fail early if coincidence can't be resolved

Bail out if a very large value causes coincidence resolution to
fail.

TBR=
BUG=415866

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/585913002

9 files changed, 300 insertions, 91 deletions

diff --git a/src/pathops/SkAddIntersections.cpp b/src/pathops/SkAddIntersections.cpp
index 52e751bd08..27422eda5f 100644
--- a/src/pathops/SkAddIntersections.cpp
+++ b/src/pathops/SkAddIntersections.cpp
@@ -434,7 +434,7 @@ void AddSelfIntersectTs(SkOpContour* test) {
 
 // resolve any coincident pairs found while intersecting, and
 // see if coincidence is formed by clipping non-concident segments
-void CoincidenceCheck(SkTArray<SkOpContour*, true>* contourList, int total) {
+bool CoincidenceCheck(SkTArray<SkOpContour*, true>* contourList, int total) {
     int contourCount = (*contourList).count();
     for (int cIndex = 0; cIndex < contourCount; ++cIndex) {
         SkOpContour* contour = (*contourList)[cIndex];
@@ -446,10 +446,13 @@ void CoincidenceCheck(SkTArray<SkOpContour*, true>* contourList, int total) {
     }
     for (int cIndex = 0; cIndex < contourCount; ++cIndex) {
         SkOpContour* contour = (*contourList)[cIndex];
-        contour->calcCoincidentWinding();
+        if (!contour->calcCoincidentWinding()) {
+            return false;
+        }
     }
     for (int cIndex = 0; cIndex < contourCount; ++cIndex) {
         SkOpContour* contour = (*contourList)[cIndex];
         contour->calcPartialCoincidentWinding();
     }
+    return true;
 }
diff --git a/src/pathops/SkAddIntersections.h b/src/pathops/SkAddIntersections.h
index 94ea436b73..4c1947b635 100644
--- a/src/pathops/SkAddIntersections.h
+++ b/src/pathops/SkAddIntersections.h
@@ -13,6 +13,6 @@
 
 bool AddIntersectTs(SkOpContour* test, SkOpContour* next);
 void AddSelfIntersectTs(SkOpContour* test);
-void CoincidenceCheck(SkTArray<SkOpContour*, true>* contourList, int total);
+bool CoincidenceCheck(SkTArray<SkOpContour*, true>* contourList, int total);
 
 #endif
diff --git a/src/pathops/SkOpContour.cpp b/src/pathops/SkOpContour.cpp
index 467fab31f5..6d6ad7926e 100644
--- a/src/pathops/SkOpContour.cpp
+++ b/src/pathops/SkOpContour.cpp
@@ -267,7 +267,7 @@ bool SkOpContour::calcAngles() {
     return true;
 }
 
-void SkOpContour::calcCoincidentWinding() {
+bool SkOpContour::calcCoincidentWinding() {
     int count = fCoincidences.count();
 #if DEBUG_CONCIDENT
     if (count > 0) {
@@ -276,8 +276,11 @@ void SkOpContour::calcCoincidentWinding() {
 #endif
     for (int index = 0; index < count; ++index) {
         SkCoincidence& coincidence = fCoincidences[index];
-         calcCommonCoincidentWinding(coincidence);
+        if (!calcCommonCoincidentWinding(coincidence)) {
+            return false;
+        }
     }
+    return true;
 }
 
 void SkOpContour::calcPartialCoincidentWinding() {
@@ -471,11 +474,11 @@ void SkOpContour::checkCoincidentPair(const SkCoincidence& oneCoin, int oneIdx,
             addTo2->addTCancel(missingPt1, missingPt2, addOther2);
         }
     } else if (missingT1 >= 0) {
-        addTo1->addTCoincident(missingPt1, missingPt2, addTo1 == addTo2 ? missingT2 : otherT2,
-                addOther1);
+        SkAssertResult(addTo1->addTCoincident(missingPt1, missingPt2,
+                addTo1 == addTo2 ? missingT2 : otherT2, addOther1));
     } else {
-        addTo2->addTCoincident(missingPt2, missingPt1, addTo2 == addTo1 ? missingT1 : otherT1,
-                addOther2);
+        SkAssertResult(addTo2->addTCoincident(missingPt2, missingPt1,
+                addTo2 == addTo1 ? missingT1 : otherT1, addOther2));
     }
 }
 
@@ -543,20 +546,20 @@ void SkOpContour::joinCoincidence(const SkTArray<SkCoincidence, true>& coinciden
     }
 }
 
-void SkOpContour::calcCommonCoincidentWinding(const SkCoincidence& coincidence) {
+bool SkOpContour::calcCommonCoincidentWinding(const SkCoincidence& coincidence) {
     if (coincidence.fNearly[0] && coincidence.fNearly[1]) {
-        return;
+        return true;
     }
     int thisIndex = coincidence.fSegments[0];
     SkOpSegment& thisOne = fSegments[thisIndex];
     if (thisOne.done()) {
-        return;
+        return true;
     }
     SkOpContour* otherContour = coincidence.fOther;
     int otherIndex = coincidence.fSegments[1];
     SkOpSegment& other = otherContour->fSegments[otherIndex];
     if (other.done()) {
-        return;
+        return true;
     }
     double startT = coincidence.fTs[0][0];
     double endT = coincidence.fTs[0][1];
@@ -577,15 +580,17 @@ void SkOpContour::calcCommonCoincidentWinding(const SkCoincidence& coincidence)
     }
     bump_out_close_span(&oStartT, &oEndT);
     SkASSERT(!approximately_negative(oEndT - oStartT));
+    bool success = true;
     if (cancelers) {
         thisOne.addTCancel(*startPt, *endPt, &other);
     } else {
-        thisOne.addTCoincident(*startPt, *endPt, endT, &other);
+        success = thisOne.addTCoincident(*startPt, *endPt, endT, &other);
     }
 #if DEBUG_CONCIDENT
     thisOne.debugShowTs("p");
     other.debugShowTs("o");
 #endif
+    return success;
 }
 
 void SkOpContour::resolveNearCoincidence() {
diff --git a/src/pathops/SkOpContour.h b/src/pathops/SkOpContour.h
index d1b3cd0179..899367ab0e 100644
--- a/src/pathops/SkOpContour.h
+++ b/src/pathops/SkOpContour.h
@@ -114,7 +114,7 @@ public:
     }
 
     bool calcAngles();
-    void calcCoincidentWinding();
+    bool calcCoincidentWinding();
     void calcPartialCoincidentWinding();
 
     void checkDuplicates() {
@@ -325,7 +325,7 @@ public:
 private:
     void alignPt(int index, SkPoint* point, int zeroPt) const;
     int alignT(bool swap, int tIndex, SkIntersections* ts) const;
-    void calcCommonCoincidentWinding(const SkCoincidence& );
+    bool calcCommonCoincidentWinding(const SkCoincidence& );
     void checkCoincidentPair(const SkCoincidence& oneCoin, int oneIdx,
                              const SkCoincidence& twoCoin, int twoIdx, bool partial);
     void joinCoincidence(const SkTArray<SkCoincidence, true>& , bool partial);
diff --git a/src/pathops/SkOpSegment.cpp b/src/pathops/SkOpSegment.cpp
index 5208a38667..2dda11a383 100644
--- a/src/pathops/SkOpSegment.cpp
+++ b/src/pathops/SkOpSegment.cpp
@@ -1271,7 +1271,7 @@ void SkOpSegment::bumpCoincidentOther(const SkOpSpan& test, int* oIndexPtr,
 
 // set spans from start to end to increment the greater by one and decrement
 // the lesser
-void SkOpSegment::addTCoincident(const SkPoint& startPt, const SkPoint& endPt, double endT,
+bool SkOpSegment::addTCoincident(const SkPoint& startPt, const SkPoint& endPt, double endT,
         SkOpSegment* other) {
     bool binary = fOperand != other->fOperand;
     int index = 0;
@@ -1303,7 +1303,10 @@ void SkOpSegment::addTCoincident(const SkPoint& startPt, const SkPoint& endPt, d
     // SkASSERT(AlmostEqualUlps(*testPt, *oTestPt));
     do {
         SkASSERT(test->fT < 1);
-        SkASSERT(oTest->fT < 1);
+        if (oTest->fT == 1) {
+            // paths with extreme data may be so mismatched that we fail here
+            return false;
+        }
 
