DModel + +A Diffusion Transformer model for 3D data from [ConsisID](https://github.com/PKU-YuanGroup/ConsisID) was introduced in [Identity-Preserving Text-to-Video Generation by Frequency Decomposition](https://huggingface.co/papers/2411.17440) by Peking University & University of Rochester & etc. + +The model can be loaded with the following code snippet. + +```python +from diffusers import ConsisIDTransformer3DModel + +transformer = ConsisIDTransformer3DModel.from_pretrained("BestWishYsh/ConsisID-preview", subfolder="transformer", torch_dtype=torch.bfloat16).to("cuda") +``` + +## ConsisIDTransformer3DModel + +[[autodoc]] ConsisIDTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/consistency_decoder_vae.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/consistency_decoder_vae.md new file mode 100644 index 0000000000000000000000000000000000000000..fe039df7f9bf3daab885814158087b766d1216e9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/consistency_decoder_vae.md @@ -0,0 +1,27 @@ + + +# Consistency Decoder + +Consistency decoder can be used to decode the latents from the denoising UNet in the [`StableDiffusionPipeline`]. This decoder was introduced in the [DALL-E 3 technical report](https://openai.com/dall-e-3). + +The original codebase can be found at [openai/consistencydecoder](https://github.com/openai/consistencydecoder). + +> [!WARNING] +> Inference is only supported for 2 iterations as of now. + +The pipeline could not have been contributed without the help of [madebyollin](https://github.com/madebyollin) and [mrsteyk](https://github.com/mrsteyk) from [this issue](https://github.com/openai/consistencydecoder/issues/1). + +## ConsistencyDecoderVAE +[[autodoc]] ConsistencyDecoderVAE + - all + - decode diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet.md new file mode 100644 index 0000000000000000000000000000000000000000..f56b7383a0d71d9e2746db569f78edf97cea0bd4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet.md @@ -0,0 +1,42 @@ + + +# ControlNetModel + +The ControlNet model was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, Maneesh Agrawala. It provides a greater degree of control over text-to-image generation by conditioning the model on additional inputs such as edge maps, depth maps, segmentation maps, and keypoints for pose detection. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +## Loading from the original format + +By default the [`ControlNetModel`] should be loaded with [`~ModelMixin.from_pretrained`], but it can also be loaded +from the original format using [`FromOriginalModelMixin.from_single_file`] as follows: + +```py +from diffusers import StableDiffusionControlNetPipeline, ControlNetModel + +url = "https://huggingface.co/lllyasviel/ControlNet-v1-1/blob/main/control_v11p_sd15_canny.pth" # can also be a local path +controlnet = ControlNetModel.from_single_file(url) + +url = "https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5/blob/main/v1-5-pruned.safetensors" # can also be a local path +pipe = StableDiffusionControlNetPipeline.from_single_file(url, controlnet=controlnet) +``` + +## ControlNetModel + +[[autodoc]] ControlNetModel + +## ControlNetOutput + +[[autodoc]] models.controlnets.controlnet.ControlNetOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_flux.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_flux.md new file mode 100644 index 0000000000000000000000000000000000000000..6b230d90fba3c153ec3e1c2e4bac8c8b4c42e039 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_flux.md @@ -0,0 +1,45 @@ + + +# FluxControlNetModel + +FluxControlNetModel is an implementation of ControlNet for Flux.1. + +The ControlNet model was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, Maneesh Agrawala. It provides a greater degree of control over text-to-image generation by conditioning the model on additional inputs such as edge maps, depth maps, segmentation maps, and keypoints for pose detection. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +## Loading from the original format + +By default the [`FluxControlNetModel`] should be loaded with [`~ModelMixin.from_pretrained`]. + +```py +from diffusers import FluxControlNetPipeline +from diffusers.models import FluxControlNetModel, FluxMultiControlNetModel + +controlnet = FluxControlNetModel.from_pretrained("InstantX/FLUX.1-dev-Controlnet-Canny") +pipe = FluxControlNetPipeline.from_pretrained("black-forest-labs/FLUX.1-dev", controlnet=controlnet) + +controlnet = FluxControlNetModel.from_pretrained("InstantX/FLUX.1-dev-Controlnet-Canny") +controlnet = FluxMultiControlNetModel([controlnet]) +pipe = FluxControlNetPipeline.from_pretrained("black-forest-labs/FLUX.1-dev", controlnet=controlnet) +``` + +## FluxControlNetModel + +[[autodoc]] FluxControlNetModel + +## FluxControlNetOutput + +[[autodoc]] models.controlnet_flux.FluxControlNetOutput \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_hunyuandit.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_hunyuandit.md new file mode 100644 index 0000000000000000000000000000000000000000..2ea5ab4b88d49a2afa0c9ffd1bf25b97503d1320 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_hunyuandit.md @@ -0,0 +1,37 @@ + + +# HunyuanDiT2DControlNetModel + +HunyuanDiT2DControlNetModel is an implementation of ControlNet for [Hunyuan-DiT](https://huggingface.co/papers/2405.08748). + +ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. + +With a ControlNet model, you can provide an additional control image to condition and control Hunyuan-DiT generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +This code is implemented by Tencent Hunyuan Team. You can find pre-trained checkpoints for Hunyuan-DiT ControlNets on [Tencent Hunyuan](https://huggingface.co/Tencent-Hunyuan). + +## Example For Loading HunyuanDiT2DControlNetModel + +```py +from diffusers import HunyuanDiT2DControlNetModel +import torch +controlnet = HunyuanDiT2DControlNetModel.from_pretrained("Tencent-Hunyuan/HunyuanDiT-v1.1-ControlNet-Diffusers-Pose", torch_dtype=torch.float16) +``` + +## HunyuanDiT2DControlNetModel + +[[autodoc]] HunyuanDiT2DControlNetModel \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sana.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sana.md new file mode 100644 index 0000000000000000000000000000000000000000..fe7b184c901fb78739457e4eceee70e8a28985ed --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sana.md @@ -0,0 +1,29 @@ + + +# SanaControlNetModel + +The ControlNet model was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, Maneesh Agrawala. It provides a greater degree of control over text-to-image generation by conditioning the model on additional inputs such as edge maps, depth maps, segmentation maps, and keypoints for pose detection. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +This model was contributed by [ishan24](https://huggingface.co/ishan24). ❤️ +The original codebase can be found at [NVlabs/Sana](https://github.com/NVlabs/Sana), and you can find official ControlNet checkpoints on [Efficient-Large-Model's](https://huggingface.co/Efficient-Large-Model) Hub profile. + +## SanaControlNetModel +[[autodoc]] SanaControlNetModel + +## SanaControlNetOutput +[[autodoc]] models.controlnets.controlnet_sana.SanaControlNetOutput + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sd3.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sd3.md new file mode 100644 index 0000000000000000000000000000000000000000..f665dde3a00710712386dd93764a36b4ab588351 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sd3.md @@ -0,0 +1,42 @@ + + +# SD3ControlNetModel + +SD3ControlNetModel is an implementation of ControlNet for Stable Diffusion 3. + +The ControlNet model was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, Maneesh Agrawala. It provides a greater degree of control over text-to-image generation by conditioning the model on additional inputs such as edge maps, depth maps, segmentation maps, and keypoints for pose detection. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +## Loading from the original format + +By default the [`SD3ControlNetModel`] should be loaded with [`~ModelMixin.from_pretrained`]. + +```py +from diffusers import StableDiffusion3ControlNetPipeline +from diffusers.models import SD3ControlNetModel, SD3MultiControlNetModel + +controlnet = SD3ControlNetModel.from_pretrained("InstantX/SD3-Controlnet-Canny") +pipe = StableDiffusion3ControlNetPipeline.from_pretrained("stabilityai/stable-diffusion-3-medium-diffusers", controlnet=controlnet) +``` + +## SD3ControlNetModel + +[[autodoc]] SD3ControlNetModel + +## SD3ControlNetOutput + +[[autodoc]] models.controlnets.controlnet_sd3.SD3ControlNetOutput + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sparsectrl.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sparsectrl.md new file mode 100644 index 0000000000000000000000000000000000000000..b9e81dc57eeb71d533dc7f59df9e25537456892f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_sparsectrl.md @@ -0,0 +1,46 @@ + + +# SparseControlNetModel + +SparseControlNetModel is an implementation of ControlNet for [AnimateDiff](https://huggingface.co/papers/2307.04725). + +ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. + +The SparseCtrl version of ControlNet was introduced in [SparseCtrl: Adding Sparse Controls to Text-to-Video Diffusion Models](https://huggingface.co/papers/2311.16933) for achieving controlled generation in text-to-video diffusion models by Yuwei Guo, Ceyuan Yang, Anyi Rao, Maneesh Agrawala, Dahua Lin, and Bo Dai. + +The abstract from the paper is: + +*The development of text-to-video (T2V), i.e., generating videos with a given text prompt, has been significantly advanced in recent years. However, relying solely on text prompts often results in ambiguous frame composition due to spatial uncertainty. The research community thus leverages the dense structure signals, e.g., per-frame depth/edge sequences, to enhance controllability, whose collection accordingly increases the burden of inference. In this work, we present SparseCtrl to enable flexible structure control with temporally sparse signals, requiring only one or a few inputs, as shown in Figure 1. It incorporates an additional condition encoder to process these sparse signals while leaving the pre-trained T2V model untouched. The proposed approach is compatible with various modalities, including sketches, depth maps, and RGB images, providing more practical control for video generation and promoting applications such as storyboarding, depth rendering, keyframe animation, and interpolation. Extensive experiments demonstrate the generalization of SparseCtrl on both original and personalized T2V generators. Codes and models will be publicly available at [this https URL](https://guoyww.github.io/projects/SparseCtrl).* + +## Example for loading SparseControlNetModel + +```python +import torch +from diffusers import SparseControlNetModel + +# fp32 variant in float16 +# 1. Scribble checkpoint +controlnet = SparseControlNetModel.from_pretrained("guoyww/animatediff-sparsectrl-scribble", torch_dtype=torch.float16) + +# 2. RGB checkpoint +controlnet = SparseControlNetModel.from_pretrained("guoyww/animatediff-sparsectrl-rgb", torch_dtype=torch.float16) + +# For loading fp16 variant, pass `variant="fp16"` as an additional parameter +``` + +## SparseControlNetModel + +[[autodoc]] SparseControlNetModel + +## SparseControlNetOutput + +[[autodoc]] models.controlnet_sparsectrl.SparseControlNetOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_union.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_union.md new file mode 100644 index 0000000000000000000000000000000000000000..466718269758eabc04c0fa393f0fc3fe7c738ef2 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/controlnet_union.md @@ -0,0 +1,35 @@ + + +# ControlNetUnionModel + +ControlNetUnionModel is an implementation of ControlNet for Stable Diffusion XL. + +The ControlNet model was introduced in [ControlNetPlus](https://github.com/xinsir6/ControlNetPlus) by xinsir6. It supports multiple conditioning inputs without increasing computation. + +*We design a new architecture that can support 10+ control types in condition text-to-image generation and can generate high resolution images visually comparable with midjourney. The network is based on the original ControlNet architecture, we propose two new modules to: 1 Extend the original ControlNet to support different image conditions using the same network parameter. 2 Support multiple conditions input without increasing computation offload, which is especially important for designers who want to edit image in detail, different conditions use the same condition encoder, without adding extra computations or parameters.* + +## Loading + +By default the [`ControlNetUnionModel`] should be loaded with [`~ModelMixin.from_pretrained`]. + +```py +from diffusers import StableDiffusionXLControlNetUnionPipeline, ControlNetUnionModel + +controlnet = ControlNetUnionModel.from_pretrained("xinsir/controlnet-union-sdxl-1.0") +pipe = StableDiffusionXLControlNetUnionPipeline.from_pretrained("stabilityai/stable-diffusion-xl-base-1.0", controlnet=controlnet) +``` + +## ControlNetUnionModel + +[[autodoc]] ControlNetUnionModel + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cosmos_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cosmos_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..eb52c82e5f05e39a1feaee8208435f3d11c7df63 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/cosmos_transformer3d.md @@ -0,0 +1,30 @@ + + +# CosmosTransformer3DModel + +A Diffusion Transformer model for 3D video-like data was introduced in [Cosmos World Foundation Model Platform for Physical AI](https://huggingface.co/papers/2501.03575) by NVIDIA. + +The model can be loaded with the following code snippet. + +```python +from diffusers import CosmosTransformer3DModel + +transformer = CosmosTransformer3DModel.from_pretrained("nvidia/Cosmos-1.0-Diffusion-7B-Text2World", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## CosmosTransformer3DModel + +[[autodoc]] CosmosTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/dit_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/dit_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..640bd31feeef563613b5ffcc825351ac737ea0f0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/dit_transformer2d.md @@ -0,0 +1,19 @@ + + +# DiTTransformer2DModel + +A Transformer model for image-like data from [DiT](https://huggingface.co/papers/2212.09748). + +## DiTTransformer2DModel + +[[autodoc]] DiTTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/easyanimate_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/easyanimate_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..66670eb632d400849643421371a720d261c0dfc0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/easyanimate_transformer3d.md @@ -0,0 +1,30 @@ + + +# EasyAnimateTransformer3DModel + +A Diffusion Transformer model for 3D data from [EasyAnimate](https://github.com/aigc-apps/EasyAnimate) was introduced by Alibaba PAI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import EasyAnimateTransformer3DModel + +transformer = EasyAnimateTransformer3DModel.from_pretrained("alibaba-pai/EasyAnimateV5.1-12b-zh", subfolder="transformer", torch_dtype=torch.float16).to("cuda") +``` + +## EasyAnimateTransformer3DModel + +[[autodoc]] EasyAnimateTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/flux_transformer.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/flux_transformer.md new file mode 100644 index 0000000000000000000000000000000000000000..d1ccb1a242b3908f719f2b4ace8768067f1c9fe9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/flux_transformer.md @@ -0,0 +1,19 @@ + + +# FluxTransformer2DModel + +A Transformer model for image-like data from [Flux](https://blackforestlabs.ai/announcing-black-forest-labs/). + +## FluxTransformer2DModel + +[[autodoc]] FluxTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hidream_image_transformer.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hidream_image_transformer.md new file mode 100644 index 0000000000000000000000000000000000000000..b562c2f8543c3cc84a98fbe4355d38d7285ed540 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hidream_image_transformer.md @@ -0,0 +1,46 @@ + + +# HiDreamImageTransformer2DModel + +A Transformer model for image-like data from [HiDream-I1](https://huggingface.co/HiDream-ai). + +The model can be loaded with the following code snippet. + +```python +from diffusers import HiDreamImageTransformer2DModel + +transformer = HiDreamImageTransformer2DModel.from_pretrained("HiDream-ai/HiDream-I1-Full", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## Loading GGUF quantized checkpoints for HiDream-I1 + +GGUF checkpoints for the `HiDreamImageTransformer2DModel` can be loaded using `~FromOriginalModelMixin.from_single_file` + +```python +import torch +from diffusers import GGUFQuantizationConfig, HiDreamImageTransformer2DModel + +ckpt_path = "https://huggingface.co/city96/HiDream-I1-Dev-gguf/blob/main/hidream-i1-dev-Q2_K.gguf" +transformer = HiDreamImageTransformer2DModel.from_single_file( + ckpt_path, + quantization_config=GGUFQuantizationConfig(compute_dtype=torch.bfloat16), + torch_dtype=torch.bfloat16 +) +``` + +## HiDreamImageTransformer2DModel + +[[autodoc]] HiDreamImageTransformer2DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuan_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuan_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..4e2d38f3233acc75c5fc22ec2a764830da52b659 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuan_transformer2d.md @@ -0,0 +1,20 @@ + + +# HunyuanDiT2DModel + +A Diffusion Transformer model for 2D data from [Hunyuan-DiT](https://github.com/Tencent/HunyuanDiT). + +## HunyuanDiT2DModel + +[[autodoc]] HunyuanDiT2DModel + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuan_video_transformer_3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuan_video_transformer_3d.md new file mode 100644 index 0000000000000000000000000000000000000000..77d30e5553bcf8db7a897243af223a1987d27104 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuan_video_transformer_3d.md @@ -0,0 +1,30 @@ + + +# HunyuanVideoTransformer3DModel + +A Diffusion Transformer model for 3D video-like data was introduced in [HunyuanVideo: A Systematic Framework For Large Video Generative Models](https://huggingface.co/papers/2412.03603) by Tencent. + +The model can be loaded with the following code snippet. + +```python +from diffusers import HunyuanVideoTransformer3DModel + +transformer = HunyuanVideoTransformer3DModel.from_pretrained("hunyuanvideo-community/HunyuanVideo", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## HunyuanVideoTransformer3DModel + +[[autodoc]] HunyuanVideoTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuanimage_transformer_2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuanimage_transformer_2d.md new file mode 100644 index 0000000000000000000000000000000000000000..2dd8e6b52d522a7fb8ce0e7076a1fd53c8851b50 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/hunyuanimage_transformer_2d.md @@ -0,0 +1,30 @@ + + +# HunyuanImageTransformer2DModel + +A Diffusion Transformer model for [HunyuanImage2.1](https://github.com/Tencent-Hunyuan/HunyuanImage-2.1). + +The model can be loaded with the following code snippet. + +```python +from diffusers import HunyuanImageTransformer2DModel + +transformer = HunyuanImageTransformer2DModel.from_pretrained("hunyuanvideo-community/HunyuanImage-2.1-Diffusers", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## HunyuanImageTransformer2DModel + +[[autodoc]] HunyuanImageTransformer2DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/latte_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/latte_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..6182f403ea48ebf9de267442dde75f5e833e443d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/latte_transformer3d.md @@ -0,0 +1,19 @@ + + +## LatteTransformer3DModel + +A Diffusion Transformer model for 3D data from [Latte](https://github.com/Vchitect/Latte). + +## LatteTransformer3DModel + +[[autodoc]] LatteTransformer3DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/ltx_video_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/ltx_video_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..5a2a1af9d821a75ed0b4145c2e6c8f92ae2eecaa --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/ltx_video_transformer3d.md @@ -0,0 +1,30 @@ + + +# LTXVideoTransformer3DModel + +A Diffusion Transformer model for 3D data from [LTX](https://huggingface.co/Lightricks/LTX-Video) was introduced by Lightricks. + +The model can be loaded with the following code snippet. + +```python +from diffusers import LTXVideoTransformer3DModel + +transformer = LTXVideoTransformer3DModel.from_pretrained("Lightricks/LTX-Video", subfolder="transformer", torch_dtype=torch.bfloat16).to("cuda") +``` + +## LTXVideoTransformer3DModel + +[[autodoc]] LTXVideoTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/lumina2_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/lumina2_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..2c85325f73f58e5b9ec847938dc40a67ea99f0a3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/lumina2_transformer2d.md @@ -0,0 +1,30 @@ + + +# Lumina2Transformer2DModel + +A Diffusion Transformer model for 3D video-like data was introduced in [Lumina Image 2.0](https://huggingface.co/Alpha-VLLM/Lumina-Image-2.0) by Alpha-VLLM. + +The model can be loaded with the following code snippet. + +```python +from diffusers import Lumina2Transformer2DModel + +transformer = Lumina2Transformer2DModel.from_pretrained("Alpha-VLLM/Lumina-Image-2.0", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## Lumina2Transformer2DModel + +[[autodoc]] Lumina2Transformer2DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/lumina_nextdit2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/lumina_nextdit2d.md new file mode 100644 index 0000000000000000000000000000000000000000..1b898b2cda76edb674e25d47ca9f214b65b64687 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/lumina_nextdit2d.md @@ -0,0 +1,20 @@ + + +# LuminaNextDiT2DModel + +A Next Version of Diffusion Transformer model for 2D data from [Lumina-T2X](https://github.com/Alpha-VLLM/Lumina-T2X). + +## LuminaNextDiT2DModel + +[[autodoc]] LuminaNextDiT2DModel + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/mochi_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/mochi_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..6c8c21ce91cd1f79756a9d4ba0cb31de524b8d67 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/mochi_transformer3d.md @@ -0,0 +1,30 @@ + + +# MochiTransformer3DModel + +A Diffusion Transformer model for 3D video-like data was introduced in [Mochi-1 Preview](https://huggingface.co/genmo/mochi-1-preview) by Genmo. + +The model can be loaded with the following code snippet. + +```python +from diffusers import MochiTransformer3DModel + +transformer = MochiTransformer3DModel.from_pretrained("genmo/mochi-1-preview", subfolder="transformer", torch_dtype=torch.float16).to("cuda") +``` + +## MochiTransformer3DModel + +[[autodoc]] MochiTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/omnigen_transformer.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/omnigen_transformer.md new file mode 100644 index 0000000000000000000000000000000000000000..a2584bc8e76db6badd20608489b6ed0f5f0b4661 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/omnigen_transformer.md @@ -0,0 +1,30 @@ + + +# OmniGenTransformer2DModel + +A Transformer model that accepts multimodal instructions to generate images for [OmniGen](https://github.com/VectorSpaceLab/OmniGen/). + +The abstract from the paper is: + +*The emergence of Large Language Models (LLMs) has unified language generation tasks and revolutionized human-machine interaction. However, in the realm of image generation, a unified model capable of handling various tasks within a single framework remains largely unexplored. In this work, we introduce OmniGen, a new diffusion model for unified image generation. OmniGen is characterized by the following features: 1) Unification: OmniGen not only demonstrates text-to-image generation capabilities but also inherently supports various downstream tasks, such as image editing, subject-driven generation, and visual conditional generation. 2) Simplicity: The architecture of OmniGen is highly simplified, eliminating the need for additional plugins. Moreover, compared to existing diffusion models, it is more user-friendly and can complete complex tasks end-to-end through instructions without the need for extra intermediate steps, greatly simplifying the image generation workflow. 3) Knowledge Transfer: Benefit from learning in a unified format, OmniGen effectively transfers knowledge across different tasks, manages unseen tasks and domains, and exhibits novel capabilities. We also explore the model’s reasoning capabilities and potential applications of the chain-of-thought mechanism. This work represents the first attempt at a general-purpose image generation model, and we will release our resources at https://github.com/VectorSpaceLab/OmniGen to foster future advancements.* + +```python +import torch +from diffusers import OmniGenTransformer2DModel + +transformer = OmniGenTransformer2DModel.from_pretrained("Shitao/OmniGen-v1-diffusers", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## OmniGenTransformer2DModel + +[[autodoc]] OmniGenTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/overview.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/overview.md new file mode 100644 index 0000000000000000000000000000000000000000..eb9722739f994790bba332be3ac78fbd68d14f9b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/overview.md @@ -0,0 +1,24 @@ + + +# Models + +🤗 Diffusers provides pretrained models for popular algorithms and modules to create custom diffusion systems. The primary function of models is to denoise an input sample as modeled by the distribution \\(p_{\theta}(x_{t-1}|x_{t})\\). + +All models are built from the base [`ModelMixin`] class which is a [`torch.nn.Module`](https://pytorch.org/docs/stable/generated/torch.nn.Module.html) providing basic functionality for saving and loading models, locally and from the Hugging Face Hub. + +## ModelMixin +[[autodoc]] ModelMixin + +## PushToHubMixin + +[[autodoc]] utils.PushToHubMixin diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/pixart_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/pixart_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..a5a08b611334136d9583b8251de24a08558435a5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/pixart_transformer2d.md @@ -0,0 +1,19 @@ + + +# PixArtTransformer2DModel + +A Transformer model for image-like data from [PixArt-Alpha](https://huggingface.co/papers/2310.00426) and [PixArt-Sigma](https://huggingface.co/papers/2403.04692). + +## PixArtTransformer2DModel + +[[autodoc]] PixArtTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/prior_transformer.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/prior_transformer.md new file mode 100644 index 0000000000000000000000000000000000000000..72bb418abb0ae8ac75db6e9b6262f0f37f0af76f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/prior_transformer.md @@ -0,0 +1,27 @@ + + +# PriorTransformer + +The Prior Transformer was originally introduced in [Hierarchical Text-Conditional Image Generation with CLIP Latents](https://huggingface.co/papers/2204.06125) by Ramesh et al. It is used to predict CLIP image embeddings from CLIP text embeddings; image embeddings are predicted through a denoising diffusion process. + +The abstract from the paper is: + +*Contrastive models like CLIP have been shown to learn robust representations of images that capture both semantics and style. To leverage these representations for image generation, we propose a two-stage model: a prior that generates a CLIP image embedding given a text caption, and a decoder that generates an image conditioned on the image embedding. We show that explicitly generating image representations improves image diversity with minimal loss in photorealism and caption similarity. Our decoders conditioned on image representations can also produce variations of an image that preserve both its semantics and style, while varying the non-essential details absent from the image representation. Moreover, the joint embedding space of CLIP enables language-guided image manipulations in a zero-shot fashion. We use diffusion models for the decoder and experiment with both autoregressive and diffusion models for the prior, finding that the latter are computationally more efficient and produce higher-quality samples.* + +## PriorTransformer + +[[autodoc]] PriorTransformer + +## PriorTransformerOutput + +[[autodoc]] models.transformers.prior_transformer.PriorTransformerOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/qwenimage_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/qwenimage_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..c78623084e1c686b90aa01a7a778f5f0fb971496 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/qwenimage_transformer2d.md @@ -0,0 +1,28 @@ + + +# QwenImageTransformer2DModel + +The model can be loaded with the following code snippet. + +```python +from diffusers import QwenImageTransformer2DModel + +transformer = QwenImageTransformer2DModel.from_pretrained("Qwen/QwenImage-20B", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## QwenImageTransformer2DModel + +[[autodoc]] QwenImageTransformer2DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sana_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sana_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..e3e5fde3a79e16642bcfdf3fdd85209f7b452dd7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sana_transformer2d.md @@ -0,0 +1,34 @@ + + +# SanaTransformer2DModel + +A Diffusion Transformer model for 2D data from [SANA: Efficient High-Resolution Image Synthesis with Linear Diffusion Transformers](https://huggingface.co/papers/2410.10629) was introduced from NVIDIA and MIT HAN Lab, by Enze Xie, Junsong Chen, Junyu Chen, Han Cai, Haotian Tang, Yujun Lin, Zhekai Zhang, Muyang Li, Ligeng Zhu, Yao Lu, Song Han. + +The abstract from the paper is: + +*We introduce Sana, a text-to-image framework that can efficiently generate images up to 4096×4096 resolution. Sana can synthesize high-resolution, high-quality images with strong text-image alignment at a remarkably fast speed, deployable on laptop GPU. Core designs include: (1) Deep compression autoencoder: unlike traditional AEs, which compress images only 8×, we trained an AE that can compress images 32×, effectively reducing the number of latent tokens. (2) Linear DiT: we replace all vanilla attention in DiT with linear attention, which is more efficient at high resolutions without sacrificing quality. (3) Decoder-only text encoder: we replaced T5 with modern decoder-only small LLM as the text encoder and designed complex human instruction with in-context learning to enhance the image-text alignment. (4) Efficient training and sampling: we propose Flow-DPM-Solver to reduce sampling steps, with efficient caption labeling and selection to accelerate convergence. As a result, Sana-0.6B is very competitive with modern giant diffusion model (e.g. Flux-12B), being 20 times smaller and 100+ times faster in measured throughput. Moreover, Sana-0.6B can be deployed on a 16GB laptop GPU, taking less than 1 second to generate a 1024×1024 resolution image. Sana enables content creation at low cost. Code and model will be publicly released.* + +The model can be loaded with the following code snippet. + +```python +from diffusers import SanaTransformer2DModel + +transformer = SanaTransformer2DModel.from_pretrained("Efficient-Large-Model/Sana_1600M_1024px_BF16_diffusers", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## SanaTransformer2DModel + +[[autodoc]] SanaTransformer2DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sana_video_transformer3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sana_video_transformer3d.md new file mode 100644 index 0000000000000000000000000000000000000000..0cf1451a2d3977cf25a2e1dd363e07690625b2c8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sana_video_transformer3d.md @@ -0,0 +1,36 @@ + + +# SanaVideoTransformer3DModel + +A Diffusion Transformer model for 3D data (video) from [SANA-Video: Efficient Video Generation with Block Linear Diffusion Transformer](https://huggingface.co/papers/2509.24695) from NVIDIA and MIT HAN Lab, by Junsong Chen, Yuyang Zhao, Jincheng Yu, Ruihang Chu, Junyu Chen, Shuai Yang, Xianbang Wang, Yicheng Pan, Daquan Zhou, Huan Ling, Haozhe Liu, Hongwei Yi, Hao Zhang, Muyang Li, Yukang Chen, Han Cai, Sanja Fidler, Ping Luo, Song Han, Enze Xie. + +The abstract from the paper is: + +*We introduce SANA-Video, a small diffusion model that can efficiently generate videos up to 720x1280 resolution and minute-length duration. SANA-Video synthesizes high-resolution, high-quality and long videos with strong text-video alignment at a remarkably fast speed, deployable on RTX 5090 GPU. Two core designs ensure our efficient, effective and long video generation: (1) Linear DiT: We leverage linear attention as the core operation, which is more efficient than vanilla attention given the large number of tokens processed in video generation. (2) Constant-Memory KV cache for Block Linear Attention: we design block-wise autoregressive approach for long video generation by employing a constant-memory state, derived from the cumulative properties of linear attention. This KV cache provides the Linear DiT with global context at a fixed memory cost, eliminating the need for a traditional KV cache and enabling efficient, minute-long video generation. In addition, we explore effective data filters and model training strategies, narrowing the training cost to 12 days on 64 H100 GPUs, which is only 1% of the cost of MovieGen. Given its low cost, SANA-Video achieves competitive performance compared to modern state-of-the-art small diffusion models (e.g., Wan 2.1-1.3B and SkyReel-V2-1.3B) while being 16x faster in measured latency. Moreover, SANA-Video can be deployed on RTX 5090 GPUs with NVFP4 precision, accelerating the inference speed of generating a 5-second 720p video from 71s to 29s (2.4x speedup). In summary, SANA-Video enables low-cost, high-quality video generation.* + +The model can be loaded with the following code snippet. + +```python +from diffusers import SanaVideoTransformer3DModel +import torch + +transformer = SanaVideoTransformer3DModel.from_pretrained("Efficient-Large-Model/SANA-Video_2B_480p_diffusers", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## SanaVideoTransformer3DModel + +[[autodoc]] SanaVideoTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sd3_transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sd3_transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..f4fc4c65826ca9ca9c7e81bb398c8a3b71bf5bcc --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/sd3_transformer2d.md @@ -0,0 +1,19 @@ + + +# SD3 Transformer Model + +The Transformer model introduced in [Stable Diffusion 3](https://hf.co/papers/2403.03206). Its novelty lies in the MMDiT transformer block. + +## SD3Transformer2DModel + +[[autodoc]] SD3Transformer2DModel \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/skyreels_v2_transformer_3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/skyreels_v2_transformer_3d.md new file mode 100644 index 0000000000000000000000000000000000000000..c1c8c2c7bcce6d2e4646e0bdd52e1669c3d4a8e1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/skyreels_v2_transformer_3d.md @@ -0,0 +1,30 @@ + + +# SkyReelsV2Transformer3DModel + +A Diffusion Transformer model for 3D video-like data was introduced in [SkyReels-V2](https://github.com/SkyworkAI/SkyReels-V2) by the Skywork AI. + +The model can be loaded with the following code snippet. + +```python +from diffusers import SkyReelsV2Transformer3DModel + +transformer = SkyReelsV2Transformer3DModel.from_pretrained("Skywork/SkyReels-V2-DF-1.3B-540P-Diffusers", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## SkyReelsV2Transformer3DModel + +[[autodoc]] SkyReelsV2Transformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/stable_audio_transformer.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/stable_audio_transformer.md new file mode 100644 index 0000000000000000000000000000000000000000..50a936b43ef4ea9e956a1b4be550f8d137808c09 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/stable_audio_transformer.md @@ -0,0 +1,19 @@ + + +# StableAudioDiTModel + +A Transformer model for audio waveforms from [Stable Audio Open](https://huggingface.co/papers/2407.14358). + +## StableAudioDiTModel + +[[autodoc]] StableAudioDiTModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/stable_cascade_unet.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/stable_cascade_unet.md new file mode 100644 index 0000000000000000000000000000000000000000..36bb38a8cb047c0b183482e93342dfa01ed9024c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/stable_cascade_unet.md @@ -0,0 +1,19 @@ + + +# StableCascadeUNet + +A UNet model from the [Stable Cascade pipeline](../pipelines/stable_cascade.md). + +## StableCascadeUNet + +[[autodoc]] models.unets.unet_stable_cascade.StableCascadeUNet diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer2d.md new file mode 100644 index 0000000000000000000000000000000000000000..d8e0a858b0e744e4edfbe131a2439092d7b74def --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer2d.md @@ -0,0 +1,38 @@ + + +# Transformer2DModel + +A Transformer model for image-like data from [CompVis](https://huggingface.co/CompVis) that is based on the [Vision Transformer](https://huggingface.co/papers/2010.11929) introduced by Dosovitskiy et al. The [`Transformer2DModel`] accepts discrete (classes of vector embeddings) or continuous (actual embeddings) inputs. + +When the input is **continuous**: + +1. Project the input and reshape it to `(batch_size, sequence_length, feature_dimension)`. +2. Apply the Transformer blocks in the standard way. +3. Reshape to image. + +When the input is **discrete**: + +> [!TIP] +> It is assumed one of the input classes is the masked latent pixel. The predicted classes of the unnoised image don't contain a prediction for the masked pixel because the unnoised image cannot be masked. + +1. Convert input (classes of latent pixels) to embeddings and apply positional embeddings. +2. Apply the Transformer blocks in the standard way. +3. Predict classes of unnoised image. + +## Transformer2DModel + +[[autodoc]] Transformer2DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer_bria_fibo.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer_bria_fibo.md new file mode 100644 index 0000000000000000000000000000000000000000..5691746ccd7834935352fecc99d8d2bc5d128106 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer_bria_fibo.md @@ -0,0 +1,19 @@ + + +# BriaFiboTransformer2DModel + +A modified flux Transformer model from [Bria](https://huggingface.co/briaai/FIBO) + +## BriaFiboTransformer2DModel + +[[autodoc]] BriaFiboTransformer2DModel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer_temporal.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer_temporal.md new file mode 100644 index 0000000000000000000000000000000000000000..e89afeeffeb300aa85b18ce1934578f69279e9c1 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/transformer_temporal.md @@ -0,0 +1,23 @@ + + +# TransformerTemporalModel + +A Transformer model for video-like data. + +## TransformerTemporalModel + +[[autodoc]] models.transformers.transformer_temporal.TransformerTemporalModel + +## TransformerTemporalModelOutput + +[[autodoc]] models.transformers.transformer_temporal.TransformerTemporalModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet-motion.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet-motion.md new file mode 100644 index 0000000000000000000000000000000000000000..5977be7d9a4e8a612423f5f38b0199dfa48e5f5a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet-motion.md @@ -0,0 +1,25 @@ + + +# UNetMotionModel + +The [UNet](https://huggingface.co/papers/1505.04597) model was originally introduced by Ronneberger et al for biomedical image segmentation, but it is also commonly used in 🤗 Diffusers because it outputs images that are the same size as the input. It is one of the most important components of a diffusion system because it facilitates the actual diffusion process. There are several variants of the UNet model in 🤗 Diffusers, depending on it's number of dimensions and whether it is a conditional model or not. This is a 2D UNet model. + +The abstract from the paper is: + +*There is large consent that successful training of deep networks requires many thousand annotated training samples. In this paper, we present a network and training strategy that relies on the strong use of data augmentation to use the available annotated samples more efficiently. The architecture consists of a contracting path to capture context and a symmetric expanding path that enables precise localization. We show that such a network can be trained end-to-end from very few images and outperforms the prior best method (a sliding-window convolutional network) on the ISBI challenge for segmentation of neuronal structures in electron microscopic stacks. Using the same network trained on transmitted light microscopy images (phase contrast and DIC) we won the ISBI cell tracking challenge 2015 in these categories by a large margin. Moreover, the network is fast. Segmentation of a 512x512 image takes less than a second on a recent GPU. The full implementation (based on Caffe) and the trained networks are available at http://lmb.informatik.uni-freiburg.de/people/ronneber/u-net.* + +## UNetMotionModel +[[autodoc]] UNetMotionModel + +## UNet3DConditionOutput +[[autodoc]] models.unets.unet_3d_condition.UNet3DConditionOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet.md new file mode 100644 index 0000000000000000000000000000000000000000..d758a4db069870ad544cbce1d458878bbca0edd6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet.md @@ -0,0 +1,25 @@ + + +# UNet1DModel + +The [UNet](https://huggingface.co/papers/1505.04597) model was originally introduced by Ronneberger et al. for biomedical image segmentation, but it is also commonly used in 🤗 Diffusers because it outputs images that are the same size as the input. It is one of the most important components of a diffusion system because it facilitates the actual diffusion process. There are several variants of the UNet model in 🤗 Diffusers, depending on it's number of dimensions and whether it is a conditional model or not. This is a 1D UNet model. + +The abstract from the paper is: + +*There is large consent that successful training of deep networks requires many thousand annotated training samples. In this paper, we present a network and training strategy that relies on the strong use of data augmentation to use the available annotated samples more efficiently. The architecture consists of a contracting path to capture context and a symmetric expanding path that enables precise localization. We show that such a network can be trained end-to-end from very few images and outperforms the prior best method (a sliding-window convolutional network) on the ISBI challenge for segmentation of neuronal structures in electron microscopic stacks. Using the same network trained on transmitted light microscopy images (phase contrast and DIC) we won the ISBI cell tracking challenge 2015 in these categories by a large margin. Moreover, the network is fast. Segmentation of a 512x512 image takes less than a second on a recent GPU. The full implementation (based on Caffe) and the trained networks are available at http://lmb.informatik.uni-freiburg.de/people/ronneber/u-net.* + +## UNet1DModel +[[autodoc]] UNet1DModel + +## UNet1DOutput +[[autodoc]] models.unets.unet_1d.UNet1DOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet2d-cond.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet2d-cond.md new file mode 100644 index 0000000000000000000000000000000000000000..99a7c41ab286cbb2a76319dda79bab541e028516 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet2d-cond.md @@ -0,0 +1,25 @@ + + +# UNet2DConditionModel + +The [UNet](https://huggingface.co/papers/1505.04597) model was originally introduced by Ronneberger et al. for biomedical image segmentation, but it is also commonly used in 🤗 Diffusers because it outputs images that are the same size as the input. It is one of the most important components of a diffusion system because it facilitates the actual diffusion process. There are several variants of the UNet model in 🤗 Diffusers, depending on it's number of dimensions and whether it is a conditional model or not. This is a 2D UNet conditional model. + +The abstract from the paper is: + +*There is large consent that successful training of deep networks requires many thousand annotated training samples. In this paper, we present a network and training strategy that relies on the strong use of data augmentation to use the available annotated samples more efficiently. The architecture consists of a contracting path to capture context and a symmetric expanding path that enables precise localization. We show that such a network can be trained end-to-end from very few images and outperforms the prior best method (a sliding-window convolutional network) on the ISBI challenge for segmentation of neuronal structures in electron microscopic stacks. Using the same network trained on transmitted light microscopy images (phase contrast and DIC) we won the ISBI cell tracking challenge 2015 in these categories by a large margin. Moreover, the network is fast. Segmentation of a 512x512 image takes less than a second on a recent GPU. The full implementation (based on Caffe) and the trained networks are available at http://lmb.informatik.uni-freiburg.de/people/ronneber/u-net.* + +## UNet2DConditionModel +[[autodoc]] UNet2DConditionModel + +## UNet2DConditionOutput +[[autodoc]] models.unets.unet_2d_condition.UNet2DConditionOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet2d.md new file mode 100644 index 0000000000000000000000000000000000000000..063f2f276632e6410126f9cc5db9ed42790f1add --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet2d.md @@ -0,0 +1,25 @@ + + +# UNet2DModel + +The [UNet](https://huggingface.co/papers/1505.04597) model was originally introduced by Ronneberger et al. for biomedical image segmentation, but it is also commonly used in 🤗 Diffusers because it outputs images that are the same size as the input. It is one of the most important components of a diffusion system because it facilitates the actual diffusion process. There are several variants of the UNet model in 🤗 Diffusers, depending on it's number of dimensions and whether it is a conditional model or not. This is a 2D UNet model. + +The abstract from the paper is: + +*There is large consent that successful training of deep networks requires many thousand annotated training samples. In this paper, we present a network and training strategy that relies on the strong use of data augmentation to use the available annotated samples more efficiently. The architecture consists of a contracting path to capture context and a symmetric expanding path that enables precise localization. We show that such a network can be trained end-to-end from very few images and outperforms the prior best method (a sliding-window convolutional network) on the ISBI challenge for segmentation of neuronal structures in electron microscopic stacks. Using the same network trained on transmitted light microscopy images (phase contrast and DIC) we won the ISBI cell tracking challenge 2015 in these categories by a large margin. Moreover, the network is fast. Segmentation of a 512x512 image takes less than a second on a recent GPU. The full implementation (based on Caffe) and the trained networks are available at http://lmb.informatik.uni-freiburg.de/people/ronneber/u-net.