| '''OpenGL extension IMG.framebuffer_downsample |
| |
| This module customises the behaviour of the |
| OpenGL.raw.GLES2.IMG.framebuffer_downsample to provide a more |
| Python-friendly API |
| |
| Overview (from the spec) |
| |
| This extension introduces the ability to attach color buffers to a |
| framebuffer that are at a lower resolution than the framebuffer itself, with |
| the GPU automatically downsampling the color attachment to fit. |
| |
| This can be useful for various post-process rendering techniques where it is |
| desirable to generate downsampled images in an efficient manner, or for a |
| lower resolution post-process technique. |
| |
| This extension exposes at least a 2 x 2 downscale. Other downsampling modes |
| may be exposed on the system and this can be queried. |
| |
| The official definition of this extension is available here: |
| http://www.opengl.org/registry/specs/IMG/framebuffer_downsample.txt |
| ''' |
| from OpenGL import platform, constant, arrays |
| from OpenGL import extensions, wrapper |
| import ctypes |
| from OpenGL.raw.GLES2 import _types, _glgets |
| from OpenGL.raw.GLES2.IMG.framebuffer_downsample import * |
| from OpenGL.raw.GLES2.IMG.framebuffer_downsample import _EXTENSION_NAME |
|
|
| def glInitFramebufferDownsampleIMG(): |
| '''Return boolean indicating whether this extension is available''' |
| from OpenGL import extensions |
| return extensions.hasGLExtension( _EXTENSION_NAME ) |
|
|
|
|
| |
