Make the fallback loop very accurate.
The summation xs = xs + dx was causing xs to overflow the bounds of the source.
Change the algorithm to eliminate error accumulation. Performance is not a
concern, because the fallback should only be used in the rare cases.
R=mtklein@google.com
BUG=skia:6216
Change-Id: Iff8e55af5eb79606c7b1e693ae825ceaeda44afd
Reviewed-on: https://skia-review.googlesource.com/8975
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
1 file changed