[Mesa-dev] i965 fast depth clears

[Chad Versace]

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On 05/22/2012 10:21 AM, Eric Anholt wrote:
> I finally got around to fixing my fast depth clear hack, and it turns
> out it's a good payoff.  Here's the summary:
> 
>     Improves citybench high-res performance 3.0% +- 0.4%, n=10.
>     Improves Lightsmark 1024x768 performance 0.74% +/- 0.20% (n=78).
>     No significant difference on openarena (n=5, didn't fast clear) or
>     nexuiz (n=3).
> 
> Check out the comment in brw_clear.c at the end for an interesting
> explanation of how fast clears are implemented in hardware.  It sure
> would have saved me time if they had explained that in the spec
> instead of the restrictions that that leads to.

After discussing this at lunch, the series is
Reviewed-by: Chad Versace <chad.versace at linux.intel.com>
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