| '''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 ) |
|
|
|
|
| |
