Re: [Mesa-dev] [PATCH 2/2] i965 gen6: Implement rasterizer discard.

2011-12-19 Thread Paul Berry
On 16 December 2011 19:53, Kenneth Graunke wrote: > On 12/14/2011 11:59 AM, Paul Berry wrote: > > This patch enables rasterizer discard functionality (a part of > > transform feedback) in Gen6, by generating an alternate GS program > > when rasterizer discard is active. Instead of forwarding ver

Re: [Mesa-dev] [PATCH 2/2] i965 gen6: Implement rasterizer discard.

2011-12-16 Thread Kenneth Graunke
On 12/14/2011 11:59 AM, Paul Berry wrote: > This patch enables rasterizer discard functionality (a part of > transform feedback) in Gen6, by generating an alternate GS program > when rasterizer discard is active. Instead of forwarding vertices > down the pipeline, the alternate GS program uses a U

[Mesa-dev] [PATCH 2/2] i965 gen6: Implement rasterizer discard.

2011-12-14 Thread Paul Berry
This patch enables rasterizer discard functionality (a part of transform feedback) in Gen6, by generating an alternate GS program when rasterizer discard is active. Instead of forwarding vertices down the pipeline, the alternate GS program uses a URB Write message to deallocate the URB entry that