* + +## UNet2DModel +[[autodoc]] UNet2DModel + +## UNet2DOutput +[[autodoc]] models.unets.unet_2d.UNet2DOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet3d-cond.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet3d-cond.md new file mode 100644 index 0000000000000000000000000000000000000000..d641d0b6a22ebc2dd8b959002d083cd1959e203d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/unet3d-cond.md @@ -0,0 +1,25 @@ + + +# UNet3DConditionModel + +The [UNet](https://huggingface.co/papers/1505.04597) model was originally introduced by Ronneberger et al. for biomedical image segmentation, but it is also commonly used in 🤗 Diffusers because it outputs images that are the same size as the input. It is one of the most important components of a diffusion system because it facilitates the actual diffusion process. There are several variants of the UNet model in 🤗 Diffusers, depending on it's number of dimensions and whether it is a conditional model or not. This is a 3D UNet conditional model. + +The abstract from the paper is: + +*There is large consent that successful training of deep networks requires many thousand annotated training samples. In this paper, we present a network and training strategy that relies on the strong use of data augmentation to use the available annotated samples more efficiently. The architecture consists of a contracting path to capture context and a symmetric expanding path that enables precise localization. We show that such a network can be trained end-to-end from very few images and outperforms the prior best method (a sliding-window convolutional network) on the ISBI challenge for segmentation of neuronal structures in electron microscopic stacks. Using the same network trained on transmitted light microscopy images (phase contrast and DIC) we won the ISBI cell tracking challenge 2015 in these categories by a large margin. Moreover, the network is fast. Segmentation of a 512x512 image takes less than a second on a recent GPU. The full implementation (based on Caffe) and the trained networks are available at http://lmb.informatik.uni-freiburg.de/people/ronneber/u-net.* + +## UNet3DConditionModel +[[autodoc]] UNet3DConditionModel + +## UNet3DConditionOutput +[[autodoc]] models.unets.unet_3d_condition.UNet3DConditionOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/uvit2d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/uvit2d.md new file mode 100644 index 0000000000000000000000000000000000000000..94cf213f41023cfc6ecf38ff4757413b85d74678 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/uvit2d.md @@ -0,0 +1,39 @@ + + +# UVit2DModel + +The [U-ViT](https://hf.co/papers/2301.11093) model is a vision transformer (ViT) based UNet. This model incorporates elements from ViT (considers all inputs such as time, conditions and noisy image patches as tokens) and a UNet (long skip connections between the shallow and deep layers). The skip connection is important for predicting pixel-level features. An additional 3x3 convolutional block is applied prior to the final output to improve image quality. + +The abstract from the paper is: + +*Currently, applying diffusion models in pixel space of high resolution images is difficult. Instead, existing approaches focus on diffusion in lower dimensional spaces (latent diffusion), or have multiple super-resolution levels of generation referred to as cascades. The downside is that these approaches add additional complexity to the diffusion framework. This paper aims to improve denoising diffusion for high resolution images while keeping the model as simple as possible. The paper is centered around the research question: How can one train a standard denoising diffusion models on high resolution images, and still obtain performance comparable to these alternate approaches? The four main findings are: 1) the noise schedule should be adjusted for high resolution images, 2) It is sufficient to scale only a particular part of the architecture, 3) dropout should be added at specific locations in the architecture, and 4) downsampling is an effective strategy to avoid high resolution feature maps. Combining these simple yet effective techniques, we achieve state-of-the-art on image generation among diffusion models without sampling modifiers on ImageNet.* + +## UVit2DModel + +[[autodoc]] UVit2DModel + +## UVit2DConvEmbed + +[[autodoc]] models.unets.uvit_2d.UVit2DConvEmbed + +## UVitBlock + +[[autodoc]] models.unets.uvit_2d.UVitBlock + +## ConvNextBlock + +[[autodoc]] models.unets.uvit_2d.ConvNextBlock + +## ConvMlmLayer + +[[autodoc]] models.unets.uvit_2d.ConvMlmLayer diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/vq.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/vq.md new file mode 100644 index 0000000000000000000000000000000000000000..3f2f46f50a5e98227a7e22cdf19a9f311f04e363 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/vq.md @@ -0,0 +1,27 @@ + + +# VQModel + +The VQ-VAE model was introduced in [Neural Discrete Representation Learning](https://huggingface.co/papers/1711.00937) by Aaron van den Oord, Oriol Vinyals and Koray Kavukcuoglu. The model is used in 🤗 Diffusers to decode latent representations into images. Unlike [`AutoencoderKL`], the [`VQModel`] works in a quantized latent space. + +The abstract from the paper is: + +*Learning useful representations without supervision remains a key challenge in machine learning. In this paper, we propose a simple yet powerful generative model that learns such discrete representations. Our model, the Vector Quantised-Variational AutoEncoder (VQ-VAE), differs from VAEs in two key ways: the encoder network outputs discrete, rather than continuous, codes; and the prior is learnt rather than static. In order to learn a discrete latent representation, we incorporate ideas from vector quantisation (VQ). Using the VQ method allows the model to circumvent issues of "posterior collapse" -- where the latents are ignored when they are paired with a powerful autoregressive decoder -- typically observed in the VAE framework. Pairing these representations with an autoregressive prior, the model can generate high quality images, videos, and speech as well as doing high quality speaker conversion and unsupervised learning of phonemes, providing further evidence of the utility of the learnt representations.* + +## VQModel + +[[autodoc]] VQModel + +## VQEncoderOutput + +[[autodoc]] models.autoencoders.vq_model.VQEncoderOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/wan_animate_transformer_3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/wan_animate_transformer_3d.md new file mode 100644 index 0000000000000000000000000000000000000000..cc7b3f0c408cc6762fac820ae15f72485748f21e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/wan_animate_transformer_3d.md @@ -0,0 +1,30 @@ + + +# WanAnimateTransformer3DModel + +A Diffusion Transformer model for 3D video-like data was introduced in [Wan Animate](https://github.com/Wan-Video/Wan2.2) by the Alibaba Wan Team. + +The model can be loaded with the following code snippet. + +```python +from diffusers import WanAnimateTransformer3DModel + +transformer = WanAnimateTransformer3DModel.from_pretrained("Wan-AI/Wan2.2-Animate-14B-Diffusers", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## WanAnimateTransformer3DModel + +[[autodoc]] WanAnimateTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/wan_transformer_3d.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/wan_transformer_3d.md new file mode 100644 index 0000000000000000000000000000000000000000..c218166584c6c4f0a3f2a9823a0f43020b131917 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/models/wan_transformer_3d.md @@ -0,0 +1,30 @@ + + +# WanTransformer3DModel + +A Diffusion Transformer model for 3D video-like data was introduced in [Wan 2.1](https://github.com/Wan-Video/Wan2.1) by the Alibaba Wan Team. + +The model can be loaded with the following code snippet. + +```python +from diffusers import WanTransformer3DModel + +transformer = WanTransformer3DModel.from_pretrained("Wan-AI/Wan2.1-T2V-1.3B-Diffusers", subfolder="transformer", torch_dtype=torch.bfloat16) +``` + +## WanTransformer3DModel + +[[autodoc]] WanTransformer3DModel + +## Transformer2DModelOutput + +[[autodoc]] models.modeling_outputs.Transformer2DModelOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/guiders.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/guiders.md new file mode 100644 index 0000000000000000000000000000000000000000..a24eb72207492a8f3636cabec7c1a6b6c1a9bde9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/guiders.md @@ -0,0 +1,39 @@ +# Guiders + +Guiders are components in Modular Diffusers that control how the diffusion process is guided during generation. They implement various guidance techniques to improve generation quality and control. + +## BaseGuidance + +[[autodoc]] diffusers.guiders.guider_utils.BaseGuidance + +## ClassifierFreeGuidance + +[[autodoc]] diffusers.guiders.classifier_free_guidance.ClassifierFreeGuidance + +## ClassifierFreeZeroStarGuidance + +[[autodoc]] diffusers.guiders.classifier_free_zero_star_guidance.ClassifierFreeZeroStarGuidance + +## SkipLayerGuidance + +[[autodoc]] diffusers.guiders.skip_layer_guidance.SkipLayerGuidance + +## SmoothedEnergyGuidance + +[[autodoc]] diffusers.guiders.smoothed_energy_guidance.SmoothedEnergyGuidance + +## PerturbedAttentionGuidance + +[[autodoc]] diffusers.guiders.perturbed_attention_guidance.PerturbedAttentionGuidance + +## AdaptiveProjectedGuidance + +[[autodoc]] diffusers.guiders.adaptive_projected_guidance.AdaptiveProjectedGuidance + +## AutoGuidance + +[[autodoc]] diffusers.guiders.auto_guidance.AutoGuidance + +## TangentialClassifierFreeGuidance + +[[autodoc]] diffusers.guiders.tangential_classifier_free_guidance.TangentialClassifierFreeGuidance diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline.md new file mode 100644 index 0000000000000000000000000000000000000000..f60261ea6672c58ae4db2c8379311859ac36e9fe --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline.md @@ -0,0 +1,5 @@ +# Pipeline + +## ModularPipeline + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.ModularPipeline diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_blocks.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_blocks.md new file mode 100644 index 0000000000000000000000000000000000000000..8ad581e679acc7bc0707c3c125872ad27a777b71 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_blocks.md @@ -0,0 +1,17 @@ +# Pipeline blocks + +## ModularPipelineBlocks + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.ModularPipelineBlocks + +## SequentialPipelineBlocks + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.SequentialPipelineBlocks + +## LoopSequentialPipelineBlocks + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.LoopSequentialPipelineBlocks + +## AutoPipelineBlocks + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.AutoPipelineBlocks \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_components.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_components.md new file mode 100644 index 0000000000000000000000000000000000000000..2d8e10aef6d83db3d17503e44bd88bf2c15c4de3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_components.md @@ -0,0 +1,17 @@ +# Components and configs + +## ComponentSpec + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.ComponentSpec + +## ConfigSpec + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.ConfigSpec + +## ComponentsManager + +[[autodoc]] diffusers.modular_pipelines.components_manager.ComponentsManager + +## InsertableDict + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline_utils.InsertableDict \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_states.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_states.md new file mode 100644 index 0000000000000000000000000000000000000000..341d18ecb41cda10f1a551dd96a2950ef7938fae --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/modular_diffusers/pipeline_states.md @@ -0,0 +1,9 @@ +# Pipeline states + +## PipelineState + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.PipelineState + +## BlockState + +[[autodoc]] diffusers.modular_pipelines.modular_pipeline.BlockState \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/normalization.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/normalization.md new file mode 100644 index 0000000000000000000000000000000000000000..fa703b19871b85aef2b47008add72780db4e1fa8 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/normalization.md @@ -0,0 +1,71 @@ + + +# Normalization layers + +Customized normalization layers for supporting various models in 🤗 Diffusers. + +## AdaLayerNorm + +[[autodoc]] models.normalization.AdaLayerNorm + +## AdaLayerNormZero + +[[autodoc]] models.normalization.AdaLayerNormZero + +## AdaLayerNormSingle + +[[autodoc]] models.normalization.AdaLayerNormSingle + +## AdaGroupNorm + +[[autodoc]] models.normalization.AdaGroupNorm + +## AdaLayerNormContinuous + +[[autodoc]] models.normalization.AdaLayerNormContinuous + +## RMSNorm + +[[autodoc]] models.normalization.RMSNorm + +## GlobalResponseNorm + +[[autodoc]] models.normalization.GlobalResponseNorm + + +## LuminaLayerNormContinuous +[[autodoc]] models.normalization.LuminaLayerNormContinuous + +## SD35AdaLayerNormZeroX +[[autodoc]] models.normalization.SD35AdaLayerNormZeroX + +## AdaLayerNormZeroSingle +[[autodoc]] models.normalization.AdaLayerNormZeroSingle + +## LuminaRMSNormZero +[[autodoc]] models.normalization.LuminaRMSNormZero + +## LpNorm +[[autodoc]] models.normalization.LpNorm + +## CogView3PlusAdaLayerNormZeroTextImage +[[autodoc]] models.normalization.CogView3PlusAdaLayerNormZeroTextImage + +## CogVideoXLayerNormZero +[[autodoc]] models.normalization.CogVideoXLayerNormZero + +## MochiRMSNormZero +[[autodoc]] models.transformers.transformer_mochi.MochiRMSNormZero + +## MochiRMSNorm +[[autodoc]] models.normalization.MochiRMSNorm \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/outputs.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/outputs.md new file mode 100644 index 0000000000000000000000000000000000000000..0fba1ab2fae8156bad80181920bceede53c2139c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/outputs.md @@ -0,0 +1,60 @@ + + +# Outputs + +All model outputs are subclasses of [`~utils.BaseOutput`], data structures containing all the information returned by the model. The outputs can also be used as tuples or dictionaries. + +For example: + +```python +from diffusers import DDIMPipeline + +pipeline = DDIMPipeline.from_pretrained("google/ddpm-cifar10-32") +outputs = pipeline() +``` + +The `outputs` object is a [`~pipelines.ImagePipelineOutput`] which means it has an image attribute. + +You can access each attribute as you normally would or with a keyword lookup, and if that attribute is not returned by the model, you will get `None`: + +```python +outputs.images +outputs["images"] +``` + +When considering the `outputs` object as a tuple, it only considers the attributes that don't have `None` values. +For instance, retrieving an image by indexing into it returns the tuple `(outputs.images)`: + +```python +outputs[:1] +``` + +> [!TIP] +> To check a specific pipeline or model output, refer to its corresponding API documentation. + +## BaseOutput + +[[autodoc]] utils.BaseOutput + - to_tuple + +## ImagePipelineOutput + +[[autodoc]] pipelines.ImagePipelineOutput + +## AudioPipelineOutput + +[[autodoc]] pipelines.AudioPipelineOutput + +## ImageTextPipelineOutput + +[[autodoc]] ImageTextPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/parallel.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/parallel.md new file mode 100644 index 0000000000000000000000000000000000000000..f2a6bee3910e21e3b031837d783f231481d95b25 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/parallel.md @@ -0,0 +1,24 @@ + + +# Parallelism + +Parallelism strategies help speed up diffusion transformers by distributing computations across multiple devices, allowing for faster inference/training times. Refer to the [Distributed inferece](../training/distributed_inference) guide to learn more. + +## ParallelConfig + +[[autodoc]] ParallelConfig + +## ContextParallelConfig + +[[autodoc]] ContextParallelConfig + +[[autodoc]] hooks.apply_context_parallel diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/allegro.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/allegro.md new file mode 100644 index 0000000000000000000000000000000000000000..a981fb1f94f73d06474059e6edd9b1410669c871 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/allegro.md @@ -0,0 +1,76 @@ + + +# Allegro + +[Allegro: Open the Black Box of Commercial-Level Video Generation Model](https://huggingface.co/papers/2410.15458) from RhymesAI, by Yuan Zhou, Qiuyue Wang, Yuxuan Cai, Huan Yang. + +The abstract from the paper is: + +*Significant advancements have been made in the field of video generation, with the open-source community contributing a wealth of research papers and tools for training high-quality models. However, despite these efforts, the available information and resources remain insufficient for achieving commercial-level performance. In this report, we open the black box and introduce Allegro, an advanced video generation model that excels in both quality and temporal consistency. We also highlight the current limitations in the field and present a comprehensive methodology for training high-performance, commercial-level video generation models, addressing key aspects such as data, model architecture, training pipeline, and evaluation. Our user study shows that Allegro surpasses existing open-source models and most commercial models, ranking just behind Hailuo and Kling. Code: https://github.com/rhymes-ai/Allegro , Model: https://huggingface.co/rhymes-ai/Allegro , Gallery: https://rhymes.ai/allegro_gallery .* + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## Quantization + +Quantization helps reduce the memory requirements of very large models by storing model weights in a lower precision data type. However, quantization may have varying impact on video quality depending on the video model. + +Refer to the [Quantization](../../quantization/overview) overview to learn more about supported quantization backends and selecting a quantization backend that supports your use case. The example below demonstrates how to load a quantized [`AllegroPipeline`] for inference with bitsandbytes. + +```py +import torch +from diffusers import BitsAndBytesConfig as DiffusersBitsAndBytesConfig, AllegroTransformer3DModel, AllegroPipeline +from diffusers.utils import export_to_video +from transformers import BitsAndBytesConfig as BitsAndBytesConfig, T5EncoderModel + +quant_config = BitsAndBytesConfig(load_in_8bit=True) +text_encoder_8bit = T5EncoderModel.from_pretrained( + "rhymes-ai/Allegro", + subfolder="text_encoder", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +quant_config = DiffusersBitsAndBytesConfig(load_in_8bit=True) +transformer_8bit = AllegroTransformer3DModel.from_pretrained( + "rhymes-ai/Allegro", + subfolder="transformer", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +pipeline = AllegroPipeline.from_pretrained( + "rhymes-ai/Allegro", + text_encoder=text_encoder_8bit, + transformer=transformer_8bit, + torch_dtype=torch.float16, + device_map="balanced", +) + +prompt = ( + "A seaside harbor with bright sunlight and sparkling seawater, with many boats in the water. From an aerial view, " + "the boats vary in size and color, some moving and some stationary. Fishing boats in the water suggest that this " + "location might be a popular spot for docking fishing boats." +) +video = pipeline(prompt, guidance_scale=7.5, max_sequence_length=512).frames[0] +export_to_video(video, "harbor.mp4", fps=15) +``` + +## AllegroPipeline + +[[autodoc]] AllegroPipeline + - all + - __call__ + +## AllegroPipelineOutput + +[[autodoc]] pipelines.allegro.pipeline_output.AllegroPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/amused.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/amused.md new file mode 100644 index 0000000000000000000000000000000000000000..ad292abca2cc0ad1deb8ea666c838a49037a4850 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/amused.md @@ -0,0 +1,51 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# aMUSEd + +aMUSEd was introduced in [aMUSEd: An Open MUSE Reproduction](https://huggingface.co/papers/2401.01808) by Suraj Patil, William Berman, Robin Rombach, and Patrick von Platen. + +Amused is a lightweight text to image model based off of the [MUSE](https://huggingface.co/papers/2301.00704) architecture. Amused is particularly useful in applications that require a lightweight and fast model such as generating many images quickly at once. + +Amused is a vqvae token based transformer that can generate an image in fewer forward passes than many diffusion models. In contrast with muse, it uses the smaller text encoder CLIP-L/14 instead of t5-xxl. Due to its small parameter count and few forward pass generation process, amused can generate many images quickly. This benefit is seen particularly at larger batch sizes. + +The abstract from the paper is: + +*We present aMUSEd, an open-source, lightweight masked image model (MIM) for text-to-image generation based on MUSE. With 10 percent of MUSE's parameters, aMUSEd is focused on fast image generation. We believe MIM is under-explored compared to latent diffusion, the prevailing approach for text-to-image generation. Compared to latent diffusion, MIM requires fewer inference steps and is more interpretable. Additionally, MIM can be fine-tuned to learn additional styles with only a single image. We hope to encourage further exploration of MIM by demonstrating its effectiveness on large-scale text-to-image generation and releasing reproducible training code. We also release checkpoints for two models which directly produce images at 256x256 and 512x512 resolutions.* + +| Model | Params | +|-------|--------| +| [amused-256](https://huggingface.co/amused/amused-256) | 603M | +| [amused-512](https://huggingface.co/amused/amused-512) | 608M | + +## AmusedPipeline + +[[autodoc]] AmusedPipeline + - __call__ + - all + - enable_xformers_memory_efficient_attention + - disable_xformers_memory_efficient_attention + +[[autodoc]] AmusedImg2ImgPipeline + - __call__ + - all + - enable_xformers_memory_efficient_attention + - disable_xformers_memory_efficient_attention + +[[autodoc]] AmusedInpaintPipeline + - __call__ + - all + - enable_xformers_memory_efficient_attention + - disable_xformers_memory_efficient_attention \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/animatediff.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/animatediff.md new file mode 100644 index 0000000000000000000000000000000000000000..f0188f3c36fb98063c6c2be67b2691b3c11d5a8c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/animatediff.md @@ -0,0 +1,1047 @@ + + +# Text-to-Video Generation with AnimateDiff + +
+ LoRA +
+ +## Overview + +[AnimateDiff: Animate Your Personalized Text-to-Image Diffusion Models without Specific Tuning](https://huggingface.co/papers/2307.04725) by Yuwei Guo, Ceyuan Yang, Anyi Rao, Yaohui Wang, Yu Qiao, Dahua Lin, Bo Dai. + +The abstract of the paper is the following: + +*With the advance of text-to-image models (e.g., Stable Diffusion) and corresponding personalization techniques such as DreamBooth and LoRA, everyone can manifest their imagination into high-quality images at an affordable cost. Subsequently, there is a great demand for image animation techniques to further combine generated static images with motion dynamics. In this report, we propose a practical framework to animate most of the existing personalized text-to-image models once and for all, saving efforts in model-specific tuning. At the core of the proposed framework is to insert a newly initialized motion modeling module into the frozen text-to-image model and train it on video clips to distill reasonable motion priors. Once trained, by simply injecting this motion modeling module, all personalized versions derived from the same base T2I readily become text-driven models that produce diverse and personalized animated images. We conduct our evaluation on several public representative personalized text-to-image models across anime pictures and realistic photographs, and demonstrate that our proposed framework helps these models generate temporally smooth animation clips while preserving the domain and diversity of their outputs. Code and pre-trained weights will be publicly available at [this https URL](https://animatediff.github.io/).* + +## Available Pipelines + +| Pipeline | Tasks | Demo +|---|---|:---:| +| [AnimateDiffPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/animatediff/pipeline_animatediff.py) | *Text-to-Video Generation with AnimateDiff* | +| [AnimateDiffControlNetPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/animatediff/pipeline_animatediff_controlnet.py) | *Controlled Video-to-Video Generation with AnimateDiff using ControlNet* | +| [AnimateDiffSparseControlNetPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/animatediff/pipeline_animatediff_sparsectrl.py) | *Controlled Video-to-Video Generation with AnimateDiff using SparseCtrl* | +| [AnimateDiffSDXLPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/animatediff/pipeline_animatediff_sdxl.py) | *Video-to-Video Generation with AnimateDiff* | +| [AnimateDiffVideoToVideoPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/animatediff/pipeline_animatediff_video2video.py) | *Video-to-Video Generation with AnimateDiff* | +| [AnimateDiffVideoToVideoControlNetPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/animatediff/pipeline_animatediff_video2video_controlnet.py) | *Video-to-Video Generation with AnimateDiff using ControlNet* | + +## Available checkpoints + +Motion Adapter checkpoints can be found under [guoyww](https://huggingface.co/guoyww/). These checkpoints are meant to work with any model based on Stable Diffusion 1.4/1.5. + +## Usage example + +### AnimateDiffPipeline + +AnimateDiff works with a MotionAdapter checkpoint and a Stable Diffusion model checkpoint. The MotionAdapter is a collection of Motion Modules that are responsible for adding coherent motion across image frames. These modules are applied after the Resnet and Attention blocks in Stable Diffusion UNet. + +The following example demonstrates how to use a *MotionAdapter* checkpoint with Diffusers for inference based on StableDiffusion-1.4/1.5. + +```python +import torch +from diffusers import AnimateDiffPipeline, DDIMScheduler, MotionAdapter +from diffusers.utils import export_to_gif + +# Load the motion adapter +adapter = MotionAdapter.from_pretrained("guoyww/animatediff-motion-adapter-v1-5-2", torch_dtype=torch.float16) +# load SD 1.5 based finetuned model +model_id = "SG161222/Realistic_Vision_V5.1_noVAE" +pipe = AnimateDiffPipeline.from_pretrained(model_id, motion_adapter=adapter, torch_dtype=torch.float16) +scheduler = DDIMScheduler.from_pretrained( + model_id, + subfolder="scheduler", + clip_sample=False, + timestep_spacing="linspace", + beta_schedule="linear", + steps_offset=1, +) +pipe.scheduler = scheduler + +# enable memory savings +pipe.enable_vae_slicing() +pipe.enable_model_cpu_offload() + +output = pipe( + prompt=( + "masterpiece, bestquality, highlydetailed, ultradetailed, sunset, " + "orange sky, warm lighting, fishing boats, ocean waves seagulls, " + "rippling water, wharf, silhouette, serene atmosphere, dusk, evening glow, " + "golden hour, coastal landscape, seaside scenery" + ), + negative_prompt="bad quality, worse quality", + num_frames=16, + guidance_scale=7.5, + num_inference_steps=25, + generator=torch.Generator("cpu").manual_seed(42), +) +frames = output.frames[0] +export_to_gif(frames, "animation.gif") +``` + +Here are some sample outputs: + + + + + +
+ masterpiece, bestquality, sunset. +
+ masterpiece, bestquality, sunset +
+ +> [!TIP] +> AnimateDiff tends to work better with finetuned Stable Diffusion models. If you plan on using a scheduler that can clip samples, make sure to disable it by setting `clip_sample=False` in the scheduler as this can also have an adverse effect on generated samples. Additionally, the AnimateDiff checkpoints can be sensitive to the beta schedule of the scheduler. We recommend setting this to `linear`. + +### AnimateDiffControlNetPipeline + +AnimateDiff can also be used with ControlNets ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. With a ControlNet model, you can provide an additional control image to condition and control Stable Diffusion generation. For example, if you provide depth maps, the ControlNet model generates a video that'll preserve the spatial information from the depth maps. It is a more flexible and accurate way to control the video generation process. + +```python +import torch +from diffusers import AnimateDiffControlNetPipeline, AutoencoderKL, ControlNetModel, MotionAdapter, LCMScheduler +from diffusers.utils import export_to_gif, load_video + +# Additionally, you will need a preprocess videos before they can be used with the ControlNet +# HF maintains just the right package for it: `pip install controlnet_aux` +from controlnet_aux.processor import ZoeDetector + +# Download controlnets from https://huggingface.co/lllyasviel/ControlNet-v1-1 to use .from_single_file +# Download Diffusers-format controlnets, such as https://huggingface.co/lllyasviel/sd-controlnet-depth, to use .from_pretrained() +controlnet = ControlNetModel.from_single_file("control_v11f1p_sd15_depth.pth", torch_dtype=torch.float16) + +# We use AnimateLCM for this example but one can use the original motion adapters as well (for example, https://huggingface.co/guoyww/animatediff-motion-adapter-v1-5-3) +motion_adapter = MotionAdapter.from_pretrained("wangfuyun/AnimateLCM") + +vae = AutoencoderKL.from_pretrained("stabilityai/sd-vae-ft-mse", torch_dtype=torch.float16) +pipe: AnimateDiffControlNetPipeline = AnimateDiffControlNetPipeline.from_pretrained( + "SG161222/Realistic_Vision_V5.1_noVAE", + motion_adapter=motion_adapter, + controlnet=controlnet, + vae=vae, +).to(device="cuda", dtype=torch.float16) +pipe.scheduler = LCMScheduler.from_config(pipe.scheduler.config, beta_schedule="linear") +pipe.load_lora_weights("wangfuyun/AnimateLCM", weight_name="AnimateLCM_sd15_t2v_lora.safetensors", adapter_name="lcm-lora") +pipe.set_adapters(["lcm-lora"], [0.8]) + +depth_detector = ZoeDetector.from_pretrained("lllyasviel/Annotators").to("cuda") +video = load_video("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/animatediff-vid2vid-input-1.gif") +conditioning_frames = [] + +with pipe.progress_bar(total=len(video)) as progress_bar: + for frame in video: + conditioning_frames.append(depth_detector(frame)) + progress_bar.update() + +prompt = "a panda, playing a guitar, sitting in a pink boat, in the ocean, mountains in background, realistic, high quality" +negative_prompt = "bad quality, worst quality" + +video = pipe( + prompt=prompt, + negative_prompt=negative_prompt, + num_frames=len(video), + num_inference_steps=10, + guidance_scale=2.0, + conditioning_frames=conditioning_frames, + generator=torch.Generator().manual_seed(42), +).frames[0] + +export_to_gif(video, "animatediff_controlnet.gif", fps=8) +``` + +Here are some sample outputs: + + + + + + + + + + +
Source VideoOutput Video
+ raccoon playing a guitar +
+ racoon playing a guitar + 		+ a panda, playing a guitar, sitting in a pink boat, in the ocean, mountains in background, realistic, high quality +
+ a panda, playing a guitar, sitting in a pink boat, in the ocean, mountains in background, realistic, high quality +
+ +### AnimateDiffSparseControlNetPipeline + +[SparseCtrl: Adding Sparse Controls to Text-to-Video Diffusion Models](https://huggingface.co/papers/2311.16933) for achieving controlled generation in text-to-video diffusion models by Yuwei Guo, Ceyuan Yang, Anyi Rao, Maneesh Agrawala, Dahua Lin, and Bo Dai. + +The abstract from the paper is: + +*The development of text-to-video (T2V), i.e., generating videos with a given text prompt, has been significantly advanced in recent years. However, relying solely on text prompts often results in ambiguous frame composition due to spatial uncertainty. The research community thus leverages the dense structure signals, e.g., per-frame depth/edge sequences, to enhance controllability, whose collection accordingly increases the burden of inference. In this work, we present SparseCtrl to enable flexible structure control with temporally sparse signals, requiring only one or a few inputs, as shown in Figure 1. It incorporates an additional condition encoder to process these sparse signals while leaving the pre-trained T2V model untouched. The proposed approach is compatible with various modalities, including sketches, depth maps, and RGB images, providing more practical control for video generation and promoting applications such as storyboarding, depth rendering, keyframe animation, and interpolation. Extensive experiments demonstrate the generalization of SparseCtrl on both original and personalized T2V generators. Codes and models will be publicly available at [this https URL](https://guoyww.github.io/projects/SparseCtrl).* + +SparseCtrl introduces the following checkpoints for controlled text-to-video generation: + +- [SparseCtrl Scribble](https://huggingface.co/guoyww/animatediff-sparsectrl-scribble) +- [SparseCtrl RGB](https://huggingface.co/guoyww/animatediff-sparsectrl-rgb) + +#### Using SparseCtrl Scribble + +```python +import torch + +from diffusers import AnimateDiffSparseControlNetPipeline +from diffusers.models import AutoencoderKL, MotionAdapter, SparseControlNetModel +from diffusers.schedulers import DPMSolverMultistepScheduler +from diffusers.utils import export_to_gif, load_image + + +model_id = "SG161222/Realistic_Vision_V5.1_noVAE" +motion_adapter_id = "guoyww/animatediff-motion-adapter-v1-5-3" +controlnet_id = "guoyww/animatediff-sparsectrl-scribble" +lora_adapter_id = "guoyww/animatediff-motion-lora-v1-5-3" +vae_id = "stabilityai/sd-vae-ft-mse" +device = "cuda" + +motion_adapter = MotionAdapter.from_pretrained(motion_adapter_id, torch_dtype=torch.float16).to(device) +controlnet = SparseControlNetModel.from_pretrained(controlnet_id, torch_dtype=torch.float16).to(device) +vae = AutoencoderKL.from_pretrained(vae_id, torch_dtype=torch.float16).to(device) +scheduler = DPMSolverMultistepScheduler.from_pretrained( + model_id, + subfolder="scheduler", + beta_schedule="linear", + algorithm_type="dpmsolver++", + use_karras_sigmas=True, +) +pipe = AnimateDiffSparseControlNetPipeline.from_pretrained( + model_id, + motion_adapter=motion_adapter, + controlnet=controlnet, + vae=vae, + scheduler=scheduler, + torch_dtype=torch.float16, +).to(device) +pipe.load_lora_weights(lora_adapter_id, adapter_name="motion_lora") +pipe.fuse_lora(lora_scale=1.0) + +prompt = "an aerial view of a cyberpunk city, night time, neon lights, masterpiece, high quality" +negative_prompt = "low quality, worst quality, letterboxed" + +image_files = [ + "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/animatediff-scribble-1.png", + "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/animatediff-scribble-2.png", + "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/animatediff-scribble-3.png" +] +condition_frame_indices = [0, 8, 15] +conditioning_frames = [load_image(img_file) for img_file in image_files] + +video = pipe( + prompt=prompt, + negative_prompt=negative_prompt, + num_inference_steps=25, + conditioning_frames=conditioning_frames, + controlnet_conditioning_scale=1.0, + controlnet_frame_indices=condition_frame_indices, + generator=torch.Generator().manual_seed(1337), +).frames[0] +export_to_gif(video, "output.gif") +``` + +Here are some sample outputs: + + + +
+ an aerial view of a cyberpunk city, night time, neon lights, masterpiece, high quality +
+ + + + + + + + + +
+
+ scribble-1 +
+ 		+
+ scribble-2 +
+ 		+
+ scribble-3 +
+
+
+ an aerial view of a cyberpunk city, night time, neon lights, masterpiece, high quality +
+
+ +#### Using SparseCtrl RGB + +```python +import torch + +from diffusers import AnimateDiffSparseControlNetPipeline +from diffusers.models import AutoencoderKL, MotionAdapter, SparseControlNetModel +from diffusers.schedulers import DPMSolverMultistepScheduler +from diffusers.utils import export_to_gif, load_image + + +model_id = "SG161222/Realistic_Vision_V5.1_noVAE" +motion_adapter_id = "guoyww/animatediff-motion-adapter-v1-5-3" +controlnet_id = "guoyww/animatediff-sparsectrl-rgb" +lora_adapter_id = "guoyww/animatediff-motion-lora-v1-5-3" +vae_id = "stabilityai/sd-vae-ft-mse" +device = "cuda" + +motion_adapter = MotionAdapter.from_pretrained(motion_adapter_id, torch_dtype=torch.float16).to(device) +controlnet = SparseControlNetModel.from_pretrained(controlnet_id, torch_dtype=torch.float16).to(device) +vae = AutoencoderKL.from_pretrained(vae_id, torch_dtype=torch.float16).to(device) +scheduler = DPMSolverMultistepScheduler.from_pretrained( + model_id, + subfolder="scheduler", + beta_schedule="linear", + algorithm_type="dpmsolver++", + use_karras_sigmas=True, +) +pipe = AnimateDiffSparseControlNetPipeline.from_pretrained( + model_id, + motion_adapter=motion_adapter, + controlnet=controlnet, + vae=vae, + scheduler=scheduler, + torch_dtype=torch.float16, +).to(device) +pipe.load_lora_weights(lora_adapter_id, adapter_name="motion_lora") + +image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/animatediff-firework.png") + +video = pipe( + prompt="closeup face photo of man in black clothes, night city street, bokeh, fireworks in background", + negative_prompt="low quality, worst quality", + num_inference_steps=25, + conditioning_frames=image, + controlnet_frame_indices=[0], + controlnet_conditioning_scale=1.0, + generator=torch.Generator().manual_seed(42), +).frames[0] +export_to_gif(video, "output.gif") +``` + +Here are some sample outputs: + + + +
+ closeup face photo of man in black clothes, night city street, bokeh, fireworks in background +
+ + + + + +
+
+ closeup face photo of man in black clothes, night city street, bokeh, fireworks in background +
+ 		+
+ closeup face photo of man in black clothes, night city street, bokeh, fireworks in background +
+
+ +### AnimateDiffSDXLPipeline + +AnimateDiff can also be used with SDXL models. This is currently an experimental feature as only a beta release of the motion adapter checkpoint is available. + +```python +import torch +from diffusers.models import MotionAdapter +from diffusers import AnimateDiffSDXLPipeline, DDIMScheduler +from diffusers.utils import export_to_gif + +adapter = MotionAdapter.from_pretrained("guoyww/animatediff-motion-adapter-sdxl-beta", torch_dtype=torch.float16) + +model_id = "stabilityai/stable-diffusion-xl-base-1.0" +scheduler = DDIMScheduler.from_pretrained( + model_id, + subfolder="scheduler", + clip_sample=False, + timestep_spacing="linspace", + beta_schedule="linear", + steps_offset=1, +) +pipe = AnimateDiffSDXLPipeline.from_pretrained( + model_id, + motion_adapter=adapter, + scheduler=scheduler, + torch_dtype=torch.float16, + variant="fp16", +).to("cuda") + +# enable memory savings +pipe.enable_vae_slicing() +pipe.enable_vae_tiling() + +output = pipe( + prompt="a panda surfing in the ocean, realistic, high quality", + negative_prompt="low quality, worst quality", + num_inference_steps=20, + guidance_scale=8, + width=1024, + height=1024, + num_frames=16, +) + +frames = output.frames[0] +export_to_gif(frames, "animation.gif") +``` + +### AnimateDiffVideoToVideoPipeline + +AnimateDiff can also be used to generate visually similar videos or enable style/character/background or other edits starting from an initial video, allowing you to seamlessly explore creative possibilities. + +```python +import imageio +import requests +import torch +from diffusers import AnimateDiffVideoToVideoPipeline, DDIMScheduler, MotionAdapter +from diffusers.utils import export_to_gif +from io import BytesIO +from PIL import Image + +# Load the motion adapter +adapter = MotionAdapter.from_pretrained("guoyww/animatediff-motion-adapter-v1-5-2", torch_dtype=torch.float16) +# load SD 1.5 based finetuned model +model_id = "SG161222/Realistic_Vision_V5.1_noVAE" +pipe = AnimateDiffVideoToVideoPipeline.from_pretrained(model_id, motion_adapter=adapter, torch_dtype=torch.float16) +scheduler = DDIMScheduler.from_pretrained( + model_id, + subfolder="scheduler", + clip_sample=False, + timestep_spacing="linspace", + beta_schedule="linear", + steps_offset=1, +) +pipe.scheduler = scheduler + +# enable memory savings +pipe.enable_vae_slicing() +pipe.enable_model_cpu_offload() + +# helper function to load videos +def load_video(file_path: str): + images = [] + + if file_path.startswith(('http://', 'https://')): + # If the file_path is a URL + response = requests.get(file_path) + response.raise_for_status() + content = BytesIO(response.content) + vid = imageio.get_reader(content) + else: + # Assuming it's a local file path + vid = imageio.get_reader(file_path) + + for frame in vid: + pil_image = Image.fromarray(frame) + images.append(pil_image) + + return images + +video = load_video("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/animatediff-vid2vid-input-1.gif") + +output = pipe( + video = video, + prompt="panda playing a guitar, on a boat, in the ocean, high quality", + negative_prompt="bad quality, worse quality", + guidance_scale=7.5, + num_inference_steps=25, + strength=0.5, + generator=torch.Generator("cpu").manual_seed(42), +) +frames = output.frames[0] +export_to_gif(frames, "animation.gif") +``` + +Here are some sample outputs: + + + + + + + + + + + + + + +
Source VideoOutput Video
+ raccoon playing a guitar +
+ racoon playing a guitar + 		+ panda playing a guitar +
+ panda playing a guitar +
+ closeup of margot robbie, fireworks in the background, high quality +
+ closeup of margot robbie, fireworks in the background, high quality + 		+ closeup of tony stark, robert downey jr, fireworks +
+ closeup of tony stark, robert downey jr, fireworks +
+ + + +### AnimateDiffVideoToVideoControlNetPipeline + +AnimateDiff can be used together with ControlNets to enhance video-to-video generation by allowing for precise control over the output. ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala, and allows you to condition Stable Diffusion with an additional control image to ensure that the spatial information is preserved throughout the video. + +This pipeline allows you to condition your generation both on the original video and on a sequence of control images. + +```python +import torch +from PIL import Image +from tqdm.auto import tqdm + +from controlnet_aux.processor import OpenposeDetector +from diffusers import AnimateDiffVideoToVideoControlNetPipeline +from diffusers.utils import export_to_gif, load_video +from diffusers import AutoencoderKL, ControlNetModel, MotionAdapter, LCMScheduler + +# Load the ControlNet +controlnet = ControlNetModel.from_pretrained("lllyasviel/sd-controlnet-openpose", torch_dtype=torch.float16) +# Load the motion adapter +motion_adapter = MotionAdapter.from_pretrained("wangfuyun/AnimateLCM") +# Load SD 1.5 based finetuned model +vae = AutoencoderKL.from_pretrained("stabilityai/sd-vae-ft-mse", torch_dtype=torch.float16) +pipe = AnimateDiffVideoToVideoControlNetPipeline.from_pretrained( + "SG161222/Realistic_Vision_V5.1_noVAE", + motion_adapter=motion_adapter, + controlnet=controlnet, + vae=vae, +).to(device="cuda", dtype=torch.float16) + +# Enable LCM to speed up inference +pipe.scheduler = LCMScheduler.from_config(pipe.scheduler.config, beta_schedule="linear") +pipe.load_lora_weights("wangfuyun/AnimateLCM", weight_name="AnimateLCM_sd15_t2v_lora.safetensors", adapter_name="lcm-lora") +pipe.set_adapters(["lcm-lora"], [0.8]) + +video = load_video("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/dance.gif") +video = [frame.convert("RGB") for frame in video] + +prompt = "astronaut in space, dancing" +negative_prompt = "bad quality, worst quality, jpeg artifacts, ugly" + +# Create controlnet preprocessor +open_pose = OpenposeDetector.from_pretrained("lllyasviel/Annotators").to("cuda") + +# Preprocess controlnet images +conditioning_frames = [] +for frame in tqdm(video): + conditioning_frames.append(open_pose(frame)) + +strength = 0.8 +with torch.inference_mode(): + video = pipe( + video=video, + prompt=prompt, + negative_prompt=negative_prompt, + num_inference_steps=10, + guidance_scale=2.0, + controlnet_conditioning_scale=0.75, + conditioning_frames=conditioning_frames, + strength=strength, + generator=torch.Generator().manual_seed(42), + ).frames[0] + +video = [frame.resize(conditioning_frames[0].size) for frame in video] +export_to_gif(video, f"animatediff_vid2vid_controlnet.gif", fps=8) +``` + +Here are some sample outputs: + + + + + + + + + + +
Source VideoOutput Video
+ anime girl, dancing +
+ anime girl, dancing + 		+ astronaut in space, dancing +
+ astronaut in space, dancing +
+ +**The lights and composition were transferred from the Source Video.** + +## Using Motion LoRAs + +Motion LoRAs are a collection of LoRAs that work with the `guoyww/animatediff-motion-adapter-v1-5-2` checkpoint. These LoRAs are responsible for adding specific types of motion to the animations. + +```python +import torch +from diffusers import AnimateDiffPipeline, DDIMScheduler, MotionAdapter +from diffusers.utils import export_to_gif + +# Load the motion adapter +adapter = MotionAdapter.from_pretrained("guoyww/animatediff-motion-adapter-v1-5-2", torch_dtype=torch.float16) +# load SD 1.5 based finetuned model +model_id = "SG161222/Realistic_Vision_V5.1_noVAE" +pipe = AnimateDiffPipeline.from_pretrained(model_id, motion_adapter=adapter, torch_dtype=torch.float16) +pipe.load_lora_weights( + "guoyww/animatediff-motion-lora-zoom-out", adapter_name="zoom-out" +) + +scheduler = DDIMScheduler.from_pretrained( + model_id, + subfolder="scheduler", + clip_sample=False, + beta_schedule="linear", + timestep_spacing="linspace", + steps_offset=1, +) +pipe.scheduler = scheduler + +# enable memory savings +pipe.enable_vae_slicing() +pipe.enable_model_cpu_offload() + +output = pipe( + prompt=( + "masterpiece, bestquality, highlydetailed, ultradetailed, sunset, " + "orange sky, warm lighting, fishing boats, ocean waves seagulls, " + "rippling water, wharf, silhouette, serene atmosphere, dusk, evening glow, " + "golden hour, coastal landscape, seaside scenery" + ), + negative_prompt="bad quality, worse quality", + num_frames=16, + guidance_scale=7.5, + num_inference_steps=25, + generator=torch.Generator("cpu").manual_seed(42), +) +frames = output.frames[0] +export_to_gif(frames, "animation.gif") +``` + + + + + +
+ masterpiece, bestquality, sunset. +
+ masterpiece, bestquality, sunset +