         // consolidate the winding count even if done
         if ((test->fWindValue == 0 && test->fOppValue == 0)
@@ -1409,6 +1412,7 @@ void SkOpSegment::addTCoincident(const SkPoint& startPt, const SkPoint& endPt, d
     }
     setCoincidentRange(startPt, endPt, other);
     other->setCoincidentRange(startPt, endPt, this);
+    return true;
 }
 
 // FIXME: this doesn't prevent the same span from being added twice
@@ -2422,8 +2426,8 @@ nextSmallCheck:
             do {
                 ++nextSpan;
             } while (nextSpan->fSmall);
-            missing.fSegment->addTCoincident(missing.fPt, nextSpan->fPt, nextSpan->fT,
-                    missingOther);
+            SkAssertResult(missing.fSegment->addTCoincident(missing.fPt, nextSpan->fPt,
+                    nextSpan->fT, missingOther));
         } else if (otherSpan.fT > 0) {
             const SkOpSpan* priorSpan = &otherSpan;
             do {
@@ -2494,7 +2498,7 @@ void SkOpSegment::checkSmallCoincidence(const SkOpSpan& span,
     }
 //    SkASSERT(oSpan.fSmall);
     if (oStartIndex < oEndIndex) {
-        addTCoincident(span.fPt, next->fPt, next->fT, other);
+        SkAssertResult(addTCoincident(span.fPt, next->fPt, next->fT, other));
     } else {
         addTCancel(span.fPt, next->fPt, other);
     }
@@ -2539,7 +2543,7 @@ void SkOpSegment::checkSmallCoincidence(const SkOpSpan& span,
                         oTest->fOtherT, tTest->fT);
 #endif
                 if (tTest->fT < oTest->fOtherT) {
-                    addTCoincident(span.fPt, next->fPt, next->fT, testOther);
+                    SkAssertResult(addTCoincident(span.fPt, next->fPt, next->fT, testOther));
                 } else {
                     addTCancel(span.fPt, next->fPt, testOther);
                 }
@@ -3428,7 +3432,7 @@ bool SkOpSegment::joinCoincidence(SkOpSegment* other, double otherT, const SkPoi
             if (cancel) {
                 match->addTCancel(startPt, endPt, other);
             } else {
-                match->addTCoincident(startPt, endPt, endT, other);
+                SkAssertResult(match->addTCoincident(startPt, endPt, endT, other));
             }
             return true;
         }
diff --git a/src/pathops/SkOpSegment.h b/src/pathops/SkOpSegment.h
index df87d058b6..24d08bd814 100644
--- a/src/pathops/SkOpSegment.h
+++ b/src/pathops/SkOpSegment.h
@@ -284,7 +284,7 @@ public:
     void addStartSpan(int endIndex);
     int addT(SkOpSegment* other, const SkPoint& pt, double newT);
     void addTCancel(const SkPoint& startPt, const SkPoint& endPt, SkOpSegment* other);
-    void addTCoincident(const SkPoint& startPt, const SkPoint& endPt, double endT,
+    bool addTCoincident(const SkPoint& startPt, const SkPoint& endPt, double endT,
                         SkOpSegment* other);
     const SkOpSpan* addTPair(double t, SkOpSegment* other, double otherT, bool borrowWind,
                              const SkPoint& pt);
diff --git a/src/pathops/SkPathOpsCommon.cpp b/src/pathops/SkPathOpsCommon.cpp
index 9a8a2cf4e3..f7b7273a8d 100644
--- a/src/pathops/SkPathOpsCommon.cpp
+++ b/src/pathops/SkPathOpsCommon.cpp
@@ -699,7 +699,9 @@ bool HandleCoincidence(SkTArray<SkOpContour*, true>* contourList, int total) {
 #if DEBUG_SHOW_WINDING
     SkOpContour::debugShowWindingValues(contourList);
 #endif
-    CoincidenceCheck(contourList, total);
+    if (!CoincidenceCheck(contourList, total)) {
+        return false;
+    }
 #if DEBUG_SHOW_WINDING
     SkOpContour::debugShowWindingValues(contourList);
 #endif
diff --git a/tests/PathOpsOpTest.cpp b/tests/PathOpsOpTest.cpp
index 0b0e02438e..4977b28c30 100644
--- a/tests/PathOpsOpTest.cpp
+++ b/tests/PathOpsOpTest.cpp
@@ -3511,7 +3511,7 @@ static void issue2808(skiatest::Reporter* reporter, const char* filename) {
     testPathOp(reporter, path1, path2, kUnion_PathOp, filename);
 }
 
-static void (*firstTest)(skiatest::Reporter* , const char* filename) = cubicOp95u;
+static void (*firstTest)(skiatest::Reporter* , const char* filename) = 0;
 static void (*stopTest)(skiatest::Reporter* , const char* filename) = 0;
 
 static struct TestDesc tests[] = {
@@ -3807,7 +3807,101 @@ static void fuzz433b(skiatest::Reporter* reporter, const char* filename) {
     testPathFailOp(reporter, path1, path2, kUnion_PathOp, filename);
 }
 
