These ref images might be wrong. Since the test failed here already before this
change, I took the old ref images and copied the new part from the test output
underneath it. For the backends that I don't have, I deleted the images (sorry).
After this, the "operator-source" test still fails for me on all backends, but
much more prominently so for the image backend. xcb-render-0.0/argb32 gets
compared against a rgb24 ref image, but apparently this was already the case
before(?). The rest are minor differences.
This reveals a bug in the image backend. This was originally reported here:
http://lists.cairographics.org/archives/cairo/2011-March/021827.html
Signed-off-by: Uli Schlachter <psychon@znc.in>
This speeds up the mask generation step in cairo_fill() for the image
surface by up to 10x in especially favourable cases.
image-rgba twin-800 7757.80 0.20% -> 749.41 0.29%: 10.36x speedup
image-rgba spiral-diag-pixalign-nonzero-fill-512 15.16 0.44% -> 3.45 8.80%: 5.54x speedup
More typical simple non-rectilinear geometries are sped up by 30-50%.
This patch does not affect any stroking operations or any fill
operations of pixel aligned rectilinear geometries; those are still
rendered using trapezoids.
