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'''OpenGL extension EXT.convolution |
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This module customises the behaviour of the |
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OpenGL.raw.GL.EXT.convolution to provide a more |
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Python-friendly API |
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Overview (from the spec) |
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This extension defines 1 and 2 dimensional convolution operations |
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at a fixed location in the pixel transfer process. Thus pixel drawing, |
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reading, and copying, as well as texture image definition, are all |
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candidates for convolution. The convolution kernels are themselves |
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treated as 1 and 2 dimensional images, which can be loaded from |
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application memory or from the framebuffer. |
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This extension is designed to accommodate 3D convolution, but the |
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API is left for a future extension. |
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The official definition of this extension is available here: |
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http://www.opengl.org/registry/specs/EXT/convolution.txt |
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''' |
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from OpenGL import platform, constant, arrays |
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from OpenGL import extensions, wrapper |
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import ctypes |
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from OpenGL.raw.GL import _types, _glgets |
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from OpenGL.raw.GL.EXT.convolution import * |
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from OpenGL.raw.GL.EXT.convolution import _EXTENSION_NAME |
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def glInitConvolutionEXT(): |
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'''Return boolean indicating whether this extension is available''' |
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from OpenGL import extensions |
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return extensions.hasGLExtension( _EXTENSION_NAME ) |
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glConvolutionFilter1DEXT=wrapper.wrapper(glConvolutionFilter1DEXT).setInputArraySize( |
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'image', None |
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) |
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glConvolutionFilter2DEXT=wrapper.wrapper(glConvolutionFilter2DEXT).setInputArraySize( |
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'image', None |
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) |
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glConvolutionParameterfvEXT=wrapper.wrapper(glConvolutionParameterfvEXT).setInputArraySize( |
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'params', None |
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) |
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glConvolutionParameterivEXT=wrapper.wrapper(glConvolutionParameterivEXT).setInputArraySize( |
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'params', None |
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) |
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glGetConvolutionParameterfvEXT=wrapper.wrapper(glGetConvolutionParameterfvEXT).setOutput( |
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'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True |
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) |
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glGetConvolutionParameterivEXT=wrapper.wrapper(glGetConvolutionParameterivEXT).setOutput( |
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'params',size=_glgets._glget_size_mapping,pnameArg='pname',orPassIn=True |
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) |
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glSeparableFilter2DEXT=wrapper.wrapper(glSeparableFilter2DEXT).setInputArraySize( |
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'column', None |
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).setInputArraySize( |
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'row', None |
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) |
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