things work pretty well up to this point
it's time to apply recent deletion of binary code
algorithms to the unary code path
git-svn-id: http://skia.googlecode.com/svn/trunk@6788 2bbb7eff-a529-9590-31e7-b0007b416f81
Complete rewrite of binary logic makes the result
work and much easier to understand.
git-svn-id: http://skia.googlecode.com/svn/trunk@6597 2bbb7eff-a529-9590-31e7-b0007b416f81
