Google Git
Sign in
fuchsia / third_party / libyuv / 42d33341d31687acd1c18e446b8d8fd68ea5cbc1
commit42d33341d31687acd1c18e446b8d8fd68ea5cbc1[log] [tgz]
authorGeorge Steed <george.steed@arm.com>Fri May 03 13:56:29 2024 +0100
committerFrank Barchard <fbarchard@chromium.org>Fri Jul 19 16:01:56 2024 +0000
tree3589e21af00df775f517b6e4a3307fedcb20f6f5
parent4ad050b5ecc04925d2938df722c7b684e88647b7 [diff]
[AArch64] Unroll {RAW,RGB24}To{ARGB,RGBA}Row_SVE2

Unrolling gives a nice improvement to the little cores and even a small
improvement to the big cores thanks to avoiding the loop control
overhead.

Observed performance improvement relative to the existing SVE2 code.

                    | Cortex-A510 | Cortex-A720 | Cortex-X2
  RAWToARGBRow_SVE2 |      -28.4% |      -10.1% |     -3.5%
  RAWToRGBARow_SVE2 |      -28.5% |      -10.1% |     -4.4%
RGB24ToARGBRow_SVE2 |      -28.5% |      -10.4% |     -5.5%

Bug: libyuv:973
Change-Id: I7aa03fdaa1a24ecfdd13418647a02e5effe8333f
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5725174
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
1 file changed
tree: 3589e21af00df775f517b6e4a3307fedcb20f6f5
  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. .vpython
  14. .vpython3
  15. Android.bp
  16. Android.mk
  17. AUTHORS
  18. BUILD.gn
  19. CM_linux_packages.cmake
  20. CMakeLists.txt
  21. codereview.settings
  22. DEPS
  23. DIR_METADATA
  24. download_vs_toolchain.py
  25. libyuv.gni
  26. libyuv.gyp
  27. libyuv.gypi
  28. LICENSE
  29. linux.mk
  30. OWNERS
  31. PATENTS
  32. PRESUBMIT.py
  33. public.mk
  34. pylintrc
  35. README.chromium
  36. README.md
  37. 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.
  • 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.