Re: [Mesa-dev] [PATCH 4/7] i965/blorp: Optimize manual_blend() for compressed multisampled surfaces.

2012-07-19 Thread Anuj Phogat
On Thu, Jul 12, 2012 at 10:43 AM, Paul Berry stereotype...@gmail.com wrote: When downsampling a compressed multisampled surface, we can take a shortcut to downsample any pixels that were completely covered by a single primitive. In this case, the first color value we fetch is the correct

[Mesa-dev] [PATCH 4/7] i965/blorp: Optimize manual_blend() for compressed multisampled surfaces.

2012-07-12 Thread Paul Berry
When downsampling a compressed multisampled surface, we can take a shortcut to downsample any pixels that were completely covered by a single primitive. In this case, the first color value we fetch is the correct final color for the downsampled pixel, so we can skip the rest of the blending