tree 4168e61a03da6e0e29244a2360fa4207c43ef1e1
parent 752ccce724f6390913682804cf36e9a66397afa6
author Fergus Simpson <afergs@google.com> 1491506346 -0700
committer Fergus Simpson <afergs@google.com> 1491855102 +0000

scaling: Avoid SSSE3 convolution instructions when scaling

The SSE3 convolve functions do not work when scaling is involved. If
either x_step_q4 or y_step_q4 is not 16 scaling will occur and an assert
fails.

This patch creates a C version of av1_convolve, av1_convolve_c. This
function in turn calls all C versions of what av1_convolve calls. New C
versions of these called functions have been created where needed and
the same for the functions they call. This means that when scaling is
enabled no asserts fail. av1_convolve_c is called instead of
av1_convolve when x_step_q4 or y_step_q4 is not 16.

Change-Id: I604d2716e034e23a0553fb7004133d3075514a7a