Re: [Mesa-dev] [PATCH] i965/Gen7: Fix HiZ ops for MSAA depth

2014-06-15 Thread Chris Forbes
Ping. This has been broken for ages, and at least tesseract is carrying hacks to work around it (extra color buffer containing depth values, in their g-buffer). Getting rid of that wins us about 15%. -- Chris On Sat, Feb 8, 2014 at 3:54 PM, Chris Forbes wrote: > Previously, we would program the

[Mesa-dev] [PATCH] i965/Gen7: Fix HiZ ops for MSAA depth

2014-02-07 Thread Chris Forbes
Previously, we would program the sample count based on the blorp operation's dst sample count -- which is zero for a HiZ op; we'd also ignore the difference between physical and logical surface size for the depth surface. That kindof worked -- the two errors almost cancel out -- but produced stran