Reduce allocations of row buffers to 1 alloc/free.
Do 2 rows at a time to avoid converting U and V planes twice.

Bug: libyuv:715
Test: LibYUVConvertTest.H010ToAR30_Opt
Change-Id: I2f3a03b4875df5e3b969112a78a1a0b28399fa2f
Reviewed-on: https://chromium-review.googlesource.com/816021Reviewed-by: Cheng Wang <wangcheng@google.com>

Bug: libyuv:751
Test:  LibYUVConvertTest.H010ToARGB_Opt
Change-Id: I668d3f3810e59a4fb6611503aae1c8edc7d596e7
Reviewed-on: https://chromium-review.googlesource.com/815015
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: richard winterton <rrwinterton@gmail.com>

Add a comment in util/Makefile for how to enable
OpenMP for MacOS.  Requires updated gcc or clang compile.

Bug: None
Test: /usr/local/bin/g++-7 -msse2 -O3 -fopenmp -static-libgcc -o psnr_omp psnr.cc ssim.cc psnr_main.cc
Change-Id: Icb3389bf8cf94f09a185fea055c69823b9fbc66b
time ./psnr_omp  -ssim -s 1920 1080 ~/test/garden2_mp4.yuv ~/test/garden2_ogv.yuv
Reviewed-on: https://chromium-review.googlesource.com/807546Reviewed-by: Weiyong Yao <braveyao@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>

Bug: libyuv:762
Test: NV21ToABGR unittest
Change-Id: I71448ab83930339083f07eeafccf240c6cb41c48
Reviewed-on: https://chromium-review.googlesource.com/795212
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Cheng Wang <wangcheng@google.com>

H010ToAR30 uses Convert16To8Row_SSSE3 to convert 10 bit YUV to 8 bit.
Then standard YUV conversion can be used.  This improves performance
on low end CPUs.
Future CL will by pass this conversion allowing for 10 bit YUV source,
but the function will be useful as a utility for YUV conversions.

Bug: libyuv:559, libyuv:751
Test: out/Release/libyuv_unittest --gtest_filter=*H010ToAR30* --libyuv_width=1280 --libyuv_height=720 --libyuv_repeat=999 --libyuv_flags=-1 --libyuv_cpu_info=-1
Change-Id: I9b3ef22d88a5fd861de4cf1900b4c6e8fd24d0af
Reviewed-on: https://chromium-review.googlesource.com/792334
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>

This allows the linker to move the variables from the .data section to
the .rodata section.

Bug: libyuv:254
Test: out/Release/libyuv_unittest --gtest_filter=* --libyuv_width=1280 --libyuv_height=720 --libyuv_repeat=999 --libyuv_flags=-1 --libyuv_cpu_info=-1

Change-Id: I6998570f1af4337d7b80313d9e18e36aa20d6ec0
Reviewed-on: https://chromium-review.googlesource.com/777033
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>

This version of the H010ToAR30 provides a 3 step conversion
Convert16To8Row_AVX2
H420ToARGB_AVX2
ARGBToAR30_AVX2

Low level function added to convert 16 bit to 8 bit using multiply
to adjust 10 bit or other bit depths and then save the upper 16 bits.

Bug: libyuv:751
Test: LibYUVPlanarTest.Convert16To8Row_Opt unittest added
Change-Id: I9cc576fda8afa1003cb961d03e0e656e0b478f03
Reviewed-on: https://chromium-review.googlesource.com/783554
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: richard winterton <rrwinterton@gmail.com>

Bug: libyuv:751
Test: LibYUVConvertTest.ARGBToAR30_Opt
Change-Id: I09c13eb53ba5f1ce1740c013dc587f8300f1d9e0
Reviewed-on: https://chromium-review.googlesource.com/780437
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: richard winterton <rrwinterton@gmail.com>

Bug: libyuv:749
Test: LibYUVBaseTest.TestFourCC
Change-Id: Iec378947248840c7e2cd87b1198503f39e7c7258
Reviewed-on: https://chromium-review.googlesource.com/780619Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>

Bug: libyuv:749
Test: none
Change-Id: Icdfb0ff7bb5886d73498f4d88ca4629b2dc3425c
Reviewed-on: https://chromium-review.googlesource.com/780443Reviewed-by: Weiyong Yao <braveyao@chromium.org>

Bug: libyuv:751
Test: none
Change-Id: If6d5e7b9c5e6e8d2a272e03ce5a1cc199ef364ca
Reviewed-on: https://chromium-review.googlesource.com/779980Reviewed-by: Weiyong Yao <braveyao@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@google.com>

Bug: libyuv:760
Test: LibYUVConvertTest.H420ToRAW_Opt
Change-Id: I050385f477309d5db02bb2218088f224c83392ed
Reviewed-on: https://chromium-review.googlesource.com/775785
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Weiyong Yao <braveyao@chromium.org>

Tests ScalePlane vs ScalePlane_16 match.

