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