System Environment: -------------------------- --Platform: FC6 --Xf86_video_intel:6f92200db39a790c95c1fac64baf0bd41a70e481 --Mesa:e2ca788ae700aae75bf8d024c1374c38cc5574f9 --DRM:f1a99ddc14ebca303f20b6c23bd289fc887243ae --Kernel:2.6.22 Bug detailed description: -------------------------- This issue doesn't happen when INTEL_NO_TTM is set And this issue doesn't happen on 965 platform create a texture with GL_ALPHA format set glBlendFunc(GL_ZERO, GL_SRC_ALPHA); and enabled glEnable(GL_BLEND); render a polygon with this texture, but the alpha component turns out incorrect Reproduce steps: ---------------- start X compile and run the attached test case Current result: ---------------- the alpha component is not correct Expected result: ---------------- the alpha component should be correct
Created attachment 13104 [details] test case the correct result should look like this: buf[0, 0] = (0.000000, 0.000000, 0.000000, 0.501961) (0, 0) = [0.000000, 0.000000, 0.000000, 0.501961] (1, 0) = [0.000000, 0.000000, 0.000000, 0.501961] (2, 0) = [0.000000, 0.000000, 0.000000, 0.501961] (3, 0) = [0.000000, 0.000000, 0.000000, 0.149020] (0, 1) = [0.000000, 0.000000, 0.000000, 0.501961] (1, 1) = [0.000000, 0.000000, 0.000000, 0.501961] (2, 1) = [0.000000, 0.000000, 0.000000, 0.501961] (3, 1) = [0.000000, 0.000000, 0.000000, 0.149020] (0, 2) = [0.000000, 0.000000, 0.000000, 0.501961] (1, 2) = [0.000000, 0.000000, 0.000000, 0.501961] (2, 2) = [0.000000, 0.000000, 0.000000, 0.501961] (3, 2) = [0.000000, 0.000000, 0.000000, 0.149020] (0, 3) = [0.000000, 0.000000, 0.000000, 0.501961] (1, 3) = [0.000000, 0.000000, 0.000000, 0.501961] (2, 3) = [0.000000, 0.000000, 0.000000, 0.501961] (3, 3) = [0.000000, 0.000000, 0.000000, 0.149020]
Created attachment 13105 [details] xorg conf
seems this issue has gone with git tip code.
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