[Pixman] [PATCH v13 11/14] pixman-filter: Negative subsample values produces scaled result

[Bill Spitzak]

I have a new version of this patch, which fixes a math error that
caused it to produce too many samples at small sizes (large scales). I
am not clear if I can submit a v14 of just this patch or I should
instead submit a v14 of the entire patch series.