I420Alpha row function in 1 pass

I420Alpha row function in 1 pass.
API change - I420AlphaToARGB takes flag indicating if RGB should be
premultiplied by alpha.

This version implements an efficient SSSE3 version for Windows.
C version done in 2 steps.

Was
libyuvTest.I420AlphaToARGB_Any (1136 ms)
libyuvTest.I420AlphaToARGB_Unaligned (1210 ms)
libyuvTest.I420AlphaToARGB_Invert (966 ms)
libyuvTest.I420AlphaToARGB_Opt (1031 ms)
libyuvTest.I420AlphaToABGR_Any (1020 ms)
libyuvTest.I420AlphaToABGR_Unaligned (1359 ms)
libyuvTest.I420AlphaToABGR_Invert (1082 ms)
libyuvTest.I420AlphaToABGR_Opt (986 ms)


R=harryjin@google.com
BUG=libyuv:496
Committed: https://chromium.googlesource.com/libyuv/libyuv/+/e365cdde3b18f8c109c9d6319dbfb5c493c242e6

[fbarchard, 2015-09-25 01:56:02]

fbarchard@chromium.org changed reviewers:
+ fbarchard@chromium.org

[fbarchard, 2015-09-25 01:56:02]

SSSE3 version of I420AlphaToARGB for Windows.

Was
I420AlphaToARGB_Opt (959 ms)

Now
I420AlphaToARGB_Opt (800 ms)

[harryjin, 2015-09-25 01:59:13]

https://codereview.chromium.org/1367093002/diff/1/source/convert_argb.cc
File source/convert_argb.cc (right):

https://codereview.chromium.org/1367093002/diff/1/source/convert_argb.cc#newc...
source/convert_argb.cc:362: //    I422AlphaToARGBRow =
I422AlphaToARGBRow_Any_SSSE3;
Remove?

[fbarchard, 2015-09-25 02:54:58]

Was
libyuvTest.I420AlphaToARGB_Any (1136 ms)
libyuvTest.I420AlphaToARGB_Unaligned (1210 ms)
libyuvTest.I420AlphaToARGB_Invert (966 ms)
libyuvTest.I420AlphaToARGB_Opt (1031 ms)
libyuvTest.I420AlphaToABGR_Any (1020 ms)
libyuvTest.I420AlphaToABGR_Unaligned (1359 ms)
libyuvTest.I420AlphaToABGR_Invert (1082 ms)
libyuvTest.I420AlphaToABGR_Opt (986 ms)


Now
I420AlphaToARGB_Any (611 ms)
I420AlphaToARGB_Unaligned (475 ms)
I420AlphaToARGB_Invert (452 ms)
I420AlphaToARGB_Opt (452 ms)
I420AlphaToARGB_Premult (800 ms)
I420AlphaToABGR_Any (468 ms)
I420AlphaToABGR_Unaligned (468 ms)
I420AlphaToABGR_Invert (453 ms)
I420AlphaToABGR_Opt (440 ms)
I420AlphaToABGR_Premult (798 ms)

https://codereview.chromium.org/1367093002/diff/1/source/convert_argb.cc
File source/convert_argb.cc (right):

https://codereview.chromium.org/1367093002/diff/1/source/convert_argb.cc#newc...
source/convert_argb.cc:362: //    I422AlphaToARGBRow =
I422AlphaToARGBRow_Any_SSSE3;
On 2015/09/25 01:59:13, harryjin wrote:
> Remove?

Done.

[harryjin, 2015-09-25 16:46:23]

lgtm

[fbarchard1, 2015-09-25 17:29:26]

Committed patchset #3 (id:40001) manually as
e365cdde3b18f8c109c9d6319dbfb5c493c242e6 (presubmit successful).