this speeds up downscaling of images by somewhere between 1.8 to 3x
dpeending on case and cpu etc. - this is ONLY for downscaling of an
image buffer betweeb 50% width and/or height up to 100% of width and
height. it's a special case optimization that cuts down the complexity
of the full super sampling filter to just do a bilinear interpolation
which is actually strictly correct for this size range and shouldn't
drop quality. it uses fixed point (16.16) to do the sup pixel sampling.
no mmx/asse or neon, but we could actually easily use it as we do use
mmx/ee and neon in the bilinear upscaler to do interpolation so this
would work here too. it just requires time and effort to make yet 2x
more special cases and use the ASM to do the hard slog here.
@optimize
Work done by Jaeun Choi, rebased & squashed by jpeg.
This commit introduces changes to the low-level draw functions
of the SW engine considering the existence of an alpha mask image.
Features:
- Font masking (TEXT, TEXTBLOCK),
- Rectangle masking,
- Image masking (all image scaling functions should be handled).
The mask image itself is not yet set in the draw context (see
following commits).
@feature
Signed-off-by: Jean-Philippe Andre <jp.andre@samsung.com>
I've tested make -j 3 install and it works nicely
I've tested expedite with software and opengl xlib,
and it works. Not tested other engines, so please
report any problems (engines or other) on the ML.
TODO: examples and tests, I'll add them later
ISSUE: Eina_Unicode size check. It indirectly depends on
eina_config.h, which is created at the end of the
configure script. So its size is always 0. I don't
know how that size is used, so I can't do a lot,
for now.
SVN revision: 78895
Elyes HAOUAS
Carsten Haitzler
Jaeun Choi
Leandro Pereira
Vincent Torri