[Bug 77785] New: (radeonsi) Some lighting issues in games, textures goes black

[Bug 77785] New: (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

          Priority: medium
            Bug ID: 77785
          Assignee: dri-devel@lists.freedesktop.org
           Summary: (radeonsi) Some lighting issues in games, textures
                    goes black
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: smoki00790@gmail.com
          Hardware: x86 (IA32)
            Status: NEW
           Version: 10.1
         Component: Drivers/Gallium/radeonsi
           Product: Mesa

Created attachment 97777
  --> https://bugs.freedesktop.org/attachment.cgi?id=97777&action=edit
bad case

Athlon 5350 (so Radeon R3 or Radeon 8400), current Debian Sid and mesa 10.1. I
also tried current mesa git master 10-devel, kernel 3.15-rc3, etc... the same
issue with lighting appear. hyperz (enabled/disabled) does not metter here.

 So, in wine with some opengl games (i guess native are also affected, but not
found example) for example AirStrike3D or 18 WoS: Pedal to the Metal games. In
18 WoS: Pedal to the Metal. issue appear when i turn on truck headlights,
everything beside headlights goes black of course until i turn off
headlights... some screenshots i will attach.

 And yeah swrast works OK, fglrx too :)

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

smoki <smoki00790@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #97777|text/plain                  |image/png
          mime type|                            |

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #1 from smoki <smoki00790@gmail.com> ---
Created attachment 97778
  --> https://bugs.freedesktop.org/attachment.cgi?id=97778&action=edit
good case

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #2 from smoki <smoki00790@gmail.com> ---
Created attachment 97780
  --> https://bugs.freedesktop.org/attachment.cgi?id=97780&action=edit
bad case

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #3 from smoki <smoki00790@gmail.com> ---
Created attachment 97781
  --> https://bugs.freedesktop.org/attachment.cgi?id=97781&action=edit
good case (swrast)

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

smoki <smoki00790@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #97781|text/plain                  |image/png
          mime type|                            |

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #4 from smoki <smoki00790@gmail.com> ---
Created attachment 97786
  --> https://bugs.freedesktop.org/attachment.cgi?id=97786&action=edit
good case (swrast)

 Oh, wrong screenshot earlier... forgot to turn on headlights with swrast :).
So this good one with swrast, how it need to be ;).

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

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

 Tried 10.0.5 now also have this issue, so all 10.x.x are affected... not sure
how far backwards i can go with kabini, but also maybe it is not regression :).

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #6 from Michel Dänzer <michel@daenzer.net> ---
Is there anything interesting in the game's terminal output, e.g. related to
shader compile failures?

If not, can you create an apitrace demonstrating the problem?

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

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

 I think i see nothing in console... Tried to make short traces of both cases
:).

 https://dl.dropboxusercontent.com/u/74553632/traces.zip

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

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

 Don't have a time for this right now, but better this with turn on/off
headlights i think clearly show behavior, hope it is reproducible :).

 https://dl.dropboxusercontent.com/u/74553632/pttm_trace2.7z

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #9 from Rafael Castillo <jrch2k10@gmail.com> ---
confirmed on Cape Verde 7770 running the traces

llvm 3.5svn at may 16, mesa git, xorg-1.16

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #10 from Michel Dänzer <michel@daenzer.net> ---
smoki, your comments on Phoronix don't make much sense I'm afraid.

First of all, there's no such thing as no vertex or pixel shader for a Gallium
driver. The state tracker always provides both shaders to the driver, even if
they don't do anything but pass through values.

I don't think there's anything particularly special about this bug; someone
will just have to track down and fix it. Your apitraces will be useful for
that, thanks.

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #11 from smoki <smoki00790@gmail.com> ---
 Maybe i need to explain that :). What i am talking there is that PTTM game
supports different reder paths: GL1X, ARB, NV1X, NV2X, R2XX and ARB2.
When you started that game it query for extensions, select the best but in
settings also let you choose some different if available. Of course  NV1X, NV2X
and R2XX paths are not supported by radeonsi and thase are not listed.  So i
have there so called ARB2 by default which shows a bug, so i tried ARB and GL1X
these also shows a bug.

 Now i tried next game in the series 18 Wheels of Steel American Long Haul,
that supports these and some more NV3X and NV4X, but that is for nvidia so not
listed.
That game shows the same bug with ARB, ARB1 paths but now works with ARB2 :) -
that is the only render path which does not have this bug. And why, in PTTM
ARB2 query only for fragment program extension, but in ALH it query for both
vertex and fragment program extension.

 So what i am saying there is, bug is not there when game use both, but bug is
there in any different situation when both are not used :).

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #12 from smoki <smoki00790@gmail.com> ---
 And of course then i came to the that AirStrike3D game case, simple OpenGL 1.2
game i think which does not use any of these but show the same bug :). That
game can i think can work without extensions at all, but it enable some like
multitexture, vertex arrays, texture env add and texture combine when
available.

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--- Comment #13 from smoki <smoki00790@gmail.com> ---
Created attachment 99217
  --> https://bugs.freedesktop.org/attachment.cgi?id=99217&action=edit
STK-black


 Nah, i found now another blackiness in another game case now when FBO is not
used :D. Maybe this is problem only with some formats used, i think i will
checkeout this :).

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

smoki <smoki00790@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #99217|text/plain                  |image/png
          mime type|                            |

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #14 from smoki <smoki00790@gmail.com> ---

 It is XRGB, MESA_FORMAT_B8G8R8X8_UNORM but need to checked it out in real
situations... a think intel disable support for this "memory saver" format in
screen, but radeon in classic and gallium leave it enabled :). Does that format
need to be supported anymore?