Bug: libyuv:749
Test: LibYUVScaleTest.ScalePlaneDownBy4_Box_16
Change-Id: I3f71748da404982d5d48bfb11bbd3ae95a1d021c
Reviewed-on: https://chromium-review.googlesource.com/765045Reviewed-by: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Reviewed-by: Weiyong Yao <braveyao@chromium.org>

The unittest compares the results of 8 and 16 bit scaling
and expects them to be the same.  This CL makes the 16 bit
scaling filter logic match.

Bug: libyuv:749
Test: LibYUVScaleTest.DISABLED_ScaleDownBy4_Linear_16
Change-Id: Ifb3ca4d770ef38f9f16abe9b9aeb843b779bf371
Reviewed-on: https://chromium-review.googlesource.com/772370Reviewed-by: Weiyong Yao <braveyao@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@google.com>

clang-format does nested indents for macros that dont end with ;
example:
  align_buffer_page_end(dst_y_8, dst_y_plane_size)
      align_buffer_page_end(dst_u_8, dst_uv_plane_size)
          align_buffer_page_end(dst_v_8, dst_uv_plane_size)
              align_buffer_page_end(dst_y_16, dst_y_plane_size * 2)
                  align_buffer_page_end(dst_u_16, dst_uv_plane_size * 2)
                      align_buffer_page_end(dst_v_16, dst_uv_plane_size * 2)

use a similar allocator to the one used within libyuv in row.h which makes the caller add ;
  align_buffer_page_end(dst_y_8, dst_y_plane_size);
  align_buffer_page_end(dst_u_8, dst_uv_plane_size);
  align_buffer_page_end(dst_v_8, dst_uv_plane_size);
  align_buffer_page_end(dst_y_16, dst_y_plane_size * 2);
  align_buffer_page_end(dst_u_16, dst_uv_plane_size * 2);
  align_buffer_page_end(dst_v_16, dst_uv_plane_size * 2);

Bug: libyuv:758
Test: try bots
Change-Id: I4a0770707e7053e094a37bbfc3c5884d5663d078
Reviewed-on: https://chromium-review.googlesource.com/762757Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

When converting from lsb 10 bit formats to msb, the values
need to be shifted to the top 10 bits.  Using a multiply
allows the different numbers of bits to be copied:
// 128 = 9 bits
// 64 = 10 bits
// 16 = 12 bits
// 1 = 16 bits
Bug: libyuv:751
Test: LibYUVPlanarTest.MultiplyRow_16_Opt
Change-Id: I9cf226053a164baa14155215cb175065b1c4f169
Reviewed-on: https://chromium-review.googlesource.com/762951Reviewed-by: richard winterton <rrwinterton@gmail.com>
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

Instead of hardcoded shift, use a multiply by a parameter.
128 = 9 bits
64 = 10 bits
16 = 12 bits
1 = 16 bits

Bug: libyuv:751
Test: LibYUVPlanarTest.MergeUV10Row_Opt
Change-Id: Id925edfdbf91243370c90641b50eb8e7625ec329
Reviewed-on: https://chromium-review.googlesource.com/762523Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

Bug: libyuv:756
Test: CFLAGS="-m32 -static -std=gnu89 -mno-sse -O2" CXXFLAGS="-m32 -x c -static -std=gnu99 -mno-sse -O2" make -f linux.mk libyuv.a
Change-Id: Ic362f93e01ccbb0bea14f361a58585e79297e7d2
Reviewed-on: https://chromium-review.googlesource.com/759423Reviewed-by: Frank Barchard <fbarchard@google.com>
Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@google.com>

clang does not require -msse2 or -msse for inline, except
the "x" parameter.  So change this to "m" for 32 bit.  64 bit
requires sse2 so use "x" for 64 bit.

gcc requires -msse for xmm registers in clobber list.
Reduce compiler requirement from -msse2 to -msse for enabling
assembly.

