path: root/src/gallium/tools
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authorMarek Olšák <>2014-01-08 01:09:15 +0100
committerMarek Olšák <>2014-01-13 15:48:07 +0100
commit9baa45f78b8ca7d66280e36009b6a685055d7cd6 (patch)
tree1aa17409335d9643983dfcd7abbbcc0126581817 /src/gallium/tools
parent9bf9578c1b79e5622a2325f1a2bb80fcf0e22a6d (diff)
st/mesa: bind NULL colorbuffers as specified by glDrawBuffers
An example why it is required: Let's say there's a fragment shader writing to gl_FragData[0..1]. The user calls: glDrawBuffers(2, {GL_NONE, GL_COLOR_ATTACHMENT0}); That means gl_FragData[0] is unused and gl_FragData[1] is written to GL_COLOR_ATTACHMENT0. st/mesa was skipping the GL_NONE draw buffer, therefore gl_FragData[0] was written to GL_COLOR_ATTACHMENT0, which was wrong. This commit fixes it, but drivers must also be fixed not to crash when binding NULL colorbuffers. There is also a new set of piglit tests for this. The MSAA state also had to be fixed not to crash when reading fb->cbufs[0]. Reviewed-by: Brian Paul <>
Diffstat (limited to 'src/gallium/tools')
0 files changed, 0 insertions, 0 deletions