coffee/libyuv
1
0
Fork 0
mirror of https://chromium.googlesource.com/libyuv/libyuv synced 2025-12-06 16:56:55 +08:00
Code Issues Packages Projects Releases Wiki Activity
libyuv/source
History
George Steed f5882ed1c5 [AArch64] getauxval(AT_HWCAP{,2}) feature detection, attempt #2 
This re-lands commit ba0bba5b2b7e38c9365a5d152b4efa0458863213.

Now with additional #ifdef __linux__ guards to avoid compiling
Linux-specific code on non-Linux platforms. Non-linux feature detection
will be added in a separate patch.

Using getauxval(AT_HWCAP{,2}) has the advantage of also working under
emulation where faking /proc/cpuinfo is not supported.

For the Chromium sandbox, getauxval is supported since API version 18.
The minimum supported API version at time of writing is 21 so we should
be able to use getauxval unconditionally. On the off-chance the call
fails it will return 0 and we will correctly fall-back to using only
Neon.

If we want to read the current CPU implementer or part number we could
do this by checking HWCAP_CPUID and then reading MIDR_EL1. This will
cause a kernel trap to emulate the EL1 read but should still be a lot
faster than reading the whole of /proc/cpuinfo.

Bug: libyuv:980
Change-Id: I8ae103ea7e32ef44db72f3c9896417bfe97ff5c5
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5465590
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-04-25 21:26:31 +00:00
..
compare_common.cc clang-tidy applied 2021-04-01 21:42:47 +00:00
compare_gcc.cc MT2T Warning fixes for fuchsia 2022-12-06 19:54:40 +00:00
compare_msa.cc use unix line endings 2018-06-20 23:19:59 +00:00
compare_neon64.cc [AArch64] Add Neon dot-product implementation of SumSquareError 2024-04-25 20:54:48 +00:00
compare_neon.cc Scale by even factor low level row function 2020-11-03 21:25:18 +00:00
compare_win.cc Switch win32 to row_gcc for clangcl. 2021-04-22 19:32:32 +00:00
compare.cc [AArch64] Add Neon dot-product implementation of SumSquareError 2024-04-25 20:54:48 +00:00
convert_argb.cc [AArch64] Add SVE2 implementation for I444ToARGBRow 2024-04-09 03:11:01 +00:00
convert_from_argb.cc [AArch64] Use Neon dot-product instructions in ARGBToYMatrixRow 2024-04-09 03:09:36 +00:00
convert_from.cc Change ScalePlane,ScalePlane_16,... to return int 2023-11-03 23:53:24 +00:00
convert_jpeg.cc PlaneScale, UVScale and ARGBScale test 3x and 4x down sample. 2020-10-28 20:41:59 +00:00
convert_to_argb.cc Remove M420 and refactor NV12ToI420 2020-05-26 18:48:00 +00:00
convert_to_i420.cc Fix ConvertToI420 when using YUY2 or UYVY with odd crop_x. 2021-07-19 22:22:22 +00:00
convert.cc [AArch64] Use Neon dot-product instructions in ARGBToYMatrixRow 2024-04-09 03:09:36 +00:00
cpu_id.cc [AArch64] getauxval(AT_HWCAP{,2}) feature detection, attempt #2 2024-04-25 21:26:31 +00:00
mjpeg_decoder.cc Add AMXINT8 cpu detect 2024-02-15 21:44:47 +00:00
mjpeg_validate.cc Update to r1732 for more robust jpeg 2019-07-01 22:32:36 +00:00
planar_functions.cc malloc return 1 for failures and assert for internal functions 2023-12-04 22:55:20 +00:00
