File size: 4,269 Bytes
41f85e5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | # Copyright (c) 2023, Shukant Pal and Contributors
# SPDX-License-Identifier: Apache-2.0
from pyktx import *
from test_config import __test_images__
import unittest
class TestKtxTexture2(unittest.TestCase):
def test_create_from_named_file(self):
test_ktx_file = os.path.join(__test_images__, 'astc_ldr_4x4_FlightHelmet_baseColor.ktx2')
texture = KtxTexture2.create_from_named_file(test_ktx_file)
self.assertEqual(texture.num_levels, 1)
self.assertEqual(texture.num_faces, 1)
self.assertEqual(texture.vk_format, VkFormat.VK_FORMAT_ASTC_4x4_SRGB_BLOCK)
self.assertEqual(texture.base_width, 2048)
self.assertEqual(texture.base_height, 2048)
self.assertEqual(texture.supercompression_scheme, KtxSupercmpScheme.NONE)
def test_create_from_named_file_mipmapped(self):
test_ktx_file = os.path.join(__test_images__, 'astc_mipmap_ldr_4x4_posx.ktx2')
texture = KtxTexture2.create_from_named_file(test_ktx_file, KtxTextureCreateFlagBits.NO_FLAGS)
self.assertEqual(texture.num_levels, 12)
self.assertEqual(texture.base_width, 2048)
self.assertEqual(texture.base_height, 2048)
def test_get_image_size(self):
test_ktx_file = os.path.join(__test_images__, 'astc_mipmap_ldr_4x4_posx.ktx2')
texture = KtxTexture2.create_from_named_file(test_ktx_file)
self.assertEqual(texture.image_size(0), 4194304)
def test_get_image_offset(self):
test_ktx_file = os.path.join(__test_images__, 'astc_mipmap_ldr_4x4_posx.ktx2')
texture = KtxTexture2.create_from_named_file(test_ktx_file)
level11_offset = texture.image_offset(11, 0, 0)
level0_offset = texture.image_offset(0, 0, 0)
self.assertEqual(level11_offset, 0)
self.assertEqual(level0_offset - level11_offset, 0x155790 - 0x220)
def test_get_size(self):
test_ktx_file = os.path.join(__test_images__, 'astc_mipmap_ldr_4x4_posx.ktx2')
texture = KtxTexture2.create_from_named_file(test_ktx_file)
self.assertEqual(texture.num_levels, 12)
data_size = texture.data_size
total_size = 0
for i in range(0, 12):
total_size += texture.image_size(i)
self.assertEqual(total_size, data_size)
data = texture.data()
self.assertEqual(len(data), data_size)
def test_get_data(self):
test_ktx_file = os.path.join(__test_images__, 'astc_mipmap_ldr_4x4_posx.ktx2')
texture = KtxTexture2.create_from_named_file(test_ktx_file)
self.assertEqual(texture.num_levels, 12)
level0_length = texture.image_size(0)
with open(test_ktx_file, 'rb') as file:
data = texture.data()
self.assertEqual(file.read()[-level0_length - 1:], data[-level0_length - 1:])
def test_compress_basis(self):
test_ktx_file = os.path.join(__test_images__, 'arraytex_7_mipmap_reference_u.ktx2')
texture = KtxTexture2.create_from_named_file(test_ktx_file, KtxTextureCreateFlagBits.LOAD_IMAGE_DATA_BIT)
self.assertEqual(texture.is_compressed, False)
self.assertEqual(texture.supercompression_scheme, KtxSupercmpScheme.NONE)
texture.compress_basis(KtxBasisParams(quality_level=1))
self.assertEqual(texture.is_compressed, True)
self.assertEqual(texture.supercompression_scheme, KtxSupercmpScheme.BASIS_LZ)
def test_transcode_basis(self):
test_ktx_file = os.path.join(__test_images__, 'color_grid_basis.ktx2')
texture = KtxTexture2.create_from_named_file(test_ktx_file, KtxTextureCreateFlagBits.LOAD_IMAGE_DATA_BIT)
texture.transcode_basis(KtxTranscodeFmt.ASTC_4x4_RGBA, 0)
self.assertEqual(texture.vk_format, VkFormat.VK_FORMAT_ASTC_4x4_SRGB_BLOCK)
def test_create(self):
info = KtxTextureCreateInfo(
gl_internal_format=None, # ignored
base_width=10,
base_height=10,
base_depth=1,
vk_format=VkFormat.VK_FORMAT_ASTC_4x4_SRGB_BLOCK)
texture = KtxTexture2.create(info, KtxTextureCreateStorage.ALLOC)
self.assertEqual(texture.vk_format, VkFormat.VK_FORMAT_ASTC_4x4_SRGB_BLOCK)
texture.set_image_from_memory(0, 0, 0, bytes(texture.data_size))
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