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'''OpenGL extension ARB.ES3_1_compatibility
This module customises the behaviour of the
OpenGL.raw.GL.ARB.ES3_1_compatibility to provide a more
Python-friendly API
Overview (from the spec)
This extension adds support for features of OpenGL ES 3.1 that are
missing from OpenGL 4.4. Enabling these features will ease the process
of porting applications from OpenGL ES 3.1 to OpenGL.
In particular this adds the following features:
- a new MemoryBarrierByRegion API which is potentially more efficient
for specific localized memory access patterns.
- increases the minimum required size of SSBOs to 2^27 (128 MB).
- support for GLSL ES version 310 (ie #version 310 es).
- a new GLSL built-in function, imageAtomicExchange, which performs atomic
exchanges on r32f floating point images.
- a new GLSL built-in fragment shader input, gl_HelperInvocation, that
identifies whether the current fragment shader input is a helper
invocation. Fragment shader code can use this variable to skip performing
operations that are useless or potentially dangerous for helper
invocations.
- a new GLSL built-in constant for the maximum supported samples:
gl_MaxSamples.
- a number of new GLSL built-in constants mirroring the API limits for
image uniforms: gl_Max*ImageUniforms, gl_MaxCombinedShaderOutputResources.
- new GLSL built-in functions which extend mix() to select between int,
uint, and bool components.
- add the "coherent" qualifier to all memory variables taken by the GLSL
built-in atomic* and imageAtomic* functions.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/ARB/ES3_1_compatibility.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.ES3_1_compatibility import *
from OpenGL.raw.GL.ARB.ES3_1_compatibility import _EXTENSION_NAME
def glInitEs31CompatibilityARB():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
### END AUTOGENERATED SECTION
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