+static void fuzz487a(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4309999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4309999a), SkBits2Float(0x429a6666), SkBits2Float(0x42f9999a), SkBits2Float(0x4275999a), SkBits2Float(0x42d70001), SkBits2Float(0x42633333));
+path.lineTo(SkBits2Float(0x42e90001), SkBits2Float(0x41b8cccc));
+path.cubicTo(SkBits2Float(0x42dc6667), SkBits2Float(0x41ab3332), SkBits2Float(0x42cf3334), SkBits2Float(0x41a3ffff), SkBits2Float(0x42c20001), SkBits2Float(0x41a3ffff));
+path.lineTo(SkBits2Float(0x42c20001), SkBits2Float(0x425d999a));
+path.lineTo(SkBits2Float(0x42c20001), SkBits2Float(0x425d999a));
+path.cubicTo(SkBits2Float(0x429c6668), SkBits2Float(0x425d999a), SkBits2Float(0x4279999c), SkBits2Float(0x42886667), SkBits2Float(0x42673335), SkBits2Float(0x42ab0000));
+path.lineTo(SkBits2Float(0x41c0ccd0), SkBits2Float(0x42990000));
+path.cubicTo(SkBits2Float(0x41b33336), SkBits2Float(0x42a5999a), SkBits2Float(0x41ac0003), SkBits2Float(0x42b2cccd), SkBits2Float(0x41ac0003), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999c), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999c), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4261999c), SkBits2Float(0x434d3333), SkBits2Float(0x4364e667), SkBits2Float(0x4346b333), SkBits2Float(0x4364e667), SkBits2Float(0x43400000));
+path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.close();
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4309999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4309999a), SkBits2Float(0x42a20000), SkBits2Float(0x43016667), SkBits2Float(0x4287cccd), SkBits2Float(0x42ea999a), SkBits2Float(0x4273999a));
+path.lineTo(SkBits2Float(0x4306cccd), SkBits2Float(0x41f5999a));
+path.cubicTo(SkBits2Float(0x42f76667), SkBits2Float(0x41c26667), SkBits2Float(0x42dd999a), SkBits2Float(0x41a4cccd), SkBits2Float(0x42c23334), SkBits2Float(0x41a4cccd));
+path.lineTo(SkBits2Float(0x42c23334), SkBits2Float(0x425e0000));
+path.cubicTo(SkBits2Float(0x42a43334), SkBits2Float(0x425e0000), SkBits2Float(0x428a0001), SkBits2Float(0x427ecccd), SkBits2Float(0x42780002), SkBits2Float(0x4297999a));
+path.lineTo(SkBits2Float(0x41fccccd), SkBits2Float(0x42693333));
+path.cubicTo(SkBits2Float(0x41c9999a), SkBits2Float(0x428acccd), SkBits2Float(0x41ac0000), SkBits2Float(0x42a4999a), SkBits2Float(0x41ac0000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4261999a), SkBits2Float(0x42de0000), SkBits2Float(0x42813333), SkBits2Float(0x42f83333), SkBits2Float(0x42996666), SkBits2Float(0x4303199a));
+path.cubicTo(SkBits2Float(0x4272cccc), SkBits2Float(0x4303199a), SkBits2Float(0x423d3332), SkBits2Float(0x430de667), SkBits2Float(0x422d9999), SkBits2Float(0x431cb334));
+path.lineTo(SkBits2Float(0x7086a1dc), SkBits2Float(0x42eecccd));
+path.lineTo(SkBits2Float(0x41eb3333), SkBits2Float(0xc12ccccd));
+path.lineTo(SkBits2Float(0x42053333), SkBits2Float(0xc1cccccd));
+path.lineTo(SkBits2Float(0x42780000), SkBits2Float(0xc18f3334));
+path.cubicTo(SkBits2Float(0x43206666), SkBits2Float(0x43134ccd), SkBits2Float(0x43213333), SkBits2Float(0x430db333), SkBits2Float(0x43213333), SkBits2Float(0x43080000));
+path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.close();
+
+    SkPath path2(path);
+    testPathFailOp(reporter, path1, path2, (SkPathOp) 2, filename);
+}
+
+static void fuzz487b(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4309999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4309999a), SkBits2Float(0x429a6666), SkBits2Float(0x42f9999a), SkBits2Float(0x4275999a), SkBits2Float(0x42d70001), SkBits2Float(0x42633333));
+path.lineTo(SkBits2Float(0x42e90001), SkBits2Float(0x41b8cccc));
+path.cubicTo(SkBits2Float(0x42dc6667), SkBits2Float(0x41ab3332), SkBits2Float(0x42cf3334), SkBits2Float(0x41a3ffff), SkBits2Float(0x42c20001), SkBits2Float(0x41a3ffff));
+path.lineTo(SkBits2Float(0x42c20001), SkBits2Float(0x425d999a));
+path.lineTo(SkBits2Float(0x42c20001), SkBits2Float(0x425d999a));
+path.cubicTo(SkBits2Float(0x429c6668), SkBits2Float(0x425d999a), SkBits2Float(0x4279999c), SkBits2Float(0x42886667), SkBits2Float(0x42673335), SkBits2Float(0x42ab0000));
+path.lineTo(SkBits2Float(0x41c0ccd0), SkBits2Float(0x42990000));
+path.cubicTo(SkBits2Float(0x41b33336), SkBits2Float(0x42a5999a), SkBits2Float(0x41ac0003), SkBits2Float(0x42b2cccd), SkBits2Float(0x41ac0003), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999c), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999c), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4261999c), SkBits2Float(0x434d3333), SkBits2Float(0x4364e667), SkBits2Float(0x4346b333), SkBits2Float(0x4364e667), SkBits2Float(0x43400000));
+path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.close();
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4309999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4309999a), SkBits2Float(0x42a20000), SkBits2Float(0x43016667), SkBits2Float(0x4287cccd), SkBits2Float(0x42ea999a), SkBits2Float(0x4273999a));
+path.lineTo(SkBits2Float(0x4306cccd), SkBits2Float(0x41f5999a));
+path.cubicTo(SkBits2Float(0x42f76667), SkBits2Float(0x41c26667), SkBits2Float(0x42dd999a), SkBits2Float(0x41a4cccd), SkBits2Float(0x42c23334), SkBits2Float(0x41a4cccd));
+path.lineTo(SkBits2Float(0x42c23334), SkBits2Float(0x425e0000));
+path.cubicTo(SkBits2Float(0x42a43334), SkBits2Float(0x425e0000), SkBits2Float(0x428a0001), SkBits2Float(0x427ecccd), SkBits2Float(0x42780002), SkBits2Float(0x4297999a));
+path.lineTo(SkBits2Float(0x41fccccd), SkBits2Float(0x42693333));
+path.cubicTo(SkBits2Float(0x41c9999a), SkBits2Float(0x428acccd), SkBits2Float(0x41ac0000), SkBits2Float(0x42a4999a), SkBits2Float(0x41ac0000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4261999a), SkBits2Float(0x42de0000), SkBits2Float(0x42813333), SkBits2Float(0x42f83333), SkBits2Float(0x42996666), SkBits2Float(0x4303199a));
+path.cubicTo(SkBits2Float(0x4272cccc), SkBits2Float(0x4303199a), SkBits2Float(0x423d3332), SkBits2Float(0x430de667), SkBits2Float(0x422d9999), SkBits2Float(0x431cb334));
+path.lineTo(SkBits2Float(0x7086a1dc), SkBits2Float(0x42eecccd));
+path.lineTo(SkBits2Float(0x41eb3333), SkBits2Float(0xc12ccccd));
+path.lineTo(SkBits2Float(0x42053333), SkBits2Float(0xc1cccccd));
+path.lineTo(SkBits2Float(0x42780000), SkBits2Float(0xc18f3334));
+path.cubicTo(SkBits2Float(0x43206666), SkBits2Float(0x43134ccd), SkBits2Float(0x43213333), SkBits2Float(0x430db333), SkBits2Float(0x43213333), SkBits2Float(0x43080000));
+path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.close();
+
+    SkPath path2(path);
