On Thursday, January 29, 2015 04:20:59 PM Topi Pohjolainen wrote: > Currently meta blit programs unconditionally write both color and > depth values. This series introduces two flavours - with and without > gl_FragDepth - allowing simpler programs for color only blits. Ken > had observed that i965 behaves badly emitting five unnecessary moves > when the depth is included in the shader. > While this didn't improve any performance benches I tried, it doesn't > seem to introduce any regressions either in the benches or with > piglit. > > Topi Pohjolainen (5): > meta/blit: Add plumbing for shaders without depth > meta/blit: Write depth only when asked for > meta/blit: Compile programs with and without depth > meta: Don't write depth when generating miptrees > meta: Don't write depth when decompressing tex-images
Series is: Reviewed-by: Kenneth Graunke <kenn...@whitecape.org> This should also help with future Cherryview optimizations. Thanks!
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