use conics for ovals and roundrects

src/pathops/SkOpEdgeBuilder.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkGeometry.h"
 #include "SkOpEdgeBuilder.h"
 #include "SkReduceOrder.h"
 
@@ skipping 93 matching lines @@
                     continue;  // skip degenerate points
                 }
                 break;
             case SkPath::kConic_Verb: {
                     const SkPoint* quadPts = quadder.computeQuads(pts, iter.conicWeight(),
                             quadderTol);
                     const int nQuads = quadder.countQuads();
                     for (int i = 0; i < nQuads; ++i) {
                        fPathVerbs.push_back(SkPath::kQuad_Verb);
                     }
-                    fPathPts.push_back_n(nQuads * 2, quadPts);
-                    curve[0] = quadPts[nQuads * 2 - 1];
+                    fPathPts.push_back_n(nQuads * 2, &quadPts[1]);
+                    curve[0] = pts[2];
                     lastCurve = true;
                 }
                 continue;
             case SkPath::kCubic_Verb:
                 force_small_to_zero(&pts[1]);
                 force_small_to_zero(&pts[2]);
                 force_small_to_zero(&pts[3]);
                 curve[1] = pts[1];
                 curve[2] = pts[2];
                 curve[3] = pts[3];
@@ skipping 73 matching lines @@
                 return false;
         }
         pointsPtr += SkPathOpsVerbToPoints(verb);
         SkASSERT(fCurrentContour);
     }
    if (fCurrentContour && !fAllowOpenContours && !close()) {
        return false;
    }
    return true;
 }