This reduces 16x16 2D-DCT runtime from 865 cycles to 837 cycles.

Change-Id: I137758b81cd127b936175284310e81378db64552

This commit makes use of the butterfly structure to enable the sse2
version implementation of 8x8 ADST/DCT hybrid transform coding.

The runtime of hybrid transform module goes down from 1170 cycles
to 245 cycles. Overall speed-up around 1.5%.

Change-Id: Ic808ffd21ece8a9d0410d8c0243d7b6c28ac3b3f

for all regular inter frames at speed 1

Change-Id: I0a8b301273ecf2b8730ab1f6b7a05f89f4d498e0

For cases where there's no transform set in bit 0 (the left edge of
the SB) but bit 0 of mask_4x4_int is set (the edge 4 pixels from the
left edge needs filtering), it was incorrectly being skipped before.
This situation only happens on the leftmost edge of the image, as
the edge at column 0 is intentionally skipped since there aren't
pixels to the left to read.

Change-Id: Ib2fbbcb40166e90af31b1a0e13b85b68c226cbd3

Fixes crashes of test_libvpx on 32-bit Linux.

Change-Id: If94e7628a86b788ca26c004861dee2f162e47ed6

The functions no longer referenced.

Change-Id: If2705dfbc607f79ec8ec2242d5e03bec27a35aaf

This function never referenced.

Change-Id: I1c42cd355bfa88e17d169f7335a44be682af58cc

Using MV instead of int_mv for function arguments.

Change-Id: Ic25e13dccbc98fac1fa1b3255127e00cca2a57f6

Change-Id: I8fcab81e390f93dc17e9666bbf8f77883b5aa897

Change-Id: Id54ad9a781634f075e990d5bade5be8490959975

Fixes a crash on Windows when building with MSVC.

Change-Id: I124ac756a1be55d190fadda5fcc46d23b1445dbf

Change vp9_block_error() to return a 64bit error variable, change all
callers to expect a 64bit return value (this will prevent overflows,
which we basically don't check for at all right now). Remove duplicate
block_error() function, which fixed that through truncation. Remove
old (incompatible) mmx/sse2 block_error SIMD versions and replace with
a new one that returns a 64bit value.

Encoding time of first 50 frames of bus @ 1500kbps goes from 3min29 to
3min23, i.e. a 3% overall speedup.

Change-Id: Ib71ac5508b5ee8a80f1753cd85d72df1629abe68

3% faster overall (3min35.0 to 3min28.5).

Change-Id: I5ff8a5c2c91586b6632ca5009ad1ea51ce94af5e

and remove unused code.

Change-Id: If380440c4450294b5450b7a9eeb94a376846ec01

Change-Id: I7960178c95c54d5c4497e44cfc8c493566294b34

Encoding of bus @ 1500kbps (first 50 frames) goes from 3min57 to
3min35, i.e. approximately a 10.5% speedup. Note that the SIMD versions
which use a bilinear filter (x_offset & 7 || y_offset & 7) aren't
perfectly interleaved, and can probably be improved further in the
future. I've marked this with a few TODOs/FIXMEs in the code.

Change-Id: I5c9e900c0f0d32e431a50fecae213b510b2549f9

Change-Id: Idfd69e66e8982275eb00d8007a55efd1a4f86a98

- size_t vs int.

Change-Id: Ib47ebd932a4b69db9f52a43000bb69d0a96b9134

This reverts commit 90a9900a

Seems to break the Mac build:
src/include/gtest/internal/gtest-port.h:1208:: pthread_mutex_lock(&mutex_)failed with error 22
Abort trap: 6

Change-Id: Icbe31161d7c27f1b0a28d33409e7712430bbf0ae