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fuchsia / third_party / libyuv / fa16ddbb9fbee36d67d8496fc9389ea95930b238
commitfa16ddbb9fbee36d67d8496fc9389ea95930b238[log] [tgz]
authorFrank Barchard <fbarchard@google.com>Tue Jul 02 10:39:04 2024 -0700
committerFrank Barchard <fbarchard@google.com>Tue Jul 02 18:10:56 2024 +0000
tree6124fb32d4222bc4d75bb4e4019ba6774643138d
parent616bee5420b62a7be09fda0252034e8be85f91b0 [diff]
cpuid show vector length on ARM and RISCV

- additional asm volatile changes from github
- rotate mips remove C function - moved to common

Run on Samsung S22
[ RUN      ] LibYUVBaseTest.TestCpuHas
Kernel Version 5.10
Has Arm 0x2
Has Neon 0x4
Has Neon DotProd 0x10
Has Neon I8MM 0x20
Has SVE 0x40
Has SVE2 0x80
Has SME 0x0
SVE vector length: 16 bytes
[       OK ] LibYUVBaseTest.TestCpuHas (0 ms)
[ RUN      ] LibYUVBaseTest.TestCompilerMacros
__ATOMIC_RELAXED 0
__cplusplus 201703
__clang_major__ 17
__clang_minor__ 0
__GNUC__ 4
__GNUC_MINOR__ 2
__aarch64__ 1
__clang__ 1
__llvm__ 1
__pic__ 2
INT_TYPES_DEFINED
__has_feature

Run on RISCV qemu emulating SiFive X280:
[ RUN      ] LibYUVBaseTest.TestCpuHas
Kernel Version 6.6
Has RISCV 0x10000000
Has RVV 0x20000000
RVV vector length: 64 bytes
[       OK ] LibYUVBaseTest.TestCpuHas (4 ms)
[ RUN      ] LibYUVBaseTest.TestCompilerMacros
__ATOMIC_RELAXED 0
__cplusplus 202002
__clang_major__ 9999
__clang_minor__ 0
__GNUC__ 4
__GNUC_MINOR__ 2
__riscv 1
__riscv_vector 1
__riscv_v_intrinsic 12000
__riscv_zve64x 1000000
__clang__ 1
__llvm__ 1
__pic__ 2
INT_TYPES_DEFINED
__has_feature

Bug: b/42280943
Change-Id: I53cf0450be4965a28942e113e4c77295ace70999
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5672088
Reviewed-by: David Gao <davidgao@google.com>
7 files changed
tree: 6124fb32d4222bc4d75bb4e4019ba6774643138d
  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.