https://bugs.freedesktop.org/show_bug.cgi?id=35312
Summary: r600g: Automatic mipmap generation doesn't work properly Product: Mesa Version: git Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r600 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: wielkiegie@gmail.com
Automatic mipmap generation using glGenerateMipmap (util_gen_mipmap) fills mipmaps with wrong rendering. Piglit tests fbo-generatemipmap* are failing. Software fallback works properly, as does llvmpipe.
Hardware: rv670 (HD3870), amd64 Software: kernel 2.6.38rc8, mesa from git, libdrm from git
https://bugs.freedesktop.org/show_bug.cgi?id=35312
--- Comment #1 from Francis Whittle FJ.Whittle@gmail.com 2011-04-13 22:36:09 PDT --- Created an attachment (id=45598) View: https://bugs.freedesktop.org/attachment.cgi?id=45598 Review: https://bugs.freedesktop.org/review?bug=35312&attachment=45598
short patch to test problem
Can you try this patch to mesa and say if it fixes the issue?
https://bugs.freedesktop.org/show_bug.cgi?id=35312
--- Comment #2 from Gustaw Smolarczyk wielkiegie@gmail.com 2011-04-15 00:40:53 PDT --- Indeed it helps. Piglit test fbo-generatemipmap-formats is still failing, but may be unrelated problem. Basic functionality now works properly.
https://bugs.freedesktop.org/show_bug.cgi?id=35312
--- Comment #3 from Andy Furniss lists@andyfurniss.entadsl.com 2011-04-15 04:30:30 PDT --- (In reply to comment #1)
Created an attachment (id=45598)
View: https://bugs.freedesktop.org/attachment.cgi?id=45598 Review: https://bugs.freedesktop.org/review?bug=35312&attachment=45598
short patch to test problem
Can you try this patch to mesa and say if it fixes the issue?
It also fixes a rv670 lodbias regression -
https://bugs.freedesktop.org/show_bug.cgi?id=35367
https://bugs.freedesktop.org/show_bug.cgi?id=35312
--- Comment #4 from Francis Whittle FJ.Whittle@gmail.com 2011-04-16 00:08:05 PDT --- Patch is strictly a work-around and a bloody hack (dripping even). Indicates there's something should be happening in the driver code that isn't. "Fixes" was a bad word choice.
Anyway, I can confirm this bug on RS880 (Radeon HD 4200).
https://bugs.freedesktop.org/show_bug.cgi?id=35312
Alex Deucher agd5f@yahoo.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED
--- Comment #5 from Alex Deucher agd5f@yahoo.com 2011-05-05 22:57:40 PDT --- This should be fixed by the following patches: http://cgit.freedesktop.org/mesa/mesa/commit/?id=d116fe51c1aee3453290ac30ffe... http://cgit.freedesktop.org/mesa/mesa/commit/?id=5066f7cd0e010db46b42f8f08a3... http://cgit.freedesktop.org/mesa/mesa/commit/?id=bf7a3ddca6fcc73eebdd9afdc45...
https://bugs.freedesktop.org/show_bug.cgi?id=35312
--- Comment #6 from Francis Whittle FJ.Whittle@gmail.com 2011-05-11 02:00:42 PDT --- Still doesn't work on RS880 until it's added to the conditional on line 813 of r600_hw_context.c
I wonder if this should apply to rv620, rv635 (and rs780?) also?
https://bugs.freedesktop.org/show_bug.cgi?id=35312
--- Comment #7 from Alex Deucher agd5f@yahoo.com 2011-05-11 09:15:29 PDT --- fixed in b9f2750900efb2667bc1dfc428b71d8a08b212be.
rv610/630/620/635 all work fine without the additional hack.
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