path ops work in progress

src/pathops/SkPathOpsSpan.h

-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#ifndef SkOpSpan_DEFINED
-#define SkOpSpan_DEFINED
-
-#include "SkPoint.h"
-
-class SkOpSegment;
-
-struct SkOpSpan {
-    SkOpSegment* fOther;
-    SkPoint fPt; // computed when the curves are intersected
-    double fT;
-    double fOtherT; // value at fOther[fOtherIndex].fT
-    int fOtherIndex;  // can't be used during intersection
-    int fWindSum; // accumulated from contours surrounding this one.
-    int fOppSum; // for binary operators: the opposite winding sum
-    int fWindValue; // 0 == canceled; 1 == normal; >1 == coincident
-    int fOppValue; // normally 0 -- when binary coincident edges combine, opp value goes here
-    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 fTiny; // if set, span may still be considered once for edge following
-    bool fLoop; // set when a cubic loops back to this point
-};
-
-#endif