When using C version of I420Interpolate for msan, a 50% interpolation
would cause stride to be cast to int, which could cause erroneous
memory reads on 64 bit build.
This CL makes the stride use ptrdiff_t for HalfRow_C

BUG=libyuv:582
TESTED=try bots tests
R=dhrosa@google.com

Review URL: https://codereview.chromium.org/1872953002 .

Affected Linux GN build, not Windows.

R=kjellander@chromium.org
BUG=libyuv:583
TESTED=gn gen out/Debug --args=is_debug=true

Review URL: https://codereview.chromium.org/1866743002 .

BUG=libyuv:579
TESTED=mkdir build && cd build && cmake .. && cmake --build . --config Release
R=kjellander@chromium.org

Review URL: https://codereview.chromium.org/1847233002 .

GYP_DEFINES="target_arch=x64 msan=1" ./gyp_libyuv
ninja -j7 -C out/Release

R=impjdi@google.com
BUG=libyuv:575

Review URL: https://codereview.chromium.org/1805683003 .

The 64 bit version of ARGBToRGB565 to 32 bit. 64 bit is using sri which shifts and inserts, saving some masking.  The instruction is available for neon 32 bit as well.

R=magjed@chromium.org, harryjin@google.com
BUG=libyuv:571

Review URL: https://codereview.chromium.org/1724393002 .

Name of objdump tool updated.

TBR=kjellander@chromium.org
BUG=none

Review URL: https://codereview.chromium.org/1715743003 .

Review URL: https://codereview.chromium.org/1727993002 .

document play services update

R=jkellander@chromium.org
BUG=none

Review URL: https://codereview.chromium.org/1712463002 .

An SSSE3 version already exists, and an AVX2 version is available for
Visual C.  This ports the function to AVX2 completing the AVX2 ports of
all YUV to RGB functions for AVX2 on gcc.

TBR=harryjin@google.com
BUG=libyuv:555

Review URL: https://codereview.chromium.org/1687253002 .

R=harryjin@google.com
BUG=libyuv:557

Review URL: https://codereview.chromium.org/1687713002 .

R=harryjin@google.com
BUG=libyuv:564

Review URL: https://codereview.chromium.org/1685723002 .

TBR=harryjin@google.com
BUG=libyuv:566

Review URL: https://codereview.chromium.org/1673313003 .

When attempting to normalize function names to end in Row_SIMD it was made
harder with MIPS_DSPR2 naming convention.
Other CPUs do not include the vendor.  This should be named consistently.

Removed the DISABLE_MIPS in favour of DISABLE_ASM for consistency with other
processors.

TBR=harryjin@google.com
BUG=libyuv:562

Review URL: https://codereview.chromium.org/1677633002 .

internal math of the fastrand function uses a multiply
and add that overflows a signed int.  This triggers a
ubsan failure:

../../unit_test/../unit_test/unit_test.h:60:33: runtime error: signed integer overflow: 56248274 * 214013 cannot be represented in type 'int'

This change casts the intermediate math to unsigned
int to avoid the overflow.

For more info on ubsan, see
http://dev.chromium.org/developers/testing/undefinedbehaviorsanitizer

TESTED=Passing compilation using:
GYP_DEFINES="ubsan=1"
GYP_DEFINES="ubsan_vptr=1"

R=harryjin@google.com, pbos@webrtc.org
BUG=libyuv:563

Review URL: https://codereview.chromium.org/1662453003 .

This is an UBSan error reported by libjingle

[ RUN      ] WebRtcVideoFrameTest.ConvertToYUY2BufferStride
[000:000] (videoframe.cc:375): Validate frame passed. format: I420 bpp: 12 size: 1280x720 bytes: 1382400 expected: 1382400 sample[0..3]: 73, 73, 73, 73
../../chromium/src/third_party/libyuv/source/row_gcc.cc:2903:25: runtime error: signed integer overflow: 128 * 16843009 cannot be represented in type 'int'
[8/614] WebRtcVideoFrameTest.ConvertToYUY2BufferStride returned/aborted with exit code 1 (32 ms)
[9/614] WebRtcVideoFrameTest.ConvertToYUY2BufferInverted (29 ms)
Note: Google Test filter = WebRtcVideoFrameTest.ConvertToYUY2BufferInverted

The source is uint8 and the multiply is by 0x01010101 to replicate the byte to 4 bytes.
Changing the constant to 0x01010101u should avoid overflow.

