commit 1d265ca85f51ea1ba087ca4d0f80b008c256a47d
author robertphillips <robertphillips@google.com> Mon Dec 07 09:54:02 2015 -0800
committer Commit bot <commit-bot@chromium.org> Mon Dec 07 09:54:02 2015 -0800
tree 2d282b047d9fca7e792706c4410128d39b9480fa
parent f65fb658147da97b5010276fe99f15952e6333e3

Pin result in SkATan2_255

BUG=555544

Review URL: https://codereview.chromium.org/1506913002

src/effects/gradients/SkSweepGradient.cpp

diff --git a/src/effects/gradients/SkSweepGradient.cpp b/src/effects/gradients/SkSweepGradient.cpp
index 24e86d0..4c59351 100644
--- a/src/effects/gradients/SkSweepGradient.cpp
+++ b/src/effects/gradients/SkSweepGradient.cpp
@@ -63,6 +63,9 @@
     static const float g255Over2PI = 40.584510488433314f;
 
     float result = sk_float_atan2(y, x);
+    if (!SkScalarIsFinite(result)) {
+        return 0;
+    }
     if (result < 0) {
         result += 2 * SK_ScalarPI;
     }