We update the test suite reference images where needed, (pdiff
avoided a few, but most still needed updating). We take advantage
of the need for new reference images to shrink some of the giant
tests to speed them up a bit.
This optimization provides a 2x improvement in linear gradient
generation performance (numbers from an x86 laptop):
image-rgb paint_linear_rgba_source-512 26.13 -> 11.13: 2.35x speedup
█▍
image-rgb paint_linear_rgba_source-256 6.47 -> 2.76: 2.34x speedup
█▍
image-rgba paint_linear_rgb_over-256 6.51 -> 2.86: 2.28x speedup
█▎
image-rgb paint_linear_rgba_over-512 28.62 -> 13.70: 2.09x speedup
█▏
image-rgba fill_linear_rgb_over-256 3.24 -> 1.94: 1.66x speedup
▋
image-rgb stroke_linear_rgba_over-256 5.68 -> 4.10: 1.39x speedup
▍
This patch was produced by running git-stripspace on all *.[ch] files
within cairo. Note that this script would have also created all the changes
from the previous commits to remove trailing whitespace.
This patch was produced with the following (GNU) sed script:
sed -i -r -e 's/[ \t]+$//'
run on all *.[ch] files within cairo.
Note that the above script would have also created all the changes
from the previous commits to remove trailing whitespace.
Some major performance improvements to the general composite code used for gradients and transformed images. Like fetching of mask scanline before source scanline so that only the necessary pixels from source needs to be computed in case of gradients or transformed images as source. This patch also include some gradient specific fixes and performance improvement.
Remove iccompose.c, replaced by fbcompose.c.
Add a slightly-trimmed version of fbpict.h from xserver/fb to make the port smaller and cleaner.
Use the redundant fbpict.h defines and add in the struct for indexed colour support.
Remove defines now in fbpict.h.
Add some constants and types required by fbcompose.c
Add fbcompose.c and fbpict.h, remove iccompose.c.
reviewed by: cworth and Jeff Muizelaar at various stages
