tree 68da71fcdb937319775793c029372df39a3803bc
parent 6a60cee5493ce1bf6b35bf5cedea8c2cc7fd08d1
author Jonathan Wright <jonathan.wright@arm.com> 1699455506 +0000
committer James Zern <jzern@google.com> 1699572166 +0000

Specialize HBD Neon Wiener convolution horiz. pass by bitdepth

The narrowing shift values used in the horizontal pass of Wiener
convolution differ depending on the bitdepth. Since we can eliminate
2 relatively expensive instructions from the inner loop of the
convolution kernel if we supply compile-time constants, specialize
the path by bitdepth. (Bitdpeths 8 and 10 use the same shift values
so we only actually need one extra path.)

Change-Id: Ie36e028e62ff78d3901b7d13138dc5a61ab3534b