experimental path-builder

src/core/SkPathIter.cpp

+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkPathIter.h"
+
+bool SkPathIter::next() {
+    if (fStopVerbs == fVerbs) {
+        return false;
+    }
+
+#if 0
+    const uint8_t gPtsPerVerb[] = {
+        1,  // Move
+        1,  // Line
+        2,  // Quad
+        2,  // Conic
+        3,  // Cubic
+        0,  // Close
+    };
+#endif
+    
+    fCurrPts += fPrevPtsPerVerb;
+    SkPathVerb verb = (SkPathVerb)(*--fVerbs);
+#if 0
+    fPrevPtsPerVerb = gPtsPerVerb[verb];
+#elif 0
+    fPrevPtsPerVerb = ((verb >> 1) + 1) & -(kClose_SkPathVerb == verb);
+#else
+    fPrevPtsPerVerb = (verb >> 4) & 7;
+#endif
+    fNextPts += fPrevPtsPerVerb;
+    fConicW += (verb >> 7);//(kConic_SkPathVerb == verb);
+    return true;
+}
+