mesa: cc5b0ffae048824a6bdcaf43e0c8c2dd4a7ff14b (master) piglit fbo-luminance-alpha fails on softpipe and llvmpipe. $ ./bin/fbo-luminance-alpha -auto Testing FBO result, simple 1. Probe at (8,0) Expected: 0.300000 0.300000 0.300000 0.000000 Observed: 0.298039 0.000000 0.000000 0.000000 Testing FBO result, simple 2. Probe at (24,0) Expected: 0.600000 0.600000 0.600000 1.000000 Observed: 0.600000 0.000000 0.000000 1.000000 Testing FBO result, blending DST_ALPHA. Probe at (40,0) Expected: 0.400000 0.400000 0.400000 0.500000 Observed: 0.400000 0.000000 0.000000 0.501961 Testing FBO result, blending SRC_ALPHA. Probe at (56,0) Expected: 0.560000 0.560000 0.560000 0.400000 Observed: 0.556863 0.000000 0.000000 0.400000 Testing window result, simple 1. Testing window result, simple 2. Testing window result, blending DST_ALPHA. Testing window result, blending SRC_ALPHA. PIGLIT: {'result': 'fail' }
ad897fff7730298c21289768d9b1b55f3d166ac5 is the first bad commit commit ad897fff7730298c21289768d9b1b55f3d166ac5 Author: Brian Paul <brianp@vmware.com> Date: Wed Feb 29 20:55:50 2012 -0700 mesa: use _mesa_rebase_rgba_float/uint() in glReadPixels code See the comments for _mesa_rebase_rgba_float() for details. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=46679 NOTE: This is a candidate for the 8.0 branch. Reviewed-by: José Fonseca <jfonseca@vmware.com>
Fixed with piglit commit e0e42e201211aee728d601abfeb579c031c95840
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