mirror of
https://chromium.googlesource.com/libyuv/libyuv
synced 2026-10-28 18:07:12 +08:00
bad060c3a5
- Port rotate_gcc.cc to intrinsics in rotate_win.cc: TransposeWx8_SSSE3,
TransposeUVWx8_SSE2, TransposeWx16_AVX2, TransposeUVWx16_AVX2,
Transpose4x4_32_SSE2, Transpose4x4_32_AVX2, and for 64 bit,
TransposeWx16_AVX512BW and TransposeUVWx16_AVX512BW.
- Remove the 32 bit Visual C inline assembly.
- Enable rotate_win.cc for Visual C 32/64 bit, LIBYUV_ENABLE_ROWWIN,
which MemorySanitizer also enables, and all 32 bit x86 compilers.
Visual C 64 bit previously used C.
- rotate_gcc.cc is now 64 bit only. 32 bit gcc and clang only had an
8x8 TransposeWx8_SSSE3 and Transpose4x4_32, because the UV and AVX2
inline assembly uses xmm8..xmm15, so 32 bit NV12 rotate used C.
Remove the 32 bit TransposeWx8_SSSE3 inline assembly.
- Add a target("sse2") attribute to the SSE2 intrinsics so gcc and
clang build them when the baseline lacks SSE2, such as
-march=pentium3.
- Disable the generic x86 scale_row.h and compare_row.h HAS_ macros for
32 bit LIBYUV_ENABLE_ROWWIN, as is done for 64 bit. scale_gcc.cc and
compare_gcc.cc are disabled for ROWWIN and scale_win.cc and
compare_win.cc require _MSC_VER, so out/rowwin_x86 failed to link with
undefined symbols such as ScaleARGBCols_SSE2 and HashDjb2_SSE41.
- TransposeWx8_SSSE3 and TransposeUVWx8_SSE2 share a 16x8 helper.
- TransposeWx8_SSSE3 requires a multiple of 16 on all platforms.
- Byte transposes use a shared helper with dst_a / dst_b outputs so
2, 3 and 4 channel variants can reuse the same shuffles.
Functions available:
Function rotate_gcc rotate_win rotate_win
64 bit 64 bit 32 bit
TransposeWx8_SSSE3 asm intrinsics intrinsics
TransposeUVWx8_SSE2 asm intrinsics intrinsics
TransposeWx16_AVX2 asm intrinsics intrinsics
TransposeUVWx16_AVX2 asm intrinsics intrinsics
Transpose4x4_32_SSE2 asm intrinsics intrinsics
Transpose4x4_32_AVX2 asm intrinsics intrinsics
TransposeWx16_AVX512BW asm intrinsics -
TransposeUVWx16_AVX512BW asm intrinsics -
32 bit x86 Linux clang on AMD Milan (Zen 3), ms
(LIBYUV_WIDTH=1280 LIBYUV_HEIGHT=720 LIBYUV_REPEAT=2000):
C Before After SSE2 After AVX2
I420Rotate90_Opt 944 321 322 220
NV12Rotate90_Opt 1412 935 315 232
Testing:
for w in 1 2 3 7 8 9 15 16 17 23 24 31 32 33 64 65 1279 1280; do
for h in 1 7 8 15 16 17 24 31 32 33 719; do
LIBYUV_WIDTH=$w LIBYUV_HEIGHT=$h out/rowwin/libyuv_unittest \
--gtest_filter='*Rotate*:*Transpose*'
done
done
Repeated with LIBYUV_DISABLE_AVX2=1, LIBYUV_DISABLE_AVX512BW=1, with
out/Release and out/Release_x86, under sde64 -skx for AVX512BW, and
with out/msan (is_msan = true) and out/rowwin_x86
(target_cpu = "x86", libyuv_enable_rowwin = true). Built out/android_x86
(target_os = "android", target_cpu = "x86"). Compiled rotate_win.cc
with g++ and clang++ -m32 -march=pentium3.
Bug: None
Change-Id: Ic70c4f0b7eb46b1b8522a1eba851dac5f506ec3e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8499394
Reviewed-by: richard winterton <rrwinterton@gmail.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
|
||
|---|---|---|
| build_overrides | ||
| docs | ||
| include | ||
| infra/config | ||
| riscv_script | ||
| source | ||
| tools_libyuv | ||
| unit_test | ||
| util | ||
| .clang-format | ||
| .gitignore | ||
| .gn | ||
| Android.bp | ||
| Android.mk | ||
| AUTHORS | ||
| BUILD.bazel | ||
| BUILD.gn | ||
| CM_linux_packages.cmake | ||
| CMakeLists.txt | ||
| codereview.settings | ||
| DEPS | ||
| DIR_METADATA | ||
| download_vs_toolchain.py | ||
| GEMINI.md | ||
| libyuv.bzl | ||
| libyuv.gni | ||
| libyuv.gyp | ||
| libyuv.gypi | ||
| LICENSE | ||
| linux.mk | ||
| OWNERS | ||
| PATENTS | ||
| PRESUBMIT.py | ||
| public.mk | ||
| pylintrc | ||
| README.chromium | ||
| README.md | ||
| vpython.toml | ||
| vpython.toml.uv.lock | ||
| winarm.mk | ||
| WORKSPACE.bazel | ||
libyuv is an open source project that includes YUV scaling and conversion functionality.
- Scale YUV to prepare content for compression, with point, bilinear or box filter.
- Convert to YUV from webcam formats for compression.
- Convert to RGB formats for rendering/effects.
- Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
- Optimized for SSSE3/AVX2 on x86/x64.
- Optimized for Neon/SVE2/SME on Arm.
- Optimized for MSA on Mips.
- Optimized for RVV on RISC-V.
Development
See Getting started for instructions on how to get started developing.
You can also browse the docs directory for more documentation.