Add support for clipstack to Gr. GrClip is now a list of rects and paths with set operations to combine them. The stencil buffer is used to perform the set operations to put the clip into the stencil buffer. Building Gr's clip from Skia's clipStack is currently disabled due to the fact that Skia's clipStack is relative to the root layer not the current layer. This will be fixed in a subsequent CL.
git-svn-id: http://skia.googlecode.com/svn/trunk@878 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/core/SkClipStack.h b/include/core/SkClipStack.h
index fb94155..db42e4d 100644
--- a/include/core/SkClipStack.h
+++ b/include/core/SkClipStack.h
@@ -29,6 +29,11 @@
class B2FIter {
public:
+ /**
+ * Creates an uninitialized iterator. Must be reset()
+ */
+ B2FIter();
+
B2FIter(const SkClipStack& stack);
struct Clip {
@@ -48,6 +53,11 @@
*/
const Clip* next();
+ /**
+ * Restarts the iterator on a clip stack.
+ */
+ void reset(const SkClipStack& stack);
+
private:
Clip fClip;
SkDeque::F2BIter fIter;