commit bdabcc4cb873dc4de39263c995900a05e6a32cf4
author liyuqian <liyuqian@google.com> Thu Nov 03 11:40:19 2016 -0700
committer Commit bot <commit-bot@chromium.org> Thu Nov 03 11:40:19 2016 -0700
tree 162166cd61a876f7bbf64664c8ac8a8c61b39463
parent 6b059bdc40d070fe08a3ff071e45be782297ab08

Fix quad convexity with only one backward dir

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2465253008

Review-Url: https://codereview.chromium.org/2465253008

src/core/SkPath.cpp

diff --git a/src/core/SkPath.cpp b/src/core/SkPath.cpp
index 4dc2f96..c1b6327 100644
--- a/src/core/SkPath.cpp
+++ b/src/core/SkPath.cpp
@@ -2405,8 +2405,9 @@
                 break;
             case kBackwards_DirChange:
                 if (fIsCurve) {
-                    fConvexity = SkPath::kConcave_Convexity;
-                    fFirstDirection = SkPathPriv::kUnknown_FirstDirection;
+                    // If any of the subsequent dir is non-backward, it'll be concave.
+                    // Otherwise, it's still convex.
+                    fExpectedDir = dir;
                 }
                 fLastVec = vec;
                 break;