+    testPathFailOp(reporter, path1, path2, (SkPathOp) 2, filename);
+}
+
 static struct TestDesc failTests[] = {
+    TEST(fuzz487a),
+    TEST(fuzz487b),
     TEST(fuzz433b),
     TEST(fuzz433),
     TEST(bufferOverflow),
diff --git a/tools/pathops_visualizer.htm b/tools/pathops_visualizer.htm
index 825f5f67ab..eece69b73b 100644
--- a/tools/pathops_visualizer.htm
+++ b/tools/pathops_visualizer.htm
@@ -1,71 +1,172 @@
 <html>
 <head>
 <div height="0" hidden="true">
-
-<div id="battleOp6001">
-  RunTestSet [battleOp6001]
-
-{{0,-59.9999962}, {0,-83}},
-{{0,-83}, {0.0189378317,-83}, {0.0378723554,-82.9999924}, {0.0568068773,-82.9999771}},
-{{0.0568068773,-82.9999771}, {0.06248549,-82.9999771}},
-{{0.06248549,-82.9999771}, {0.0451734141,-59.9999847}},
-{{0.0451734141,-59.9999847}, {0.0438041016,-59.9999886}, {0.0424379632,-59.9999886}, {0.0410718247,-59.9999886}},
-{{0.0410718247,-59.9999886}, {0.0410667397,-59.9999847}},
-{{0.0410667397,-59.9999847}, {0.0273789354,-59.9999924}, {0.0136889406,-59.9999962}, {0,-59.9999962}},
+<div id="fuzz487a">
+  RunTestSet [fuzz487a]
+
+{{172.5,96}, {137.600006,96}},
+{{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}},
+{{107.500008,56.7999992}, {116.500008,23.0999985}},
+{{116.500008,23.0999985}, {110.200005,21.3999977}, {103.600006,20.4999981}, {97.0000076,20.4999981}},
+{{97.0000076,20.4999981}, {97.0000076,55.4000015}},
+{{97.0000076,55.4000015}, {97.0000076,55.4000015}},
+{{97.0000076,55.4000015}, {78.2000122,55.4000015}, {62.4000092,68.2000046}, {57.8000069,85.5}},
+{{57.8000069,85.5}, {24.1000061,76.5}},
+{{24.1000061,76.5}, {22.4000053,82.8000031}, {21.5000057,89.4000015}, {21.5000057,96}},
+{{21.5000057,96}, {56.4000092,96}},
+{{56.4000092,96}, {56.4000092,96}},
+{{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}},
+{{228.900009,192}, {172.5,96}},
 op union
-{{0.0624898896,-82.9999771}, {0.0931733027,-82.9999542}, {0.123859018,-82.9999084}, {0.154544711,-82.999855}},
-{{0.154544711,-82.999855}, {0.111722,-59.999897}},
-{{0.111722,-59.999897}, {0.0895366594,-59.999939}, {0.0673542097,-59.9999695}, {0.0451717526,-59.9999847}},
-{{0.0451717526,-59.9999847}, {0.0624898896,-82.9999771}},
-debugShowCubicIntersection no self intersect {{0,-83}, {0.0189378317,-83}, {0.0378723554,-82.9999924}, {0.0568068773,-82.9999771}}
-debugShowCubicIntersection no self intersect {{0.0451734141,-59.9999847}, {0.0438041016,-59.9999886}, {0.0424379632,-59.9999886}, {0.0410718247,-59.9999886}}
-debugShowCubicIntersection no self intersect {{0.0410667397,-59.9999847}, {0.0273789354,-59.9999924}, {0.0136889406,-59.9999962}, {0,-59.9999962}}
-debugShowCubicLineIntersection wtTs[0]=0 {{0,-83}, {0.0189378317,-83}, {0.0378723554,-82.9999924}, {0.0568068773,-82.9999771}} {{0,-83}} wnTs[0]=1 {{0,-59.9999962}, {0,-83}}
-debugShowCubicLineIntersection wtTs[0]=1 {{0.0410667397,-59.9999847}, {0.0273789354,-59.9999924}, {0.0136889406,-59.9999962}, {0,-59.9999962}} {{0,-59.9999962}} wnTs[0]=0 {{0,-59.9999962}, {0,-83}}
-debugShowCubicLineIntersection wtTs[0]=1 {{0,-83}, {0.0189378317,-83}, {0.0378723554,-82.9999924}, {0.0568068773,-82.9999771}} {{0.0568068773,-82.9999771}} wnTs[0]=0 {{0.0568068773,-82.9999771}, {0.06248549,-82.9999771}}
-debugShowCubicLineIntersection no intersect {{0,-83}, {0.0189378317,-83}, {0.0378723554,-82.9999924}, {0.0568068773,-82.9999771}} {{0.06248549,-82.9999771}, {0.0451734141,-59.9999847}}
-debugShowLineIntersection wtTs[0]=0 {{0.06248549,-82.9999771}, {0.0451734141,-59.9999847}} {{0.06248549,-82.9999771}} wnTs[0]=1 {{0.0568068773,-82.9999771}, {0.06248549,-82.9999771}}
-debugShowCubicLineIntersection wtTs[0]=0 {{0.0451734141,-59.9999847}, {0.0438041016,-59.9999886}, {0.0424379632,-59.9999886}, {0.0410718247,-59.9999886}} {{0.0451734141,-59.9999847}} wnTs[0]=1 {{0.06248549,-82.9999771}, {0.0451734141,-59.9999847}}
-debugShowCubicLineIntersection wtTs[0]=1 {{0.0451734141,-59.9999847}, {0.0438041016,-59.9999886}, {0.0424379632,-59.9999886}, {0.0410718247,-59.9999886}} {{0.0410718247,-59.9999886}} wnTs[0]=0 {{0.0410718247,-59.9999886}, {0.0410667397,-59.9999847}}
-debugShowCubicLineIntersection wtTs[0]=0 {{0.0410667397,-59.9999847}, {0.0273789354,-59.9999924}, {0.0136889406,-59.9999962}, {0,-59.9999962}} {{0.0410667397,-59.9999847}} wnTs[0]=1 {{0.0410718247,-59.9999886}, {0.0410667397,-59.9999847}}
-debugShowCubicLineIntersection no intersect {{0,-83}, {0.0189378317,-83}, {0.0378723554,-82.9999924}, {0.0568068773,-82.9999771}} {{0.0451717526,-59.9999847}, {0.0624898896,-82.9999771}}
-debugShowLineIntersection wtTs[0]=1 {{0.0451717526,-59.9999847}, {0.0624898896,-82.9999771}} {{0.06248549,-82.9999771}} wnTs[0]=1 {{0.0568068773,-82.9999771}, {0.06248549,-82.9999771}}
-debugShowCubicLineIntersection wtTs[0]=0.999975033 {{0.111722,-59.999897}, {0.0895366594,-59.999939}, {0.0673542097,-59.9999695}, {0.0451717526,-59.9999847}} {{0.0451734141,-59.9999847}} wnTs[0]=1 {{0.06248549,-82.9999771}, {0.0451734141,-59.9999847}}
-debugShowLineIntersection wtTs[0]=0 {{0.06248549,-82.9999771}, {0.0451734141,-59.9999847}} {{0.06248549,-82.9999771}} wtTs[1]=1 {{0.0451734141,-59.9999847}} wnTs[0]=1 {{0.0451717526,-59.9999847}, {0.0624898896,-82.9999771}} wnTs[1]=5.43926879e-011
-debugShowCubicIntersection wtTs[0]=0.000404455511 {{0.0451734141,-59.9999847}, {0.0438041016,-59.9999886}, {0.0424379632,-59.9999886}, {0.0410718247,-59.9999886}} {{0.0451717526,-59.9999847}} wnTs[0]=1 {{0.111722,-59.999897}, {0.0895366594,-59.999939}, {0.0673542097,-59.9999695}, {0.0451717526,-59.9999847}}
-debugShowCubicLineIntersection wtTs[0]=0 {{0.0451734141,-59.9999847}, {0.0438041016,-59.9999886}, {0.0424379632,-59.9999886}, {0.0410718247,-59.9999886}} {{0.0451734141,-59.9999847}} wtTs[1]=0.000404455438 {{0.0451717526,-59.9999847}} wnTs[0]=5.43927e-011 {{0.0451717526,-59.9999847}, {0.0624898896,-82.9999771}} wnTs[1]=0
-debugShowCubicIntersection no self intersect {{0.0624898896,-82.9999771}, {0.0931733027,-82.9999542}, {0.123859018,-82.9999084}, {0.154544711,-82.999855}}
-debugShowCubicIntersection no self intersect {{0.111722,-59.999897}, {0.0895366594,-59.999939}, {0.0673542097,-59.9999695}, {0.0451717526,-59.9999847}}
-debugShowCubicLineIntersection wtTs[0]=1 {{0.0624898896,-82.9999771}, {0.0931733027,-82.9999542}, {0.123859018,-82.9999084}, {0.154544711,-82.999855}} {{0.154544711,-82.999855}} wnTs[0]=0 {{0.154544711,-82.999855}, {0.111722,-59.999897}}
-debugShowCubicLineIntersection wtTs[0]=0 {{0.0624898896,-82.9999771}, {0.0931733027,-82.9999542}, {0.123859018,-82.9999084}, {0.154544711,-82.999855}} {{0.0624898896,-82.9999771}} wnTs[0]=1 {{0.0451717526,-59.9999847}, {0.0624898896,-82.9999771}}
