'''OpenGL extension ARB.shader_image_size

This module customises the behaviour of the 
OpenGL.raw.GL.ARB.shader_image_size to provide a more 
Python-friendly API

Overview (from the spec)
	This extension provides GLSL built-in functions allowing shaders to query
	the size of an image.

The official definition of this extension is available here:
http://www.opengl.org/registry/specs/ARB/shader_image_size.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.ARB.shader_image_size import *
from OpenGL.raw.GL.ARB.shader_image_size import _EXTENSION_NAME

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


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