Also port relevant AVX2/XOP optimizations from x264 with permission
to relicense to LGPL from the corresponding authors

Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

We need the emulation to support the cases where the first
argument is the same as the fourth. To achieve this a fifth
argument working as a temporary may be needed.
Emulation that doesn't obey the original instruction semantics
can't be in x86inc.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This is so we can sync to x264's version of FMA4 support.

This partialy reverts commit 79687079a9.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This allows defining externally visible library symbols.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

The new name is more descriptive and will allow defining a separate
public prefix for externally visible library symbols.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Include x86-optimized versions for SSE2 and AVX.

This reduces the local difference to the x264 upstream version.

"mmxext" is a more sensible name and more common in outside projects.

Unlike YASM, NASM only looks for include files in the current
directory, not in the directory that included files reside in.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Unlike YASM, NASM only looks for include files in the current
directory, not in the directory that included files reside in.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

This is necessary to allow refactoring some x86util macros with cpuflags.

Simplifies pshufb masks that operate on words.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

The current SSE version is slower than the MMX version on Athlon64 and Sandy
Bridge, but the SSE4 and AVX versions are faster on Sandy Bridge.

This is a new library for audio sample format, channel layout, and sample rate
conversion.

This allows combining multiple conditionals in a single statement.

This allows sharing them between multiple .asm files.

This allows using it in swscale also.

Mainly ported from 8-bit H.264 predict.

Some code ported from x264. LGPL ok by author.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

125->104 cycles on penryn (x86_64 only)

Arguments for variable size instructions are added to many macros, along
with other various changes. The x86util.asm code was ported from x264.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Includes AVX versions from x264.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit dda3f0ef48)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

which will hopefully solve the Win64/FATE failures caused by these functions.

Originally committed as revision 25137 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24208 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24029 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23886 to svn://svn.ffmpeg.org/ffmpeg/trunk

Strip out most x264-specific stuff (not used anywhere in ffmpeg).

Originally committed as revision 23877 to svn://svn.ffmpeg.org/ffmpeg/trunk

Modify the asm accordingly.
GLOBAL is now no longoer necessary for PIC-compliant loads.

Originally committed as revision 23739 to svn://svn.ffmpeg.org/ffmpeg/trunk