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28a8622143
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2 Commits

Author SHA1 Message Date
Johann
28a8622143 vpx_comp_avg_pred: sse2 optimization 
Provides over 15x speedup for width > 8.

Due to smaller loads and shifting for width == 8 it gets about 8x
speedup.

For width == 4 it's only about 4x speedup because there is a lot of
shuffling and shifting to get the data properly situated.

BUG=webm:1390

Change-Id: Ice0b3dbbf007be3d9509786a61e7f35e94bdffa8
 2017-04-13 08:44:52 -07:00
Johann
6e99ed72a5 vpx_comp_avg_pred: add test 
BUG=webm:1389

Change-Id: I23cd65f1939db026958ccb5d70b8c5cc9aa5bc51
 2017-03-28 14:11:14 -07:00