Early rejection on shadows which are outside of the clip bound.

All the computations are estimated using bounding box.
TODO: Spot shadow could have more accurate but also more expensive methods, we need
more experiments to decide.

Change-Id: I9c10c419576cee55daf0f9f278b0db78cb847447

1 files changed, 8 insertions, 0 deletions

diff --git a/libs/hwui/Rect.h b/libs/hwui/Rect.h
index c2301490c26f..0083b77777c2 100644
--- a/libs/hwui/Rect.h
+++ b/libs/hwui/Rect.h
@@ -18,6 +18,7 @@
 #define ANDROID_HWUI_RECT_H
 
 #include <cmath>
+#include <SkRect.h>
 
 #include <utils/Log.h>
 
@@ -68,6 +69,13 @@ public:
             bottom(height) {
     }
 
+    inline Rect(const SkRect& rect):
+            left(rect.fLeft),
+            top(rect.fTop),
+            right(rect.fRight),
+            bottom(rect.fBottom) {
+    }
+
     friend int operator==(const Rect& a, const Rect& b) {
         return !memcmp(&a, &b, sizeof(a));
     }