[Bug 109162] Bugs Bunny: Lost in Time

[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

            Bug ID: 109162
           Summary: Bugs Bunny: Lost in Time
           Product: Mesa
           Version: 18.2
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: smoki00790@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Current Debian Buster/Testing, Mesa 18.2.7, Kabini hardware...

 I am trying to run this near 20 years old Windows OpenGL game via WINE of
course...

 wine bugs.exe /b00 /full /skip_intro /ogl /x1920 /y1080

 But it shows half garbage as seens in picture, same is in window or whatever.

 LIBGL_ALWAYS_SOFTWARE=true shows same garbage.

 Trace actually render correctly (there are shadow bugs you could maybe ignore,
that is on Windows the same), so i am out of idea what this could be.

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #1 from smoki <smoki00790@gmail.com> ---
Created attachment 142904
  --> https://bugs.freedesktop.org/attachment.cgi?id=142904&action=edit
mess on the screen


 This is how it looks like. Broken presentation image i would say, as trace
shows it OK.

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #2 from smoki <smoki00790@gmail.com> ---

 Link to the trace:

 https://www.dropbox.com/s/tk2i1j6ownzh4px/bugs-trace.7z

 Anyway, this replays fine here too. It is just when i run a game actually this
mess came by.

 I tried to run game on a CPU by using software Mesa for Windows from here:

 http://fdossena.com/?p=mesa/index.frag

 With same version of software Mesa for Windows it also plays correctly.

 So no idea what this could be really :D

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #3 from smoki <smoki00790@gmail.com> ---

 So, software Mesa for Windows shows it correctly, while same version of
software Mesa for Linux via LIBGL_ALWAYS_SOFTWARE=true show this garbage ;)

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #4 from smoki <smoki00790@gmail.com> ---

 I tried various MESA version overrides and R600_DEBUG variables like no2d,
notiling and such to no avail, even tried to disable DRI3 with
LIBGL_DRI3_DISABLE and nope - mess is still there.

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #5 from smoki <smoki00790@gmail.com> ---

 And BTW forgot to mention... on AMD proprietary OpenGL driver this is fine.

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #6 from smoki <smoki00790@gmail.com> ---

 Ah OK, that Mesa for Windows uses LLVM 6, while Debian Mesa uses LLVM 7... so
could be an LLVM regression.

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #7 from smoki <smoki00790@gmail.com> ---

 But replaying of trace show it fine, so it isn't LLVM :D

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #8 from smoki <smoki00790@gmail.com> ---

 Got this old OpenGL game accelerated, by using gldirect:

 http://sourceforge.net/projects/gldirect/

 That seems supports OpenGL 1.x to D3D9 just fine :) And then asking d3dadapter
nine to play opengl game and everything looks fine this way.

 Well, this bug is still there since this is OpenGL game and should play on
OpenGL driver fine.

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #9 from smoki <smoki00790@gmail.com> ---

 OK, found an variable that helped :)

 always_have_depth_buffer=true wine bugs.exe

 makes it showing up on screen normally.

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #10 from Harry Wilson <pathankotaxi@gmail.com> ---
i am also getting same bug
https://pathankottaxi.hatenablog.com/
https://pathankottaxi.in/pathankot-taxi-service/

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

--- Comment #11 from Roland Scheidegger <sroland@vmware.com> ---
These kind of bugs is usually due to app error (not requesting a depth buffer
but still needing one, relying on the implementation to provide one anyway).
Although in this case, I suppose wine could be involved too, maybe there's some
pecularities when emulating wgl with glx.
Seems unlikely to me though that the bug is in mesa code.

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[Bug 109162] Bugs Bunny: Lost in Time

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https://bugs.freedesktop.org/show_bug.cgi?id=109162

smoki <smoki00790@gmail.com> changed:

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

--- Comment #12 from smoki <smoki00790@gmail.com> ---

 OK, self variabled only in Mesa... closing then as worksforme.

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