[Bug 33648] New: Black line in Lightsmark with Z compression enabled (RV530)

[Bug 33648] New: Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

           Summary: Black line in Lightsmark with Z compression enabled
                    (RV530)
           Product: Mesa
           Version: git
          Platform: Other
               URL: http://dee.cz/lightsmark/Lightsmark2008.2.0.tar.bz2
        OS/Version: All
            Status: NEW
          Severity: minor
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: drakkk@centrum.cz


After recent zbuffer compression rework Lightsmark is the only remaining app
I've tested which is still not working properly here on RV530. There is a thick
black line across the screen in some scenes, particularly: "no radiosity","soft
shadows", "penumbra shadows" and the last scene.  Maybe this is a known issue
and there are many open bugs about HyperZ, however according to
db299a9f8244d53d9041fcdbd396a77ebe1f9e3e comment RV530 should just work. So I'm
reporting it isn't. Also this is not a regression, it was much worse before and
this is the only remaining issue here.

To be sure this isn't HiZ issue I've changed line 367 in r300_chipset.c to
"caps->hiz_ram = 0;" and it haven't changed anything.
r300: AA compression: NO, Z compression: YES, HiZ: NO

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

--- Comment #1 from Pavel Ondračka <drakkk@centrum.cz> 2011-01-28 05:54:33 PST ---
Created an attachment (id=42642)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=42642)
screenshot

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rankincj@googlemail.com

--- Comment #2 from Marek Olšák <maraeo@gmail.com> 2011-03-07 14:14:43 PST ---
*** Bug 35095 has been marked as a duplicate of this bug. ***

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

--- Comment #3 from Marek Olšák <maraeo@gmail.com> 2011-03-07 14:15:31 PST ---
Chris Rankin said it doesn't show up on RV350, so I guess it's RV530-specific.

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

--- Comment #4 from Marek Olšák <maraeo@gmail.com> 2011-03-07 14:17:46 PST ---
Nope, the black line shows up on R580 too (4 pipes).

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=33648

--- Comment #5 from Sven Arvidsson <sa@whiz.se> 2011-03-11 08:50:41 PST ---
Created an attachment (id=44363)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=44363)
Lightsmark with upper part of the screen corrupt

RV570 here, and Lightsmark seems to be the last app with hyper z.

The upper part of the screen is corrupt when hz is enabled. 

When RADEON_DEBUG=nozmask is used, the problem almost goes away, there's still
some corruption in the upper right corner though.

With RADEON_DEBUG=nohiz I'm only getting the black line you guys described.

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

--- Comment #6 from Alan Swanson <swanson@ukfsn.org> 2011-03-22 06:34:29 PDT ---
Created an attachment (id=44712)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=44712)
ut2004-zmask-corruption.jpg

Similarly on RV530 I'm seeing frequent (but relatively minor) corruption in
UT2004 with a number of maps which appears to be triangular blocks of old
scenes (not textures AFAICT). However these were not from previously rendered
frames at same location.

Running "RADEON_DEBUG=nozmask" removes the corruption. Example screenshot has;
- Under green DM_Junkyard label is thin line of another texture.
- Under green ONS_ArticStronghold labels there is sky textures, which when
standing on base platform appear in front or behind of alpha transparent
textures.

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

--- Comment #7 from almos <aaalmosss@gmail.com> 2011-05-27 07:10:29 PDT ---
(In reply to comment #6)
> Similarly on RV530 I'm seeing frequent (but relatively minor) corruption in
> UT2004 with a number of maps which appears to be triangular blocks of old
> scenes (not textures AFAICT). However these were not from previously rendered
> frames at same location.
The skybox is rendered into those tiles (perhaps Z order is wrong?). It's very
apparent on CTF-FaceClassic for example.

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

Marek Olšák <maraeo@gmail.com> changed:

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

--- Comment #8 from Marek Olšák <maraeo@gmail.com> ---
Lightsmark was fixed by the commit 0222b2bd4107b9e5cabfbc. Closing.

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[Bug 33648] Black line in Lightsmark with Z compression enabled (RV530)

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https://bugs.freedesktop.org/show_bug.cgi?id=33648

--- Comment #9 from Alan Swanson <swanson@ukfsn.org> ---
To confirm, this also fixes the UT2004 zmask issues reported here too. Thanks.

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