File: shader_atomic_float64.py

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'''OpenGL extension NV.shader_atomic_float64

This module customises the behaviour of the 
OpenGL.raw.GL.NV.shader_atomic_float64 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 shared memory with double-precision 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 double-precision floating-point values into buffer
	memory across multiple (possibly concurrent) shader invocations.
	
	This extension provides GLSL support for atomics targeting double-precision
	floating-point pointers (if NV_gpu_shader5 is supported).
	Additionally, assembly opcodes for these operations are 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_float64.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_float64 import *
from OpenGL.raw.GL.NV.shader_atomic_float64 import _EXTENSION_NAME

def glInitShaderAtomicFloat64NV():
    '''Return boolean indicating whether this extension is available'''
    from OpenGL import extensions
    return extensions.hasGLExtension( _EXTENSION_NAME )


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