[Bug 28033] New: [r300, r300g] World of Warcraft login screen is "blocky" with RV350

[Bug 28033] New: [r300, r300g] World of Warcraft login screen is "blocky" with RV350

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28033

           Summary: [r300, r300g] World of Warcraft login screen is
                    "blocky" with RV350
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: rankincj@googlemail.com


Created an attachment (id=35513)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35513)
Screenshot of the World of Warcraft login page

The login screen for World of Warcraft contains a "snow scape". However, some
of the snow looks as if it's been misrendered as blocks.

This bug happens both with "classic" Mesa and gallium. The card is an AGP
Radeon 9550 (RV350); Linux 2.6.33.3, KMS, xf86-xorg-drv from git.

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

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https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #1 from mtmkls@freemail.hu 2010-06-19 14:12:57 PDT ---
This looks like a duplicate of #8056. Both r300c and r300g have problems
setting up tiling on r3xx cards.

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

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https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #2 from Marek Olšák <maraeo@gmail.com> 2010-06-19 14:28:31 PDT ---
To my knowledge, tiling in r300g just works.

Chris, can you try the game again with current mesa master?

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

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https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #3 from Chris Rankin <rankincj@googlemail.com> 2010-06-19 15:47:06 PDT ---
(In reply to comment #2)
> Chris, can you try the game again with current mesa master?

It's still broken with mesa master and a 2.6.33.5 kernel. Do I need a 2.6.34.x
kernel instead?

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

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https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #4 from Marek Olšák <maraeo@gmail.com> 2010-06-19 16:11:41 PDT ---
No, you don't.

I think I know that's wrong. I'll try to fix it soon.

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

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https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #5 from Marek Olšák <maraeo@gmail.com> 2010-06-19 16:12:44 PDT ---
s/that/what/

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

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https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #6 from Marek Olšák <maraeo@gmail.com> 2010-06-19 21:18:49 PDT ---
I've pushed the fix to master. Can you test now?

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #7 from Chris Rankin <rankincj@googlemail.com> 2010-06-20 05:09:16 PDT ---
(In reply to comment #6)
> I've pushed the fix to master. Can you test now?

Yes, the login screen looks *much* better under r300g now, thanks :-). But the
exact same bug is still present with r300c. Any chance that this fix can be
applied to r300c too, please?

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

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https://bugs.freedesktop.org/show_bug.cgi?id=28033

Marek Olšák <maraeo@gmail.com> changed:

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

--- Comment #8 from Marek Olšák <maraeo@gmail.com> 2010-06-20 05:15:25 PDT ---
r300c is no longer being developed, though it should be quite easy to backport
the fix. If there is any other issue with r300g, please file another bug.
Closing...

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #9 from Chris Rankin <rankincj@googlemail.com> 2010-06-20 05:35:19 PDT ---
(In reply to comment #8)
> r300c is no longer being developed, though it should be quite easy to backport
> the fix.

Thanks; backporting the fix would be a good idea because Gallium is currently
very, VERY slow with AGP cards... ;-).

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

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https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #10 from Marek Olšák <maraeo@gmail.com> 2010-06-20 05:56:51 PDT ---
Created an attachment (id=36376)
 View: https://bugs.freedesktop.org/attachment.cgi?id=36376
 Review: https://bugs.freedesktop.org/review?bug=28033&attachment=36376

AGP patch

Does the attached patch improve the situation on your AGP chipset?

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #11 from Chris Rankin <rankincj@googlemail.com> 2010-06-20 06:26:34 PDT ---
(In reply to comment #10)
> Does the attached patch improve the situation on your AGP chipset?

No, I'm afraid not. My test case is to run celestia, and then try to rotate the
Earth by right-dragging it with the mouse. This is speedy with r300c, but drags
horribly with r300g, even with your patch applied.

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[Bug 28033] [r300, r300g] World of Warcraft login screen is "blocky" with RV350

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28033

--- Comment #12 from Chris Rankin <rankincj@googlemail.com> 2010-06-27 13:05:54 PDT ---
(In reply to comment #8)
> r300c is no longer being developed, though it should be quite easy to backport
> the fix. 

I've had a look at backporting this fix to r300c myself because I suspect that
it's one of the very last bugs keeping WoW "second rate" on Radeon hardware
with classic Mesa. (Gallium would currently be unplayably slow, even if it
didn't crash first...) However, while the fix seems conceptually described as
"calculate a texture cache region and set these bits in the texture format, I
cannot even begin to identify which are the corresponding parts of the r300c
code that would need to be changed in order to backport the fix correctly.

So I'm asking again: can someone please backport this fix into classic Mesa? It
would seem like an obvious candidate, because it's a genuinely identified
problem that users in the Real World are actually hitting, and where using
Gallium instead is simply not possible.

Thank you.

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