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chromium / libyuv / libyuv / 21be9122aadf7824efe3fc19b2a09ff253a688e1
commit21be9122aadf7824efe3fc19b2a09ff253a688e1[log] [tgz]
authorlixia zhang <zhanglixia-hf@loongson.cn>Wed Jul 04 10:40:48 2018
committerCommit Bot <commit-bot@chromium.org>Fri Jul 20 22:53:04 2018
treed22c41b2361d63169a0bfca4805b3b7990e5e420
parent55f5d91f11f929c4c59c32621c3d5457cca3ab0b [diff]
libyuv:loongson optimize compare/row/scale/rotate files with mmi.

Currently, libyuv supports MIPS SIMD Arch(MSA),
but libyuv does not supports MultiMedia Instruction(MMI)(such as loongson3a platform).

In order to improve performance of libyuv on loongson3a platform,
this provides optimize 98 functions with mmi.

BUG=libyuv:804

Change-Id: I8947626009efad769b3103a867363ece25d79629
Reviewed-on: https://chromium-review.googlesource.com/1122064
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
33 files changed
tree: d22c41b2361d63169a0bfca4805b3b7990e5e420
  1. build_overrides/
  2. docs/
  3. include/
  4. infra/
  5. source/
  6. tools_libyuv/
  7. unit_test/
  8. util/
  9. .clang-format
  10. .gitignore
  11. .gn
  12. .vpython
  13. all.gyp
  14. Android.bp
  15. Android.mk
  16. AUTHORS
  17. BUILD.gn
  18. cleanup_links.py
  19. CM_linux_packages.cmake
  20. CMakeLists.txt
  21. codereview.settings
  22. DEPS
  23. download_vs_toolchain.py
  24. gyp_libyuv
  25. gyp_libyuv.py
  26. libyuv.gni
  27. libyuv.gyp
  28. libyuv.gypi
  29. libyuv_nacl.gyp
  30. libyuv_test.gyp
  31. LICENSE
  32. linux.mk
  33. OWNERS
  34. PATENTS
  35. PRESUBMIT.py
  36. public.mk
  37. pylintrc
  38. README.chromium
  39. README.md
  40. 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 on Arm.
  • Optimized for MSA on Mips.

Development

See [Getting started] 1 for instructions on how to get started developing.

You can also browse the [docs directory] 2 for more documentation.