fix minor skp-found bugs

src/pathops/SkPathOpsDebug.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPathOpsDebug.h"
 #include "SkPath.h"
 
 #if defined SK_DEBUG || !FORCE_RELEASE
 
-int SkPathOpsDebug::gMaxWindSum = SK_MaxS32;
-int SkPathOpsDebug::gMaxWindValue = SK_MaxS32;
+const char* SkPathOpsDebug::kLVerbStr[] = {"", "line", "quad", "cubic"};
 
-const char* SkPathOpsDebug::kLVerbStr[] = {"", "line", "quad", "cubic"};
+#if defined(SK_DEBUG) || !FORCE_RELEASE
 int SkPathOpsDebug::gContourID;
 int SkPathOpsDebug::gSegmentID;
+#endif
 
 #if DEBUG_SORT || DEBUG_SWAP_TOP
 int SkPathOpsDebug::gSortCountDefault = SK_MaxS32;
 int SkPathOpsDebug::gSortCount;
 #endif
 
 #if DEBUG_ACTIVE_OP
 const char* SkPathOpsDebug::kPathOpStr[] = {"diff", "sect", "union", "xor"};
 #endif
 
@@ skipping 357 matching lines @@
     }
     for (int index = 0; index < fSingletonAngles.count(); ++index) {
         if (&fSingletonAngles[index] == angle) {
             return true;
         }
     }
     return false;
 }
 #endif
 
+#if DEBUG_SWAP_TOP
+int SkOpSegment::debugInflections(int tStart, int tEnd) const {
+    if (fVerb != SkPath::kCubic_Verb) {
+        return false;
+    }
+    SkDCubic dst = SkDCubic::SubDivide(fPts, fTs[tStart].fT, fTs[tEnd].fT);
+    double inflections[2];
+    return dst.findInflections(inflections);
+}
+#endif
+
 void SkOpSegment::debugReset() {
     fTs.reset();
     fAngles.reset();
 }
 
 #if DEBUG_CONCIDENT
 void SkOpSegment::debugShowTs(const char* prefix) const {
     SkDebugf("%s %s id=%d", __FUNCTION__, prefix, fID);
     int lastWind = -1;
     int lastOpp = -1;
@@ skipping 197 matching lines @@
         }
         last = &span;
         hasLoop |= last->fLoop;
     }
     SK_DEBUGBREAK(done == fDoneSpans);
     if (fAngles.count() ) {
         fAngles.begin()->debugValidateLoop();
     }
 #endif
 }