commit 336d1d759590d9bedcbc5a96d0fff79861cf8f7a
author senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Mon Jan 27 21:03:17 2014 +0000
committer senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Mon Jan 27 21:03:17 2014 +0000
tree 4d903712399b986c2d7b92d18ea1d6ec7aee5120
parent 99f381ad769cc13b0f23c99c47b65c3f236e15cc

Implement a computeFastBounds() traversal for SkImageFilter.

This allows for correct culling of primitives which have image filters applied.

R=reed@google.com
BUG=skia:

Review URL: https://codereview.chromium.org/137423005

git-svn-id: http://skia.googlecode.com/svn/trunk@13207 2bbb7eff-a529-9590-31e7-b0007b416f81

include/effects/SkDisplacementMapEffect.h

diff --git a/include/effects/SkDisplacementMapEffect.h b/include/effects/SkDisplacementMapEffect.h
index d789ca2..d82a40a 100644
--- a/include/effects/SkDisplacementMapEffect.h
+++ b/include/effects/SkDisplacementMapEffect.h
@@ -37,6 +37,8 @@
                                const SkMatrix& ctm,
                                SkBitmap* dst,
                                SkIPoint* offset) SK_OVERRIDE;
+    virtual void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE;
+
 #if SK_SUPPORT_GPU
     virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; }
     virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm,
@@ -54,6 +56,8 @@
     typedef SkImageFilter INHERITED;
     SkImageFilter* getDisplacementInput() { return getInput(0); }
     SkImageFilter* getColorInput() { return getInput(1); }
+    const SkImageFilter* getDisplacementInput() const { return getInput(0); }
+    const SkImageFilter* getColorInput() const { return getInput(1); }
 };
 
 #endif