Mesa (master): util: Set flatshade for blitter.

[Brian Paul]

Corbin Simpson wrote:
> Module: Mesa
> Branch: master
> Commit: 1c75edf3e8ccc97f5f91f42f99c1f8db30b25fc4
> URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=1c75edf3e8ccc97f5f91f42f99c1f8db30b25fc4
> 
> Author: Corbin Simpson <MostAwesomeDude at gmail.com>
> Date:   Mon Jan 11 05:39:56 2010 -0800
> 
> util: Set flatshade for blitter.
> 
> It was bugging me. +1 FPS on softpipe.

I believe that the fragment shader's input color attribute is 
presently flagged as TGSI_INTERPOLATE_PERSPECTIVE.  It should be 
TGSI_INTERPOLATE_CONSTANT when the shader is used for solid fills. 
That should definitely speed things up a bit for softpipe/llvmpipe.

I'm attaching a patch that I was working on last week but didn't test 
much...

-Brian

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