+ +## Using Motion LoRAs with PEFT + +You can also leverage the [PEFT](https://github.com/huggingface/peft) backend to combine Motion LoRA's and create more complex animations. + +First install PEFT with + +```shell +pip install peft +``` + +Then you can use the following code to combine Motion LoRAs. + +```python +import torch +from diffusers import AnimateDiffPipeline, DDIMScheduler, MotionAdapter +from diffusers.utils import export_to_gif + +# Load the motion adapter +adapter = MotionAdapter.from_pretrained("guoyww/animatediff-motion-adapter-v1-5-2", torch_dtype=torch.float16) +# load SD 1.5 based finetuned model +model_id = "SG161222/Realistic_Vision_V5.1_noVAE" +pipe = AnimateDiffPipeline.from_pretrained(model_id, motion_adapter=adapter, torch_dtype=torch.float16) + +pipe.load_lora_weights( + "diffusers/animatediff-motion-lora-zoom-out", adapter_name="zoom-out", +) +pipe.load_lora_weights( + "diffusers/animatediff-motion-lora-pan-left", adapter_name="pan-left", +) +pipe.set_adapters(["zoom-out", "pan-left"], adapter_weights=[1.0, 1.0]) + +scheduler = DDIMScheduler.from_pretrained( + model_id, + subfolder="scheduler", + clip_sample=False, + timestep_spacing="linspace", + beta_schedule="linear", + steps_offset=1, +) +pipe.scheduler = scheduler + +# enable memory savings +pipe.enable_vae_slicing() +pipe.enable_model_cpu_offload() + +output = pipe( + prompt=( + "masterpiece, bestquality, highlydetailed, ultradetailed, sunset, " + "orange sky, warm lighting, fishing boats, ocean waves seagulls, " + "rippling water, wharf, silhouette, serene atmosphere, dusk, evening glow, " + "golden hour, coastal landscape, seaside scenery" + ), + negative_prompt="bad quality, worse quality", + num_frames=16, + guidance_scale=7.5, + num_inference_steps=25, + generator=torch.Generator("cpu").manual_seed(42), +) +frames = output.frames[0] +export_to_gif(frames, "animation.gif") +``` + + + + + +
+ masterpiece, bestquality, sunset. +
+ masterpiece, bestquality, sunset +
+ +## Using FreeInit + +[FreeInit: Bridging Initialization Gap in Video Diffusion Models](https://huggingface.co/papers/2312.07537) by Tianxing Wu, Chenyang Si, Yuming Jiang, Ziqi Huang, Ziwei Liu. + +FreeInit is an effective method that improves temporal consistency and overall quality of videos generated using video-diffusion-models without any addition training. It can be applied to AnimateDiff, ModelScope, VideoCrafter and various other video generation models seamlessly at inference time, and works by iteratively refining the latent-initialization noise. More details can be found it the paper. + +The following example demonstrates the usage of FreeInit. + +```python +import torch +from diffusers import MotionAdapter, AnimateDiffPipeline, DDIMScheduler +from diffusers.utils import export_to_gif + +adapter = MotionAdapter.from_pretrained("guoyww/animatediff-motion-adapter-v1-5-2") +model_id = "SG161222/Realistic_Vision_V5.1_noVAE" +pipe = AnimateDiffPipeline.from_pretrained(model_id, motion_adapter=adapter, torch_dtype=torch.float16).to("cuda") +pipe.scheduler = DDIMScheduler.from_pretrained( + model_id, + subfolder="scheduler", + beta_schedule="linear", + clip_sample=False, + timestep_spacing="linspace", + steps_offset=1 +) + +# enable memory savings +pipe.enable_vae_slicing() +pipe.enable_vae_tiling() + +# enable FreeInit +# Refer to the enable_free_init documentation for a full list of configurable parameters +pipe.enable_free_init(method="butterworth", use_fast_sampling=True) + +# run inference +output = pipe( + prompt="a panda playing a guitar, on a boat, in the ocean, high quality", + negative_prompt="bad quality, worse quality", + num_frames=16, + guidance_scale=7.5, + num_inference_steps=20, + generator=torch.Generator("cpu").manual_seed(666), +) + +# disable FreeInit +pipe.disable_free_init() + +frames = output.frames[0] +export_to_gif(frames, "animation.gif") +``` + +> [!WARNING] +> FreeInit is not really free - the improved quality comes at the cost of extra computation. It requires sampling a few extra times depending on the `num_iters` parameter that is set when enabling it. Setting the `use_fast_sampling` parameter to `True` can improve the overall performance (at the cost of lower quality compared to when `use_fast_sampling=False` but still better results than vanilla video generation models). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + + + + + + + + + + +
Without FreeInit enabledWith FreeInit enabled
+ panda playing a guitar +
+ panda playing a guitar + 		+ panda playing a guitar +
+ panda playing a guitar +
+ +## Using AnimateLCM + +[AnimateLCM](https://animatelcm.github.io/) is a motion module checkpoint and an [LCM LoRA](https://huggingface.co/docs/diffusers/using-diffusers/inference_with_lcm_lora) that have been created using a consistency learning strategy that decouples the distillation of the image generation priors and the motion generation priors. + +```python +import torch +from diffusers import AnimateDiffPipeline, LCMScheduler, MotionAdapter +from diffusers.utils import export_to_gif + +adapter = MotionAdapter.from_pretrained("wangfuyun/AnimateLCM") +pipe = AnimateDiffPipeline.from_pretrained("emilianJR/epiCRealism", motion_adapter=adapter) +pipe.scheduler = LCMScheduler.from_config(pipe.scheduler.config, beta_schedule="linear") + +pipe.load_lora_weights("wangfuyun/AnimateLCM", weight_name="sd15_lora_beta.safetensors", adapter_name="lcm-lora") + +pipe.enable_vae_slicing() +pipe.enable_model_cpu_offload() + +output = pipe( + prompt="A space rocket with trails of smoke behind it launching into space from the desert, 4k, high resolution", + negative_prompt="bad quality, worse quality, low resolution", + num_frames=16, + guidance_scale=1.5, + num_inference_steps=6, + generator=torch.Generator("cpu").manual_seed(0), +) +frames = output.frames[0] +export_to_gif(frames, "animatelcm.gif") +``` + + + + + +
+ A space rocket, 4K. +
+ A space rocket, 4K +
+ +AnimateLCM is also compatible with existing [Motion LoRAs](https://huggingface.co/collections/dn6/animatediff-motion-loras-654cb8ad732b9e3cf4d3c17e). + +```python +import torch +from diffusers import AnimateDiffPipeline, LCMScheduler, MotionAdapter +from diffusers.utils import export_to_gif + +adapter = MotionAdapter.from_pretrained("wangfuyun/AnimateLCM") +pipe = AnimateDiffPipeline.from_pretrained("emilianJR/epiCRealism", motion_adapter=adapter) +pipe.scheduler = LCMScheduler.from_config(pipe.scheduler.config, beta_schedule="linear") + +pipe.load_lora_weights("wangfuyun/AnimateLCM", weight_name="sd15_lora_beta.safetensors", adapter_name="lcm-lora") +pipe.load_lora_weights("guoyww/animatediff-motion-lora-tilt-up", adapter_name="tilt-up") + +pipe.set_adapters(["lcm-lora", "tilt-up"], [1.0, 0.8]) +pipe.enable_vae_slicing() +pipe.enable_model_cpu_offload() + +output = pipe( + prompt="A space rocket with trails of smoke behind it launching into space from the desert, 4k, high resolution", + negative_prompt="bad quality, worse quality, low resolution", + num_frames=16, + guidance_scale=1.5, + num_inference_steps=6, + generator=torch.Generator("cpu").manual_seed(0), +) +frames = output.frames[0] +export_to_gif(frames, "animatelcm-motion-lora.gif") +``` + + + + + +
+ A space rocket, 4K. +
+ A space rocket, 4K +
+ +## Using FreeNoise + +[FreeNoise: Tuning-Free Longer Video Diffusion via Noise Rescheduling](https://huggingface.co/papers/2310.15169) by Haonan Qiu, Menghan Xia, Yong Zhang, Yingqing He, Xintao Wang, Ying Shan, Ziwei Liu. + +FreeNoise is a sampling mechanism that can generate longer videos with short-video generation models by employing noise-rescheduling, temporal attention over sliding windows, and weighted averaging of latent frames. It also can be used with multiple prompts to allow for interpolated video generations. More details are available in the paper. + +The currently supported AnimateDiff pipelines that can be used with FreeNoise are: +- [`AnimateDiffPipeline`] +- [`AnimateDiffControlNetPipeline`] +- [`AnimateDiffVideoToVideoPipeline`] +- [`AnimateDiffVideoToVideoControlNetPipeline`] + +In order to use FreeNoise, a single line needs to be added to the inference code after loading your pipelines. + +```diff ++ pipe.enable_free_noise() +``` + +After this, either a single prompt could be used, or multiple prompts can be passed as a dictionary of integer-string pairs. The integer keys of the dictionary correspond to the frame index at which the influence of that prompt would be maximum. Each frame index should map to a single string prompt. The prompts for intermediate frame indices, that are not passed in the dictionary, are created by interpolating between the frame prompts that are passed. By default, simple linear interpolation is used. However, you can customize this behaviour with a callback to the `prompt_interpolation_callback` parameter when enabling FreeNoise. + +Full example: + +```python +import torch +from diffusers import AutoencoderKL, AnimateDiffPipeline, LCMScheduler, MotionAdapter +from diffusers.utils import export_to_video, load_image + +# Load pipeline +dtype = torch.float16 +motion_adapter = MotionAdapter.from_pretrained("wangfuyun/AnimateLCM", torch_dtype=dtype) +vae = AutoencoderKL.from_pretrained("stabilityai/sd-vae-ft-mse", torch_dtype=dtype) + +pipe = AnimateDiffPipeline.from_pretrained("emilianJR/epiCRealism", motion_adapter=motion_adapter, vae=vae, torch_dtype=dtype) +pipe.scheduler = LCMScheduler.from_config(pipe.scheduler.config, beta_schedule="linear") + +pipe.load_lora_weights( + "wangfuyun/AnimateLCM", weight_name="AnimateLCM_sd15_t2v_lora.safetensors", adapter_name="lcm_lora" +) +pipe.set_adapters(["lcm_lora"], [0.8]) + +# Enable FreeNoise for long prompt generation +pipe.enable_free_noise(context_length=16, context_stride=4) +pipe.to("cuda") + +# Can be a single prompt, or a dictionary with frame timesteps +prompt = { + 0: "A caterpillar on a leaf, high quality, photorealistic", + 40: "A caterpillar transforming into a cocoon, on a leaf, near flowers, photorealistic", + 80: "A cocoon on a leaf, flowers in the background, photorealistic", + 120: "A cocoon maturing and a butterfly being born, flowers and leaves visible in the background, photorealistic", + 160: "A beautiful butterfly, vibrant colors, sitting on a leaf, flowers in the background, photorealistic", + 200: "A beautiful butterfly, flying away in a forest, photorealistic", + 240: "A cyberpunk butterfly, neon lights, glowing", +} +negative_prompt = "bad quality, worst quality, jpeg artifacts" + +# Run inference +output = pipe( + prompt=prompt, + negative_prompt=negative_prompt, + num_frames=256, + guidance_scale=2.5, + num_inference_steps=10, + generator=torch.Generator("cpu").manual_seed(0), +) + +# Save video +frames = output.frames[0] +export_to_video(frames, "output.mp4", fps=16) +``` + +### FreeNoise memory savings + +Since FreeNoise processes multiple frames together, there are parts in the modeling where the memory required exceeds that available on normal consumer GPUs. The main memory bottlenecks that we identified are spatial and temporal attention blocks, upsampling and downsampling blocks, resnet blocks and feed-forward layers. Since most of these blocks operate effectively only on the channel/embedding dimension, one can perform chunked inference across the batch dimensions. The batch dimension in AnimateDiff are either spatial (`[B x F, H x W, C]`) or temporal (`B x H x W, F, C`) in nature (note that it may seem counter-intuitive, but the batch dimension here are correct, because spatial blocks process across the `B x F` dimension while the temporal blocks process across the `B x H x W` dimension). We introduce a `SplitInferenceModule` that makes it easier to chunk across any dimension and perform inference. This saves a lot of memory but comes at the cost of requiring more time for inference. + +```diff +# Load pipeline and adapters +# ... ++ pipe.enable_free_noise_split_inference() ++ pipe.unet.enable_forward_chunking(16) +``` + +The call to `pipe.enable_free_noise_split_inference` method accepts two parameters: `spatial_split_size` (defaults to `256`) and `temporal_split_size` (defaults to `16`). These can be configured based on how much VRAM you have available. A lower split size results in lower memory usage but slower inference, whereas a larger split size results in faster inference at the cost of more memory. + +## Using `from_single_file` with the MotionAdapter + +`diffusers>=0.30.0` supports loading the AnimateDiff checkpoints into the `MotionAdapter` in their original format via `from_single_file` + +```python +from diffusers import MotionAdapter + +ckpt_path = "https://huggingface.co/Lightricks/LongAnimateDiff/blob/main/lt_long_mm_32_frames.ckpt" + +adapter = MotionAdapter.from_single_file(ckpt_path, torch_dtype=torch.float16) +pipe = AnimateDiffPipeline.from_pretrained("emilianJR/epiCRealism", motion_adapter=adapter) +``` + +## AnimateDiffPipeline + +[[autodoc]] AnimateDiffPipeline + - all + - __call__ + +## AnimateDiffControlNetPipeline + +[[autodoc]] AnimateDiffControlNetPipeline + - all + - __call__ + +## AnimateDiffSparseControlNetPipeline + +[[autodoc]] AnimateDiffSparseControlNetPipeline + - all + - __call__ + +## AnimateDiffSDXLPipeline + +[[autodoc]] AnimateDiffSDXLPipeline + - all + - __call__ + +## AnimateDiffVideoToVideoPipeline + +[[autodoc]] AnimateDiffVideoToVideoPipeline + - all + - __call__ + +## AnimateDiffVideoToVideoControlNetPipeline + +[[autodoc]] AnimateDiffVideoToVideoControlNetPipeline + - all + - __call__ + +## AnimateDiffPipelineOutput + +[[autodoc]] pipelines.animatediff.AnimateDiffPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/attend_and_excite.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/attend_and_excite.md new file mode 100644 index 0000000000000000000000000000000000000000..e7d1e1d2b87cf7eda966a555f7e09c67d5dee624 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/attend_and_excite.md @@ -0,0 +1,37 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# Attend-and-Excite + +Attend-and-Excite for Stable Diffusion was proposed in [Attend-and-Excite: Attention-Based Semantic Guidance for Text-to-Image Diffusion Models](https://attendandexcite.github.io/Attend-and-Excite/) and provides textual attention control over image generation. + +The abstract from the paper is: + +*Recent text-to-image generative models have demonstrated an unparalleled ability to generate diverse and creative imagery guided by a target text prompt. While revolutionary, current state-of-the-art diffusion models may still fail in generating images that fully convey the semantics in the given text prompt. We analyze the publicly available Stable Diffusion model and assess the existence of catastrophic neglect, where the model fails to generate one or more of the subjects from the input prompt. Moreover, we find that in some cases the model also fails to correctly bind attributes (e.g., colors) to their corresponding subjects. To help mitigate these failure cases, we introduce the concept of Generative Semantic Nursing (GSN), where we seek to intervene in the generative process on the fly during inference time to improve the faithfulness of the generated images. Using an attention-based formulation of GSN, dubbed Attend-and-Excite, we guide the model to refine the cross-attention units to attend to all subject tokens in the text prompt and strengthen - or excite - their activations, encouraging the model to generate all subjects described in the text prompt. We compare our approach to alternative approaches and demonstrate that it conveys the desired concepts more faithfully across a range of text prompts.* + +You can find additional information about Attend-and-Excite on the [project page](https://attendandexcite.github.io/Attend-and-Excite/), the [original codebase](https://github.com/AttendAndExcite/Attend-and-Excite), or try it out in a [demo](https://huggingface.co/spaces/AttendAndExcite/Attend-and-Excite). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## StableDiffusionAttendAndExcitePipeline + +[[autodoc]] StableDiffusionAttendAndExcitePipeline + - all + - __call__ + +## StableDiffusionPipelineOutput + +[[autodoc]] pipelines.stable_diffusion.StableDiffusionPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/audioldm.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/audioldm.md new file mode 100644 index 0000000000000000000000000000000000000000..c8073a14ef0a26ff614040bb3ba152836f6395b5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/audioldm.md @@ -0,0 +1,50 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# AudioLDM + +AudioLDM was proposed in [AudioLDM: Text-to-Audio Generation with Latent Diffusion Models](https://huggingface.co/papers/2301.12503) by Haohe Liu et al. Inspired by [Stable Diffusion](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/overview), AudioLDM +is a text-to-audio _latent diffusion model (LDM)_ that learns continuous audio representations from [CLAP](https://huggingface.co/docs/transformers/main/model_doc/clap) +latents. AudioLDM takes a text prompt as input and predicts the corresponding audio. It can generate text-conditional +sound effects, human speech and music. + +The abstract from the paper is: + +*Text-to-audio (TTA) system has recently gained attention for its ability to synthesize general audio based on text descriptions. However, previous studies in TTA have limited generation quality with high computational costs. In this study, we propose AudioLDM, a TTA system that is built on a latent space to learn the continuous audio representations from contrastive language-audio pretraining (CLAP) latents. The pretrained CLAP models enable us to train LDMs with audio embedding while providing text embedding as a condition during sampling. By learning the latent representations of audio signals and their compositions without modeling the cross-modal relationship, AudioLDM is advantageous in both generation quality and computational efficiency. Trained on AudioCaps with a single GPU, AudioLDM achieves state-of-the-art TTA performance measured by both objective and subjective metrics (e.g., frechet distance). Moreover, AudioLDM is the first TTA system that enables various text-guided audio manipulations (e.g., style transfer) in a zero-shot fashion. Our implementation and demos are available at [this https URL](https://audioldm.github.io/).* + +The original codebase can be found at [haoheliu/AudioLDM](https://github.com/haoheliu/AudioLDM). + +## Tips + +When constructing a prompt, keep in mind: + +* Descriptive prompt inputs work best; you can use adjectives to describe the sound (for example, "high quality" or "clear") and make the prompt context specific (for example, "water stream in a forest" instead of "stream"). +* It's best to use general terms like "cat" or "dog" instead of specific names or abstract objects the model may not be familiar with. + +During inference: + +* The _quality_ of the predicted audio sample can be controlled by the `num_inference_steps` argument; higher steps give higher quality audio at the expense of slower inference. +* The _length_ of the predicted audio sample can be controlled by varying the `audio_length_in_s` argument. + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## AudioLDMPipeline +[[autodoc]] AudioLDMPipeline + - all + - __call__ + +## AudioPipelineOutput +[[autodoc]] pipelines.AudioPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/audioldm2.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/audioldm2.md new file mode 100644 index 0000000000000000000000000000000000000000..45a9002ea070e9eeae4349b97ab247c91ded10d0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/audioldm2.md @@ -0,0 +1,78 @@ + + +# AudioLDM 2 + +AudioLDM 2 was proposed in [AudioLDM 2: Learning Holistic Audio Generation with Self-supervised Pretraining](https://huggingface.co/papers/2308.05734) by Haohe Liu et al. AudioLDM 2 takes a text prompt as input and predicts the corresponding audio. It can generate text-conditional sound effects, human speech and music. + +Inspired by [Stable Diffusion](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/overview), AudioLDM 2 is a text-to-audio _latent diffusion model (LDM)_ that learns continuous audio representations from text embeddings. Two text encoder models are used to compute the text embeddings from a prompt input: the text-branch of [CLAP](https://huggingface.co/docs/transformers/main/en/model_doc/clap) and the encoder of [Flan-T5](https://huggingface.co/docs/transformers/main/en/model_doc/flan-t5). These text embeddings are then projected to a shared embedding space by an [AudioLDM2ProjectionModel](https://huggingface.co/docs/diffusers/main/api/pipelines/audioldm2#diffusers.AudioLDM2ProjectionModel). A [GPT2](https://huggingface.co/docs/transformers/main/en/model_doc/gpt2) _language model (LM)_ is used to auto-regressively predict eight new embedding vectors, conditional on the projected CLAP and Flan-T5 embeddings. The generated embedding vectors and Flan-T5 text embeddings are used as cross-attention conditioning in the LDM. The [UNet](https://huggingface.co/docs/diffusers/main/en/api/pipelines/audioldm2#diffusers.AudioLDM2UNet2DConditionModel) of AudioLDM 2 is unique in the sense that it takes **two** cross-attention embeddings, as opposed to one cross-attention conditioning, as in most other LDMs. + +The abstract of the paper is the following: + +*Although audio generation shares commonalities across different types of audio, such as speech, music, and sound effects, designing models for each type requires careful consideration of specific objectives and biases that can significantly differ from those of other types. To bring us closer to a unified perspective of audio generation, this paper proposes a framework that utilizes the same learning method for speech, music, and sound effect generation. Our framework introduces a general representation of audio, called "language of audio" (LOA). Any audio can be translated into LOA based on AudioMAE, a self-supervised pre-trained representation learning model. In the generation process, we translate any modalities into LOA by using a GPT-2 model, and we perform self-supervised audio generation learning with a latent diffusion model conditioned on LOA. The proposed framework naturally brings advantages such as in-context learning abilities and reusable self-supervised pretrained AudioMAE and latent diffusion models. Experiments on the major benchmarks of text-to-audio, text-to-music, and text-to-speech demonstrate state-of-the-art or competitive performance against previous approaches. Our code, pretrained model, and demo are available at [this https URL](https://audioldm.github.io/audioldm2).* + +This pipeline was contributed by [sanchit-gandhi](https://huggingface.co/sanchit-gandhi) and [Nguyễn Công Tú Anh](https://github.com/tuanh123789). The original codebase can be +found at [haoheliu/audioldm2](https://github.com/haoheliu/audioldm2). + +## Tips + +### Choosing a checkpoint + +AudioLDM2 comes in three variants. Two of these checkpoints are applicable to the general task of text-to-audio generation. The third checkpoint is trained exclusively on text-to-music generation. + +All checkpoints share the same model size for the text encoders and VAE. They differ in the size and depth of the UNet. +See table below for details on the three checkpoints: + +| Checkpoint | Task | UNet Model Size | Total Model Size | Training Data / h | +|-----------------------------------------------------------------|---------------|-----------------|------------------|-------------------| +| [audioldm2](https://huggingface.co/cvssp/audioldm2) | Text-to-audio | 350M | 1.1B | 1150k | +| [audioldm2-large](https://huggingface.co/cvssp/audioldm2-large) | Text-to-audio | 750M | 1.5B | 1150k | +| [audioldm2-music](https://huggingface.co/cvssp/audioldm2-music) | Text-to-music | 350M | 1.1B | 665k | +| [audioldm2-gigaspeech](https://huggingface.co/anhnct/audioldm2_gigaspeech) | Text-to-speech | 350M | 1.1B |10k | +| [audioldm2-ljspeech](https://huggingface.co/anhnct/audioldm2_ljspeech) | Text-to-speech | 350M | 1.1B | | + +### Constructing a prompt + +* Descriptive prompt inputs work best: use adjectives to describe the sound (e.g. "high quality" or "clear") and make the prompt context specific (e.g. "water stream in a forest" instead of "stream"). +* It's best to use general terms like "cat" or "dog" instead of specific names or abstract objects the model may not be familiar with. +* Using a **negative prompt** can significantly improve the quality of the generated waveform, by guiding the generation away from terms that correspond to poor quality audio. Try using a negative prompt of "Low quality." + +### Controlling inference + +* The _quality_ of the predicted audio sample can be controlled by the `num_inference_steps` argument; higher steps give higher quality audio at the expense of slower inference. +* The _length_ of the predicted audio sample can be controlled by varying the `audio_length_in_s` argument. + +### Evaluating generated waveforms: + +* The quality of the generated waveforms can vary significantly based on the seed. Try generating with different seeds until you find a satisfactory generation. +* Multiple waveforms can be generated in one go: set `num_waveforms_per_prompt` to a value greater than 1. Automatic scoring will be performed between the generated waveforms and prompt text, and the audios ranked from best to worst accordingly. + +The following example demonstrates how to construct good music and speech generation using the aforementioned tips: [example](https://huggingface.co/docs/diffusers/main/en/api/pipelines/audioldm2#diffusers.AudioLDM2Pipeline.__call__.example). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## AudioLDM2Pipeline +[[autodoc]] AudioLDM2Pipeline + - all + - __call__ + +## AudioLDM2ProjectionModel +[[autodoc]] AudioLDM2ProjectionModel + - forward + +## AudioLDM2UNet2DConditionModel +[[autodoc]] AudioLDM2UNet2DConditionModel + - forward + +## AudioPipelineOutput +[[autodoc]] pipelines.AudioPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/aura_flow.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/aura_flow.md new file mode 100644 index 0000000000000000000000000000000000000000..67951859b962ccffeb454ce67832f827a2d81801 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/aura_flow.md @@ -0,0 +1,110 @@ + + +# AuraFlow + +AuraFlow is inspired by [Stable Diffusion 3](../pipelines/stable_diffusion/stable_diffusion_3) and is by far the largest text-to-image generation model that comes with an Apache 2.0 license. This model achieves state-of-the-art results on the [GenEval](https://github.com/djghosh13/geneval) benchmark. + +It was developed by the Fal team and more details about it can be found in [this blog post](https://blog.fal.ai/auraflow/). + +> [!TIP] +> AuraFlow can be quite expensive to run on consumer hardware devices. However, you can perform a suite of optimizations to run it faster and in a more memory-friendly manner. Check out [this section](https://huggingface.co/blog/sd3#memory-optimizations-for-sd3) for more details. + +## Quantization + +Quantization helps reduce the memory requirements of very large models by storing model weights in a lower precision data type. However, quantization may have varying impact on video quality depending on the video model. + +Refer to the [Quantization](../../quantization/overview) overview to learn more about supported quantization backends and selecting a quantization backend that supports your use case. The example below demonstrates how to load a quantized [`AuraFlowPipeline`] for inference with bitsandbytes. + +```py +import torch +from diffusers import BitsAndBytesConfig as DiffusersBitsAndBytesConfig, AuraFlowTransformer2DModel, AuraFlowPipeline +from transformers import BitsAndBytesConfig as BitsAndBytesConfig, T5EncoderModel + +quant_config = BitsAndBytesConfig(load_in_8bit=True) +text_encoder_8bit = T5EncoderModel.from_pretrained( + "fal/AuraFlow", + subfolder="text_encoder", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +quant_config = DiffusersBitsAndBytesConfig(load_in_8bit=True) +transformer_8bit = AuraFlowTransformer2DModel.from_pretrained( + "fal/AuraFlow", + subfolder="transformer", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +pipeline = AuraFlowPipeline.from_pretrained( + "fal/AuraFlow", + text_encoder=text_encoder_8bit, + transformer=transformer_8bit, + torch_dtype=torch.float16, + device_map="balanced", +) + +prompt = "a tiny astronaut hatching from an egg on the moon" +image = pipeline(prompt).images[0] +image.save("auraflow.png") +``` + +Loading [GGUF checkpoints](https://huggingface.co/docs/diffusers/quantization/gguf) are also supported: + +```py +import torch +from diffusers import ( + AuraFlowPipeline, + GGUFQuantizationConfig, + AuraFlowTransformer2DModel, +) + +transformer = AuraFlowTransformer2DModel.from_single_file( + "https://huggingface.co/city96/AuraFlow-v0.3-gguf/blob/main/aura_flow_0.3-Q2_K.gguf", + quantization_config=GGUFQuantizationConfig(compute_dtype=torch.bfloat16), + torch_dtype=torch.bfloat16, +) + +pipeline = AuraFlowPipeline.from_pretrained( + "fal/AuraFlow-v0.3", + transformer=transformer, + torch_dtype=torch.bfloat16, +) + +prompt = "a cute pony in a field of flowers" +image = pipeline(prompt).images[0] +image.save("auraflow.png") +``` + +## Support for `torch.compile()` + +AuraFlow can be compiled with `torch.compile()` to speed up inference latency even for different resolutions. First, install PyTorch nightly following the instructions from [here](https://pytorch.org/). The snippet below shows the changes needed to enable this: + +```diff ++ torch.fx.experimental._config.use_duck_shape = False ++ pipeline.transformer = torch.compile( + pipeline.transformer, fullgraph=True, dynamic=True +) +``` + +Specifying `use_duck_shape` to be `False` instructs the compiler if it should use the same symbolic variable to represent input sizes that are the same. For more details, check out [this comment](https://github.com/huggingface/diffusers/pull/11327#discussion_r2047659790). + +This enables from 100% (on low resolutions) to a 30% (on 1536x1536 resolution) speed improvements. + +Thanks to [AstraliteHeart](https://github.com/huggingface/diffusers/pull/11297/) who helped us rewrite the [`AuraFlowTransformer2DModel`] class so that the above works for different resolutions ([PR](https://github.com/huggingface/diffusers/pull/11297/)). + +## AuraFlowPipeline + +[[autodoc]] AuraFlowPipeline + - all + - __call__ \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/auto_pipeline.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/auto_pipeline.md new file mode 100644 index 0000000000000000000000000000000000000000..a2bd1c5c3a72cc03c38a62e6492146a876dca0a6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/auto_pipeline.md @@ -0,0 +1,39 @@ + + +# AutoPipeline + +The `AutoPipeline` is designed to make it easy to load a checkpoint for a task without needing to know the specific pipeline class. Based on the task, the `AutoPipeline` automatically retrieves the correct pipeline class from the checkpoint `model_index.json` file. + +> [!TIP] +> Check out the [AutoPipeline](../../tutorials/autopipeline) tutorial to learn how to use this API! + +## AutoPipelineForText2Image + +[[autodoc]] AutoPipelineForText2Image + - all + - from_pretrained + - from_pipe + +## AutoPipelineForImage2Image + +[[autodoc]] AutoPipelineForImage2Image + - all + - from_pretrained + - from_pipe + +## AutoPipelineForInpainting + +[[autodoc]] AutoPipelineForInpainting + - all + - from_pretrained + - from_pipe diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/blip_diffusion.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/blip_diffusion.md new file mode 100644 index 0000000000000000000000000000000000000000..b9c6ed7b5fbf8079ee385d28756f9b73b1794a90 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/blip_diffusion.md @@ -0,0 +1,41 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# BLIP-Diffusion + +BLIP-Diffusion was proposed in [BLIP-Diffusion: Pre-trained Subject Representation for Controllable Text-to-Image Generation and Editing](https://huggingface.co/papers/2305.14720). It enables zero-shot subject-driven generation and control-guided zero-shot generation. + + +The abstract from the paper is: + +*Subject-driven text-to-image generation models create novel renditions of an input subject based on text prompts. Existing models suffer from lengthy fine-tuning and difficulties preserving the subject fidelity. To overcome these limitations, we introduce BLIP-Diffusion, a new subject-driven image generation model that supports multimodal control which consumes inputs of subject images and text prompts. Unlike other subject-driven generation models, BLIP-Diffusion introduces a new multimodal encoder which is pre-trained to provide subject representation. We first pre-train the multimodal encoder following BLIP-2 to produce visual representation aligned with the text. Then we design a subject representation learning task which enables a diffusion model to leverage such visual representation and generates new subject renditions. Compared with previous methods such as DreamBooth, our model enables zero-shot subject-driven generation, and efficient fine-tuning for customized subject with up to 20x speedup. We also demonstrate that BLIP-Diffusion can be flexibly combined with existing techniques such as ControlNet and prompt-to-prompt to enable novel subject-driven generation and editing applications. Project page at [this https URL](https://dxli94.github.io/BLIP-Diffusion-website/).* + +The original codebase can be found at [salesforce/LAVIS](https://github.com/salesforce/LAVIS/tree/main/projects/blip-diffusion). You can find the official BLIP-Diffusion checkpoints under the [hf.co/SalesForce](https://hf.co/SalesForce) organization. + +`BlipDiffusionPipeline` and `BlipDiffusionControlNetPipeline` were contributed by [`ayushtues`](https://github.com/ayushtues/). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + + +## BlipDiffusionPipeline +[[autodoc]] BlipDiffusionPipeline + - all + - __call__ + +## BlipDiffusionControlNetPipeline +[[autodoc]] BlipDiffusionControlNetPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/bria_3_2.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/bria_3_2.md new file mode 100644 index 0000000000000000000000000000000000000000..059fa01f9f83b5d35ec91dc3876c21a225662562 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/bria_3_2.md @@ -0,0 +1,44 @@ + + +# Bria 3.2 + +Bria 3.2 is the next-generation commercial-ready text-to-image model. With just 4 billion parameters, it provides exceptional aesthetics and text rendering, evaluated to provide on par results to leading open-source models, and outperforming other licensed models. +In addition to being built entirely on licensed data, 3.2 provides several advantages for enterprise and commercial use: + +- Efficient Compute - the model is X3 smaller than the equivalent models in the market (4B parameters vs 12B parameters other open source models) +- Architecture Consistency: Same architecture as 3.1—ideal for users looking to upgrade without disruption. +- Fine-tuning Speedup: 2x faster fine-tuning on L40S and A100. + +Original model checkpoints for Bria 3.2 can be found [here](https://huggingface.co/briaai/BRIA-3.2). +Github repo for Bria 3.2 can be found [here](https://github.com/Bria-AI/BRIA-3.2). + +If you want to learn more about the Bria platform, and get free traril access, please visit [bria.ai](https://bria.ai). + + +## Usage + +_As the model is gated, before using it with diffusers you first need to go to the [Bria 3.2 Hugging Face page](https://huggingface.co/briaai/BRIA-3.2), fill in the form and accept the gate. Once you are in, you need to login so that your system knows you’ve accepted the gate._ + +Use the command below to log in: + +```bash +hf auth login +``` + + +## BriaPipeline + +[[autodoc]] BriaPipeline + - all + - __call__ + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/bria_fibo.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/bria_fibo.md new file mode 100644 index 0000000000000000000000000000000000000000..96cad10dda15b67fa9ccd32ed91a71cf38a01315 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/bria_fibo.md @@ -0,0 +1,45 @@ + + +# Bria Fibo + +Text-to-image models have mastered imagination - but not control. FIBO changes that. + +FIBO is trained on structured JSON captions up to 1,000+ words and designed to understand and control different visual parameters such as lighting, composition, color, and camera settings, enabling precise and reproducible outputs. + +With only 8 billion parameters, FIBO provides a new level of image quality, prompt adherence and proffesional control. + +FIBO is trained exclusively on a structured prompt and will not work with freeform text prompts. +you can use the [FIBO-VLM-prompt-to-JSON](https://huggingface.co/briaai/FIBO-VLM-prompt-to-JSON) model or the [FIBO-gemini-prompt-to-JSON](https://huggingface.co/briaai/FIBO-gemini-prompt-to-JSON) to convert your freeform text prompt to a structured JSON prompt. + +its not recommended to use freeform text prompts directly with FIBO, as it will not produce the best results. + +you can learn more about FIBO in [Bria Fibo Hugging Face page](https://huggingface.co/briaai/FIBO). + + +## Usage + +_As the model is gated, before using it with diffusers you first need to go to the [Bria Fibo Hugging Face page](https://huggingface.co/briaai/FIBO), fill in the form and accept the gate. Once you are in, you need to login so that your system knows you’ve accepted the gate._ + +Use the command below to log in: + +```bash +hf auth login +``` + + +## BriaPipeline + +[[autodoc]] BriaPipeline + - all + - __call__ + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/chroma.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/chroma.md new file mode 100644 index 0000000000000000000000000000000000000000..cc52ffa09a6d35980d7064a0ca9710564522c83b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/chroma.md @@ -0,0 +1,101 @@ + + +# Chroma + +
+ LoRA + MPS +
+ +Chroma is a text to image generation model based on Flux. + +Original model checkpoints for Chroma can be found here: +* High-resolution finetune: [lodestones/Chroma1-HD](https://huggingface.co/lodestones/Chroma1-HD) +* Base model: [lodestones/Chroma1-Base](https://huggingface.co/lodestones/Chroma1-Base) +* Original repo with progress checkpoints: [lodestones/Chroma](https://huggingface.co/lodestones/Chroma) (loading this repo with `from_pretrained` will load a Diffusers-compatible version of the `unlocked-v37` checkpoint) + +> [!TIP] +> Chroma can use all the same optimizations as Flux. + +## Inference + +```python +import torch +from diffusers import ChromaPipeline + +pipe = ChromaPipeline.from_pretrained("lodestones/Chroma1-HD", torch_dtype=torch.bfloat16) +pipe.enable_model_cpu_offload() + +prompt = [ + "A high-fashion close-up portrait of a blonde woman in clear sunglasses. The image uses a bold teal and red color split for dramatic lighting. The background is a simple teal-green. The photo is sharp and well-composed, and is designed for viewing with anaglyph 3D glasses for optimal effect. It looks professionally done." +] +negative_prompt = ["low quality, ugly, unfinished, out of focus, deformed, disfigure, blurry, smudged, restricted palette, flat colors"] + +image = pipe( + prompt=prompt, + negative_prompt=negative_prompt, + generator=torch.Generator("cpu").manual_seed(433), + num_inference_steps=40, + guidance_scale=3.0, + num_images_per_prompt=1, +).images[0] +image.save("chroma.png") +``` + +## Loading from a single file + +To use updated model checkpoints that are not in the Diffusers format, you can use the `ChromaTransformer2DModel` class to load the model from a single file in the original format. This is also useful when trying to load finetunes or quantized versions of the models that have been published by the community. + +The following example demonstrates how to run Chroma from a single file. + +Then run the following example + +```python +import torch +from diffusers import ChromaTransformer2DModel, ChromaPipeline + +model_id = "lodestones/Chroma1-HD" +dtype = torch.bfloat16 + +transformer = ChromaTransformer2DModel.from_single_file("https://huggingface.co/lodestones/Chroma1-HD/blob/main/Chroma1-HD.safetensors", torch_dtype=dtype) + +pipe = ChromaPipeline.from_pretrained(model_id, transformer=transformer, torch_dtype=dtype) +pipe.enable_model_cpu_offload() + +prompt = [ + "A high-fashion close-up portrait of a blonde woman in clear sunglasses. The image uses a bold teal and red color split for dramatic lighting. The background is a simple teal-green. The photo is sharp and well-composed, and is designed for viewing with anaglyph 3D glasses for optimal effect. It looks professionally done." +] +negative_prompt = ["low quality, ugly, unfinished, out of focus, deformed, disfigure, blurry, smudged, restricted palette, flat colors"] + +image = pipe( + prompt=prompt, + negative_prompt=negative_prompt, + generator=torch.Generator("cpu").manual_seed(433), + num_inference_steps=40, + guidance_scale=3.0, +).images[0] + +image.save("chroma-single-file.png") +``` + +## ChromaPipeline + +[[autodoc]] ChromaPipeline + - all + - __call__ + +## ChromaImg2ImgPipeline + +[[autodoc]] ChromaImg2ImgPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/chronoedit.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/chronoedit.md new file mode 100644 index 0000000000000000000000000000000000000000..48e70ab9e55e87edef6ae45169cf93475895444c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/chronoedit.md @@ -0,0 +1,156 @@ + + +
+
+ + LoRA + +
+
+ +# ChronoEdit + +[ChronoEdit: Towards Temporal Reasoning for Image Editing and World Simulation](https://huggingface.co/papers/2510.04290) from NVIDIA and University of Toronto, by Jay Zhangjie Wu, Xuanchi Ren, Tianchang Shen, Tianshi Cao, Kai He, Yifan Lu, Ruiyuan Gao, Enze Xie, Shiyi Lan, Jose M. Alvarez, Jun Gao, Sanja Fidler, Zian Wang, Huan Ling. + +> **TL;DR:** ChronoEdit reframes image editing as a video generation task, using input and edited images as start/end frames to leverage pretrained video models with temporal consistency. A temporal reasoning stage introduces reasoning tokens to ensure physically plausible edits and visualize the editing trajectory. + +*Recent advances in large generative models have greatly enhanced both image editing and in-context image generation, yet a critical gap remains in ensuring physical consistency, where edited objects must remain coherent. This capability is especially vital for world simulation related tasks. In this paper, we present ChronoEdit, a framework that reframes image editing as a video generation problem. First, ChronoEdit treats the input and edited images as the first and last frames of a video, allowing it to leverage large pretrained video generative models that capture not only object appearance but also the implicit physics of motion and interaction through learned temporal consistency. Second, ChronoEdit introduces a temporal reasoning stage that explicitly performs editing at inference time. Under this setting, target frame is jointly denoised with reasoning tokens to imagine a plausible editing trajectory that constrains the solution space to physically viable transformations. The reasoning tokens are then dropped after a few steps to avoid the high computational cost of rendering a full video. To validate ChronoEdit, we introduce PBench-Edit, a new benchmark of image-prompt pairs for contexts that require physical consistency, and demonstrate that ChronoEdit surpasses state-of-the-art baselines in both visual fidelity and physical plausibility. Project page for code and models: [this https URL](https://research.nvidia.com/labs/toronto-ai/chronoedit).* + +The ChronoEdit pipeline is developed by the ChronoEdit Team. The original code is available on [GitHub](https://github.com/nv-tlabs/ChronoEdit), and pretrained models can be found in the [nvidia/ChronoEdit](https://huggingface.co/collections/nvidia/chronoedit) collection on Hugging Face. + + +### Image Editing + +```py +import torch +import numpy as np +from diffusers import AutoencoderKLWan, ChronoEditTransformer3DModel, ChronoEditPipeline +from diffusers.utils import export_to_video, load_image +from transformers import CLIPVisionModel +from PIL import Image + +model_id = "nvidia/ChronoEdit-14B-Diffusers" +image_encoder = CLIPVisionModel.from_pretrained(model_id, subfolder="image_encoder", torch_dtype=torch.float32) +vae = AutoencoderKLWan.from_pretrained(model_id, subfolder="vae", torch_dtype=torch.float32) +transformer = ChronoEditTransformer3DModel.from_pretrained(model_id, subfolder="transformer", torch_dtype=torch.bfloat16) +pipe = ChronoEditPipeline.from_pretrained(model_id, image_encoder=image_encoder, transformer=transformer, vae=vae, torch_dtype=torch.bfloat16) +pipe.to("cuda") + +image = load_image( + "https://huggingface.co/spaces/nvidia/ChronoEdit/resolve/main/examples/3.png" +) +max_area = 720 * 1280 +aspect_ratio = image.height / image.width +mod_value = pipe.vae_scale_factor_spatial * pipe.transformer.config.patch_size[1] +height = round(np.sqrt(max_area * aspect_ratio)) // mod_value * mod_value +width = round(np.sqrt(max_area / aspect_ratio)) // mod_value * mod_value +print("width", width, "height", height) +image = image.resize((width, height)) +prompt = ( + "The user wants to transform the image by adding a small, cute mouse sitting inside the floral teacup, enjoying a spa bath. The mouse should appear relaxed and cheerful, with a tiny white bath towel draped over its head like a turban. It should be positioned comfortably in the cup’s liquid, with gentle steam rising around it to blend with the cozy atmosphere. " + "The mouse’s pose should be natural—perhaps sitting upright with paws resting lightly on the rim or submerged in the tea. The teacup’s floral design, gold trim, and warm lighting must remain unchanged to preserve the original aesthetic. The steam should softly swirl around the mouse, enhancing the spa-like, whimsical mood." +) + +output = pipe( + image=image, + prompt=prompt, + height=height, + width=width, + num_frames=5, + num_inference_steps=50, + guidance_scale=5.0, + enable_temporal_reasoning=False, + num_temporal_reasoning_steps=0, +).frames[0] +Image.fromarray((output[-1] * 255).clip(0, 255).astype("uint8")).save("output.png") +``` + +Optionally, enable **temporal reasoning** for improved physical consistency: +```py +output = pipe( + image=image, + prompt=prompt, + height=height, + width=width, + num_frames=29, + num_inference_steps=50, + guidance_scale=5.0, + enable_temporal_reasoning=True, + num_temporal_reasoning_steps=50, +).frames[0] +export_to_video(output, "output.mp4", fps=16) +Image.fromarray((output[-1] * 255).clip(0, 255).astype("uint8")).save("output.png") +``` + +### Inference with 8-Step Distillation Lora + +```py +import torch +import numpy as np +from diffusers import AutoencoderKLWan, ChronoEditTransformer3DModel, ChronoEditPipeline +from diffusers.utils import export_to_video, load_image +from transformers import CLIPVisionModel +from PIL import Image + +model_id = "nvidia/ChronoEdit-14B-Diffusers" +image_encoder = CLIPVisionModel.from_pretrained(model_id, subfolder="image_encoder", torch_dtype=torch.float32) +vae = AutoencoderKLWan.from_pretrained(model_id, subfolder="vae", torch_dtype=torch.float32) +transformer = ChronoEditTransformer3DModel.from_pretrained(model_id, subfolder="transformer", torch_dtype=torch.bfloat16) +pipe = ChronoEditPipeline.from_pretrained(model_id, image_encoder=image_encoder, transformer=transformer, vae=vae, torch_dtype=torch.bfloat16) +lora_path = hf_hub_download(repo_id=model_id, filename="lora/chronoedit_distill_lora.safetensors") +pipe.load_lora_weights(lora_path) +pipe.fuse_lora(lora_scale=1.0) +pipe.scheduler = UniPCMultistepScheduler.from_config(pipe.scheduler.config, flow_shift=2.0) +pipe.to("cuda") + +image = load_image( + "https://huggingface.co/spaces/nvidia/ChronoEdit/resolve/main/examples/3.png" +) +max_area = 720 * 1280 +aspect_ratio = image.height / image.width +mod_value = pipe.vae_scale_factor_spatial * pipe.transformer.config.patch_size[1] +height = round(np.sqrt(max_area * aspect_ratio)) // mod_value * mod_value +width = round(np.sqrt(max_area / aspect_ratio)) // mod_value * mod_value +print("width", width, "height", height) +image = image.resize((width, height)) +prompt = ( + "The user wants to transform the image by adding a small, cute mouse sitting inside the floral teacup, enjoying a spa bath. The mouse should appear relaxed and cheerful, with a tiny white bath towel draped over its head like a turban. It should be positioned comfortably in the cup’s liquid, with gentle steam rising around it to blend with the cozy atmosphere. " + "The mouse’s pose should be natural—perhaps sitting upright with paws resting lightly on the rim or submerged in the tea. The teacup’s floral design, gold trim, and warm lighting must remain unchanged to preserve the original aesthetic. The steam should softly swirl around the mouse, enhancing the spa-like, whimsical mood." +) + +output = pipe( + image=image, + prompt=prompt, + height=height, + width=width, + num_frames=5, + num_inference_steps=8, + guidance_scale=1.0, + enable_temporal_reasoning=False, + num_temporal_reasoning_steps=0, +).frames[0] +export_to_video(output, "output.mp4", fps=16) +Image.fromarray((output[-1] * 255).clip(0, 255).astype("uint8")).save("output.png") +``` + +## ChronoEditPipeline + +[[autodoc]] ChronoEditPipeline + - all + - __call__ + +## ChronoEditPipelineOutput + +[[autodoc]] pipelines.chronoedit.pipeline_output.ChronoEditPipelineOutput \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogvideox.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogvideox.md new file mode 100644 index 0000000000000000000000000000000000000000..ec673e0763c57ce84129dcc93f55d1d9f14b5810 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogvideox.md @@ -0,0 +1,217 @@ + + +
