(And include a git add missed from commit
ccd48b3464
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue Sep 30 14:06:21 2014 +0100
test: Remove more duplicated reference images
but were mostly invalidated by the rasteriser changes anyway).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The goal is to preserve the precision in the gradients of the edges and
only apply the projection into the final cell location. We also include
the half-subrow offset as spotted by Massimo.
References: https://bugs.freedesktop.org/show_bug.cgi?id=84396
Testcase: coverage-rhombus
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reducing the number of passes has the usual change in the antialiasing
side-effects, as well as the boon of being faster (and theorectically more
accurate through reduced loss of dynamic range.)
On an i5-2520m:
swfdec-giant-steps-full 3240.43 -> 2651.36: 1.22x speedup
grads-heat-map 166.84 -> 136.79: 1.22x speedup
swfdec-giant-steps 940.19 -> 796.24: 1.18x speedup
ocitysmap 953.51 -> 831.96: 1.15x speedup
webkit-canvas-alpha 13924.01 -> 13115.70: 1.06x speedup
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
We suffer from the large overhead in calling pixman_image_composite32
per-span, but even will that overhead it is a net win with the usual
caveat about cache efficiency and function call overhead.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
With over two thousand references images now, it is starting to make the
test directory look cluttered!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
