| | '''OpenGL extension AMD.pinned_memory |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.AMD.pinned_memory to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension defines an interface that allows improved control |
| | of the physical memory used by the graphics device. |
| | |
| | It allows an existing page of system memory allocated by the application |
| | to be used as memory directly accessible to the graphics processor. One |
| | example application of this functionality would be to be able to avoid an |
| | explicit synchronous copy with sub-system of the application; for instance |
| | it is possible to directly draw from a system memory copy of a video |
| | image. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/AMD/pinned_memory.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.AMD.pinned_memory import * |
| | from OpenGL.raw.GL.AMD.pinned_memory import _EXTENSION_NAME |
| |
|
| | def glInitPinnedMemoryAMD(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| |
|
| | |
