Fix off-by-one error in assertion; improve coverage_to_exact_alpha()
authortomhudson@google.com <tomhudson@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>
Tue, 3 Jan 2012 20:12:42 +0000 (20:12 +0000)
committertomhudson@google.com <tomhudson@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>
Tue, 3 Jan 2012 20:12:42 +0000 (20:12 +0000)
commit31bab3934c773c2bd4c1e5e9ba8eb87c1c623b09
treec2a70f0384095f2989c245a41f3be5fead37993b
parentabf00aaaa0262905ad19b0a0ed654c87276490fc
Fix off-by-one error in assertion; improve coverage_to_exact_alpha()
implementation.

http://codereview.appspot.com/5504116/

git-svn-id: http://skia.googlecode.com/svn/trunk@2947 2bbb7eff-a529-9590-31e7-b0007b416f81
src/core/SkBlitter.cpp
src/core/SkScan_AntiPath.cpp