-debugShowCubicLineIntersection wtTs[0]=0 {{0.111722,-59.999897}, {0.0895366594,-59.999939}, {0.0673542097,-59.9999695}, {0.0451717526,-59.9999847}} {{0.111722,-59.999897}} wnTs[0]=1 {{0.154544711,-82.999855}, {0.111722,-59.999897}}
-debugShowCubicLineIntersection wtTs[0]=1 {{0.111722,-59.999897}, {0.0895366594,-59.999939}, {0.0673542097,-59.9999695}, {0.0451717526,-59.9999847}} {{0.0451717526,-59.9999847}} wnTs[0]=0 {{0.0451717526,-59.9999847}, {0.0624898896,-82.9999771}}
-SkOpSegment::debugShowTs - id=3 [o=2 t=0 0.06248549,-82.9999771 w=1 o=0] [o=9,4 t=1 0.0451734141,-59.9999847 w=1 o=0]
-SkOpSegment::debugShowTs o id=10 [o=9,4 t=0 0.0451717526,-59.9999847 w=1 o=0] [o=4 t=5.44e-011 0.0451734141,-59.9999847 w=1 o=0] [o=2 t=1 0.06248549,-82.9999771 w=1 o=0] [o=7 t=1 0.0624898896,-82.9999771 w=1 o=0] operand
-SkOpSegment::addTPair addTPair this=3 0 other=10 1
-SkOpSegment::addTPair addTPair this=10 5.43926879e-011 other=3 1
-SkOpSegment::debugShowTs + id=3 [o=10,2 t=0 0.06248549,-82.9999771 w=1 o=0] [o=10,9,4 t=1 0.0451734141,-59.9999847 w=1 o=0]
-SkOpSegment::debugShowTs o id=10 [o=9,4 t=0 0.0451717526,-59.9999847 w=1 o=0] [o=3,4 t=5.44e-011 0.0451734141,-59.9999847 w=1 o=0] [o=3,2 t=1 0.06248549,-82.9999771 w=1 o=0] [o=7 t=1 0.0624898896,-82.9999771 w=1 o=0] operand
-SkOpContour::calcCoincidentWinding count=1
-SkOpSegment::debugShowTs p id=3 [o=10,2 t=0 0.06248549,-82.9999771 w=1 o=-1] [o=10,9,4 t=1 0.0451734141,-59.9999847 w=1 o=0]
-SkOpSegment::debugShowTs o id=10 [o=9,4 t=0 0.0451717526,-59.9999847 w=1 o=0] [o=3,4 t=5.44e-011 0.0451734141,-59.9999847 w=0 o=0] [o=3,2 t=1 0.06248549,-82.9999771 w=1 o=0] [o=7 t=1 0.0624898896,-82.9999771 w=1 o=0] operand
-SkOpContour::calcPartialCoincidentWinding count=1
-SkOpSegment::debugShowTs p id=4 [o=10,3 t=0 0.0451734141,-59.9999847 w=1 o=-1] [o=10 t=0.000404 0.0451717526,-59.9999847 w=1 o=0] [o=9 t=0.000404 0.0451717526,-59.9999847 w=1 o=0] [o=5 t=1 0.0410718247,-59.9999886 w=1 o=0]
-SkOpSegment::debugShowTs o id=10 [o=9,4 t=0 0.0451717526,-59.9999847 w=0 o=0] [o=3,4 t=5.44e-011 0.0451734141,-59.9999847 w=0 o=0] [o=3,2 t=1 0.06248549,-82.9999771 w=1 o=0] [o=7 t=1 0.0624898896,-82.9999771 w=1 o=0] operand
-SkOpSegment::checkEnds id=4 missing t=0 other=9 otherT=0.999975033 pt=(0.0451734141,-59.9999847)
-SkOpSegment::addTPair addTPair this=4 0 other=9 0.999975033
-SkOpSegment::checkEnds id=9 missing t=0.999975033 other=10 otherT=5.43926879e-011 pt=(0.0451734141,-59.9999847)
-SkOpSegment::addTPair addTPair other duplicate this=9 0.999975033 other=10 5.43926879e-011
-SkOpSegment::addTPair addTPair duplicate this=10 5.43926879e-011 other=9 0.999975033
-SkOpSegment::addTPair addTPair other duplicate this=9 0.999975033 other=10 5.43926879e-011
-SkOpSegment::addTPair addTPair other duplicate this=9 0.999975033 other=10 5.43926879e-011
-SkOpSegment::addTPair addTPair duplicate this=10 5.43926879e-011 other=9 0.999975033
-SkOpSegment::addTPair addTPair other duplicate this=9 0.999975033 other=10 5.43926879e-011
-SkOpSegment::addTPair addTPair other duplicate this=9 0.999975033 other=10 5.43926879e-011
-SkOpSegment::addTPair addTPair duplicate this=10 5.43926879e-011 other=9 0.999975033
-SkOpSegment::addTPair addTPair duplicate this=10 5.43926879e-011 other=9 0.999975033
-SkOpContour::joinCoincidence count=1
-SkOpContour::joinCoincidence count=1
+{{172.5,96}, {137.600006,96}},
+{{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}},
+{{117.300003,60.9000015}, {134.800003,30.7000008}},
+{{134.800003,30.7000008}, {123.700005,24.3000011}, {110.800003,20.6000004}, {97.1000061,20.6000004}},
+{{97.1000061,20.6000004}, {97.1000061,55.5}},
+{{97.1000061,55.5}, {82.1000061,55.5}, {69.0000076,63.7000008}, {62.0000076,75.8000031}},
+{{62.0000076,75.8000031}, {31.6000004,58.2999992}},
+{{31.6000004,58.2999992}, {25.2000008,69.4000015}, {21.5,82.3000031}, {21.5,96}},
+{{21.5,96}, {56.4000015,96}},
+{{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}},
+{{76.6999969,131.100006}, {60.6999969,131.100006}, {47.2999954,141.900009}, {43.3999977,156.700012}},
+{{43.3999977,156.700012}, {3.33333338e+029,119.400002}},
+{{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}},
+{{29.3999996,-10.8000002}, {33.2999992,-25.6000004}},
+{{33.2999992,-25.6000004}, {62,-17.9000015}},
+{{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}},
+{{161.199997,136}, {172.5,96}},
+debugShowCubicIntersection no self intersect {{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}}
+debugShowCubicIntersection no self intersect {{134.800003,30.7000008}, {123.700005,24.3000011}, {110.800003,20.6000004}, {97.1000061,20.6000004}}
+debugShowCubicIntersection no self intersect {{97.1000061,55.5}, {82.1000061,55.5}, {69.0000076,63.7000008}, {62.0000076,75.8000031}}
+debugShowCubicIntersection no self intersect {{31.6000004,58.2999992}, {25.2000008,69.4000015}, {21.5,82.3000031}, {21.5,96}}
+debugShowCubicIntersection no self intersect {{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}}
+debugShowCubicIntersection no self intersect {{76.6999969,131.100006}, {60.6999969,131.100006}, {47.2999954,141.900009}, {43.3999977,156.700012}}
+debugShowCubicIntersection no self intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}}
+debugShowCubicLineIntersection wtTs[0]=0 {{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}} {{137.600006,96}} wnTs[0]=1 {{172.5,96}, {137.600006,96}}
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{137.600006,96}} wnTs[0]=1 {{172.5,96}, {137.600006,96}}
+debugShowCubicLineIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{172.5,96}, {137.600006,96}}
+debugShowLineIntersection wtTs[0]=1 {{161.199997,136}, {172.5,96}} {{172.5,96}} wnTs[0]=0 {{172.5,96}, {137.600006,96}}
+debugShowCubicLineIntersection wtTs[0]=1 {{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}} {{117.300003,60.9000015}} wnTs[0]=0 {{117.300003,60.9000015}, {134.800003,30.7000008}}
+debugShowCubicLineIntersection wtTs[0]=0 {{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}} {{137.600006,96}} wtTs[1]=1 {{117.300003,60.9000015}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} wnTs[1]=1
+debugShowCubicIntersection no intersect {{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}} {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}}
+debugShowCubicLineIntersection wtTs[0]=0 {{134.800003,30.7000008}, {123.700005,24.3000011}, {110.800003,20.6000004}, {97.1000061,20.6000004}} {{134.800003,30.7000008}} wnTs[0]=1 {{117.300003,60.9000015}, {134.800003,30.7000008}}
