Note that this also effectively accelerates src_n_8888, src_n_0565 and
src_n_8 composite types, ...

Move the entire contents of pixman-arm-simd-asm.S to a new file;
ultimately this will only retai...

For large upscalings the level of subsampling for the filter has a
quite visible effect, so make...

Old functions pixman_transform_point() and pixman_transform_point_3d()
now become just wrappers ...

This test uses __float128 data type when it is available
for implementing a "perfect" reference ...

GCC supports 128-bit floating point data type on some platforms (including
but not limited to x8...

The following new functions are added:

pixman_transform_point_31_16_3d() -
Calculates the p...

Processing two pixels at once is used to reduce the number of
arithmetic operations.

The speedu...

Unrolling loops improves performance, so just use it here.

Also GCC can't properly optimize thi...

Adding specialized iterators for r5g6b5 color format allows us to work
on fine tuning performanc...

Signed-off-by: Chris Wilson <[email protected]>

We should always have at least a C combiner available, so we never
expect the search to fail. If...

This path is being exercised by inplace compositing of trapezoids, for
instance as used in the f...

Based on the existing sse2_8888_n_8888 nearest scaling routines.

fishbowl on an i5-2500: 60.9s ...

This path is being exercised by compositing of trapezoids for clipmasks, for
instance as used in...

We never expect to fail to find the appropriate function as the
general_composite_rect should al...

Having 4 or fewer bits means we can do two components at
a time in a single 32 bit register.

He...

This adds two extra tests, src_n_8 and src_8_8, which I have been
using to benchmark my ARMv6 ch...

With the operator_name() and format_name() functions there is no
longer any reason for composite...

This function returns the name of the given format code, which is
useful for printing out debug ...

This function returns the name of the given operator, which is useful
for printing out debug inf...

Ben Avison pointed out here:

http://lists.freedesktop.org/archives/pixman/2013-January/00248...

INCLUDES has been deprecated starting with automake 1.13. Convert all
occurrences with the recom...

- over_reverse_n_8888
- in_n_8_8

Performance numbers before/after on MIPS-74kc @ 1GHz:

lowlev...

- out_reverse_8_0565
- out_reverse_8_8888

Performance numbers before/after on MIPS-74kc @ 1GHz...

v2: Don't return a pointer to uninitialized memory when the allocation
of horz and vert fails, b...

The noop src iterator already has code to handle solid images, but
that code never actually runs...

Automake-1.13 has removed long obsolete AM_CONFIG_HEADER macro (
http://lists.gnu.org/archive/ht...

C++ compilers do not define SIZE_MAX. It is also not available
if the code is compiled by some C...

pixman-float-combiner.c currently uses checks like these:

if (x == 0.0f)
...
el...

ARMv6 has UQADD8 instruction, which implements unsigned saturated
addition for 8-bit values pack...

This change reduces 3 shifts, 3 ANDs and 2 ORs (total 8 arithmetic
operations) to 3 shifts, 2 AN...

It is easier and safer to modify their code in the case if the
calculations need some temporary ...

A check is needed that the creation of the temporary image in
pixman_composite_trapezoids() succ...

stress-test -s 0x17ee crashes because pixman_composite_trapezoids() is
given a mask_format of PI...

The entry points add_trapezoids(), rasterize_trapezoid() and
composite_trapezoid() are exercised...

Instead of having its own copy.

This is useful in demo programs to display the alpha channel.

Radial gradients are conceptually rendered as a sequence of circles
generated by linearly extrap...

Add two new gradient columns, one where the start circle is has radius
0 and one where the end c...

Just use SSE2 intrinsics to do unaligned memory accesses as
a workaround for this gcc bug relate...

The generic C over_u combiner can be a lot faster with the
addition of special shortcuts for 0xF...

Similar to the fast paths for general affine access, add some fast
paths for the separable filte...

This new API is a helper function to create filter parameters suitable
for use with PIXMAN_FILTE...

