Bug 32949

Created attachment 41819 [details]
without the bug

Created attachment 41820 [details]
Need for Speed Most Wanted with the bug

Created attachment 41821 [details]
Need for Speed Most Wanted normal

Created attachment 41822 [details]
terminal output 1

output of Need for Speed Underground game with the bug:

commands applied to bash to get the output

export WINEDEBUG=-all
export INTEL_DEBUG=vs,wm
padsp wine Speed.exe 2>&1> err.txt

Created attachment 41823 [details]
terminal output 2

output of Need for Speed Underground game with the bug:

commands applied to bash to get the output

export WINEDEBUG=-all
export MESA_GLSL=dump
padsp wine Speed.exe 2>&1> err1.txt

Decreasing severity to normal as this isn't a crash or a regression.

Is there any chance you could try reproducing this with the software rasterizer?  It will probably take forever for wine and the game to start up, but that will help narrow down where the bug is.  It would also help to know if the bug is reproducible in Mesa 7.9.1.

I have tested Mesa 7.9.1 before testing Mesa 7.10.

the bug is not present in Mesa 7.9 and 7.9.1

Excuse me, but how to run in software
rasterizer mode. I do not know

Flatout 1 & 2 also suffer from this bug

This bug is affecting a huge range of games, including Source Based games like Counter:strike, HL2, and also others like Civilization IV, Settlers 2 10th years edition.

I'm using Wine 1.3.12 and also Wine from Git with Mesa from Git. Ubuntu 10.10

(In reply to comment #6)
> Decreasing severity to normal as this isn't a crash or a regression.
> 
> Is there any chance you could try reproducing this with the software
> rasterizer?  It will probably take forever for wine and the game to start up,
> but that will help narrow down where the bug is.  It would also help to know if
> the bug is reproducible in Mesa 7.9.1.

Changed severity to high as this a regression

(In reply to comment #6)
> Decreasing severity to normal as this isn't a crash or a regression.
> 
> Is there any chance you could try reproducing this with the software
> rasterizer?  It will probably take forever for wine and the game to start up,
> but that will help narrow down where the bug is.  It would also help to know if
> the bug is reproducible in Mesa 7.9.1.

The bug is not on Civilization IV using software rasterizer.

(In reply to comment #8)
> Excuse me, but how to run in software
> rasterizer mode. I do not know

set LIBGL_ALWAYS_SOFTWARE=1 before your command

still present in the git Mesa 7.11-devel

also present in just released Mesa 7.10.1

Created attachment 44176 [details]
NFS Underground terminal dump

ran NFS Underground on Wine and got Mesa GLSL dump with and without Software Rasterizer by invoking these commands in the terminal.

For Normal Mesa Renderer (Hardware):
export WINEDEBUG=-all
export MESA_GLSL=dump
padsp wine Speed.exe 2>&1> outwithoutbug.txt

For Mesa Software Rasterizer Renderer:
export LIBGL_ALWAYS_SOFTWARE=1
export WINEDEBUG=-all
export MESA_GLSL=dump
padsp wine Speed.exe 2>&1> outwithbug.txt

please use attached tar file to get these files.

(In reply to comment #16)
> Created an attachment (id=44176) [details]
> NFS Underground terminal dump
> 
> ran NFS Underground on Wine and got Mesa GLSL dump with and without Software
> Rasterizer by invoking these commands in the terminal.
> 
> For Normal Mesa Renderer (Hardware):
> export WINEDEBUG=-all
> export MESA_GLSL=dump
> padsp wine Speed.exe 2>&1> outwithoutbug.txt
> 
> For Mesa Software Rasterizer Renderer:
> export LIBGL_ALWAYS_SOFTWARE=1
> export WINEDEBUG=-all
> export MESA_GLSL=dump
> padsp wine Speed.exe 2>&1> outwithbug.txt
> 
> please use attached tar file to get these files.

In Mesa Software Rasterizer Renderer mode the problem is not visible

Here's a demo of Civilization IV that's been affected by this bug.

http://download.cnet.com/Civilization-IV-demo/3000-7489_4-10465206.html

this bug maybe related to this WINE bug:
http://bugs.winehq.org/show_bug.cgi?id=17715

have no clue but from google search http://bugs.winehq.org/show_bug.cgi?id=7284

Looking into this.

I believe this may have been fixed by the following commit (in Mesa master):

commit 0c8beb0ab5e72a9d2ecaad51db16a7d5291e120b
Author: Kenneth Graunke <kenneth@whitecape.org>
Date:   Sat Mar 26 22:04:23 2011 -0700

    i965/fs: Fix linear gl_Color interpolation on pre-gen6 hardware.
    
    Civilization 4's shaders make heavy use of gl_Color and don't use
    perspective interpolation.  This resulted in rivers, units, trees, and
    so on being rendered almost entirely white.  This is a regression
    compared to the old fragment shader backend.
    
    Found by inspection (comparing the old and new FS backend code).
    
    References: https://bugs.freedesktop.org/show_bug.cgi?id=32949
    
    NOTE: This is a candidate for the 7.10 branch.

Could you please test it?  Thanks.

Great!, I can not believe in my eyes, developers are so smart that it took only few days to trigger this bug out of the field.
Now, Mesa 7.10.1 is as good as 7.8.3-rc1 bug wise, plus extra functionality.

When this patch is going to merge to 7.10.1, so that next Ubuntu 11.04 can use it.

Thanks

fixed by commit 0c8beb0ab5e72a9d2ecaad51db16a7d5291e120b

The wine bugs mentioned in comment 19 and 20 are totally unrelated btw.

let's keep this bug open until the patch cherry-picked to 7.10 branch.

I just cherry-picked the fix to the 7.10 branch.  Marking fixed.