| | '''OpenGL extension OML.interlace |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.OML.interlace to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension provides a way to interlace rows of pixels when |
| | drawing, reading, or copying pixel rectangles or texture images. In |
| | this context, interlacing means skiping over rows of pixels or |
| | texels in the destination. This is useful for dealing with video |
| | data since a single frame of video is typically composed from two |
| | images or fields: one image specifying the data for even rows of the |
| | frame and the other image specifying the data for odd rows of the |
| | frame. |
| | |
| | The functionality provided by this extension is a combination |
| | of the older SGIX_interlace and INGR_interlace_read extensions, |
| | with changes applying interlacing to texture image queries. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/OML/interlace.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.OML.interlace import * |
| | from OpenGL.raw.GL.OML.interlace import _EXTENSION_NAME |
| |
|
| | def glInitInterlaceOML(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| |
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| | |
