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'''OpenGL extension SGIX.flush_raster |
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This module customises the behaviour of the |
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OpenGL.raw.GL.SGIX.flush_raster to provide a more |
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Python-friendly API |
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Overview (from the spec) |
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This extensions provides a way to ensure that all raster operations |
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currently in the pipeline will be completed before the next |
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raster operation begins. We define a raster operation as an operation |
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that involves the rasterization stage of the OpenGL pipeline. |
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The implementation is free to decide what consitutes flushing the |
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raster subsystem. |
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The motivation is to allow accurate instrumentation by |
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including this call before stopping rasterization measurements. |
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There are cases where Finish() is used, but a FlushRaster() |
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would suffice, so this extension is deliberately kept independent |
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of the instruments extension. |
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The official definition of this extension is available here: |
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http://www.opengl.org/registry/specs/SGIX/flush_raster.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.SGIX.flush_raster import * |
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from OpenGL.raw.GL.SGIX.flush_raster import _EXTENSION_NAME |
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def glInitFlushRasterSGIX(): |
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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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