Frank Barchard af714f0810 Convert8To16 use shift to allow scale=65536
- Add avx512bw, neon 32 bit and RVV versions
- Adapt SSE2 to psrlw instead of pmulhuw

CPU                             Before   After    Improvement
---------------------------------------------------------------
Granite Rapids (AVX10)           77 ms    75 ms   +2.6% (1.03x)
Emerald Rapids (AVX512)          75 ms    67 ms  +10.7% (1.12x)
Sapphire Rapids (AVX512)         91 ms    85 ms   +6.6% (1.07x)
AMD Venice Zen 6 (AVX512)        30 ms    30 ms    0.0% (1.00x)
AMD Turin Zen 5 (AVX512)         32 ms    32 ms    0.0% (1.00x)
AMD Genoa Zen 4 (AVX512)         35 ms    36 ms   -2.9% (0.97x)
Skylake-X (AVX512)              119 ms   119 ms    0.0% (1.00x)
Ice Lake (AVX512)                93 ms   104 ms  -11.8% (0.89x)
AMD Milan Zen 3 (AVX2)           43 ms    44 ms   -2.3% (0.98x)
Haswell (AVX2)                  129 ms   138 ms   -7.0% (0.93x)
NVIDIA Grace (SVE2)              42 ms    43 ms   -2.4% (0.98x)
Neoverse-N1 (NEON)               87 ms    87 ms    0.0% (1.00x)
---------------------------------------------------------------


Bug: None
Change-Id: Ia8f310a70c8b1229927fcdf117fe22e131d70ea9
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8330912
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: richard winterton <rrwinterton@gmail.com>
2026-09-01 12:21:37 -07:00
..
libyuv Convert8To16 use shift to allow scale=65536 2026-09-01 12:21:37 -07:00
libyuv.h libyuv.h: Add scale_rgb.h and remove scale_row.h 2026-08-26 19:06:22 -07:00