On Thu, 2009-07-23 at 13:15 +0300, M Joonas Pihlaja wrote: > On Thu, 23 Jul 2009, Chris Wilson wrote: > > > the polygon rasteriser computes coverage on a 255x17 sub-pixel grid > > Just as a side note: it's actually a 256x15 grid. Pixman rasterises > trapezoids using a 17x15 grid. Oops, too many factors of 255. :-) -ickle