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android / platform / external / libyuv / 10de943a12737be193e4f51df9e37b555ea09710
commit10de943a12737be193e4f51df9e37b555ea09710[log] [tgz]
authorDarren Hsieh <darren.hsieh@sifive.com>Fri Jun 09 05:51:48 2023 -0700
committerlibyuv LUCI CQ <libyuv-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Jul 26 18:05:50 2023 +0000
treef31b2b0c07e99a30356fc8b10102123ef45f279e
parenta04fbafc5d50d585ee9526a2bed633a38ae69328 [diff]
[RVV] Enable ScaleRowUp2_(Bi)linear_RVV/ScaleUVRowUp2_(Bi)linear_RVV

ScaleUVRowUp2_(Bi)linear_RVV function is equal to other platforms' ScaleRowUp2_(Bi)linear_Any_XXX.
We process entire row in this function.
Other platforms only implement non-edge part of image and process edge with scalar.
ScaleRowUp2_(Bi)linear_Any_XXX: Combine ScaleRowUp2_(Bi)linear_XXX(non-edge) + ScaleRowUp2_(Bi)linear_C(edge) by SBUH2LANY/SU2BLANY.

* Run on SiFive internal FPGA:

Test case                       RVV function			Speedup
I444ScaleFrom640x360_Bilinear	ScaleRowUp2_Bilinear_RVV	8.21
I444ScaleFrom640x360_Linear	ScaleRowUp2_Linear_RVV	        8.08
UVScaleFrom640x360_Bilinear	ScaleUVRowUp2_Bilinear_RVV	7.80
UVScaleFrom640x360_Linear	ScaleUVRowUp2_Linear_RVV	7.03

Change-Id: I539245ce51858f077506a78f0e7e82377ac6a95d
Signed-off-by: Darren Hsieh <darren.hsieh@sifive.com>
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4666062
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
5 files changed
tree: f31b2b0c07e99a30356fc8b10102123ef45f279e
  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. cleanup_links.py
  20. CM_linux_packages.cmake
  21. CMakeLists.txt
  22. codereview.settings
  23. DEPS
  24. DIR_METADATA
  25. download_vs_toolchain.py
  26. libyuv.gni
  27. libyuv.gyp
  28. libyuv.gypi
  29. LICENSE
  30. linux.mk
  31. OWNERS
  32. PATENTS
  33. PRESUBMIT.py
  34. public.mk
  35. pylintrc
  36. README.chromium
  37. README.md
  38. 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.