| | '''OpenGL extension SGIX.video_resize |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GLX.SGIX.video_resize to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension provides a means for doing swap or frame synchronous |
| | resizing/panning of the area |
| | that is to be magnified (or passed through) to the output |
| | video resolution. The purpose of this functionality is to provide a |
| | means of allowing an application to draw into a smaller viewport to |
| | reduce the time spent doing pixel fill. This reduced size viewport |
| | is then magnified up to the video output resolution using the |
| | SGIX_video_resize extension. This extension differs from SGIX_framezoom |
| | (number 57) in that it is post framebuffer resizing. Over rendering |
| | at swap rates and panning at frame rates is possible using frame synchronous |
| | update instead of swap synchronous update used for the fill reduction case. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/SGIX/video_resize.txt |
| | ''' |
| | from OpenGL import platform, constant, arrays |
| | from OpenGL import extensions, wrapper |
| | import ctypes |
| | from OpenGL.raw.GLX import _types, _glgets |
| | from OpenGL.raw.GLX.SGIX.video_resize import * |
| | from OpenGL.raw.GLX.SGIX.video_resize import _EXTENSION_NAME |
| |
|
| | def glInitVideoResizeSGIX(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
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| |
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| | |
