This accelerates poly point when possible by off-loading all geometry
computation to the GPU.
Improves x11perf -dot performance by 28109.5% +/- 1022.01% (n=3)
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
