Check the array before accessing it
TODO: Figure out why the path is generating empty polygon.
bug: 14615368
Change-Id: If116e34388b7c6a71bf5ddd36e0c9716d7450732
diff --git a/libs/hwui/ShadowTessellator.cpp b/libs/hwui/ShadowTessellator.cpp
index be49aed..55b82e4 100644
--- a/libs/hwui/ShadowTessellator.cpp
+++ b/libs/hwui/ShadowTessellator.cpp
@@ -196,6 +196,10 @@
* @param len the number of points of the polygon
*/
bool ShadowTessellator::isClockwise(const Vector2* polygon, int len) {
+ if (len < 2 || polygon == NULL) {
+ ALOGW("Invalid polygon %p, length is %d @ isClockwise()", polygon, len);
+ return true;
+ }
double sum = 0;
double p1x = polygon[len - 1].x;
double p1y = polygon[len - 1].y;