+
+ + LoRA + +
+
+ +# CogVideoX + +[CogVideoX](https://huggingface.co/papers/2408.06072) is a large diffusion transformer model - available in 2B and 5B parameters - designed to generate longer and more consistent videos from text. This model uses a 3D causal variational autoencoder to more efficiently process video data by reducing sequence length (and associated training compute) and preventing flickering in generated videos. An "expert" transformer with adaptive LayerNorm improves alignment between text and video, and 3D full attention helps accurately capture motion and time in generated videos. + +You can find all the original CogVideoX checkpoints under the [CogVideoX](https://huggingface.co/collections/THUDM/cogvideo-66c08e62f1685a3ade464cce) collection. + +> [!TIP] +> Click on the CogVideoX models in the right sidebar for more examples of other video generation tasks. + +The example below demonstrates how to generate a video optimized for memory or inference speed. + + + + +Refer to the [Reduce memory usage](../../optimization/memory) guide for more details about the various memory saving techniques. + +The quantized CogVideoX 5B model below requires ~16GB of VRAM. + +```py +import torch +from diffusers import CogVideoXPipeline, AutoModel +from diffusers.quantizers import PipelineQuantizationConfig +from diffusers.hooks import apply_group_offloading +from diffusers.utils import export_to_video + +# quantize weights to int8 with torchao +pipeline_quant_config = PipelineQuantizationConfig( + quant_backend="torchao", + quant_kwargs={"quant_type": "int8wo"}, + components_to_quantize="transformer" +) + +# fp8 layerwise weight-casting +transformer = AutoModel.from_pretrained( + "THUDM/CogVideoX-5b", + subfolder="transformer", + torch_dtype=torch.bfloat16 +) +transformer.enable_layerwise_casting( + storage_dtype=torch.float8_e4m3fn, compute_dtype=torch.bfloat16 +) + +pipeline = CogVideoXPipeline.from_pretrained( + "THUDM/CogVideoX-5b", + transformer=transformer, + quantization_config=pipeline_quant_config, + torch_dtype=torch.bfloat16 +) +pipeline.to("cuda") + +# model-offloading +pipeline.enable_model_cpu_offload() + +prompt = """ +A detailed wooden toy ship with intricately carved masts and sails is seen gliding smoothly over a plush, blue carpet that mimics the waves of the sea. +The ship's hull is painted a rich brown, with tiny windows. The carpet, soft and textured, provides a perfect backdrop, resembling an oceanic expanse. +Surrounding the ship are various other toys and children's items, hinting at a playful environment. The scene captures the innocence and imagination of childhood, +with the toy ship's journey symbolizing endless adventures in a whimsical, indoor setting. +""" + +video = pipeline( + prompt=prompt, + guidance_scale=6, + num_inference_steps=50 +).frames[0] +export_to_video(video, "output.mp4", fps=8) +``` + + + + +[Compilation](../../optimization/fp16#torchcompile) is slow the first time but subsequent calls to the pipeline are faster. + +The average inference time with torch.compile on a 80GB A100 is 76.27 seconds compared to 96.89 seconds for an uncompiled model. + +```py +import torch +from diffusers import CogVideoXPipeline +from diffusers.utils import export_to_video + +pipeline = CogVideoXPipeline.from_pretrained( + "THUDM/CogVideoX-2b", + torch_dtype=torch.float16 +).to("cuda") + +# torch.compile +pipeline.transformer.to(memory_format=torch.channels_last) +pipeline.transformer = torch.compile( + pipeline.transformer, mode="max-autotune", fullgraph=True +) + +prompt = """ +A detailed wooden toy ship with intricately carved masts and sails is seen gliding smoothly over a plush, blue carpet that mimics the waves of the sea. +The ship's hull is painted a rich brown, with tiny windows. The carpet, soft and textured, provides a perfect backdrop, resembling an oceanic expanse. +Surrounding the ship are various other toys and children's items, hinting at a playful environment. The scene captures the innocence and imagination of childhood, +with the toy ship's journey symbolizing endless adventures in a whimsical, indoor setting. +""" + +video = pipeline( + prompt=prompt, + guidance_scale=6, + num_inference_steps=50 +).frames[0] +export_to_video(video, "output.mp4", fps=8) +``` + + + + +## Notes + +- CogVideoX supports LoRAs with [`~loaders.CogVideoXLoraLoaderMixin.load_lora_weights`]. + +
+ Show example code + + ```py + import torch + from diffusers import CogVideoXPipeline + from diffusers.hooks import apply_group_offloading + from diffusers.utils import export_to_video + + pipeline = CogVideoXPipeline.from_pretrained( + "THUDM/CogVideoX-5b", + torch_dtype=torch.bfloat16 + ) + pipeline.to("cuda") + + # load LoRA weights + pipeline.load_lora_weights("finetrainers/CogVideoX-1.5-crush-smol-v0", adapter_name="crush-lora") + pipeline.set_adapters("crush-lora", 0.9) + + # model-offloading + pipeline.enable_model_cpu_offload() + + prompt = """ + PIKA_CRUSH A large metal cylinder is seen pressing down on a pile of Oreo cookies, flattening them as if they were under a hydraulic press. + """ + negative_prompt = "inconsistent motion, blurry motion, worse quality, degenerate outputs, deformed outputs" + + video = pipeline( + prompt=prompt, + negative_prompt=negative_prompt, + num_frames=81, + height=480, + width=768, + num_inference_steps=50 + ).frames[0] + export_to_video(video, "output.mp4", fps=16) + ``` + +
+ +- The text-to-video (T2V) checkpoints work best with a resolution of 1360x768 because that was the resolution it was pretrained on. + +- The image-to-video (I2V) checkpoints work with multiple resolutions. The width can vary from 768 to 1360, but the height must be 758. Both height and width must be divisible by 16. + +- Both T2V and I2V checkpoints work best with 81 and 161 frames. It is recommended to export the generated video at 16fps. + +- Refer to the table below to view memory usage when various memory-saving techniques are enabled. + + | method | memory usage (enabled) | memory usage (disabled) | + |---|---|---| + | enable_model_cpu_offload | 19GB | 33GB | + | enable_sequential_cpu_offload | <4GB | ~33GB (very slow inference speed) | + | enable_tiling | 11GB (with enable_model_cpu_offload) | --- | + +## CogVideoXPipeline + +[[autodoc]] CogVideoXPipeline + - all + - __call__ + +## CogVideoXImageToVideoPipeline + +[[autodoc]] CogVideoXImageToVideoPipeline + - all + - __call__ + +## CogVideoXVideoToVideoPipeline + +[[autodoc]] CogVideoXVideoToVideoPipeline + - all + - __call__ + +## CogVideoXFunControlPipeline + +[[autodoc]] CogVideoXFunControlPipeline + - all + - __call__ + +## CogVideoXPipelineOutput + +[[autodoc]] pipelines.cogvideo.pipeline_output.CogVideoXPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogview3.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogview3.md new file mode 100644 index 0000000000000000000000000000000000000000..5ee02e1a7039873c8c1447669724eed01a430a6d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogview3.md @@ -0,0 +1,37 @@ + + +# CogView3Plus + +[CogView3: Finer and Faster Text-to-Image Generation via Relay Diffusion](https://huggingface.co/papers/2403.05121) from Tsinghua University & ZhipuAI, by Wendi Zheng, Jiayan Teng, Zhuoyi Yang, Weihan Wang, Jidong Chen, Xiaotao Gu, Yuxiao Dong, Ming Ding, Jie Tang. + +The abstract from the paper is: + +*Recent advancements in text-to-image generative systems have been largely driven by diffusion models. However, single-stage text-to-image diffusion models still face challenges, in terms of computational efficiency and the refinement of image details. To tackle the issue, we propose CogView3, an innovative cascaded framework that enhances the performance of text-to-image diffusion. CogView3 is the first model implementing relay diffusion in the realm of text-to-image generation, executing the task by first creating low-resolution images and subsequently applying relay-based super-resolution. This methodology not only results in competitive text-to-image outputs but also greatly reduces both training and inference costs. Our experimental results demonstrate that CogView3 outperforms SDXL, the current state-of-the-art open-source text-to-image diffusion model, by 77.0% in human evaluations, all while requiring only about 1/2 of the inference time. The distilled variant of CogView3 achieves comparable performance while only utilizing 1/10 of the inference time by SDXL.* + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +This pipeline was contributed by [zRzRzRzRzRzRzR](https://github.com/zRzRzRzRzRzRzR). The original codebase can be found [here](https://huggingface.co/THUDM). The original weights can be found under [hf.co/THUDM](https://huggingface.co/THUDM). + +## CogView3PlusPipeline + +[[autodoc]] CogView3PlusPipeline + - all + - __call__ + +## CogView3PipelineOutput + +[[autodoc]] pipelines.cogview3.pipeline_output.CogView3PipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogview4.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogview4.md new file mode 100644 index 0000000000000000000000000000000000000000..7857dc8c9476a92fdd91303722a2ff5759533473 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cogview4.md @@ -0,0 +1,31 @@ + + +# CogView4 + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +This pipeline was contributed by [zRzRzRzRzRzRzR](https://github.com/zRzRzRzRzRzRzR). The original codebase can be found [here](https://huggingface.co/THUDM). The original weights can be found under [hf.co/THUDM](https://huggingface.co/THUDM). + +## CogView4Pipeline + +[[autodoc]] CogView4Pipeline + - all + - __call__ + +## CogView4PipelineOutput + +[[autodoc]] pipelines.cogview4.pipeline_output.CogView4PipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/consisid.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/consisid.md new file mode 100644 index 0000000000000000000000000000000000000000..bba047292413f7b50c0d710eb9e9ede0f076564e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/consisid.md @@ -0,0 +1,61 @@ + + +# ConsisID + +
+ LoRA +
+ +[Identity-Preserving Text-to-Video Generation by Frequency Decomposition](https://huggingface.co/papers/2411.17440) from Peking University & University of Rochester & etc, by Shenghai Yuan, Jinfa Huang, Xianyi He, Yunyang Ge, Yujun Shi, Liuhan Chen, Jiebo Luo, Li Yuan. + +The abstract from the paper is: + +*Identity-preserving text-to-video (IPT2V) generation aims to create high-fidelity videos with consistent human identity. It is an important task in video generation but remains an open problem for generative models. This paper pushes the technical frontier of IPT2V in two directions that have not been resolved in the literature: (1) A tuning-free pipeline without tedious case-by-case finetuning, and (2) A frequency-aware heuristic identity-preserving Diffusion Transformer (DiT)-based control scheme. To achieve these goals, we propose **ConsisID**, a tuning-free DiT-based controllable IPT2V model to keep human-**id**entity **consis**tent in the generated video. Inspired by prior findings in frequency analysis of vision/diffusion transformers, it employs identity-control signals in the frequency domain, where facial features can be decomposed into low-frequency global features (e.g., profile, proportions) and high-frequency intrinsic features (e.g., identity markers that remain unaffected by pose changes). First, from a low-frequency perspective, we introduce a global facial extractor, which encodes the reference image and facial key points into a latent space, generating features enriched with low-frequency information. These features are then integrated into the shallow layers of the network to alleviate training challenges associated with DiT. Second, from a high-frequency perspective, we design a local facial extractor to capture high-frequency details and inject them into the transformer blocks, enhancing the model's ability to preserve fine-grained features. To leverage the frequency information for identity preservation, we propose a hierarchical training strategy, transforming a vanilla pre-trained video generation model into an IPT2V model. Extensive experiments demonstrate that our frequency-aware heuristic scheme provides an optimal control solution for DiT-based models. Thanks to this scheme, our **ConsisID** achieves excellent results in generating high-quality, identity-preserving videos, making strides towards more effective IPT2V. The model weight of ConsID is publicly available at https://github.com/PKU-YuanGroup/ConsisID.* + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers.md) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading.md#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +This pipeline was contributed by [SHYuanBest](https://github.com/SHYuanBest). The original codebase can be found [here](https://github.com/PKU-YuanGroup/ConsisID). The original weights can be found under [hf.co/BestWishYsh](https://huggingface.co/BestWishYsh). + +There are two official ConsisID checkpoints for identity-preserving text-to-video. + +| checkpoints | recommended inference dtype | +|:---:|:---:| +| [`BestWishYsh/ConsisID-preview`](https://huggingface.co/BestWishYsh/ConsisID-preview) | torch.bfloat16 | +| [`BestWishYsh/ConsisID-1.5`](https://huggingface.co/BestWishYsh/ConsisID-preview) | torch.bfloat16 | + +### Memory optimization + +ConsisID requires about 44 GB of GPU memory to decode 49 frames (6 seconds of video at 8 FPS) with output resolution 720x480 (W x H), which makes it not possible to run on consumer GPUs or free-tier T4 Colab. The following memory optimizations could be used to reduce the memory footprint. For replication, you can refer to [this](https://gist.github.com/SHYuanBest/bc4207c36f454f9e969adbb50eaf8258) script. + +| Feature (overlay the previous) | Max Memory Allocated | Max Memory Reserved | +| :----------------------------- | :------------------- | :------------------ | +| - | 37 GB | 44 GB | +| enable_model_cpu_offload | 22 GB | 25 GB | +| enable_sequential_cpu_offload | 16 GB | 22 GB | +| vae.enable_slicing | 16 GB | 22 GB | +| vae.enable_tiling | 5 GB | 7 GB | + +## ConsisIDPipeline + +[[autodoc]] ConsisIDPipeline + + - all + - __call__ + +## ConsisIDPipelineOutput + +[[autodoc]] pipelines.consisid.pipeline_output.ConsisIDPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/consistency_models.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/consistency_models.md new file mode 100644 index 0000000000000000000000000000000000000000..4f7b2f0fb501581c507ec71312d48d4ca0f3ef49 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/consistency_models.md @@ -0,0 +1,56 @@ + + +# Consistency Models + +Consistency Models were proposed in [Consistency Models](https://huggingface.co/papers/2303.01469) by Yang Song, Prafulla Dhariwal, Mark Chen, and Ilya Sutskever. + +The abstract from the paper is: + +*Diffusion models have significantly advanced the fields of image, audio, and video generation, but they depend on an iterative sampling process that causes slow generation. To overcome this limitation, we propose consistency models, a new family of models that generate high quality samples by directly mapping noise to data. They support fast one-step generation by design, while still allowing multistep sampling to trade compute for sample quality. They also support zero-shot data editing, such as image inpainting, colorization, and super-resolution, without requiring explicit training on these tasks. Consistency models can be trained either by distilling pre-trained diffusion models, or as standalone generative models altogether. Through extensive experiments, we demonstrate that they outperform existing distillation techniques for diffusion models in one- and few-step sampling, achieving the new state-of-the-art FID of 3.55 on CIFAR-10 and 6.20 on ImageNet 64x64 for one-step generation. When trained in isolation, consistency models become a new family of generative models that can outperform existing one-step, non-adversarial generative models on standard benchmarks such as CIFAR-10, ImageNet 64x64 and LSUN 256x256.* + +The original codebase can be found at [openai/consistency_models](https://github.com/openai/consistency_models), and additional checkpoints are available at [openai](https://huggingface.co/openai). + +The pipeline was contributed by [dg845](https://github.com/dg845) and [ayushtues](https://huggingface.co/ayushtues). ❤️ + +## Tips + +For an additional speed-up, use `torch.compile` to generate multiple images in <1 second: + +```diff + import torch + from diffusers import ConsistencyModelPipeline + + device = "cuda" + # Load the cd_bedroom256_lpips checkpoint. + model_id_or_path = "openai/diffusers-cd_bedroom256_lpips" + pipe = ConsistencyModelPipeline.from_pretrained(model_id_or_path, torch_dtype=torch.float16) + pipe.to(device) + ++ pipe.unet = torch.compile(pipe.unet, mode="reduce-overhead", fullgraph=True) + + # Multistep sampling + # Timesteps can be explicitly specified; the particular timesteps below are from the original GitHub repo: + # https://github.com/openai/consistency_models/blob/main/scripts/launch.sh#L83 + for _ in range(10): + image = pipe(timesteps=[17, 0]).images[0] + image.show() +``` + + +## ConsistencyModelPipeline +[[autodoc]] ConsistencyModelPipeline + - all + - __call__ + +## ImagePipelineOutput +[[autodoc]] pipelines.ImagePipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/control_flux_inpaint.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/control_flux_inpaint.md new file mode 100644 index 0000000000000000000000000000000000000000..4b087f20efcde62bea9f2ae786e524b493aeab07 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/control_flux_inpaint.md @@ -0,0 +1,90 @@ + + +# FluxControlInpaint + +
+ LoRA +
+ +FluxControlInpaintPipeline is an implementation of Inpainting for Flux.1 Depth/Canny models. It is a pipeline that allows you to inpaint images using the Flux.1 Depth/Canny models. The pipeline takes an image and a mask as input and returns the inpainted image. + +FLUX.1 Depth and Canny [dev] is a 12 billion parameter rectified flow transformer capable of generating an image based on a text description while following the structure of a given input image. **This is not a ControlNet model**. + +| Control type | Developer | Link | +| -------- | ---------- | ---- | +| Depth | [Black Forest Labs](https://huggingface.co/black-forest-labs) | [Link](https://huggingface.co/black-forest-labs/FLUX.1-Depth-dev) | +| Canny | [Black Forest Labs](https://huggingface.co/black-forest-labs) | [Link](https://huggingface.co/black-forest-labs/FLUX.1-Canny-dev) | + + +> [!TIP] +> Flux can be quite expensive to run on consumer hardware devices. However, you can perform a suite of optimizations to run it faster and in a more memory-friendly manner. Check out [this section](https://huggingface.co/blog/sd3#memory-optimizations-for-sd3) for more details. Additionally, Flux can benefit from quantization for memory efficiency with a trade-off in inference latency. Refer to [this blog post](https://huggingface.co/blog/quanto-diffusers) to learn more. For an exhaustive list of resources, check out [this gist](https://gist.github.com/sayakpaul/b664605caf0aa3bf8585ab109dd5ac9c). + +```python +import torch +from diffusers import FluxControlInpaintPipeline +from diffusers.models.transformers import FluxTransformer2DModel +from transformers import T5EncoderModel +from diffusers.utils import load_image, make_image_grid +from image_gen_aux import DepthPreprocessor # https://github.com/huggingface/image_gen_aux +from PIL import Image +import numpy as np + +pipe = FluxControlInpaintPipeline.from_pretrained( + "black-forest-labs/FLUX.1-Depth-dev", + torch_dtype=torch.bfloat16, +) +# use following lines if you have GPU constraints +# --------------------------------------------------------------- +transformer = FluxTransformer2DModel.from_pretrained( + "sayakpaul/FLUX.1-Depth-dev-nf4", subfolder="transformer", torch_dtype=torch.bfloat16 +) +text_encoder_2 = T5EncoderModel.from_pretrained( + "sayakpaul/FLUX.1-Depth-dev-nf4", subfolder="text_encoder_2", torch_dtype=torch.bfloat16 +) +pipe.transformer = transformer +pipe.text_encoder_2 = text_encoder_2 +pipe.enable_model_cpu_offload() +# --------------------------------------------------------------- +pipe.to("cuda") + +prompt = "a blue robot singing opera with human-like expressions" +image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/robot.png") + +head_mask = np.zeros_like(image) +head_mask[65:580,300:642] = 255 +mask_image = Image.fromarray(head_mask) + +processor = DepthPreprocessor.from_pretrained("LiheYoung/depth-anything-large-hf") +control_image = processor(image)[0].convert("RGB") + +output = pipe( + prompt=prompt, + image=image, + control_image=control_image, + mask_image=mask_image, + num_inference_steps=30, + strength=0.9, + guidance_scale=10.0, + generator=torch.Generator().manual_seed(42), +).images[0] +make_image_grid([image, control_image, mask_image, output.resize(image.size)], rows=1, cols=4).save("output.png") +``` + +## FluxControlInpaintPipeline +[[autodoc]] FluxControlInpaintPipeline + - all + - __call__ + + +## FluxPipelineOutput +[[autodoc]] pipelines.flux.pipeline_output.FluxPipelineOutput \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet.md new file mode 100644 index 0000000000000000000000000000000000000000..afc0a4653e074240b4ce0931283915019cebcfe3 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet.md @@ -0,0 +1,71 @@ + + +# ControlNet + +
+ LoRA +
+ +ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. + +With a ControlNet model, you can provide an additional control image to condition and control Stable Diffusion generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +This model was contributed by [takuma104](https://huggingface.co/takuma104). ❤️ + +The original codebase can be found at [lllyasviel/ControlNet](https://github.com/lllyasviel/ControlNet), and you can find official ControlNet checkpoints on [lllyasviel's](https://huggingface.co/lllyasviel) Hub profile. + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## StableDiffusionControlNetPipeline +[[autodoc]] StableDiffusionControlNetPipeline + - all + - __call__ + - enable_attention_slicing + - disable_attention_slicing + - enable_vae_slicing + - disable_vae_slicing + - enable_xformers_memory_efficient_attention + - disable_xformers_memory_efficient_attention + - load_textual_inversion + +## StableDiffusionControlNetImg2ImgPipeline +[[autodoc]] StableDiffusionControlNetImg2ImgPipeline + - all + - __call__ + - enable_attention_slicing + - disable_attention_slicing + - enable_vae_slicing + - disable_vae_slicing + - enable_xformers_memory_efficient_attention + - disable_xformers_memory_efficient_attention + - load_textual_inversion + +## StableDiffusionControlNetInpaintPipeline +[[autodoc]] StableDiffusionControlNetInpaintPipeline + - all + - __call__ + - enable_attention_slicing + - disable_attention_slicing + - enable_vae_slicing + - disable_vae_slicing + - enable_xformers_memory_efficient_attention + - disable_xformers_memory_efficient_attention + - load_textual_inversion + +## StableDiffusionPipelineOutput +[[autodoc]] pipelines.stable_diffusion.StableDiffusionPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_flux.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_flux.md new file mode 100644 index 0000000000000000000000000000000000000000..ff38ca3f2c2eed7f86f71ec71ff316f4554d6e3f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_flux.md @@ -0,0 +1,57 @@ + + +# ControlNet with Flux.1 + +
+ LoRA +
+ +FluxControlNetPipeline is an implementation of ControlNet for Flux.1. + +ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. + +With a ControlNet model, you can provide an additional control image to condition and control Stable Diffusion generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +This controlnet code is implemented by [The InstantX Team](https://huggingface.co/InstantX). You can find pre-trained checkpoints for Flux-ControlNet in the table below: + + +| ControlNet type | Developer | Link | +| -------- | ---------- | ---- | +| Canny | [The InstantX Team](https://huggingface.co/InstantX) | [Link](https://huggingface.co/InstantX/FLUX.1-dev-Controlnet-Canny) | +| Depth | [The InstantX Team](https://huggingface.co/InstantX) | [Link](https://huggingface.co/Shakker-Labs/FLUX.1-dev-ControlNet-Depth) | +| Union | [The InstantX Team](https://huggingface.co/InstantX) | [Link](https://huggingface.co/InstantX/FLUX.1-dev-Controlnet-Union) | + +XLabs ControlNets are also supported, which was contributed by the [XLabs team](https://huggingface.co/XLabs-AI). + +| ControlNet type | Developer | Link | +| -------- | ---------- | ---- | +| Canny | [The XLabs Team](https://huggingface.co/XLabs-AI) | [Link](https://huggingface.co/XLabs-AI/flux-controlnet-canny-diffusers) | +| Depth | [The XLabs Team](https://huggingface.co/XLabs-AI) | [Link](https://huggingface.co/XLabs-AI/flux-controlnet-depth-diffusers) | +| HED | [The XLabs Team](https://huggingface.co/XLabs-AI) | [Link](https://huggingface.co/XLabs-AI/flux-controlnet-hed-diffusers) | + + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## FluxControlNetPipeline +[[autodoc]] FluxControlNetPipeline + - all + - __call__ + + +## FluxPipelineOutput +[[autodoc]] pipelines.flux.pipeline_output.FluxPipelineOutput \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_hunyuandit.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_hunyuandit.md new file mode 100644 index 0000000000000000000000000000000000000000..88dc2de10a64dbe449131c7e64a35913d1230fdf --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_hunyuandit.md @@ -0,0 +1,33 @@ + + +# ControlNet with Hunyuan-DiT + +HunyuanDiTControlNetPipeline is an implementation of ControlNet for [Hunyuan-DiT](https://huggingface.co/papers/2405.08748). + +ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. + +With a ControlNet model, you can provide an additional control image to condition and control Hunyuan-DiT generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +This code is implemented by Tencent Hunyuan Team. You can find pre-trained checkpoints for Hunyuan-DiT ControlNets on [Tencent Hunyuan](https://huggingface.co/Tencent-Hunyuan). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## HunyuanDiTControlNetPipeline +[[autodoc]] HunyuanDiTControlNetPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sana.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sana.md new file mode 100644 index 0000000000000000000000000000000000000000..d170d28e63edc2edec71fe397f06651ff320d341 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sana.md @@ -0,0 +1,36 @@ + + +# ControlNet + +
+ LoRA +
+ +ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. + +With a ControlNet model, you can provide an additional control image to condition and control Stable Diffusion generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +This pipeline was contributed by [ishan24](https://huggingface.co/ishan24). ❤️ +The original codebase can be found at [NVlabs/Sana](https://github.com/NVlabs/Sana), and you can find official ControlNet checkpoints on [Efficient-Large-Model's](https://huggingface.co/Efficient-Large-Model) Hub profile. + +## SanaControlNetPipeline +[[autodoc]] SanaControlNetPipeline + - all + - __call__ + +## SanaPipelineOutput +[[autodoc]] pipelines.sana.pipeline_output.SanaPipelineOutput \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sd3.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sd3.md new file mode 100644 index 0000000000000000000000000000000000000000..8cdada9edf431f887320c9fd0a8e2fab32583f7a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sd3.md @@ -0,0 +1,55 @@ + + +# ControlNet with Stable Diffusion 3 + +
+ LoRA +
+ +StableDiffusion3ControlNetPipeline is an implementation of ControlNet for Stable Diffusion 3. + +ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. + +With a ControlNet model, you can provide an additional control image to condition and control Stable Diffusion generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +This controlnet code is mainly implemented by [The InstantX Team](https://huggingface.co/InstantX). The inpainting-related code was developed by [The Alimama Creative Team](https://huggingface.co/alimama-creative). You can find pre-trained checkpoints for SD3-ControlNet in the table below: + + +| ControlNet type | Developer | Link | +| -------- | ---------- | ---- | +| Canny | [The InstantX Team](https://huggingface.co/InstantX) | [Link](https://huggingface.co/InstantX/SD3-Controlnet-Canny) | +| Depth | [The InstantX Team](https://huggingface.co/InstantX) | [Link](https://huggingface.co/InstantX/SD3-Controlnet-Depth) | +| Pose | [The InstantX Team](https://huggingface.co/InstantX) | [Link](https://huggingface.co/InstantX/SD3-Controlnet-Pose) | +| Tile | [The InstantX Team](https://huggingface.co/InstantX) | [Link](https://huggingface.co/InstantX/SD3-Controlnet-Tile) | +| Inpainting | [The AlimamaCreative Team](https://huggingface.co/alimama-creative) | [link](https://huggingface.co/alimama-creative/SD3-Controlnet-Inpainting) | + + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## StableDiffusion3ControlNetPipeline +[[autodoc]] StableDiffusion3ControlNetPipeline + - all + - __call__ + +## StableDiffusion3ControlNetInpaintingPipeline +[[autodoc]] pipelines.controlnet_sd3.pipeline_stable_diffusion_3_controlnet_inpainting.StableDiffusion3ControlNetInpaintingPipeline + - all + - __call__ + +## StableDiffusion3PipelineOutput +[[autodoc]] pipelines.stable_diffusion_3.pipeline_output.StableDiffusion3PipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sdxl.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sdxl.md new file mode 100644 index 0000000000000000000000000000000000000000..89fc1c389798e159a49dcaba63aee9dd8868066c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_sdxl.md @@ -0,0 +1,53 @@ + + +# ControlNet with Stable Diffusion XL + +
+ LoRA +
+ +ControlNet was introduced in [Adding Conditional Control to Text-to-Image Diffusion Models](https://huggingface.co/papers/2302.05543) by Lvmin Zhang, Anyi Rao, and Maneesh Agrawala. + +With a ControlNet model, you can provide an additional control image to condition and control Stable Diffusion generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +The abstract from the paper is: + +*We present ControlNet, a neural network architecture to add spatial conditioning controls to large, pretrained text-to-image diffusion models. ControlNet locks the production-ready large diffusion models, and reuses their deep and robust encoding layers pretrained with billions of images as a strong backbone to learn a diverse set of conditional controls. The neural architecture is connected with "zero convolutions" (zero-initialized convolution layers) that progressively grow the parameters from zero and ensure that no harmful noise could affect the finetuning. We test various conditioning controls, eg, edges, depth, segmentation, human pose, etc, with Stable Diffusion, using single or multiple conditions, with or without prompts. We show that the training of ControlNets is robust with small (<50k) and large (>1m) datasets. Extensive results show that ControlNet may facilitate wider applications to control image diffusion models.* + +You can find additional smaller Stable Diffusion XL (SDXL) ControlNet checkpoints from the 🤗 [Diffusers](https://huggingface.co/diffusers) Hub organization, and browse [community-trained](https://huggingface.co/models?other=stable-diffusion-xl&other=controlnet) checkpoints on the Hub. + +> [!WARNING] +> 🧪 Many of the SDXL ControlNet checkpoints are experimental, and there is a lot of room for improvement. Feel free to open an [Issue](https://github.com/huggingface/diffusers/issues/new/choose) and leave us feedback on how we can improve! + +If you don't see a checkpoint you're interested in, you can train your own SDXL ControlNet with our [training script](../../../../../examples/controlnet/README_sdxl). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## StableDiffusionXLControlNetPipeline +[[autodoc]] StableDiffusionXLControlNetPipeline + - all + - __call__ + +## StableDiffusionXLControlNetImg2ImgPipeline +[[autodoc]] StableDiffusionXLControlNetImg2ImgPipeline + - all + - __call__ + +## StableDiffusionXLControlNetInpaintPipeline +[[autodoc]] StableDiffusionXLControlNetInpaintPipeline + - all + - __call__ + +## StableDiffusionPipelineOutput +[[autodoc]] pipelines.stable_diffusion.StableDiffusionPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_union.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_union.md new file mode 100644 index 0000000000000000000000000000000000000000..47b44cc634fdcd782e1553d76b9677ff0a9f9716 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnet_union.md @@ -0,0 +1,39 @@ + + +# ControlNetUnion + +
+ LoRA +
+ +ControlNetUnionModel is an implementation of ControlNet for Stable Diffusion XL. + +The ControlNet model was introduced in [ControlNetPlus](https://github.com/xinsir6/ControlNetPlus) by xinsir6. It supports multiple conditioning inputs without increasing computation. + +*We design a new architecture that can support 10+ control types in condition text-to-image generation and can generate high resolution images visually comparable with midjourney. The network is based on the original ControlNet architecture, we propose two new modules to: 1 Extend the original ControlNet to support different image conditions using the same network parameter. 2 Support multiple conditions input without increasing computation offload, which is especially important for designers who want to edit image in detail, different conditions use the same condition encoder, without adding extra computations or parameters.* + + +## StableDiffusionXLControlNetUnionPipeline +[[autodoc]] StableDiffusionXLControlNetUnionPipeline + - all + - __call__ + +## StableDiffusionXLControlNetUnionImg2ImgPipeline +[[autodoc]] StableDiffusionXLControlNetUnionImg2ImgPipeline + - all + - __call__ + +## StableDiffusionXLControlNetUnionInpaintPipeline +[[autodoc]] StableDiffusionXLControlNetUnionInpaintPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnetxs.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnetxs.md new file mode 100644 index 0000000000000000000000000000000000000000..d44fb0cf0fdfd3a3cac31520161cf0e8abcbddff --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnetxs.md @@ -0,0 +1,43 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# ControlNet-XS + +
+ LoRA +
+ +ControlNet-XS was introduced in [ControlNet-XS](https://vislearn.github.io/ControlNet-XS/) by Denis Zavadski and Carsten Rother. It is based on the observation that the control model in the [original ControlNet](https://huggingface.co/papers/2302.05543) can be made much smaller and still produce good results. + +Like the original ControlNet model, you can provide an additional control image to condition and control Stable Diffusion generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +ControlNet-XS generates images with comparable quality to a regular ControlNet, but it is 20-25% faster ([see benchmark](https://github.com/UmerHA/controlnet-xs-benchmark/blob/main/Speed%20Benchmark.ipynb) with StableDiffusion-XL) and uses ~45% less memory. + +Here's the overview from the [project page](https://vislearn.github.io/ControlNet-XS/): + +*With increasing computing capabilities, current model architectures appear to follow the trend of simply upscaling all components without validating the necessity for doing so. In this project we investigate the size and architectural design of ControlNet [Zhang et al., 2023] for controlling the image generation process with stable diffusion-based models. We show that a new architecture with as little as 1% of the parameters of the base model achieves state-of-the art results, considerably better than ControlNet in terms of FID score. Hence we call it ControlNet-XS. We provide the code for controlling StableDiffusion-XL [Podell et al., 2023] (Model B, 48M Parameters) and StableDiffusion 2.1 [Rombach et al. 2022] (Model B, 14M Parameters), all under openrail license.* + +This model was contributed by [UmerHA](https://twitter.com/UmerHAdil). ❤️ + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## StableDiffusionControlNetXSPipeline +[[autodoc]] StableDiffusionControlNetXSPipeline + - all + - __call__ + +## StableDiffusionPipelineOutput +[[autodoc]] pipelines.stable_diffusion.StableDiffusionPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnetxs_sdxl.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnetxs_sdxl.md new file mode 100644 index 0000000000000000000000000000000000000000..7ae0e2a2a1781bc621f7f35a28817ebf0518d0e0 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/controlnetxs_sdxl.md @@ -0,0 +1,42 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# ControlNet-XS with Stable Diffusion XL + +ControlNet-XS was introduced in [ControlNet-XS](https://vislearn.github.io/ControlNet-XS/) by Denis Zavadski and Carsten Rother. It is based on the observation that the control model in the [original ControlNet](https://huggingface.co/papers/2302.05543) can be made much smaller and still produce good results. + +Like the original ControlNet model, you can provide an additional control image to condition and control Stable Diffusion generation. For example, if you provide a depth map, the ControlNet model generates an image that'll preserve the spatial information from the depth map. It is a more flexible and accurate way to control the image generation process. + +ControlNet-XS generates images with comparable quality to a regular ControlNet, but it is 20-25% faster ([see benchmark](https://github.com/UmerHA/controlnet-xs-benchmark/blob/main/Speed%20Benchmark.ipynb)) and uses ~45% less memory. + +Here's the overview from the [project page](https://vislearn.github.io/ControlNet-XS/): + +*With increasing computing capabilities, current model architectures appear to follow the trend of simply upscaling all components without validating the necessity for doing so. In this project we investigate the size and architectural design of ControlNet [Zhang et al., 2023] for controlling the image generation process with stable diffusion-based models. We show that a new architecture with as little as 1% of the parameters of the base model achieves state-of-the art results, considerably better than ControlNet in terms of FID score. Hence we call it ControlNet-XS. We provide the code for controlling StableDiffusion-XL [Podell et al., 2023] (Model B, 48M Parameters) and StableDiffusion 2.1 [Rombach et al. 2022] (Model B, 14M Parameters), all under openrail license.* + +This model was contributed by [UmerHA](https://twitter.com/UmerHAdil). ❤️ + +> [!WARNING] +> 🧪 Many of the SDXL ControlNet checkpoints are experimental, and there is a lot of room for improvement. Feel free to open an [Issue](https://github.com/huggingface/diffusers/issues/new/choose) and leave us feedback on how we can improve! + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## StableDiffusionXLControlNetXSPipeline +[[autodoc]] StableDiffusionXLControlNetXSPipeline + - all + - __call__ + +## StableDiffusionPipelineOutput +[[autodoc]] pipelines.stable_diffusion.StableDiffusionPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cosmos.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cosmos.md new file mode 100644 index 0000000000000000000000000000000000000000..fb9453480e74599a1a2c81c00eaf8a762bf95c3f --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/cosmos.md @@ -0,0 +1,79 @@ + + +# Cosmos + +[Cosmos World Foundation Model Platform for Physical AI](https://huggingface.co/papers/2501.03575) by NVIDIA. + +*Physical AI needs to be trained digitally first. It needs a digital twin of itself, the policy model, and a digital twin of the world, the world model. In this paper, we present the Cosmos World Foundation Model Platform to help developers build customized world models for their Physical AI setups. We position a world foundation model as a general-purpose world model that can be fine-tuned into customized world models for downstream applications. Our platform covers a video curation pipeline, pre-trained world foundation models, examples of post-training of pre-trained world foundation models, and video tokenizers. To help Physical AI builders solve the most critical problems of our society, we make our platform open-source and our models open-weight with permissive licenses available via https://github.com/NVIDIA/Cosmos.* + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## Loading original format checkpoints + +Original format checkpoints that have not been converted to diffusers-expected format can be loaded using the `from_single_file` method. + +```python +import torch +from diffusers import Cosmos2TextToImagePipeline, CosmosTransformer3DModel + +model_id = "nvidia/Cosmos-Predict2-2B-Text2Image" +transformer = CosmosTransformer3DModel.from_single_file( + "https://huggingface.co/nvidia/Cosmos-Predict2-2B-Text2Image/blob/main/model.pt", + torch_dtype=torch.bfloat16, +).to("cuda") +pipe = Cosmos2TextToImagePipeline.from_pretrained(model_id, transformer=transformer, torch_dtype=torch.bfloat16) +pipe.to("cuda") + +prompt = "A close-up shot captures a vibrant yellow scrubber vigorously working on a grimy plate, its bristles moving in circular motions to lift stubborn grease and food residue. The dish, once covered in remnants of a hearty meal, gradually reveals its original glossy surface. Suds form and bubble around the scrubber, creating a satisfying visual of cleanliness in progress. The sound of scrubbing fills the air, accompanied by the gentle clinking of the dish against the sink. As the scrubber continues its task, the dish transforms, gleaming under the bright kitchen lights, symbolizing the triumph of cleanliness over mess." +negative_prompt = "The video captures a series of frames showing ugly scenes, static with no motion, motion blur, over-saturation, shaky footage, low resolution, grainy texture, pixelated images, poorly lit areas, underexposed and overexposed scenes, poor color balance, washed out colors, choppy sequences, jerky movements, low frame rate, artifacting, color banding, unnatural transitions, outdated special effects, fake elements, unconvincing visuals, poorly edited content, jump cuts, visual noise, and flickering. Overall, the video is of poor quality." + +output = pipe( + prompt=prompt, negative_prompt=negative_prompt, generator=torch.Generator().manual_seed(1) +).images[0] +output.save("output.png") +``` + +## CosmosTextToWorldPipeline + +[[autodoc]] CosmosTextToWorldPipeline + - all + - __call__ + +## CosmosVideoToWorldPipeline + +[[autodoc]] CosmosVideoToWorldPipeline + - all + - __call__ + +## Cosmos2TextToImagePipeline + +[[autodoc]] Cosmos2TextToImagePipeline + - all + - __call__ + +## Cosmos2VideoToWorldPipeline + +[[autodoc]] Cosmos2VideoToWorldPipeline + - all + - __call__ + +## CosmosPipelineOutput + +[[autodoc]] pipelines.cosmos.pipeline_output.CosmosPipelineOutput + +## CosmosImagePipelineOutput + +[[autodoc]] pipelines.cosmos.pipeline_output.CosmosImagePipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/dance_diffusion.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/dance_diffusion.md new file mode 100644 index 0000000000000000000000000000000000000000..0434f6319592fb91670eaa3e07fb1ead89f1e714 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/dance_diffusion.md @@ -0,0 +1,32 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# Dance Diffusion + +[Dance Diffusion](https://github.com/Harmonai-org/sample-generator) is by Zach Evans. + +Dance Diffusion is the first in a suite of generative audio tools for producers and musicians released by [Harmonai](https://github.com/Harmonai-org). + + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## DanceDiffusionPipeline +[[autodoc]] DanceDiffusionPipeline + - all + - __call__ + +## AudioPipelineOutput +[[autodoc]] pipelines.AudioPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ddim.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ddim.md new file mode 100644 index 0000000000000000000000000000000000000000..3e8cbae4fb6057feb181034e4ef585a716e668b7 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ddim.md @@ -0,0 +1,29 @@ + + +# DDIM + +[Denoising Diffusion Implicit Models](https://huggingface.co/papers/2010.02502) (DDIM) by Jiaming Song, Chenlin Meng and Stefano Ermon. + +The abstract from the paper is: + +*Denoising diffusion probabilistic models (DDPMs) have achieved high quality image generation without adversarial training, yet they require simulating a Markov chain for many steps to produce a sample. To accelerate sampling, we present denoising diffusion implicit models (DDIMs), a more efficient class of iterative implicit probabilistic models with the same training procedure as DDPMs. In DDPMs, the generative process is defined as the reverse of a Markovian diffusion process. We construct a class of non-Markovian diffusion processes that lead to the same training objective, but whose reverse process can be much faster to sample from. We empirically demonstrate that DDIMs can produce high quality samples 10× to 50× faster in terms of wall-clock time compared to DDPMs, allow us to trade off computation for sample quality, and can perform semantically meaningful image interpolation directly in the latent space.* + +The original codebase can be found at [ermongroup/ddim](https://github.com/ermongroup/ddim). + +## DDIMPipeline +[[autodoc]] DDIMPipeline + - all + - __call__ + +## ImagePipelineOutput +[[autodoc]] pipelines.ImagePipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ddpm.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ddpm.md new file mode 100644 index 0000000000000000000000000000000000000000..63c2fcaf8923d31f13a4bdf4c47fc09478bc8fca --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ddpm.md @@ -0,0 +1,32 @@ + + +# DDPM + +[Denoising Diffusion Probabilistic Models](https://huggingface.co/papers/2006.11239) (DDPM) by Jonathan Ho, Ajay Jain and Pieter Abbeel proposes a diffusion based model of the same name. In the 🤗 Diffusers library, DDPM refers to the *discrete denoising scheduler* from the paper as well as the pipeline. + +The abstract from the paper is: + +*We present high quality image synthesis results using diffusion probabilistic models, a class of latent variable models inspired by considerations from nonequilibrium thermodynamics. Our best results are obtained by training on a weighted variational bound designed according to a novel connection between diffusion probabilistic models and denoising score matching with Langevin dynamics, and our models naturally admit a progressive lossy decompression scheme that can be interpreted as a generalization of autoregressive decoding. On the unconditional CIFAR10 dataset, we obtain an Inception score of 9.46 and a state-of-the-art FID score of 3.17. On 256x256 LSUN, we obtain sample quality similar to ProgressiveGAN.* + +The original codebase can be found at [hohonathanho/diffusion](https://github.com/hojonathanho/diffusion). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +# DDPMPipeline +[[autodoc]] DDPMPipeline + - all + - __call__ + +## ImagePipelineOutput +[[autodoc]] pipelines.ImagePipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/deepfloyd_if.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/deepfloyd_if.md new file mode 100644 index 0000000000000000000000000000000000000000..d631aac72eb360374d3c1a8b4a1fe05f4299e712 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/deepfloyd_if.md @@ -0,0 +1,511 @@ + + +# DeepFloyd IF + +