Bug: libyuv:754, libyuv:757
Test: CC=clang CXX=clang++ CFLAGS="-m32" CXXFLAGS="-m32 -mno-sse -O2" make -f linux.mk
Change-Id: I86df72cfee80b7d349561c1fd7c97ad360767255
Reviewed-on: https://chromium-review.googlesource.com/759303Reviewed-by: richard winterton <rrwinterton@gmail.com>
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

cleanup to remove ifdefs around functions affected by
a clang bug.

gn gen out/Release "--args=is_debug=false target_os=\"android\" target_cpu=\"mips64el\" mips_arch_variant=\"r6\" mips_use_msa=true is_component_build=true is_clang=true"
ninja -v -C out/Release libyuv_unittest

Bug: libyuv:634
Test: build for mips with clang
Change-Id: I278b368dbb2fe89082240e280267d0a27a214c78
Reviewed-on: https://chromium-review.googlesource.com/757980Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

This reverts commit 01e994d7.

Change-Id: Ie76710d0f4e641e071889c5125fd3be23cdcdb59
Reviewed-on: https://chromium-review.googlesource.com/758499Reviewed-by: Frank Barchard <fbarchard@google.com>

Bug: libyuv:754
Test: CC=clang CXX=clang++ CFLAGS="-m32" CXXFLAGS="-m32 -mno-sse -O2" make -f linux.mk
Change-Id: I74bf8d032013694e65ea7637bc38d3253db53ff2
Reviewed-on: https://chromium-review.googlesource.com/758043Reviewed-by: Frank Barchard <fbarchard@google.com>

Bug: libyuv:755
Test: ~/intelsde/sde -p4p -- out/Release/libyuv_unittest --gtest_filter=LibYUVScaleTest*
Change-Id: Ibb0c908c38efc49dc56e86fa54ae7bd48ced02b5
Reviewed-on: https://chromium-review.googlesource.com/756363Reviewed-by: Cheng Wang <wangcheng@google.com>

Key instruction sets added for each microarchitecture:

AVX512BW, AVX512VL, AVX512DQ - skylake server or later
AVX512_VBMI, AVX512_IFMA - cannon lake or later
AVX512_BITALG, AVX512_VBMI2, AVX512_VPOPCNTDQ, AVX512_VNNI, GFNI, VAES, VPCLMULQDQ - ice lake or later

Bug: libyuv:752
Test: ~/intelsde/sde -icl -- out/Release/libyuv_unittest --gtest_filter=*Cpu*
Change-Id: I9ee28904c90009d66721b9f805a440c5fc2da122
Reviewed-on: https://chromium-review.googlesource.com/755617Reviewed-by: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>

vmovd is an AVX instruction.  This will crash on an older CPU with
only SSSE3 but not AVX.  Use movd instead.

Bug: libyuv:753
Test: ~/intelsde/sde -mrm -- out/Release/libyuv_unittest --gtest_filter=LibYUVCompareTest.BenchmarkHammingDistance_Opt
Change-Id: I1fb0026039d5f83d124f5d03fed7dc0d2d723e49
Reviewed-on: https://chromium-review.googlesource.com/756200Reviewed-by: Cheng Wang <wangcheng@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>

H010 is 10 bit planar format with 10 bits in lower bits.
P010 is 10 bit biplanar format with 10 bits in upper bits.
This function weaves the U and V channels and shifts the bits
into the upper bits.

Bug: libyuv:751
Test: LibYUVPlanarTest.MergeUV10Row_Opt
Change-Id: I4a0bac0ef1ff95aa1b8d68261ec8e8e86f2d1fbf
Reviewed-on: https://chromium-review.googlesource.com/752692Reviewed-by: Cheng Wang <wangcheng@google.com>
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

Bug: None
Test: None
Change-Id: Ie7cab948b7e879b08e5e5efaae008977513a0a80
Reviewed-on: https://chromium-review.googlesource.com/749895
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Patrik Höglund <phoglund@chromium.org>

Bug: libyuv:750
Test: build with WITH_TIDY=1
Change-Id: I09b7c24f52d0daa72fe7d1928d11a56208526bd1
Reviewed-on: https://chromium-review.googlesource.com/748307Reviewed-by: Patrik Höglund <phoglund@chromium.org>

Bug: libyuv:701
Test: objdump to confirm code gen
Change-Id: Ibdcb2cc6bc9bf14b4ccb874c49fc9ff664650e1a
Reviewed-on: https://chromium-review.googlesource.com/745390Reviewed-by: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>

Bug: None
Test: lint passes
Change-Id: I1fd40d3506bab1f4f9100902f633a9c9e7b96337
Reviewed-on: https://chromium-review.googlesource.com/745038Reviewed-by: Frank Barchard <fbarchard@google.com>

popcnt has a fake dependency on the destination.
This assembly avoids the dependency by using a different
register for each popcnt.

