tree 42e5b97665fb01b8ab0f74dc38b26f9c5f44c8d1
parent d77f719178118b33f22b951aefc9f8d3ac00fa33
author Jonathan Wright <jonathan.wright@arm.com> 1699456556 +0000
committer James Zern <jzern@google.com> 1699572166 +0000

Specialize HBD Neon Wiener convolution vert. pass by bitdepth

The narrowing shift values used in the vertical 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: Iad02a42821bdb1324a10e8c0e7b41af280ccdecf