+ LoRA + MPS +
+ +## Overview + +DeepFloyd IF is a novel state-of-the-art open-source text-to-image model with a high degree of photorealism and language understanding. +The model is a modular composed of a frozen text encoder and three cascaded pixel diffusion modules: +- Stage 1: a base model that generates 64x64 px image based on text prompt, +- Stage 2: a 64x64 px => 256x256 px super-resolution model, and +- Stage 3: a 256x256 px => 1024x1024 px super-resolution model +Stage 1 and Stage 2 utilize a frozen text encoder based on the T5 transformer to extract text embeddings, which are then fed into a UNet architecture enhanced with cross-attention and attention pooling. +Stage 3 is [Stability AI's x4 Upscaling model](https://huggingface.co/stabilityai/stable-diffusion-x4-upscaler). +The result is a highly efficient model that outperforms current state-of-the-art models, achieving a zero-shot FID score of 6.66 on the COCO dataset. +Our work underscores the potential of larger UNet architectures in the first stage of cascaded diffusion models and depicts a promising future for text-to-image synthesis. + +## Usage + +Before you can use IF, you need to accept its usage conditions. To do so: +1. Make sure to have a [Hugging Face account](https://huggingface.co/join) and be logged in. +2. Accept the license on the model card of [DeepFloyd/IF-I-XL-v1.0](https://huggingface.co/DeepFloyd/IF-I-XL-v1.0). Accepting the license on the stage I model card will auto accept for the other IF models. +3. Make sure to login locally. Install `huggingface_hub`: +```sh +pip install huggingface_hub --upgrade +``` + +run the login function in a Python shell: + +```py +from huggingface_hub import login + +login() +``` + +and enter your [Hugging Face Hub access token](https://huggingface.co/docs/hub/security-tokens#what-are-user-access-tokens). + +Next we install `diffusers` and dependencies: + +```sh +pip install -q diffusers accelerate transformers +``` + +The following sections give more in-detail examples of how to use IF. Specifically: + +- [Text-to-Image Generation](#text-to-image-generation) +- [Image-to-Image Generation](#text-guided-image-to-image-generation) +- [Inpainting](#text-guided-inpainting-generation) +- [Reusing model weights](#converting-between-different-pipelines) +- [Speed optimization](#optimizing-for-speed) +- [Memory optimization](#optimizing-for-memory) + +**Available checkpoints** +- *Stage-1* + - [DeepFloyd/IF-I-XL-v1.0](https://huggingface.co/DeepFloyd/IF-I-XL-v1.0) + - [DeepFloyd/IF-I-L-v1.0](https://huggingface.co/DeepFloyd/IF-I-L-v1.0) + - [DeepFloyd/IF-I-M-v1.0](https://huggingface.co/DeepFloyd/IF-I-M-v1.0) + +- *Stage-2* + - [DeepFloyd/IF-II-L-v1.0](https://huggingface.co/DeepFloyd/IF-II-L-v1.0) + - [DeepFloyd/IF-II-M-v1.0](https://huggingface.co/DeepFloyd/IF-II-M-v1.0) + +- *Stage-3* + - [stabilityai/stable-diffusion-x4-upscaler](https://huggingface.co/stabilityai/stable-diffusion-x4-upscaler) + + +**Google Colab** +[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/huggingface/notebooks/blob/main/diffusers/deepfloyd_if_free_tier_google_colab.ipynb) + +### Text-to-Image Generation + +By default diffusers makes use of [model cpu offloading](../../optimization/memory#model-offloading) to run the whole IF pipeline with as little as 14 GB of VRAM. + +```python +from diffusers import DiffusionPipeline +from diffusers.utils import pt_to_pil, make_image_grid +import torch + +# stage 1 +stage_1 = DiffusionPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0", variant="fp16", torch_dtype=torch.float16) +stage_1.enable_model_cpu_offload() + +# stage 2 +stage_2 = DiffusionPipeline.from_pretrained( + "DeepFloyd/IF-II-L-v1.0", text_encoder=None, variant="fp16", torch_dtype=torch.float16 +) +stage_2.enable_model_cpu_offload() + +# stage 3 +safety_modules = { + "feature_extractor": stage_1.feature_extractor, + "safety_checker": stage_1.safety_checker, + "watermarker": stage_1.watermarker, +} +stage_3 = DiffusionPipeline.from_pretrained( + "stabilityai/stable-diffusion-x4-upscaler", **safety_modules, torch_dtype=torch.float16 +) +stage_3.enable_model_cpu_offload() + +prompt = 'a photo of a kangaroo wearing an orange hoodie and blue sunglasses standing in front of the eiffel tower holding a sign that says "very deep learning"' +generator = torch.manual_seed(1) + +# text embeds +prompt_embeds, negative_embeds = stage_1.encode_prompt(prompt) + +# stage 1 +stage_1_output = stage_1( + prompt_embeds=prompt_embeds, negative_prompt_embeds=negative_embeds, generator=generator, output_type="pt" +).images +#pt_to_pil(stage_1_output)[0].save("./if_stage_I.png") + +# stage 2 +stage_2_output = stage_2( + image=stage_1_output, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_embeds, + generator=generator, + output_type="pt", +).images +#pt_to_pil(stage_2_output)[0].save("./if_stage_II.png") + +# stage 3 +stage_3_output = stage_3(prompt=prompt, image=stage_2_output, noise_level=100, generator=generator).images +#stage_3_output[0].save("./if_stage_III.png") +make_image_grid([pt_to_pil(stage_1_output)[0], pt_to_pil(stage_2_output)[0], stage_3_output[0]], rows=1, rows=3) +``` + +### Text Guided Image-to-Image Generation + +The same IF model weights can be used for text-guided image-to-image translation or image variation. +In this case just make sure to load the weights using the [`IFImg2ImgPipeline`] and [`IFImg2ImgSuperResolutionPipeline`] pipelines. + +**Note**: You can also directly move the weights of the text-to-image pipelines to the image-to-image pipelines +without loading them twice by making use of the [`~DiffusionPipeline.components`] argument as explained [here](#converting-between-different-pipelines). + +```python +from diffusers import IFImg2ImgPipeline, IFImg2ImgSuperResolutionPipeline, DiffusionPipeline +from diffusers.utils import pt_to_pil, load_image, make_image_grid +import torch + +# download image +url = "https://raw.githubusercontent.com/CompVis/stable-diffusion/main/assets/stable-samples/img2img/sketch-mountains-input.jpg" +original_image = load_image(url) +original_image = original_image.resize((768, 512)) + +# stage 1 +stage_1 = IFImg2ImgPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0", variant="fp16", torch_dtype=torch.float16) +stage_1.enable_model_cpu_offload() + +# stage 2 +stage_2 = IFImg2ImgSuperResolutionPipeline.from_pretrained( + "DeepFloyd/IF-II-L-v1.0", text_encoder=None, variant="fp16", torch_dtype=torch.float16 +) +stage_2.enable_model_cpu_offload() + +# stage 3 +safety_modules = { + "feature_extractor": stage_1.feature_extractor, + "safety_checker": stage_1.safety_checker, + "watermarker": stage_1.watermarker, +} +stage_3 = DiffusionPipeline.from_pretrained( + "stabilityai/stable-diffusion-x4-upscaler", **safety_modules, torch_dtype=torch.float16 +) +stage_3.enable_model_cpu_offload() + +prompt = "A fantasy landscape in style minecraft" +generator = torch.manual_seed(1) + +# text embeds +prompt_embeds, negative_embeds = stage_1.encode_prompt(prompt) + +# stage 1 +stage_1_output = stage_1( + image=original_image, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_embeds, + generator=generator, + output_type="pt", +).images +#pt_to_pil(stage_1_output)[0].save("./if_stage_I.png") + +# stage 2 +stage_2_output = stage_2( + image=stage_1_output, + original_image=original_image, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_embeds, + generator=generator, + output_type="pt", +).images +#pt_to_pil(stage_2_output)[0].save("./if_stage_II.png") + +# stage 3 +stage_3_output = stage_3(prompt=prompt, image=stage_2_output, generator=generator, noise_level=100).images +#stage_3_output[0].save("./if_stage_III.png") +make_image_grid([original_image, pt_to_pil(stage_1_output)[0], pt_to_pil(stage_2_output)[0], stage_3_output[0]], rows=1, rows=4) +``` + +### Text Guided Inpainting Generation + +The same IF model weights can be used for text-guided image-to-image translation or image variation. +In this case just make sure to load the weights using the [`IFInpaintingPipeline`] and [`IFInpaintingSuperResolutionPipeline`] pipelines. + +**Note**: You can also directly move the weights of the text-to-image pipelines to the image-to-image pipelines +without loading them twice by making use of the [`~DiffusionPipeline.components()`] function as explained [here](#converting-between-different-pipelines). + +```python +from diffusers import IFInpaintingPipeline, IFInpaintingSuperResolutionPipeline, DiffusionPipeline +from diffusers.utils import pt_to_pil, load_image, make_image_grid +import torch + +# download image +url = "https://huggingface.co/datasets/diffusers/docs-images/resolve/main/if/person.png" +original_image = load_image(url) + +# download mask +url = "https://huggingface.co/datasets/diffusers/docs-images/resolve/main/if/glasses_mask.png" +mask_image = load_image(url) + +# stage 1 +stage_1 = IFInpaintingPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0", variant="fp16", torch_dtype=torch.float16) +stage_1.enable_model_cpu_offload() + +# stage 2 +stage_2 = IFInpaintingSuperResolutionPipeline.from_pretrained( + "DeepFloyd/IF-II-L-v1.0", text_encoder=None, variant="fp16", torch_dtype=torch.float16 +) +stage_2.enable_model_cpu_offload() + +# stage 3 +safety_modules = { + "feature_extractor": stage_1.feature_extractor, + "safety_checker": stage_1.safety_checker, + "watermarker": stage_1.watermarker, +} +stage_3 = DiffusionPipeline.from_pretrained( + "stabilityai/stable-diffusion-x4-upscaler", **safety_modules, torch_dtype=torch.float16 +) +stage_3.enable_model_cpu_offload() + +prompt = "blue sunglasses" +generator = torch.manual_seed(1) + +# text embeds +prompt_embeds, negative_embeds = stage_1.encode_prompt(prompt) + +# stage 1 +stage_1_output = stage_1( + image=original_image, + mask_image=mask_image, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_embeds, + generator=generator, + output_type="pt", +).images +#pt_to_pil(stage_1_output)[0].save("./if_stage_I.png") + +# stage 2 +stage_2_output = stage_2( + image=stage_1_output, + original_image=original_image, + mask_image=mask_image, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_embeds, + generator=generator, + output_type="pt", +).images +#pt_to_pil(stage_1_output)[0].save("./if_stage_II.png") + +# stage 3 +stage_3_output = stage_3(prompt=prompt, image=stage_2_output, generator=generator, noise_level=100).images +#stage_3_output[0].save("./if_stage_III.png") +make_image_grid([original_image, mask_image, pt_to_pil(stage_1_output)[0], pt_to_pil(stage_2_output)[0], stage_3_output[0]], rows=1, rows=5) +``` + +### Converting between different pipelines + +In addition to being loaded with `from_pretrained`, Pipelines can also be loaded directly from each other. + +```python +from diffusers import IFPipeline, IFSuperResolutionPipeline + +pipe_1 = IFPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0") +pipe_2 = IFSuperResolutionPipeline.from_pretrained("DeepFloyd/IF-II-L-v1.0") + + +from diffusers import IFImg2ImgPipeline, IFImg2ImgSuperResolutionPipeline + +pipe_1 = IFImg2ImgPipeline(**pipe_1.components) +pipe_2 = IFImg2ImgSuperResolutionPipeline(**pipe_2.components) + + +from diffusers import IFInpaintingPipeline, IFInpaintingSuperResolutionPipeline + +pipe_1 = IFInpaintingPipeline(**pipe_1.components) +pipe_2 = IFInpaintingSuperResolutionPipeline(**pipe_2.components) +``` + +### Optimizing for speed + +The simplest optimization to run IF faster is to move all model components to the GPU. + +```py +pipe = DiffusionPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0", variant="fp16", torch_dtype=torch.float16) +pipe.to("cuda") +``` + +You can also run the diffusion process for a shorter number of timesteps. + +This can either be done with the `num_inference_steps` argument: + +```py +pipe("", num_inference_steps=30) +``` + +Or with the `timesteps` argument: + +```py +from diffusers.pipelines.deepfloyd_if import fast27_timesteps + +pipe("", timesteps=fast27_timesteps) +``` + +When doing image variation or inpainting, you can also decrease the number of timesteps +with the strength argument. The strength argument is the amount of noise to add to the input image which also determines how many steps to run in the denoising process. +A smaller number will vary the image less but run faster. + +```py +pipe = IFImg2ImgPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0", variant="fp16", torch_dtype=torch.float16) +pipe.to("cuda") + +image = pipe(image=image, prompt="", strength=0.3).images +``` + +You can also use [`torch.compile`](../../optimization/fp16#torchcompile). Note that we have not exhaustively tested `torch.compile` +with IF and it might not give expected results. + +```py +from diffusers import DiffusionPipeline +import torch + +pipe = DiffusionPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0", variant="fp16", torch_dtype=torch.float16) +pipe.to("cuda") + +pipe.text_encoder = torch.compile(pipe.text_encoder, mode="reduce-overhead", fullgraph=True) +pipe.unet = torch.compile(pipe.unet, mode="reduce-overhead", fullgraph=True) +``` + +### Optimizing for memory + +When optimizing for GPU memory, we can use the standard diffusers CPU offloading APIs. + +Either the model based CPU offloading, + +```py +pipe = DiffusionPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0", variant="fp16", torch_dtype=torch.float16) +pipe.enable_model_cpu_offload() +``` + +or the more aggressive layer based CPU offloading. + +```py +pipe = DiffusionPipeline.from_pretrained("DeepFloyd/IF-I-XL-v1.0", variant="fp16", torch_dtype=torch.float16) +pipe.enable_sequential_cpu_offload() +``` + +Additionally, T5 can be loaded in 8bit precision + +```py +from transformers import T5EncoderModel + +text_encoder = T5EncoderModel.from_pretrained( + "DeepFloyd/IF-I-XL-v1.0", subfolder="text_encoder", device_map="auto", load_in_8bit=True, variant="8bit" +) + +from diffusers import DiffusionPipeline + +pipe = DiffusionPipeline.from_pretrained( + "DeepFloyd/IF-I-XL-v1.0", + text_encoder=text_encoder, # pass the previously instantiated 8bit text encoder + unet=None, + device_map="auto", +) + +prompt_embeds, negative_embeds = pipe.encode_prompt("") +``` + +For CPU RAM constrained machines like Google Colab free tier where we can't load all model components to the CPU at once, we can manually only load the pipeline with +the text encoder or UNet when the respective model components are needed. + +```py +from diffusers import IFPipeline, IFSuperResolutionPipeline +import torch +import gc +from transformers import T5EncoderModel +from diffusers.utils import pt_to_pil, make_image_grid + +text_encoder = T5EncoderModel.from_pretrained( + "DeepFloyd/IF-I-XL-v1.0", subfolder="text_encoder", device_map="auto", load_in_8bit=True, variant="8bit" +) + +# text to image +pipe = DiffusionPipeline.from_pretrained( + "DeepFloyd/IF-I-XL-v1.0", + text_encoder=text_encoder, # pass the previously instantiated 8bit text encoder + unet=None, + device_map="auto", +) + +prompt = 'a photo of a kangaroo wearing an orange hoodie and blue sunglasses standing in front of the eiffel tower holding a sign that says "very deep learning"' +prompt_embeds, negative_embeds = pipe.encode_prompt(prompt) + +# Remove the pipeline so we can re-load the pipeline with the unet +del text_encoder +del pipe +gc.collect() +torch.cuda.empty_cache() + +pipe = IFPipeline.from_pretrained( + "DeepFloyd/IF-I-XL-v1.0", text_encoder=None, variant="fp16", torch_dtype=torch.float16, device_map="auto" +) + +generator = torch.Generator().manual_seed(0) +stage_1_output = pipe( + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_embeds, + output_type="pt", + generator=generator, +).images + +#pt_to_pil(stage_1_output)[0].save("./if_stage_I.png") + +# Remove the pipeline so we can load the super-resolution pipeline +del pipe +gc.collect() +torch.cuda.empty_cache() + +# First super resolution + +pipe = IFSuperResolutionPipeline.from_pretrained( + "DeepFloyd/IF-II-L-v1.0", text_encoder=None, variant="fp16", torch_dtype=torch.float16, device_map="auto" +) + +generator = torch.Generator().manual_seed(0) +stage_2_output = pipe( + image=stage_1_output, + prompt_embeds=prompt_embeds, + negative_prompt_embeds=negative_embeds, + output_type="pt", + generator=generator, +).images + +#pt_to_pil(stage_2_output)[0].save("./if_stage_II.png") +make_image_grid([pt_to_pil(stage_1_output)[0], pt_to_pil(stage_2_output)[0]], rows=1, rows=2) +``` + +## Available Pipelines: + +| Pipeline | Tasks | Colab +|---|---|:---:| +| [pipeline_if.py](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/deepfloyd_if/pipeline_if.py) | *Text-to-Image Generation* | - | +| [pipeline_if_superresolution.py](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/deepfloyd_if/pipeline_if_superresolution.py) | *Text-to-Image Generation* | - | +| [pipeline_if_img2img.py](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/deepfloyd_if/pipeline_if_img2img.py) | *Image-to-Image Generation* | - | +| [pipeline_if_img2img_superresolution.py](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/deepfloyd_if/pipeline_if_img2img_superresolution.py) | *Image-to-Image Generation* | - | +| [pipeline_if_inpainting.py](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/deepfloyd_if/pipeline_if_inpainting.py) | *Image-to-Image Generation* | - | +| [pipeline_if_inpainting_superresolution.py](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/deepfloyd_if/pipeline_if_inpainting_superresolution.py) | *Image-to-Image Generation* | - | + +## IFPipeline +[[autodoc]] IFPipeline + - all + - __call__ + +## IFSuperResolutionPipeline +[[autodoc]] IFSuperResolutionPipeline + - all + - __call__ + +## IFImg2ImgPipeline +[[autodoc]] IFImg2ImgPipeline + - all + - __call__ + +## IFImg2ImgSuperResolutionPipeline +[[autodoc]] IFImg2ImgSuperResolutionPipeline + - all + - __call__ + +## IFInpaintingPipeline +[[autodoc]] IFInpaintingPipeline + - all + - __call__ + +## IFInpaintingSuperResolutionPipeline +[[autodoc]] IFInpaintingSuperResolutionPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/diffedit.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/diffedit.md new file mode 100644 index 0000000000000000000000000000000000000000..9734ca2eabc3a155b8bf8d3ee02ac1ff6207992d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/diffedit.md @@ -0,0 +1,58 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# DiffEdit + +[DiffEdit: Diffusion-based semantic image editing with mask guidance](https://huggingface.co/papers/2210.11427) is by Guillaume Couairon, Jakob Verbeek, Holger Schwenk, and Matthieu Cord. + +The abstract from the paper is: + +*Image generation has recently seen tremendous advances, with diffusion models allowing to synthesize convincing images for a large variety of text prompts. In this article, we propose DiffEdit, a method to take advantage of text-conditioned diffusion models for the task of semantic image editing, where the goal is to edit an image based on a text query. Semantic image editing is an extension of image generation, with the additional constraint that the generated image should be as similar as possible to a given input image. Current editing methods based on diffusion models usually require to provide a mask, making the task much easier by treating it as a conditional inpainting task. In contrast, our main contribution is able to automatically generate a mask highlighting regions of the input image that need to be edited, by contrasting predictions of a diffusion model conditioned on different text prompts. Moreover, we rely on latent inference to preserve content in those regions of interest and show excellent synergies with mask-based diffusion. DiffEdit achieves state-of-the-art editing performance on ImageNet. In addition, we evaluate semantic image editing in more challenging settings, using images from the COCO dataset as well as text-based generated images.* + +The original codebase can be found at [Xiang-cd/DiffEdit-stable-diffusion](https://github.com/Xiang-cd/DiffEdit-stable-diffusion), and you can try it out in this [demo](https://blog.problemsolversguild.com/technical/research/2022/11/02/DiffEdit-Implementation.html). + +This pipeline was contributed by [clarencechen](https://github.com/clarencechen). ❤️ + +## Tips + +* The pipeline can generate masks that can be fed into other inpainting pipelines. +* In order to generate an image using this pipeline, both an image mask (source and target prompts can be manually specified or generated, and passed to [`~StableDiffusionDiffEditPipeline.generate_mask`]) +and a set of partially inverted latents (generated using [`~StableDiffusionDiffEditPipeline.invert`]) _must_ be provided as arguments when calling the pipeline to generate the final edited image. +* The function [`~StableDiffusionDiffEditPipeline.generate_mask`] exposes two prompt arguments, `source_prompt` and `target_prompt` +that let you control the locations of the semantic edits in the final image to be generated. Let's say, +you wanted to translate from "cat" to "dog". In this case, the edit direction will be "cat -> dog". To reflect +this in the generated mask, you simply have to set the embeddings related to the phrases including "cat" to +`source_prompt` and "dog" to `target_prompt`. +* When generating partially inverted latents using `invert`, assign a caption or text embedding describing the +overall image to the `prompt` argument to help guide the inverse latent sampling process. In most cases, the +source concept is sufficiently descriptive to yield good results, but feel free to explore alternatives. +* When calling the pipeline to generate the final edited image, assign the source concept to `negative_prompt` +and the target concept to `prompt`. Taking the above example, you simply have to set the embeddings related to +the phrases including "cat" to `negative_prompt` and "dog" to `prompt`. +* If you wanted to reverse the direction in the example above, i.e., "dog -> cat", then it's recommended to: + * Swap the `source_prompt` and `target_prompt` in the arguments to `generate_mask`. + * Change the input prompt in [`~StableDiffusionDiffEditPipeline.invert`] to include "dog". + * Swap the `prompt` and `negative_prompt` in the arguments to call the pipeline to generate the final edited image. +* The source and target prompts, or their corresponding embeddings, can also be automatically generated. Please refer to the [DiffEdit](../../using-diffusers/diffedit) guide for more details. + +## StableDiffusionDiffEditPipeline +[[autodoc]] StableDiffusionDiffEditPipeline + - all + - generate_mask + - invert + - __call__ + +## StableDiffusionPipelineOutput +[[autodoc]] pipelines.stable_diffusion.StableDiffusionPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/dit.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/dit.md new file mode 100644 index 0000000000000000000000000000000000000000..16d0c999619d62b8b5ae9162096b2a6e72901485 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/dit.md @@ -0,0 +1,32 @@ + + +# DiT + +[Scalable Diffusion Models with Transformers](https://huggingface.co/papers/2212.09748) (DiT) is by William Peebles and Saining Xie. + +The abstract from the paper is: + +*We explore a new class of diffusion models based on the transformer architecture. We train latent diffusion models of images, replacing the commonly-used U-Net backbone with a transformer that operates on latent patches. We analyze the scalability of our Diffusion Transformers (DiTs) through the lens of forward pass complexity as measured by Gflops. We find that DiTs with higher Gflops -- through increased transformer depth/width or increased number of input tokens -- consistently have lower FID. In addition to possessing good scalability properties, our largest DiT-XL/2 models outperform all prior diffusion models on the class-conditional ImageNet 512x512 and 256x256 benchmarks, achieving a state-of-the-art FID of 2.27 on the latter.* + +The original codebase can be found at [facebookresearch/dit](https://github.com/facebookresearch/dit). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## DiTPipeline +[[autodoc]] DiTPipeline + - all + - __call__ + +## ImagePipelineOutput +[[autodoc]] pipelines.ImagePipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/easyanimate.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/easyanimate.md new file mode 100644 index 0000000000000000000000000000000000000000..15d44a12b1b6d5e2d886bcda188d06d8f44dfbfe --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/easyanimate.md @@ -0,0 +1,88 @@ + + +# EasyAnimate +[EasyAnimate](https://github.com/aigc-apps/EasyAnimate) by Alibaba PAI. + +The description from it's GitHub page: +*EasyAnimate is a pipeline based on the transformer architecture, designed for generating AI images and videos, and for training baseline models and Lora models for Diffusion Transformer. We support direct prediction from pre-trained EasyAnimate models, allowing for the generation of videos with various resolutions, approximately 6 seconds in length, at 8fps (EasyAnimateV5.1, 1 to 49 frames). Additionally, users can train their own baseline and Lora models for specific style transformations.* + +This pipeline was contributed by [bubbliiiing](https://github.com/bubbliiiing). The original codebase can be found [here](https://huggingface.co/alibaba-pai). The original weights can be found under [hf.co/alibaba-pai](https://huggingface.co/alibaba-pai). + +There are two official EasyAnimate checkpoints for text-to-video and video-to-video. + +| checkpoints | recommended inference dtype | +|:---:|:---:| +| [`alibaba-pai/EasyAnimateV5.1-12b-zh`](https://huggingface.co/alibaba-pai/EasyAnimateV5.1-12b-zh) | torch.float16 | +| [`alibaba-pai/EasyAnimateV5.1-12b-zh-InP`](https://huggingface.co/alibaba-pai/EasyAnimateV5.1-12b-zh-InP) | torch.float16 | + +There is one official EasyAnimate checkpoints available for image-to-video and video-to-video. + +| checkpoints | recommended inference dtype | +|:---:|:---:| +| [`alibaba-pai/EasyAnimateV5.1-12b-zh-InP`](https://huggingface.co/alibaba-pai/EasyAnimateV5.1-12b-zh-InP) | torch.float16 | + +There are two official EasyAnimate checkpoints available for control-to-video. + +| checkpoints | recommended inference dtype | +|:---:|:---:| +| [`alibaba-pai/EasyAnimateV5.1-12b-zh-Control`](https://huggingface.co/alibaba-pai/EasyAnimateV5.1-12b-zh-Control) | torch.float16 | +| [`alibaba-pai/EasyAnimateV5.1-12b-zh-Control-Camera`](https://huggingface.co/alibaba-pai/EasyAnimateV5.1-12b-zh-Control-Camera) | torch.float16 | + +For the EasyAnimateV5.1 series: +- Text-to-video (T2V) and Image-to-video (I2V) works for multiple resolutions. The width and height can vary from 256 to 1024. +- Both T2V and I2V models support generation with 1~49 frames and work best at this value. Exporting videos at 8 FPS is recommended. + +## Quantization + +Quantization helps reduce the memory requirements of very large models by storing model weights in a lower precision data type. However, quantization may have varying impact on video quality depending on the video model. + +Refer to the [Quantization](../../quantization/overview) overview to learn more about supported quantization backends and selecting a quantization backend that supports your use case. The example below demonstrates how to load a quantized [`EasyAnimatePipeline`] for inference with bitsandbytes. + +```py +import torch +from diffusers import BitsAndBytesConfig as DiffusersBitsAndBytesConfig, EasyAnimateTransformer3DModel, EasyAnimatePipeline +from diffusers.utils import export_to_video + +quant_config = DiffusersBitsAndBytesConfig(load_in_8bit=True) +transformer_8bit = EasyAnimateTransformer3DModel.from_pretrained( + "alibaba-pai/EasyAnimateV5.1-12b-zh", + subfolder="transformer", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +pipeline = EasyAnimatePipeline.from_pretrained( + "alibaba-pai/EasyAnimateV5.1-12b-zh", + transformer=transformer_8bit, + torch_dtype=torch.float16, + device_map="balanced", +) + +prompt = "A cat walks on the grass, realistic style." +negative_prompt = "bad detailed" +video = pipeline(prompt=prompt, negative_prompt=negative_prompt, num_frames=49, num_inference_steps=30).frames[0] +export_to_video(video, "cat.mp4", fps=8) +``` + +## EasyAnimatePipeline + +[[autodoc]] EasyAnimatePipeline + - all + - __call__ + +## EasyAnimatePipelineOutput + +[[autodoc]] pipelines.easyanimate.pipeline_output.EasyAnimatePipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/flux.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/flux.md new file mode 100644 index 0000000000000000000000000000000000000000..358b8139c73a6ce6d98d4aeb2413aba19ca6be6e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/flux.md @@ -0,0 +1,714 @@ + + +# Flux + +
+ LoRA + MPS +
+ +Flux is a series of text-to-image generation models based on diffusion transformers. To know more about Flux, check out the original [blog post](https://blackforestlabs.ai/announcing-black-forest-labs/) by the creators of Flux, Black Forest Labs. + +Original model checkpoints for Flux can be found [here](https://huggingface.co/black-forest-labs). Original inference code can be found [here](https://github.com/black-forest-labs/flux). + +> [!TIP] +> Flux can be quite expensive to run on consumer hardware devices. However, you can perform a suite of optimizations to run it faster and in a more memory-friendly manner. Check out [this section](https://huggingface.co/blog/sd3#memory-optimizations-for-sd3) for more details. Additionally, Flux can benefit from quantization for memory efficiency with a trade-off in inference latency. Refer to [this blog post](https://huggingface.co/blog/quanto-diffusers) to learn more. For an exhaustive list of resources, check out [this gist](https://gist.github.com/sayakpaul/b664605caf0aa3bf8585ab109dd5ac9c). +> +> [Caching](../../optimization/cache) may also speed up inference by storing and reusing intermediate outputs. + +Flux comes in the following variants: + +| model type | model id | +|:----------:|:--------:| +| Timestep-distilled | [`black-forest-labs/FLUX.1-schnell`](https://huggingface.co/black-forest-labs/FLUX.1-schnell) | +| Guidance-distilled | [`black-forest-labs/FLUX.1-dev`](https://huggingface.co/black-forest-labs/FLUX.1-dev) | +| Fill Inpainting/Outpainting (Guidance-distilled) | [`black-forest-labs/FLUX.1-Fill-dev`](https://huggingface.co/black-forest-labs/FLUX.1-Fill-dev) | +| Canny Control (Guidance-distilled) | [`black-forest-labs/FLUX.1-Canny-dev`](https://huggingface.co/black-forest-labs/FLUX.1-Canny-dev) | +| Depth Control (Guidance-distilled) | [`black-forest-labs/FLUX.1-Depth-dev`](https://huggingface.co/black-forest-labs/FLUX.1-Depth-dev) | +| Canny Control (LoRA) | [`black-forest-labs/FLUX.1-Canny-dev-lora`](https://huggingface.co/black-forest-labs/FLUX.1-Canny-dev-lora) | +| Depth Control (LoRA) | [`black-forest-labs/FLUX.1-Depth-dev-lora`](https://huggingface.co/black-forest-labs/FLUX.1-Depth-dev-lora) | +| Redux (Adapter) | [`black-forest-labs/FLUX.1-Redux-dev`](https://huggingface.co/black-forest-labs/FLUX.1-Redux-dev) | +| Kontext | [`black-forest-labs/FLUX.1-kontext`](https://huggingface.co/black-forest-labs/FLUX.1-Kontext-dev) | + +All checkpoints have different usage which we detail below. + +### Timestep-distilled + +* `max_sequence_length` cannot be more than 256. +* `guidance_scale` needs to be 0. +* As this is a timestep-distilled model, it benefits from fewer sampling steps. + +```python +import torch +from diffusers import FluxPipeline + +pipe = FluxPipeline.from_pretrained("black-forest-labs/FLUX.1-schnell", torch_dtype=torch.bfloat16) +pipe.enable_model_cpu_offload() + +prompt = "A cat holding a sign that says hello world" +out = pipe( + prompt=prompt, + guidance_scale=0., + height=768, + width=1360, + num_inference_steps=4, + max_sequence_length=256, +).images[0] +out.save("image.png") +``` + +### Guidance-distilled + +* The guidance-distilled variant takes about 50 sampling steps for good-quality generation. +* It doesn't have any limitations around the `max_sequence_length`. + +```python +import torch +from diffusers import FluxPipeline + +pipe = FluxPipeline.from_pretrained("black-forest-labs/FLUX.1-dev", torch_dtype=torch.bfloat16) +pipe.enable_model_cpu_offload() + +prompt = "a tiny astronaut hatching from an egg on the moon" +out = pipe( + prompt=prompt, + guidance_scale=3.5, + height=768, + width=1360, + num_inference_steps=50, +).images[0] +out.save("image.png") +``` + +### Fill Inpainting/Outpainting + +* Flux Fill pipeline does not require `strength` as an input like regular inpainting pipelines. +* It supports both inpainting and outpainting. + +```python +import torch +from diffusers import FluxFillPipeline +from diffusers.utils import load_image + +image = load_image("https://huggingface.co/datasets/YiYiXu/testing-images/resolve/main/cup.png") +mask = load_image("https://huggingface.co/datasets/YiYiXu/testing-images/resolve/main/cup_mask.png") + +repo_id = "black-forest-labs/FLUX.1-Fill-dev" +pipe = FluxFillPipeline.from_pretrained(repo_id, torch_dtype=torch.bfloat16).to("cuda") + +image = pipe( + prompt="a white paper cup", + image=image, + mask_image=mask, + height=1632, + width=1232, + max_sequence_length=512, + generator=torch.Generator("cpu").manual_seed(0) +).images[0] +image.save(f"output.png") +``` + +### Canny Control + +**Note:** `black-forest-labs/Flux.1-Canny-dev` is _not_ a [`ControlNetModel`] model. ControlNet models are a separate component from the UNet/Transformer whose residuals are added to the actual underlying model. Canny Control is an alternate architecture that achieves effectively the same results as a ControlNet model would, by using channel-wise concatenation with input control condition and ensuring the transformer learns structure control by following the condition as closely as possible. + +```python +# !pip install -U controlnet-aux +import torch +from controlnet_aux import CannyDetector +from diffusers import FluxControlPipeline +from diffusers.utils import load_image + +pipe = FluxControlPipeline.from_pretrained("black-forest-labs/FLUX.1-Canny-dev", torch_dtype=torch.bfloat16).to("cuda") + +prompt = "A robot made of exotic candies and chocolates of different kinds. The background is filled with confetti and celebratory gifts." +control_image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/robot.png") + +processor = CannyDetector() +control_image = processor(control_image, low_threshold=50, high_threshold=200, detect_resolution=1024, image_resolution=1024) + +image = pipe( + prompt=prompt, + control_image=control_image, + height=1024, + width=1024, + num_inference_steps=50, + guidance_scale=30.0, +).images[0] +image.save("output.png") +``` + +Canny Control is also possible with a LoRA variant of this condition. The usage is as follows: + +```python +# !pip install -U controlnet-aux +import torch +from controlnet_aux import CannyDetector +from diffusers import FluxControlPipeline +from diffusers.utils import load_image + +pipe = FluxControlPipeline.from_pretrained("black-forest-labs/FLUX.1-dev", torch_dtype=torch.bfloat16).to("cuda") +pipe.load_lora_weights("black-forest-labs/FLUX.1-Canny-dev-lora") + +prompt = "A robot made of exotic candies and chocolates of different kinds. The background is filled with confetti and celebratory gifts." +control_image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/robot.png") + +processor = CannyDetector() +control_image = processor(control_image, low_threshold=50, high_threshold=200, detect_resolution=1024, image_resolution=1024) + +image = pipe( + prompt=prompt, + control_image=control_image, + height=1024, + width=1024, + num_inference_steps=50, + guidance_scale=30.0, +).images[0] +image.save("output.png") +``` + +### Depth Control + +**Note:** `black-forest-labs/Flux.1-Depth-dev` is _not_ a ControlNet model. [`ControlNetModel`] models are a separate component from the UNet/Transformer whose residuals are added to the actual underlying model. Depth Control is an alternate architecture that achieves effectively the same results as a ControlNet model would, by using channel-wise concatenation with input control condition and ensuring the transformer learns structure control by following the condition as closely as possible. + +```python +# !pip install git+https://github.com/huggingface/image_gen_aux +import torch +from diffusers import FluxControlPipeline, FluxTransformer2DModel +from diffusers.utils import load_image +from image_gen_aux import DepthPreprocessor + +pipe = FluxControlPipeline.from_pretrained("black-forest-labs/FLUX.1-Depth-dev", torch_dtype=torch.bfloat16).to("cuda") + +prompt = "A robot made of exotic candies and chocolates of different kinds. The background is filled with confetti and celebratory gifts." +control_image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/robot.png") + +processor = DepthPreprocessor.from_pretrained("LiheYoung/depth-anything-large-hf") +control_image = processor(control_image)[0].convert("RGB") + +image = pipe( + prompt=prompt, + control_image=control_image, + height=1024, + width=1024, + num_inference_steps=30, + guidance_scale=10.0, + generator=torch.Generator().manual_seed(42), +).images[0] +image.save("output.png") +``` + +Depth Control is also possible with a LoRA variant of this condition. The usage is as follows: + +```python +# !pip install git+https://github.com/huggingface/image_gen_aux +import torch +from diffusers import FluxControlPipeline, FluxTransformer2DModel +from diffusers.utils import load_image +from image_gen_aux import DepthPreprocessor + +pipe = FluxControlPipeline.from_pretrained("black-forest-labs/FLUX.1-dev", torch_dtype=torch.bfloat16).to("cuda") +pipe.load_lora_weights("black-forest-labs/FLUX.1-Depth-dev-lora") + +prompt = "A robot made of exotic candies and chocolates of different kinds. The background is filled with confetti and celebratory gifts." +control_image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/robot.png") + +processor = DepthPreprocessor.from_pretrained("LiheYoung/depth-anything-large-hf") +control_image = processor(control_image)[0].convert("RGB") + +image = pipe( + prompt=prompt, + control_image=control_image, + height=1024, + width=1024, + num_inference_steps=30, + guidance_scale=10.0, + generator=torch.Generator().manual_seed(42), +).images[0] +image.save("output.png") +``` + +### Redux + +* Flux Redux pipeline is an adapter for FLUX.1 base models. It can be used with both flux-dev and flux-schnell, for image-to-image generation. +* You can first use the `FluxPriorReduxPipeline` to get the `prompt_embeds` and `pooled_prompt_embeds`, and then feed them into the `FluxPipeline` for image-to-image generation. +* When use `FluxPriorReduxPipeline` with a base pipeline, you can set `text_encoder=None` and `text_encoder_2=None` in the base pipeline, in order to save VRAM. + +```python +import torch +from diffusers import FluxPriorReduxPipeline, FluxPipeline +from diffusers.utils import load_image +device = "cuda" +dtype = torch.bfloat16 + + +repo_redux = "black-forest-labs/FLUX.1-Redux-dev" +repo_base = "black-forest-labs/FLUX.1-dev" +pipe_prior_redux = FluxPriorReduxPipeline.from_pretrained(repo_redux, torch_dtype=dtype).to(device) +pipe = FluxPipeline.from_pretrained( + repo_base, + text_encoder=None, + text_encoder_2=None, + torch_dtype=torch.bfloat16 +).to(device) + +image = load_image("https://huggingface.co/datasets/YiYiXu/testing-images/resolve/main/style_ziggy/img5.png") +pipe_prior_output = pipe_prior_redux(image) +images = pipe( + guidance_scale=2.5, + num_inference_steps=50, + generator=torch.Generator("cpu").manual_seed(0), + **pipe_prior_output, +).images +images[0].save("flux-redux.png") +``` + +### Kontext + +Flux Kontext is a model that allows in-context control of the image generation process, allowing for editing, refinement, relighting, style transfer, character customization, and more. + +```python +import torch +from diffusers import FluxKontextPipeline +from diffusers.utils import load_image + +pipe = FluxKontextPipeline.from_pretrained( + "black-forest-labs/FLUX.1-Kontext-dev", torch_dtype=torch.bfloat16 +) +pipe.to("cuda") + +image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/yarn-art-pikachu.png").convert("RGB") +prompt = "Make Pikachu hold a sign that says 'Black Forest Labs is awesome', yarn art style, detailed, vibrant colors" +image = pipe( + image=image, + prompt=prompt, + guidance_scale=2.5, + generator=torch.Generator().manual_seed(42), +).images[0] +image.save("flux-kontext.png") +``` + +Flux Kontext comes with an integrity safety checker, which should be run after the image generation step. To run the safety checker, install the official repository from [black-forest-labs/flux](https://github.com/black-forest-labs/flux) and add the following code: + +```python +from flux.content_filters import PixtralContentFilter + +# ... pipeline invocation to generate images + +integrity_checker = PixtralContentFilter(torch.device("cuda")) +image_ = np.array(image) / 255.0 +image_ = 2 * image_ - 1 +image_ = torch.from_numpy(image_).to("cuda", dtype=torch.float32).unsqueeze(0).permute(0, 3, 1, 2) +if integrity_checker.test_image(image_): + raise ValueError("Your image has been flagged. Choose another prompt/image or try again.") +``` + +### Kontext Inpainting +`FluxKontextInpaintPipeline` enables image modification within a fixed mask region. It currently supports both text-based conditioning and image-reference conditioning. + + + + +```python +import torch +from diffusers import FluxKontextInpaintPipeline +from diffusers.utils import load_image + +prompt = "Change the yellow dinosaur to green one" +img_url = ( + "https://github.com/ZenAI-Vietnam/Flux-Kontext-pipelines/blob/main/assets/dinosaur_input.jpeg?raw=true" +) +mask_url = ( + "https://github.com/ZenAI-Vietnam/Flux-Kontext-pipelines/blob/main/assets/dinosaur_mask.png?raw=true" +) + +source = load_image(img_url) +mask = load_image(mask_url) + +pipe = FluxKontextInpaintPipeline.from_pretrained( + "black-forest-labs/FLUX.1-Kontext-dev", torch_dtype=torch.bfloat16 +) +pipe.to("cuda") + +image = pipe(prompt=prompt, image=source, mask_image=mask, strength=1.0).images[0] +image.save("kontext_inpainting_normal.png") +``` + + + +```python +import torch +from diffusers import FluxKontextInpaintPipeline +from diffusers.utils import load_image + +pipe = FluxKontextInpaintPipeline.from_pretrained( + "black-forest-labs/FLUX.1-Kontext-dev", torch_dtype=torch.bfloat16 +) +pipe.to("cuda") + +prompt = "Replace this ball" +img_url = "https://images.pexels.com/photos/39362/the-ball-stadion-football-the-pitch-39362.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500" +mask_url = "https://github.com/ZenAI-Vietnam/Flux-Kontext-pipelines/blob/main/assets/ball_mask.png?raw=true" +image_reference_url = "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTah3x6OL_ECMBaZ5ZlJJhNsyC-OSMLWAI-xw&s" + +source = load_image(img_url) +mask = load_image(mask_url) +image_reference = load_image(image_reference_url) + +mask = pipe.mask_processor.blur(mask, blur_factor=12) +image = pipe( + prompt=prompt, image=source, mask_image=mask, image_reference=image_reference, strength=1.0 +).images[0] +image.save("kontext_inpainting_ref.png") +``` + + + +## Combining Flux Turbo LoRAs with Flux Control, Fill, and Redux + +We can combine Flux Turbo LoRAs with Flux Control and other pipelines like Fill and Redux to enable few-steps' inference. The example below shows how to do that for Flux Control LoRA for depth and turbo LoRA from [`ByteDance/Hyper-SD`](https://hf.co/ByteDance/Hyper-SD). + +```py +from diffusers import FluxControlPipeline +from image_gen_aux import DepthPreprocessor +from diffusers.utils import load_image +from huggingface_hub import hf_hub_download +import torch + +control_pipe = FluxControlPipeline.from_pretrained("black-forest-labs/FLUX.1-dev", torch_dtype=torch.bfloat16) +control_pipe.load_lora_weights("black-forest-labs/FLUX.1-Depth-dev-lora", adapter_name="depth") +control_pipe.load_lora_weights( + hf_hub_download("ByteDance/Hyper-SD", "Hyper-FLUX.1-dev-8steps-lora.safetensors"), adapter_name="hyper-sd" +) +control_pipe.set_adapters(["depth", "hyper-sd"], adapter_weights=[0.85, 0.125]) +control_pipe.enable_model_cpu_offload() + +prompt = "A robot made of exotic candies and chocolates of different kinds. The background is filled with confetti and celebratory gifts." +control_image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/robot.png") + +processor = DepthPreprocessor.from_pretrained("LiheYoung/depth-anything-large-hf") +control_image = processor(control_image)[0].convert("RGB") + +image = control_pipe( + prompt=prompt, + control_image=control_image, + height=1024, + width=1024, + num_inference_steps=8, + guidance_scale=10.0, + generator=torch.Generator().manual_seed(42), +).images[0] +image.save("output.png") +``` + +## Note about `unload_lora_weights()` when using Flux LoRAs + +When unloading the Control LoRA weights, call `pipe.unload_lora_weights(reset_to_overwritten_params=True)` to reset the `pipe.transformer` completely back to its original form. The resultant pipeline can then be used with methods like [`DiffusionPipeline.from_pipe`]. More details about this argument are available in [this PR](https://github.com/huggingface/diffusers/pull/10397). + +## IP-Adapter + +> [!TIP] +> Check out [IP-Adapter](../../using-diffusers/ip_adapter) to learn more about how IP-Adapters work. + +An IP-Adapter lets you prompt Flux with images, in addition to the text prompt. This is especially useful when describing complex concepts that are difficult to articulate through text alone and you have reference images. + +```python +import torch +from diffusers import FluxPipeline +from diffusers.utils import load_image + +pipe = FluxPipeline.from_pretrained( + "black-forest-labs/FLUX.1-dev", torch_dtype=torch.bfloat16 +).to("cuda") + +image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/flux_ip_adapter_input.jpg").resize((1024, 1024)) + +pipe.load_ip_adapter( + "XLabs-AI/flux-ip-adapter", + weight_name="ip_adapter.safetensors", + image_encoder_pretrained_model_name_or_path="openai/clip-vit-large-patch14" +) +pipe.set_ip_adapter_scale(1.0) + +image = pipe( + width=1024, + height=1024, + prompt="wearing sunglasses", + negative_prompt="", + true_cfg_scale=4.0, + generator=torch.Generator().manual_seed(4444), + ip_adapter_image=image, +).images[0] + +image.save('flux_ip_adapter_output.jpg') +``` + +
