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| author | Anuj Phogat <anuj.phogat@gmail.com> | 2015-06-11 16:48:26 -0700 |
|---|---|---|
| committer | Anuj Phogat <anuj.phogat@gmail.com> | 2015-07-24 10:48:58 -0700 |
| commit | c59c0f8a42652603da7f89e3270897cb685fe76b (patch) | |
| tree | 3a02959f53682d65f20e73d118a8c39459b1dfed /src/mesa/main/readpix.c | |
| parent | 9fff00d387cacf7820c344324820cab764541762 (diff) | |
| download | external_mesa3d-c59c0f8a42652603da7f89e3270897cb685fe76b.zip external_mesa3d-c59c0f8a42652603da7f89e3270897cb685fe76b.tar.gz external_mesa3d-c59c0f8a42652603da7f89e3270897cb685fe76b.tar.bz2 | |
mesa: Add a helper function _mesa_need_luminance_to_rgb_conversion()
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Diffstat (limited to 'src/mesa/main/readpix.c')
| -rw-r--r-- | src/mesa/main/readpix.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/mesa/main/readpix.c b/src/mesa/main/readpix.c index 25a0987..ac46f7e 100644 --- a/src/mesa/main/readpix.c +++ b/src/mesa/main/readpix.c @@ -60,6 +60,24 @@ _mesa_need_rgb_to_luminance_conversion(mesa_format texFormat, GLenum format) format == GL_LUMINANCE_ALPHA_INTEGER_EXT); } +/** + * Return true if the conversion L,I to RGB conversion is needed. + */ +GLboolean +_mesa_need_luminance_to_rgb_conversion(GLenum srcBaseFormat, + GLenum dstBaseFormat) +{ + return (srcBaseFormat == GL_LUMINANCE || + srcBaseFormat == GL_LUMINANCE_ALPHA || + srcBaseFormat == GL_INTENSITY) && + (dstBaseFormat == GL_GREEN || + dstBaseFormat == GL_BLUE || + dstBaseFormat == GL_RG || + dstBaseFormat == GL_RGB || + dstBaseFormat == GL_BGR || + dstBaseFormat == GL_RGBA || + dstBaseFormat == GL_BGRA); +} /** * Return transfer op flags for this ReadPixels operation. |