Bug 98518

Summary: [r600g, bisected] regression: NI/Turks MSAA texture corruption with FreeCAD and Wine games
Product: Mesa Reporter: Dieter Nützel <Dieter>
Component: Drivers/Gallium/r600Assignee: Default DRI bug account <dri-devel>
Status: CLOSED FIXED QA Contact: Default DRI bug account <dri-devel>
Severity: normal    
Priority: medium CC: emil.l.velikov
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
i915 platform: i915 features:
Attachments: FreeCAD-MSAA-8x-Texure-Bug.png

Description Dieter Nützel 2016-10-31 18:34:45 UTC
Created attachment 127646 [details]

It show up as texture corruption with FreeCAD (MSAA 8x context)
and under LS2015 (wine-1.9.21~gallium_nine+staging / MSAA 2+).

/opt/mesa> git bisect good
81a95946dab730c1cfcf04ac1373cea5f7908f65 is the first bad commit
commit 81a95946dab730c1cfcf04ac1373cea5f7908f65
Author: Marek Olšák <marek.olsak@amd.com>
Date:   Thu Oct 20 22:57:03 2016 +0200

    gallium/radeon: fold radeon_winsys::surface_best into radeon/winsys
    Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

:040000 040000 2f6cc85574d5748ddd083215bca3a47496d58f3d 097994b4a81f267d45346adea94746745bb0085f M src

git revert 81a9594

will NOT work.
Comment 1 Dieter Nützel 2016-10-31 18:35:44 UTC
Created attachment 127647 [details]
Comment 2 Dieter Nützel 2016-11-03 03:08:54 UTC
Fix is underway.

Have a look at Mesa-dev:


-    if (!(surf_ws->flags & RADEON_SURF_IMPORTED)) {

A combination of Marek's idea plus Michel's patch
[Mesa-dev] [PATCH 3/4] gallium/radeon: Use flags parameter in radeon_winsys_surface_init


both (FreeCAD and LS2015 on Wine) for me.
Comment 3 Marek Olšák 2016-11-05 17:37:33 UTC
The fix has been pushed to master. Please test and close the bug if it's fixed. Thanks.
Comment 4 Dieter Nützel 2016-11-05 19:08:51 UTC
Fixed by git commit in master.

Thanks Marek!

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