+debugShowLineIntersection wtTs[0]=0 {{117.300003,60.9000015}, {134.800003,30.7000008}} {{117.300003,60.9000015}} wtTs[1]=1 {{134.800003,30.7000008}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} wnTs[1]=1
+debugShowCubicLineIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{117.300003,60.9000015}, {134.800003,30.7000008}}
+debugShowCubicLineIntersection wtTs[0]=1 {{134.800003,30.7000008}, {123.700005,24.3000011}, {110.800003,20.6000004}, {97.1000061,20.6000004}} {{97.1000061,20.6000004}} wnTs[0]=0 {{97.1000061,20.6000004}, {97.1000061,55.5}}
+debugShowCubicLineIntersection wtTs[0]=0 {{134.800003,30.7000008}, {123.700005,24.3000011}, {110.800003,20.6000004}, {97.1000061,20.6000004}} {{134.800003,30.7000008}} wtTs[1]=1 {{97.1000061,20.6000004}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} wnTs[1]=1
+debugShowCubicIntersection no intersect {{134.800003,30.7000008}, {123.700005,24.3000011}, {110.800003,20.6000004}, {97.1000061,20.6000004}} {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}}
+debugShowCubicLineIntersection wtTs[0]=0 {{97.1000061,55.5}, {82.1000061,55.5}, {69.0000076,63.7000008}, {62.0000076,75.8000031}} {{97.1000061,55.5}} wnTs[0]=1 {{97.1000061,20.6000004}, {97.1000061,55.5}}
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{97.1000061,20.6000004}} wnTs[0]=0 {{97.1000061,20.6000004}, {97.1000061,55.5}}
+debugShowCubicLineIntersection wtTs[0]=0.13656589 {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{97.1000061,40.6604424}} wnTs[0]=0.574798 {{97.1000061,20.6000004}, {97.1000061,55.5}}
+debugShowCubicLineIntersection wtTs[0]=1 {{97.1000061,55.5}, {82.1000061,55.5}, {69.0000076,63.7000008}, {62.0000076,75.8000031}} {{62.0000076,75.8000031}} wnTs[0]=0 {{62.0000076,75.8000031}, {31.6000004,58.2999992}}
+debugShowCubicLineIntersection wtTs[0]=0 {{97.1000061,55.5}, {82.1000061,55.5}, {69.0000076,63.7000008}, {62.0000076,75.8000031}} {{97.1000061,55.5}} wtTs[1]=1 {{62.0000076,75.8000031}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} wnTs[1]=1
+debugShowCubicIntersection no intersect {{97.1000061,55.5}, {82.1000061,55.5}, {69.0000076,63.7000008}, {62.0000076,75.8000031}} {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}}
+debugShowCubicLineIntersection wtTs[0]=0 {{31.6000004,58.2999992}, {25.2000008,69.4000015}, {21.5,82.3000031}, {21.5,96}} {{31.6000004,58.2999992}} wnTs[0]=1 {{62.0000076,75.8000031}, {31.6000004,58.2999992}}
+debugShowLineIntersection wtTs[0]=0 {{62.0000076,75.8000031}, {31.6000004,58.2999992}} {{62.0000076,75.8000031}} wtTs[1]=1 {{31.6000004,58.2999992}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} wnTs[1]=1
+debugShowCubicLineIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{62.0000076,75.8000031}, {31.6000004,58.2999992}}
+debugShowCubicLineIntersection wtTs[0]=1 {{31.6000004,58.2999992}, {25.2000008,69.4000015}, {21.5,82.3000031}, {21.5,96}} {{21.5,96}} wnTs[0]=0 {{21.5,96}, {56.4000015,96}}
+debugShowCubicLineIntersection wtTs[0]=0 {{31.6000004,58.2999992}, {25.2000008,69.4000015}, {21.5,82.3000031}, {21.5,96}} {{31.6000004,58.2999992}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}}
+debugShowCubicLineIntersection wtTs[0]=0 {{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}} {{56.4000015,96}} wnTs[0]=1 {{21.5,96}, {56.4000015,96}}
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{56.4000015,96}} wnTs[0]=1 {{21.5,96}, {56.4000015,96}}
+debugShowCubicIntersection wtTs[0]=1 {{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}} {{76.6999969,131.100006}} wnTs[0]=0 {{76.6999969,131.100006}, {60.6999969,131.100006}, {47.2999954,141.900009}, {43.3999977,156.700012}}
+debugShowCubicLineIntersection wtTs[0]=1 {{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}} {{76.6999969,131.100006}} wnTs[0]=0 {{43.3999977,156.700012}, {3.33333338e+029,119.400002}}
+debugShowCubicLineIntersection wtTs[0]=0 {{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}} {{56.4000015,96}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}}
+debugShowCubicIntersection no intersect {{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}} {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}}
+debugShowCubicLineIntersection wtTs[0]=0 {{76.6999969,131.100006}, {60.6999969,131.100006}, {47.2999954,141.900009}, {43.3999977,156.700012}} {{76.6999969,131.100006}} wtTs[1]=1 {{43.3999977,156.700012}} wnTs[0]=0 {{43.3999977,156.700012}, {3.33333338e+029,119.400002}} wnTs[1]=0
+debugShowCubicIntersection no intersect {{76.6999969,131.100006}, {60.6999969,131.100006}, {47.2999954,141.900009}, {43.3999977,156.700012}} {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}}
+debugShowLineIntersection wtTs[0]=1 {{43.3999977,156.700012}, {3.33333338e+029,119.400002}} {{3.33333338e+029,119.400002}} wnTs[0]=0 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}}
+debugShowCubicLineIntersection wtTs[0]=1 {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{161.199997,136}} wnTs[0]=0 {{43.3999977,156.700012}, {3.33333338e+029,119.400002}}
+debugShowLineIntersection wtTs[0]=0 {{43.3999977,156.700012}, {3.33333338e+029,119.400002}} {{161.199997,136}} wnTs[0]=0 {{161.199997,136}, {172.5,96}}
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{29.3999996,-10.8000002}} wnTs[0]=0 {{29.3999996,-10.8000002}, {33.2999992,-25.6000004}}
+debugShowCubicLineIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}}
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{172.5,96}} wnTs[0]=1 {{161.199997,136}, {172.5,96}}
+debugShowLineIntersection wtTs[0]=1 {{29.3999996,-10.8000002}, {33.2999992,-25.6000004}} {{33.2999992,-25.6000004}} wnTs[0]=0 {{33.2999992,-25.6000004}, {62,-17.9000015}}
+debugShowCubicLineIntersection wtTs[0]=0 {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{62,-17.9000015}} wnTs[0]=1 {{33.2999992,-25.6000004}, {62,-17.9000015}}
+debugShowCubicLineIntersection wtTs[0]=1 {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{161.199997,136}} wnTs[0]=0 {{161.199997,136}, {172.5,96}}
+debugShowLineIntersection wtTs[0]=0 {{172.5,96}, {137.600006,96}} {{172.5,96}} wtTs[1]=1 {{137.600006,96}} wnTs[0]=0 {{172.5,96}, {137.600006,96}} wnTs[1]=1
+debugShowCubicLineIntersection wtTs[0]=0 {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}} {{137.600006,96}} wnTs[0]=1 {{172.5,96}, {137.600006,96}}
+debugShowCubicLineIntersection no intersect {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}} {{172.5,96}, {137.600006,96}}
+debugShowLineIntersection wtTs[0]=1 {{228.900009,192}, {172.5,96}} {{172.5,96}} wnTs[0]=0 {{172.5,96}, {137.600006,96}}
