Sindre Aamås 7cbb75eac6 [Processing] Pick dyadic downsample function based on stride
Assume that data can be written into the padding area following each
line. This enables the use of faster routines for more cases.

Align downsample buffer stride to a multiple of 32.

With this all strides used should be a multiple of 16, which means
that use of narrower downsample routines can be dropped altogether.
2016-06-02 13:44:28 +02:00
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