path ops -- fix skp bugs

This fixes a series of bugs discovered by running
the small set of Skia skp files through pathops
to flatten the clips.
Review URL: https://codereview.chromium.org/14798004

git-svn-id: http://skia.googlecode.com/svn/trunk@9042 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 5 insertions, 1 deletions

diff --git a/src/pathops/SkDQuadLineIntersection.cpp b/src/pathops/SkDQuadLineIntersection.cpp
index e7e77e69e2..afaa1552e4 100644
--- a/src/pathops/SkDQuadLineIntersection.cpp
+++ b/src/pathops/SkDQuadLineIntersection.cpp
@@ -329,5 +329,9 @@ int SkIntersections::intersect(const SkDQuad& quad, const SkDLine& line) {
 
 int SkIntersections::intersectRay(const SkDQuad& quad, const SkDLine& line) {
     LineQuadraticIntersections q(quad, line, this);
-    return q.intersectRay(fT[0]);
+    fUsed = q.intersectRay(fT[0]);
+    for (int index = 0; index < fUsed; ++index) {
+        fPt[index] = quad.xyAtT(fT[0][index]);
+    }
+    return fUsed;
 }