This filter is a new way to use a convolution matrix for filtering. In
contrast to the existing ...

Add some notes on how to compute the convolution matrices to be used
with the SEPARABLE_CONVOLUT...

The zone plate image is a useful test case for image scalers because
it contains all representab...

This new test is derived from radial-test.c and displays conical
gradients at various angles.

I...

This program allows interactively scaling and rotating images with
using various filters and rep...

This function uses GdkPixbuf to load various common formats such as
.png and .jpg into a pixman ...

After finding a working TLS storage class specifier, configure was
continuing to test other cand...

They are the same as 'prng_rand_n' and 'prng_rand'

Wallclock time for running pixman "make check" (compile time not included):

-------------------...

The 'lcg' prefix is going to be misleading if we replace
PRNG algorithm.

This adds a fast SIMD-optimized variant of a small noncryptographic
PRNG originally developed by...

Also dropped redundant volatile keyword because any object
can be accessed via char* pointer wit...

It is not entirely obvious how pixman gets from "location in the
source image" to "pixel value s...

The pixel computed by the convolution filter should be rounded off,
not truncated. As a simple e...

After two fixed-point numbers are multiplied, the result is shifted
into place, but up until now...

Signed-off-by: Stefan Weil <[email protected]>

These modifications fix lots of compiler warnings for systems where
sizeof(unsigned long) != siz...

MinGW-w64 uses the GNU compiler and does not define _MSC_VER.
Nevertheless, it provides xmmintri...

Performance numbers before/after on MIPS-74kc @ 1GHz:

lowlevel-blt-bench results

Referent (bef...

Performance numbers before/after on MIPS-74kc @ 1GHz:

lowlevel-blt-bench -n

Referent (before):...

Performance numbers before/after on MIPS-74kc @ 1GHz:

lowlevel-blt-bench results

Referent (bef...

It is useful to be able to invert a matrix in place, but currently
pixman_f_transform_invert() w...

Fixes bug 56889.

When the mask is known to be opaque, we might as well reduce it to
NULL to take advantage of the...

Performance numbers before/after on MIPS-74kc @ 1GHz:

lowlevel-blt-bench results

Referent (bef...

Performance numbers before/after on MIPS-74kc @ 1GHz:

lowlevel-blt-bench results

Referent (bef...

Performance numbers before/after on MIPS-74kc @ 1GHz:

lowlevel-blt-bench results

Referent (bef...

GCC 4.6 has problems with force_inline, so just use normal inline instead.
Fixes: https://bugs.f...

pixman_composite_trapezoids() is supposed to composite across the
entire destination, but it act...

The computation of the extents rectangle is moved to its own
function.

When pixman_image_create_bits() function is given NULL for bits, it
will allocate a new buffer a...

(fixes bug #52101)

On MirBSD, the compiler produces a (harmless) warning when the compiler
is c...

This provides a way to enable MIPS DSP ASE optimizations if running
under qemu-user (where /proc...

This is used to compute whether the regions in question overlap, but
nothing makes use of this i...

The while part of a do/while loop was formatted as if it were a while
loop with an empty body. P...

In order for a src/mask pair to be considered a pixbuf, they have to
have identical transformati...

pixman-combine32.[ch] were the only built sources, so BUILT_SOURCES
can now be removed.

GCC doesn't move the divisions out of the loop, so do it manually by
looking up the four (1.0f /...

Since pixman-combine64.[ch] are not used anymore, there is no point
generating these files from ...

This test runs the new floating point combiners on random input with
divide-by-zero exceptions t...

In preparation for an upcoming change of the wide pipe to use floating
point, comment out some f...

This file contains floating point implementations of combiners for all
pixman operators. These c...

In pixman-bits-image.c, remove bits_image_fetch_untransformed_64() and
add bits_image_fetch_untr...

The 64 bit pipeline is not used anymore, so it can now be removed.

Don't generate pixman-combin...

A new struct argb_t containing a floating point pixel is added to
pixman-private.h and conversio...