George Steed 96bbdb53ed [AArch64] Add SVE2 implementation of I422ToRGBARow
This is almost identical to the existing I422ToARGBRow_SVE2 kernel, we
just need to interleave differently for the output.

The RGBA format actually saves us an instruction compared to ARGB since
there is no need to merge in the alpha component, we can just replace
the odd elements of the alpha vector itself during the narrowing.

Also rename some existing macros to make more sense when distinguishing
between ARGB and RGBA.

Reductions in runtime observed compared to the existing Neon code:

Cortex-A510: -27.0%
Cortex-A720:  -5.3%
  Cortex-X2: -14.7%

Bug: libyuv:973
Change-Id: I1e12ff608ee49c25b918097007e16d87b39cb067
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5593797
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-06-04 18:18:07 +00:00
..
libyuv [AArch64] Add SVE2 implementation of I422ToRGBARow 2024-06-04 18:18:07 +00:00
libyuv.h NV12 Copy, include scale_uv.h 2020-12-08 18:54:16 +00:00