| | '''OpenGL extension SGIX.async_pixel |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.SGIX.async_pixel to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension introduces a new asynchronous mode for texture |
| | download, pixel download and pixel readback commands. It allows |
| | programs to transfer textures or images between the host and the |
| | graphics accelerator in parallel with the execution of other |
| | graphics commands (possibly taking advantage of a secondary path |
| | to the graphics accelerator). It also allows programs to issue |
| | non-blocking pixel readback commands that return immediately after |
| | they are issued so that the program can issue other commands while |
| | the readback takes place. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/SGIX/async_pixel.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.SGIX.async_pixel import * |
| | from OpenGL.raw.GL.SGIX.async_pixel import _EXTENSION_NAME |
| |
|
| | def glInitAsyncPixelSGIX(): |
| | '''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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| | |
