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android / platform / external / libyuv / b5a18f9d
commitb5a18f9d937492c0e2d3dc88d6a2ed39c6cfda24[log] [tgz]
authorDarren Hsieh <darren.hsieh@sifive.com>Fri Sep 15 02:20:41 2023 -0700
committerFrank Barchard <fbarchard@chromium.org>Sun Dec 29 17:32:00 2024 -0800
tree918591d1763f8688109441f928aa1637907f44b0
parentcce895081624f3f660db8eba4839d604ed1e6059 [diff]
[RVV] Optimize ScaleARGBFilterCols with RVV

* Run on SiFive internal FPGA:

Test Case	                Speedup
ARGBScaleDownBy3by8_Linear      x2.05
ARGBScaleDownBy3by8_Bilinear    x1.76
ARGBScaleDownBy3by8_Box         x1.76

Bug: 42280924
Co-Developed-by: Bruce Lai <bruce.lai@sifive.com>
Change-Id: Ib9979b1f2ca92d2ef5aa373f9b2459c246ded6c8
Signed-off-by: Darren Hsieh <darren.hsieh@sifive.com>
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5103572
Reviewed-by: Wan-Teh Chang <wtc@google.com>
Reviewed-by: Bruce Lai <bruce.lai@sifive.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
3 files changed
tree: 918591d1763f8688109441f928aa1637907f44b0
  1. build_overrides/
  2. docs/
  3. include/
  4. infra/
  5. riscv_script/
  6. source/
  7. tools_libyuv/
  8. unit_test/
  9. util/
  10. .clang-format
  11. .gitignore
  12. .gn
  13. .vpython3
  14. Android.bp
  15. Android.mk
  16. AUTHORS
  17. BUILD.gn
  18. CM_linux_packages.cmake
  19. CMakeLists.txt
  20. codereview.settings
  21. DEPS
  22. DIR_METADATA
  23. download_vs_toolchain.py
  24. libyuv.gni
  25. libyuv.gyp
  26. libyuv.gypi
  27. LICENSE
  28. linux.mk
  29. OWNERS
  30. PATENTS
  31. PRESUBMIT.py
  32. public.mk
  33. pylintrc
  34. README.chromium
  35. README.md
  36. winarm.mk
README.md

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.