+ +
IP-Adapter examples with prompt "wearing sunglasses"
+
+ +## Optimize + +Flux is a very large model and requires ~50GB of RAM/VRAM to load all the modeling components. Enable some of the optimizations below to lower the memory requirements. + +### Group offloading + +[Group offloading](../../optimization/memory#group-offloading) lowers VRAM usage by offloading groups of internal layers rather than the whole model or weights. You need to use [`~hooks.apply_group_offloading`] on all the model components of a pipeline. The `offload_type` parameter allows you to toggle between block and leaf-level offloading. Setting it to `leaf_level` offloads the lowest leaf-level parameters to the CPU instead of offloading at the module-level. + +On CUDA devices that support asynchronous data streaming, set `use_stream=True` to overlap data transfer and computation to accelerate inference. + +> [!TIP] +> It is possible to mix block and leaf-level offloading for different components in a pipeline. + +```py +import torch +from diffusers import FluxPipeline +from diffusers.hooks import apply_group_offloading + +model_id = "black-forest-labs/FLUX.1-dev" +dtype = torch.bfloat16 +pipe = FluxPipeline.from_pretrained( + model_id, + torch_dtype=dtype, +) + +apply_group_offloading( + pipe.transformer, + offload_type="leaf_level", + offload_device=torch.device("cpu"), + onload_device=torch.device("cuda"), + use_stream=True, +) +apply_group_offloading( + pipe.text_encoder, + offload_device=torch.device("cpu"), + onload_device=torch.device("cuda"), + offload_type="leaf_level", + use_stream=True, +) +apply_group_offloading( + pipe.text_encoder_2, + offload_device=torch.device("cpu"), + onload_device=torch.device("cuda"), + offload_type="leaf_level", + use_stream=True, +) +apply_group_offloading( + pipe.vae, + offload_device=torch.device("cpu"), + onload_device=torch.device("cuda"), + offload_type="leaf_level", + use_stream=True, +) + +prompt="A cat wearing sunglasses and working as a lifeguard at pool." + +generator = torch.Generator().manual_seed(181201) +image = pipe( + prompt, + width=576, + height=1024, + num_inference_steps=30, + generator=generator +).images[0] +image +``` + +### Running FP16 inference + +Flux can generate high-quality images with FP16 (i.e. to accelerate inference on Turing/Volta GPUs) but produces different outputs compared to FP32/BF16. The issue is that some activations in the text encoders have to be clipped when running in FP16, which affects the overall image. Forcing text encoders to run with FP32 inference thus removes this output difference. See [here](https://github.com/huggingface/diffusers/pull/9097#issuecomment-2272292516) for details. + +FP16 inference code: +```python +import torch +from diffusers import FluxPipeline + +pipe = FluxPipeline.from_pretrained("black-forest-labs/FLUX.1-schnell", torch_dtype=torch.bfloat16) # can replace schnell with dev +# to run on low vram GPUs (i.e. between 4 and 32 GB VRAM) +pipe.enable_sequential_cpu_offload() +pipe.vae.enable_slicing() +pipe.vae.enable_tiling() + +pipe.to(torch.float16) # casting here instead of in the pipeline constructor because doing so in the constructor loads all models into CPU memory at once + +prompt = "A cat holding a sign that says hello world" +out = pipe( + prompt=prompt, + guidance_scale=0., + height=768, + width=1360, + num_inference_steps=4, + max_sequence_length=256, +).images[0] +out.save("image.png") +``` + +### Quantization + +Quantization helps reduce the memory requirements of very large models by storing model weights in a lower precision data type. However, quantization may have varying impact on video quality depending on the video model. + +Refer to the [Quantization](../../quantization/overview) overview to learn more about supported quantization backends and selecting a quantization backend that supports your use case. The example below demonstrates how to load a quantized [`FluxPipeline`] for inference with bitsandbytes. + +```py +import torch +from diffusers import BitsAndBytesConfig as DiffusersBitsAndBytesConfig, FluxTransformer2DModel, FluxPipeline +from transformers import BitsAndBytesConfig as BitsAndBytesConfig, T5EncoderModel + +quant_config = BitsAndBytesConfig(load_in_8bit=True) +text_encoder_8bit = T5EncoderModel.from_pretrained( + "black-forest-labs/FLUX.1-dev", + subfolder="text_encoder_2", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +quant_config = DiffusersBitsAndBytesConfig(load_in_8bit=True) +transformer_8bit = FluxTransformer2DModel.from_pretrained( + "black-forest-labs/FLUX.1-dev", + subfolder="transformer", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +pipeline = FluxPipeline.from_pretrained( + "black-forest-labs/FLUX.1-dev", + text_encoder_2=text_encoder_8bit, + transformer=transformer_8bit, + torch_dtype=torch.float16, + device_map="balanced", +) + +prompt = "a tiny astronaut hatching from an egg on the moon" +image = pipeline(prompt, guidance_scale=3.5, height=768, width=1360, num_inference_steps=50).images[0] +image.save("flux.png") +``` + +## Single File Loading for the `FluxTransformer2DModel` + +The `FluxTransformer2DModel` supports loading checkpoints in the original format shipped by Black Forest Labs. This is also useful when trying to load finetunes or quantized versions of the models that have been published by the community. + +> [!TIP] +> `FP8` inference can be brittle depending on the GPU type, CUDA version, and `torch` version that you are using. It is recommended that you use the `optimum-quanto` library in order to run FP8 inference on your machine. + +The following example demonstrates how to run Flux with less than 16GB of VRAM. + +First install `optimum-quanto` + +```shell +pip install optimum-quanto +``` + +Then run the following example + +```python +import torch +from diffusers import FluxTransformer2DModel, FluxPipeline +from transformers import T5EncoderModel, CLIPTextModel +from optimum.quanto import freeze, qfloat8, quantize + +bfl_repo = "black-forest-labs/FLUX.1-dev" +dtype = torch.bfloat16 + +transformer = FluxTransformer2DModel.from_single_file("https://huggingface.co/Kijai/flux-fp8/blob/main/flux1-dev-fp8.safetensors", torch_dtype=dtype) +quantize(transformer, weights=qfloat8) +freeze(transformer) + +text_encoder_2 = T5EncoderModel.from_pretrained(bfl_repo, subfolder="text_encoder_2", torch_dtype=dtype) +quantize(text_encoder_2, weights=qfloat8) +freeze(text_encoder_2) + +pipe = FluxPipeline.from_pretrained(bfl_repo, transformer=None, text_encoder_2=None, torch_dtype=dtype) +pipe.transformer = transformer +pipe.text_encoder_2 = text_encoder_2 + +pipe.enable_model_cpu_offload() + +prompt = "A cat holding a sign that says hello world" +image = pipe( + prompt, + guidance_scale=3.5, + output_type="pil", + num_inference_steps=20, + generator=torch.Generator("cpu").manual_seed(0) +).images[0] + +image.save("flux-fp8-dev.png") +``` + +## FluxPipeline + +[[autodoc]] FluxPipeline + - all + - __call__ + +## FluxImg2ImgPipeline + +[[autodoc]] FluxImg2ImgPipeline + - all + - __call__ + +## FluxInpaintPipeline + +[[autodoc]] FluxInpaintPipeline + - all + - __call__ + + +## FluxControlNetInpaintPipeline + +[[autodoc]] FluxControlNetInpaintPipeline + - all + - __call__ + +## FluxControlNetImg2ImgPipeline + +[[autodoc]] FluxControlNetImg2ImgPipeline + - all + - __call__ + +## FluxControlPipeline + +[[autodoc]] FluxControlPipeline + - all + - __call__ + +## FluxControlImg2ImgPipeline + +[[autodoc]] FluxControlImg2ImgPipeline + - all + - __call__ + +## FluxPriorReduxPipeline + +[[autodoc]] FluxPriorReduxPipeline + - all + - __call__ + +## FluxFillPipeline + +[[autodoc]] FluxFillPipeline + - all + - __call__ + +## FluxKontextPipeline + +[[autodoc]] FluxKontextPipeline + - all + - __call__ + +## FluxKontextInpaintPipeline + +[[autodoc]] FluxKontextInpaintPipeline + - all + - __call__ \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/framepack.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/framepack.md new file mode 100644 index 0000000000000000000000000000000000000000..a25cfe24a4ba39afc6a51b6149389e8935c2cdaf --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/framepack.md @@ -0,0 +1,206 @@ + + +# Framepack + +
+ LoRA +
+ +[Packing Input Frame Context in Next-Frame Prediction Models for Video Generation](https://huggingface.co/papers/2504.12626) by Lvmin Zhang and Maneesh Agrawala. + +*We present a neural network structure, FramePack, to train next-frame (or next-frame-section) prediction models for video generation. The FramePack compresses input frames to make the transformer context length a fixed number regardless of the video length. As a result, we are able to process a large number of frames using video diffusion with computation bottleneck similar to image diffusion. This also makes the training video batch sizes significantly higher (batch sizes become comparable to image diffusion training). We also propose an anti-drifting sampling method that generates frames in inverted temporal order with early-established endpoints to avoid exposure bias (error accumulation over iterations). Finally, we show that existing video diffusion models can be finetuned with FramePack, and their visual quality may be improved because the next-frame prediction supports more balanced diffusion schedulers with less extreme flow shift timesteps.* + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## Available models + +| Model name | Description | +|:---|:---| +- [`lllyasviel/FramePackI2V_HY`](https://huggingface.co/lllyasviel/FramePackI2V_HY) | Trained with the "inverted anti-drifting" strategy as described in the paper. Inference requires setting `sampling_type="inverted_anti_drifting"` when running the pipeline. | +- [`lllyasviel/FramePack_F1_I2V_HY_20250503`](https://huggingface.co/lllyasviel/FramePack_F1_I2V_HY_20250503) | Trained with a novel anti-drifting strategy but inference is performed in "vanilla" strategy as described in the paper. Inference requires setting `sampling_type="vanilla"` when running the pipeline. | + +## Usage + +Refer to the pipeline documentation for basic usage examples. The following section contains examples of offloading, different sampling methods, quantization, and more. + +### First and last frame to video + +The following example shows how to use Framepack with start and end image controls, using the inverted anti-drifiting sampling model. + +```python +import torch +from diffusers import HunyuanVideoFramepackPipeline, HunyuanVideoFramepackTransformer3DModel +from diffusers.utils import export_to_video, load_image +from transformers import SiglipImageProcessor, SiglipVisionModel + +transformer = HunyuanVideoFramepackTransformer3DModel.from_pretrained( + "lllyasviel/FramePackI2V_HY", torch_dtype=torch.bfloat16 +) +feature_extractor = SiglipImageProcessor.from_pretrained( + "lllyasviel/flux_redux_bfl", subfolder="feature_extractor" +) +image_encoder = SiglipVisionModel.from_pretrained( + "lllyasviel/flux_redux_bfl", subfolder="image_encoder", torch_dtype=torch.float16 +) +pipe = HunyuanVideoFramepackPipeline.from_pretrained( + "hunyuanvideo-community/HunyuanVideo", + transformer=transformer, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + torch_dtype=torch.float16, +) + +# Enable memory optimizations +pipe.enable_model_cpu_offload() +pipe.vae.enable_tiling() + +prompt = "CG animation style, a small blue bird takes off from the ground, flapping its wings. The bird's feathers are delicate, with a unique pattern on its chest. The background shows a blue sky with white clouds under bright sunshine. The camera follows the bird upward, capturing its flight and the vastness of the sky from a close-up, low-angle perspective." +first_image = load_image( + "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/flf2v_input_first_frame.png" +) +last_image = load_image( + "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/flf2v_input_last_frame.png" +) +output = pipe( + image=first_image, + last_image=last_image, + prompt=prompt, + height=512, + width=512, + num_frames=91, + num_inference_steps=30, + guidance_scale=9.0, + generator=torch.Generator().manual_seed(0), + sampling_type="inverted_anti_drifting", +).frames[0] +export_to_video(output, "output.mp4", fps=30) +``` + +### Vanilla sampling + +The following example shows how to use Framepack with the F1 model trained with vanilla sampling but new regulation approach for anti-drifting. + +```python +import torch +from diffusers import HunyuanVideoFramepackPipeline, HunyuanVideoFramepackTransformer3DModel +from diffusers.utils import export_to_video, load_image +from transformers import SiglipImageProcessor, SiglipVisionModel + +transformer = HunyuanVideoFramepackTransformer3DModel.from_pretrained( + "lllyasviel/FramePack_F1_I2V_HY_20250503", torch_dtype=torch.bfloat16 +) +feature_extractor = SiglipImageProcessor.from_pretrained( + "lllyasviel/flux_redux_bfl", subfolder="feature_extractor" +) +image_encoder = SiglipVisionModel.from_pretrained( + "lllyasviel/flux_redux_bfl", subfolder="image_encoder", torch_dtype=torch.float16 +) +pipe = HunyuanVideoFramepackPipeline.from_pretrained( + "hunyuanvideo-community/HunyuanVideo", + transformer=transformer, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + torch_dtype=torch.float16, +) + +# Enable memory optimizations +pipe.enable_model_cpu_offload() +pipe.vae.enable_tiling() + +image = load_image( + "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/penguin.png" +) +output = pipe( + image=image, + prompt="A penguin dancing in the snow", + height=832, + width=480, + num_frames=91, + num_inference_steps=30, + guidance_scale=9.0, + generator=torch.Generator().manual_seed(0), + sampling_type="vanilla", +).frames[0] +export_to_video(output, "output.mp4", fps=30) +``` + +### Group offloading + +Group offloading ([`~hooks.apply_group_offloading`]) provides aggressive memory optimizations for offloading internal parts of any model to the CPU, with possibly no additional overhead to generation time. If you have very low VRAM available, this approach may be suitable for you depending on the amount of CPU RAM available. + +```python +import torch +from diffusers import HunyuanVideoFramepackPipeline, HunyuanVideoFramepackTransformer3DModel +from diffusers.hooks import apply_group_offloading +from diffusers.utils import export_to_video, load_image +from transformers import SiglipImageProcessor, SiglipVisionModel + +transformer = HunyuanVideoFramepackTransformer3DModel.from_pretrained( + "lllyasviel/FramePack_F1_I2V_HY_20250503", torch_dtype=torch.bfloat16 +) +feature_extractor = SiglipImageProcessor.from_pretrained( + "lllyasviel/flux_redux_bfl", subfolder="feature_extractor" +) +image_encoder = SiglipVisionModel.from_pretrained( + "lllyasviel/flux_redux_bfl", subfolder="image_encoder", torch_dtype=torch.float16 +) +pipe = HunyuanVideoFramepackPipeline.from_pretrained( + "hunyuanvideo-community/HunyuanVideo", + transformer=transformer, + feature_extractor=feature_extractor, + image_encoder=image_encoder, + torch_dtype=torch.float16, +) + +# Enable group offloading +onload_device = torch.device("cuda") +offload_device = torch.device("cpu") +list(map( + lambda x: apply_group_offloading(x, onload_device, offload_device, offload_type="leaf_level", use_stream=True, low_cpu_mem_usage=True), + [pipe.text_encoder, pipe.text_encoder_2, pipe.transformer] +)) +pipe.image_encoder.to(onload_device) +pipe.vae.to(onload_device) +pipe.vae.enable_tiling() + +image = load_image( + "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/penguin.png" +) +output = pipe( + image=image, + prompt="A penguin dancing in the snow", + height=832, + width=480, + num_frames=91, + num_inference_steps=30, + guidance_scale=9.0, + generator=torch.Generator().manual_seed(0), + sampling_type="vanilla", +).frames[0] +print(f"Max memory: {torch.cuda.max_memory_allocated() / 1024**3:.3f} GB") +export_to_video(output, "output.mp4", fps=30) +``` + +## HunyuanVideoFramepackPipeline + +[[autodoc]] HunyuanVideoFramepackPipeline + - all + - __call__ + +## HunyuanVideoPipelineOutput + +[[autodoc]] pipelines.hunyuan_video.pipeline_output.HunyuanVideoPipelineOutput + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hidream.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hidream.md new file mode 100644 index 0000000000000000000000000000000000000000..add4ad3132310afa4717ed2c1e762ba20667d053 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hidream.md @@ -0,0 +1,40 @@ + + +# HiDreamImage + +[HiDream-I1](https://huggingface.co/HiDream-ai) by HiDream.ai + +> [!TIP] +> [Caching](../../optimization/cache) may also speed up inference by storing and reusing intermediate outputs. + +## Available models + +The following models are available for the [`HiDreamImagePipeline`] pipeline: + +| Model name | Description | +|:---|:---| +| [`HiDream-ai/HiDream-I1-Full`](https://huggingface.co/HiDream-ai/HiDream-I1-Full) | - | +| [`HiDream-ai/HiDream-I1-Dev`](https://huggingface.co/HiDream-ai/HiDream-I1-Dev) | - | +| [`HiDream-ai/HiDream-I1-Fast`](https://huggingface.co/HiDream-ai/HiDream-I1-Fast) | - | + +## HiDreamImagePipeline + +[[autodoc]] HiDreamImagePipeline + - all + - __call__ + +## HiDreamImagePipelineOutput + +[[autodoc]] pipelines.hidream_image.pipeline_output.HiDreamImagePipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuan_video.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuan_video.md new file mode 100644 index 0000000000000000000000000000000000000000..cdd81495b6217f8e716fc1821b22f44af15b426b --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuan_video.md @@ -0,0 +1,188 @@ + + +
+
+ + LoRA + +
+
+ +# HunyuanVideo + +[HunyuanVideo](https://huggingface.co/papers/2412.03603) is a 13B parameter diffusion transformer model designed to be competitive with closed-source video foundation models and enable wider community access. This model uses a "dual-stream to single-stream" architecture to separately process the video and text tokens first, before concatenating and feeding them to the transformer to fuse the multimodal information. A pretrained multimodal large language model (MLLM) is used as the encoder because it has better image-text alignment, better image detail description and reasoning, and it can be used as a zero-shot learner if system instructions are added to user prompts. Finally, HunyuanVideo uses a 3D causal variational autoencoder to more efficiently process video data at the original resolution and frame rate. + +You can find all the original HunyuanVideo checkpoints under the [Tencent](https://huggingface.co/tencent) organization. + +> [!TIP] +> Click on the HunyuanVideo models in the right sidebar for more examples of video generation tasks. +> +> The examples below use a checkpoint from [hunyuanvideo-community](https://huggingface.co/hunyuanvideo-community) because the weights are stored in a layout compatible with Diffusers. + +The example below demonstrates how to generate a video optimized for memory or inference speed. + + + + +Refer to the [Reduce memory usage](../../optimization/memory) guide for more details about the various memory saving techniques. + +The quantized HunyuanVideo model below requires ~14GB of VRAM. + +```py +import torch +from diffusers import AutoModel, HunyuanVideoPipeline +from diffusers.quantizers import PipelineQuantizationConfig +from diffusers.utils import export_to_video + +# quantize weights to int4 with bitsandbytes +pipeline_quant_config = PipelineQuantizationConfig( + quant_backend="bitsandbytes_4bit", + quant_kwargs={ + "load_in_4bit": True, + "bnb_4bit_quant_type": "nf4", + "bnb_4bit_compute_dtype": torch.bfloat16 + }, + components_to_quantize="transformer" +) + +pipeline = HunyuanVideoPipeline.from_pretrained( + "hunyuanvideo-community/HunyuanVideo", + quantization_config=pipeline_quant_config, + torch_dtype=torch.bfloat16, +) + +# model-offloading and tiling +pipeline.enable_model_cpu_offload() +pipeline.vae.enable_tiling() + +prompt = "A fluffy teddy bear sits on a bed of soft pillows surrounded by children's toys." +video = pipeline(prompt=prompt, num_frames=61, num_inference_steps=30).frames[0] +export_to_video(video, "output.mp4", fps=15) +``` + + + + +[Compilation](../../optimization/fp16#torchcompile) is slow the first time but subsequent calls to the pipeline are faster. + +```py +import torch +from diffusers import AutoModel, HunyuanVideoPipeline +from diffusers.quantizers import PipelineQuantizationConfig +from diffusers.utils import export_to_video + +# quantize weights to int4 with bitsandbytes +pipeline_quant_config = PipelineQuantizationConfig( + quant_backend="bitsandbytes_4bit", + quant_kwargs={ + "load_in_4bit": True, + "bnb_4bit_quant_type": "nf4", + "bnb_4bit_compute_dtype": torch.bfloat16 + }, + components_to_quantize="transformer" +) + +pipeline = HunyuanVideoPipeline.from_pretrained( + "hunyuanvideo-community/HunyuanVideo", + quantization_config=pipeline_quant_config, + torch_dtype=torch.bfloat16, +) + +# model-offloading and tiling +pipeline.enable_model_cpu_offload() +pipeline.vae.enable_tiling() + +# torch.compile +pipeline.transformer.to(memory_format=torch.channels_last) +pipeline.transformer = torch.compile( + pipeline.transformer, mode="max-autotune", fullgraph=True +) + +prompt = "A fluffy teddy bear sits on a bed of soft pillows surrounded by children's toys." +video = pipeline(prompt=prompt, num_frames=61, num_inference_steps=30).frames[0] +export_to_video(video, "output.mp4", fps=15) +``` + + + + +## Notes + +- HunyuanVideo supports LoRAs with [`~loaders.HunyuanVideoLoraLoaderMixin.load_lora_weights`]. + +
+ Show example code + + ```py + import torch + from diffusers import AutoModel, HunyuanVideoPipeline + from diffusers.quantizers import PipelineQuantizationConfig + from diffusers.utils import export_to_video + + # quantize weights to int4 with bitsandbytes + pipeline_quant_config = PipelineQuantizationConfig( + quant_backend="bitsandbytes_4bit", + quant_kwargs={ + "load_in_4bit": True, + "bnb_4bit_quant_type": "nf4", + "bnb_4bit_compute_dtype": torch.bfloat16 + }, + components_to_quantize="transformer" + ) + + pipeline = HunyuanVideoPipeline.from_pretrained( + "hunyuanvideo-community/HunyuanVideo", + quantization_config=pipeline_quant_config, + torch_dtype=torch.bfloat16, + ) + + # load LoRA weights + pipeline.load_lora_weights("https://huggingface.co/lucataco/hunyuan-steamboat-willie-10", adapter_name="steamboat-willie") + pipeline.set_adapters("steamboat-willie", 0.9) + + # model-offloading and tiling + pipeline.enable_model_cpu_offload() + pipeline.vae.enable_tiling() + + # use "In the style of SWR" to trigger the LoRA + prompt = """ + In the style of SWR. A black and white animated scene featuring a fluffy teddy bear sits on a bed of soft pillows surrounded by children's toys. + """ + video = pipeline(prompt=prompt, num_frames=61, num_inference_steps=30).frames[0] + export_to_video(video, "output.mp4", fps=15) + ``` + +
+ +- Refer to the table below for recommended inference values. + + | parameter | recommended value | + |---|---| + | text encoder dtype | `torch.float16` | + | transformer dtype | `torch.bfloat16` | + | vae dtype | `torch.float16` | + | `num_frames (k)` | 4 * `k` + 1 | + +- Try lower `shift` values (`2.0` to `5.0`) for lower resolution videos and higher `shift` values (`7.0` to `12.0`) for higher resolution images. + +## HunyuanVideoPipeline + +[[autodoc]] HunyuanVideoPipeline + - all + - __call__ + +## HunyuanVideoPipelineOutput + +[[autodoc]] pipelines.hunyuan_video.pipeline_output.HunyuanVideoPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuandit.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuandit.md new file mode 100644 index 0000000000000000000000000000000000000000..3f4db66c6c949d3c86f96a03857b627828970941 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuandit.md @@ -0,0 +1,95 @@ + + +# Hunyuan-DiT +![chinese elements understanding](https://github.com/gnobitab/diffusers-hunyuan/assets/1157982/39b99036-c3cb-4f16-bb1a-40ec25eda573) + +[Hunyuan-DiT : A Powerful Multi-Resolution Diffusion Transformer with Fine-Grained Chinese Understanding](https://huggingface.co/papers/2405.08748) from Tencent Hunyuan. + +The abstract from the paper is: + +*We present Hunyuan-DiT, a text-to-image diffusion transformer with fine-grained understanding of both English and Chinese. To construct Hunyuan-DiT, we carefully design the transformer structure, text encoder, and positional encoding. We also build from scratch a whole data pipeline to update and evaluate data for iterative model optimization. For fine-grained language understanding, we train a Multimodal Large Language Model to refine the captions of the images. Finally, Hunyuan-DiT can perform multi-turn multimodal dialogue with users, generating and refining images according to the context. Through our holistic human evaluation protocol with more than 50 professional human evaluators, Hunyuan-DiT sets a new state-of-the-art in Chinese-to-image generation compared with other open-source models.* + + +You can find the original codebase at [Tencent/HunyuanDiT](https://github.com/Tencent/HunyuanDiT) and all the available checkpoints at [Tencent-Hunyuan](https://huggingface.co/Tencent-Hunyuan/HunyuanDiT). + +**Highlights**: HunyuanDiT supports Chinese/English-to-image, multi-resolution generation. + +HunyuanDiT has the following components: +* It uses a diffusion transformer as the backbone +* It combines two text encoders, a bilingual CLIP and a multilingual T5 encoder + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +> [!TIP] +> You can further improve generation quality by passing the generated image from [`HungyuanDiTPipeline`] to the [SDXL refiner](../../using-diffusers/sdxl#base-to-refiner-model) model. + +## Optimization + +You can optimize the pipeline's runtime and memory consumption with torch.compile and feed-forward chunking. To learn about other optimization methods, check out the [Speed up inference](../../optimization/fp16) and [Reduce memory usage](../../optimization/memory) guides. + +### Inference + +Use [`torch.compile`](https://huggingface.co/docs/diffusers/main/en/tutorials/fast_diffusion#torchcompile) to reduce the inference latency. + +First, load the pipeline: + +```python +from diffusers import HunyuanDiTPipeline +import torch + +pipeline = HunyuanDiTPipeline.from_pretrained( + "Tencent-Hunyuan/HunyuanDiT-Diffusers", torch_dtype=torch.float16 +).to("cuda") +``` + +Then change the memory layout of the pipelines `transformer` and `vae` components to `torch.channels-last`: + +```python +pipeline.transformer.to(memory_format=torch.channels_last) +pipeline.vae.to(memory_format=torch.channels_last) +``` + +Finally, compile the components and run inference: + +```python +pipeline.transformer = torch.compile(pipeline.transformer, mode="max-autotune", fullgraph=True) +pipeline.vae.decode = torch.compile(pipeline.vae.decode, mode="max-autotune", fullgraph=True) + +image = pipeline(prompt="一个宇航员在骑马").images[0] +``` + +The [benchmark](https://gist.github.com/sayakpaul/29d3a14905cfcbf611fe71ebd22e9b23) results on a 80GB A100 machine are: + +```bash +With torch.compile(): Average inference time: 12.470 seconds. +Without torch.compile(): Average inference time: 20.570 seconds. +``` + +### Memory optimization + +By loading the T5 text encoder in 8 bits, you can run the pipeline in just under 6 GBs of GPU VRAM. Refer to [this script](https://gist.github.com/sayakpaul/3154605f6af05b98a41081aaba5ca43e) for details. + +Furthermore, you can use the [`~HunyuanDiT2DModel.enable_forward_chunking`] method to reduce memory usage. Feed-forward chunking runs the feed-forward layers in a transformer block in a loop instead of all at once. This gives you a trade-off between memory consumption and inference runtime. + +```diff ++ pipeline.transformer.enable_forward_chunking(chunk_size=1, dim=1) +``` + + +## HunyuanDiTPipeline + +[[autodoc]] HunyuanDiTPipeline + - all + - __call__ + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuanimage21.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuanimage21.md new file mode 100644 index 0000000000000000000000000000000000000000..f7ba40e237960b26c57eeac60dd667609bb01d93 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/hunyuanimage21.md @@ -0,0 +1,152 @@ + + +# HunyuanImage2.1 + + +HunyuanImage-2.1 is a 17B text-to-image model that is capable of generating 2K (2048 x 2048) resolution images + +HunyuanImage-2.1 comes in the following variants: + +| model type | model id | +|:----------:|:--------:| +| HunyuanImage-2.1 | [hunyuanvideo-community/HunyuanImage-2.1-Diffusers](https://huggingface.co/hunyuanvideo-community/HunyuanImage-2.1-Diffusers) | +| HunyuanImage-2.1-Distilled | [hunyuanvideo-community/HunyuanImage-2.1-Distilled-Diffusers](https://huggingface.co/hunyuanvideo-community/HunyuanImage-2.1-Distilled-Diffusers) | +| HunyuanImage-2.1-Refiner | [hunyuanvideo-community/HunyuanImage-2.1-Refiner-Diffusers](https://huggingface.co/hunyuanvideo-community/HunyuanImage-2.1-Refiner-Diffusers) | + +> [!TIP] +> [Caching](../../optimization/cache) may also speed up inference by storing and reusing intermediate outputs. + +## HunyuanImage-2.1 + +HunyuanImage-2.1 applies [Adaptive Projected Guidance (APG)](https://huggingface.co/papers/2410.02416) combined with Classifier-Free Guidance (CFG) in the denoising loop. `HunyuanImagePipeline` has a `guider` component (read more about [Guider](../modular_diffusers/guiders.md)) and does not take a `guidance_scale` parameter at runtime. To change guider-related parameters, e.g., `guidance_scale`, you can update the `guider` configuration instead. + +```python +import torch +from diffusers import HunyuanImagePipeline + +pipe = HunyuanImagePipeline.from_pretrained( + "hunyuanvideo-community/HunyuanImage-2.1-Diffusers", + torch_dtype=torch.bfloat16 +) +pipe = pipe.to("cuda") +``` + +You can inspect the `guider` object: + +```py +>>> pipe.guider +AdaptiveProjectedMixGuidance { + "_class_name": "AdaptiveProjectedMixGuidance", + "_diffusers_version": "0.36.0.dev0", + "adaptive_projected_guidance_momentum": -0.5, + "adaptive_projected_guidance_rescale": 10.0, + "adaptive_projected_guidance_scale": 10.0, + "adaptive_projected_guidance_start_step": 5, + "enabled": true, + "eta": 0.0, + "guidance_rescale": 0.0, + "guidance_scale": 3.5, + "start": 0.0, + "stop": 1.0, + "use_original_formulation": false +} + +State: + step: None + num_inference_steps: None + timestep: None + count_prepared: 0 + enabled: True + num_conditions: 2 + momentum_buffer: None + is_apg_enabled: False + is_cfg_enabled: True +``` + +To update the guider with a different configuration, use the `new()` method. For example, to generate an image with `guidance_scale=5.0` while keeping all other default guidance parameters: + +```py +import torch +from diffusers import HunyuanImagePipeline + +pipe = HunyuanImagePipeline.from_pretrained( + "hunyuanvideo-community/HunyuanImage-2.1-Diffusers", + torch_dtype=torch.bfloat16 +) +pipe = pipe.to("cuda") + +# Update the guider configuration +pipe.guider = pipe.guider.new(guidance_scale=5.0) + +prompt = ( + "A cute, cartoon-style anthropomorphic penguin plush toy with fluffy fur, standing in a painting studio, " + "wearing a red knitted scarf and a red beret with the word 'Tencent' on it, holding a paintbrush with a " + "focused expression as it paints an oil painting of the Mona Lisa, rendered in a photorealistic photographic style." +) + +image = pipe( + prompt=prompt, + num_inference_steps=50, + height=2048, + width=2048, +).images[0] +image.save("image.png") +``` + + +## HunyuanImage-2.1-Distilled + +use `distilled_guidance_scale` with the guidance-distilled checkpoint, + +```py +import torch +from diffusers import HunyuanImagePipeline +pipe = HunyuanImagePipeline.from_pretrained("hunyuanvideo-community/HunyuanImage-2.1-Distilled-Diffusers", torch_dtype=torch.bfloat16) +pipe = pipe.to("cuda") + +prompt = ( + "A cute, cartoon-style anthropomorphic penguin plush toy with fluffy fur, standing in a painting studio, " + "wearing a red knitted scarf and a red beret with the word 'Tencent' on it, holding a paintbrush with a " + "focused expression as it paints an oil painting of the Mona Lisa, rendered in a photorealistic photographic style." +) + +out = pipe( + prompt, + num_inference_steps=8, + distilled_guidance_scale=3.25, + height=2048, + width=2048, + generator=generator, +).images[0] + +``` + + +## HunyuanImagePipeline + +[[autodoc]] HunyuanImagePipeline + - all + - __call__ + +## HunyuanImageRefinerPipeline + +[[autodoc]] HunyuanImageRefinerPipeline + - all + - __call__ + + +## HunyuanImagePipelineOutput + +[[autodoc]] pipelines.hunyuan_image.pipeline_output.HunyuanImagePipelineOutput \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/i2vgenxl.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/i2vgenxl.md new file mode 100644 index 0000000000000000000000000000000000000000..711a5625f99cbfc3491736a73fd5074cf041deea --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/i2vgenxl.md @@ -0,0 +1,58 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# I2VGen-XL + +[I2VGen-XL: High-Quality Image-to-Video Synthesis via Cascaded Diffusion Models](https://hf.co/papers/2311.04145.pdf) by Shiwei Zhang, Jiayu Wang, Yingya Zhang, Kang Zhao, Hangjie Yuan, Zhiwu Qin, Xiang Wang, Deli Zhao, and Jingren Zhou. + +The abstract from the paper is: + +*Video synthesis has recently made remarkable strides benefiting from the rapid development of diffusion models. However, it still encounters challenges in terms of semantic accuracy, clarity and spatio-temporal continuity. They primarily arise from the scarcity of well-aligned text-video data and the complex inherent structure of videos, making it difficult for the model to simultaneously ensure semantic and qualitative excellence. In this report, we propose a cascaded I2VGen-XL approach that enhances model performance by decoupling these two factors and ensures the alignment of the input data by utilizing static images as a form of crucial guidance. I2VGen-XL consists of two stages: i) the base stage guarantees coherent semantics and preserves content from input images by using two hierarchical encoders, and ii) the refinement stage enhances the video's details by incorporating an additional brief text and improves the resolution to 1280×720. To improve the diversity, we collect around 35 million single-shot text-video pairs and 6 billion text-image pairs to optimize the model. By this means, I2VGen-XL can simultaneously enhance the semantic accuracy, continuity of details and clarity of generated videos. Through extensive experiments, we have investigated the underlying principles of I2VGen-XL and compared it with current top methods, which can demonstrate its effectiveness on diverse data. The source code and models will be publicly available at [this https URL](https://i2vgen-xl.github.io/).* + +The original codebase can be found [here](https://github.com/ali-vilab/i2vgen-xl/). The model checkpoints can be found [here](https://huggingface.co/ali-vilab/). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. Also, to know more about reducing the memory usage of this pipeline, refer to the ["Reduce memory usage"] section [here](../../using-diffusers/svd#reduce-memory-usage). + +Sample output with I2VGenXL: + + + + + +
+ library. +
+ library +
+ +## Notes + +* I2VGenXL always uses a `clip_skip` value of 1. This means it leverages the penultimate layer representations from the text encoder of CLIP. +* It can generate videos of quality that is often on par with [Stable Video Diffusion](../../using-diffusers/svd) (SVD). +* Unlike SVD, it additionally accepts text prompts as inputs. +* It can generate higher resolution videos. +* When using the [`DDIMScheduler`] (which is default for this pipeline), less than 50 steps for inference leads to bad results. +* This implementation is 1-stage variant of I2VGenXL. The main figure in the [I2VGen-XL](https://huggingface.co/papers/2311.04145) paper shows a 2-stage variant, however, 1-stage variant works well. See [this discussion](https://github.com/huggingface/diffusers/discussions/7952) for more details. + +## I2VGenXLPipeline +[[autodoc]] I2VGenXLPipeline + - all + - __call__ + +## I2VGenXLPipelineOutput +[[autodoc]] pipelines.i2vgen_xl.pipeline_i2vgen_xl.I2VGenXLPipelineOutput \ No newline at end of file diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky.md new file mode 100644 index 0000000000000000000000000000000000000000..7717f2db69a527f09c3e9cb3f478fb38f844b6d6 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky.md @@ -0,0 +1,67 @@ + + +# Kandinsky 2.1 + +Kandinsky 2.1 is created by [Arseniy Shakhmatov](https://github.com/cene555), [Anton Razzhigaev](https://github.com/razzant), [Aleksandr Nikolich](https://github.com/AlexWortega), [Vladimir Arkhipkin](https://github.com/oriBetelgeuse), [Igor Pavlov](https://github.com/boomb0om), [Andrey Kuznetsov](https://github.com/kuznetsoffandrey), and [Denis Dimitrov](https://github.com/denndimitrov). + +The description from it's GitHub page is: + +*Kandinsky 2.1 inherits best practicies from Dall-E 2 and Latent diffusion, while introducing some new ideas. As text and image encoder it uses CLIP model and diffusion image prior (mapping) between latent spaces of CLIP modalities. This approach increases the visual performance of the model and unveils new horizons in blending images and text-guided image manipulation.* + +The original codebase can be found at [ai-forever/Kandinsky-2](https://github.com/ai-forever/Kandinsky-2). + +> [!TIP] +> Check out the [Kandinsky Community](https://huggingface.co/kandinsky-community) organization on the Hub for the official model checkpoints for tasks like text-to-image, image-to-image, and inpainting. + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## KandinskyPriorPipeline + +[[autodoc]] KandinskyPriorPipeline + - all + - __call__ + - interpolate + +## KandinskyPipeline + +[[autodoc]] KandinskyPipeline + - all + - __call__ + +## KandinskyCombinedPipeline + +[[autodoc]] KandinskyCombinedPipeline + - all + - __call__ + +## KandinskyImg2ImgPipeline + +[[autodoc]] KandinskyImg2ImgPipeline + - all + - __call__ + +## KandinskyImg2ImgCombinedPipeline + +[[autodoc]] KandinskyImg2ImgCombinedPipeline + - all + - __call__ + +## KandinskyInpaintPipeline + +[[autodoc]] KandinskyInpaintPipeline + - all + - __call__ + +## KandinskyInpaintCombinedPipeline + +[[autodoc]] KandinskyInpaintCombinedPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky3.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky3.md new file mode 100644 index 0000000000000000000000000000000000000000..f08afa8879042f6b7c0d7b1f814add2399ab9da5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky3.md @@ -0,0 +1,47 @@ + + +# Kandinsky 3 + +
+ LoRA +
+ +Kandinsky 3 is created by [Vladimir Arkhipkin](https://github.com/oriBetelgeuse),[Anastasia Maltseva](https://github.com/NastyaMittseva),[Igor Pavlov](https://github.com/boomb0om),[Andrei Filatov](https://github.com/anvilarth),[Arseniy Shakhmatov](https://github.com/cene555),[Andrey Kuznetsov](https://github.com/kuznetsoffandrey),[Denis Dimitrov](https://github.com/denndimitrov), [Zein Shaheen](https://github.com/zeinsh) + +The description from it's GitHub page: + +*Kandinsky 3.0 is an open-source text-to-image diffusion model built upon the Kandinsky2-x model family. In comparison to its predecessors, enhancements have been made to the text understanding and visual quality of the model, achieved by increasing the size of the text encoder and Diffusion U-Net models, respectively.* + +Its architecture includes 3 main components: +1. [FLAN-UL2](https://huggingface.co/google/flan-ul2), which is an encoder decoder model based on the T5 architecture. +2. New U-Net architecture featuring BigGAN-deep blocks doubles depth while maintaining the same number of parameters. +3. Sber-MoVQGAN is a decoder proven to have superior results in image restoration. + + + +The original codebase can be found at [ai-forever/Kandinsky-3](https://github.com/ai-forever/Kandinsky-3). + +> [!TIP] +> Check out the [Kandinsky Community](https://huggingface.co/kandinsky-community) organization on the Hub for the official model checkpoints for tasks like text-to-image, image-to-image, and inpainting. + +> [!TIP] +> Make sure to check out the schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## Kandinsky3Pipeline + +[[autodoc]] Kandinsky3Pipeline + - all + - __call__ + +## Kandinsky3Img2ImgPipeline + +[[autodoc]] Kandinsky3Img2ImgPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky5_video.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky5_video.md new file mode 100644 index 0000000000000000000000000000000000000000..533db23e1c75fe68804040e79eca8cc8014e1019 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky5_video.md @@ -0,0 +1,149 @@ + + +# Kandinsky 5.0 Video + +Kandinsky 5.0 Video is created by the Kandinsky team: Alexey Letunovskiy, Maria Kovaleva, Ivan Kirillov, Lev Novitskiy, Denis Koposov, Dmitrii Mikhailov, Anna Averchenkova, Andrey Shutkin, Julia Agafonova, Olga Kim, Anastasiia Kargapoltseva, Nikita Kiselev, Anna Dmitrienko, Anastasia Maltseva, Kirill Chernyshev, Ilia Vasiliev, Viacheslav Vasilev, Vladimir Polovnikov, Yury Kolabushin, Alexander Belykh, Mikhail Mamaev, Anastasia Aliaskina, Tatiana Nikulina, Polina Gavrilova, Vladimir Arkhipkin, Vladimir Korviakov, Nikolai Gerasimenko, Denis Parkhomenko, Denis Dimitrov + + +Kandinsky 5.0 is a family of diffusion models for Video & Image generation. Kandinsky 5.0 T2V Lite is a lightweight video generation model (2B parameters) that ranks #1 among open-source models in its class. It outperforms larger models and offers the best understanding of Russian concepts in the open-source ecosystem. + +The model introduces several key innovations: +- **Latent diffusion pipeline** with **Flow Matching** for improved training stability +- **Diffusion Transformer (DiT)** as the main generative backbone with cross-attention to text embeddings +- Dual text encoding using **Qwen2.5-VL** and **CLIP** for comprehensive text understanding +- **HunyuanVideo 3D VAE** for efficient video encoding and decoding +- **Sparse attention mechanisms** (NABLA) for efficient long-sequence processing + +The original codebase can be found at [ai-forever/Kandinsky-5](https://github.com/ai-forever/Kandinsky-5). + +> [!TIP] +> Check out the [AI Forever](https://huggingface.co/ai-forever) organization on the Hub for the official model checkpoints for text-to-video generation, including pretrained, SFT, no-CFG, and distilled variants. + +## Available Models + +Kandinsky 5.0 T2V Lite comes in several variants optimized for different use cases: + +| model_id | Description | Use Cases | +|------------|-------------|-----------| +| **ai-forever/Kandinsky-5.0-T2V-Lite-sft-5s-Diffusers** | 5 second Supervised Fine-Tuned model | Highest generation quality | +| **ai-forever/Kandinsky-5.0-T2V-Lite-sft-10s-Diffusers** | 10 second Supervised Fine-Tuned model | Highest generation quality | +| **ai-forever/Kandinsky-5.0-T2V-Lite-nocfg-5s-Diffusers** | 5 second Classifier-Free Guidance distilled | 2× faster inference | +| **ai-forever/Kandinsky-5.0-T2V-Lite-nocfg-10s-Diffusers** | 10 second Classifier-Free Guidance distilled | 2× faster inference | +| **ai-forever/Kandinsky-5.0-T2V-Lite-distilled16steps-5s-Diffusers** | 5 second Diffusion distilled to 16 steps | 6× faster inference, minimal quality loss | +| **ai-forever/Kandinsky-5.0-T2V-Lite-distilled16steps-10s-Diffusers** | 10 second Diffusion distilled to 16 steps | 6× faster inference, minimal quality loss | +| **ai-forever/Kandinsky-5.0-T2V-Lite-pretrain-5s-Diffusers** | 5 second Base pretrained model | Research and fine-tuning | +| **ai-forever/Kandinsky-5.0-T2V-Lite-pretrain-10s-Diffusers** | 10 second Base pretrained model | Research and fine-tuning | + +All models are available in 5-second and 10-second video generation versions. + +## Kandinsky5T2VPipeline + +[[autodoc]] Kandinsky5T2VPipeline + - all + - __call__ + +## Usage Examples + +### Basic Text-to-Video Generation + +```python +import torch +from diffusers import Kandinsky5T2VPipeline +from diffusers.utils import export_to_video + +# Load the pipeline +model_id = "ai-forever/Kandinsky-5.0-T2V-Lite-sft-5s-Diffusers" +pipe = Kandinsky5T2VPipeline.from_pretrained(model_id, torch_dtype=torch.bfloat16) +pipe = pipe.to("cuda") + +# Generate video +prompt = "A cat and a dog baking a cake together in a kitchen." +negative_prompt = "Static, 2D cartoon, cartoon, 2d animation, paintings, images, worst quality, low quality, ugly, deformed, walking backwards" + +output = pipe( + prompt=prompt, + negative_prompt=negative_prompt, + height=512, + width=768, + num_frames=121, # ~5 seconds at 24fps + num_inference_steps=50, + guidance_scale=5.0, +).frames[0] + +export_to_video(output, "output.mp4", fps=24, quality=9) +``` + +### 10 second Models +**⚠️ Warning!** all 10 second models should be used with Flex attention and max-autotune-no-cudagraphs compilation: + +```python +pipe = Kandinsky5T2VPipeline.from_pretrained( + "ai-forever/Kandinsky-5.0-T2V-Lite-sft-10s-Diffusers", + torch_dtype=torch.bfloat16 +) +pipe = pipe.to("cuda") + +pipe.transformer.set_attention_backend( + "flex" +) # <--- Sett attention bakend to Flex +pipe.transformer.compile( + mode="max-autotune-no-cudagraphs", + dynamic=True +) # <--- Compile with max-autotune-no-cudagraphs + +prompt = "A cat and a dog baking a cake together in a kitchen." +negative_prompt = "Static, 2D cartoon, cartoon, 2d animation, paintings, images, worst quality, low quality, ugly, deformed, walking backwards" + +output = pipe( + prompt=prompt, + negative_prompt=negative_prompt, + height=512, + width=768, + num_frames=241, + num_inference_steps=50, + guidance_scale=5.0, +).frames[0] + +export_to_video(output, "output.mp4", fps=24, quality=9) +``` + +### Diffusion Distilled model +**⚠️ Warning!** all nocfg and diffusion distilled models should be infered wothout CFG (```guidance_scale=1.0```): + +```python +model_id = "ai-forever/Kandinsky-5.0-T2V-Lite-distilled16steps-5s-Diffusers" +pipe = Kandinsky5T2VPipeline.from_pretrained(model_id, torch_dtype=torch.bfloat16) +pipe = pipe.to("cuda") + +output = pipe( + prompt="A beautiful sunset over mountains", + num_inference_steps=16, # <--- Model is distilled in 16 steps + guidance_scale=1.0, # <--- no CFG +).frames[0] + +export_to_video(output, "output.mp4", fps=24, quality=9) +``` + + +## Citation +```bibtex +@misc{kandinsky2025, + author = {Alexey Letunovskiy and Maria Kovaleva and Ivan Kirillov and Lev Novitskiy and Denis Koposov and + Dmitrii Mikhailov and Anna Averchenkova and Andrey Shutkin and Julia Agafonova and Olga Kim and + Anastasiia Kargapoltseva and Nikita Kiselev and Vladimir Arkhipkin and Vladimir Korviakov and + Nikolai Gerasimenko and Denis Parkhomenko and Anna Dmitrienko and Anastasia Maltseva and + Kirill Chernyshev and Ilia Vasiliev and Viacheslav Vasilev and Vladimir Polovnikov and + Yury Kolabushin and Alexander Belykh and Mikhail Mamaev and Anastasia Aliaskina and + Tatiana Nikulina and Polina Gavrilova and Denis Dimitrov}, + title = {Kandinsky 5.0: A family of diffusion models for Video & Image generation}, + howpublished = {\url{https://github.com/ai-forever/Kandinsky-5}}, + year = 2025 +} +``` diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky_v22.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky_v22.md new file mode 100644 index 0000000000000000000000000000000000000000..0e0ed80db61c584d2f9ea5217975aa5974a916fc --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kandinsky_v22.md @@ -0,0 +1,86 @@ + + +# Kandinsky 2.2 + +Kandinsky 2.2 is created by [Arseniy Shakhmatov](https://github.com/cene555), [Anton Razzhigaev](https://github.com/razzant), [Aleksandr Nikolich](https://github.com/AlexWortega), [Vladimir Arkhipkin](https://github.com/oriBetelgeuse), [Igor Pavlov](https://github.com/boomb0om), [Andrey Kuznetsov](https://github.com/kuznetsoffandrey), and [Denis Dimitrov](https://github.com/denndimitrov). + +The description from it's GitHub page is: + +*Kandinsky 2.2 brings substantial improvements upon its predecessor, Kandinsky 2.1, by introducing a new, more powerful image encoder - CLIP-ViT-G and the ControlNet support. The switch to CLIP-ViT-G as the image encoder significantly increases the model's capability to generate more aesthetic pictures and better understand text, thus enhancing the model's overall performance. The addition of the ControlNet mechanism allows the model to effectively control the process of generating images. This leads to more accurate and visually appealing outputs and opens new possibilities for text-guided image manipulation.* + +The original codebase can be found at [ai-forever/Kandinsky-2](https://github.com/ai-forever/Kandinsky-2). + +> [!TIP] +> Check out the [Kandinsky Community](https://huggingface.co/kandinsky-community) organization on the Hub for the official model checkpoints for tasks like text-to-image, image-to-image, and inpainting. + +> [!TIP] +> Make sure to check out the schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## KandinskyV22PriorPipeline + +[[autodoc]] KandinskyV22PriorPipeline + - all + - __call__ + - interpolate + +## KandinskyV22Pipeline + +[[autodoc]] KandinskyV22Pipeline + - all + - __call__ + +## KandinskyV22CombinedPipeline + +[[autodoc]] KandinskyV22CombinedPipeline + - all + - __call__ + +## KandinskyV22ControlnetPipeline + +[[autodoc]] KandinskyV22ControlnetPipeline + - all + - __call__ + +## KandinskyV22PriorEmb2EmbPipeline + +[[autodoc]] KandinskyV22PriorEmb2EmbPipeline + - all + - __call__ + - interpolate + +## KandinskyV22Img2ImgPipeline + +[[autodoc]] KandinskyV22Img2ImgPipeline + - all + - __call__ + +## KandinskyV22Img2ImgCombinedPipeline + +[[autodoc]] KandinskyV22Img2ImgCombinedPipeline + - all + - __call__ + +## KandinskyV22ControlnetImg2ImgPipeline + +[[autodoc]] KandinskyV22ControlnetImg2ImgPipeline + - all + - __call__ + +## KandinskyV22InpaintPipeline + +[[autodoc]] KandinskyV22InpaintPipeline + - all + - __call__ + +## KandinskyV22InpaintCombinedPipeline + +[[autodoc]] KandinskyV22InpaintCombinedPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kolors.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kolors.md new file mode 100644 index 0000000000000000000000000000000000000000..b4c83fe134f5deedf1dbf70fb1627ebb5739b800 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/kolors.md @@ -0,0 +1,114 @@ + + +# Kolors: Effective Training of Diffusion Model for Photorealistic Text-to-Image Synthesis + +
