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'''OpenGL extension SGIX.interlace |
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This module customises the behaviour of the |
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OpenGL.raw.GL.SGIX.interlace 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 provides a way to interlace rows of pixels when |
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rasterizing pixel rectangles, and loading texture images. In this |
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context, interlacing means skiping over rows of pixels or texels |
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in the destination. This is useful for dealing with video data |
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since a single frame of video is typically composed from two images |
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or fields: one image specifying the data for even rows of the frame |
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and the other image specifying the data for odd rows of the frame. |
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The official definition of this extension is available here: |
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http://www.opengl.org/registry/specs/SGIX/interlace.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.interlace import * |
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from OpenGL.raw.GL.SGIX.interlace import _EXTENSION_NAME |
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def glInitInterlaceSGIX(): |
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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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