Re: [Mesa-dev] [PATCH 1/3] intel: Fix span functions for stencil buffer

2011-07-11 Thread Dan McCabe
On 07/11/2011 04:03 PM, Chad Versace wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 07/11/2011 12:49 PM, Dan McCabe wrote: On 07/09/2011 08:56 AM, Chad Versace wrote: Up until this point, we incorrectly believed that the stencil buffer is Y-tiled. In fact, it is W tiled. From PRM Vol

Re: [Mesa-dev] [PATCH 1/3] intel: Fix span functions for stencil buffer

2011-07-11 Thread Chad Versace
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 07/11/2011 12:49 PM, Dan McCabe wrote: > On 07/09/2011 08:56 AM, Chad Versace wrote: >> Up until this point, we incorrectly believed that the stencil buffer is >> Y-tiled. In fact, it is W tiled. From PRM Vol 1 Part 2 Section 4.5.2.1 >> W-Major Tile

Re: [Mesa-dev] [PATCH 1/3] intel: Fix span functions for stencil buffer

2011-07-11 Thread Dan McCabe
On 07/09/2011 08:56 AM, Chad Versace wrote: Up until this point, we incorrectly believed that the stencil buffer is Y-tiled. In fact, it is W tiled. From PRM Vol 1 Part 2 Section 4.5.2.1 W-Major Tile Format: "W-Major Tile Format is used for separate stencil." Since the stencil buffer is all

[Mesa-dev] [PATCH 1/3] intel: Fix span functions for stencil buffer

2011-07-09 Thread Chad Versace
Up until this point, we incorrectly believed that the stencil buffer is Y-tiled. In fact, it is W tiled. From PRM Vol 1 Part 2 Section 4.5.2.1 W-Major Tile Format: "W-Major Tile Format is used for separate stencil." Since the stencil buffer is allocated with I915_TILING_Y, the span functions m