Bug: libyuv:701
Test: LIBYUV_DISABLE_SSSE3=1 out/Release/libyuv_unittest --gtest_filter=*Ham*Opt --libyuv_width=1280 --libyuv_height=720 --libyuv_repeat=9999 --libyuv_flags=-1 --libyuv_cpu_info=-1
Change-Id: Ie1d202e2613b7fa8a3c02acd433940e92c80eafa
Reviewed-on: https://chromium-review.googlesource.com/731826Reviewed-by: Cheng Wang <wangcheng@google.com>
Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

Bug: libyuv:746
Test: mm cpuid yuvconvert compare psnr libyuv_unittest
Change-Id: I08f6d5b519151f274e6baee993eb74950161ef53
Reviewed-on: https://chromium-review.googlesource.com/726749Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

Bug: libyuv:747
Test: mm cpuid under android builds
Change-Id: I7fff13006b47a59873f29f8992bb3faf9bdb85f1
Reviewed-on: https://chromium-review.googlesource.com/727263
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Frank Barchard <fbarchard@google.com>

Bug: libyuv:746
Test: mm from android repo
Change-Id: I7c124acfacc87cc263b19483cea79a63084f3f96
Reviewed-on: https://chromium-review.googlesource.com/724237Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

mingw gcc sets the macro _M_IX86 which is normally only set
by Visual C and clangcl which are Visual C style source code
style for assembly, but gcc is not Visual C compatible.
Add _MSC_VER to most ifdefs to detect that its really Visual C
or clangcl and not mingw gcc so the gcc source code will be used.

Bug: libyuv:744
Test: CXXFLAGS=-m32 CXX=~/prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/bin/x86_64-w64-mingw32-g++ make -f linux.mk
Change-Id: I3431aa486eb769b145faa8d5eb75ed639f9d6f5e
Reviewed-on: https://chromium-review.googlesource.com/722319Reviewed-by: Cheng Wang <wangcheng@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

Rietveld CQ has already been disabled and is no longer supoorted.

TBR=phoglund@chromium.org

No-Try: True
Bug: chromium:770592
Change-Id: I2679e9193dfb5ec751bdc76d35fe5d835b44bd0a
Reviewed-on: https://chromium-review.googlesource.com/714302Reviewed-by: Henrik Kjellander <kjellander@chromium.org>
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>

The low level hamming distance functions have size limitations
based on counter sizes.  The higher level calls the low level
in blocks that avoid overflow and then accumulators in int64.
This test compares the results of the low levels to the high
level and against a known value (all ones) to ensure the
count is correct for any specified size.
The the size is very large, the result is expected to be
different.

Bug: libyuv:701
Test: TestHammingDistance_Opt
Change-Id: I6716af7cd09ac4d88a8afa25bc845a1b62af7c93
Reviewed-on: https://chromium-review.googlesource.com/710800Reviewed-by: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

Bug: libyuv:701
Test: HammingDistance unittest with large size
Change-Id: Id41a2c27eb8922d03b3a21dab32fa2e7b015ba38
Reviewed-on: https://chromium-review.googlesource.com/708335Reviewed-by: Cheng Wang <wangcheng@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

This reverts commit ec75df58.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> ComputeHammingDistance reduce SIMD loop to 1 call when possible.
> 
> 32 bit x86 has high overhead due to -fpic.  So this reduces the
> number of calls by 1.
> 
> TBR=kjellander@chromium.org
> Bug: libyuv:701
> Test: BenchmarkHammingDistance
> Change-Id: I7f557ef047920db65eab362a5f93abbd274ca051
> Reviewed-on: https://chromium-review.googlesource.com/701755
> Reviewed-by: Frank Barchard <fbarchard@google.com>
> Reviewed-by: Cheng Wang <wangcheng@google.com>

TBR=rrwinterton@gmail.com,fbarchard@google.com,wangcheng@google.com

Change-Id: Ia61e8558a8f083c14be5f51e0e141550b6f2b5c1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: libyuv:701
Reviewed-on: https://chromium-review.googlesource.com/707823Reviewed-by: Frank Barchard <fbarchard@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>

32 bit x86 has high overhead due to -fpic.  So this reduces the
number of calls by 1.

TBR=kjellander@chromium.org
Bug: libyuv:701
Test: BenchmarkHammingDistance
Change-Id: I7f557ef047920db65eab362a5f93abbd274ca051
Reviewed-on: https://chromium-review.googlesource.com/701755Reviewed-by: Frank Barchard <fbarchard@google.com>
Reviewed-by: Cheng Wang <wangcheng@google.com>