[Bug 32634] New: [r300g, bisected] Massive corruption in Unigine Sanctuary

[Bug 32634] New: [r300g, bisected] Massive corruption in Unigine Sanctuary

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=32634

           Summary: [r300g, bisected] Massive corruption in Unigine
                    Sanctuary
           Product: Mesa
           Version: git
          Platform: Other
               URL: http://www.unigine.com/download/#sanctuary
        OS/Version: All
            Status: NEW
          Keywords: regression
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: drakkk@centrum.cz


Starting with commit 4e52e8f746e3565bf3fe9ba8e4e3744ce0302478 rendering is
almost completely broken. There are black artifacts all over the screen. 

4e52e8f746e3565bf3fe9ba8e4e3744ce0302478 is the first bad commit
commit 4e52e8f746e3565bf3fe9ba8e4e3744ce0302478
Author: Dave Airlie <airlied@redhat.com>
Date:   Sat Dec 18 10:40:33 2010 +1000

    r300g: add support for color0 writes to all bound color buffers.

    Thanks to Marek Olšák for making my initial attempt actually work.

    Signed-off-by: Dave Airlie <airlied@redhat.com>

Reverting this commit makes the problem go away.

My configuration:
Mesa: 876effb0e717e8e64050662f6ffa286c22065f5c
Kernel: 2.6.36
GPU: RV530

To reproduce you need either 2.2 version of the Unigine Sanctuary benchmark or
2.3 version + patch to enable GL_ARB_half_float_pixel.
http://lists.freedesktop.org/archives/mesa-dev/2010-December/004549.html
libtxc_dxtn.so is also required.

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[Bug 32634] [r300g, bisected] Massive corruption in Unigine Sanctuary

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=32634

--- Comment #1 from Pavel Ondračka <drakkk@centrum.cz> 2010-12-24 02:15:38 PST ---
Created an attachment (id=41416)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41416)
screenshot

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[Bug 32634] [r300g, bisected] Massive corruption in Unigine Sanctuary

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=32634

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #2 from Marek Olšák <maraeo@gmail.com> 2011-01-06 10:10:23 PST ---
Fixed with c60f1d8b007625f62a53010bb75e70462eb970ae.

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