+ LoRA + MPS +
+ +![](https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/kolors/kolors_header_collage.png) + +Kolors is a large-scale text-to-image generation model based on latent diffusion, developed by [the Kuaishou Kolors team](https://github.com/Kwai-Kolors/Kolors). Trained on billions of text-image pairs, Kolors exhibits significant advantages over both open-source and closed-source models in visual quality, complex semantic accuracy, and text rendering for both Chinese and English characters. Furthermore, Kolors supports both Chinese and English inputs, demonstrating strong performance in understanding and generating Chinese-specific content. For more details, please refer to this [technical report](https://github.com/Kwai-Kolors/Kolors/blob/master/imgs/Kolors_paper.pdf). + +The abstract from the technical report is: + +*We present Kolors, a latent diffusion model for text-to-image synthesis, characterized by its profound understanding of both English and Chinese, as well as an impressive degree of photorealism. There are three key insights contributing to the development of Kolors. Firstly, unlike large language model T5 used in Imagen and Stable Diffusion 3, Kolors is built upon the General Language Model (GLM), which enhances its comprehension capabilities in both English and Chinese. Moreover, we employ a multimodal large language model to recaption the extensive training dataset for fine-grained text understanding. These strategies significantly improve Kolors’ ability to comprehend intricate semantics, particularly those involving multiple entities, and enable its advanced text rendering capabilities. Secondly, we divide the training of Kolors into two phases: the concept learning phase with broad knowledge and the quality improvement phase with specifically curated high-aesthetic data. Furthermore, we investigate the critical role of the noise schedule and introduce a novel schedule to optimize high-resolution image generation. These strategies collectively enhance the visual appeal of the generated high-resolution images. Lastly, we propose a category-balanced benchmark KolorsPrompts, which serves as a guide for the training and evaluation of Kolors. Consequently, even when employing the commonly used U-Net backbone, Kolors has demonstrated remarkable performance in human evaluations, surpassing the existing open-source models and achieving Midjourney-v6 level performance, especially in terms of visual appeal. We will release the code and weights of Kolors at , and hope that it will benefit future research and applications in the visual generation community.* + +## Usage Example + +```python +import torch + +from diffusers import DPMSolverMultistepScheduler, KolorsPipeline + +pipe = KolorsPipeline.from_pretrained("Kwai-Kolors/Kolors-diffusers", torch_dtype=torch.float16, variant="fp16") +pipe.to("cuda") +pipe.scheduler = DPMSolverMultistepScheduler.from_config(pipe.scheduler.config, use_karras_sigmas=True) + +image = pipe( + prompt='一张瓢虫的照片，微距，变焦，高质量，电影，拿着一个牌子，写着"可图"', + negative_prompt="", + guidance_scale=6.5, + num_inference_steps=25, +).images[0] + +image.save("kolors_sample.png") +``` + +### IP Adapter + +Kolors needs a different IP Adapter to work, and it uses [Openai-CLIP-336](https://huggingface.co/openai/clip-vit-large-patch14-336) as an image encoder. + +> [!TIP] +> Using an IP Adapter with Kolors requires more than 24GB of VRAM. To use it, we recommend using [`~DiffusionPipeline.enable_model_cpu_offload`] on consumer GPUs. + +> [!TIP] +> While Kolors is integrated in Diffusers, you need to load the image encoder from a revision to use the safetensor files. You can still use the main branch of the original repository if you're comfortable loading pickle checkpoints. + +```python +import torch +from transformers import CLIPVisionModelWithProjection + +from diffusers import DPMSolverMultistepScheduler, KolorsPipeline +from diffusers.utils import load_image + +image_encoder = CLIPVisionModelWithProjection.from_pretrained( + "Kwai-Kolors/Kolors-IP-Adapter-Plus", + subfolder="image_encoder", + low_cpu_mem_usage=True, + torch_dtype=torch.float16, + revision="refs/pr/4", +) + +pipe = KolorsPipeline.from_pretrained( + "Kwai-Kolors/Kolors-diffusers", image_encoder=image_encoder, torch_dtype=torch.float16, variant="fp16" +) +pipe.scheduler = DPMSolverMultistepScheduler.from_config(pipe.scheduler.config, use_karras_sigmas=True) + +pipe.load_ip_adapter( + "Kwai-Kolors/Kolors-IP-Adapter-Plus", + subfolder="", + weight_name="ip_adapter_plus_general.safetensors", + revision="refs/pr/4", + image_encoder_folder=None, +) +pipe.enable_model_cpu_offload() + +ipa_image = load_image("https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/kolors/cat_square.png") + +image = pipe( + prompt="best quality, high quality", + negative_prompt="", + guidance_scale=6.5, + num_inference_steps=25, + ip_adapter_image=ipa_image, +).images[0] + +image.save("kolors_ipa_sample.png") +``` + +## KolorsPipeline + +[[autodoc]] KolorsPipeline + +- all +- __call__ + +## KolorsImg2ImgPipeline + +[[autodoc]] KolorsImg2ImgPipeline + +- all +- __call__ + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latent_consistency_models.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latent_consistency_models.md new file mode 100644 index 0000000000000000000000000000000000000000..54e81fbe25190e9d7a707ce882577a9a49b95fab --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latent_consistency_models.md @@ -0,0 +1,56 @@ + + +# Latent Consistency Models + +
+ LoRA +
+ +Latent Consistency Models (LCMs) were proposed in [Latent Consistency Models: Synthesizing High-Resolution Images with Few-Step Inference](https://huggingface.co/papers/2310.04378) by Simian Luo, Yiqin Tan, Longbo Huang, Jian Li, and Hang Zhao. + +The abstract of the paper is as follows: + +*Latent Diffusion models (LDMs) have achieved remarkable results in synthesizing high-resolution images. However, the iterative sampling process is computationally intensive and leads to slow generation. Inspired by Consistency Models (song et al.), we propose Latent Consistency Models (LCMs), enabling swift inference with minimal steps on any pre-trained LDMs, including Stable Diffusion (rombach et al). Viewing the guided reverse diffusion process as solving an augmented probability flow ODE (PF-ODE), LCMs are designed to directly predict the solution of such ODE in latent space, mitigating the need for numerous iterations and allowing rapid, high-fidelity sampling. Efficiently distilled from pre-trained classifier-free guided diffusion models, a high-quality 768 x 768 2~4-step LCM takes only 32 A100 GPU hours for training. Furthermore, we introduce Latent Consistency Fine-tuning (LCF), a novel method that is tailored for fine-tuning LCMs on customized image datasets. Evaluation on the LAION-5B-Aesthetics dataset demonstrates that LCMs achieve state-of-the-art text-to-image generation performance with few-step inference. Project Page: [this https URL](https://latent-consistency-models.github.io/).* + +A demo for the [SimianLuo/LCM_Dreamshaper_v7](https://huggingface.co/SimianLuo/LCM_Dreamshaper_v7) checkpoint can be found [here](https://huggingface.co/spaces/SimianLuo/Latent_Consistency_Model). + +The pipelines were contributed by [luosiallen](https://luosiallen.github.io/), [nagolinc](https://github.com/nagolinc), and [dg845](https://github.com/dg845). + + +## LatentConsistencyModelPipeline + +[[autodoc]] LatentConsistencyModelPipeline + - all + - __call__ + - enable_freeu + - disable_freeu + - enable_vae_slicing + - disable_vae_slicing + - enable_vae_tiling + - disable_vae_tiling + +## LatentConsistencyModelImg2ImgPipeline + +[[autodoc]] LatentConsistencyModelImg2ImgPipeline + - all + - __call__ + - enable_freeu + - disable_freeu + - enable_vae_slicing + - disable_vae_slicing + - enable_vae_tiling + - disable_vae_tiling + +## StableDiffusionPipelineOutput + +[[autodoc]] pipelines.stable_diffusion.StableDiffusionPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latent_diffusion.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latent_diffusion.md new file mode 100644 index 0000000000000000000000000000000000000000..cefed90e86a5ef43abe9a7ee9b0da065632b1ced --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latent_diffusion.md @@ -0,0 +1,37 @@ + + +# Latent Diffusion + +Latent Diffusion was proposed in [High-Resolution Image Synthesis with Latent Diffusion Models](https://huggingface.co/papers/2112.10752) by Robin Rombach, Andreas Blattmann, Dominik Lorenz, Patrick Esser, Björn Ommer. + +The abstract from the paper is: + +*By decomposing the image formation process into a sequential application of denoising autoencoders, diffusion models (DMs) achieve state-of-the-art synthesis results on image data and beyond. Additionally, their formulation allows for a guiding mechanism to control the image generation process without retraining. However, since these models typically operate directly in pixel space, optimization of powerful DMs often consumes hundreds of GPU days and inference is expensive due to sequential evaluations. To enable DM training on limited computational resources while retaining their quality and flexibility, we apply them in the latent space of powerful pretrained autoencoders. In contrast to previous work, training diffusion models on such a representation allows for the first time to reach a near-optimal point between complexity reduction and detail preservation, greatly boosting visual fidelity. By introducing cross-attention layers into the model architecture, we turn diffusion models into powerful and flexible generators for general conditioning inputs such as text or bounding boxes and high-resolution synthesis becomes possible in a convolutional manner. Our latent diffusion models (LDMs) achieve a new state of the art for image inpainting and highly competitive performance on various tasks, including unconditional image generation, semantic scene synthesis, and super-resolution, while significantly reducing computational requirements compared to pixel-based DMs.* + +The original codebase can be found at [CompVis/latent-diffusion](https://github.com/CompVis/latent-diffusion). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## LDMTextToImagePipeline +[[autodoc]] LDMTextToImagePipeline + - all + - __call__ + +## LDMSuperResolutionPipeline +[[autodoc]] LDMSuperResolutionPipeline + - all + - __call__ + +## ImagePipelineOutput +[[autodoc]] pipelines.ImagePipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latte.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latte.md new file mode 100644 index 0000000000000000000000000000000000000000..c8438c668a44a9664d7e79cc54207020d6527c4a --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/latte.md @@ -0,0 +1,115 @@ + + +# Latte + +![latte text-to-video](https://github.com/Vchitect/Latte/blob/52bc0029899babbd6e9250384c83d8ed2670ff7a/visuals/latte.gif?raw=true) + +[Latte: Latent Diffusion Transformer for Video Generation](https://huggingface.co/papers/2401.03048) from Monash University, Shanghai AI Lab, Nanjing University, and Nanyang Technological University. + +The abstract from the paper is: + +*We propose a novel Latent Diffusion Transformer, namely Latte, for video generation. Latte first extracts spatio-temporal tokens from input videos and then adopts a series of Transformer blocks to model video distribution in the latent space. In order to model a substantial number of tokens extracted from videos, four efficient variants are introduced from the perspective of decomposing the spatial and temporal dimensions of input videos. To improve the quality of generated videos, we determine the best practices of Latte through rigorous experimental analysis, including video clip patch embedding, model variants, timestep-class information injection, temporal positional embedding, and learning strategies. Our comprehensive evaluation demonstrates that Latte achieves state-of-the-art performance across four standard video generation datasets, i.e., FaceForensics, SkyTimelapse, UCF101, and Taichi-HD. In addition, we extend Latte to text-to-video generation (T2V) task, where Latte achieves comparable results compared to recent T2V models. We strongly believe that Latte provides valuable insights for future research on incorporating Transformers into diffusion models for video generation.* + +**Highlights**: Latte is a latent diffusion transformer proposed as a backbone for modeling different modalities (trained for text-to-video generation here). It achieves state-of-the-art performance across four standard video benchmarks - [FaceForensics](https://huggingface.co/papers/1803.09179), [SkyTimelapse](https://huggingface.co/papers/1709.07592), [UCF101](https://huggingface.co/papers/1212.0402) and [Taichi-HD](https://huggingface.co/papers/2003.00196). To prepare and download the datasets for evaluation, please refer to [this https URL](https://github.com/Vchitect/Latte/blob/main/docs/datasets_evaluation.md). + +This pipeline was contributed by [maxin-cn](https://github.com/maxin-cn). The original codebase can be found [here](https://github.com/Vchitect/Latte). The original weights can be found under [hf.co/maxin-cn](https://huggingface.co/maxin-cn). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +### Inference + +Use [`torch.compile`](https://huggingface.co/docs/diffusers/main/en/tutorials/fast_diffusion#torchcompile) to reduce the inference latency. + +First, load the pipeline: + +```python +import torch +from diffusers import LattePipeline + +pipeline = LattePipeline.from_pretrained( + "maxin-cn/Latte-1", torch_dtype=torch.float16 +).to("cuda") +``` + +Then change the memory layout of the pipelines `transformer` and `vae` components to `torch.channels-last`: + +```python +pipeline.transformer.to(memory_format=torch.channels_last) +pipeline.vae.to(memory_format=torch.channels_last) +``` + +Finally, compile the components and run inference: + +```python +pipeline.transformer = torch.compile(pipeline.transformer) +pipeline.vae.decode = torch.compile(pipeline.vae.decode) + +video = pipeline(prompt="A dog wearing sunglasses floating in space, surreal, nebulae in background").frames[0] +``` + +The [benchmark](https://gist.github.com/a-r-r-o-w/4e1694ca46374793c0361d740a99ff19) results on an 80GB A100 machine are: + +``` +Without torch.compile(): Average inference time: 16.246 seconds. +With torch.compile(): Average inference time: 14.573 seconds. +``` + +## Quantization + +Quantization helps reduce the memory requirements of very large models by storing model weights in a lower precision data type. However, quantization may have varying impact on video quality depending on the video model. + +Refer to the [Quantization](../../quantization/overview) overview to learn more about supported quantization backends and selecting a quantization backend that supports your use case. The example below demonstrates how to load a quantized [`LattePipeline`] for inference with bitsandbytes. + +```py +import torch +from diffusers import BitsAndBytesConfig as DiffusersBitsAndBytesConfig, LatteTransformer3DModel, LattePipeline +from diffusers.utils import export_to_gif +from transformers import BitsAndBytesConfig as BitsAndBytesConfig, T5EncoderModel + +quant_config = BitsAndBytesConfig(load_in_8bit=True) +text_encoder_8bit = T5EncoderModel.from_pretrained( + "maxin-cn/Latte-1", + subfolder="text_encoder", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +quant_config = DiffusersBitsAndBytesConfig(load_in_8bit=True) +transformer_8bit = LatteTransformer3DModel.from_pretrained( + "maxin-cn/Latte-1", + subfolder="transformer", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +pipeline = LattePipeline.from_pretrained( + "maxin-cn/Latte-1", + text_encoder=text_encoder_8bit, + transformer=transformer_8bit, + torch_dtype=torch.float16, + device_map="balanced", +) + +prompt = "A small cactus with a happy face in the Sahara desert." +video = pipeline(prompt).frames[0] +export_to_gif(video, "latte.gif") +``` + +## LattePipeline + +[[autodoc]] LattePipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ledits_pp.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ledits_pp.md new file mode 100644 index 0000000000000000000000000000000000000000..103bcf37989073050786b280c73fca59132f25ee --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ledits_pp.md @@ -0,0 +1,54 @@ + + +# LEDITS++ + +
+ LoRA +
+ +LEDITS++ was proposed in [LEDITS++: Limitless Image Editing using Text-to-Image Models](https://huggingface.co/papers/2311.16711) by Manuel Brack, Felix Friedrich, Katharina Kornmeier, Linoy Tsaban, Patrick Schramowski, Kristian Kersting, Apolinário Passos. + +The abstract from the paper is: + +*Text-to-image diffusion models have recently received increasing interest for their astonishing ability to produce high-fidelity images from solely text inputs. Subsequent research efforts aim to exploit and apply their capabilities to real image editing. However, existing image-to-image methods are often inefficient, imprecise, and of limited versatility. They either require time-consuming fine-tuning, deviate unnecessarily strongly from the input image, and/or lack support for multiple, simultaneous edits. To address these issues, we introduce LEDITS++, an efficient yet versatile and precise textual image manipulation technique. LEDITS++'s novel inversion approach requires no tuning nor optimization and produces high-fidelity results with a few diffusion steps. Second, our methodology supports multiple simultaneous edits and is architecture-agnostic. Third, we use a novel implicit masking technique that limits changes to relevant image regions. We propose the novel TEdBench++ benchmark as part of our exhaustive evaluation. Our results demonstrate the capabilities of LEDITS++ and its improvements over previous methods. The project page is available at https://leditsplusplus-project.static.hf.space .* + +> [!TIP] +> You can find additional information about LEDITS++ on the [project page](https://leditsplusplus-project.static.hf.space/index.html) and try it out in a [demo](https://huggingface.co/spaces/editing-images/leditsplusplus). + +> [!WARNING] +> Due to some backward compatibility issues with the current diffusers implementation of [`~schedulers.DPMSolverMultistepScheduler`] this implementation of LEdits++ can no longer guarantee perfect inversion. +> This issue is unlikely to have any noticeable effects on applied use-cases. However, we provide an alternative implementation that guarantees perfect inversion in a dedicated [GitHub repo](https://github.com/ml-research/ledits_pp). + +We provide two distinct pipelines based on different pre-trained models. + +## LEditsPPPipelineStableDiffusion +[[autodoc]] pipelines.ledits_pp.LEditsPPPipelineStableDiffusion + - all + - __call__ + - invert + +## LEditsPPPipelineStableDiffusionXL +[[autodoc]] pipelines.ledits_pp.LEditsPPPipelineStableDiffusionXL + - all + - __call__ + - invert + + + +## LEditsPPDiffusionPipelineOutput +[[autodoc]] pipelines.ledits_pp.pipeline_output.LEditsPPDiffusionPipelineOutput + - all + +## LEditsPPInversionPipelineOutput +[[autodoc]] pipelines.ledits_pp.pipeline_output.LEditsPPInversionPipelineOutput + - all diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ltx_video.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ltx_video.md new file mode 100644 index 0000000000000000000000000000000000000000..940144538a3574852922ab66eab693a96ca41f4e --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/ltx_video.md @@ -0,0 +1,503 @@ + + +
+
+ + LoRA + + MPS +
+
+ +# LTX-Video + +[LTX-Video](https://huggingface.co/Lightricks/LTX-Video) is a diffusion transformer designed for fast and real-time generation of high-resolution videos from text and images. The main feature of LTX-Video is the Video-VAE. The Video-VAE has a higher pixel to latent compression ratio (1:192) which enables more efficient video data processing and faster generation speed. To support and prevent finer details from being lost during generation, the Video-VAE decoder performs the latent to pixel conversion *and* the last denoising step. + +You can find all the original LTX-Video checkpoints under the [Lightricks](https://huggingface.co/Lightricks) organization. + +> [!TIP] +> Click on the LTX-Video models in the right sidebar for more examples of other video generation tasks. + +The example below demonstrates how to generate a video optimized for memory or inference speed. + + + + +Refer to the [Reduce memory usage](../../optimization/memory) guide for more details about the various memory saving techniques. + +The LTX-Video model below requires ~10GB of VRAM. + +```py +import torch +from diffusers import LTXPipeline, AutoModel +from diffusers.hooks import apply_group_offloading +from diffusers.utils import export_to_video + +# fp8 layerwise weight-casting +transformer = AutoModel.from_pretrained( + "Lightricks/LTX-Video", + subfolder="transformer", + torch_dtype=torch.bfloat16 +) +transformer.enable_layerwise_casting( + storage_dtype=torch.float8_e4m3fn, compute_dtype=torch.bfloat16 +) + +pipeline = LTXPipeline.from_pretrained("Lightricks/LTX-Video", transformer=transformer, torch_dtype=torch.bfloat16) + +# group-offloading +onload_device = torch.device("cuda") +offload_device = torch.device("cpu") +pipeline.transformer.enable_group_offload(onload_device=onload_device, offload_device=offload_device, offload_type="leaf_level", use_stream=True) +apply_group_offloading(pipeline.text_encoder, onload_device=onload_device, offload_type="block_level", num_blocks_per_group=2) +apply_group_offloading(pipeline.vae, onload_device=onload_device, offload_type="leaf_level") + +prompt = """ +A woman with long brown hair and light skin smiles at another woman with long blonde hair. +The woman with brown hair wears a black jacket and has a small, barely noticeable mole on her right cheek. +The camera angle is a close-up, focused on the woman with brown hair's face. The lighting is warm and +natural, likely from the setting sun, casting a soft glow on the scene. The scene appears to be real-life footage +""" +negative_prompt = "worst quality, inconsistent motion, blurry, jittery, distorted" + +video = pipeline( + prompt=prompt, + negative_prompt=negative_prompt, + width=768, + height=512, + num_frames=161, + decode_timestep=0.03, + decode_noise_scale=0.025, + num_inference_steps=50, +).frames[0] +export_to_video(video, "output.mp4", fps=24) +``` + + + + +[Compilation](../../optimization/fp16#torchcompile) is slow the first time but subsequent calls to the pipeline are faster. [Caching](../../optimization/cache) may also speed up inference by storing and reusing intermediate outputs. + +```py +import torch +from diffusers import LTXPipeline +from diffusers.utils import export_to_video + +pipeline = LTXPipeline.from_pretrained( + "Lightricks/LTX-Video", torch_dtype=torch.bfloat16 +) + +# torch.compile +pipeline.transformer.to(memory_format=torch.channels_last) +pipeline.transformer = torch.compile( + pipeline.transformer, mode="max-autotune", fullgraph=True +) + +prompt = """ +A woman with long brown hair and light skin smiles at another woman with long blonde hair. +The woman with brown hair wears a black jacket and has a small, barely noticeable mole on her right cheek. +The camera angle is a close-up, focused on the woman with brown hair's face. The lighting is warm and +natural, likely from the setting sun, casting a soft glow on the scene. The scene appears to be real-life footage +""" +negative_prompt = "worst quality, inconsistent motion, blurry, jittery, distorted" + +video = pipeline( + prompt=prompt, + negative_prompt=negative_prompt, + width=768, + height=512, + num_frames=161, + decode_timestep=0.03, + decode_noise_scale=0.025, + num_inference_steps=50, +).frames[0] +export_to_video(video, "output.mp4", fps=24) +``` + + + + +## Notes + +- Refer to the following recommended settings for generation from the [LTX-Video](https://github.com/Lightricks/LTX-Video) repository. + + - The recommended dtype for the transformer, VAE, and text encoder is `torch.bfloat16`. The VAE and text encoder can also be `torch.float32` or `torch.float16`. + - For guidance-distilled variants of LTX-Video, set `guidance_scale` to `1.0`. The `guidance_scale` for any other model should be set higher, like `5.0`, for good generation quality. + - For timestep-aware VAE variants (LTX-Video 0.9.1 and above), set `decode_timestep` to `0.05` and `image_cond_noise_scale` to `0.025`. + - For variants that support interpolation between multiple conditioning images and videos (LTX-Video 0.9.5 and above), use similar images and videos for the best results. Divergence from the conditioning inputs may lead to abrupt transitionts in the generated video. + +- LTX-Video 0.9.7 includes a spatial latent upscaler and a 13B parameter transformer. During inference, a low resolution video is quickly generated first and then upscaled and refined. + +
+ Show example code + + ```py + import torch + from diffusers import LTXConditionPipeline, LTXLatentUpsamplePipeline + from diffusers.pipelines.ltx.pipeline_ltx_condition import LTXVideoCondition + from diffusers.utils import export_to_video, load_video + + pipeline = LTXConditionPipeline.from_pretrained("Lightricks/LTX-Video-0.9.7-dev", torch_dtype=torch.bfloat16) + pipeline_upsample = LTXLatentUpsamplePipeline.from_pretrained("Lightricks/ltxv-spatial-upscaler-0.9.7", vae=pipeline.vae, torch_dtype=torch.bfloat16) + pipeline.to("cuda") + pipe_upsample.to("cuda") + pipeline.vae.enable_tiling() + + def round_to_nearest_resolution_acceptable_by_vae(height, width): + height = height - (height % pipeline.vae_temporal_compression_ratio) + width = width - (width % pipeline.vae_temporal_compression_ratio) + return height, width + + video = load_video( + "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/cosmos/cosmos-video2world-input-vid.mp4" + )[:21] # only use the first 21 frames as conditioning + condition1 = LTXVideoCondition(video=video, frame_index=0) + + prompt = """ + The video depicts a winding mountain road covered in snow, with a single vehicle + traveling along it. The road is flanked by steep, rocky cliffs and sparse vegetation. + The landscape is characterized by rugged terrain and a river visible in the distance. + The scene captures the solitude and beauty of a winter drive through a mountainous region. + """ + negative_prompt = "worst quality, inconsistent motion, blurry, jittery, distorted" + expected_height, expected_width = 768, 1152 + downscale_factor = 2 / 3 + num_frames = 161 + + # 1. Generate video at smaller resolution + # Text-only conditioning is also supported without the need to pass `conditions` + downscaled_height, downscaled_width = int(expected_height * downscale_factor), int(expected_width * downscale_factor) + downscaled_height, downscaled_width = round_to_nearest_resolution_acceptable_by_vae(downscaled_height, downscaled_width) + latents = pipeline( + conditions=[condition1], + prompt=prompt, + negative_prompt=negative_prompt, + width=downscaled_width, + height=downscaled_height, + num_frames=num_frames, + num_inference_steps=30, + decode_timestep=0.05, + decode_noise_scale=0.025, + image_cond_noise_scale=0.0, + guidance_scale=5.0, + guidance_rescale=0.7, + generator=torch.Generator().manual_seed(0), + output_type="latent", + ).frames + + # 2. Upscale generated video using latent upsampler with fewer inference steps + # The available latent upsampler upscales the height/width by 2x + upscaled_height, upscaled_width = downscaled_height * 2, downscaled_width * 2 + upscaled_latents = pipe_upsample( + latents=latents, + output_type="latent" + ).frames + + # 3. Denoise the upscaled video with few steps to improve texture (optional, but recommended) + video = pipeline( + conditions=[condition1], + prompt=prompt, + negative_prompt=negative_prompt, + width=upscaled_width, + height=upscaled_height, + num_frames=num_frames, + denoise_strength=0.4, # Effectively, 4 inference steps out of 10 + num_inference_steps=10, + latents=upscaled_latents, + decode_timestep=0.05, + decode_noise_scale=0.025, + image_cond_noise_scale=0.0, + guidance_scale=5.0, + guidance_rescale=0.7, + generator=torch.Generator().manual_seed(0), + output_type="pil", + ).frames[0] + + # 4. Downscale the video to the expected resolution + video = [frame.resize((expected_width, expected_height)) for frame in video] + + export_to_video(video, "output.mp4", fps=24) + ``` + +
+ +- LTX-Video 0.9.7 distilled model is guidance and timestep-distilled to speedup generation. It requires `guidance_scale` to be set to `1.0` and `num_inference_steps` should be set between `4` and `10` for good generation quality. You should also use the following custom timesteps for the best results. + + - Base model inference to prepare for upscaling: `[1000, 993, 987, 981, 975, 909, 725, 0.03]`. + - Upscaling: `[1000, 909, 725, 421, 0]`. + +
+ Show example code + + ```py + import torch + from diffusers import LTXConditionPipeline, LTXLatentUpsamplePipeline + from diffusers.pipelines.ltx.pipeline_ltx_condition import LTXVideoCondition + from diffusers.utils import export_to_video, load_video + + pipeline = LTXConditionPipeline.from_pretrained("Lightricks/LTX-Video-0.9.7-distilled", torch_dtype=torch.bfloat16) + pipe_upsample = LTXLatentUpsamplePipeline.from_pretrained("Lightricks/ltxv-spatial-upscaler-0.9.7", vae=pipeline.vae, torch_dtype=torch.bfloat16) + pipeline.to("cuda") + pipe_upsample.to("cuda") + pipeline.vae.enable_tiling() + + def round_to_nearest_resolution_acceptable_by_vae(height, width): + height = height - (height % pipeline.vae_spatial_compression_ratio) + width = width - (width % pipeline.vae_spatial_compression_ratio) + return height, width + + prompt = """ + artistic anatomical 3d render, utlra quality, human half full male body with transparent + skin revealing structure instead of organs, muscular, intricate creative patterns, + monochromatic with backlighting, lightning mesh, scientific concept art, blending biology + with botany, surreal and ethereal quality, unreal engine 5, ray tracing, ultra realistic, + 16K UHD, rich details. camera zooms out in a rotating fashion + """ + negative_prompt = "worst quality, inconsistent motion, blurry, jittery, distorted" + expected_height, expected_width = 768, 1152 + downscale_factor = 2 / 3 + num_frames = 161 + + # 1. Generate video at smaller resolution + downscaled_height, downscaled_width = int(expected_height * downscale_factor), int(expected_width * downscale_factor) + downscaled_height, downscaled_width = round_to_nearest_resolution_acceptable_by_vae(downscaled_height, downscaled_width) + latents = pipeline( + prompt=prompt, + negative_prompt=negative_prompt, + width=downscaled_width, + height=downscaled_height, + num_frames=num_frames, + timesteps=[1000, 993, 987, 981, 975, 909, 725, 0.03], + decode_timestep=0.05, + decode_noise_scale=0.025, + image_cond_noise_scale=0.0, + guidance_scale=1.0, + guidance_rescale=0.7, + generator=torch.Generator().manual_seed(0), + output_type="latent", + ).frames + + # 2. Upscale generated video using latent upsampler with fewer inference steps + # The available latent upsampler upscales the height/width by 2x + upscaled_height, upscaled_width = downscaled_height * 2, downscaled_width * 2 + upscaled_latents = pipe_upsample( + latents=latents, + adain_factor=1.0, + output_type="latent" + ).frames + + # 3. Denoise the upscaled video with few steps to improve texture (optional, but recommended) + video = pipeline( + prompt=prompt, + negative_prompt=negative_prompt, + width=upscaled_width, + height=upscaled_height, + num_frames=num_frames, + denoise_strength=0.999, # Effectively, 4 inference steps out of 5 + timesteps=[1000, 909, 725, 421, 0], + latents=upscaled_latents, + decode_timestep=0.05, + decode_noise_scale=0.025, + image_cond_noise_scale=0.0, + guidance_scale=1.0, + guidance_rescale=0.7, + generator=torch.Generator().manual_seed(0), + output_type="pil", + ).frames[0] + + # 4. Downscale the video to the expected resolution + video = [frame.resize((expected_width, expected_height)) for frame in video] + + export_to_video(video, "output.mp4", fps=24) + ``` + +
+ +- LTX-Video 0.9.8 distilled model is similar to the 0.9.7 variant. It is guidance and timestep-distilled, and similar inference code can be used as above. An improvement of this version is that it supports generating very long videos. Additionally, it supports using tone mapping to improve the quality of the generated video using the `tone_map_compression_ratio` parameter. The default value of `0.6` is recommended. + +
+ Show example code + + ```python + import torch + from diffusers import LTXConditionPipeline, LTXLatentUpsamplePipeline + from diffusers.pipelines.ltx.pipeline_ltx_condition import LTXVideoCondition + from diffusers.pipelines.ltx.modeling_latent_upsampler import LTXLatentUpsamplerModel + from diffusers.utils import export_to_video, load_video + + pipeline = LTXConditionPipeline.from_pretrained("Lightricks/LTX-Video-0.9.8-13B-distilled", torch_dtype=torch.bfloat16) + # TODO: Update the checkpoint here once updated in LTX org + upsampler = LTXLatentUpsamplerModel.from_pretrained("a-r-r-o-w/LTX-0.9.8-Latent-Upsampler", torch_dtype=torch.bfloat16) + pipe_upsample = LTXLatentUpsamplePipeline(vae=pipeline.vae, latent_upsampler=upsampler).to(torch.bfloat16) + pipeline.to("cuda") + pipe_upsample.to("cuda") + pipeline.vae.enable_tiling() + + def round_to_nearest_resolution_acceptable_by_vae(height, width): + height = height - (height % pipeline.vae_spatial_compression_ratio) + width = width - (width % pipeline.vae_spatial_compression_ratio) + return height, width + + prompt = """The camera pans over a snow-covered mountain range, revealing a vast expanse of snow-capped peaks and valleys.The mountains are covered in a thick layer of snow, with some areas appearing almost white while others have a slightly darker, almost grayish hue. The peaks are jagged and irregular, with some rising sharply into the sky while others are more rounded. The valleys are deep and narrow, with steep slopes that are also covered in snow. The trees in the foreground are mostly bare, with only a few leaves remaining on their branches. The sky is overcast, with thick clouds obscuring the sun. The overall impression is one of peace and tranquility, with the snow-covered mountains standing as a testament to the power and beauty of nature.""" + # prompt = """A woman walks away from a white Jeep parked on a city street at night, then ascends a staircase and knocks on a door. The woman, wearing a dark jacket and jeans, walks away from the Jeep parked on the left side of the street, her back to the camera; she walks at a steady pace, her arms swinging slightly by her sides; the street is dimly lit, with streetlights casting pools of light on the wet pavement; a man in a dark jacket and jeans walks past the Jeep in the opposite direction; the camera follows the woman from behind as she walks up a set of stairs towards a building with a green door; she reaches the top of the stairs and turns left, continuing to walk towards the building; she reaches the door and knocks on it with her right hand; the camera remains stationary, focused on the doorway; the scene is captured in real-life footage.""" + negative_prompt = "bright colors, symbols, graffiti, watermarks, worst quality, inconsistent motion, blurry, jittery, distorted" + expected_height, expected_width = 480, 832 + downscale_factor = 2 / 3 + # num_frames = 161 + num_frames = 361 + + # 1. Generate video at smaller resolution + downscaled_height, downscaled_width = int(expected_height * downscale_factor), int(expected_width * downscale_factor) + downscaled_height, downscaled_width = round_to_nearest_resolution_acceptable_by_vae(downscaled_height, downscaled_width) + latents = pipeline( + prompt=prompt, + negative_prompt=negative_prompt, + width=downscaled_width, + height=downscaled_height, + num_frames=num_frames, + timesteps=[1000, 993, 987, 981, 975, 909, 725, 0.03], + decode_timestep=0.05, + decode_noise_scale=0.025, + image_cond_noise_scale=0.0, + guidance_scale=1.0, + guidance_rescale=0.7, + generator=torch.Generator().manual_seed(0), + output_type="latent", + ).frames + + # 2. Upscale generated video using latent upsampler with fewer inference steps + # The available latent upsampler upscales the height/width by 2x + upscaled_height, upscaled_width = downscaled_height * 2, downscaled_width * 2 + upscaled_latents = pipe_upsample( + latents=latents, + adain_factor=1.0, + tone_map_compression_ratio=0.6, + output_type="latent" + ).frames + + # 3. Denoise the upscaled video with few steps to improve texture (optional, but recommended) + video = pipeline( + prompt=prompt, + negative_prompt=negative_prompt, + width=upscaled_width, + height=upscaled_height, + num_frames=num_frames, + denoise_strength=0.999, # Effectively, 4 inference steps out of 5 + timesteps=[1000, 909, 725, 421, 0], + latents=upscaled_latents, + decode_timestep=0.05, + decode_noise_scale=0.025, + image_cond_noise_scale=0.0, + guidance_scale=1.0, + guidance_rescale=0.7, + generator=torch.Generator().manual_seed(0), + output_type="pil", + ).frames[0] + + # 4. Downscale the video to the expected resolution + video = [frame.resize((expected_width, expected_height)) for frame in video] + + export_to_video(video, "output.mp4", fps=24) + ``` + +
+ +- LTX-Video supports LoRAs with [`~loaders.LTXVideoLoraLoaderMixin.load_lora_weights`]. + +
+ Show example code + + ```py + import torch + from diffusers import LTXConditionPipeline + from diffusers.utils import export_to_video, load_image + + pipeline = LTXConditionPipeline.from_pretrained( + "Lightricks/LTX-Video-0.9.5", torch_dtype=torch.bfloat16 + ) + + pipeline.load_lora_weights("Lightricks/LTX-Video-Cakeify-LoRA", adapter_name="cakeify") + pipeline.set_adapters("cakeify") + + # use "CAKEIFY" to trigger the LoRA + prompt = "CAKEIFY a person using a knife to cut a cake shaped like a Pikachu plushie" + image = load_image("https://huggingface.co/Lightricks/LTX-Video-Cakeify-LoRA/resolve/main/assets/images/pikachu.png") + + video = pipeline( + prompt=prompt, + image=image, + width=576, + height=576, + num_frames=161, + decode_timestep=0.03, + decode_noise_scale=0.025, + num_inference_steps=50, + ).frames[0] + export_to_video(video, "output.mp4", fps=26) + ``` + +
+ +- LTX-Video supports loading from single files, such as [GGUF checkpoints](../../quantization/gguf), with [`loaders.FromOriginalModelMixin.from_single_file`] or [`loaders.FromSingleFileMixin.from_single_file`]. + +
+ Show example code + + ```py + import torch + from diffusers.utils import export_to_video + from diffusers import LTXPipeline, AutoModel, GGUFQuantizationConfig + + transformer = AutoModel.from_single_file( + "https://huggingface.co/city96/LTX-Video-gguf/blob/main/ltx-video-2b-v0.9-Q3_K_S.gguf" + quantization_config=GGUFQuantizationConfig(compute_dtype=torch.bfloat16), + torch_dtype=torch.bfloat16 + ) + pipeline = LTXPipeline.from_pretrained( + "Lightricks/LTX-Video", + transformer=transformer, + torch_dtype=torch.bfloat16 + ) + ``` + +
