1 files changed, 4 insertions, 0 deletions
diff --git a/libs/hwui/Vector.h b/libs/hwui/Vector.h
index d033ed9..aa6acc9 100644
--- a/libs/hwui/Vector.h
+++ b/libs/hwui/Vector.h
@@ -99,6 +99,10 @@ struct Vector2 {
         return x * v.x + y * v.y;
     }
 
+    float cross(const Vector2& v) const {
+        return x * v.y - y * v.x;
+    }
+
     void dump() {
         ALOGD("Vector2[%.2f, %.2f]", x, y);
     }