path ops work in progress

src/pathops/SkOpSpan.h

Index: src/pathops/SkOpSpan.h
diff --git a/src/pathops/SkOpSpan.h b/src/pathops/SkOpSpan.h
index 3666623fbe0e2b1e07c756ada98f4262163a7723..50c76d2640cd8d33903646e64945d61151c5e446 100644
--- a/src/pathops/SkOpSpan.h
+++ b/src/pathops/SkOpSpan.h
@@ -12,6 +12,10 @@
 class SkOpSegment;
 
 struct SkOpSpan {
+    enum PointMatch {
+        kPointIsExact,
+        kPointIsNear
+    };
     SkOpSegment* fOther;
     SkPoint fPt;  // computed when the curves are intersected
     double fT;
@@ -24,8 +28,14 @@ struct SkOpSpan {
     bool fDone;  // if set, this span to next higher T has been processed
     bool fUnsortableStart;  // set when start is part of an unsortable pair
     bool fUnsortableEnd;  // set when end is part of an unsortable pair
+    bool fSmall;   // if set, consecutive points are almost equal
     bool fTiny;  // if set, span may still be considered once for edge following
     bool fLoop;  // set when a cubic loops back to this point
+    bool fNear;  // set if point is near segment end point
+
+#ifdef SK_DEBUG
+    void dump() const;
+#endif
 };
 
 #endif