pathops version two

tests/PathOpsTSectDebug.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPathOpsTSect.h"
 
 template<typename TCurve>
+const SkTSpan<TCurve>* SkTSect<TCurve>::debugSpan(int id) const {
+    const SkTSpan<TCurve>* test = fHead;
+    do {
+        if (test->debugID() == id) {
+            return test;
+        }
+    } while ((test = test->next()));
+#ifndef SK_RELEASE
+    test = fOppSect->fHead;
+    do {
+        if (test->debugID() == id) {
+            return test;
+        }
+    } while ((test = test->next()));
+#endif
+    return NULL;
+}
+
+template<typename TCurve>
+const SkTSpan<TCurve>* SkTSect<TCurve>::debugT(double t) const {
+    const SkTSpan<TCurve>* test = fHead;
+    const SkTSpan<TCurve>* closest = NULL;
+    double bestDist = DBL_MAX;
+    do {
+        if (between(test->fStartT, t, test->fEndT)) {
+            return test;
+        }
+        double testDist = SkTMin(fabs(test->fStartT - t), fabs(test->fEndT - t));
+        if (bestDist > testDist) {
+            bestDist = testDist;
+            closest = test;
+        }
+    } while ((test = test->next()));
+    SkASSERT(closest);
+    return closest;
+}
+
+template<typename TCurve>
 void SkTSect<TCurve>::dump() const {
+    dumpCommon(fHead);
+}
+
+extern int gDumpTSectNum;
+
+template<typename TCurve>
+void SkTSect<TCurve>::dumpBoth(SkTSect* opp) const {
+#if DEBUG_T_SECT_DUMP <= 2
+#if DEBUG_T_SECT_DUMP == 2
+    SkDebugf("%d ", ++gDumpTSectNum);
+#endif
+    this->dump();
+    SkDebugf(" ");
+    opp->dump();
+    SkDebugf("\n");
+#elif DEBUG_T_SECT_DUMP == 3
+    SkDebugf("<div id=\"sect%d\">\n", ++gDumpTSectNum);
+    if (this->fHead) {
+        this->dumpCurves();
+    }
+    if (opp->fHead) {
+        PATH_OPS_DEBUG_CODE(opp->dumpCurves());
+    }
+    SkDebugf("</div>\n\n");
+#endif
+}
+
+template<typename TCurve>
+void SkTSect<TCurve>::dumpBounds(int id) const {
+    const SkTSpan<TCurve>* bounded = debugSpan(id);
+    if (!bounded) {
+        SkDebugf("no span matches %d\n", id);
+        return;
+    }
+    const SkTSpan<TCurve>* test = bounded->debugOpp()->fHead;
+    do {
+        if (test->findOppSpan(bounded)) {
+            test->dump();
+        }
+    } while ((test = test->next()));
+}
+
+template<typename TCurve>
+void SkTSect<TCurve>::dumpCoin() const {
+    dumpCommon(fCoincident);
+}
+
+template<typename TCurve>
+void SkTSect<TCurve>::dumpCoinCurves() const {
+    dumpCommonCurves(fCoincident);
+}
+
+template<typename TCurve>
+void SkTSect<TCurve>::dumpCommon(const SkTSpan<TCurve>* test) const {
     SkDebugf("id=%d", debugID());
-    const SkTSpan<TCurve>* test = fHead;
     if (!test) {
         SkDebugf(" (empty)");
         return;
     }
     do {
         SkDebugf(" ");
-        test->dump(this);
+        test->dump();
     } while ((test = test->next()));
 }
 
 template<typename TCurve>
-void SkTSect<TCurve>::dumpBoth(const SkTSect& opp) const {
-    dump();
-    SkDebugf(" ");
-    opp.dump();
-    SkDebugf("\n");
-}
-
-template<typename TCurve>
-void SkTSect<TCurve>::dumpBoth(const SkTSect* opp) const {
-    dumpBoth(*opp);
+void SkTSect<TCurve>::dumpCommonCurves(const SkTSpan<TCurve>* test) const {
+    do {
+        test->fPart.dumpID(test->debugID());
+    } while ((test = test->next()));
 }
 
 template<typename TCurve>
 void SkTSect<TCurve>::dumpCurves() const {
-    const SkTSpan<TCurve>* test = fHead;
-    do {
-        test->fPart.dump();
-    } while ((test = test->next()));
-}
-
-#if !DEBUG_T_SECT
-template<typename TCurve>
-int SkTSpan<TCurve>::debugID(const SkTSect<TCurve>* sect) const {
-    if (!sect) {
-        return -1;
-    }
-    int id = 1;
-    const SkTSpan* test = sect->fHead;
-    while (test && test != this) {
-        ++id;
-        test = test->fNext;
-    }
-    return id;
-}
-#endif
-
-template<typename TCurve>
-void SkTSpan<TCurve>::dumpID(const SkTSect<TCurve>* sect) const {
-    if (fCoinStart.isCoincident()) {
-        SkDebugf("%c", '*');
-    }
-    SkDebugf("%d", debugID(sect));
-    if (fCoinEnd.isCoincident()) {
-        SkDebugf("%c", '*');
-    }
+    dumpCommonCurves(fHead);
 }
 
 template<typename TCurve>
-void SkTSpan<TCurve>::dump(const SkTSect<TCurve>* sect) const {
-    dumpID(sect);
+const SkTSpan<TCurve>* SkTSpan<TCurve>::debugSpan(int id) const {
+    return PATH_OPS_DEBUG_RELEASE(fDebugSect->debugSpan(id), NULL);
+}
+
+template<typename TCurve>
+const SkTSpan<TCurve>* SkTSpan<TCurve>::debugT(double t) const {
+    return PATH_OPS_DEBUG_RELEASE(fDebugSect->debugT(t), NULL);
+}
+
+template<typename TCurve>
+void SkTSpan<TCurve>::dump() const {
+    dumpID();
     SkDebugf("=(%g,%g) [", fStartT, fEndT);
     for (int index = 0; index < fBounded.count(); ++index) {
         SkTSpan* span = fBounded[index];
-        span->dumpID(sect);
+        span->dumpID();
         if (index < fBounded.count() - 1) {
             SkDebugf(",");
         }
     }
     SkDebugf("]");
 }
+
+template<typename TCurve>
+void SkTSpan<TCurve>::dumpBounds(int id) const {
+    PATH_OPS_DEBUG_CODE(fDebugSect->dumpBounds(id));
+}
+
+template<typename TCurve>
+void SkTSpan<TCurve>::dumpID() const {
+    if (fCoinStart.isCoincident()) {
+        SkDebugf("%c", '*');
+    }
+    SkDebugf("%d", debugID());
+    if (fCoinEnd.isCoincident()) {
+        SkDebugf("%c", '*');
+    }
+}