[cairo] [PATCH] gl/spans: Handle SOURCE operations with opaque sources.

[Chris Wilson]

On Wed, Feb 06, 2013 at 01:18:24PM -0800, Martin Robinson wrote:
> commit 74006ed8b8cd847a4df4f9c4468960cc24bfd6c2
> Author: Ravi Nanjundappa <ravi.nanjundappa at gmail.com>
> Date:   Mon Feb 6 10:56:55 2012 +0530
> 
>     gl/spans: Handle SOURCE operations with opaque sources.
> 
>     SOURCE operations with an opaque are equivalent to OVER.
>     This can prevent us from falling back in certain cases.

That's a valid optimisation.

Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre