| '''OpenGL extension NV.shader_atomic_float |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GL.NV.shader_atomic_float to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| This extension provides GLSL built-in functions and assembly opcodes |
| allowing shaders to perform atomic read-modify-write operations to buffer |
| or texture memory with floating-point components. The set of atomic |
| operations provided by this extension is limited to adds and exchanges. |
| Providing atomic add support allows shaders to atomically accumulate the |
| sum of floating-point values into buffer or texture memory across multiple |
| (possibly concurrent) shader invocations. |
| |
| This extension provides GLSL support for atomics targeting image uniforms |
| (if GLSL 4.20, ARB_shader_image_load_store, or EXT_shader_image_load_store |
| is supported) or floating-point pointers (if NV_gpu_shader5 is supported). |
| Additionally, assembly opcodes for these operations is also provided if |
| NV_gpu_program5 is supported. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/NV/shader_atomic_float.txt |
| ''' |
| from OpenGL import platform, constant, arrays |
| from OpenGL import extensions, wrapper |
| import ctypes |
| from OpenGL.raw.GL import _types, _glgets |
| from OpenGL.raw.GL.NV.shader_atomic_float import * |
| from OpenGL.raw.GL.NV.shader_atomic_float import _EXTENSION_NAME |
|
|
| def glInitShaderAtomicFloatNV(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
