| | '''OpenGL extension AMD.shader_atomic_counter_ops |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.AMD.shader_atomic_counter_ops to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | The ARB_shader_atomic_counters extension introduced atomic counters, but |
| | it limits list of potential operations that can be performed on them to |
| | increment, decrement, and query. This extension extends the list of GLSL |
| | built-in functions that can operate on atomic counters. The list of new |
| | operations include: |
| | |
| | * Increment and decrement with wrap |
| | * Addition and subtraction |
| | * Minimum and maximum |
| | * Bitwise operators (AND, OR, XOR, etc.) |
| | * Masked OR operator |
| | * Exchange, and compare and exchange operators |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/AMD/shader_atomic_counter_ops.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.AMD.shader_atomic_counter_ops import * |
| | from OpenGL.raw.GL.AMD.shader_atomic_counter_ops import _EXTENSION_NAME |
| |
|
| | def glInitShaderAtomicCounterOpsAMD(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| |
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| | |