+ +## LTXPipeline + +[[autodoc]] LTXPipeline + - all + - __call__ + +## LTXImageToVideoPipeline + +[[autodoc]] LTXImageToVideoPipeline + - all + - __call__ + +## LTXConditionPipeline + +[[autodoc]] LTXConditionPipeline + - all + - __call__ + +## LTXLatentUpsamplePipeline + +[[autodoc]] LTXLatentUpsamplePipeline + - all + - __call__ + +## LTXPipelineOutput + +[[autodoc]] pipelines.ltx.pipeline_output.LTXPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/lumina.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/lumina.md new file mode 100644 index 0000000000000000000000000000000000000000..0a236d213d6ce24ddd5af35e877d96e2b2da83d9 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/lumina.md @@ -0,0 +1,127 @@ + + +# Lumina-T2X +![concepts](https://github.com/Alpha-VLLM/Lumina-T2X/assets/54879512/9f52eabb-07dc-4881-8257-6d8a5f2a0a5a) + +[Lumina-Next : Making Lumina-T2X Stronger and Faster with Next-DiT](https://github.com/Alpha-VLLM/Lumina-T2X/blob/main/assets/lumina-next.pdf) from Alpha-VLLM, OpenGVLab, Shanghai AI Laboratory. + +The abstract from the paper is: + +*Lumina-T2X is a nascent family of Flow-based Large Diffusion Transformers (Flag-DiT) that establishes a unified framework for transforming noise into various modalities, such as images and videos, conditioned on text instructions. Despite its promising capabilities, Lumina-T2X still encounters challenges including training instability, slow inference, and extrapolation artifacts. In this paper, we present Lumina-Next, an improved version of Lumina-T2X, showcasing stronger generation performance with increased training and inference efficiency. We begin with a comprehensive analysis of the Flag-DiT architecture and identify several suboptimal components, which we address by introducing the Next-DiT architecture with 3D RoPE and sandwich normalizations. To enable better resolution extrapolation, we thoroughly compare different context extrapolation methods applied to text-to-image generation with 3D RoPE, and propose Frequency- and Time-Aware Scaled RoPE tailored for diffusion transformers. Additionally, we introduce a sigmoid time discretization schedule to reduce sampling steps in solving the Flow ODE and the Context Drop method to merge redundant visual tokens for faster network evaluation, effectively boosting the overall sampling speed. Thanks to these improvements, Lumina-Next not only improves the quality and efficiency of basic text-to-image generation but also demonstrates superior resolution extrapolation capabilities and multilingual generation using decoder-based LLMs as the text encoder, all in a zero-shot manner. To further validate Lumina-Next as a versatile generative framework, we instantiate it on diverse tasks including visual recognition, multi-view, audio, music, and point cloud generation, showcasing strong performance across these domains. By releasing all codes and model weights at https://github.com/Alpha-VLLM/Lumina-T2X, we aim to advance the development of next-generation generative AI capable of universal modeling.* + +**Highlights**: Lumina-Next is a next-generation Diffusion Transformer that significantly enhances text-to-image generation, multilingual generation, and multitask performance by introducing the Next-DiT architecture, 3D RoPE, and frequency- and time-aware RoPE, among other improvements. + +Lumina-Next has the following components: +* It improves sampling efficiency with fewer and faster Steps. +* It uses a Next-DiT as a transformer backbone with Sandwichnorm 3D RoPE, and Grouped-Query Attention. +* It uses a Frequency- and Time-Aware Scaled RoPE. + +--- + +[Lumina-T2X: Transforming Text into Any Modality, Resolution, and Duration via Flow-based Large Diffusion Transformers](https://huggingface.co/papers/2405.05945) from Alpha-VLLM, OpenGVLab, Shanghai AI Laboratory. + +The abstract from the paper is: + +*Sora unveils the potential of scaling Diffusion Transformer for generating photorealistic images and videos at arbitrary resolutions, aspect ratios, and durations, yet it still lacks sufficient implementation details. In this technical report, we introduce the Lumina-T2X family - a series of Flow-based Large Diffusion Transformers (Flag-DiT) equipped with zero-initialized attention, as a unified framework designed to transform noise into images, videos, multi-view 3D objects, and audio clips conditioned on text instructions. By tokenizing the latent spatial-temporal space and incorporating learnable placeholders such as [nextline] and [nextframe] tokens, Lumina-T2X seamlessly unifies the representations of different modalities across various spatial-temporal resolutions. This unified approach enables training within a single framework for different modalities and allows for flexible generation of multimodal data at any resolution, aspect ratio, and length during inference. Advanced techniques like RoPE, RMSNorm, and flow matching enhance the stability, flexibility, and scalability of Flag-DiT, enabling models of Lumina-T2X to scale up to 7 billion parameters and extend the context window to 128K tokens. This is particularly beneficial for creating ultra-high-definition images with our Lumina-T2I model and long 720p videos with our Lumina-T2V model. Remarkably, Lumina-T2I, powered by a 5-billion-parameter Flag-DiT, requires only 35% of the training computational costs of a 600-million-parameter naive DiT. Our further comprehensive analysis underscores Lumina-T2X's preliminary capability in resolution extrapolation, high-resolution editing, generating consistent 3D views, and synthesizing videos with seamless transitions. We expect that the open-sourcing of Lumina-T2X will further foster creativity, transparency, and diversity in the generative AI community.* + + +You can find the original codebase at [Alpha-VLLM](https://github.com/Alpha-VLLM/Lumina-T2X) and all the available checkpoints at [Alpha-VLLM Lumina Family](https://huggingface.co/collections/Alpha-VLLM/lumina-family-66423205bedb81171fd0644b). + +**Highlights**: Lumina-T2X supports Any Modality, Resolution, and Duration. + +Lumina-T2X has the following components: +* It uses a Flow-based Large Diffusion Transformer as the backbone +* It supports different any modalities with one backbone and corresponding encoder, decoder. + +This pipeline was contributed by [PommesPeter](https://github.com/PommesPeter). The original codebase can be found [here](https://github.com/Alpha-VLLM/Lumina-T2X). The original weights can be found under [hf.co/Alpha-VLLM](https://huggingface.co/Alpha-VLLM). + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +### Inference (Text-to-Image) + +Use [`torch.compile`](https://huggingface.co/docs/diffusers/main/en/tutorials/fast_diffusion#torchcompile) to reduce the inference latency. + +First, load the pipeline: + +```python +from diffusers import LuminaPipeline +import torch + +pipeline = LuminaPipeline.from_pretrained( + "Alpha-VLLM/Lumina-Next-SFT-diffusers", torch_dtype=torch.bfloat16 +).to("cuda") +``` + +Then change the memory layout of the pipelines `transformer` and `vae` components to `torch.channels-last`: + +```python +pipeline.transformer.to(memory_format=torch.channels_last) +pipeline.vae.to(memory_format=torch.channels_last) +``` + +Finally, compile the components and run inference: + +```python +pipeline.transformer = torch.compile(pipeline.transformer, mode="max-autotune", fullgraph=True) +pipeline.vae.decode = torch.compile(pipeline.vae.decode, mode="max-autotune", fullgraph=True) + +image = pipeline(prompt="Upper body of a young woman in a Victorian-era outfit with brass goggles and leather straps. Background shows an industrial revolution cityscape with smoky skies and tall, metal structures").images[0] +``` + +## Quantization + +Quantization helps reduce the memory requirements of very large models by storing model weights in a lower precision data type. However, quantization may have varying impact on video quality depending on the video model. + +Refer to the [Quantization](../../quantization/overview) overview to learn more about supported quantization backends and selecting a quantization backend that supports your use case. The example below demonstrates how to load a quantized [`LuminaPipeline`] for inference with bitsandbytes. + +```py +import torch +from diffusers import BitsAndBytesConfig as DiffusersBitsAndBytesConfig, Transformer2DModel, LuminaPipeline +from transformers import BitsAndBytesConfig as BitsAndBytesConfig, T5EncoderModel + +quant_config = BitsAndBytesConfig(load_in_8bit=True) +text_encoder_8bit = T5EncoderModel.from_pretrained( + "Alpha-VLLM/Lumina-Next-SFT-diffusers", + subfolder="text_encoder", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +quant_config = DiffusersBitsAndBytesConfig(load_in_8bit=True) +transformer_8bit = Transformer2DModel.from_pretrained( + "Alpha-VLLM/Lumina-Next-SFT-diffusers", + subfolder="transformer", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +pipeline = LuminaPipeline.from_pretrained( + "Alpha-VLLM/Lumina-Next-SFT-diffusers", + text_encoder=text_encoder_8bit, + transformer=transformer_8bit, + torch_dtype=torch.float16, + device_map="balanced", +) + +prompt = "a tiny astronaut hatching from an egg on the moon" +image = pipeline(prompt).images[0] +image.save("lumina.png") +``` + +## LuminaPipeline + +[[autodoc]] LuminaPipeline + - all + - __call__ + diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/lumina2.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/lumina2.md new file mode 100644 index 0000000000000000000000000000000000000000..0c4e793404fe9a74c4b1d4294fd99d8f6491f166 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/lumina2.md @@ -0,0 +1,84 @@ + + +# Lumina2 + +
+ LoRA +
+ +[Lumina Image 2.0: A Unified and Efficient Image Generative Model](https://huggingface.co/Alpha-VLLM/Lumina-Image-2.0) is a 2 billion parameter flow-based diffusion transformer capable of generating diverse images from text descriptions. + +The abstract from the paper is: + +*We introduce Lumina-Image 2.0, an advanced text-to-image model that surpasses previous state-of-the-art methods across multiple benchmarks, while also shedding light on its potential to evolve into a generalist vision intelligence model. Lumina-Image 2.0 exhibits three key properties: (1) Unification – it adopts a unified architecture that treats text and image tokens as a joint sequence, enabling natural cross-modal interactions and facilitating task expansion. Besides, since high-quality captioners can provide semantically better-aligned text-image training pairs, we introduce a unified captioning system, UniCaptioner, which generates comprehensive and precise captions for the model. This not only accelerates model convergence but also enhances prompt adherence, variable-length prompt handling, and task generalization via prompt templates. (2) Efficiency – to improve the efficiency of the unified architecture, we develop a set of optimization techniques that improve semantic learning and fine-grained texture generation during training while incorporating inference-time acceleration strategies without compromising image quality. (3) Transparency – we open-source all training details, code, and models to ensure full reproducibility, aiming to bridge the gap between well-resourced closed-source research teams and independent developers.* + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## Using Single File loading with Lumina Image 2.0 + +Single file loading for Lumina Image 2.0 is available for the `Lumina2Transformer2DModel` + +```python +import torch +from diffusers import Lumina2Transformer2DModel, Lumina2Pipeline + +ckpt_path = "https://huggingface.co/Alpha-VLLM/Lumina-Image-2.0/blob/main/consolidated.00-of-01.pth" +transformer = Lumina2Transformer2DModel.from_single_file( + ckpt_path, torch_dtype=torch.bfloat16 +) + +pipe = Lumina2Pipeline.from_pretrained( + "Alpha-VLLM/Lumina-Image-2.0", transformer=transformer, torch_dtype=torch.bfloat16 +) +pipe.enable_model_cpu_offload() +image = pipe( + "a cat holding a sign that says hello", + generator=torch.Generator("cpu").manual_seed(0), +).images[0] +image.save("lumina-single-file.png") + +``` + +## Using GGUF Quantized Checkpoints with Lumina Image 2.0 + +GGUF Quantized checkpoints for the `Lumina2Transformer2DModel` can be loaded via `from_single_file` with the `GGUFQuantizationConfig` + +```python +from diffusers import Lumina2Transformer2DModel, Lumina2Pipeline, GGUFQuantizationConfig + +ckpt_path = "https://huggingface.co/calcuis/lumina-gguf/blob/main/lumina2-q4_0.gguf" +transformer = Lumina2Transformer2DModel.from_single_file( + ckpt_path, + quantization_config=GGUFQuantizationConfig(compute_dtype=torch.bfloat16), + torch_dtype=torch.bfloat16, +) + +pipe = Lumina2Pipeline.from_pretrained( + "Alpha-VLLM/Lumina-Image-2.0", transformer=transformer, torch_dtype=torch.bfloat16 +) +pipe.enable_model_cpu_offload() +image = pipe( + "a cat holding a sign that says hello", + generator=torch.Generator("cpu").manual_seed(0), +).images[0] +image.save("lumina-gguf.png") +``` + +## Lumina2Pipeline + +[[autodoc]] Lumina2Pipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/marigold.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/marigold.md new file mode 100644 index 0000000000000000000000000000000000000000..bb6e94de33d719f5988752b798bd75b50c44bc0d --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/marigold.md @@ -0,0 +1,122 @@ + + +# Marigold Computer Vision + +![marigold](https://marigoldmonodepth.github.io/images/teaser_collage_compressed.jpg) + +Marigold was proposed in +[Repurposing Diffusion-Based Image Generators for Monocular Depth Estimation](https://huggingface.co/papers/2312.02145), +a CVPR 2024 Oral paper by +[Bingxin Ke](http://www.kebingxin.com/), +[Anton Obukhov](https://www.obukhov.ai/), +[Shengyu Huang](https://shengyuh.github.io/), +[Nando Metzger](https://nandometzger.github.io/), +[Rodrigo Caye Daudt](https://rcdaudt.github.io/), and +[Konrad Schindler](https://scholar.google.com/citations?user=FZuNgqIAAAAJ&hl=en). +The core idea is to **repurpose the generative prior of Text-to-Image Latent Diffusion Models (LDMs) for traditional +computer vision tasks**. +This approach was explored by fine-tuning Stable Diffusion for **Monocular Depth Estimation**, as demonstrated in the +teaser above. + +Marigold was later extended in the follow-up paper, +[Marigold: Affordable Adaptation of Diffusion-Based Image Generators for Image Analysis](https://huggingface.co/papers/2312.02145), +authored by +[Bingxin Ke](http://www.kebingxin.com/), +[Kevin Qu](https://www.linkedin.com/in/kevin-qu-b3417621b/?locale=en_US), +[Tianfu Wang](https://tianfwang.github.io/), +[Nando Metzger](https://nandometzger.github.io/), +[Shengyu Huang](https://shengyuh.github.io/), +[Bo Li](https://www.linkedin.com/in/bobboli0202/), +[Anton Obukhov](https://www.obukhov.ai/), and +[Konrad Schindler](https://scholar.google.com/citations?user=FZuNgqIAAAAJ&hl=en). +This work expanded Marigold to support new modalities such as **Surface Normals** and **Intrinsic Image Decomposition** +(IID), introduced a training protocol for **Latent Consistency Models** (LCM), and demonstrated **High-Resolution** (HR) +processing capability. + +> [!TIP] +> The early Marigold models (`v1-0` and earlier) were optimized for best results with at least 10 inference steps. +> LCM models were later developed to enable high-quality inference in just 1 to 4 steps. +> Marigold models `v1-1` and later use the DDIM scheduler to achieve optimal +> results in as few as 1 to 4 steps. + +## Available Pipelines + +Each pipeline is tailored for a specific computer vision task, processing an input RGB image and generating a +corresponding prediction. +Currently, the following computer vision tasks are implemented: + +| Pipeline | Recommended Model Checkpoints | Spaces (Interactive Apps) | Predicted Modalities | +|---------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:------------------------------------------------------------------------------------:|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| +| [MarigoldDepthPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/marigold/pipeline_marigold_depth.py) | [prs-eth/marigold-depth-v1-1](https://huggingface.co/prs-eth/marigold-depth-v1-1) | [Depth Estimation](https://huggingface.co/spaces/prs-eth/marigold) | [Depth](https://en.wikipedia.org/wiki/Depth_map), [Disparity](https://en.wikipedia.org/wiki/Binocular_disparity) | +| [MarigoldNormalsPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/marigold/pipeline_marigold_normals.py) | [prs-eth/marigold-normals-v1-1](https://huggingface.co/prs-eth/marigold-normals-v1-1) | [Surface Normals Estimation](https://huggingface.co/spaces/prs-eth/marigold-normals) | [Surface normals](https://en.wikipedia.org/wiki/Normal_mapping) | +| [MarigoldIntrinsicsPipeline](https://github.com/huggingface/diffusers/blob/main/src/diffusers/pipelines/marigold/pipeline_marigold_intrinsics.py) | [prs-eth/marigold-iid-appearance-v1-1](https://huggingface.co/prs-eth/marigold-iid-appearance-v1-1),
[prs-eth/marigold-iid-lighting-v1-1](https://huggingface.co/prs-eth/marigold-iid-lighting-v1-1) | [Intrinsic Image Decomposition](https://huggingface.co/spaces/prs-eth/marigold-iid) | [Albedo](https://en.wikipedia.org/wiki/Albedo), [Materials](https://www.n.aiq3d.com/wiki/roughnessmetalnessao-map), [Lighting](https://en.wikipedia.org/wiki/Diffuse_reflection) | + +## Available Checkpoints + +All original checkpoints are available under the [PRS-ETH](https://huggingface.co/prs-eth/) organization on Hugging Face. +They are designed for use with diffusers pipelines and the [original codebase](https://github.com/prs-eth/marigold), which can also be used to train +new model checkpoints. +The following is a summary of the recommended checkpoints, all of which produce reliable results with 1 to 4 steps. + +| Checkpoint | Modality | Comment | +|-----------------------------------------------------------------------------------------------------|--------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| +| [prs-eth/marigold-depth-v1-1](https://huggingface.co/prs-eth/marigold-depth-v1-1) | Depth | Affine-invariant depth prediction assigns each pixel a value between 0 (near plane) and 1 (far plane), with both planes determined by the model during inference. | +| [prs-eth/marigold-normals-v0-1](https://huggingface.co/prs-eth/marigold-normals-v0-1) | Normals | The surface normals predictions are unit-length 3D vectors in the screen space camera, with values in the range from -1 to 1. | +| [prs-eth/marigold-iid-appearance-v1-1](https://huggingface.co/prs-eth/marigold-iid-appearance-v1-1) | Intrinsics | InteriorVerse decomposition is comprised of Albedo and two BRDF material properties: Roughness and Metallicity. | +| [prs-eth/marigold-iid-lighting-v1-1](https://huggingface.co/prs-eth/marigold-iid-lighting-v1-1) | Intrinsics | HyperSim decomposition of an image $I$ is comprised of Albedo $A$, Diffuse shading $S$, and Non-diffuse residual $R$: $I = A*S+R$. | + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff +> between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to +> efficiently load the same components into multiple pipelines. +> Also, to know more about reducing the memory usage of this pipeline, refer to the ["Reduce memory usage"] section +> [here](../../using-diffusers/svd#reduce-memory-usage). + +> [!WARNING] +> Marigold pipelines were designed and tested with the scheduler embedded in the model checkpoint. +> The optimal number of inference steps varies by scheduler, with no universal value that works best across all cases. +> To accommodate this, the `num_inference_steps` parameter in the pipeline's `__call__` method defaults to `None` (see the +> API reference). +> Unless set explicitly, it inherits the value from the `default_denoising_steps` field in the checkpoint configuration +> file (`model_index.json`). +> This ensures high-quality predictions when invoking the pipeline with only the `image` argument. + +See also Marigold [usage examples](../../using-diffusers/marigold_usage). + +## Marigold Depth Prediction API + +[[autodoc]] MarigoldDepthPipeline + - __call__ + +[[autodoc]] pipelines.marigold.pipeline_marigold_depth.MarigoldDepthOutput + +[[autodoc]] pipelines.marigold.marigold_image_processing.MarigoldImageProcessor.visualize_depth + +## Marigold Normals Estimation API +[[autodoc]] MarigoldNormalsPipeline + - __call__ + +[[autodoc]] pipelines.marigold.pipeline_marigold_normals.MarigoldNormalsOutput + +[[autodoc]] pipelines.marigold.marigold_image_processing.MarigoldImageProcessor.visualize_normals + +## Marigold Intrinsic Image Decomposition API + +[[autodoc]] MarigoldIntrinsicsPipeline + - __call__ + +[[autodoc]] pipelines.marigold.pipeline_marigold_intrinsics.MarigoldIntrinsicsOutput + +[[autodoc]] pipelines.marigold.marigold_image_processing.MarigoldImageProcessor.visualize_intrinsics diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/mochi.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/mochi.md new file mode 100644 index 0000000000000000000000000000000000000000..f19a9bd575c120bbb70dcbaca356f354970675f5 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/mochi.md @@ -0,0 +1,276 @@ + + +# Mochi 1 Preview + +
+ LoRA +
+ +> [!TIP] +> Only a research preview of the model weights is available at the moment. + +[Mochi 1](https://huggingface.co/genmo/mochi-1-preview) is a video generation model by Genmo with a strong focus on prompt adherence and motion quality. The model features a 10B parameter Asmmetric Diffusion Transformer (AsymmDiT) architecture, and uses non-square QKV and output projection layers to reduce inference memory requirements. A single T5-XXL model is used to encode prompts. + +*Mochi 1 preview is an open state-of-the-art video generation model with high-fidelity motion and strong prompt adherence in preliminary evaluation. This model dramatically closes the gap between closed and open video generation systems. The model is released under a permissive Apache 2.0 license.* + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## Quantization + +Quantization helps reduce the memory requirements of very large models by storing model weights in a lower precision data type. However, quantization may have varying impact on video quality depending on the video model. + +Refer to the [Quantization](../../quantization/overview) overview to learn more about supported quantization backends and selecting a quantization backend that supports your use case. The example below demonstrates how to load a quantized [`MochiPipeline`] for inference with bitsandbytes. + +```py +import torch +from diffusers import BitsAndBytesConfig as DiffusersBitsAndBytesConfig, MochiTransformer3DModel, MochiPipeline +from diffusers.utils import export_to_video +from transformers import BitsAndBytesConfig as BitsAndBytesConfig, T5EncoderModel + +quant_config = BitsAndBytesConfig(load_in_8bit=True) +text_encoder_8bit = T5EncoderModel.from_pretrained( + "genmo/mochi-1-preview", + subfolder="text_encoder", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +quant_config = DiffusersBitsAndBytesConfig(load_in_8bit=True) +transformer_8bit = MochiTransformer3DModel.from_pretrained( + "genmo/mochi-1-preview", + subfolder="transformer", + quantization_config=quant_config, + torch_dtype=torch.float16, +) + +pipeline = MochiPipeline.from_pretrained( + "genmo/mochi-1-preview", + text_encoder=text_encoder_8bit, + transformer=transformer_8bit, + torch_dtype=torch.float16, + device_map="balanced", +) + +video = pipeline( + "Close-up of a cats eye, with the galaxy reflected in the cats eye. Ultra high resolution 4k.", + num_inference_steps=28, + guidance_scale=3.5 +).frames[0] +export_to_video(video, "cat.mp4") +``` + +## Generating videos with Mochi-1 Preview + +The following example will download the full precision `mochi-1-preview` weights and produce the highest quality results but will require at least 42GB VRAM to run. + +```python +import torch +from diffusers import MochiPipeline +from diffusers.utils import export_to_video + +pipe = MochiPipeline.from_pretrained("genmo/mochi-1-preview") + +# Enable memory savings +pipe.enable_model_cpu_offload() +pipe.enable_vae_tiling() + +prompt = "Close-up of a chameleon's eye, with its scaly skin changing color. Ultra high resolution 4k." + +with torch.autocast("cuda", torch.bfloat16, cache_enabled=False): + frames = pipe(prompt, num_frames=85).frames[0] + +export_to_video(frames, "mochi.mp4", fps=30) +``` + +## Using a lower precision variant to save memory + +The following example will use the `bfloat16` variant of the model and requires 22GB VRAM to run. There is a slight drop in the quality of the generated video as a result. + +```python +import torch +from diffusers import MochiPipeline +from diffusers.utils import export_to_video + +pipe = MochiPipeline.from_pretrained("genmo/mochi-1-preview", variant="bf16", torch_dtype=torch.bfloat16) + +# Enable memory savings +pipe.enable_model_cpu_offload() +pipe.enable_vae_tiling() + +prompt = "Close-up of a chameleon's eye, with its scaly skin changing color. Ultra high resolution 4k." +frames = pipe(prompt, num_frames=85).frames[0] + +export_to_video(frames, "mochi.mp4", fps=30) +``` + +## Reproducing the results from the Genmo Mochi repo + +The [Genmo Mochi implementation](https://github.com/genmoai/mochi/tree/main) uses different precision values for each stage in the inference process. The text encoder and VAE use `torch.float32`, while the DiT uses `torch.bfloat16` with the [attention kernel](https://pytorch.org/docs/stable/generated/torch.nn.attention.sdpa_kernel.html#torch.nn.attention.sdpa_kernel) set to `EFFICIENT_ATTENTION`. Diffusers pipelines currently do not support setting different `dtypes` for different stages of the pipeline. In order to run inference in the same way as the original implementation, please refer to the following example. + +> [!TIP] +> The original Mochi implementation zeros out empty prompts. However, enabling this option and placing the entire pipeline under autocast can lead to numerical overflows with the T5 text encoder. +> +> When enabling `force_zeros_for_empty_prompt`, it is recommended to run the text encoding step outside the autocast context in full precision. + +> [!TIP] +> Decoding the latents in full precision is very memory intensive. You will need at least 70GB VRAM to generate the 163 frames in this example. To reduce memory, either reduce the number of frames or run the decoding step in `torch.bfloat16`. + +```python +import torch +from torch.nn.attention import SDPBackend, sdpa_kernel + +from diffusers import MochiPipeline +from diffusers.utils import export_to_video +from diffusers.video_processor import VideoProcessor + +pipe = MochiPipeline.from_pretrained("genmo/mochi-1-preview", force_zeros_for_empty_prompt=True) +pipe.enable_vae_tiling() +pipe.enable_model_cpu_offload() + +prompt = "An aerial shot of a parade of elephants walking across the African savannah. The camera showcases the herd and the surrounding landscape." + +with torch.no_grad(): + prompt_embeds, prompt_attention_mask, negative_prompt_embeds, negative_prompt_attention_mask = ( + pipe.encode_prompt(prompt=prompt) + ) + +with torch.autocast("cuda", torch.bfloat16): + with sdpa_kernel(SDPBackend.EFFICIENT_ATTENTION): + frames = pipe( + prompt_embeds=prompt_embeds, + prompt_attention_mask=prompt_attention_mask, + negative_prompt_embeds=negative_prompt_embeds, + negative_prompt_attention_mask=negative_prompt_attention_mask, + guidance_scale=4.5, + num_inference_steps=64, + height=480, + width=848, + num_frames=163, + generator=torch.Generator("cuda").manual_seed(0), + output_type="latent", + return_dict=False, + )[0] + +video_processor = VideoProcessor(vae_scale_factor=8) +has_latents_mean = hasattr(pipe.vae.config, "latents_mean") and pipe.vae.config.latents_mean is not None +has_latents_std = hasattr(pipe.vae.config, "latents_std") and pipe.vae.config.latents_std is not None +if has_latents_mean and has_latents_std: + latents_mean = ( + torch.tensor(pipe.vae.config.latents_mean).view(1, 12, 1, 1, 1).to(frames.device, frames.dtype) + ) + latents_std = ( + torch.tensor(pipe.vae.config.latents_std).view(1, 12, 1, 1, 1).to(frames.device, frames.dtype) + ) + frames = frames * latents_std / pipe.vae.config.scaling_factor + latents_mean +else: + frames = frames / pipe.vae.config.scaling_factor + +with torch.no_grad(): + video = pipe.vae.decode(frames.to(pipe.vae.dtype), return_dict=False)[0] + +video = video_processor.postprocess_video(video)[0] +export_to_video(video, "mochi.mp4", fps=30) +``` + +## Running inference with multiple GPUs + +It is possible to split the large Mochi transformer across multiple GPUs using the `device_map` and `max_memory` options in `from_pretrained`. In the following example we split the model across two GPUs, each with 24GB of VRAM. + +```python +import torch +from diffusers import MochiPipeline, MochiTransformer3DModel +from diffusers.utils import export_to_video + +model_id = "genmo/mochi-1-preview" +transformer = MochiTransformer3DModel.from_pretrained( + model_id, + subfolder="transformer", + device_map="auto", + max_memory={0: "24GB", 1: "24GB"} +) + +pipe = MochiPipeline.from_pretrained(model_id, transformer=transformer) +pipe.enable_model_cpu_offload() +pipe.enable_vae_tiling() + +with torch.autocast(device_type="cuda", dtype=torch.bfloat16, cache_enabled=False): + frames = pipe( + prompt="Close-up of a chameleon's eye, with its scaly skin changing color. Ultra high resolution 4k.", + negative_prompt="", + height=480, + width=848, + num_frames=85, + num_inference_steps=50, + guidance_scale=4.5, + num_videos_per_prompt=1, + generator=torch.Generator(device="cuda").manual_seed(0), + max_sequence_length=256, + output_type="pil", + ).frames[0] + +export_to_video(frames, "output.mp4", fps=30) +``` + +## Using single file loading with the Mochi Transformer + +You can use `from_single_file` to load the Mochi transformer in its original format. + +> [!TIP] +> Diffusers currently doesn't support using the FP8 scaled versions of the Mochi single file checkpoints. + +```python +import torch +from diffusers import MochiPipeline, MochiTransformer3DModel +from diffusers.utils import export_to_video + +model_id = "genmo/mochi-1-preview" + +ckpt_path = "https://huggingface.co/Comfy-Org/mochi_preview_repackaged/blob/main/split_files/diffusion_models/mochi_preview_bf16.safetensors" + +transformer = MochiTransformer3DModel.from_pretrained(ckpt_path, torch_dtype=torch.bfloat16) + +pipe = MochiPipeline.from_pretrained(model_id, transformer=transformer) +pipe.enable_model_cpu_offload() +pipe.enable_vae_tiling() + +with torch.autocast(device_type="cuda", dtype=torch.bfloat16, cache_enabled=False): + frames = pipe( + prompt="Close-up of a chameleon's eye, with its scaly skin changing color. Ultra high resolution 4k.", + negative_prompt="", + height=480, + width=848, + num_frames=85, + num_inference_steps=50, + guidance_scale=4.5, + num_videos_per_prompt=1, + generator=torch.Generator(device="cuda").manual_seed(0), + max_sequence_length=256, + output_type="pil", + ).frames[0] + +export_to_video(frames, "output.mp4", fps=30) +``` + +## MochiPipeline + +[[autodoc]] MochiPipeline + - all + - __call__ + +## MochiPipelineOutput + +[[autodoc]] pipelines.mochi.pipeline_output.MochiPipelineOutput diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/musicldm.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/musicldm.md new file mode 100644 index 0000000000000000000000000000000000000000..1a83e5932ed489d9e6269be7c7d84a851a87a467 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/musicldm.md @@ -0,0 +1,52 @@ + + +> [!WARNING] +> This pipeline is deprecated but it can still be used. However, we won't test the pipeline anymore and won't accept any changes to it. If you run into any issues, reinstall the last Diffusers version that supported this model. + +# MusicLDM + +MusicLDM was proposed in [MusicLDM: Enhancing Novelty in Text-to-Music Generation Using Beat-Synchronous Mixup Strategies](https://huggingface.co/papers/2308.01546) by Ke Chen, Yusong Wu, Haohe Liu, Marianna Nezhurina, Taylor Berg-Kirkpatrick, Shlomo Dubnov. +MusicLDM takes a text prompt as input and predicts the corresponding music sample. + +Inspired by [Stable Diffusion](https://huggingface.co/docs/diffusers/api/pipelines/stable_diffusion/overview) and [AudioLDM](https://huggingface.co/docs/diffusers/api/pipelines/audioldm), +MusicLDM is a text-to-music _latent diffusion model (LDM)_ that learns continuous audio representations from [CLAP](https://huggingface.co/docs/transformers/main/model_doc/clap) +latents. + +MusicLDM is trained on a corpus of 466 hours of music data. Beat-synchronous data augmentation strategies are applied to the music samples, both in the time domain and in the latent space. Using beat-synchronous data augmentation strategies encourages the model to interpolate between the training samples, but stay within the domain of the training data. The result is generated music that is more diverse while staying faithful to the corresponding style. + +The abstract of the paper is the following: + +*Diffusion models have shown promising results in cross-modal generation tasks, including text-to-image and text-to-audio generation. However, generating music, as a special type of audio, presents unique challenges due to limited availability of music data and sensitive issues related to copyright and plagiarism. In this paper, to tackle these challenges, we first construct a state-of-the-art text-to-music model, MusicLDM, that adapts Stable Diffusion and AudioLDM architectures to the music domain. We achieve this by retraining the contrastive language-audio pretraining model (CLAP) and the Hifi-GAN vocoder, as components of MusicLDM, on a collection of music data samples. Then, to address the limitations of training data and to avoid plagiarism, we leverage a beat tracking model and propose two different mixup strategies for data augmentation: beat-synchronous audio mixup and beat-synchronous latent mixup, which recombine training audio directly or via a latent embeddings space, respectively. Such mixup strategies encourage the model to interpolate between musical training samples and generate new music within the convex hull of the training data, making the generated music more diverse while still staying faithful to the corresponding style. In addition to popular evaluation metrics, we design several new evaluation metrics based on CLAP score to demonstrate that our proposed MusicLDM and beat-synchronous mixup strategies improve both the quality and novelty of generated music, as well as the correspondence between input text and generated music.* + +This pipeline was contributed by [sanchit-gandhi](https://huggingface.co/sanchit-gandhi). + +## Tips + +When constructing a prompt, keep in mind: + +* Descriptive prompt inputs work best; use adjectives to describe the sound (for example, "high quality" or "clear") and make the prompt context specific where possible (e.g. "melodic techno with a fast beat and synths" works better than "techno"). +* Using a *negative prompt* can significantly improve the quality of the generated audio. Try using a negative prompt of "low quality, average quality". + +During inference: + +* The _quality_ of the generated audio sample can be controlled by the `num_inference_steps` argument; higher steps give higher quality audio at the expense of slower inference. +* Multiple waveforms can be generated in one go: set `num_waveforms_per_prompt` to a value greater than 1 to enable. Automatic scoring will be performed between the generated waveforms and prompt text, and the audios ranked from best to worst accordingly. +* The _length_ of the generated audio sample can be controlled by varying the `audio_length_in_s` argument. + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +## MusicLDMPipeline +[[autodoc]] MusicLDMPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/omnigen.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/omnigen.md new file mode 100644 index 0000000000000000000000000000000000000000..4fac5c789a25096c78d398d2b38e8f2f5bff5b4c --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/omnigen.md @@ -0,0 +1,77 @@ + + +# OmniGen + +[OmniGen: Unified Image Generation](https://huggingface.co/papers/2409.11340) from BAAI, by Shitao Xiao, Yueze Wang, Junjie Zhou, Huaying Yuan, Xingrun Xing, Ruiran Yan, Chaofan Li, Shuting Wang, Tiejun Huang, Zheng Liu. + +The abstract from the paper is: + +*The emergence of Large Language Models (LLMs) has unified language generation tasks and revolutionized human-machine interaction. However, in the realm of image generation, a unified model capable of handling various tasks within a single framework remains largely unexplored. In this work, we introduce OmniGen, a new diffusion model for unified image generation. OmniGen is characterized by the following features: 1) Unification: OmniGen not only demonstrates text-to-image generation capabilities but also inherently supports various downstream tasks, such as image editing, subject-driven generation, and visual conditional generation. 2) Simplicity: The architecture of OmniGen is highly simplified, eliminating the need for additional plugins. Moreover, compared to existing diffusion models, it is more user-friendly and can complete complex tasks end-to-end through instructions without the need for extra intermediate steps, greatly simplifying the image generation workflow. 3) Knowledge Transfer: Benefit from learning in a unified format, OmniGen effectively transfers knowledge across different tasks, manages unseen tasks and domains, and exhibits novel capabilities. We also explore the model’s reasoning capabilities and potential applications of the chain-of-thought mechanism. This work represents the first attempt at a general-purpose image generation model, and we will release our resources at https://github.com/VectorSpaceLab/OmniGen to foster future advancements.* + +> [!TIP] +> Make sure to check out the Schedulers [guide](../../using-diffusers/schedulers.md) to learn how to explore the tradeoff between scheduler speed and quality, and see the [reuse components across pipelines](../../using-diffusers/loading.md#reuse-a-pipeline) section to learn how to efficiently load the same components into multiple pipelines. + +This pipeline was contributed by [staoxiao](https://github.com/staoxiao). The original codebase can be found [here](https://github.com/VectorSpaceLab/OmniGen). The original weights can be found under [hf.co/shitao](https://huggingface.co/Shitao/OmniGen-v1). + +## Inference + +First, load the pipeline: + +```python +import torch +from diffusers import OmniGenPipeline + +pipe = OmniGenPipeline.from_pretrained("Shitao/OmniGen-v1-diffusers", torch_dtype=torch.bfloat16) +pipe.to("cuda") +``` + +For text-to-image, pass a text prompt. By default, OmniGen generates a 1024x1024 image. +You can try setting the `height` and `width` parameters to generate images with different size. + +```python +prompt = "Realistic photo. A young woman sits on a sofa, holding a book and facing the camera. She wears delicate silver hoop earrings adorned with tiny, sparkling diamonds that catch the light, with her long chestnut hair cascading over her shoulders. Her eyes are focused and gentle, framed by long, dark lashes. She is dressed in a cozy cream sweater, which complements her warm, inviting smile. Behind her, there is a table with a cup of water in a sleek, minimalist blue mug. The background is a serene indoor setting with soft natural light filtering through a window, adorned with tasteful art and flowers, creating a cozy and peaceful ambiance. 4K, HD." +image = pipe( + prompt=prompt, + height=1024, + width=1024, + guidance_scale=3, + generator=torch.Generator(device="cpu").manual_seed(111), +).images[0] +image.save("output.png") +``` + +OmniGen supports multimodal inputs. +When the input includes an image, you need to add a placeholder `<|image_1|>` in the text prompt to represent the image. +It is recommended to enable `use_input_image_size_as_output` to keep the edited image the same size as the original image. + +```python +prompt="<|image_1|> Remove the woman's earrings. Replace the mug with a clear glass filled with sparkling iced cola." +input_images=[load_image("https://raw.githubusercontent.com/VectorSpaceLab/OmniGen/main/imgs/docs_img/t2i_woman_with_book.png")] +image = pipe( + prompt=prompt, + input_images=input_images, + guidance_scale=2, + img_guidance_scale=1.6, + use_input_image_size_as_output=True, + generator=torch.Generator(device="cpu").manual_seed(222)).images[0] +image.save("output.png") +``` + +## OmniGenPipeline + +[[autodoc]] OmniGenPipeline + - all + - __call__ diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/overview.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/overview.md new file mode 100644 index 0000000000000000000000000000000000000000..22fcf560eacaa1fa929b42a21faa8d1de51091fa --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/overview.md @@ -0,0 +1,122 @@ + + +# Pipelines + +Pipelines provide a simple way to run state-of-the-art diffusion models in inference by bundling all of the necessary components (multiple independently-trained models, schedulers, and processors) into a single end-to-end class. Pipelines are flexible and they can be adapted to use different schedulers or even model components. + +All pipelines are built from the base [`DiffusionPipeline`] class which provides basic functionality for loading, downloading, and saving all the components. Specific pipeline types (for example [`StableDiffusionPipeline`]) loaded with [`~DiffusionPipeline.from_pretrained`] are automatically detected and the pipeline components are loaded and passed to the `__init__` function of the pipeline. + +> [!WARNING] +> You shouldn't use the [`DiffusionPipeline`] class for training. Individual components (for example, [`UNet2DModel`] and [`UNet2DConditionModel`]) of diffusion pipelines are usually trained individually, so we suggest directly working with them instead. +> +>
+> +> Pipelines do not offer any training functionality. You'll notice PyTorch's autograd is disabled by decorating the [`~DiffusionPipeline.__call__`] method with a [`torch.no_grad`](https://pytorch.org/docs/stable/generated/torch.no_grad.html) decorator because pipelines should not be used for training. If you're interested in training, please take a look at the [Training](../../training/overview) guides instead! + +The table below lists all the pipelines currently available in 🤗 Diffusers and the tasks they support. Click on a pipeline to view its abstract and published paper. + +| Pipeline | Tasks | +|---|---| +| [aMUSEd](amused) | text2image | +| [AnimateDiff](animatediff) | text2video | +| [Attend-and-Excite](attend_and_excite) | text2image | +| [AudioLDM](audioldm) | text2audio | +| [AudioLDM2](audioldm2) | text2audio | +| [AuraFlow](aura_flow) | text2image | +| [BLIP Diffusion](blip_diffusion) | text2image | +| [Bria 3.2](bria_3_2) | text2image | +| [CogVideoX](cogvideox) | text2video | +| [Consistency Models](consistency_models) | unconditional image generation | +| [ControlNet](controlnet) | text2image, image2image, inpainting | +| [ControlNet with Flux.1](controlnet_flux) | text2image | +| [ControlNet with Hunyuan-DiT](controlnet_hunyuandit) | text2image | +| [ControlNet with Stable Diffusion 3](controlnet_sd3) | text2image | +| [ControlNet with Stable Diffusion XL](controlnet_sdxl) | text2image | +| [ControlNet-XS](controlnetxs) | text2image | +| [ControlNet-XS with Stable Diffusion XL](controlnetxs_sdxl) | text2image | +| [Dance Diffusion](dance_diffusion) | unconditional audio generation | +| [DDIM](ddim) | unconditional image generation | +| [DDPM](ddpm) | unconditional image generation | +| [DeepFloyd IF](deepfloyd_if) | text2image, image2image, inpainting, super-resolution | +| [DiffEdit](diffedit) | inpainting | +| [DiT](dit) | text2image | +| [Flux](flux) | text2image | +| [Hunyuan-DiT](hunyuandit) | text2image | +| [I2VGen-XL](i2vgenxl) | image2video | +| [InstructPix2Pix](pix2pix) | image editing | +| [Kandinsky 2.1](kandinsky) | text2image, image2image, inpainting, interpolation | +| [Kandinsky 2.2](kandinsky_v22) | text2image, image2image, inpainting | +| [Kandinsky 3](kandinsky3) | text2image, image2image | +| [Kolors](kolors) | text2image | +| [Latent Consistency Models](latent_consistency_models) | text2image | +| [Latent Diffusion](latent_diffusion) | text2image, super-resolution | +| [Latte](latte) | text2image | +| [LEDITS++](ledits_pp) | image editing | +| [Lumina-T2X](lumina) | text2image | +| [Marigold](marigold) | depth-estimation, normals-estimation, intrinsic-decomposition | +| [MultiDiffusion](panorama) | text2image | +| [MusicLDM](musicldm) | text2audio | +| [PAG](pag) | text2image | +| [Paint by Example](paint_by_example) | inpainting | +| [PIA](pia) | image2video | +| [PixArt-α](pixart) | text2image | +| [PixArt-Σ](pixart_sigma) | text2image | +| [Self-Attention Guidance](self_attention_guidance) | text2image | +| [Semantic Guidance](semantic_stable_diffusion) | text2image | +| [Shap-E](shap_e) | text-to-3D, image-to-3D | +| [Stable Audio](stable_audio) | text2audio | +| [Stable Cascade](stable_cascade) | text2image | +| [Stable Diffusion](stable_diffusion/overview) | text2image, image2image, depth2image, inpainting, image variation, latent upscaler, super-resolution | +| [Stable Diffusion XL](stable_diffusion/stable_diffusion_xl) | text2image, image2image, inpainting | +| [Stable Diffusion XL Turbo](stable_diffusion/sdxl_turbo) | text2image, image2image, inpainting | +| [Stable unCLIP](stable_unclip) | text2image, image variation | +| [T2I-Adapter](stable_diffusion/adapter) | text2image | +| [Text2Video](text_to_video) | text2video, video2video | +| [Text2Video-Zero](text_to_video_zero) | text2video | +| [unCLIP](unclip) | text2image, image variation | +| [UniDiffuser](unidiffuser) | text2image, image2text, image variation, text variation, unconditional image generation, unconditional audio generation | +| [Value-guided planning](value_guided_sampling) | value guided sampling | +| [Wuerstchen](wuerstchen) | text2image | +| [VisualCloze](visualcloze) | text2image, image2image, subject driven generation, inpainting, style transfer, image restoration, image editing, [depth,normal,edge,pose]2image, [depth,normal,edge,pose]-estimation, virtual try-on, image relighting | + +## DiffusionPipeline + +[[autodoc]] DiffusionPipeline + - all + - __call__ + - device + - to + - components + + +[[autodoc]] pipelines.StableDiffusionMixin.enable_freeu + +[[autodoc]] pipelines.StableDiffusionMixin.disable_freeu + +## PushToHubMixin + +[[autodoc]] utils.PushToHubMixin + +## Callbacks + +[[autodoc]] callbacks.PipelineCallback + +[[autodoc]] callbacks.SDCFGCutoffCallback + +[[autodoc]] callbacks.SDXLCFGCutoffCallback + +[[autodoc]] callbacks.SDXLControlnetCFGCutoffCallback + +[[autodoc]] callbacks.IPAdapterScaleCutoffCallback + +[[autodoc]] callbacks.SD3CFGCutoffCallback diff --git a/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/pag.md b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/pag.md new file mode 100644 index 0000000000000000000000000000000000000000..35004b6ad39c10b1c77660ddb71674c3172fd9f4 --- /dev/null +++ b/tasks/tasksmith-1c5704b1f07f/tests/source/docs/source/en/api/pipelines/pag.md @@ -0,0 +1,113 @@ + + +# Perturbed-Attention Guidance + +
+ LoRA +
+ +[Perturbed-Attention Guidance (PAG)](https://ku-cvlab.github.io/Perturbed-Attention-Guidance/) is a new diffusion sampling guidance that improves sample quality across both unconditional and conditional settings, achieving this without requiring further training or the integration of external modules. + +PAG was introduced in [Self-Rectifying Diffusion Sampling with Perturbed-Attention Guidance](https://huggingface.co/papers/2403.17377) by Donghoon Ahn, Hyoungwon Cho, Jaewon Min, Wooseok Jang, Jungwoo Kim, SeonHwa Kim, Hyun Hee Park, Kyong Hwan Jin and Seungryong Kim. + +The abstract from the paper is: + +*Recent studies have demonstrated that diffusion models are capable of generating high-quality samples, but their quality heavily depends on sampling guidance techniques, such as classifier guidance (CG) and classifier-free guidance (CFG). These techniques are often not applicable in unconditional generation or in various downstream tasks such as image restoration. In this paper, we propose a novel sampling guidance, called Perturbed-Attention Guidance (PAG), which improves diffusion sample quality across both unconditional and conditional settings, achieving this without requiring additional training or the integration of external modules. PAG is designed to progressively enhance the structure of samples throughout the denoising process. It involves generating intermediate samples with degraded structure by substituting selected self-attention maps in diffusion U-Net with an identity matrix, by considering the self-attention mechanisms' ability to capture structural information, and guiding the denoising process away from these degraded samples. In both ADM and Stable Diffusion, PAG surprisingly improves sample quality in conditional and even unconditional scenarios. Moreover, PAG significantly improves the baseline performance in various downstream tasks where existing guidances such as CG or CFG cannot be fully utilized, including ControlNet with empty prompts and image restoration such as inpainting and deblurring.* + +PAG can be used by specifying the `pag_applied_layers` as a parameter when instantiating a PAG pipeline. It can be a single string or a list of strings. Each string can be a unique layer identifier or a regular expression to identify one or more layers. + +- Full identifier as a normal string: `down_blocks.2.attentions.0.transformer_blocks.0.attn1.processor` +- Full identifier as a RegEx: `down_blocks.2.(attentions|motion_modules).0.transformer_blocks.0.attn1.processor` +- Partial identifier as a RegEx: `down_blocks.2`, or `attn1` +- List of identifiers (can be combo of strings and ReGex): `["blocks.1", "blocks.(14|20)", r"down_blocks\.(2,3)"]` + +> [!WARNING] +> Since RegEx is supported as a way for matching layer identifiers, it is crucial to use it correctly otherwise there might be unexpected behaviour. The recommended way to use PAG is by specifying layers as `blocks.{layer_index}` and `blocks.({layer_index_1|layer_index_2|...})`. Using it in any other way, while doable, may bypass our basic validation checks and give you unexpected results. + +## AnimateDiffPAGPipeline +[[autodoc]] AnimateDiffPAGPipeline + - all + - __call__ + +## HunyuanDiTPAGPipeline +[[autodoc]] HunyuanDiTPAGPipeline + - all + - __call__ + +## KolorsPAGPipeline +[[autodoc]] KolorsPAGPipeline + - all + - __call__ + +## StableDiffusionPAGInpaintPipeline +[[autodoc]] StableDiffusionPAGInpaintPipeline + - all + - __call__ + +## StableDiffusionPAGPipeline +[[autodoc]] StableDiffusionPAGPipeline + - all + - __call__ + +## StableDiffusionPAGImg2ImgPipeline +[[autodoc]] StableDiffusionPAGImg2ImgPipeline + - all + - __call__ + +## StableDiffusionControlNetPAGPipeline +[[autodoc]] StableDiffusionControlNetPAGPipeline + +## StableDiffusionControlNetPAGInpaintPipeline +[[autodoc]] StableDiffusionControlNetPAGInpaintPipeline + - all + - __call__ + +## StableDiffusionXLPAGPipeline +[[autodoc]] StableDiffusionXLPAGPipeline + - all + - __call__ + +## StableDiffusionXLPAGImg2ImgPipeline +[[autodoc]] StableDiffusionXLPAGImg2ImgPipeline + - all + - __call__ + +## StableDiffusionXLPAGInpaintPipeline +[[autodoc]] StableDiffusionXLPAGInpaintPipeline + - all + - __call__ + +## StableDiffusionXLControlNetPAGPipeline +[[autodoc]] StableDiffusionXLControlNetPAGPipeline + - all + - __call__ + +## StableDiffusionXLControlNetPAGImg2ImgPipeline +[[autodoc]] StableDiffusionXLControlNetPAGImg2ImgPipeline + - all + - __call__ + +## StableDiffusion3PAGPipeline +[[autodoc]] StableDiffusion3PAGPipeline + - all + - __call__ + +## StableDiffusion3PAGImg2ImgPipeline +[[autodoc]] StableDiffusion3PAGImg2ImgPipeline + - all + - __call__ + +## PixArtSigmaPAGPipeline +[[autodoc]] PixArtSigmaPAGPipeline + - all + - __call__