OpenGL.GL.EXT.GL_422_pixels

OpenGL extension EXT.GL_422_pixels

This module customises the behaviour of the OpenGL.raw.GL.EXT.GL_422_pixels to provide a more Python-friendly API

Overview (from the spec)

This extension provides support for converting 422 pixels in host memory to 444 pixels as part of the pixel storage operation.

The pixel unpack storage operation treats a 422 pixel as a 2 element format where the first element is C (chrominance) and the second element is L (luminance). Luminance is present on all pixels; a full chrominance value requires two pixels.

The pixel pack storage operation converts RGB to a 422 pixel defined as a 2 element format where the first element stored is C (chrominance) and the second element stored is L (luminance). Luminance is present on all pixels; a full chrominance value requires two pixels.

Both averaging and non-averaging is supported for green and blue assignments for pack and unpack operations.

The official definition of this extension is available here: http://www.opengl.org/registry/specs/EXT/GL_422_pixels.txt