Implement support for a Context parameter in image filters
Some upcoming work (support for expanding crop rects) requires
the clip bounds to be available during filter traversal. This change
replaces the SkMatrix parameter in the onFilterImage() traversals
with a Context parameter. It contains the CTM, as well as the clip
bounds.
BUG=skia:
R=reed@google.com
Review URL: https://codereview.chromium.org/189913021
git-svn-id: http://skia.googlecode.com/svn/trunk@13803 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/SkBitmapSource.cpp b/src/effects/SkBitmapSource.cpp
index dd44be7..6834e9e 100644
--- a/src/effects/SkBitmapSource.cpp
+++ b/src/effects/SkBitmapSource.cpp
@@ -42,11 +42,11 @@
buffer.writeRect(fDstRect);
}
-bool SkBitmapSource::onFilterImage(Proxy* proxy, const SkBitmap&, const SkMatrix& matrix,
+bool SkBitmapSource::onFilterImage(Proxy* proxy, const SkBitmap&, const Context& ctx,
SkBitmap* result, SkIPoint* offset) const {
SkRect bounds, dstRect;
fBitmap.getBounds(&bounds);
- matrix.mapRect(&dstRect, fDstRect);
+ ctx.ctm().mapRect(&dstRect, fDstRect);
if (fSrcRect == bounds && dstRect == bounds) {
// No regions cropped out or resized; return entire bitmap.
*result = fBitmap;