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #15 from smoki <smoki00790@gmail.com> ---
 Not sure how to not effectively not expose that format for radeonsi:

http://lists.freedesktop.org/archives/mesa-dev/2013-January/033029.html

 In dri2.c, dri_screen.c, dri_drawable.c... :) ?

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #16 from smoki <smoki00790@gmail.com> ---
 Disabling XRGB it in following files fixes an issue in supertuxkart non FBO
case :)

src/gallium/state_trackers/dri/common/dri_screen.c
src/mesa/drivers/dri/radeon/radeon_screen.c

 But this is another problem, unsolvable by this :(.

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #17 from smoki <smoki00790@gmail.com> ---

 Actually AirStrike3D is also fixed by not exposing XRGB :). I didn't mention
that game also needs to be running under MESA_EXTENSION_MAX_YEAR=2003 env ;).

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #18 from smoki <smoki00790@gmail.com> ---
 So i disabled it like in this commit, array size undefined and remove it:

http://cgit.freedesktop.org/mesa/mesa/commit/?id=75b7e1df139676f2456fea4d3a57cf0044d8409e

 For PTTM and ATH games that does not help, but looks very similar to be format
issue... it just needs alpha there but not got that :).

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--- Comment #19 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #14)
> It is XRGB, MESA_FORMAT_B8G8R8X8_UNORM but need to checked it out in real
> situations... a think intel disable support for this "memory saver" format
> in screen, but radeon in classic and gallium leave it enabled :).

MESA_FORMAT_B8G8R8X8_UNORM has nothing to do with memory saving (it's the same
as MESA_FORMAT_B8G8R8A8_UNORM as far as memory layout is concerned), it just
means that the contents of the 'alpha' channel in memory are ignored.


> Does that format need to be supported anymore?

Yes. We need to find out where and how this format ends up being used
incorrectly. Note that this might be in Wine / in the apps themselves.


Anyway, your comments #17 and #18 mean that the PTTM/ATH and AirStrike3D issues
are probably not one and the same bug and need to be tracked separately. The
AirStrike3D and SuperTuxKart issues might be related, but it's better to assume
they're separate as well for now, to avoid cluttering up a single report with
unrelated issues.

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--- Comment #20 from smoki <smoki00790@gmail.com> ---
Created attachment 99363
  --> https://bugs.freedesktop.org/attachment.cgi?id=99363&action=edit
Trine 2 - radeon


 One more example of those blackiness, with Trine 2 game. Game is also
partially black like WoS games, so maybe it is the same issue :).

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--- Comment #21 from smoki <smoki00790@gmail.com> ---
Created attachment 99364
  --> https://bugs.freedesktop.org/attachment.cgi?id=99364&action=edit
Trine 2 - fglrx

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--- Comment #22 from Alex Deucher <agd5f@yahoo.com> ---
(In reply to comment #20)
> Created attachment 99363 [details]
> Trine 2 - radeon
> 
> 
>  One more example of those blackiness, with Trine 2 game. Game is also
> partially black like WoS games, so maybe it is the same issue :).

You are probably seeing bug 66067 for trine 2.

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--- Comment #23 from smoki <smoki00790@gmail.com> ---
(In reply to comment #22)
> You are probably seeing bug 66067 for trine 2.

 Yes i saw that bug, sound like unsupportabile from Roland's comment :). I also
saw Grigory's hack, but that is different r600_shader does not use llvm
backend... and this is about SI, so thing may be different and don't know how i
can hack si_shader similar? So most probobly that is it for Trine 2, but maybe
that hack will also help in this case, etc...

 https://bugs.freedesktop.org/attachment.cgi?id=86032

 So if someone know how to hack that like for r600 but for SI to approve it is
the same, i will be glad to try that :).

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #24 from smoki <smoki00790@gmail.com> ---
Created attachment 99435
  --> https://bugs.freedesktop.org/attachment.cgi?id=99435&action=edit
Unigine Sanctuary - radeon


 Similar blackiness for today with Unigine Sanctuary.

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #25 from smoki <smoki00790@gmail.com> ---
Created attachment 99436
  --> https://bugs.freedesktop.org/attachment.cgi?id=99436&action=edit
Unigine Sanctuary - fglrx


 In comparation with fglrx, radeon have blackiness with some lighting invilved
:).

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #26 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #25)
>  In comparation with fglrx, radeon have blackiness with some lighting
> invilved :).

Does it look different from radeonsi with any other Mesa driver? E.g. Unigine
might use the GL_ARB_shadow_ambient extension, which is supported by fglrx but
not by Mesa.


Please realize that 'black pixels' is not specific enough to characterize a
single bug. This report is getting unmanageable, please track issues in
separate apps in separate reports and stop mixing in more here.

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

--- Comment #27 from smoki <smoki00790@gmail.com> ---
(In reply to comment #26)
> Does it look different from radeonsi with any other Mesa driver? E.g.
> Unigine might use the GL_ARB_shadow_ambient extension, which is supported by
> fglrx but not by Mesa.

 Swrast is OK, behave much like fglrx :). But radeonsi's shadows looks broken
in various ways, they are darker, missing and missplaced... i will open
separete bug for the issue today.

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[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

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https://bugs.freedesktop.org/show_bug.cgi?id=77785

Michel Dänzer <michel@daenzer.net> changed:

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

--- Comment #28 from Michel Dänzer <michel@daenzer.net> ---
This report has become an intractable mess. One report per app/problem, please.

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