tree be03a85b8403ad5671ced41860df6a3041884264
parent 29f351a86790fc2f996c01b996db9ef032134d90
author senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1390247908 +0000
committer senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1390247908 +0000

Apply the CTM to filter parameters for SkBlurImageFilter, SkDropShadowImageFilter, SkDisplacementMapEffect and SkMorphologyImageFilter. I had resisted this (and may later put in an assert that the CTM contains no rotation, skew or perspective), but it just makes the filters play better with Skia generally.

This revealed that the displacement map was not handling clipping or upstream cropping at all well (the color would "swim" through the displacement at the edge of the clip rect). Fixed by passing through the correct offsets to the bitmap accesses in both raster and GPU paths. Same for morphology.

R=sugoi@google.com

Review URL: https://codereview.chromium.org/137053003

git-svn-id: http://skia.googlecode.com/svn/trunk@13127 2bbb7eff-a529-9590-31e7-b0007b416f81