commit 5af16f8d670b3ce1c7644a4737e02e2e2257614e
author bungeman@google.com <bungeman@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> Fri Sep 02 15:06:44 2011 +0000
committer bungeman@google.com <bungeman@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> Fri Sep 02 15:06:44 2011 +0000
tree fe95119fbd00a5385e40960fefac9fcf4476cb1c
parent abb061acfe81da7938811e3fc2c8b7488c9037d0

Reduce size of filter mask.
http://codereview.appspot.com/4965057/

Reduce the size of filter masks, fix HQ blur when clipped, and add tests.


git-svn-id: http://skia.googlecode.com/svn/trunk@2211 2bbb7eff-a529-9590-31e7-b0007b416f81

src/effects/SkBlurMask.cpp

diff --git a/src/effects/SkBlurMask.cpp b/src/effects/SkBlurMask.cpp
index ac1e780..5dc9f44 100644
--- a/src/effects/SkBlurMask.cpp
+++ b/src/effects/SkBlurMask.cpp
@@ -222,7 +222,9 @@
 }
 
 bool SkBlurMask::Blur(SkMask* dst, const SkMask& src,
-                      SkScalar radius, Style style, Quality quality) {
+                      SkScalar radius, Style style, Quality quality,
+                      SkIPoint* margin)
+{
     if (src.fFormat != SkMask::kA8_Format) {
         return false;
     }
@@ -247,6 +249,9 @@
 
     int padx = passCount * rx;
     int pady = passCount * ry;
+    if (margin) {
+        margin->set(padx, pady);
+    }
     dst->fBounds.set(src.fBounds.fLeft - padx, src.fBounds.fTop - pady,
         src.fBounds.fRight + padx, src.fBounds.fBottom + pady);
     dst->fRowBytes = dst->fBounds.width();