George Steed f40042533c [AArch64] Add SVE2 implementation of I422ToRGB565Row
This makes use of the same approach as the Neon code to avoid redundant
narrowing and then widening shifts by instead placing the values at the
top portion of the lanes and then shifting down from there instead.

Observed reduction in runtime compared to the existing Neon code:

Cortex-A510: -41.1%
Cortex-A520: -38.2%
Cortex-A715: -21.5%
Cortex-A720: -21.6%
  Cortex-X2: -21.6%
  Cortex-X3: -22.0%
  Cortex-X4: -23.5%
Cortex-X925: -21.7%

Bug: b/42280942
Change-Id: Id84872141435566bbf94a4bbf0227554b5b5fb91
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5802966
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-10-24 21:27:39 +00:00
..
libyuv [AArch64] Add SVE2 implementation of I422ToRGB565Row 2024-10-24 21:27:39 +00:00
libyuv.h NV12 Copy, include scale_uv.h 2020-12-08 18:54:16 +00:00