rotate_any.cc Remove MMI support 2022-01-26 08:41:33 +00:00
rotate_argb.cc malloc return 1 for failures and assert for internal functions 2023-12-04 22:55:20 +00:00
rotate_common.cc Fix warnings for missing prototypes 2023-06-30 17:46:56 +00:00
rotate_gcc.cc Transpose 4x4 for SSE2 and AVX2 2023-03-03 17:46:23 +00:00
rotate_lsx.cc DetilePlane and unittest for NEON 2022-01-31 20:05:55 +00:00
rotate_msa.cc Switch to C99 types 2018-01-23 19:16:05 +00:00
rotate_neon64.cc MergeUV_AVX512BW for I420ToNV12 2023-02-13 20:14:57 +00:00
rotate_neon.cc GCC warning fix for MT2T 2023-03-16 06:57:20 +00:00
rotate_win.cc Switch win32 to row_gcc for clangcl. 2021-04-22 19:32:32 +00:00
rotate.cc malloc return 1 for failures and assert for internal functions 2023-12-04 22:55:20 +00:00
row_any.cc [AArch64] Use Neon dot-product instructions in ARGBToYMatrixRow 2024-04-09 03:09:36 +00:00
row_common.cc [RVV] Support AR64ToAB64 and RGBA-family color conversions 2023-09-05 22:44:48 +00:00
row_gcc.cc YUY2ToARGB use ymm6/7 for shuffle constants 2024-01-22 21:47:23 +00:00
row_lasx.cc AVX10 cpuid detect added 2024-01-10 00:08:22 +00:00
row_lsx.cc Fix compilation errors. 2024-01-03 19:15:56 +00:00
row_msa.cc Fix Bugs on mips platform V2. 2022-03-01 13:16:31 +00:00
row_neon64.cc [AArch64] Replace UQXTN{,2} with UZP2 in Convert16To8Row_NEON 2024-04-25 21:23:55 +00:00
row_neon.cc [AArch64] Replace instances of ORR with MOV where possible 2024-04-25 20:48:16 +00:00
row_rvv.cc [RVV] Support AR64ToAB64 and RGBA-family color conversions 2023-09-05 22:44:48 +00:00
row_sve.cc [AArch64] Add SVE2 implementation for I444ToARGBRow 2024-04-09 03:11:01 +00:00
row_win.cc Fix tidy warning that uint32_t dither4 should not be const 2023-06-02 00:42:02 +00:00
scale_any.cc UVScale down by 2 fix for C and optimize for NEON 2023-04-12 22:49:20 +00:00
scale_argb.cc Add HAS_SCALEARGBROWDOWNEVEN_RVV marco and disable it by default 2023-12-07 22:54:23 +00:00
scale_common.cc Fix warnings for missing prototypes 2023-06-30 17:46:56 +00:00
scale_gcc.cc ScaleRowUp2_Bilinear_12_SSSE3 preserve xmm7 for Windows 2022-10-21 19:35:17 +00:00
scale_lsx.cc DetilePlane and unittest for NEON 2022-01-31 20:05:55 +00:00
scale_msa.cc Switch to C99 types 2018-01-23 19:16:05 +00:00
scale_neon64.cc [AArch64] Replace instances of ORR with MOV where possible 2024-04-25 20:48:16 +00:00
scale_neon.cc UVScale down by 2 fix for C and optimize for NEON 2023-04-12 22:49:20 +00:00
scale_rgb.cc RGBScale function using 3 steps: RGB24ToARGB, ARGBScale, ARGBToRGB24 2022-03-19 01:44:06 +00:00
scale_rvv.cc Add HAS_SCALEARGBROWDOWNEVEN_RVV marco and disable it by default 2023-12-07 22:54:23 +00:00
scale_uv.cc malloc return 1 for failures and assert for internal functions 2023-12-04 22:55:20 +00:00
scale_win.cc Switch win32 to row_gcc for clangcl. 2021-04-22 19:32:32 +00:00
scale.cc malloc return 1 for failures and assert for internal functions 2023-12-04 22:55:20 +00:00
test.sh Optimze ABGRToI420 for AVX2 2020-06-04 18:24:45 +00:00
video_common.cc Lint cleanup after C99 change CL 2018-01-24 19:16:03 +00:00