Round rect outline clipping
Change-Id: Iee9cf4f719f6f1917507b69189ad114fa365917b
diff --git a/libs/hwui/Snapshot.h b/libs/hwui/Snapshot.h
index e9ab1ff..435736c 100644
--- a/libs/hwui/Snapshot.h
+++ b/libs/hwui/Snapshot.h
@@ -20,6 +20,7 @@
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
+#include <utils/LinearAllocator.h>
#include <utils/RefBase.h>
#include <ui/Region.h>
@@ -27,12 +28,40 @@
#include "Layer.h"
#include "Matrix.h"
+#include "Outline.h"
#include "Rect.h"
+#include "utils/Macros.h"
namespace android {
namespace uirenderer {
/**
+ * Temporary structure holding information for a single outline clip.
+ *
+ * These structures are treated as immutable once created, and only exist for a single frame, which
+ * is why they may only be allocated with a LinearAllocator.
+ */
+class RoundRectClipState {
+public:
+ /** static void* operator new(size_t size); PURPOSELY OMITTED, allocator only **/
+ static void* operator new(size_t size, LinearAllocator& allocator) {
+ return allocator.alloc(size);
+ }
+
+ bool areaRequiresRoundRectClip(const Rect& rect) const {
+ return rect.intersects(dangerRects[0])
+ || rect.intersects(dangerRects[1])
+ || rect.intersects(dangerRects[2])
+ || rect.intersects(dangerRects[3]);
+ }
+
+ Matrix4 matrix;
+ Rect dangerRects[4];
+ Rect outlineInnerRect;
+ float outlineRadius;
+};
+
+/**
* A snapshot holds information about the current state of the rendering
* surface. A snapshot is usually created whenever the user calls save()
* and discarded when the user calls restore(). Once a snapshot is created,
@@ -133,6 +162,11 @@
const Matrix4& getOrthoMatrix() const { return mViewportData.mOrthoMatrix; }
/**
+ * Sets (and replaces) the current clipping outline
+ */
+ void setClippingOutline(LinearAllocator& allocator, const Outline* outline);
+
+ /**
* Indicates whether this snapshot should be ignored. A snapshot
* is typicalled ignored if its layer is invisible or empty.
*/
@@ -225,6 +259,14 @@
*/
float alpha;
+ /**
+ * Current clipping round rect.
+ *
+ * Points to data not owned by the snapshot, and may only be replaced by subsequent RR clips,
+ * never modified.
+ */
+ const RoundRectClipState* roundRectClipState;
+
void dump() const;
private: