Instead of calling this function in compute_image_info(), just do the
relevant checks when the extended format is computed.
Move computation of solidness to validate
When a trapezoid sample point is exactly on a polygon edge, the rule
is that it is considered inside the trapezoid if the edge is a top or
left edge, but outside for bottom and right edges.
This program tests that for a1 trapezoids.
Rather than the region code having its own little debug system, move
all of it into pixman-private where there is already return_if_fail()
macros etc. These macros are now enabled in development snapshots and
nowhere else. Previously they were never enabled unless you modified
the code.
At the same time, remove all the asserts from the region code since we
can never turn them on anyway, and replace them with
critical_if_fail() macros that will print spew to standard error when
DEBUG is defined.
Finally, also change the debugging spew in pixman-bits-image.c to use
return_val_if_fail() instead of its own fprintf().
Although we added MMX emulation for Microsoft Visual C++ compiler for x64,
USE_SSE2 still requires USE_MMX. So we remove dependency of USE_MMX
for Windows x64.
Signed-off-by: Makoto Kato <m_kato@ga2.so-net.ne.jp>
In the common case where there is no repeating, the loop in
walk_region_internal() reduces to just walking of the boxes involved
and calling the composite function.
_pixman_run_fast_path() and pixman_compute_composite_region() are both
moved to pixman-image, since at this point that's the only place they
are being called from.
In the common case no images need the workaround, so we check for that
first, and only if an image does need a workaround do we check which
one of the images actually need it.
They are no longer necessary because we will just walk the fast path
tables, and the general composite path is treated as another fast
path.
This unfortunately means that sse2_composite() can no longer be
responsible for realigning the stack to 16 bytes, so we have to move
that to pixman_image_composite().
We introduce a new PIXMAN_OP_any fake operator and a PIXMAN_any fake
format that match anything. Then general_composite_rect() can be used
as another fast path.
Because general_composite_rect() does not require the sources to cover
the clip region, we add a new flag FAST_PATH_COVERS_CLIP which is part
of the set of standard flags for fast paths.
Because this flag cannot be computed until after the clip region is
available, we have to call pixman_compute_composite_region32() before
checking for fast paths. This will resolve itself when we get to the
point where _pixman_run_fast_path() is only called once per composite
operation.
- Make it work for PIXMAN_OP_OVER
- Split repeat computation for x and y, and only the x part in the
inner loop.
- Move stride multiplication outside of inner loop
There is not much real benefit in having asserts turned on in
snapshots because it doesn't lead to any new bug reports, just to
people not installing development snapshots since they case X server
crashes. So just turn them off.
While we are at it, limit the number of messages to stderr to 5
instead of 50.
Old code assumed that all ARMv7 processors support NEON instructions
unless overrided by environment variable ARM_TRUST_HWCAP. This causes
X server to die with SIGILL if NEON support is disabled in the kernel
configuration. Additionally, ARMv7 processors lacking NEON unit are
going to become available eventually.
The problem was reported by user bearsh at irc.freenode.net #gentoo-embedded