+debugShowCubicLineIntersection wtTs[0]=0 {{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}} {{137.600006,96}} wnTs[0]=1 {{172.5,96}, {137.600006,96}}
+debugShowCubicIntersection wtTs[0]=0 {{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}} {{137.600006,96}} wnTs[0]=0 {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}}
+debugShowCubicIntersection no intersect {{137.600006,96}, {137.600006,81}, {129.400009,67.9000015}, {117.300003,60.9000015}} {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}}
+debugShowCubicLineIntersection wtTs[0]=0.798977321 {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}} {{117.320122,60.8652802}} wnTs[0]=0.00114967 {{117.300003,60.9000015}, {134.800003,30.7000008}}
+debugShowCubicLineIntersection wtTs[0]=0.511418257 {{134.800003,30.7000008}, {123.700005,24.3000011}, {110.800003,20.6000004}, {97.1000061,20.6000004}} {{116.491173,23.1330757}} wnTs[0]=0.999019 {{107.500008,56.7999992}, {116.500008,23.0999985}}
+debugShowCubicIntersection no intersect {{134.800003,30.7000008}, {123.700005,24.3000011}, {110.800003,20.6000004}, {97.1000061,20.6000004}} {{116.500008,23.0999985}, {110.200005,21.3999977}, {103.600006,20.4999981}, {97.0000076,20.4999981}}
+debugShowCubicLineIntersection no intersect {{116.500008,23.0999985}, {110.200005,21.3999977}, {103.600006,20.4999981}, {97.0000076,20.4999981}} {{97.1000061,20.6000004}, {97.1000061,55.5}}
+debugShowCubicIntersection no intersect {{97.1000061,55.5}, {82.1000061,55.5}, {69.0000076,63.7000008}, {62.0000076,75.8000031}} {{97.0000076,55.4000015}, {78.2000122,55.4000015}, {62.4000092,68.2000046}, {57.8000069,85.5}}
+debugShowCubicLineIntersection wtTs[0]=0.799679553 {{97.0000076,55.4000015}, {78.2000122,55.4000015}, {62.4000092,68.2000046}, {57.8000069,85.5}} {{61.8468246,75.7118225}} wnTs[0]=0.00503891 {{62.0000076,75.8000031}, {31.6000004,58.2999992}}
+debugShowCubicLineIntersection no intersect {{31.6000004,58.2999992}, {25.2000008,69.4000015}, {21.5,82.3000031}, {21.5,96}} {{57.8000069,85.5}, {24.1000061,76.5}}
+debugShowCubicIntersection wtTs[0]=1 {{31.6000004,58.2999992}, {25.2000008,69.4000015}, {21.5,82.3000031}, {21.5,96}} {{21.5,96}} wnTs[0]=1 {{24.1000061,76.5}, {22.4000053,82.8000031}, {21.5000057,89.4000015}, {21.5000057,96}}
+debugShowCubicLineIntersection no intersect {{31.6000004,58.2999992}, {25.2000008,69.4000015}, {21.5,82.3000031}, {21.5,96}} {{21.5000057,96}, {56.4000092,96}}
+debugShowCubicLineIntersection wtTs[0]=1 {{24.1000061,76.5}, {22.4000053,82.8000031}, {21.5000057,89.4000015}, {21.5000057,96}} {{21.5000057,96}} wnTs[0]=1.63955e-007 {{21.5,96}, {56.4000015,96}}
+debugShowLineIntersection wtTs[0]=0 {{21.5000057,96}, {56.4000092,96}} {{21.5000057,96}} wtTs[1]=0.999999781 {{56.4000015,96}} wnTs[0]=1.63955e-007 {{21.5,96}, {56.4000015,96}} wnTs[1]=1
+debugShowCubicLineIntersection no intersect {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}} {{21.5,96}, {56.4000015,96}}
+debugShowCubicLineIntersection wtTs[0]=0 {{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}} {{56.4000015,96}} wnTs[0]=1 {{21.5000057,96}, {56.4000092,96}}
+debugShowCubicIntersection wtTs[0]=0 {{56.4000015,96}, {56.4000015,111}, {64.5999985,124.099998}, {76.6999969,131.100006}} {{56.4000015,96}} wnTs[0]=0 {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}}
+debugShowCubicIntersection wtTs[0]=0.267722282 {{76.6999969,131.100006}, {60.6999969,131.100006}, {47.2999954,141.900009}, {43.3999977,156.700012}} {{64.540802,133.291794}} wnTs[0]=0.131302 {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}}
+debugShowCubicLineIntersection no intersect {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}} {{43.3999977,156.700012}, {3.33333338e+029,119.400002}}
+debugShowLineIntersection wtTs[0]=4.94283788e-028 {{43.3999977,156.700012}, {3.33333338e+029,119.400002}} {{208.16127,156.700012}} wnTs[0]=0.367708 {{228.900009,192}, {172.5,96}}
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{137.600006,96}} wnTs[0]=1 {{172.5,96}, {137.600006,96}}
+debugShowCubicLineIntersection wtTs[0]=0 {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}} {{137.600006,96}} wtTs[1]=1 {{107.500008,56.7999992}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} wnTs[1]=1
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{107.500008,56.7999992}} wnTs[0]=0 {{107.500008,56.7999992}, {116.500008,23.0999985}}
+debugShowCubicLineIntersection wtTs[0]=0 {{116.500008,23.0999985}, {110.200005,21.3999977}, {103.600006,20.4999981}, {97.0000076,20.4999981}} {{116.500008,23.0999985}} wtTs[1]=1 {{97.0000076,20.4999981}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} wnTs[1]=1
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{97.0000076,20.4999981}} wnTs[0]=0 {{97.0000076,20.4999981}, {97.0000076,55.4000015}}
+debugShowCubicLineIntersection wtTs[0]=0 {{97.0000076,55.4000015}, {78.2000122,55.4000015}, {62.4000092,68.2000046}, {57.8000069,85.5}} {{97.0000076,55.4000015}} wtTs[1]=1 {{57.8000069,85.5}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} wnTs[1]=1
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{57.8000069,85.5}} wnTs[0]=0 {{57.8000069,85.5}, {24.1000061,76.5}}
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{56.4000092,96}} wnTs[0]=1 {{21.5000057,96}, {56.4000092,96}}
+debugShowCubicLineIntersection wtTs[0]=0 {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}} {{56.4000092,96}} wnTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}}
+debugShowLineIntersection wtTs[0]=1 {{3.33333338e+029,119.400002}, {29.3999996,-10.8000002}} {{172.5,96}} wnTs[0]=1 {{228.900009,192}, {172.5,96}}
+debugShowCubicLineIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{172.5,96}, {137.600006,96}}
+debugShowCubicIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}}
+debugShowCubicLineIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{107.500008,56.7999992}, {116.500008,23.0999985}}
+debugShowCubicIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{116.500008,23.0999985}, {110.200005,21.3999977}, {103.600006,20.4999981}, {97.0000076,20.4999981}}
+debugShowCubicLineIntersection wtTs[0]=0.136112912 {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{97.0000076,40.4949226}} wnTs[0]=0.57292 {{97.0000076,20.4999981}, {97.0000076,55.4000015}}
+debugShowCubicIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{97.0000076,55.4000015}, {78.2000122,55.4000015}, {62.4000092,68.2000046}, {57.8000069,85.5}}
+debugShowCubicIntersection no intersect {{62,-17.9000015}, {160.399994,147.300003}, {161.199997,141.699997}, {161.199997,136}} {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}}
