mesa3d-dev

[Mesa3d-dev] [Bug 27018] New: swrast not working correctly - samples/stencil

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27018

           Summary: swrast not working correctly - samples/stencil
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Other
        AssignedTo: mes...@li...
        ReportedBy: ra...@ma...


Using mesa's swrast i have incorrect rendering in progs/samples/stencil, see
picture

I have mesa master up to commit a0ae2ca033ec2024da1e01d1c11c0437837c031b (
st/dri: move extension initilization to st/mesa completely )


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[Mesa3d-dev] [Bug 27018] swrast not working correctly - samples/stencil

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27018





--- Comment #1 from Andrew Randrianasulu <ra...@ma...>  2010-03-11 06:45:33 PST ---
Created an attachment (id=33957)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33957)
correct rendering from rv280


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[Mesa3d-dev] [Bug 27018] swrast not working correctly - samples/stencil

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27018





--- Comment #2 from Andrew Randrianasulu <ra...@ma...>  2010-03-11 06:46:30 PST ---
Created an attachment (id=33958)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33958)
wrong rendering from swrast


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[Mesa3d-dev] [Bug 27018] swrast not working correctly - samples/stencil

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27018





--- Comment #3 from Andrew Randrianasulu <ra...@ma...>  2010-03-11 06:47:45 PST ---
Created an attachment (id=33959)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33959)
same glxinfo -l as in bug #27017


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[Mesa3d-dev] [Bug 27018] swrast not working correctly - samples/stencil

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27018





--- Comment #4 from Andrew Randrianasulu <ra...@ma...>  2010-03-11 06:51:20 PST ---
Note - rendering directly to fb/vram is  currently way too slow on rv280/KMS

I can see for minute as demo draws itself. Composite manager speed it up .... 


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[Mesa3d-dev] [Bug 27018] swrast not working correctly - samples/stencil

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27018





--- Comment #5 from Brian Paul <bri...@gm...>  2010-03-11 07:13:51 PST ---
This demo (and the others you've filed bugs against) work fine here with swrast
built with 'make linux'.  With this configuration, glxinfo reports:

OpenGL vendor string: Brian Paul
OpenGL renderer string: Mesa X11
OpenGL version string: 2.1 Mesa 7.9-devel


It looks like the issue/bugs are in the libGL GLX code or something about the
swrast_dri.so module.  I see the same thing here using a DRI build from a
couple months ago.  I tried updating my DRI stuff just now but ran into a bunch
of broken dependency issues.  I don't have right time to investigate any
further.

If you need a reference sw driver, I suggest 'make linux'.


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[Mesa3d-dev] [Bug 27018] swrast not working correctly - samples/stencil

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27018





--- Comment #6 from Brian Paul <bri...@gm...>  2010-03-11 07:22:39 PST ---
Looks like the issue is related to single buffer rendering.

Some of the tests take a -db flag to turn on double buffering.  point-wide
looks OK with that flag.

Hopefully someone else can look into this.


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[Mesa3d-dev] [Bug 27018] swrast not working correctly - samples/stencil

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27018


Andrew Randrianasulu <ra...@ma...> changed:

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




--- Comment #7 from Andrew Randrianasulu <ra...@ma...>  2010-03-27 02:05:23 PST ---
(In reply to comment #6)
> Looks like the issue is related to single buffer rendering.
> 
> Some of the tests take a -db flag to turn on double buffering.  point-wide
> looks OK with that flag.
> 
> Hopefully someone else can look into this.
> 

I think  this one is fixed, probably by 

commit 7996f0fc2c167c84552701be7a48d20a897e7978
    dri/swrast: Fix frontbuffer rendering.

-------

currently tested on x86, with mesa git master up to 
commit c8844c5549dec7e9c47ab49d6e229980f62da74d
    r300g: Make SWTCL clear work again.


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