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This commit is contained in:
Brian Paul
2003-09-03 23:04:31 +00:00
parent 56e9efa15d
commit afc0428b5c
4 changed files with 29 additions and 22 deletions
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12
docs/MESA_ycbcr_texture.spec
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@@ -31,11 +31,12 @@ Dependencies
Overview
This extension supports texture images in the YCbCr format. There is
no support for converting YCbCr images to RGB or vice versa. The
texture's YCbCr colors are converted to RGB during texture sampling.
Only 2D texture images are supported (not glDrawPixels, glReadPixels,
etc).
This extension supports texture images stored in the YCbCr format.
There is no support for converting YCbCr images to RGB or vice versa
during pixel transfer. The texture's YCbCr colors are converted to
RGB during texture sampling, after-which, all the usual per-fragment
operations take place. Only 2D texture images are supported (not
glDrawPixels, glReadPixels, etc).
A YCbCr pixel (texel) is a 16-bit unsigned short with two components.
The first component is luminance (Y). For pixels in even-numbered
@@ -196,3 +197,4 @@ Revision History
20 September 2002 - Initial draft
29 April 2003 - minor updates
3 September 2003 - further clarify when YCbCr->RGB conversion takes place