commit af6f7ed8dd4288a41d0a07a1f0f0be7d6d035b33
author ztenghui <ztenghui@google.com> Tue Mar 18 17:25:49 2014 -0700
committer ztenghui <ztenghui@google.com> Thu Mar 20 15:25:47 2014 -0700
tree 1004e5d8a1120b83102fd82e0e9484f410c9d319
parent 31dc8f701fb14e185bf1c1b35d68bd7d1a42a54a

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

libs/hwui/Rect.h

diff --git a/libs/hwui/Rect.h b/libs/hwui/Rect.h
index c230149..0083b77 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 @@
             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));
     }