+debugShowLineIntersection wtTs[0]=1 {{161.199997,136}, {172.5,96}} {{172.5,96}} wnTs[0]=0 {{172.5,96}, {137.600006,96}}
+debugShowCubicLineIntersection no intersect {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}} {{161.199997,136}, {172.5,96}}
+debugShowLineIntersection wtTs[0]=1 {{161.199997,136}, {172.5,96}} {{172.5,96}} wnTs[0]=1 {{228.900009,192}, {172.5,96}}
+debugShowCubicIntersection no self intersect {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}}
+debugShowCubicIntersection no self intersect {{116.500008,23.0999985}, {110.200005,21.3999977}, {103.600006,20.4999981}, {97.0000076,20.4999981}}
+debugShowCubicIntersection no self intersect {{97.0000076,55.4000015}, {78.2000122,55.4000015}, {62.4000092,68.2000046}, {57.8000069,85.5}}
+debugShowCubicIntersection no self intersect {{24.1000061,76.5}, {22.4000053,82.8000031}, {21.5000057,89.4000015}, {21.5000057,96}}
+debugShowCubicIntersection no self intersect {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}}
+debugShowCubicLineIntersection wtTs[0]=0 {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}} {{137.600006,96}} wnTs[0]=1 {{172.5,96}, {137.600006,96}}
+debugShowCubicLineIntersection no intersect {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}} {{172.5,96}, {137.600006,96}}
+debugShowLineIntersection wtTs[0]=1 {{228.900009,192}, {172.5,96}} {{172.5,96}} wnTs[0]=0 {{172.5,96}, {137.600006,96}}
+debugShowCubicLineIntersection wtTs[0]=1 {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}} {{107.500008,56.7999992}} wnTs[0]=0 {{107.500008,56.7999992}, {116.500008,23.0999985}}
+debugShowCubicIntersection no intersect {{137.600006,96}, {137.600006,77.1999969}, {124.800003,61.4000015}, {107.500008,56.7999992}} {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}}
+debugShowCubicLineIntersection wtTs[0]=0 {{116.500008,23.0999985}, {110.200005,21.3999977}, {103.600006,20.4999981}, {97.0000076,20.4999981}} {{116.500008,23.0999985}} wnTs[0]=1 {{107.500008,56.7999992}, {116.500008,23.0999985}}
+debugShowCubicLineIntersection wtTs[0]=1 {{116.500008,23.0999985}, {110.200005,21.3999977}, {103.600006,20.4999981}, {97.0000076,20.4999981}} {{97.0000076,20.4999981}} wnTs[0]=0 {{97.0000076,20.4999981}, {97.0000076,55.4000015}}
+debugShowCubicLineIntersection wtTs[0]=0 {{97.0000076,55.4000015}, {78.2000122,55.4000015}, {62.4000092,68.2000046}, {57.8000069,85.5}} {{97.0000076,55.4000015}} wnTs[0]=1 {{97.0000076,20.4999981}, {97.0000076,55.4000015}}
+debugShowCubicLineIntersection wtTs[0]=1 {{97.0000076,55.4000015}, {78.2000122,55.4000015}, {62.4000092,68.2000046}, {57.8000069,85.5}} {{57.8000069,85.5}} wnTs[0]=0 {{57.8000069,85.5}, {24.1000061,76.5}}
+debugShowCubicLineIntersection wtTs[0]=0 {{24.1000061,76.5}, {22.4000053,82.8000031}, {21.5000057,89.4000015}, {21.5000057,96}} {{24.1000061,76.5}} wnTs[0]=1 {{57.8000069,85.5}, {24.1000061,76.5}}
+debugShowCubicLineIntersection wtTs[0]=1 {{24.1000061,76.5}, {22.4000053,82.8000031}, {21.5000057,89.4000015}, {21.5000057,96}} {{21.5000057,96}} wnTs[0]=0 {{21.5000057,96}, {56.4000092,96}}
+debugShowCubicLineIntersection wtTs[0]=0 {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}} {{56.4000092,96}} wnTs[0]=1 {{21.5000057,96}, {56.4000092,96}}
+debugShowCubicLineIntersection wtTs[0]=1 {{56.4000092,96}, {56.4000092,205.199997}, {228.900009,198.699997}, {228.900009,192}} {{228.900009,192}} wnTs[0]=0 {{228.900009,192}, {172.5,96}}
+SkOpSegment::debugShowTs - id=13 [o=12 t=0 117.300003,60.9000015 w=1 o=0] [o=1 t=0.00115 117.320122,60.8652802 w=1 o=0] [o=14 t=1 134.800003,30.7000008 w=1 o=0] operand
+SkOpSegment::debugShowTs o id=23 [o=22 t=0 3.33333338e+029,119.400002 w=1 o=0] [o=1,0,12,11,12,14,15,14,16,16,18,20,19,10,27,2,1,3,4,3,5,6,5,9,8,24 t=1 29.3999996,-10.8000002 w=1 o=0] operand
+SkOpSegment::addTPair addTPair this=13 0 other=23 0.999999881
+SkOpSegment::debugShowTs + id=13 [o=23,12 t=0 117.300003,60.9000015 w=1 o=0] [o=1 t=0.00115 117.320122,60.8652802 w=1 o=0] [o=14 t=1 134.800003,30.7000008 w=1 o=0] operand
+SkOpSegment::debugShowTs o id=23 [o=22 t=0 3.33333338e+029,119.400002 w=1 o=0] [o=13 t=1 117.300003,60.9000015 w=1 o=0] [o=1,0,12,11,12,14,15,14,16,16,18,20,19,10,27,2,1,3,4,3,5,6,5,9,8,24 t=1 29.3999996,-10.8000002 w=1 o=0] operand
+SkOpSegment::debugShowTs - id=17 [o=16 t=0 62.0000076,75.8000031 w=1 o=0] [o=5 t=0.00504 61.8468246,75.7118225 w=1 o=0] [o=18 t=1 31.6000004,58.2999992 w=1 o=0] operand
+SkOpSegment::debugShowTs o id=23 [o=22 t=0 3.33333338e+029,119.400002 w=1 o=0] [o=13 t=1 117.300003,60.9000015 w=1 o=0] [o=1,0,12,11,12,14,15,14,16,16,18,20,19,10,27,2,1,3,4,3,5,6,5,9,8,24 t=1 29.3999996,-10.8000002 w=1 o=0] operand
+SkOpSegment::addTPair addTPair this=17 0 other=23 0.999999881
+SkOpSegment::debugShowTs + id=17 [o=23,16 t=0 62.0000076,75.8000031 w=1 o=0] [o=5 t=0.00504 61.8468246,75.7118225 w=1 o=0] [o=18 t=1 31.6000004,58.2999992 w=1 o=0] operand
+SkOpSegment::debugShowTs o id=23 [o=22 t=0 3.33333338e+029,119.400002 w=1 o=0] [o=13,17 t=1 62.0000076,75.8000031 w=1 o=0] [o=1,0,12,11,12,14,15,14,16,16,18,20,19,10,27,2,1,3,4,3,5,6,5,9,8,24 t=1 29.3999996,-10.8000002 w=1 o=0] operand
+SkOpSegment::debugShowTs - id=11 [o=10,27 t=0 172.5,96 w=1 o=0] [o=1,23,12 t=1 137.600006,96 w=1 o=0] operand
+SkOpSegment::debugShowTs o id=0 [o=10,27 t=0 172.5,96 w=1 o=0] [o=1,23,12 t=1 137.600006,96 w=1 o=0]
+SkOpSegment::debugShowTs + id=11 [o=10,27 t=0 172.5,96 w=1 o=0] [o=1,23,12 t=1 137.600006,96 w=1 o=0] operand
+SkOpSegment::debugShowTs o id=0 [o=10,27 t=0 172.5,96 w=1 o=0] [o=1,23,12 t=1 137.600006,96 w=1 o=0]
+SkOpSegment::debugShowTs - id=19 [o=18 t=0 21.5,96 w=1 o=0] [o=7 t=1.64e-007 21.5000057,96 w=1 o=0] [o=23,20 t=1 56.4000015,96 w=1 o=0] operand
+SkOpSegment::debugShowTs o id=8 [o=7 t=0 21.5000057,96 w=1 o=0] [o=20 t=1 56.4000015,96 w=1 o=0] [o=9,23 t=1 56.4000092,96 w=1 o=0]
+SkOpSegment::addTPair addTPair this=19 1.63955463e-007 other=8 0
+SkOpSegment::addTPair addTPair this=8 0.999999781 other=19 1
+SkOpSegment::debugShowTs + id=19 [o=18 t=0 21.5,96 w=1 o=0] [o=8,7 t=1.64e-007 21.5000057,96 w=1 o=0] [o=8,23,20 t=1 56.4000015,96 w=1 o=0] operand
+SkOpSegment::debugShowTs o id=8 [o=19,7 t=0 21.5000057,96 w=1 o=0] [o=19,20 t=1 56.4000015,96 w=1 o=0] [o=9,23 t=1 56.4000092,96 w=1 o=0]
+SkOpContour::calcCoincidentWinding count=4
+
 </div>
 
 </div>
@@ -73,7 +174,7 @@ SkOpContour::joinCoincidence count=1
 <script type="text/javascript">
 
 var testDivs = [
-    battleOp6001,
+    fuzz487a,
 ];
 
 var decimal_places = 3; // make this 3 to show more precision