R=harryjin@google.com
TBR=harryjin@google.com
BUG=libyuv:563

Review URL: https://codereview.chromium.org/1657533005 .

R=harryjin@google.com
TBR=harryjin@google.com, kjellander@google.com
BUG=libyuv:551

Review URL: https://codereview.chromium.org/1612123002 .

When the image height for unittests was set to an
odd height, the TestI420 unittest would not fill
the complete source buffer.  This change handles
the odd height test case.
No change to library code.

TBR=harryjin@google.com
BUG=libyuv:549

Review URL: https://codereview.chromium.org/1609103002 .

When width was odd Y channel wrote an extra pixel.
This change splits the Y from UV into a temporary
buffer and memcpy's to the destination.  Performance
is slower.

Was
YUY2ToNV12_Any (307 ms)
YUY2ToNV12_Unaligned (213 ms)
TestYUY2ToNV12 (181 ms)
YUY2ToNV12_Opt (177 ms)
YUY2ToNV12_Invert (177 ms)

Npw
YUY2ToNV12_Any (300 ms)
YUY2ToNV12_Unaligned (226 ms)
YUY2ToNV12_Invert (206 ms)
TestYUY2ToNV12 (184 ms)
YUY2ToNV12_Opt (181 ms)
TBR=harryjin@google.com
BUG=libyuv:545

Review URL: https://codereview.chromium.org/1593833002 .

I420ToNV21 passes the wrong dst_stride_y when it calls I420ToNV12; parameter 8 (convert_from.cc:448) is src_stride_y but should be dst_stride_y.  This causes image corruption when converting I420 -> NV21 with mismatched luminance strides.

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:547

Review URL: https://codereview.chromium.org/1582793008 .

R=harryjin@google.com
BUG=libyuv:546

Review URL: https://codereview.chromium.org/1574253004 .

TBR=harryjin@google.com
BUG=libyuv:543

Review URL: https://codereview.chromium.org/1577723003 .

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:538

Review URL: https://codereview.chromium.org/1558093003 .

R=dhrosa@google.com
BUG=libyuv:539

Review URL: https://codereview.chromium.org/1557923005 .

port scaledownby4_avx2 to gcc

TBR=harryjin@google.com
BUG=libyuv:492

Review URL: https://codereview.chromium.org/1546763002 .

TBR=harryjin@google.com
BUG=libyuv:537

Review URL: https://codereview.chromium.org/1547703002 .

TBR=harryjin@google.com
BUG=libyuv:535

Review URL: https://codereview.chromium.org/1543773002 .

BUG=libyuv:535
R=dhrosa@google.com

Review URL: https://codereview.chromium.org/1535833003 .

BUG=libyuv:533

TBR=harryjin@google.com

Review URL: https://codereview.chromium.org/1531143002 .

Fixing the failure:
 'TransposeWx8_Fast_MIPS_DSPR2' was not declared in this scope

BUG=none
R=fbarchard@chromium.org

Review URL: https://codereview.chromium.org/1527243002 .

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:527

Review URL: https://codereview.chromium.org/1520423003 .

When scaling down by 2 the formula should round consistently.
(a+b+c+d+2)/4
The C version did but the SSE2 version was doing 2 averages.
avg(avg(a,b),avg(c,d))
This change uses a sum, then rounds.

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:447,libyuv:527

Review URL: https://codereview.chromium.org/1513183004 .

remove include from unittest.cc that is already done by unittest.h

TBR=harryjin@google.com
BUG=libyuv:530

Review URL: https://codereview.chromium.org/1513263004 .

