tree 00ccc90fe1fcd4467d5242fd2b86f23ab4f319fb
parent d0bf9a4b8db148960404942e6eb889c865b1da77
author Gerda Zsejke More <gerdazsejke.more@arm.com> 1682488906 +0200
committer James Zern <jzern@google.com> 1685553677 +0000

Add Neon implementation of high bitdepth variance functions

Add Neon implementation for 8- and 12-bit high bitdepth variance
functions. Also refactor the 10-bit implementation in the same way
- only widening data processing element types when absolutely
necessary.

The implementation is mostly a backport of this libvpx change[1].

Add the corresponding tests as well.

[1]https://chromium-review.googlesource.com/c/webm/libvpx/+/4277441

Change-Id: I0d36fdac665f5a561eca660d6de241ada8280fe6