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3 commits

Author SHA1 Message Date
Raph Levien 63ba45c774 Fix performance issues 
Use larger workgroup for tile initialization (utilization was poor).
Provide correct element count to coarse rasterizer.
 2020-06-03 15:32:58 -07:00
Raph Levien ff8cee059c Optimize tile allocation 
Use parallel scheme to zero out tiles.
 2020-06-03 14:46:41 -07:00
Raph Levien 294f6fd1db Experiment with new sorting scheme 
Path segments are unsorted, but other elements are using the same
sort-middle approach as before.

This is a checkpoint. At this point, there are unoptimized versions
of tile init and coarse path raster, but it isn't wired up into a
working pipeline. Also observing about a 3x performance regression in
element processing, which needs to be investigated.
 2020-06-03 09:29:25 -07:00