Some functions run out of registers when compiled for debug,
fpic, with stack frames on 32 bit x86 with clang.
Previously they were enabled based on _DEBUG but that macro
is not set in some build systems.  This CL adds DEBUG macro as
well to cover those environments.

R=harryjin@google.com
BUG=libyuv:532

Review URL: https://codereview.chromium.org/1517693005 .

Benchmark
out\release\libyuv_unittest --libyuv_width=1279 --libyuv_height=719 --libyuv_repeat=999 --libyuv_flags=-1 --gtest_filter=*Blend* | sortms

Was
I420Blend_Any (2321 ms)
I420Blend_Unaligned (1684 ms)
I420Blend_Opt (1675 ms)
I420Blend_Invert (1653 ms)
BlendPlane_Invert (1556 ms)
BlendPlane_Any (1552 ms)
BlendPlane_Unaligned (1548 ms)
BlendPlane_Opt (1535 ms)
ARGBBlend_Unaligned (659 ms)
ARGBBlend_Any (596 ms)
ARGBBlend_Invert (591 ms)
ARGBBlend_Opt (508 ms)
BlendPlaneRow_Unaligned (186 ms)
BlendPlaneRow_Opt (171 ms)

Now
ARGBBlend_Any (621 ms)
ARGBBlend_Unaligned (585 ms)
ARGBBlend_Invert (564 ms)
ARGBBlend_Opt (512 ms)
I420Blend_Unaligned (347 ms)
I420Blend_Invert (345 ms)
I420Blend_Any (337 ms)
I420Blend_Opt (327 ms)
BlendPlane_Unaligned (187 ms)
BlendPlaneRow_Unaligned (187 ms)
BlendPlane_Invert (186 ms)
BlendPlane_Any (186 ms)
BlendPlaneRow_Opt (173 ms)
BlendPlane_Opt (171 ms)

which is comparable to aligned case
out\release\libyuv_unittest --libyuv_width=1280 --libyuv_height=720 --libyuv_repeat=999 --libyuv_flags=-1 --gtest_filter=*Blend* | sortms
ARGBBlend_Any (625 ms)
ARGBBlend_Unaligned (602 ms)
ARGBBlend_Invert (508 ms)
ARGBBlend_Opt (506 ms)
I420Blend_Any (353 ms)
I420Blend_Unaligned (322 ms)
I420Blend_Invert (304 ms)
I420Blend_Opt (301 ms)
BlendPlaneRow_Unaligned (188 ms)
BlendPlane_Unaligned (186 ms)
BlendPlane_Invert (185 ms)
BlendPlane_Any (184 ms)
BlendPlaneRow_Opt (173 ms)
BlendPlane_Opt (169 ms)

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:527

Review URL: https://codereview.chromium.org/1513443002 .

xgetbv is generating bad code, falsely disabling AVX2 and AVX512.
disable optimization for the function affected on older versions of Visual C 32 bit.

R=brucedawson@chromium.org, dhrosa@google.com, harryjin@google.com
BUG=libyuv:529

Review URL: https://codereview.chromium.org/1503393004 .

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:527

Review URL: https://codereview.chromium.org/1507683003 .

AVX2 version can process 16 pixels at a time for improved memory bandwidth and fewer instructions.

unittests improved to test unaligned memory, and test exactness when alpha is 0 or 255.

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:527

Review URL: https://codereview.chromium.org/1505433002 .

R=dhrosa@google.com, harryjin@google.com, jzern@chromium.org
BUG=libyuv:527

Review URL: https://codereview.chromium.org/1491533002 .

YUV version of interpolation between two images.

R=dhrosa@google.com, harryjin@google.com
BUG=libyuv:526

Review URL: https://codereview.chromium.org/1479593002 .

TBR=harryjin@google.com
BUG=libyuv:524

Review URL: https://codereview.chromium.org/1468523002 .

TBR=harryjin@google.com
BUG=libyuv:524

Review URL: https://codereview.chromium.org/1461013002 .